diff options
Diffstat (limited to 'target/linux/ramips/patches-4.3/0046-mmc-MIPS-ralink-add-sdhci-for-mt7620a-SoC.patch')
| -rw-r--r-- | target/linux/ramips/patches-4.3/0046-mmc-MIPS-ralink-add-sdhci-for-mt7620a-SoC.patch | 4851 |
1 files changed, 4851 insertions, 0 deletions
diff --git a/target/linux/ramips/patches-4.3/0046-mmc-MIPS-ralink-add-sdhci-for-mt7620a-SoC.patch b/target/linux/ramips/patches-4.3/0046-mmc-MIPS-ralink-add-sdhci-for-mt7620a-SoC.patch new file mode 100644 index 0000000000..dac572f336 --- /dev/null +++ b/target/linux/ramips/patches-4.3/0046-mmc-MIPS-ralink-add-sdhci-for-mt7620a-SoC.patch @@ -0,0 +1,4851 @@ +From 23147af14531cbdada194b94120ef8774f46292d Mon Sep 17 00:00:00 2001 +From: John Crispin <blogic@openwrt.org> +Date: Thu, 13 Nov 2014 19:08:40 +0100 +Subject: [PATCH 46/53] mmc: MIPS: ralink: add sdhci for mt7620a SoC + +Signed-off-by: John Crispin <blogic@openwrt.org> +--- + drivers/mmc/host/Kconfig | 2 + + drivers/mmc/host/Makefile | 1 + + drivers/mmc/host/mtk-mmc/Kconfig | 16 + + drivers/mmc/host/mtk-mmc/Makefile | 42 + + drivers/mmc/host/mtk-mmc/board.h | 137 ++ + drivers/mmc/host/mtk-mmc/dbg.c | 347 ++++ + drivers/mmc/host/mtk-mmc/dbg.h | 156 ++ + drivers/mmc/host/mtk-mmc/mt6575_sd.h | 1001 +++++++++++ + drivers/mmc/host/mtk-mmc/sd.c | 3060 ++++++++++++++++++++++++++++++++++ + 9 files changed, 4762 insertions(+) + create mode 100644 drivers/mmc/host/mtk-mmc/Kconfig + create mode 100644 drivers/mmc/host/mtk-mmc/Makefile + create mode 100644 drivers/mmc/host/mtk-mmc/board.h + create mode 100644 drivers/mmc/host/mtk-mmc/dbg.c + create mode 100644 drivers/mmc/host/mtk-mmc/dbg.h + create mode 100644 drivers/mmc/host/mtk-mmc/mt6575_sd.h + create mode 100644 drivers/mmc/host/mtk-mmc/sd.c + +diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig +index 8a1e349..47833d1 100644 +--- a/drivers/mmc/host/Kconfig ++++ b/drivers/mmc/host/Kconfig +@@ -793,3 +793,5 @@ config MMC_MTK + If you have a machine with a integrated SD/MMC card reader, say Y or M here. + This is needed if support for any SD/SDIO/MMC devices is required. + If unsure, say N. ++ ++source "drivers/mmc/host/mtk-mmc/Kconfig" +diff --git a/drivers/mmc/host/Makefile b/drivers/mmc/host/Makefile +index 4f3452a..69dd05f 100644 +--- a/drivers/mmc/host/Makefile ++++ b/drivers/mmc/host/Makefile +@@ -2,6 +2,7 @@ + # Makefile for MMC/SD host controller drivers + # + ++obj-$(CONFIG_MTK_MMC) += mtk-mmc/ + obj-$(CONFIG_MMC_ARMMMCI) += mmci.o + obj-$(CONFIG_MMC_QCOM_DML) += mmci_qcom_dml.o + obj-$(CONFIG_MMC_PXA) += pxamci.o +diff --git a/drivers/mmc/host/mtk-mmc/Kconfig b/drivers/mmc/host/mtk-mmc/Kconfig +new file mode 100644 +index 0000000..a58b0f3 +--- /dev/null ++++ b/drivers/mmc/host/mtk-mmc/Kconfig +@@ -0,0 +1,16 @@ ++config MTK_MMC ++ tristate "MTK SD/MMC" ++ depends on !MTD_NAND_RALINK ++ ++config MTK_AEE_KDUMP ++ bool "MTK AEE KDUMP" ++ depends on MTK_MMC ++ ++config MTK_MMC_CD_POLL ++ bool "Card Detect with Polling" ++ depends on MTK_MMC ++ ++config MTK_MMC_EMMC_8BIT ++ bool "eMMC 8-bit support" ++ depends on MTK_MMC && RALINK_MT7628 ++ +diff --git a/drivers/mmc/host/mtk-mmc/Makefile b/drivers/mmc/host/mtk-mmc/Makefile +new file mode 100644 +index 0000000..caead0b +--- /dev/null ++++ b/drivers/mmc/host/mtk-mmc/Makefile +@@ -0,0 +1,42 @@ ++# Copyright Statement: ++# ++# This software/firmware and related documentation ("MediaTek Software") are ++# protected under relevant copyright laws. The information contained herein ++# is confidential and proprietary to MediaTek Inc. and/or its licensors. ++# Without the prior written permission of MediaTek inc. and/or its licensors, ++# any reproduction, modification, use or disclosure of MediaTek Software, ++# and information contained herein, in whole or in part, shall be strictly prohibited. ++# ++# MediaTek Inc. (C) 2010. All rights reserved. ++# ++# BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES ++# THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE") ++# RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER ON ++# AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES, ++# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF ++# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT. ++# NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE ++# SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR ++# SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES TO LOOK ONLY TO SUCH ++# THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. RECEIVER EXPRESSLY ACKNOWLEDGES ++# THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES ++# CONTAINED IN MEDIATEK SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK ++# SOFTWARE RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR ++# STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND ++# CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE, ++# AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE, ++# OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY RECEIVER TO ++# MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE. ++# ++# The following software/firmware and/or related documentation ("MediaTek Software") ++# have been modified by MediaTek Inc. All revisions are subject to any receiver's ++# applicable license agreements with MediaTek Inc. ++ ++obj-$(CONFIG_MTK_MMC) += mtk_sd.o ++mtk_sd-objs := sd.o dbg.o ++ifeq ($(CONFIG_MTK_AEE_KDUMP),y) ++EXTRA_CFLAGS += -DMT6575_SD_DEBUG ++endif ++ ++clean: ++ @rm -f *.o modules.order .*.cmd +diff --git a/drivers/mmc/host/mtk-mmc/board.h b/drivers/mmc/host/mtk-mmc/board.h +new file mode 100644 +index 0000000..33bfc7b +--- /dev/null ++++ b/drivers/mmc/host/mtk-mmc/board.h +@@ -0,0 +1,137 @@ ++/* Copyright Statement: ++ * ++ * This software/firmware and related documentation ("MediaTek Software") are ++ * protected under relevant copyright laws. The information contained herein ++ * is confidential and proprietary to MediaTek Inc. and/or its licensors. ++ * Without the prior written permission of MediaTek inc. and/or its licensors, ++ * any reproduction, modification, use or disclosure of MediaTek Software, ++ * and information contained herein, in whole or in part, shall be strictly prohibited. ++ */ ++/* MediaTek Inc. (C) 2010. All rights reserved. ++ * ++ * BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES ++ * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE") ++ * RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER ON ++ * AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES, ++ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF ++ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT. ++ * NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE ++ * SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR ++ * SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES TO LOOK ONLY TO SUCH ++ * THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. RECEIVER EXPRESSLY ACKNOWLEDGES ++ * THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES ++ * CONTAINED IN MEDIATEK SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK ++ * SOFTWARE RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR ++ * STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND ++ * CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE, ++ * AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE, ++ * OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY RECEIVER TO ++ * MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE. ++ * ++ * The following software/firmware and/or related documentation ("MediaTek Software") ++ * have been modified by MediaTek Inc. All revisions are subject to any receiver's ++ * applicable license agreements with MediaTek Inc. ++ */ ++ ++#ifndef __ARCH_ARM_MACH_BOARD_H ++#define __ARCH_ARM_MACH_BOARD_H ++ ++#include <generated/autoconf.h> ++#include <linux/pm.h> ++/* --- chhung */ ++// #include <mach/mt6575.h> ++// #include <board-custom.h> ++/* end of chhung */ ++ ++typedef void (*sdio_irq_handler_t)(void*); /* external irq handler */ ++typedef void (*pm_callback_t)(pm_message_t state, void *data); ++ ++#define MSDC_CD_PIN_EN (1 << 0) /* card detection pin is wired */ ++#define MSDC_WP_PIN_EN (1 << 1) /* write protection pin is wired */ ++#define MSDC_RST_PIN_EN (1 << 2) /* emmc reset pin is wired */ ++#define MSDC_SDIO_IRQ (1 << 3) /* use internal sdio irq (bus) */ ++#define MSDC_EXT_SDIO_IRQ (1 << 4) /* use external sdio irq */ ++#define MSDC_REMOVABLE (1 << 5) /* removable slot */ ++#define MSDC_SYS_SUSPEND (1 << 6) /* suspended by system */ ++#define MSDC_HIGHSPEED (1 << 7) /* high-speed mode support */ ++#define MSDC_UHS1 (1 << 8) /* uhs-1 mode support */ ++#define MSDC_DDR (1 << 9) /* ddr mode support */ ++ ++ ++#define MSDC_SMPL_RISING (0) ++#define MSDC_SMPL_FALLING (1) ++ ++#define MSDC_CMD_PIN (0) ++#define MSDC_DAT_PIN (1) ++#define MSDC_CD_PIN (2) ++#define MSDC_WP_PIN (3) ++#define MSDC_RST_PIN (4) ++ ++enum { ++ MSDC_CLKSRC_48MHZ = 0, ++// MSDC_CLKSRC_26MHZ = 0, ++// MSDC_CLKSRC_197MHZ = 1, ++// MSDC_CLKSRC_208MHZ = 2 ++}; ++ ++struct msdc_hw { ++ unsigned char clk_src; /* host clock source */ ++ unsigned char cmd_edge; /* command latch edge */ ++ unsigned char data_edge; /* data latch edge */ ++ unsigned char clk_drv; /* clock pad driving */ ++ unsigned char cmd_drv; /* command pad driving */ ++ unsigned char dat_drv; /* data pad driving */ ++ unsigned long flags; /* hardware capability flags */ ++ unsigned long data_pins; /* data pins */ ++ unsigned long data_offset; /* data address offset */ ++ ++ /* config gpio pull mode */ ++ void (*config_gpio_pin)(int type, int pull); ++ ++ /* external power control for card */ ++ void (*ext_power_on)(void); ++ void (*ext_power_off)(void); ++ ++ /* external sdio irq operations */ ++ void (*request_sdio_eirq)(sdio_irq_handler_t sdio_irq_handler, void *data); ++ void (*enable_sdio_eirq)(void); ++ void (*disable_sdio_eirq)(void); ++ ++ /* external cd irq operations */ ++ void (*request_cd_eirq)(sdio_irq_handler_t cd_irq_handler, void *data); ++ void (*enable_cd_eirq)(void); ++ void (*disable_cd_eirq)(void); ++ int (*get_cd_status)(void); ++ ++ /* power management callback for external module */ ++ void (*register_pm)(pm_callback_t pm_cb, void *data); ++}; ++ ++extern struct msdc_hw msdc0_hw; ++extern struct msdc_hw msdc1_hw; ++extern struct msdc_hw msdc2_hw; ++extern struct msdc_hw msdc3_hw; ++ ++/*GPS driver*/ ++#define GPS_FLAG_FORCE_OFF 0x0001 ++struct mt3326_gps_hardware { ++ int (*ext_power_on)(int); ++ int (*ext_power_off)(int); ++}; ++extern struct mt3326_gps_hardware mt3326_gps_hw; ++ ++/* NAND driver */ ++struct mt6575_nand_host_hw { ++ unsigned int nfi_bus_width; /* NFI_BUS_WIDTH */ ++ unsigned int nfi_access_timing; /* NFI_ACCESS_TIMING */ ++ unsigned int nfi_cs_num; /* NFI_CS_NUM */ ++ unsigned int nand_sec_size; /* NAND_SECTOR_SIZE */ ++ unsigned int nand_sec_shift; /* NAND_SECTOR_SHIFT */ ++ unsigned int nand_ecc_size; ++ unsigned int nand_ecc_bytes; ++ unsigned int nand_ecc_mode; ++}; ++extern struct mt6575_nand_host_hw mt6575_nand_hw; ++ ++#endif /* __ARCH_ARM_MACH_BOARD_H */ ++ +diff --git a/drivers/mmc/host/mtk-mmc/dbg.c b/drivers/mmc/host/mtk-mmc/dbg.c +new file mode 100644 +index 0000000..4dc115b +--- /dev/null ++++ b/drivers/mmc/host/mtk-mmc/dbg.c +@@ -0,0 +1,347 @@ ++/* Copyright Statement: ++ * ++ * This software/firmware and related documentation ("MediaTek Software") are ++ * protected under relevant copyright laws. The information contained herein ++ * is confidential and proprietary to MediaTek Inc. and/or its licensors. ++ * Without the prior written permission of MediaTek inc. and/or its licensors, ++ * any reproduction, modification, use or disclosure of MediaTek Software, ++ * and information contained herein, in whole or in part, shall be strictly prohibited. ++ * ++ * MediaTek Inc. (C) 2010. All rights reserved. ++ * ++ * BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES ++ * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE") ++ * RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER ON ++ * AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES, ++ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF ++ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT. ++ * NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE ++ * SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR ++ * SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES TO LOOK ONLY TO SUCH ++ * THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. RECEIVER EXPRESSLY ACKNOWLEDGES ++ * THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES ++ * CONTAINED IN MEDIATEK SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK ++ * SOFTWARE RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR ++ * STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND ++ * CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE, ++ * AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE, ++ * OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY RECEIVER TO ++ * MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE. ++ * ++ * The following software/firmware and/or related documentation ("MediaTek Software") ++ * have been modified by MediaTek Inc. All revisions are subject to any receiver's ++ * applicable license agreements with MediaTek Inc. ++ */ ++ ++#include <linux/version.h> ++#include <linux/kernel.h> ++#include <linux/sched.h> ++#include <linux/kthread.h> ++#include <linux/delay.h> ++#include <linux/module.h> ++#include <linux/init.h> ++#include <linux/proc_fs.h> ++#include <linux/string.h> ++#include <linux/uaccess.h> ++// #include <mach/mt6575_gpt.h> /* --- by chhung */ ++#include "dbg.h" ++#include "mt6575_sd.h" ++#include <linux/seq_file.h> ++ ++static char cmd_buf[256]; ++ ++/* for debug zone */ ++unsigned int sd_debug_zone[4]={ ++ 0, ++ 0, ++ 0, ++ 0 ++}; ++ ++/* mode select */ ++u32 dma_size[4]={ ++ 512, ++ 512, ++ 512, ++ 512 ++}; ++msdc_mode drv_mode[4]={ ++ MODE_SIZE_DEP, /* using DMA or not depend on the size */ ++ MODE_SIZE_DEP, ++ MODE_SIZE_DEP, ++ MODE_SIZE_DEP ++}; ++ ++#if defined (MT6575_SD_DEBUG) ++/* for driver profile */ ++#define TICKS_ONE_MS (13000) ++u32 gpt_enable = 0; ++u32 sdio_pro_enable = 0; /* make sure gpt is enabled */ ++u32 sdio_pro_time = 0; /* no more than 30s */ ++struct sdio_profile sdio_perfomance = {0}; ++ ++#if 0 /* --- chhung */ ++void msdc_init_gpt(void) ++{ ++ GPT_CONFIG config; ++ ++ config.num = GPT6; ++ config.mode = GPT_FREE_RUN; ++ config.clkSrc = GPT_CLK_SRC_SYS; ++ config.clkDiv = GPT_CLK_DIV_1; /* 13MHz GPT6 */ ++ ++ if (GPT_Config(config) == FALSE ) ++ return; ++ ++ GPT_Start(GPT6); ++} ++#endif /* end of --- */ ++ ++u32 msdc_time_calc(u32 old_L32, u32 old_H32, u32 new_L32, u32 new_H32) ++{ ++ u32 ret = 0; ++ ++ if (new_H32 == old_H32) { ++ ret = new_L32 - old_L32; ++ } else if(new_H32 == (old_H32 + 1)) { ++ if (new_L32 > old_L32) { ++ printk("msdc old_L<0x%x> new_L<0x%x>\n", old_L32, new_L32); ++ } ++ ret = (0xffffffff - old_L32); ++ ret += new_L32; ++ } else { ++ printk("msdc old_H<0x%x> new_H<0x%x>\n", old_H32, new_H32); ++ } ++ ++ return ret; ++} ++ ++void msdc_sdio_profile(struct sdio_profile* result) ++{ ++ struct cmd_profile* cmd; ++ u32 i; ++ ++ printk("sdio === performance dump ===\n"); ++ printk("sdio === total execute tick<%d> time<%dms> Tx<%dB> Rx<%dB>\n", ++ result->total_tc, result->total_tc / TICKS_ONE_MS, ++ result->total_tx_bytes, result->total_rx_bytes); ++ ++ /* CMD52 Dump */ ++ cmd = &result->cmd52_rx; ++ printk("sdio === CMD52 Rx <%d>times tick<%d> Max<%d> Min<%d> Aver<%d>\n", cmd->count, cmd->tot_tc, ++ cmd->max_tc, cmd->min_tc, cmd->tot_tc/cmd->count); ++ cmd = &result->cmd52_tx; ++ printk("sdio === CMD52 Tx <%d>times tick<%d> Max<%d> Min<%d> Aver<%d>\n", cmd->count, cmd->tot_tc, ++ cmd->max_tc, cmd->min_tc, cmd->tot_tc/cmd->count); ++ ++ /* CMD53 Rx bytes + block mode */ ++ for (i=0; i<512; i++) { ++ cmd = &result->cmd53_rx_byte[i]; ++ if (cmd->count) { ++ printk("sdio<%6d><%3dB>_Rx_<%9d><%9d><%6d><%6d>_<%9dB><%2dM>\n", cmd->count, i, cmd->tot_tc, ++ cmd->max_tc, cmd->min_tc, cmd->tot_tc/cmd->count, ++ cmd->tot_bytes, (cmd->tot_bytes/10)*13 / (cmd->tot_tc/10)); ++ } ++ } ++ for (i=0; i<100; i++) { ++ cmd = &result->cmd53_rx_blk[i]; ++ if (cmd->count) { ++ printk("sdio<%6d><%3d>B_Rx_<%9d><%9d><%6d><%6d>_<%9dB><%2dM>\n", cmd->count, i, cmd->tot_tc, ++ cmd->max_tc, cmd->min_tc, cmd->tot_tc/cmd->count, ++ cmd->tot_bytes, (cmd->tot_bytes/10)*13 / (cmd->tot_tc/10)); ++ } ++ } ++ ++ /* CMD53 Tx bytes + block mode */ ++ for (i=0; i<512; i++) { ++ cmd = &result->cmd53_tx_byte[i]; ++ if (cmd->count) { ++ printk("sdio<%6d><%3dB>_Tx_<%9d><%9d><%6d><%6d>_<%9dB><%2dM>\n", cmd->count, i, cmd->tot_tc, ++ cmd->max_tc, cmd->min_tc, cmd->tot_tc/cmd->count, ++ cmd->tot_bytes, (cmd->tot_bytes/10)*13 / (cmd->tot_tc/10)); ++ } ++ } ++ for (i=0; i<100; i++) { ++ cmd = &result->cmd53_tx_blk[i]; ++ if (cmd->count) { ++ printk("sdio<%6d><%3d>B_Tx_<%9d><%9d><%6d><%6d>_<%9dB><%2dM>\n", cmd->count, i, cmd->tot_tc, ++ cmd->max_tc, cmd->min_tc, cmd->tot_tc/cmd->count, ++ cmd->tot_bytes, (cmd->tot_bytes/10)*13 / (cmd->tot_tc/10)); ++ } ++ } ++ ++ printk("sdio === performance dump done ===\n"); ++} ++ ++//========= sdio command table =========== ++void msdc_performance(u32 opcode, u32 sizes, u32 bRx, u32 ticks) ++{ ++ struct sdio_profile* result = &sdio_perfomance; ++ struct cmd_profile* cmd; ++ u32 block; ++ ++ if (sdio_pro_enable == 0) { ++ return; ++ } ++ ++ if (opcode == 52) { ++ cmd = bRx ? &result->cmd52_rx : &result->cmd52_tx; ++ } else if (opcode == 53) { ++ if (sizes < 512) { ++ cmd = bRx ? &result->cmd53_rx_byte[sizes] : &result->cmd53_tx_byte[sizes]; ++ } else { ++ block = sizes / 512; ++ if (block >= 99) { ++ printk("cmd53 error blocks\n"); ++ while(1); ++ } ++ cmd = bRx ? &result->cmd53_rx_blk[block] : &result->cmd53_tx_blk[block]; ++ } ++ } else { ++ return; ++ } ++ ++ /* update the members */ ++ if (ticks > cmd->max_tc){ ++ cmd->max_tc = ticks; ++ } ++ if (cmd->min_tc == 0 || ticks < cmd->min_tc) { ++ cmd->min_tc = ticks; ++ } ++ cmd->tot_tc += ticks; ++ cmd->tot_bytes += sizes; ++ cmd->count ++; ++ ++ if (bRx) { ++ result->total_rx_bytes += sizes; ++ } else { ++ result->total_tx_bytes += sizes; ++ } ++ result->total_tc += ticks; ++ ++ /* dump when total_tc > 30s */ ++ if (result->total_tc >= sdio_pro_time * TICKS_ONE_MS * 1000) { ++ msdc_sdio_profile(result); ++ memset(result, 0 , sizeof(struct sdio_profile)); ++ } ++} ++ ++//========== driver proc interface =========== ++static int msdc_debug_proc_read(struct seq_file *s, void *p) ++{ ++ seq_printf(s, "\n=========================================\n"); ++ seq_printf(s, "Index<0> + Id + Zone\n"); ++ seq_printf(s, "-> PWR<9> WRN<8> | FIO<7> OPS<6> FUN<5> CFG<4> | INT<3> RSP<2> CMD<1> DMA<0>\n"); ++ seq_printf(s, "-> echo 0 3 0x3ff >msdc_bebug -> host[3] debug zone set to 0x3ff\n"); ++ seq_printf(s, "-> MSDC[0] Zone: 0x%.8x\n", sd_debug_zone[0]); ++ seq_printf(s, "-> MSDC[1] Zone: 0x%.8x\n", sd_debug_zone[1]); ++ seq_printf(s, "-> MSDC[2] Zone: 0x%.8x\n", sd_debug_zone[2]); ++ seq_printf(s, "-> MSDC[3] Zone: 0x%.8x\n", sd_debug_zone[3]); ++ ++ seq_printf(s, "Index<1> + ID:4|Mode:4 + DMA_SIZE\n"); ++ seq_printf(s, "-> 0)PIO 1)DMA 2)SIZE\n"); ++ seq_printf(s, "-> echo 1 22 0x200 >msdc_bebug -> host[2] size mode, dma when >= 512\n"); ++ seq_printf(s, "-> MSDC[0] mode<%d> size<%d>\n", drv_mode[0], dma_size[0]); ++ seq_printf(s, "-> MSDC[1] mode<%d> size<%d>\n", drv_mode[1], dma_size[1]); ++ seq_printf(s, "-> MSDC[2] mode<%d> size<%d>\n", drv_mode[2], dma_size[2]); ++ seq_printf(s, "-> MSDC[3] mode<%d> size<%d>\n", drv_mode[3], dma_size[3]); ++ ++ seq_printf(s, "Index<3> + SDIO_PROFILE + TIME\n"); ++ seq_printf(s, "-> echo 3 1 0x1E >msdc_bebug -> enable sdio_profile, 30s\n"); ++ seq_printf(s, "-> SDIO_PROFILE<%d> TIME<%ds>\n", sdio_pro_enable, sdio_pro_time); ++ seq_printf(s, "=========================================\n\n"); ++ ++ return 0; ++} ++ ++static ssize_t msdc_debug_proc_write(struct file *file, ++ const char __user *buf, size_t count, loff_t *data) ++{ ++ int ret; ++ ++ int cmd, p1, p2; ++ int id, zone; ++ int mode, size; ++ ++ if (count == 0)return -1; ++ if(count > 255)count = 255; ++ ++ ret = copy_from_user(cmd_buf, buf, count); ++ if (ret < 0)return -1; ++ ++ cmd_buf[count] = '\0'; ++ printk("msdc Write %s\n", cmd_buf); ++ ++ sscanf(cmd_buf, "%x %x %x", &cmd, &p1, &p2); ++ ++ if(cmd == SD_TOOL_ZONE) { ++ id = p1; zone = p2; zone &= 0x3ff; ++ printk("msdc host_id<%d> zone<0x%.8x>\n", id, zone); ++ if(id >=0 && id<=3){ ++ sd_debug_zone[id] = zone; ++ } ++ else if(id == 4){ ++ sd_debug_zone[0] = sd_debug_zone[1] = zone; ++ sd_debug_zone[2] = sd_debug_zone[3] = zone; ++ } ++ else{ ++ printk("msdc host_id error when set debug zone\n"); ++ } ++ } else if (cmd == SD_TOOL_DMA_SIZE) { ++ id = p1>>4; mode = (p1&0xf); size = p2; ++ if(id >=0 && id<=3){ ++ drv_mode[id] = mode; ++ dma_size[id] = p2; ++ } ++ else if(id == 4){ ++ drv_mode[0] = drv_mode[1] = mode; ++ drv_mode[2] = drv_mode[3] = mode; ++ dma_size[0] = dma_size[1] = p2; ++ dma_size[2] = dma_size[3] = p2; ++ } ++ else{ ++ printk("msdc host_id error when select mode\n"); ++ } ++ } else if (cmd == SD_TOOL_SDIO_PROFILE) { ++ if (p1 == 1) { /* enable profile */ ++ if (gpt_enable == 0) { ++ // msdc_init_gpt(); /* --- by chhung */ ++ gpt_enable = 1; ++ } ++ sdio_pro_enable = 1; ++ if (p2 == 0) p2 = 1; if (p2 >= 30) p2 = 30; ++ sdio_pro_time = p2 ; ++ } else if (p1 == 0) { ++ /* todo */ ++ sdio_pro_enable = 0; ++ } ++ } ++ ++ return count; ++} ++ ++static int msdc_debug_show(struct inode *inode, struct file *file) ++{ ++ return single_open(file, msdc_debug_proc_read, NULL); ++} ++ ++static const struct file_operations msdc_debug_fops = { ++ .owner = THIS_MODULE, ++ .open = msdc_debug_show, ++ .read = seq_read, ++ .write = msdc_debug_proc_write, ++ .llseek = seq_lseek, ++ .release = single_release, ++}; ++ ++int msdc_debug_proc_init(void) ++{ ++ struct proc_dir_entry *de = proc_create("msdc_debug", 0667, NULL, &msdc_debug_fops); ++ ++ if (!de || IS_ERR(de)) ++ printk("!! Create MSDC debug PROC fail !!\n"); ++ ++ return 0 ; ++} ++EXPORT_SYMBOL_GPL(msdc_debug_proc_init); ++#endif +diff --git a/drivers/mmc/host/mtk-mmc/dbg.h b/drivers/mmc/host/mtk-mmc/dbg.h +new file mode 100644 +index 0000000..e58c431 +--- /dev/null ++++ b/drivers/mmc/host/mtk-mmc/dbg.h +@@ -0,0 +1,156 @@ ++/* Copyright Statement: ++ * ++ * This software/firmware and related documentation ("MediaTek Software") are ++ * protected under relevant copyright laws. The information contained herein ++ * is confidential and proprietary to MediaTek Inc. and/or its licensors. ++ * Without the prior written permission of MediaTek inc. and/or its licensors, ++ * any reproduction, modification, use or disclosure of MediaTek Software, ++ * and information contained herein, in whole or in part, shall be strictly prohibited. ++ * ++ * MediaTek Inc. (C) 2010. All rights reserved. ++ * ++ * BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES ++ * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE") ++ * RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER ON ++ * AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES, ++ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF ++ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT. ++ * NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE ++ * SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR ++ * SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES TO LOOK ONLY TO SUCH ++ * THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. RECEIVER EXPRESSLY ACKNOWLEDGES ++ * THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES ++ * CONTAINED IN MEDIATEK SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK ++ * SOFTWARE RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR ++ * STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND ++ * CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE, ++ * AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE, ++ * OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY RECEIVER TO ++ * MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE. ++ * ++ * The following software/firmware and/or related documentation ("MediaTek Software") ++ * have been modified by MediaTek Inc. All revisions are subject to any receiver's ++ * applicable license agreements with MediaTek Inc. ++ */ ++#ifndef __MT_MSDC_DEUBG__ ++#define __MT_MSDC_DEUBG__ ++ ++//========================== ++extern u32 sdio_pro_enable; ++/* for a type command, e.g. CMD53, 2 blocks */ ++struct cmd_profile { ++ u32 max_tc; /* Max tick count */ ++ u32 min_tc; ++ u32 tot_tc; /* total tick count */ ++ u32 tot_bytes; ++ u32 count; /* the counts of the command */ ++}; ++ ++/* dump when total_tc and total_bytes */ ++struct sdio_profile { ++ u32 total_tc; /* total tick count of CMD52 and CMD53 */ ++ u32 total_tx_bytes; /* total bytes of CMD53 Tx */ ++ u32 total_rx_bytes; /* total bytes of CMD53 Rx */ ++ ++ /*CMD52*/ ++ struct cmd_profile cmd52_tx; ++ struct cmd_profile cmd52_rx; ++ ++ /*CMD53 in byte unit */ ++ struct cmd_profile cmd53_tx_byte[512]; ++ struct cmd_profile cmd53_rx_byte[512]; ++ ++ /*CMD53 in block unit */ ++ struct cmd_profile cmd53_tx_blk[100]; ++ struct cmd_profile cmd53_rx_blk[100]; ++}; ++ ++//========================== ++typedef enum { ++ SD_TOOL_ZONE = 0, ++ SD_TOOL_DMA_SIZE = 1, ++ SD_TOOL_PM_ENABLE = 2, ++ SD_TOOL_SDIO_PROFILE = 3, ++} msdc_dbg; ++ ++typedef enum { ++ MODE_PIO = 0, ++ MODE_DMA = 1, ++ MODE_SIZE_DEP = 2, ++} msdc_mode; ++extern msdc_mode drv_mode[4]; ++extern u32 dma_size[4]; ++ ++/* Debug message event */ ++#define DBG_EVT_NONE (0) /* No event */ ++#define DBG_EVT_DMA (1 << 0) /* DMA related event */ ++#define DBG_EVT_CMD (1 << 1) /* MSDC CMD related event */ ++#define DBG_EVT_RSP (1 << 2) /* MSDC CMD RSP related event */ ++#define DBG_EVT_INT (1 << 3) /* MSDC INT event */ ++#define DBG_EVT_CFG (1 << 4) /* MSDC CFG event */ ++#define DBG_EVT_FUC (1 << 5) /* Function event */ ++#define DBG_EVT_OPS (1 << 6) /* Read/Write operation event */ ++#define DBG_EVT_FIO (1 << 7) /* FIFO operation event */ ++#define DBG_EVT_WRN (1 << 8) /* Warning event */ ++#define DBG_EVT_PWR (1 << 9) /* Power event */ ++#define DBG_EVT_ALL (0xffffffff) ++ ++#define DBG_EVT_MASK (DBG_EVT_ALL) ++ ++extern unsigned int sd_debug_zone[4]; ++#define TAG "msdc" ++#if 0 /* +++ chhung */ ++#define BUG_ON(x) \ ++do { \ ++ if (x) { \ ++ printk("[BUG] %s LINE:%d FILE:%s\n", #x, __LINE__, __FILE__); \ ++ while(1); \ ++ } \ ++}while(0) ++#endif /* end of +++ */ ++ ++#define N_MSG(evt, fmt, args...) ++/* ++do { \ ++ if ((DBG_EVT_##evt) & sd_debug_zone[host->id]) { \ ++ printk(KERN_ERR TAG"%d -> "fmt" <- %s() : L<%d> PID<%s><0x%x>\n", \ ++ host->id, ##args , __FUNCTION__, __LINE__, current->comm, current->pid); \ ++ } \ ++} while(0) ++*/ ++ ++#define ERR_MSG(fmt, args...) \ ++do { \ ++ printk(KERN_ERR TAG"%d -> "fmt" <- %s() : L<%d> PID<%s><0x%x>\n", \ ++ host->id, ##args , __FUNCTION__, __LINE__, current->comm, current->pid); \ ++} while(0); ++ ++#if 1 ++//defined CONFIG_MTK_MMC_CD_POLL ++#define INIT_MSG(fmt, args...) ++#define IRQ_MSG(fmt, args...) ++#else ++#define INIT_MSG(fmt, args...) \ ++do { \ ++ printk(KERN_ERR TAG"%d -> "fmt" <- %s() : L<%d> PID<%s><0x%x>\n", \ ++ host->id, ##args , __FUNCTION__, __LINE__, current->comm, current->pid); \ ++} while(0); ++ ++/* PID in ISR in not corrent */ ++#define IRQ_MSG(fmt, args...) \ ++do { \ ++ printk(KERN_ERR TAG"%d -> "fmt" <- %s() : L<%d>\n", \ ++ host->id, ##args , __FUNCTION__, __LINE__); \ ++} while(0); ++#endif ++ ++int msdc_debug_proc_init(void); ++ ++#if 0 /* --- chhung */ ++void msdc_init_gpt(void); ++extern void GPT_GetCounter64(UINT32 *cntL32, UINT32 *cntH32); ++#endif /* end of --- */ ++u32 msdc_time_calc(u32 old_L32, u32 old_H32, u32 new_L32, u32 new_H32); ++void msdc_performance(u32 opcode, u32 sizes, u32 bRx, u32 ticks); ++ ++#endif +diff --git a/drivers/mmc/host/mtk-mmc/mt6575_sd.h b/drivers/mmc/host/mtk-mmc/mt6575_sd.h +new file mode 100644 +index 0000000..e90c4f1 +--- /dev/null ++++ b/drivers/mmc/host/mtk-mmc/mt6575_sd.h +@@ -0,0 +1,1001 @@ ++/* Copyright Statement: ++ * ++ * This software/firmware and related documentation ("MediaTek Software") are ++ * protected under relevant copyright laws. The information contained herein ++ * is confidential and proprietary to MediaTek Inc. and/or its licensors. ++ * Without the prior written permission of MediaTek inc. and/or its licensors, ++ * any reproduction, modification, use or disclosure of MediaTek Software, ++ * and information contained herein, in whole or in part, shall be strictly prohibited. ++ */ ++/* MediaTek Inc. (C) 2010. All rights reserved. ++ * ++ * BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES ++ * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE") ++ * RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER ON ++ * AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES, ++ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF ++ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT. ++ * NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE ++ * SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR ++ * SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES TO LOOK ONLY TO SUCH ++ * THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. RECEIVER EXPRESSLY ACKNOWLEDGES ++ * THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES ++ * CONTAINED IN MEDIATEK SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK ++ * SOFTWARE RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR ++ * STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND ++ * CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE, ++ * AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE, ++ * OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY RECEIVER TO ++ * MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE. ++ * ++ * The following software/firmware and/or related documentation ("MediaTek Software") ++ * have been modified by MediaTek Inc. All revisions are subject to any receiver's ++ * applicable license agreements with MediaTek Inc. ++ */ ++ ++#ifndef MT6575_SD_H ++#define MT6575_SD_H ++ ++#include <linux/bitops.h> ++#include <linux/mmc/host.h> ++ ++// #include <mach/mt6575_reg_base.h> /* --- by chhung */ ++ ++/*--------------------------------------------------------------------------*/ ++/* Common Macro */ ++/*--------------------------------------------------------------------------*/ ++#define REG_ADDR(x) ((volatile u32*)(base + OFFSET_##x)) ++ ++/*--------------------------------------------------------------------------*/ ++/* Common Definition */ ++/*--------------------------------------------------------------------------*/ ++#define MSDC_FIFO_SZ (128) ++#define MSDC_FIFO_THD (64) // (128) ++#define MSDC_NUM (4) ++ ++#define MSDC_MS (0) ++#define MSDC_SDMMC (1) ++ ++#define MSDC_MODE_UNKNOWN (0) ++#define MSDC_MODE_PIO (1) ++#define MSDC_MODE_DMA_BASIC (2) ++#define MSDC_MODE_DMA_DESC (3) ++#define MSDC_MODE_DMA_ENHANCED (4) ++#define MSDC_MODE_MMC_STREAM (5) ++ ++#define MSDC_BUS_1BITS (0) ++#define MSDC_BUS_4BITS (1) ++#define MSDC_BUS_8BITS (2) ++ ++#define MSDC_BRUST_8B (3) ++#define MSDC_BRUST_16B (4) ++#define MSDC_BRUST_32B (5) ++#define MSDC_BRUST_64B (6) ++ ++#define MSDC_PIN_PULL_NONE (0) ++#define MSDC_PIN_PULL_DOWN (1) ++#define MSDC_PIN_PULL_UP (2) ++#define MSDC_PIN_KEEP (3) ++ ++#define MSDC_MAX_SCLK (48000000) /* +/- by chhung */ ++#define MSDC_MIN_SCLK (260000) ++ ++#define MSDC_AUTOCMD12 (0x0001) ++#define MSDC_AUTOCMD23 (0x0002) ++#define MSDC_AUTOCMD19 (0x0003) ++ ++#define MSDC_EMMC_BOOTMODE0 (0) /* Pull low CMD mode */ ++#define MSDC_EMMC_BOOTMODE1 (1) /* Reset CMD mode */ ++ ++enum { ++ RESP_NONE = 0, ++ RESP_R1, ++ RESP_R2, ++ RESP_R3, ++ RESP_R4, ++ RESP_R5, ++ RESP_R6, ++ RESP_R7, ++ RESP_R1B ++}; ++ ++/*--------------------------------------------------------------------------*/ ++/* Register Offset */ ++/*--------------------------------------------------------------------------*/ ++#define OFFSET_MSDC_CFG (0x0) ++#define OFFSET_MSDC_IOCON (0x04) ++#define OFFSET_MSDC_PS (0x08) ++#define OFFSET_MSDC_INT (0x0c) ++#define OFFSET_MSDC_INTEN (0x10) ++#define OFFSET_MSDC_FIFOCS (0x14) ++#define OFFSET_MSDC_TXDATA (0x18) ++#define OFFSET_MSDC_RXDATA (0x1c) ++#define OFFSET_SDC_CFG (0x30) ++#define OFFSET_SDC_CMD (0x34) ++#define OFFSET_SDC_ARG (0x38) ++#define OFFSET_SDC_STS (0x3c) ++#define OFFSET_SDC_RESP0 (0x40) ++#define OFFSET_SDC_RESP1 (0x44) ++#define OFFSET_SDC_RESP2 (0x48) ++#define OFFSET_SDC_RESP3 (0x4c) ++#define OFFSET_SDC_BLK_NUM (0x50) ++#define OFFSET_SDC_CSTS (0x58) ++#define OFFSET_SDC_CSTS_EN (0x5c) ++#define OFFSET_SDC_DCRC_STS (0x60) ++#define OFFSET_EMMC_CFG0 (0x70) ++#define OFFSET_EMMC_CFG1 (0x74) ++#define OFFSET_EMMC_STS (0x78) ++#define OFFSET_EMMC_IOCON (0x7c) ++#define OFFSET_SDC_ACMD_RESP (0x80) ++#define OFFSET_SDC_ACMD19_TRG (0x84) ++#define OFFSET_SDC_ACMD19_STS (0x88) ++#define OFFSET_MSDC_DMA_SA (0x90) ++#define OFFSET_MSDC_DMA_CA (0x94) ++#define OFFSET_MSDC_DMA_CTRL (0x98) ++#define OFFSET_MSDC_DMA_CFG (0x9c) ++#define OFFSET_MSDC_DBG_SEL (0xa0) ++#define OFFSET_MSDC_DBG_OUT (0xa4) ++#define OFFSET_MSDC_PATCH_BIT (0xb0) ++#define OFFSET_MSDC_PATCH_BIT1 (0xb4) ++#define OFFSET_MSDC_PAD_CTL0 (0xe0) ++#define OFFSET_MSDC_PAD_CTL1 (0xe4) ++#define OFFSET_MSDC_PAD_CTL2 (0xe8) ++#define OFFSET_MSDC_PAD_TUNE (0xec) ++#define OFFSET_MSDC_DAT_RDDLY0 (0xf0) ++#define OFFSET_MSDC_DAT_RDDLY1 (0xf4) ++#define OFFSET_MSDC_HW_DBG (0xf8) ++#define OFFSET_MSDC_VERSION (0x100) ++#define OFFSET_MSDC_ECO_VER (0x104) ++ ++/*--------------------------------------------------------------------------*/ ++/* Register Address */ ++/*--------------------------------------------------------------------------*/ ++ ++/* common register */ ++#define MSDC_CFG REG_ADDR(MSDC_CFG) ++#define MSDC_IOCON REG_ADDR(MSDC_IOCON) ++#define MSDC_PS REG_ADDR(MSDC_PS) ++#define MSDC_INT REG_ADDR(MSDC_INT) ++#define MSDC_INTEN REG_ADDR(MSDC_INTEN) ++#define MSDC_FIFOCS REG_ADDR(MSDC_FIFOCS) ++#define MSDC_TXDATA REG_ADDR(MSDC_TXDATA) ++#define MSDC_RXDATA REG_ADDR(MSDC_RXDATA) ++#define MSDC_PATCH_BIT0 REG_ADDR(MSDC_PATCH_BIT) ++ ++/* sdmmc register */ ++#define SDC_CFG REG_ADDR(SDC_CFG) ++#define SDC_CMD REG_ADDR(SDC_CMD) ++#define SDC_ARG REG_ADDR(SDC_ARG) ++#define SDC_STS REG_ADDR(SDC_STS) ++#define SDC_RESP0 REG_ADDR(SDC_RESP0) ++#define SDC_RESP1 REG_ADDR(SDC_RESP1) ++#define SDC_RESP2 REG_ADDR(SDC_RESP2) ++#define SDC_RESP3 REG_ADDR(SDC_RESP3) ++#define SDC_BLK_NUM REG_ADDR(SDC_BLK_NUM) ++#define SDC_CSTS REG_ADDR(SDC_CSTS) ++#define SDC_CSTS_EN REG_ADDR(SDC_CSTS_EN) ++#define SDC_DCRC_STS REG_ADDR(SDC_DCRC_STS) ++ ++/* emmc register*/ ++#define EMMC_CFG0 REG_ADDR(EMMC_CFG0) ++#define EMMC_CFG1 REG_ADDR(EMMC_CFG1) ++#define EMMC_STS REG_ADDR(EMMC_STS) ++#define EMMC_IOCON REG_ADDR(EMMC_IOCON) ++ ++/* auto command register */ ++#define SDC_ACMD_RESP REG_ADDR(SDC_ACMD_RESP) ++#define SDC_ACMD19_TRG REG_ADDR(SDC_ACMD19_TRG) ++#define SDC_ACMD19_STS REG_ADDR(SDC_ACMD19_STS) ++ ++/* dma register */ ++#define MSDC_DMA_SA REG_ADDR(MSDC_DMA_SA) ++#define MSDC_DMA_CA REG_ADDR(MSDC_DMA_CA) ++#define MSDC_DMA_CTRL REG_ADDR(MSDC_DMA_CTRL) ++#define MSDC_DMA_CFG REG_ADDR(MSDC_DMA_CFG) ++ ++/* pad ctrl register */ ++#define MSDC_PAD_CTL0 REG_ADDR(MSDC_PAD_CTL0) ++#define MSDC_PAD_CTL1 REG_ADDR(MSDC_PAD_CTL1) ++#define MSDC_PAD_CTL2 REG_ADDR(MSDC_PAD_CTL2) ++ ++/* data read delay */ ++#define MSDC_DAT_RDDLY0 REG_ADDR(MSDC_DAT_RDDLY0) ++#define MSDC_DAT_RDDLY1 REG_ADDR(MSDC_DAT_RDDLY1) ++ ++/* debug register */ ++#define MSDC_DBG_SEL REG_ADDR(MSDC_DBG_SEL) ++#define MSDC_DBG_OUT REG_ADDR(MSDC_DBG_OUT) ++ ++/* misc register */ ++#define MSDC_PATCH_BIT REG_ADDR(MSDC_PATCH_BIT) ++#define MSDC_PATCH_BIT1 REG_ADDR(MSDC_PATCH_BIT1) ++#define MSDC_PAD_TUNE REG_ADDR(MSDC_PAD_TUNE) ++#define MSDC_HW_DBG REG_ADDR(MSDC_HW_DBG) ++#define MSDC_VERSION REG_ADDR(MSDC_VERSION) ++#define MSDC_ECO_VER REG_ADDR(MSDC_ECO_VER) /* ECO Version */ ++ ++/*--------------------------------------------------------------------------*/ ++/* Register Mask */ ++/*--------------------------------------------------------------------------*/ ++ ++/* MSDC_CFG mask */ ++#define MSDC_CFG_MODE (0x1 << 0) /* RW */ ++#define MSDC_CFG_CKPDN (0x1 << 1) /* RW */ ++#define MSDC_CFG_RST (0x1 << 2) /* RW */ ++#define MSDC_CFG_PIO (0x1 << 3) /* RW */ ++#define MSDC_CFG_CKDRVEN (0x1 << 4) /* RW */ ++#define MSDC_CFG_BV18SDT (0x1 << 5) /* RW */ ++#define MSDC_CFG_BV18PSS (0x1 << 6) /* R */ ++#define MSDC_CFG_CKSTB (0x1 << 7) /* R */ ++#define MSDC_CFG_CKDIV (0xff << 8) /* RW */ ++#define MSDC_CFG_CKMOD (0x3 << 16) /* RW */ ++ ++/* MSDC_IOCON mask */ ++#define MSDC_IOCON_SDR104CKS (0x1 << 0) /* RW */ ++#define MSDC_IOCON_RSPL (0x1 << 1) /* RW */ ++#define MSDC_IOCON_DSPL (0x1 << 2) /* RW */ ++#define MSDC_IOCON_DDLSEL (0x1 << 3) /* RW */ ++#define MSDC_IOCON_DDR50CKD (0x1 << 4) /* RW */ ++#define MSDC_IOCON_DSPLSEL (0x1 << 5) /* RW */ ++#define MSDC_IOCON_D0SPL (0x1 << 16) /* RW */ ++#define MSDC_IOCON_D1SPL (0x1 << 17) /* RW */ ++#define MSDC_IOCON_D2SPL (0x1 << 18) /* RW */ ++#define MSDC_IOCON_D3SPL (0x1 << 19) /* RW */ ++#define MSDC_IOCON_D4SPL (0x1 << 20) /* RW */ ++#define MSDC_IOCON_D5SPL (0x1 << 21) /* RW */ ++#define MSDC_IOCON_D6SPL (0x1 << 22) /* RW */ ++#define MSDC_IOCON_D7SPL (0x1 << 23) /* RW */ ++#define MSDC_IOCON_RISCSZ (0x3 << 24) /* RW */ ++ ++/* MSDC_PS mask */ ++#define MSDC_PS_CDEN (0x1 << 0) /* RW */ ++#define MSDC_PS_CDSTS (0x1 << 1) /* R */ ++#define MSDC_PS_CDDEBOUNCE (0xf << 12) /* RW */ ++#define MSDC_PS_DAT (0xff << 16) /* R */ ++#define MSDC_PS_CMD (0x1 << 24) /* R */ ++#define MSDC_PS_WP (0x1UL<< 31) /* R */ ++ ++/* MSDC_INT mask */ ++#define MSDC_INT_MMCIRQ (0x1 << 0) /* W1C */ ++#define MSDC_INT_CDSC (0x1 << 1) /* W1C */ ++#define MSDC_INT_ACMDRDY (0x1 << 3) /* W1C */ ++#define MSDC_INT_ACMDTMO (0x1 << 4) /* W1C */ ++#define MSDC_INT_ACMDCRCERR (0x1 << 5) /* W1C */ ++#define MSDC_INT_DMAQ_EMPTY (0x1 << 6) /* W1C */ ++#define MSDC_INT_SDIOIRQ (0x1 << 7) /* W1C */ ++#define MSDC_INT_CMDRDY (0x1 << 8) /* W1C */ ++#define MSDC_INT_CMDTMO (0x1 << 9) /* W1C */ ++#define MSDC_INT_RSPCRCERR (0x1 << 10) /* W1C */ ++#define MSDC_INT_CSTA (0x1 << 11) /* R */ ++#define MSDC_INT_XFER_COMPL (0x1 << 12) /* W1C */ ++#define MSDC_INT_DXFER_DONE (0x1 << 13) /* W1C */ ++#define MSDC_INT_DATTMO (0x1 << 14) /* W1C */ ++#define MSDC_INT_DATCRCERR (0x1 << 15) /* W1C */ ++#define MSDC_INT_ACMD19_DONE (0x1 << 16) /* W1C */ ++ ++/* MSDC_INTEN mask */ ++#define MSDC_INTEN_MMCIRQ (0x1 << 0) /* RW */ ++#define MSDC_INTEN_CDSC (0x1 << 1) /* RW */ ++#define MSDC_INTEN_ACMDRDY (0x1 << 3) /* RW */ ++#define MSDC_INTEN_ACMDTMO (0x1 << 4) /* RW */ ++#define MSDC_INTEN_ACMDCRCERR (0x1 << 5) /* RW */ ++#define MSDC_INTEN_DMAQ_EMPTY (0x1 << 6) /* RW */ ++#define MSDC_INTEN_SDIOIRQ (0x1 << 7) /* RW */ ++#define MSDC_INTEN_CMDRDY (0x1 << 8) /* RW */ ++#define MSDC_INTEN_CMDTMO (0x1 << 9) /* RW */ ++#define MSDC_INTEN_RSPCRCERR (0x1 << 10) /* RW */ ++#define MSDC_INTEN_CSTA (0x1 << 11) /* RW */ ++#define MSDC_INTEN_XFER_COMPL (0x1 << 12) /* RW */ ++#define MSDC_INTEN_DXFER_DONE (0x1 << 13) /* RW */ ++#define MSDC_INTEN_DATTMO (0x1 << 14) /* RW */ ++#define MSDC_INTEN_DATCRCERR (0x1 << 15) /* RW */ ++#define MSDC_INTEN_ACMD19_DONE (0x1 << 16) /* RW */ ++ ++/* MSDC_FIFOCS mask */ ++#define MSDC_FIFOCS_RXCNT (0xff << 0) /* R */ ++#define MSDC_FIFOCS_TXCNT (0xff << 16) /* R */ ++#define MSDC_FIFOCS_CLR (0x1UL<< 31) /* RW */ ++ ++/* SDC_CFG mask */ ++#define SDC_CFG_SDIOINTWKUP (0x1 << 0) /* RW */ ++#define SDC_CFG_INSWKUP (0x1 << 1) /* RW */ ++#define SDC_CFG_BUSWIDTH (0x3 << 16) /* RW */ ++#define SDC_CFG_SDIO (0x1 << 19) /* RW */ ++#define SDC_CFG_SDIOIDE (0x1 << 20) /* RW */ ++#define SDC_CFG_INTATGAP (0x1 << 21) /* RW */ ++#define SDC_CFG_DTOC (0xffUL << 24) /* RW */ ++ ++/* SDC_CMD mask */ ++#define SDC_CMD_OPC (0x3f << 0) /* RW */ ++#define SDC_CMD_BRK (0x1 << 6) /* RW */ ++#define SDC_CMD_RSPTYP (0x7 << 7) /* RW */ ++#define SDC_CMD_DTYP (0x3 << 11) /* RW */ ++#define SDC_CMD_DTYP (0x3 << 11) /* RW */ ++#define SDC_CMD_RW (0x1 << 13) /* RW */ ++#define SDC_CMD_STOP (0x1 << 14) /* RW */ ++#define SDC_CMD_GOIRQ (0x1 << 15) /* RW */ ++#define SDC_CMD_BLKLEN (0xfff<< 16) /* RW */ ++#define SDC_CMD_AUTOCMD (0x3 << 28) /* RW */ ++#define SDC_CMD_VOLSWTH (0x1 << 30) /* RW */ ++ ++/* SDC_STS mask */ ++#define SDC_STS_SDCBUSY (0x1 << 0) /* RW */ ++#define SDC_STS_CMDBUSY (0x1 << 1) /* RW */ ++#define SDC_STS_SWR_COMPL (0x1 << 31) /* RW */ ++ ++/* SDC_DCRC_STS mask */ ++#define SDC_DCRC_STS_NEG (0xf << 8) /* RO */ ++#define SDC_DCRC_STS_POS (0xff << 0) /* RO */ ++ ++/* EMMC_CFG0 mask */ ++#define EMMC_CFG0_BOOTSTART (0x1 << 0) /* W */ ++#define EMMC_CFG0_BOOTSTOP (0x1 << 1) /* W */ ++#define EMMC_CFG0_BOOTMODE (0x1 << 2) /* RW */ ++#define EMMC_CFG0_BOOTACKDIS (0x1 << 3) /* RW */ ++#define EMMC_CFG0_BOOTWDLY (0x7 << 12) /* RW */ ++#define EMMC_CFG0_BOOTSUPP (0x1 << 15) /* RW */ ++ ++/* EMMC_CFG1 mask */ ++#define EMMC_CFG1_BOOTDATTMC (0xfffff << 0) /* RW */ ++#define EMMC_CFG1_BOOTACKTMC (0xfffUL << 20) /* RW */ ++ ++/* EMMC_STS mask */ ++#define EMMC_STS_BOOTCRCERR (0x1 << 0) /* W1C */ ++#define EMMC_STS_BOOTACKERR (0x1 << 1) /* W1C */ ++#define EMMC_STS_BOOTDATTMO (0x1 << 2) /* W1C */ ++#define EMMC_STS_BOOTACKTMO (0x1 << 3) /* W1C */ ++#define EMMC_STS_BOOTUPSTATE (0x1 << 4) /* R */ ++#define EMMC_STS_BOOTACKRCV (0x1 << 5) /* W1C */ ++#define EMMC_STS_BOOTDATRCV (0x1 << 6) /* R */ ++ ++/* EMMC_IOCON mask */ ++#define EMMC_IOCON_BOOTRST (0x1 << 0) /* RW */ ++ ++/* SDC_ACMD19_TRG mask */ ++#define SDC_ACMD19_TRG_TUNESEL (0xf << 0) /* RW */ ++ ++/* MSDC_DMA_CTRL mask */ ++#define MSDC_DMA_CTRL_START (0x1 << 0) /* W */ ++#define MSDC_DMA_CTRL_STOP (0x1 << 1) /* W */ ++#define MSDC_DMA_CTRL_RESUME (0x1 << 2) /* W */ ++#define MSDC_DMA_CTRL_MODE (0x1 << 8) /* RW */ ++#define MSDC_DMA_CTRL_LASTBUF (0x1 << 10) /* RW */ ++#define MSDC_DMA_CTRL_BRUSTSZ (0x7 << 12) /* RW */ ++#define MSDC_DMA_CTRL_XFERSZ (0xffffUL << 16)/* RW */ ++ ++/* MSDC_DMA_CFG mask */ ++#define MSDC_DMA_CFG_STS (0x1 << 0) /* R */ ++#define MSDC_DMA_CFG_DECSEN (0x1 << 1) /* RW */ ++#define MSDC_DMA_CFG_BDCSERR (0x1 << 4) /* R */ ++#define MSDC_DMA_CFG_GPDCSERR (0x1 << 5) /* R */ ++ ++/* MSDC_PATCH_BIT mask */ ++#define MSDC_PATCH_BIT_WFLSMODE (0x1 << 0) /* RW */ ++#define MSDC_PATCH_BIT_ODDSUPP (0x1 << 1) /* RW */ ++#define MSDC_PATCH_BIT_CKGEN_CK (0x1 << 6) /* E2: Fixed to 1 */ ++#define MSDC_PATCH_BIT_IODSSEL (0x1 << 16) /* RW */ ++#define MSDC_PATCH_BIT_IOINTSEL (0x1 << 17) /* RW */ ++#define MSDC_PATCH_BIT_BUSYDLY (0xf << 18) /* RW */ ++#define MSDC_PATCH_BIT_WDOD (0xf << 22) /* RW */ ++#define MSDC_PATCH_BIT_IDRTSEL (0x1 << 26) /* RW */ ++#define MSDC_PATCH_BIT_CMDFSEL (0x1 << 27) /* RW */ ++#define MSDC_PATCH_BIT_INTDLSEL (0x1 << 28) /* RW */ ++#define MSDC_PATCH_BIT_SPCPUSH (0x1 << 29) /* RW */ ++#define MSDC_PATCH_BIT_DECRCTMO (0x1 << 30) /* RW */ ++ ++/* MSDC_PATCH_BIT1 mask */ ++#define MSDC_PATCH_BIT1_WRDAT_CRCS (0x7 << 3) ++#define MSDC_PATCH_BIT1_CMD_RSP (0x7 << 0) ++ ++/* MSDC_PAD_CTL0 mask */ ++#define MSDC_PAD_CTL0_CLKDRVN (0x7 << 0) /* RW */ ++#define MSDC_PAD_CTL0_CLKDRVP (0x7 << 4) /* RW */ ++#define MSDC_PAD_CTL0_CLKSR (0x1 << 8) /* RW */ ++#define MSDC_PAD_CTL0_CLKPD (0x1 << 16) /* RW */ ++#define MSDC_PAD_CTL0_CLKPU (0x1 << 17) /* RW */ ++#define MSDC_PAD_CTL0_CLKSMT (0x1 << 18) /* RW */ ++#define MSDC_PAD_CTL0_CLKIES (0x1 << 19) /* RW */ ++#define MSDC_PAD_CTL0_CLKTDSEL (0xf << 20) /* RW */ ++#define MSDC_PAD_CTL0_CLKRDSEL (0xffUL<< 24) /* RW */ ++ ++/* MSDC_PAD_CTL1 mask */ ++#define MSDC_PAD_CTL1_CMDDRVN (0x7 << 0) /* RW */ ++#define MSDC_PAD_CTL1_CMDDRVP (0x7 << 4) /* RW */ ++#define MSDC_PAD_CTL1_CMDSR (0x1 << 8) /* RW */ ++#define MSDC_PAD_CTL1_CMDPD (0x1 << 16) /* RW */ ++#define MSDC_PAD_CTL1_CMDPU (0x1 << 17) /* RW */ ++#define MSDC_PAD_CTL1_CMDSMT (0x1 << 18) /* RW */ ++#define MSDC_PAD_CTL1_CMDIES (0x1 << 19) /* RW */ ++#define MSDC_PAD_CTL1_CMDTDSEL (0xf << 20) /* RW */ ++#define MSDC_PAD_CTL1_CMDRDSEL (0xffUL<< 24) /* RW */ ++ ++/* MSDC_PAD_CTL2 mask */ ++#define MSDC_PAD_CTL2_DATDRVN (0x7 << 0) /* RW */ ++#define MSDC_PAD_CTL2_DATDRVP (0x7 << 4) /* RW */ ++#define MSDC_PAD_CTL2_DATSR (0x1 << 8) /* RW */ ++#define MSDC_PAD_CTL2_DATPD (0x1 << 16) /* RW */ ++#define MSDC_PAD_CTL2_DATPU (0x1 << 17) /* RW */ ++#define MSDC_PAD_CTL2_DATIES (0x1 << 19) /* RW */ ++#define MSDC_PAD_CTL2_DATSMT (0x1 << 18) /* RW */ ++#define MSDC_PAD_CTL2_DATTDSEL (0xf << 20) /* RW */ ++#define MSDC_PAD_CTL2_DATRDSEL (0xffUL<< 24) /* RW */ ++ ++/* MSDC_PAD_TUNE mask */ ++#define MSDC_PAD_TUNE_DATWRDLY (0x1F << 0) /* RW */ ++#define MSDC_PAD_TUNE_DATRRDLY (0x1F << 8) /* RW */ ++#define MSDC_PAD_TUNE_CMDRDLY (0x1F << 16) /* RW */ ++#define MSDC_PAD_TUNE_CMDRRDLY (0x1FUL << 22) /* RW */ ++#define MSDC_PAD_TUNE_CLKTXDLY (0x1FUL << 27) /* RW */ ++ ++/* MSDC_DAT_RDDLY0/1 mask */ ++#define MSDC_DAT_RDDLY0_D0 (0x1F << 0) /* RW */ ++#define MSDC_DAT_RDDLY0_D1 (0x1F << 8) /* RW */ ++#define MSDC_DAT_RDDLY0_D2 (0x1F << 16) /* RW */ ++#define MSDC_DAT_RDDLY0_D3 (0x1F << 24) /* RW */ ++ ++#define MSDC_DAT_RDDLY1_D4 (0x1F << 0) /* RW */ ++#define MSDC_DAT_RDDLY1_D5 (0x1F << 8) /* RW */ ++#define MSDC_DAT_RDDLY1_D6 (0x1F << 16) /* RW */ ++#define MSDC_DAT_RDDLY1_D7 (0x1F << 24) /* RW */ ++ ++#define MSDC_CKGEN_MSDC_DLY_SEL (0x1F<<10) ++#define MSDC_INT_DAT_LATCH_CK_SEL (0x7<<7) ++#define MSDC_CKGEN_MSDC_CK_SEL (0x1<<6) ++#define CARD_READY_FOR_DATA (1<<8) ++#define CARD_CURRENT_STATE(x) ((x&0x00001E00)>>9) ++ ++/*--------------------------------------------------------------------------*/ ++/* Descriptor Structure */ ++/*--------------------------------------------------------------------------*/ ++typedef struct { ++ u32 hwo:1; /* could be changed by hw */ ++ u32 bdp:1; ++ u32 rsv0:6; ++ u32 chksum:8; ++ u32 intr:1; ++ u32 rsv1:15; ++ void *next; ++ void *ptr; ++ u32 buflen:16; ++ u32 extlen:8; ++ u32 rsv2:8; ++ u32 arg; ++ u32 blknum; ++ u32 cmd; ++} gpd_t; ++ ++typedef struct { ++ u32 eol:1; ++ u32 rsv0:7; ++ u32 chksum:8; ++ u32 rsv1:1; ++ u32 blkpad:1; ++ u32 dwpad:1; ++ u32 rsv2:13; ++ void *next; ++ void *ptr; ++ u32 buflen:16; ++ u32 rsv3:16; ++} bd_t; ++ ++/*--------------------------------------------------------------------------*/ ++/* Register Debugging Structure */ ++/*--------------------------------------------------------------------------*/ ++ ++typedef struct { ++ u32 msdc:1; ++ u32 ckpwn:1; ++ u32 rst:1; ++ u32 pio:1; ++ u32 ckdrven:1; ++ u32 start18v:1; ++ u32 pass18v:1; ++ u32 ckstb:1; ++ u32 ckdiv:8; ++ u32 ckmod:2; ++ u32 pad:14; ++} msdc_cfg_reg; ++typedef struct { ++ u32 sdr104cksel:1; ++ u32 rsmpl:1; ++ u32 dsmpl:1; ++ u32 ddlysel:1; ++ u32 ddr50ckd:1; ++ u32 dsplsel:1; ++ u32 pad1:10; ++ u32 d0spl:1; ++ u32 d1spl:1; ++ u32 d2spl:1; ++ u32 d3spl:1; ++ u32 d4spl:1; ++ u32 d5spl:1; ++ u32 d6spl:1; ++ u32 d7spl:1; ++ u32 riscsz:1; ++ u32 pad2:7; ++} msdc_iocon_reg; ++typedef struct { ++ u32 cden:1; ++ u32 cdsts:1; ++ u32 pad1:10; ++ u32 cddebounce:4; ++ u32 dat:8; ++ u32 cmd:1; ++ u32 pad2:6; ++ u32 wp:1; ++} msdc_ps_reg; ++typedef struct { ++ u32 mmcirq:1; ++ u32 cdsc:1; ++ u32 pad1:1; ++ u32 atocmdrdy:1; ++ u32 atocmdtmo:1; ++ u32 atocmdcrc:1; ++ u32 dmaqempty:1; ++ u32 sdioirq:1; ++ u32 cmdrdy:1; ++ u32 cmdtmo:1; ++ u32 rspcrc:1; ++ u32 csta:1; ++ u32 xfercomp:1; ++ u32 dxferdone:1; ++ u32 dattmo:1; ++ u32 datcrc:1; ++ u32 atocmd19done:1; ++ u32 pad2:15; ++} msdc_int_reg; ++typedef struct { ++ u32 mmcirq:1; ++ u32 cdsc:1; ++ u32 pad1:1; ++ u32 atocmdrdy:1; ++ u32 atocmdtmo:1; ++ u32 atocmdcrc:1; ++ u32 dmaqempty:1; ++ u32 sdioirq:1; ++ u32 cmdrdy:1; ++ u32 cmdtmo:1; ++ u32 rspcrc:1; ++ u32 csta:1; ++ u32 xfercomp:1; ++ u32 dxferdone:1; ++ u32 dattmo:1; ++ u32 datcrc:1; ++ u32 atocmd19done:1; ++ u32 pad2:15; ++} msdc_inten_reg; ++typedef struct { ++ u32 rxcnt:8; ++ u32 pad1:8; ++ u32 txcnt:8; ++ u32 pad2:7; ++ u32 clr:1; ++} msdc_fifocs_reg; ++typedef struct { ++ u32 val; ++} msdc_txdat_reg; ++typedef struct { ++ u32 val; ++} msdc_rxdat_reg; ++typedef struct { ++ u32 sdiowkup:1; ++ u32 inswkup:1; ++ u32 pad1:14; ++ u32 buswidth:2; ++ u32 pad2:1; ++ u32 sdio:1; ++ u32 sdioide:1; ++ u32 intblkgap:1; ++ u32 pad4:2; ++ u32 dtoc:8; ++} sdc_cfg_reg; ++typedef struct { ++ u32 cmd:6; ++ u32 brk:1; ++ u32 rsptyp:3; ++ u32 pad1:1; ++ u32 dtype:2; ++ u32 rw:1; ++ u32 stop:1; ++ u32 goirq:1; ++ u32 blklen:12; ++ u32 atocmd:2; ++ u32 volswth:1; ++ u32 pad2:1; ++} sdc_cmd_reg; ++typedef struct { ++ u32 arg; ++} sdc_arg_reg; ++typedef struct { ++ u32 sdcbusy:1; ++ u32 cmdbusy:1; ++ u32 pad:29; ++ u32 swrcmpl:1; ++} sdc_sts_reg; ++typedef struct { ++ u32 val; ++} sdc_resp0_reg; ++typedef struct { ++ u32 val; ++} sdc_resp1_reg; ++typedef struct { ++ u32 val; ++} sdc_resp2_reg; ++typedef struct { ++ u32 val; ++} sdc_resp3_reg; ++typedef struct { ++ u32 num; ++} sdc_blknum_reg; ++typedef struct { ++ u32 sts; ++} sdc_csts_reg; ++typedef struct { ++ u32 sts; ++} sdc_cstsen_reg; ++typedef struct { ++ u32 datcrcsts:8; ++ u32 ddrcrcsts:4; ++ u32 pad:20; ++} sdc_datcrcsts_reg; ++typedef struct { ++ u32 bootstart:1; ++ u32 bootstop:1; ++ u32 bootmode:1; ++ u32 pad1:9; ++ u32 bootwaidly:3; ++ u32 bootsupp:1; ++ u32 pad2:16; ++} emmc_cfg0_reg; ++typedef struct { ++ u32 bootcrctmc:16; ++ u32 pad:4; ++ u32 bootacktmc:12; ++} emmc_cfg1_reg; ++typedef struct { ++ u32 bootcrcerr:1; ++ u32 bootackerr:1; ++ u32 bootdattmo:1; ++ u32 bootacktmo:1; ++ u32 bootupstate:1; ++ u32 bootackrcv:1; ++ u32 bootdatrcv:1; ++ u32 pad:25; ++} emmc_sts_reg; ++typedef struct { ++ u32 bootrst:1; ++ u32 pad:31; ++} emmc_iocon_reg; ++typedef struct { ++ u32 val; ++} msdc_acmd_resp_reg; ++typedef struct { ++ u32 tunesel:4; ++ u32 pad:28; ++} msdc_acmd19_trg_reg; ++typedef struct { ++ u32 val; ++} msdc_acmd19_sts_reg; ++typedef struct { ++ u32 addr; ++} msdc_dma_sa_reg; ++typedef struct { ++ u32 addr; ++} msdc_dma_ca_reg; ++typedef struct { ++ u32 start:1; ++ u32 stop:1; ++ u32 resume:1; ++ u32 pad1:5; ++ u32 mode:1; ++ u32 pad2:1; ++ u32 lastbuf:1; ++ u32 pad3:1; ++ u32 brustsz:3; ++ u32 pad4:1; ++ u32 xfersz:16; ++} msdc_dma_ctrl_reg; ++typedef struct { ++ u32 status:1; ++ u32 decsen:1; ++ u32 pad1:2; ++ u32 bdcsen:1; ++ u32 gpdcsen:1; ++ u32 pad2:26; ++} msdc_dma_cfg_reg; ++typedef struct { ++ u32 sel:16; ++ u32 pad2:16; ++} msdc_dbg_sel_reg; ++typedef struct { ++ u32 val; ++} msdc_dbg_out_reg; ++typedef struct { ++ u32 clkdrvn:3; ++ u32 rsv0:1; ++ u32 clkdrvp:3; ++ u32 rsv1:1; ++ u32 clksr:1; ++ u32 rsv2:7; ++ u32 clkpd:1; ++ u32 clkpu:1; ++ u32 clksmt:1; ++ u32 clkies:1; ++ u32 clktdsel:4; ++ u32 clkrdsel:8; ++} msdc_pad_ctl0_reg; ++typedef struct { ++ u32 cmddrvn:3; ++ u32 rsv0:1; ++ u32 cmddrvp:3; ++ u32 rsv1:1; ++ u32 cmdsr:1; ++ u32 rsv2:7; ++ u32 cmdpd:1; ++ u32 cmdpu:1; ++ u32 cmdsmt:1; ++ u32 cmdies:1; ++ u32 cmdtdsel:4; ++ u32 cmdrdsel:8; ++} msdc_pad_ctl1_reg; ++typedef struct { ++ u32 datdrvn:3; ++ u32 rsv0:1; ++ u32 datdrvp:3; ++ u32 rsv1:1; ++ u32 datsr:1; ++ u32 rsv2:7; ++ u32 datpd:1; ++ u32 datpu:1; ++ u32 datsmt:1; ++ u32 daties:1; ++ u32 dattdsel:4; ++ u32 datrdsel:8; ++} msdc_pad_ctl2_reg; ++typedef struct { ++ u32 wrrxdly:3; ++ u32 pad1:5; ++ u32 rdrxdly:8; ++ u32 pad2:16; ++} msdc_pad_tune_reg; ++typedef struct { ++ u32 dat0:5; ++ u32 rsv0:3; ++ u32 dat1:5; ++ u32 rsv1:3; ++ u32 dat2:5; ++ u32 rsv2:3; ++ u32 dat3:5; ++ u32 rsv3:3; ++} msdc_dat_rddly0; ++typedef struct { ++ u32 dat4:5; ++ u32 rsv4:3; ++ u32 dat5:5; ++ u32 rsv5:3; ++ u32 dat6:5; ++ u32 rsv6:3; ++ u32 dat7:5; ++ u32 rsv7:3; ++} msdc_dat_rddly1; ++typedef struct { ++ u32 dbg0sel:8; ++ u32 dbg1sel:6; ++ u32 pad1:2; ++ u32 dbg2sel:6; ++ u32 pad2:2; ++ u32 dbg3sel:6; ++ u32 pad3:2; ++} msdc_hw_dbg_reg; ++typedef struct { ++ u32 val; ++} msdc_version_reg; ++typedef struct { ++ u32 val; ++} msdc_eco_ver_reg; ++ ++struct msdc_regs { ++ msdc_cfg_reg msdc_cfg; /* base+0x00h */ ++ msdc_iocon_reg msdc_iocon; /* base+0x04h */ ++ msdc_ps_reg msdc_ps; /* base+0x08h */ ++ msdc_int_reg msdc_int; /* base+0x0ch */ ++ msdc_inten_reg msdc_inten; /* base+0x10h */ ++ msdc_fifocs_reg msdc_fifocs; /* base+0x14h */ ++ msdc_txdat_reg msdc_txdat; /* base+0x18h */ ++ msdc_rxdat_reg msdc_rxdat; /* base+0x1ch */ ++ u32 rsv1[4]; ++ sdc_cfg_reg sdc_cfg; /* base+0x30h */ ++ sdc_cmd_reg sdc_cmd; /* base+0x34h */ ++ sdc_arg_reg sdc_arg; /* base+0x38h */ ++ sdc_sts_reg sdc_sts; /* base+0x3ch */ ++ sdc_resp0_reg sdc_resp0; /* base+0x40h */ ++ sdc_resp1_reg sdc_resp1; /* base+0x44h */ ++ sdc_resp2_reg sdc_resp2; /* base+0x48h */ ++ sdc_resp3_reg sdc_resp3; /* base+0x4ch */ ++ sdc_blknum_reg sdc_blknum; /* base+0x50h */ ++ u32 rsv2[1]; ++ sdc_csts_reg sdc_csts; /* base+0x58h */ ++ sdc_cstsen_reg sdc_cstsen; /* base+0x5ch */ ++ sdc_datcrcsts_reg sdc_dcrcsta; /* base+0x60h */ ++ u32 rsv3[3]; ++ emmc_cfg0_reg emmc_cfg0; /* base+0x70h */ ++ emmc_cfg1_reg emmc_cfg1; /* base+0x74h */ ++ emmc_sts_reg emmc_sts; /* base+0x78h */ ++ emmc_iocon_reg emmc_iocon; /* base+0x7ch */ ++ msdc_acmd_resp_reg acmd_resp; /* base+0x80h */ ++ msdc_acmd19_trg_reg acmd19_trg; /* base+0x84h */ ++ msdc_acmd19_sts_reg acmd19_sts; /* base+0x88h */ ++ u32 rsv4[1]; ++ msdc_dma_sa_reg dma_sa; /* base+0x90h */ ++ msdc_dma_ca_reg dma_ca; /* base+0x94h */ ++ msdc_dma_ctrl_reg dma_ctrl; /* base+0x98h */ ++ msdc_dma_cfg_reg dma_cfg; /* base+0x9ch */ ++ msdc_dbg_sel_reg dbg_sel; /* base+0xa0h */ ++ msdc_dbg_out_reg dbg_out; /* base+0xa4h */ ++ u32 rsv5[2]; ++ u32 patch0; /* base+0xb0h */ ++ u32 patch1; /* base+0xb4h */ ++ u32 rsv6[10]; ++ msdc_pad_ctl0_reg pad_ctl0; /* base+0xe0h */ ++ msdc_pad_ctl1_reg pad_ctl1; /* base+0xe4h */ ++ msdc_pad_ctl2_reg pad_ctl2; /* base+0xe8h */ ++ msdc_pad_tune_reg pad_tune; /* base+0xech */ ++ msdc_dat_rddly0 dat_rddly0; /* base+0xf0h */ ++ msdc_dat_rddly1 dat_rddly1; /* base+0xf4h */ ++ msdc_hw_dbg_reg hw_dbg; /* base+0xf8h */ ++ u32 rsv7[1]; ++ msdc_version_reg version; /* base+0x100h */ ++ msdc_eco_ver_reg eco_ver; /* base+0x104h */ ++}; ++ ++struct scatterlist_ex { ++ u32 cmd; ++ u32 arg; ++ u32 sglen; ++ struct scatterlist *sg; ++}; ++ ++#define DMA_FLAG_NONE (0x00000000) ++#define DMA_FLAG_EN_CHKSUM (0x00000001) ++#define DMA_FLAG_PAD_BLOCK (0x00000002) ++#define DMA_FLAG_PAD_DWORD (0x00000004) ++ ++struct msdc_dma { ++ u32 flags; /* flags */ ++ u32 xfersz; /* xfer size in bytes */ ++ u32 sglen; /* size of scatter list */ ++ u32 blklen; /* block size */ ++ struct scatterlist *sg; /* I/O scatter list */ ++ struct scatterlist_ex *esg; /* extended I/O scatter list */ ++ u8 mode; /* dma mode */ ++ u8 burstsz; /* burst size */ ++ u8 intr; /* dma done interrupt */ ++ u8 padding; /* padding */ ++ u32 cmd; /* enhanced mode command */ ++ u32 arg; /* enhanced mode arg */ ++ u32 rsp; /* enhanced mode command response */ ++ u32 autorsp; /* auto command response */ ++ ++ gpd_t *gpd; /* pointer to gpd array */ ++ bd_t *bd; /* pointer to bd array */ ++ dma_addr_t gpd_addr; /* the physical address of gpd array */ ++ dma_addr_t bd_addr; /* the physical address of bd array */ ++ u32 used_gpd; /* the number of used gpd elements */ ++ u32 used_bd; /* the number of used bd elements */ ++}; ++ ++struct msdc_host ++{ ++ struct msdc_hw *hw; ++ ++ struct mmc_host *mmc; /* mmc structure */ ++ struct mmc_command *cmd; ++ struct mmc_data *data; ++ struct mmc_request *mrq; ++ int cmd_rsp; ++ int cmd_rsp_done; ++ int cmd_r1b_done; ++ ++ int error; ++ spinlock_t lock; /* mutex */ ++ struct semaphore sem; ++ ++ u32 blksz; /* host block size */ ++ u32 base; /* host base address */ ++ int id; /* host id */ ++ int pwr_ref; /* core power reference count */ ++ ++ u32 xfer_size; /* total transferred size */ ++ ++ struct msdc_dma dma; /* dma channel */ ++ u32 dma_addr; /* dma transfer address */ ++ u32 dma_left_size; /* dma transfer left size */ ++ u32 dma_xfer_size; /* dma transfer size in bytes */ ++ int dma_xfer; /* dma transfer mode */ ++ ++ u32 timeout_ns; /* data timeout ns */ ++ u32 timeout_clks; /* data timeout clks */ ++ ++ atomic_t abort; /* abort transfer */ ++ ++ int irq; /* host interrupt */ ++ ++ struct tasklet_struct card_tasklet; ++#if 0 ++ struct work_struct card_workqueue; ++#else ++ struct delayed_work card_delaywork; ++#endif ++ ++ struct completion cmd_done; ++ struct completion xfer_done; ++ struct pm_message pm_state; ++ ++ u32 mclk; /* mmc subsystem clock */ ++ u32 hclk; /* host clock speed */ ++ u32 sclk; /* SD/MS clock speed */ ++ u8 core_clkon; /* Host core clock on ? */ ++ u8 card_clkon; /* Card clock on ? */ ++ u8 core_power; /* core power */ ++ u8 power_mode; /* host power mode */ ++ u8 card_inserted; /* card inserted ? */ ++ u8 suspend; /* host suspended ? */ ++ u8 reserved; ++ u8 app_cmd; /* for app command */ ++ u32 app_cmd_arg; ++ u64 starttime; ++}; ++ ++static inline unsigned int uffs(unsigned int x) ++{ ++ unsigned int r = 1; ++ ++ if (!x) ++ return 0; ++ if (!(x & 0xffff)) { ++ x >>= 16; ++ r += 16; ++ } ++ if (!(x & 0xff)) { ++ x >>= 8; ++ r += 8; ++ } ++ if (!(x & 0xf)) { ++ x >>= 4; ++ r += 4; ++ } ++ if (!(x & 3)) { ++ x >>= 2; ++ r += 2; ++ } ++ if (!(x & 1)) { ++ x >>= 1; ++ r += 1; ++ } ++ return r; ++} ++#define sdr_read8(reg) __raw_readb(reg) ++#define sdr_read16(reg) __raw_readw(reg) ++#define sdr_read32(reg) __raw_readl(reg) ++#define sdr_write8(reg,val) __raw_writeb(val,reg) ++#define sdr_write16(reg,val) __raw_writew(val,reg) ++#define sdr_write32(reg,val) __raw_writel(val,reg) ++ ++#define sdr_set_bits(reg,bs) ((*(volatile u32*)(reg)) |= (u32)(bs)) ++#define sdr_clr_bits(reg,bs) ((*(volatile u32*)(reg)) &= ~((u32)(bs))) ++ ++#define sdr_set_field(reg,field,val) \ ++ do { \ ++ volatile unsigned int tv = sdr_read32(reg); \ ++ tv &= ~(field); \ ++ tv |= ((val) << (uffs((unsigned int)field) - 1)); \ ++ sdr_write32(reg,tv); \ ++ } while(0) ++#define sdr_get_field(reg,field,val) \ ++ do { \ ++ volatile unsigned int tv = sdr_read32(reg); \ ++ val = ((tv & (field)) >> (uffs((unsigned int)field) - 1)); \ ++ } while(0) ++ ++#endif ++ +diff --git a/drivers/mmc/host/mtk-mmc/sd.c b/drivers/mmc/host/mtk-mmc/sd.c +new file mode 100644 +index 0000000..d240b46 +--- /dev/null ++++ b/drivers/mmc/host/mtk-mmc/sd.c +@@ -0,0 +1,3060 @@ ++/* Copyright Statement: ++ * ++ * This software/firmware and related documentation ("MediaTek Software") are ++ * protected under relevant copyright laws. The information contained herein ++ * is confidential and proprietary to MediaTek Inc. and/or its licensors. ++ * Without the prior written permission of MediaTek inc. and/or its licensors, ++ * any reproduction, modification, use or disclosure of MediaTek Software, ++ * and information contained herein, in whole or in part, shall be strictly prohibited. ++ * ++ * MediaTek Inc. (C) 2010. All rights reserved. ++ * ++ * BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES ++ * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE") ++ * RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER ON ++ * AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES, ++ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF ++ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT. ++ * NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE ++ * SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR ++ * SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES TO LOOK ONLY TO SUCH ++ * THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. RECEIVER EXPRESSLY ACKNOWLEDGES ++ * THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES ++ * CONTAINED IN MEDIATEK SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK ++ * SOFTWARE RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR ++ * STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND ++ * CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE, ++ * AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE, ++ * OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY RECEIVER TO ++ * MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE. ++ * ++ * The following software/firmware and/or related documentation ("MediaTek Software") ++ * have been modified by MediaTek Inc. All revisions are subject to any receiver's ++ * applicable license agreements with MediaTek Inc. ++ */ ++ ++#include <linux/module.h> ++#include <linux/moduleparam.h> ++#include <linux/init.h> ++#include <linux/spinlock.h> ++#include <linux/timer.h> ++#include <linux/ioport.h> ++#include <linux/device.h> ++#include <linux/platform_device.h> ++#include <linux/interrupt.h> ++#include <linux/delay.h> ++#include <linux/blkdev.h> ++#include <linux/slab.h> ++#include <linux/mmc/host.h> ++#include <linux/mmc/card.h> ++#include <linux/mmc/core.h> ++#include <linux/mmc/mmc.h> ++#include <linux/mmc/sd.h> ++#include <linux/mmc/sdio.h> ++#include <linux/dma-mapping.h> ++ ++/* +++ by chhung */ ++#include <linux/types.h> ++#include <linux/kernel.h> ++#include <linux/version.h> ++#include <linux/pm.h> ++#include <linux/of.h> ++ ++#define MSDC_SMPL_FALLING (1) ++#define MSDC_CD_PIN_EN (1 << 0) /* card detection pin is wired */ ++#define MSDC_WP_PIN_EN (1 << 1) /* write protection pin is wired */ ++#define MSDC_REMOVABLE (1 << 5) /* removable slot */ ++#define MSDC_SYS_SUSPEND (1 << 6) /* suspended by system */ ++#define MSDC_HIGHSPEED (1 << 7) ++ ++//#define IRQ_SDC 14 //MT7620 /*FIXME*/ ++#ifdef CONFIG_SOC_MT7621 ++#define RALINK_SYSCTL_BASE 0xbe000000 ++#define RALINK_MSDC_BASE 0xbe130000 ++#else ++#define RALINK_SYSCTL_BASE 0xb0000000 ++#define RALINK_MSDC_BASE 0xb0130000 ++#endif ++#define IRQ_SDC 22 /*FIXME*/ ++ ++#include <asm/dma.h> ++/* end of +++ */ ++ ++ ++#include <asm/mach-ralink/ralink_regs.h> ++ ++#if 0 /* --- by chhung */ ++#include <mach/board.h> ++#include <mach/mt6575_devs.h> ++#include <mach/mt6575_typedefs.h> ++#include <mach/mt6575_clock_manager.h> ++#include <mach/mt6575_pm_ldo.h> ++//#include <mach/mt6575_pll.h> ++//#include <mach/mt6575_gpio.h> ++//#include <mach/mt6575_gpt_sw.h> ++#include <asm/tcm.h> ++// #include <mach/mt6575_gpt.h> ++#endif /* end of --- */ ++ ++#include "mt6575_sd.h" ++#include "dbg.h" ++ ++/* +++ by chhung */ ++#include "board.h" ++/* end of +++ */ ++ ++#if 0 /* --- by chhung */ ++#define isb() __asm__ __volatile__ ("" : : : "memory") ++#define dsb() __asm__ __volatile__ ("mcr p15, 0, %0, c7, c10, 4" \ ++ : : "r" (0) : "memory") ++#define dmb() __asm__ __volatile__ ("" : : : "memory") ++#endif /* end of --- */ ++ ++#define DRV_NAME "mtk-sd" ++ ++#define HOST_MAX_NUM (1) /* +/- by chhung */ ++ ++#if defined (CONFIG_SOC_MT7620) ++#define HOST_MAX_MCLK (48000000) /* +/- by chhung */ ++#elif defined (CONFIG_SOC_MT7621) ++#define HOST_MAX_MCLK (50000000) /* +/- by chhung */ ++#endif ++#define HOST_MIN_MCLK (260000) ++ ++#define HOST_MAX_BLKSZ (2048) ++ ++#define MSDC_OCR_AVAIL (MMC_VDD_28_29 | MMC_VDD_29_30 | MMC_VDD_30_31 | MMC_VDD_31_32 | MMC_VDD_32_33) ++ ++#define GPIO_PULL_DOWN (0) ++#define GPIO_PULL_UP (1) ++ ++#if 0 /* --- by chhung */ ++#define MSDC_CLKSRC_REG (0xf100000C) ++#define PDN_REG (0xF1000010) ++#endif /* end of --- */ ++ ++#define DEFAULT_DEBOUNCE (8) /* 8 cycles */ ++#define DEFAULT_DTOC (40) /* data timeout counter. 65536x40 sclk. */ ++ ++#define CMD_TIMEOUT (HZ/10) /* 100ms */ ++#define DAT_TIMEOUT (HZ/2 * 5) /* 500ms x5 */ ++ ++#define MAX_DMA_CNT (64 * 1024 - 512) /* a single transaction for WIFI may be 50K*/ ++ ++#define MAX_GPD_NUM (1 + 1) /* one null gpd */ ++#define MAX_BD_NUM (1024) ++#define MAX_BD_PER_GPD (MAX_BD_NUM) ++ ++#define MAX_HW_SGMTS (MAX_BD_NUM) ++#define MAX_PHY_SGMTS (MAX_BD_NUM) ++#define MAX_SGMT_SZ (MAX_DMA_CNT) ++#define MAX_REQ_SZ (MAX_SGMT_SZ * 8) ++ ++#ifdef MT6575_SD_DEBUG ++static struct msdc_regs *msdc_reg[HOST_MAX_NUM]; ++#endif ++ ++static int mtk_sw_poll; ++ ++static int cd_active_low = 1; ++ ++//================================= ++#define PERI_MSDC0_PDN (15) ++//#define PERI_MSDC1_PDN (16) ++//#define PERI_MSDC2_PDN (17) ++//#define PERI_MSDC3_PDN (18) ++ ++struct msdc_host *msdc_6575_host[] = {NULL,NULL,NULL,NULL}; ++#if 0 /* --- by chhung */ ++/* gate means clock power down */ ++static int g_clk_gate = 0; ++#define msdc_gate_clock(id) \ ++ do { \ ++ g_clk_gate &= ~(1 << ((id) + PERI_MSDC0_PDN)); \ ++ } while(0) ++/* not like power down register. 1 means clock on. */ ++#define msdc_ungate_clock(id) \ ++ do { \ ++ g_clk_gate |= 1 << ((id) + PERI_MSDC0_PDN); \ ++ } while(0) ++ ++// do we need sync object or not ++void msdc_clk_status(int * status) ++{ ++ *status = g_clk_gate; ++} ++#endif /* end of --- */ ++ ++/* +++ by chhung */ ++struct msdc_hw msdc0_hw = { ++ .clk_src = 0, ++ .cmd_edge = MSDC_SMPL_FALLING, ++ .data_edge = MSDC_SMPL_FALLING, ++ .clk_drv = 4, ++ .cmd_drv = 4, ++ .dat_drv = 4, ++ .data_pins = 4, ++ .data_offset = 0, ++ .flags = MSDC_SYS_SUSPEND | MSDC_WP_PIN_EN | MSDC_CD_PIN_EN | MSDC_REMOVABLE | MSDC_HIGHSPEED, ++// .flags = MSDC_SYS_SUSPEND | MSDC_WP_PIN_EN | MSDC_CD_PIN_EN | MSDC_REMOVABLE, ++}; ++ ++static struct resource mtk_sd_resources[] = { ++ [0] = { ++ .start = RALINK_MSDC_BASE, ++ .end = RALINK_MSDC_BASE+0x3fff, ++ .flags = IORESOURCE_MEM, ++ }, ++ [1] = { ++ .start = IRQ_SDC, /*FIXME*/ ++ .end = IRQ_SDC, /*FIXME*/ ++ .flags = IORESOURCE_IRQ, ++ }, ++}; ++ ++static struct platform_device mtk_sd_device = { ++ .name = "mtk-sd", ++ .id = 0, ++ .num_resources = ARRAY_SIZE(mtk_sd_resources), ++ .resource = mtk_sd_resources, ++}; ++/* end of +++ */ ++ ++static int msdc_rsp[] = { ++ 0, /* RESP_NONE */ ++ 1, /* RESP_R1 */ ++ 2, /* RESP_R2 */ ++ 3, /* RESP_R3 */ ++ 4, /* RESP_R4 */ ++ 1, /* RESP_R5 */ ++ 1, /* RESP_R6 */ ++ 1, /* RESP_R7 */ ++ 7, /* RESP_R1b */ ++}; ++ ++/* For Inhanced DMA */ ++#define msdc_init_gpd_ex(gpd,extlen,cmd,arg,blknum) \ ++ do { \ ++ ((gpd_t*)gpd)->extlen = extlen; \ ++ ((gpd_t*)gpd)->cmd = cmd; \ ++ ((gpd_t*)gpd)->arg = arg; \ ++ ((gpd_t*)gpd)->blknum = blknum; \ ++ }while(0) ++ ++#define msdc_init_bd(bd, blkpad, dwpad, dptr, dlen) \ ++ do { \ ++ BUG_ON(dlen > 0xFFFFUL); \ ++ ((bd_t*)bd)->blkpad = blkpad; \ ++ ((bd_t*)bd)->dwpad = dwpad; \ ++ ((bd_t*)bd)->ptr = (void*)dptr; \ ++ ((bd_t*)bd)->buflen = dlen; \ ++ }while(0) ++ ++#define msdc_txfifocnt() ((sdr_read32(MSDC_FIFOCS) & MSDC_FIFOCS_TXCNT) >> 16) ++#define msdc_rxfifocnt() ((sdr_read32(MSDC_FIFOCS) & MSDC_FIFOCS_RXCNT) >> 0) ++#define msdc_fifo_write32(v) sdr_write32(MSDC_TXDATA, (v)) ++#define msdc_fifo_write8(v) sdr_write8(MSDC_TXDATA, (v)) ++#define msdc_fifo_read32() sdr_read32(MSDC_RXDATA) ++#define msdc_fifo_read8() sdr_read8(MSDC_RXDATA) ++ ++ ++#define msdc_dma_on() sdr_clr_bits(MSDC_CFG, MSDC_CFG_PIO) ++#define msdc_dma_off() sdr_set_bits(MSDC_CFG, MSDC_CFG_PIO) ++ ++#define msdc_retry(expr,retry,cnt) \ ++ do { \ ++ int backup = cnt; \ ++ while (retry) { \ ++ if (!(expr)) break; \ ++ if (cnt-- == 0) { \ ++ retry--; mdelay(1); cnt = backup; \ ++ } \ ++ } \ ++ WARN_ON(retry == 0); \ ++ } while(0) ++ ++#if 0 /* --- by chhung */ ++#define msdc_reset() \ ++ do { \ ++ int retry = 3, cnt = 1000; \ ++ sdr_set_bits(MSDC_CFG, MSDC_CFG_RST); \ ++ dsb(); \ ++ msdc_retry(sdr_read32(MSDC_CFG) & MSDC_CFG_RST, retry, cnt); \ ++ } while(0) ++#else ++#define msdc_reset() \ ++ do { \ ++ int retry = 3, cnt = 1000; \ ++ sdr_set_bits(MSDC_CFG, MSDC_CFG_RST); \ ++ msdc_retry(sdr_read32(MSDC_CFG) & MSDC_CFG_RST, retry, cnt); \ ++ } while(0) ++#endif /* end of +/- */ ++ ++#define msdc_clr_int() \ ++ do { \ ++ volatile u32 val = sdr_read32(MSDC_INT); \ ++ sdr_write32(MSDC_INT, val); \ ++ } while(0) ++ ++#define msdc_clr_fifo() \ ++ do { \ ++ int retry = 3, cnt = 1000; \ ++ sdr_set_bits(MSDC_FIFOCS, MSDC_FIFOCS_CLR); \ ++ msdc_retry(sdr_read32(MSDC_FIFOCS) & MSDC_FIFOCS_CLR, retry, cnt); \ ++ } while(0) ++ ++#define msdc_irq_save(val) \ ++ do { \ ++ val = sdr_read32(MSDC_INTEN); \ ++ sdr_clr_bits(MSDC_INTEN, val); \ ++ } while(0) ++ ++#define msdc_irq_restore(val) \ ++ do { \ ++ sdr_set_bits(MSDC_INTEN, val); \ ++ } while(0) ++ ++/* clock source for host: global */ ++#if defined (CONFIG_SOC_MT7620) ++static u32 hclks[] = {48000000}; /* +/- by chhung */ ++#elif defined (CONFIG_SOC_MT7621) ++static u32 hclks[] = {50000000}; /* +/- by chhung */ ++#endif ++ ++//============================================ ++// the power for msdc host controller: global ++// always keep the VMC on. ++//============================================ ++#define msdc_vcore_on(host) \ ++ do { \ ++ INIT_MSG("[+]VMC ref. count<%d>", ++host->pwr_ref); \ ++ (void)hwPowerOn(MT65XX_POWER_LDO_VMC, VOL_3300, "SD"); \ ++ } while (0) ++#define msdc_vcore_off(host) \ ++ do { \ ++ INIT_MSG("[-]VMC ref. count<%d>", --host->pwr_ref); \ ++ (void)hwPowerDown(MT65XX_POWER_LDO_VMC, "SD"); \ ++ } while (0) ++ ++//==================================== ++// the vdd output for card: global ++// always keep the VMCH on. ++//==================================== ++#define msdc_vdd_on(host) \ ++ do { \ ++ (void)hwPowerOn(MT65XX_POWER_LDO_VMCH, VOL_3300, "SD"); \ ++ } while (0) ++#define msdc_vdd_off(host) \ ++ do { \ ++ (void)hwPowerDown(MT65XX_POWER_LDO_VMCH, "SD"); \ ++ } while (0) ++ ++#define sdc_is_busy() (sdr_read32(SDC_STS) & SDC_STS_SDCBUSY) ++#define sdc_is_cmd_busy() (sdr_read32(SDC_STS) & SDC_STS_CMDBUSY) ++ ++#define sdc_send_cmd(cmd,arg) \ ++ do { \ ++ sdr_write32(SDC_ARG, (arg)); \ ++ sdr_write32(SDC_CMD, (cmd)); \ ++ } while(0) ++ ++// can modify to read h/w register. ++//#define is_card_present(h) ((sdr_read32(MSDC_PS) & MSDC_PS_CDSTS) ? 0 : 1); ++#define is_card_present(h) (((struct msdc_host*)(h))->card_inserted) ++ ++/* +++ by chhung */ ++#ifndef __ASSEMBLY__ ++#define PHYSADDR(a) (((unsigned long)(a)) & 0x1fffffff) ++#else ++#define PHYSADDR(a) ((a) & 0x1fffffff) ++#endif ++/* end of +++ */ ++static unsigned int msdc_do_command(struct msdc_host *host, ++ struct mmc_command *cmd, ++ int tune, ++ unsigned long timeout); ++ ++static int msdc_tune_cmdrsp(struct msdc_host*host,struct mmc_command *cmd); ++ ++#ifdef MT6575_SD_DEBUG ++static void msdc_dump_card_status(struct msdc_host *host, u32 status) ++{ ++ static char *state[] = { ++ "Idle", /* 0 */ ++ "Ready", /* 1 */ ++ "Ident", /* 2 */ ++ "Stby", /* 3 */ ++ "Tran", /* 4 */ ++ "Data", /* 5 */ ++ "Rcv", /* 6 */ ++ "Prg", /* 7 */ ++ "Dis", /* 8 */ ++ "Reserved", /* 9 */ ++ "Reserved", /* 10 */ ++ "Reserved", /* 11 */ ++ "Reserved", /* 12 */ ++ "Reserved", /* 13 */ ++ "Reserved", /* 14 */ ++ "I/O mode", /* 15 */ ++ }; ++ if (status & R1_OUT_OF_RANGE) ++ N_MSG(RSP, "[CARD_STATUS] Out of Range"); ++ if (status & R1_ADDRESS_ERROR) ++ N_MSG(RSP, "[CARD_STATUS] Address Error"); ++ if (status & R1_BLOCK_LEN_ERROR) ++ N_MSG(RSP, "[CARD_STATUS] Block Len Error"); ++ if (status & R1_ERASE_SEQ_ERROR) ++ N_MSG(RSP, "[CARD_STATUS] Erase Seq Error"); ++ if (status & R1_ERASE_PARAM) ++ N_MSG(RSP, "[CARD_STATUS] Erase Param"); ++ if (status & R1_WP_VIOLATION) ++ N_MSG(RSP, "[CARD_STATUS] WP Violation"); ++ if (status & R1_CARD_IS_LOCKED) ++ N_MSG(RSP, "[CARD_STATUS] Card is Locked"); ++ if (status & R1_LOCK_UNLOCK_FAILED) ++ N_MSG(RSP, "[CARD_STATUS] Lock/Unlock Failed"); ++ if (status & R1_COM_CRC_ERROR) ++ N_MSG(RSP, "[CARD_STATUS] Command CRC Error"); ++ if (status & R1_ILLEGAL_COMMAND) ++ N_MSG(RSP, "[CARD_STATUS] Illegal Command"); ++ if (status & R1_CARD_ECC_FAILED) ++ N_MSG(RSP, "[CARD_STATUS] Card ECC Failed"); ++ if (status & R1_CC_ERROR) ++ N_MSG(RSP, "[CARD_STATUS] CC Error"); ++ if (status & R1_ERROR) ++ N_MSG(RSP, "[CARD_STATUS] Error"); ++ if (status & R1_UNDERRUN) ++ N_MSG(RSP, "[CARD_STATUS] Underrun"); ++ if (status & R1_OVERRUN) ++ N_MSG(RSP, "[CARD_STATUS] Overrun"); ++ if (status & R1_CID_CSD_OVERWRITE) ++ N_MSG(RSP, "[CARD_STATUS] CID/CSD Overwrite"); ++ if (status & R1_WP_ERASE_SKIP) ++ N_MSG(RSP, "[CARD_STATUS] WP Eraser Skip"); ++ if (status & R1_CARD_ECC_DISABLED) ++ N_MSG(RSP, "[CARD_STATUS] Card ECC Disabled"); ++ if (status & R1_ERASE_RESET) ++ N_MSG(RSP, "[CARD_STATUS] Erase Reset"); ++ if (status & R1_READY_FOR_DATA) ++ N_MSG(RSP, "[CARD_STATUS] Ready for Data"); ++ if (status & R1_SWITCH_ERROR) ++ N_MSG(RSP, "[CARD_STATUS] Switch error"); ++ if (status & R1_APP_CMD) ++ N_MSG(RSP, "[CARD_STATUS] App Command"); ++ ++ N_MSG(RSP, "[CARD_STATUS] '%s' State", state[R1_CURRENT_STATE(status)]); ++} ++ ++static void msdc_dump_ocr_reg(struct msdc_host *host, u32 resp) ++{ ++ if (resp & (1 << 7)) ++ N_MSG(RSP, "[OCR] Low Voltage Range"); ++ if (resp & (1 << 15)) ++ N_MSG(RSP, "[OCR] 2.7-2.8 volt"); ++ if (resp & (1 << 16)) ++ N_MSG(RSP, "[OCR] 2.8-2.9 volt"); ++ if (resp & (1 << 17)) ++ N_MSG(RSP, "[OCR] 2.9-3.0 volt"); ++ if (resp & (1 << 18)) ++ N_MSG(RSP, "[OCR] 3.0-3.1 volt"); ++ if (resp & (1 << 19)) ++ N_MSG(RSP, "[OCR] 3.1-3.2 volt"); ++ if (resp & (1 << 20)) ++ N_MSG(RSP, "[OCR] 3.2-3.3 volt"); ++ if (resp & (1 << 21)) ++ N_MSG(RSP, "[OCR] 3.3-3.4 volt"); ++ if (resp & (1 << 22)) ++ N_MSG(RSP, "[OCR] 3.4-3.5 volt"); ++ if (resp & (1 << 23)) ++ N_MSG(RSP, "[OCR] 3.5-3.6 volt"); ++ if (resp & (1 << 24)) ++ N_MSG(RSP, "[OCR] Switching to 1.8V Accepted (S18A)"); ++ if (resp & (1 << 30)) ++ N_MSG(RSP, "[OCR] Card Capacity Status (CCS)"); ++ if (resp & (1 << 31)) ++ N_MSG(RSP, "[OCR] Card Power Up Status (Idle)"); ++ else ++ N_MSG(RSP, "[OCR] Card Power Up Status (Busy)"); ++} ++ ++static void msdc_dump_rca_resp(struct msdc_host *host, u32 resp) ++{ ++ u32 status = (((resp >> 15) & 0x1) << 23) | ++ (((resp >> 14) & 0x1) << 22) | ++ (((resp >> 13) & 0x1) << 19) | ++ (resp & 0x1fff); ++ ++ N_MSG(RSP, "[RCA] 0x%.4x", resp >> 16); ++ msdc_dump_card_status(host, status); ++} ++ ++static void msdc_dump_io_resp(struct msdc_host *host, u32 resp) ++{ ++ u32 flags = (resp >> 8) & 0xFF; ++ char *state[] = {"DIS", "CMD", "TRN", "RFU"}; ++ ++ if (flags & (1 << 7)) ++ N_MSG(RSP, "[IO] COM_CRC_ERR"); ++ if (flags & (1 << 6)) ++ N_MSG(RSP, "[IO] Illgal command"); ++ if (flags & (1 << 3)) ++ N_MSG(RSP, "[IO] Error"); ++ if (flags & (1 << 2)) ++ N_MSG(RSP, "[IO] RFU"); ++ if (flags & (1 << 1)) ++ N_MSG(RSP, "[IO] Function number error"); ++ if (flags & (1 << 0)) ++ N_MSG(RSP, "[IO] Out of range"); ++ ++ N_MSG(RSP, "[IO] State: %s, Data:0x%x", state[(resp >> 12) & 0x3], resp & 0xFF); ++} ++#endif ++ ++static void msdc_set_timeout(struct msdc_host *host, u32 ns, u32 clks) ++{ ++ u32 base = host->base; ++ u32 timeout, clk_ns; ++ ++ host->timeout_ns = ns; ++ host->timeout_clks = clks; ++ ++ clk_ns = 1000000000UL / host->sclk; ++ timeout = ns / clk_ns + clks; ++ timeout = timeout >> 16; /* in 65536 sclk cycle unit */ ++ timeout = timeout > 1 ? timeout - 1 : 0; ++ timeout = timeout > 255 ? 255 : timeout; ++ ++ sdr_set_field(SDC_CFG, SDC_CFG_DTOC, timeout); ++ ++ N_MSG(OPS, "Set read data timeout: %dns %dclks -> %d x 65536 cycles", ++ ns, clks, timeout + 1); ++} ++ ++/* msdc_eirq_sdio() will be called when EIRQ(for WIFI) */ ++static void msdc_eirq_sdio(void *data) ++{ ++ struct msdc_host *host = (struct msdc_host *)data; ++ ++ N_MSG(INT, "SDIO EINT"); ++ ++ mmc_signal_sdio_irq(host->mmc); ++} ++ ++/* msdc_eirq_cd will not be used! We not using EINT for card detection. */ ++static void msdc_eirq_cd(void *data) ++{ ++ struct msdc_host *host = (struct msdc_host *)data; ++ ++ N_MSG(INT, "CD EINT"); ++ ++#if 0 ++ tasklet_hi_schedule(&host->card_tasklet); ++#else ++ schedule_delayed_work(&host->card_delaywork, HZ); ++#endif ++} ++ ++#if 0 ++static void msdc_tasklet_card(unsigned long arg) ++{ ++ struct msdc_host *host = (struct msdc_host *)arg; ++#else ++static void msdc_tasklet_card(struct work_struct *work) ++{ ++ struct msdc_host *host = (struct msdc_host *)container_of(work, ++ struct msdc_host, card_delaywork.work); ++#endif ++ struct msdc_hw *hw = host->hw; ++ u32 base = host->base; ++ u32 inserted; ++ u32 status = 0; ++ //u32 change = 0; ++ ++ spin_lock(&host->lock); ++ ++ if (hw->get_cd_status) { // NULL ++ inserted = hw->get_cd_status(); ++ } else { ++ status = sdr_read32(MSDC_PS); ++ if (cd_active_low) ++ inserted = (status & MSDC_PS_CDSTS) ? 0 : 1; ++ else ++ inserted = (status & MSDC_PS_CDSTS) ? 1 : 0; ++ } ++ ++#if 0 ++ change = host->card_inserted ^ inserted; ++ host->card_inserted = inserted; ++ ++ if (change && !host->suspend) { ++ if (inserted) { ++ host->mmc->f_max = HOST_MAX_MCLK; // work around ++ } ++ mmc_detect_change(host->mmc, msecs_to_jiffies(20)); ++ } ++#else /* Make sure: handle the last interrupt */ ++ host->card_inserted = inserted; ++ ++ if (!host->suspend) { ++ host->mmc->f_max = HOST_MAX_MCLK; ++ mmc_detect_change(host->mmc, msecs_to_jiffies(20)); ++ } ++ ++ IRQ_MSG("card found<%s>", inserted ? "inserted" : "removed"); ++#endif ++ ++ spin_unlock(&host->lock); ++} ++ ++#if 0 /* --- by chhung */ ++/* For E2 only */ ++static u8 clk_src_bit[4] = { ++ 0, 3, 5, 7 ++}; ++ ++static void msdc_select_clksrc(struct msdc_host* host, unsigned char clksrc) ++{ ++ u32 val; ++ u32 base = host->base; ++ ++ BUG_ON(clksrc > 3); ++ INIT_MSG("set clock source to <%d>", clksrc); ++ ++ val = sdr_read32(MSDC_CLKSRC_REG); ++ if (sdr_read32(MSDC_ECO_VER) >= 4) { ++ val &= ~(0x3 << clk_src_bit[host->id]); ++ val |= clksrc << clk_src_bit[host->id]; ++ } else { ++ val &= ~0x3; val |= clksrc; ++ } ++ sdr_write32(MSDC_CLKSRC_REG, val); ++ ++ host->hclk = hclks[clksrc]; ++ host->hw->clk_src = clksrc; ++} ++#endif /* end of --- */ ++ ++static void msdc_set_mclk(struct msdc_host *host, int ddr, unsigned int hz) ++{ ++ //struct msdc_hw *hw = host->hw; ++ u32 base = host->base; ++ u32 mode; ++ u32 flags; ++ u32 div; ++ u32 sclk; ++ u32 hclk = host->hclk; ++ //u8 clksrc = hw->clk_src; ++ ++ if (!hz) { // set mmc system clock to 0 ? ++ //ERR_MSG("set mclk to 0!!!"); ++ msdc_reset(); ++ return; ++ } ++ ++ msdc_irq_save(flags); ++ ++#if defined (CONFIG_MT7621_FPGA) || defined (CONFIG_MT7628_FPGA) ++ mode = 0x0; /* use divisor */ ++ if (hz >= (hclk >> 1)) { ++ div = 0; /* mean div = 1/2 */ ++ sclk = hclk >> 1; /* sclk = clk / 2 */ ++ } else { ++ div = (hclk + ((hz << 2) - 1)) / (hz << 2); ++ sclk = (hclk >> 2) / div; ++ } ++#else ++ if (ddr) { ++ mode = 0x2; /* ddr mode and use divisor */ ++ if (hz >= (hclk >> 2)) { ++ div = 1; /* mean div = 1/4 */ ++ sclk = hclk >> 2; /* sclk = clk / 4 */ ++ } else { ++ div = (hclk + ((hz << 2) - 1)) / (hz << 2); ++ sclk = (hclk >> 2) / div; ++ } ++ } else if (hz >= hclk) { /* bug fix */ ++ mode = 0x1; /* no divisor and divisor is ignored */ ++ div = 0; ++ sclk = hclk; ++ } else { ++ mode = 0x0; /* use divisor */ ++ if (hz >= (hclk >> 1)) { ++ div = 0; /* mean div = 1/2 */ ++ sclk = hclk >> 1; /* sclk = clk / 2 */ ++ } else { ++ div = (hclk + ((hz << 2) - 1)) / (hz << 2); ++ sclk = (hclk >> 2) / div; ++ } ++ } ++#endif ++ /* set clock mode and divisor */ ++ sdr_set_field(MSDC_CFG, MSDC_CFG_CKMOD, mode); ++ sdr_set_field(MSDC_CFG, MSDC_CFG_CKDIV, div); ++ ++ /* wait clock stable */ ++ while (!(sdr_read32(MSDC_CFG) & MSDC_CFG_CKSTB)); ++ ++ host->sclk = sclk; ++ host->mclk = hz; ++ msdc_set_timeout(host, host->timeout_ns, host->timeout_clks); // need? ++ ++ INIT_MSG("================"); ++ INIT_MSG("!!! Set<%dKHz> Source<%dKHz> -> sclk<%dKHz>", hz/1000, hclk/1000, sclk/1000); ++ INIT_MSG("================"); ++ ++ msdc_irq_restore(flags); ++} ++ ++/* Fix me. when need to abort */ ++static void msdc_abort_data(struct msdc_host *host) ++{ ++ u32 base = host->base; ++ struct mmc_command *stop = host->mrq->stop; ++ ++ ERR_MSG("Need to Abort. dma<%d>", host->dma_xfer); ++ ++ msdc_reset(); ++ msdc_clr_fifo(); ++ msdc_clr_int(); ++ ++ // need to check FIFO count 0 ? ++ ++ if (stop) { /* try to stop, but may not success */ ++ ERR_MSG("stop when abort CMD<%d>", stop->opcode); ++ (void)msdc_do_command(host, stop, 0, CMD_TIMEOUT); ++ } ++ ++ //if (host->mclk >= 25000000) { ++ // msdc_set_mclk(host, 0, host->mclk >> 1); ++ //} ++} ++ ++#if 0 /* --- by chhung */ ++static void msdc_pin_config(struct msdc_host *host, int mode) ++{ ++ struct msdc_hw *hw = host->hw; ++ u32 base = host->base; ++ int pull = (mode == MSDC_PIN_PULL_UP) ? GPIO_PULL_UP : GPIO_PULL_DOWN; ++ ++ /* Config WP pin */ ++ if (hw->flags & MSDC_WP_PIN_EN) { ++ if (hw->config_gpio_pin) /* NULL */ ++ hw->config_gpio_pin(MSDC_WP_PIN, pull); ++ } ++ ++ switch (mode) { ++ case MSDC_PIN_PULL_UP: ++ //sdr_set_field(MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKPU, 1); /* Check & FIXME */ ++ //sdr_set_field(MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKPD, 0); /* Check & FIXME */ ++ sdr_set_field(MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDPU, 1); ++ sdr_set_field(MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDPD, 0); ++ sdr_set_field(MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATPU, 1); ++ sdr_set_field(MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATPD, 0); ++ break; ++ case MSDC_PIN_PULL_DOWN: ++ //sdr_set_field(MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKPU, 0); /* Check & FIXME */ ++ //sdr_set_field(MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKPD, 1); /* Check & FIXME */ ++ sdr_set_field(MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDPU, 0); ++ sdr_set_field(MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDPD, 1); ++ sdr_set_field(MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATPU, 0); ++ sdr_set_field(MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATPD, 1); ++ break; ++ case MSDC_PIN_PULL_NONE: ++ default: ++ //sdr_set_field(MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKPU, 0); /* Check & FIXME */ ++ //sdr_set_field(MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKPD, 0); /* Check & FIXME */ ++ sdr_set_field(MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDPU, 0); ++ sdr_set_field(MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDPD, 0); ++ sdr_set_field(MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATPU, 0); ++ sdr_set_field(MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATPD, 0); ++ break; ++ } ++ ++ N_MSG(CFG, "Pins mode(%d), down(%d), up(%d)", ++ mode, MSDC_PIN_PULL_DOWN, MSDC_PIN_PULL_UP); ++} ++ ++void msdc_pin_reset(struct msdc_host *host, int mode) ++{ ++ struct msdc_hw *hw = (struct msdc_hw *)host->hw; ++ u32 base = host->base; ++ int pull = (mode == MSDC_PIN_PULL_UP) ? GPIO_PULL_UP : GPIO_PULL_DOWN; ++ ++ /* Config reset pin */ ++ if (hw->flags & MSDC_RST_PIN_EN) { ++ if (hw->config_gpio_pin) /* NULL */ ++ hw->config_gpio_pin(MSDC_RST_PIN, pull); ++ ++ if (mode == MSDC_PIN_PULL_UP) { ++ sdr_clr_bits(EMMC_IOCON, EMMC_IOCON_BOOTRST); ++ } else { ++ sdr_set_bits(EMMC_IOCON, EMMC_IOCON_BOOTRST); ++ } ++ } ++} ++ ++static void msdc_core_power(struct msdc_host *host, int on) ++{ ++ N_MSG(CFG, "Turn %s %s power (copower: %d -> %d)", ++ on ? "on" : "off", "core", host->core_power, on); ++ ++ if (on && host->core_power == 0) { ++ msdc_vcore_on(host); ++ host->core_power = 1; ++ msleep(1); ++ } else if (!on && host->core_power == 1) { ++ msdc_vcore_off(host); ++ host->core_power = 0; ++ msleep(1); ++ } ++} ++ ++static void msdc_host_power(struct msdc_host *host, int on) ++{ ++ N_MSG(CFG, "Turn %s %s power ", on ? "on" : "off", "host"); ++ ++ if (on) { ++ //msdc_core_power(host, 1); // need do card detection. ++ msdc_pin_reset(host, MSDC_PIN_PULL_UP); ++ } else { ++ msdc_pin_reset(host, MSDC_PIN_PULL_DOWN); ++ //msdc_core_power(host, 0); ++ } ++} ++ ++static void msdc_card_power(struct msdc_host *host, int on) ++{ ++ N_MSG(CFG, "Turn %s %s power ", on ? "on" : "off", "card"); ++ ++ if (on) { ++ msdc_pin_config(host, MSDC_PIN_PULL_UP); ++ if (host->hw->ext_power_on) { ++ host->hw->ext_power_on(); ++ } else { ++ //msdc_vdd_on(host); // need todo card detection. ++ } ++ msleep(1); ++ } else { ++ if (host->hw->ext_power_off) { ++ host->hw->ext_power_off(); ++ } else { ++ //msdc_vdd_off(host); ++ } ++ msdc_pin_config(host, MSDC_PIN_PULL_DOWN); ++ msleep(1); ++ } ++} ++ ++static void msdc_set_power_mode(struct msdc_host *host, u8 mode) ++{ ++ N_MSG(CFG, "Set power mode(%d)", mode); ++ ++ if (host->power_mode == MMC_POWER_OFF && mode != MMC_POWER_OFF) { ++ msdc_host_power(host, 1); ++ msdc_card_power(host, 1); ++ } else if (host->power_mode != MMC_POWER_OFF && mode == MMC_POWER_OFF) { ++ msdc_card_power(host, 0); ++ msdc_host_power(host, 0); ++ } ++ host->power_mode = mode; ++} ++#endif /* end of --- */ ++ ++#ifdef CONFIG_PM ++/* ++ register as callback function of WIFI(combo_sdio_register_pm) . ++ can called by msdc_drv_suspend/resume too. ++*/ ++static void msdc_pm(pm_message_t state, void *data) ++{ ++ struct msdc_host *host = (struct msdc_host *)data; ++ int evt = state.event; ++ ++ if (evt == PM_EVENT_USER_RESUME || evt == PM_EVENT_USER_SUSPEND) { ++ INIT_MSG("USR_%s: suspend<%d> power<%d>", ++ evt == PM_EVENT_USER_RESUME ? "EVENT_USER_RESUME" : "EVENT_USER_SUSPEND", ++ host->suspend, host->power_mode); ++ } ++ ++ if (evt == PM_EVENT_SUSPEND || evt == PM_EVENT_USER_SUSPEND) { ++ if (host->suspend) /* already suspend */ /* default 0*/ ++ return; ++ ++ /* for memory card. already power off by mmc */ ++ if (evt == PM_EVENT_SUSPEND && host->power_mode == MMC_POWER_OFF) ++ return; ++ ++ host->suspend = 1; ++ host->pm_state = state; /* default PMSG_RESUME */ ++ ++ INIT_MSG("%s Suspend", evt == PM_EVENT_SUSPEND ? "PM" : "USR"); ++ if(host->hw->flags & MSDC_SYS_SUSPEND) /* set for card */ ++ (void)mmc_suspend_host(host->mmc); ++ else { ++ // host->mmc->pm_flags |= MMC_PM_IGNORE_PM_NOTIFY; /* just for double confirm */ /* --- by chhung */ ++ mmc_remove_host(host->mmc); ++ } ++ } else if (evt == PM_EVENT_RESUME || evt == PM_EVENT_USER_RESUME) { ++ if (!host->suspend){ ++ //ERR_MSG("warning: already resume"); ++ return; ++ } ++ ++ /* No PM resume when USR suspend */ ++ if (evt == PM_EVENT_RESUME && host->pm_state.event == PM_EVENT_USER_SUSPEND) { ++ ERR_MSG("PM Resume when in USR Suspend"); /* won't happen. */ ++ return; ++ } ++ ++ host->suspend = 0; ++ host->pm_state = state; ++ ++ INIT_MSG("%s Resume", evt == PM_EVENT_RESUME ? "PM" : "USR"); ++ if(host->hw->flags & MSDC_SYS_SUSPEND) { /* will not set for WIFI */ ++ (void)mmc_resume_host(host->mmc); ++ } ++ else { ++ // host->mmc->pm_flags |= MMC_PM_IGNORE_PM_NOTIFY; /* --- by chhung */ ++ mmc_add_host(host->mmc); ++ } ++ } ++} ++#endif ++ ++/*--------------------------------------------------------------------------*/ ++/* mmc_host_ops members */ ++/*--------------------------------------------------------------------------*/ ++static unsigned int msdc_command_start(struct msdc_host *host, ++ struct mmc_command *cmd, ++ int tune, /* not used */ ++ unsigned long timeout) ++{ ++ u32 base = host->base; ++ u32 opcode = cmd->opcode; ++ u32 rawcmd; ++ u32 wints = MSDC_INT_CMDRDY | MSDC_INT_RSPCRCERR | MSDC_INT_CMDTMO | ++ MSDC_INT_ACMDRDY | MSDC_INT_ACMDCRCERR | MSDC_INT_ACMDTMO | ++ MSDC_INT_ACMD19_DONE; ++ ++ u32 resp; ++ unsigned long tmo; ++ ++ /* Protocol layer does not provide response type, but our hardware needs ++ * to know exact type, not just size! ++ */ ++ if (opcode == MMC_SEND_OP_COND || opcode == SD_APP_OP_COND) ++ resp = RESP_R3; ++ else if (opcode == MMC_SET_RELATIVE_ADDR || opcode == SD_SEND_RELATIVE_ADDR) ++ resp = (mmc_cmd_type(cmd) == MMC_CMD_BCR) ? RESP_R6 : RESP_R1; ++ else if (opcode == MMC_FAST_IO) ++ resp = RESP_R4; ++ else if (opcode == MMC_GO_IRQ_STATE) ++ resp = RESP_R5; ++ else if (opcode == MMC_SELECT_CARD) ++ resp = (cmd->arg != 0) ? RESP_R1B : RESP_NONE; ++ else if (opcode == SD_IO_RW_DIRECT || opcode == SD_IO_RW_EXTENDED) ++ resp = RESP_R1; /* SDIO workaround. */ ++ else if (opcode == SD_SEND_IF_COND && (mmc_cmd_type(cmd) == MMC_CMD_BCR)) ++ resp = RESP_R1; ++ else { ++ switch (mmc_resp_type(cmd)) { ++ case MMC_RSP_R1: ++ resp = RESP_R1; ++ break; ++ case MMC_RSP_R1B: ++ resp = RESP_R1B; ++ break; ++ case MMC_RSP_R2: ++ resp = RESP_R2; ++ break; ++ case MMC_RSP_R3: ++ resp = RESP_R3; ++ break; ++ case MMC_RSP_NONE: ++ default: ++ resp = RESP_NONE; ++ break; ++ } ++ } ++ ++ cmd->error = 0; ++ /* rawcmd : ++ * vol_swt << 30 | auto_cmd << 28 | blklen << 16 | go_irq << 15 | ++ * stop << 14 | rw << 13 | dtype << 11 | rsptyp << 7 | brk << 6 | opcode ++ */ ++ rawcmd = opcode | msdc_rsp[resp] << 7 | host->blksz << 16; ++ ++ if (opcode == MMC_READ_MULTIPLE_BLOCK) { ++ rawcmd |= (2 << 11); ++ } else if (opcode == MMC_READ_SINGLE_BLOCK) { ++ rawcmd |= (1 << 11); ++ } else if (opcode == MMC_WRITE_MULTIPLE_BLOCK) { ++ rawcmd |= ((2 << 11) | (1 << 13)); ++ } else if (opcode == MMC_WRITE_BLOCK) { ++ rawcmd |= ((1 << 11) | (1 << 13)); ++ } else if (opcode == SD_IO_RW_EXTENDED) { ++ if (cmd->data->flags & MMC_DATA_WRITE) ++ rawcmd |= (1 << 13); ++ if (cmd->data->blocks > 1) ++ rawcmd |= (2 << 11); ++ else ++ rawcmd |= (1 << 11); ++ } else if (opcode == SD_IO_RW_DIRECT && cmd->flags == (unsigned int)-1) { ++ rawcmd |= (1 << 14); ++ } else if ((opcode == SD_APP_SEND_SCR) || ++ (opcode == SD_APP_SEND_NUM_WR_BLKS) || ++ (opcode == SD_SWITCH && (mmc_cmd_type(cmd) == MMC_CMD_ADTC)) || ++ (opcode == SD_APP_SD_STATUS && (mmc_cmd_type(cmd) == MMC_CMD_ADTC)) || ++ (opcode == MMC_SEND_EXT_CSD && (mmc_cmd_type(cmd) == MMC_CMD_ADTC))) { ++ rawcmd |= (1 << 11); ++ } else if (opcode == MMC_STOP_TRANSMISSION) { ++ rawcmd |= (1 << 14); ++ rawcmd &= ~(0x0FFF << 16); ++ } ++ ++ N_MSG(CMD, "CMD<%d><0x%.8x> Arg<0x%.8x>", opcode , rawcmd, cmd->arg); ++ ++ tmo = jiffies + timeout; ++ ++ if (opcode == MMC_SEND_STATUS) { ++ for (;;) { ++ if (!sdc_is_cmd_busy()) ++ break; ++ ++ if (time_after(jiffies, tmo)) { ++ ERR_MSG("XXX cmd_busy timeout: before CMD<%d>", opcode); ++ cmd->error = (unsigned int)-ETIMEDOUT; ++ msdc_reset(); ++ goto end; ++ } ++ } ++ }else { ++ for (;;) { ++ if (!sdc_is_busy()) ++ break; ++ if (time_after(jiffies, tmo)) { ++ ERR_MSG("XXX sdc_busy timeout: before CMD<%d>", opcode); ++ cmd->error = (unsigned int)-ETIMEDOUT; ++ msdc_reset(); ++ goto end; ++ } ++ } ++ } ++ ++ //BUG_ON(in_interrupt()); ++ host->cmd = cmd; ++ host->cmd_rsp = resp; ++ ++ init_completion(&host->cmd_done); ++ ++ sdr_set_bits(MSDC_INTEN, wints); ++ sdc_send_cmd(rawcmd, cmd->arg); ++ ++end: ++ return cmd->error; ++} ++ ++static unsigned int msdc_command_resp(struct msdc_host *host, ++ struct mmc_command *cmd, ++ int tune, ++ unsigned long timeout) ++{ ++ u32 base = host->base; ++ u32 opcode = cmd->opcode; ++ //u32 rawcmd; ++ u32 resp; ++ u32 wints = MSDC_INT_CMDRDY | MSDC_INT_RSPCRCERR | MSDC_INT_CMDTMO | ++ MSDC_INT_ACMDRDY | MSDC_INT_ACMDCRCERR | MSDC_INT_ACMDTMO | ++ MSDC_INT_ACMD19_DONE; ++ ++ resp = host->cmd_rsp; ++ ++ BUG_ON(in_interrupt()); ++ //init_completion(&host->cmd_done); ++ //sdr_set_bits(MSDC_INTEN, wints); ++ ++ spin_unlock(&host->lock); ++ if(!wait_for_completion_timeout(&host->cmd_done, 10*timeout)){ ++ ERR_MSG("XXX CMD<%d> wait_for_completion timeout ARG<0x%.8x>", opcode, cmd->arg); ++ cmd->error = (unsigned int)-ETIMEDOUT; ++ msdc_reset(); ++ } ++ spin_lock(&host->lock); ++ ++ sdr_clr_bits(MSDC_INTEN, wints); ++ host->cmd = NULL; ++ ++//end: ++#ifdef MT6575_SD_DEBUG ++ switch (resp) { ++ case RESP_NONE: ++ N_MSG(RSP, "CMD_RSP(%d): %d RSP(%d)", opcode, cmd->error, resp); ++ break; ++ case RESP_R2: ++ N_MSG(RSP, "CMD_RSP(%d): %d RSP(%d)= %.8x %.8x %.8x %.8x", ++ opcode, cmd->error, resp, cmd->resp[0], cmd->resp[1], ++ cmd->resp[2], cmd->resp[3]); ++ break; ++ default: /* Response types 1, 3, 4, 5, 6, 7(1b) */ ++ N_MSG(RSP, "CMD_RSP(%d): %d RSP(%d)= 0x%.8x", ++ opcode, cmd->error, resp, cmd->resp[0]); ++ if (cmd->error == 0) { ++ switch (resp) { ++ case RESP_R1: ++ case RESP_R1B: ++ msdc_dump_card_status(host, cmd->resp[0]); ++ break; ++ case RESP_R3: ++ msdc_dump_ocr_reg(host, cmd->resp[0]); ++ break; ++ case RESP_R5: ++ msdc_dump_io_resp(host, cmd->resp[0]); ++ break; ++ case RESP_R6: ++ msdc_dump_rca_resp(host, cmd->resp[0]); ++ break; ++ } ++ } ++ break; ++ } ++#endif ++ ++ /* do we need to save card's RCA when SD_SEND_RELATIVE_ADDR */ ++ ++ if (!tune) { ++ return cmd->error; ++ } ++ ++ /* memory card CRC */ ++ if(host->hw->flags & MSDC_REMOVABLE && cmd->error == (unsigned int)(-EIO) ) { ++ if (sdr_read32(SDC_CMD) & 0x1800) { /* check if has data phase */ ++ msdc_abort_data(host); ++ } else { ++ /* do basic: reset*/ ++ msdc_reset(); ++ msdc_clr_fifo(); ++ msdc_clr_int(); ++ } ++ cmd->error = msdc_tune_cmdrsp(host,cmd); ++ } ++ ++ // check DAT0 ++ /* if (resp == RESP_R1B) { ++ while ((sdr_read32(MSDC_PS) & 0x10000) != 0x10000); ++ } */ ++ /* CMD12 Error Handle */ ++ ++ return cmd->error; ++} ++ ++static unsigned int msdc_do_command(struct msdc_host *host, ++ struct mmc_command *cmd, ++ int tune, ++ unsigned long timeout) ++{ ++ if (msdc_command_start(host, cmd, tune, timeout)) ++ goto end; ++ ++ if (msdc_command_resp(host, cmd, tune, timeout)) ++ goto end; ++ ++end: ++ ++ N_MSG(CMD, " return<%d> resp<0x%.8x>", cmd->error, cmd->resp[0]); ++ return cmd->error; ++} ++ ++/* The abort condition when PIO read/write ++ tmo: ++*/ ++static int msdc_pio_abort(struct msdc_host *host, struct mmc_data *data, unsigned long tmo) ++{ ++ int ret = 0; ++ u32 base = host->base; ++ ++ if (atomic_read(&host->abort)) { ++ ret = 1; ++ } ++ ++ if (time_after(jiffies, tmo)) { ++ data->error = (unsigned int)-ETIMEDOUT; ++ ERR_MSG("XXX PIO Data Timeout: CMD<%d>", host->mrq->cmd->opcode); ++ ret = 1; ++ } ++ ++ if(ret) { ++ msdc_reset(); ++ msdc_clr_fifo(); ++ msdc_clr_int(); ++ ERR_MSG("msdc pio find abort"); ++ } ++ return ret; ++} ++ ++/* ++ Need to add a timeout, or WDT timeout, system reboot. ++*/ ++// pio mode data read/write ++static int msdc_pio_read(struct msdc_host *host, struct mmc_data *data) ++{ ++ struct scatterlist *sg = data->sg; ++ u32 base = host->base; ++ u32 num = data->sg_len; ++ u32 *ptr; ++ u8 *u8ptr; ++ u32 left = 0; ++ u32 count, size = 0; ++ u32 wints = MSDC_INTEN_DATTMO | MSDC_INTEN_DATCRCERR ; ++ unsigned long tmo = jiffies + DAT_TIMEOUT; ++ ++ sdr_set_bits(MSDC_INTEN, wints); ++ while (num) { ++ left = sg_dma_len(sg); ++ ptr = sg_virt(sg); ++ while (left) { ++ if ((left >= MSDC_FIFO_THD) && (msdc_rxfifocnt() >= MSDC_FIFO_THD)) { ++ count = MSDC_FIFO_THD >> 2; ++ do { ++ *ptr++ = msdc_fifo_read32(); ++ } while (--count); ++ left -= MSDC_FIFO_THD; ++ } else if ((left < MSDC_FIFO_THD) && msdc_rxfifocnt() >= left) { ++ while (left > 3) { ++ *ptr++ = msdc_fifo_read32(); ++ left -= 4; ++ } ++ ++ u8ptr = (u8 *)ptr; ++ while(left) { ++ * u8ptr++ = msdc_fifo_read8(); ++ left--; ++ } ++ } ++ ++ if (msdc_pio_abort(host, data, tmo)) { ++ goto end; ++ } ++ } ++ size += sg_dma_len(sg); ++ sg = sg_next(sg); num--; ++ } ++end: ++ data->bytes_xfered += size; ++ N_MSG(FIO, " PIO Read<%d>bytes", size); ++ ++ sdr_clr_bits(MSDC_INTEN, wints); ++ if(data->error) ERR_MSG("read pio data->error<%d> left<%d> size<%d>", data->error, left, size); ++ return data->error; ++} ++ ++/* please make sure won't using PIO when size >= 512 ++ which means, memory card block read/write won't using pio ++ then don't need to handle the CMD12 when data error. ++*/ ++static int msdc_pio_write(struct msdc_host* host, struct mmc_data *data) ++{ ++ u32 base = host->base; ++ struct scatterlist *sg = data->sg; ++ u32 num = data->sg_len; ++ u32 *ptr; ++ u8 *u8ptr; ++ u32 left; ++ u32 count, size = 0; ++ u32 wints = MSDC_INTEN_DATTMO | MSDC_INTEN_DATCRCERR ; ++ unsigned long tmo = jiffies + DAT_TIMEOUT; ++ ++ sdr_set_bits(MSDC_INTEN, wints); ++ while (num) { ++ left = sg_dma_len(sg); ++ ptr = sg_virt(sg); ++ ++ while (left) { ++ if (left >= MSDC_FIFO_SZ && msdc_txfifocnt() == 0) { ++ count = MSDC_FIFO_SZ >> 2; ++ do { ++ msdc_fifo_write32(*ptr); ptr++; ++ } while (--count); ++ left -= MSDC_FIFO_SZ; ++ } else if (left < MSDC_FIFO_SZ && msdc_txfifocnt() == 0) { ++ while (left > 3) { ++ msdc_fifo_write32(*ptr); ptr++; ++ left -= 4; ++ } ++ ++ u8ptr = (u8*)ptr; ++ while(left){ ++ msdc_fifo_write8(*u8ptr); u8ptr++; ++ left--; ++ } ++ } ++ ++ if (msdc_pio_abort(host, data, tmo)) { ++ goto end; ++ } ++ } ++ size += sg_dma_len(sg); ++ sg = sg_next(sg); num--; ++ } ++end: ++ data->bytes_xfered += size; ++ N_MSG(FIO, " PIO Write<%d>bytes", size); ++ if(data->error) ERR_MSG("write pio data->error<%d>", data->error); ++ ++ sdr_clr_bits(MSDC_INTEN, wints); ++ return data->error; ++} ++ ++#if 0 /* --- by chhung */ ++// DMA resume / start / stop ++static void msdc_dma_resume(struct msdc_host *host) ++{ ++ u32 base = host->base; ++ ++ sdr_set_field(MSDC_DMA_CTRL, MSDC_DMA_CTRL_RESUME, 1); ++ ++ N_MSG(DMA, "DMA resume"); ++} ++#endif /* end of --- */ ++ ++static void msdc_dma_start(struct msdc_host *host) ++{ ++ u32 base = host->base; ++ u32 wints = MSDC_INTEN_XFER_COMPL | MSDC_INTEN_DATTMO | MSDC_INTEN_DATCRCERR ; ++ ++ sdr_set_bits(MSDC_INTEN, wints); ++ //dsb(); /* --- by chhung */ ++ sdr_set_field(MSDC_DMA_CTRL, MSDC_DMA_CTRL_START, 1); ++ ++ N_MSG(DMA, "DMA start"); ++} ++ ++static void msdc_dma_stop(struct msdc_host *host) ++{ ++ u32 base = host->base; ++ //u32 retries=500; ++ u32 wints = MSDC_INTEN_XFER_COMPL | MSDC_INTEN_DATTMO | MSDC_INTEN_DATCRCERR ; ++ ++ N_MSG(DMA, "DMA status: 0x%.8x",sdr_read32(MSDC_DMA_CFG)); ++ //while (sdr_read32(MSDC_DMA_CFG) & MSDC_DMA_CFG_STS); ++ ++ sdr_set_field(MSDC_DMA_CTRL, MSDC_DMA_CTRL_STOP, 1); ++ while (sdr_read32(MSDC_DMA_CFG) & MSDC_DMA_CFG_STS); ++ ++ //dsb(); /* --- by chhung */ ++ sdr_clr_bits(MSDC_INTEN, wints); /* Not just xfer_comp */ ++ ++ N_MSG(DMA, "DMA stop"); ++} ++ ++#if 0 /* --- by chhung */ ++/* dump a gpd list */ ++static void msdc_dma_dump(struct msdc_host *host, struct msdc_dma *dma) ++{ ++ gpd_t *gpd = dma->gpd; ++ bd_t *bd = dma->bd; ++ bd_t *ptr; ++ int i = 0; ++ int p_to_v; ++ ++ if (dma->mode != MSDC_MODE_DMA_DESC) { ++ return; ++ } ++ ++ ERR_MSG("try to dump gpd and bd"); ++ ++ /* dump gpd */ ++ ERR_MSG(".gpd<0x%.8x> gpd_phy<0x%.8x>", (int)gpd, (int)dma->gpd_addr); ++ ERR_MSG("...hwo <%d>", gpd->hwo ); ++ ERR_MSG("...bdp <%d>", gpd->bdp ); ++ ERR_MSG("...chksum<0x%.8x>", gpd->chksum ); ++ //ERR_MSG("...intr <0x%.8x>", gpd->intr ); ++ ERR_MSG("...next <0x%.8x>", (int)gpd->next ); ++ ERR_MSG("...ptr <0x%.8x>", (int)gpd->ptr ); ++ ERR_MSG("...buflen<0x%.8x>", gpd->buflen ); ++ //ERR_MSG("...extlen<0x%.8x>", gpd->extlen ); ++ //ERR_MSG("...arg <0x%.8x>", gpd->arg ); ++ //ERR_MSG("...blknum<0x%.8x>", gpd->blknum ); ++ //ERR_MSG("...cmd <0x%.8x>", gpd->cmd ); ++ ++ /* dump bd */ ++ ERR_MSG(".bd<0x%.8x> bd_phy<0x%.8x> gpd_ptr<0x%.8x>", (int)bd, (int)dma->bd_addr, (int)gpd->ptr); ++ ptr = bd; ++ p_to_v = ((u32)bd - (u32)dma->bd_addr); ++ while (1) { ++ ERR_MSG(".bd[%d]", i); i++; ++ ERR_MSG("...eol <%d>", ptr->eol ); ++ ERR_MSG("...chksum<0x%.8x>", ptr->chksum ); ++ //ERR_MSG("...blkpad<0x%.8x>", ptr->blkpad ); ++ //ERR_MSG("...dwpad <0x%.8x>", ptr->dwpad ); ++ ERR_MSG("...next <0x%.8x>", (int)ptr->next ); ++ ERR_MSG("...ptr <0x%.8x>", (int)ptr->ptr ); ++ ERR_MSG("...buflen<0x%.8x>", (int)ptr->buflen ); ++ ++ if (ptr->eol == 1) { ++ break; ++ } ++ ++ /* find the next bd, virtual address of ptr->next */ ++ /* don't need to enable when use malloc */ ++ //BUG_ON( (ptr->next + p_to_v)!=(ptr+1) ); ++ //ERR_MSG(".next bd<0x%.8x><0x%.8x>", (ptr->next + p_to_v), (ptr+1)); ++ ptr++; ++ } ++ ++ ERR_MSG("dump gpd and bd finished"); ++} ++#endif /* end of --- */ ++ ++/* calc checksum */ ++static u8 msdc_dma_calcs(u8 *buf, u32 len) ++{ ++ u32 i, sum = 0; ++ for (i = 0; i < len; i++) { ++ sum += buf[i]; ++ } ++ return 0xFF - (u8)sum; ++} ++ ++/* gpd bd setup + dma registers */ ++static int msdc_dma_config(struct msdc_host *host, struct msdc_dma *dma) ++{ ++ u32 base = host->base; ++ u32 sglen = dma->sglen; ++ //u32 i, j, num, bdlen, arg, xfersz; ++ u32 j, num, bdlen; ++ u8 blkpad, dwpad, chksum; ++ struct scatterlist *sg = dma->sg; ++ gpd_t *gpd; ++ bd_t *bd; ++ ++ switch (dma->mode) { ++ case MSDC_MODE_DMA_BASIC: ++ BUG_ON(dma->xfersz > 65535); ++ BUG_ON(dma->sglen != 1); ++ sdr_write32(MSDC_DMA_SA, PHYSADDR(sg_dma_address(sg))); ++ sdr_set_field(MSDC_DMA_CTRL, MSDC_DMA_CTRL_LASTBUF, 1); ++//#if defined (CONFIG_RALINK_MT7620) ++ if (ralink_soc == MT762X_SOC_MT7620A) ++ sdr_set_field(MSDC_DMA_CTRL, MSDC_DMA_CTRL_XFERSZ, sg_dma_len(sg)); ++//#elif defined (CONFIG_RALINK_MT7621) || defined (CONFIG_RALINK_MT7628) ++ else ++ sdr_write32((volatile u32*)(RALINK_MSDC_BASE+0xa8), sg_dma_len(sg)); ++//#endif ++ sdr_set_field(MSDC_DMA_CTRL, MSDC_DMA_CTRL_BRUSTSZ, dma->burstsz); ++ sdr_set_field(MSDC_DMA_CTRL, MSDC_DMA_CTRL_MODE, 0); ++ break; ++ case MSDC_MODE_DMA_DESC: ++ blkpad = (dma->flags & DMA_FLAG_PAD_BLOCK) ? 1 : 0; ++ dwpad = (dma->flags & DMA_FLAG_PAD_DWORD) ? 1 : 0; ++ chksum = (dma->flags & DMA_FLAG_EN_CHKSUM) ? 1 : 0; ++ ++ /* calculate the required number of gpd */ ++ num = (sglen + MAX_BD_PER_GPD - 1) / MAX_BD_PER_GPD; ++ BUG_ON(num !=1 ); ++ ++ gpd = dma->gpd; ++ bd = dma->bd; ++ bdlen = sglen; ++ ++ /* modify gpd*/ ++ //gpd->intr = 0; ++ gpd->hwo = 1; /* hw will clear it */ ++ gpd->bdp = 1; ++ gpd->chksum = 0; /* need to clear first. */ ++ gpd->chksum = (chksum ? msdc_dma_calcs((u8 *)gpd, 16) : 0); ++ ++ /* modify bd*/ ++ for (j = 0; j < bdlen; j++) { ++ msdc_init_bd(&bd[j], blkpad, dwpad, sg_dma_address(sg), sg_dma_len(sg)); ++ if(j == bdlen - 1) { ++ bd[j].eol = 1; /* the last bd */ ++ } else { ++ bd[j].eol = 0; ++ } ++ bd[j].chksum = 0; /* checksume need to clear first */ ++ bd[j].chksum = (chksum ? msdc_dma_calcs((u8 *)(&bd[j]), 16) : 0); ++ sg++; ++ } ++ ++ dma->used_gpd += 2; ++ dma->used_bd += bdlen; ++ ++ sdr_set_field(MSDC_DMA_CFG, MSDC_DMA_CFG_DECSEN, chksum); ++ sdr_set_field(MSDC_DMA_CTRL, MSDC_DMA_CTRL_BRUSTSZ, dma->burstsz); ++ sdr_set_field(MSDC_DMA_CTRL, MSDC_DMA_CTRL_MODE, 1); ++ ++ sdr_write32(MSDC_DMA_SA, PHYSADDR((u32)dma->gpd_addr)); ++ break; ++ ++ default: ++ break; ++ } ++ ++ N_MSG(DMA, "DMA_CTRL = 0x%x", sdr_read32(MSDC_DMA_CTRL)); ++ N_MSG(DMA, "DMA_CFG = 0x%x", sdr_read32(MSDC_DMA_CFG)); ++ N_MSG(DMA, "DMA_SA = 0x%x", sdr_read32(MSDC_DMA_SA)); ++ ++ return 0; ++} ++ ++static void msdc_dma_setup(struct msdc_host *host, struct msdc_dma *dma, ++ struct scatterlist *sg, unsigned int sglen) ++{ ++ BUG_ON(sglen > MAX_BD_NUM); /* not support currently */ ++ ++ dma->sg = sg; ++ dma->flags = DMA_FLAG_EN_CHKSUM; ++ //dma->flags = DMA_FLAG_NONE; /* CHECKME */ ++ dma->sglen = sglen; ++ dma->xfersz = host->xfer_size; ++ dma->burstsz = MSDC_BRUST_64B; ++ ++ if (sglen == 1 && sg_dma_len(sg) <= MAX_DMA_CNT) ++ dma->mode = MSDC_MODE_DMA_BASIC; ++ else ++ dma->mode = MSDC_MODE_DMA_DESC; ++ ++ N_MSG(DMA, "DMA mode<%d> sglen<%d> xfersz<%d>", dma->mode, dma->sglen, dma->xfersz); ++ ++ msdc_dma_config(host, dma); ++ ++ /*if (dma->mode == MSDC_MODE_DMA_DESC) { ++ //msdc_dma_dump(host, dma); ++ } */ ++} ++ ++/* set block number before send command */ ++static void msdc_set_blknum(struct msdc_host *host, u32 blknum) ++{ ++ u32 base = host->base; ++ ++ sdr_write32(SDC_BLK_NUM, blknum); ++} ++ ++static int msdc_do_request(struct mmc_host*mmc, struct mmc_request*mrq) ++{ ++ struct msdc_host *host = mmc_priv(mmc); ++ struct mmc_command *cmd; ++ struct mmc_data *data; ++ u32 base = host->base; ++ //u32 intsts = 0; ++ unsigned int left=0; ++ int dma = 0, read = 1, dir = DMA_FROM_DEVICE, send_type=0; ++ ++ #define SND_DAT 0 ++ #define SND_CMD 1 ++ ++ BUG_ON(mmc == NULL); ++ BUG_ON(mrq == NULL); ++ ++ host->error = 0; ++ atomic_set(&host->abort, 0); ++ ++ cmd = mrq->cmd; ++ data = mrq->cmd->data; ++ ++#if 0 /* --- by chhung */ ++ //if(host->id ==1){ ++ N_MSG(OPS, "enable clock!"); ++ msdc_ungate_clock(host->id); ++ //} ++#endif /* end of --- */ ++ ++ if (!data) { ++ send_type=SND_CMD; ++ if (msdc_do_command(host, cmd, 1, CMD_TIMEOUT) != 0) { ++ goto done; ++ } ++ } else { ++ BUG_ON(data->blksz > HOST_MAX_BLKSZ); ++ send_type=SND_DAT; ++ ++ data->error = 0; ++ read = data->flags & MMC_DATA_READ ? 1 : 0; ++ host->data = data; ++ host->xfer_size = data->blocks * data->blksz; ++ host->blksz = data->blksz; ++ ++ /* deside the transfer mode */ ++ if (drv_mode[host->id] == MODE_PIO) { ++ host->dma_xfer = dma = 0; ++ } else if (drv_mode[host->id] == MODE_DMA) { ++ host->dma_xfer = dma = 1; ++ } else if (drv_mode[host->id] == MODE_SIZE_DEP) { ++ host->dma_xfer = dma = ((host->xfer_size >= dma_size[host->id]) ? 1 : 0); ++ } ++ ++ if (read) { ++ if ((host->timeout_ns != data->timeout_ns) || ++ (host->timeout_clks != data->timeout_clks)) { ++ msdc_set_timeout(host, data->timeout_ns, data->timeout_clks); ++ } ++ } ++ ++ msdc_set_blknum(host, data->blocks); ++ //msdc_clr_fifo(); /* no need */ ++ ++ if (dma) { ++ msdc_dma_on(); /* enable DMA mode first!! */ ++ init_completion(&host->xfer_done); ++ ++ /* start the command first*/ ++ if (msdc_command_start(host, cmd, 1, CMD_TIMEOUT) != 0) ++ goto done; ++ ++ dir = read ? DMA_FROM_DEVICE : DMA_TO_DEVICE; ++ (void)dma_map_sg(mmc_dev(mmc), data->sg, data->sg_len, dir); ++ msdc_dma_setup(host, &host->dma, data->sg, data->sg_len); ++ ++ /* then wait command done */ ++ if (msdc_command_resp(host, cmd, 1, CMD_TIMEOUT) != 0) ++ goto done; ++ ++ /* for read, the data coming too fast, then CRC error ++ start DMA no business with CRC. */ ++ //init_completion(&host->xfer_done); ++ msdc_dma_start(host); ++ ++ spin_unlock(&host->lock); ++ if(!wait_for_completion_timeout(&host->xfer_done, DAT_TIMEOUT)){ ++ ERR_MSG("XXX CMD<%d> wait xfer_done<%d> timeout!!", cmd->opcode, data->blocks * data->blksz); ++ ERR_MSG(" DMA_SA = 0x%x", sdr_read32(MSDC_DMA_SA)); ++ ERR_MSG(" DMA_CA = 0x%x", sdr_read32(MSDC_DMA_CA)); ++ ERR_MSG(" DMA_CTRL = 0x%x", sdr_read32(MSDC_DMA_CTRL)); ++ ERR_MSG(" DMA_CFG = 0x%x", sdr_read32(MSDC_DMA_CFG)); ++ data->error = (unsigned int)-ETIMEDOUT; ++ ++ msdc_reset(); ++ msdc_clr_fifo(); ++ msdc_clr_int(); ++ } ++ spin_lock(&host->lock); ++ msdc_dma_stop(host); ++ } else { ++ /* Firstly: send command */ ++ if (msdc_do_command(host, cmd, 1, CMD_TIMEOUT) != 0) { ++ goto done; ++ } ++ ++ /* Secondly: pio data phase */ ++ if (read) { ++ if (msdc_pio_read(host, data)){ ++ goto done; ++ } ++ } else { ++ if (msdc_pio_write(host, data)) { ++ goto done; ++ } ++ } ++ ++ /* For write case: make sure contents in fifo flushed to device */ ++ if (!read) { ++ while (1) { ++ left=msdc_txfifocnt(); ++ if (left == 0) { ++ break; ++ } ++ if (msdc_pio_abort(host, data, jiffies + DAT_TIMEOUT)) { ++ break; ++ /* Fix me: what about if data error, when stop ? how to? */ ++ } ++ } ++ } else { ++ /* Fix me: read case: need to check CRC error */ ++ } ++ ++ /* For write case: SDCBUSY and Xfer_Comp will assert when DAT0 not busy. ++ For read case : SDCBUSY and Xfer_Comp will assert when last byte read out from FIFO. ++ */ ++ ++ /* try not to wait xfer_comp interrupt. ++ the next command will check SDC_BUSY. ++ SDC_BUSY means xfer_comp assert ++ */ ++ ++ } // PIO mode ++ ++ /* Last: stop transfer */ ++ if (data->stop){ ++ if (msdc_do_command(host, data->stop, 0, CMD_TIMEOUT) != 0) { ++ goto done; ++ } ++ } ++ } ++ ++done: ++ if (data != NULL) { ++ host->data = NULL; ++ host->dma_xfer = 0; ++ if (dma != 0) { ++ msdc_dma_off(); ++ host->dma.used_bd = 0; ++ host->dma.used_gpd = 0; ++ dma_unmap_sg(mmc_dev(mmc), data->sg, data->sg_len, dir); ++ } ++ host->blksz = 0; ++ ++#if 0 // don't stop twice! ++ if(host->hw->flags & MSDC_REMOVABLE && data->error) { ++ msdc_abort_data(host); ++ /* reset in IRQ, stop command has issued. -> No need */ ++ } ++#endif ++ ++ N_MSG(OPS, "CMD<%d> data<%s %s> blksz<%d> block<%d> error<%d>",cmd->opcode, (dma? "dma":"pio"), ++ (read ? "read ":"write") ,data->blksz, data->blocks, data->error); ++ } ++ ++#if 0 /* --- by chhung */ ++#if 1 ++ //if(host->id==1) { ++ if(send_type==SND_CMD) { ++ if(cmd->opcode == MMC_SEND_STATUS) { ++ if((cmd->resp[0] & CARD_READY_FOR_DATA) ||(CARD_CURRENT_STATE(cmd->resp[0]) != 7)){ ++ N_MSG(OPS,"disable clock, CMD13 IDLE"); ++ msdc_gate_clock(host->id); ++ } ++ } else { ++ N_MSG(OPS,"disable clock, CMD<%d>", cmd->opcode); ++ msdc_gate_clock(host->id); ++ } ++ } else { ++ if(read) { ++ N_MSG(OPS,"disable clock!!! Read CMD<%d>",cmd->opcode); ++ msdc_gate_clock(host->id); ++ } ++ } ++ //} ++#else ++ msdc_gate_clock(host->id); ++#endif ++#endif /* end of --- */ ++ ++ if (mrq->cmd->error) host->error = 0x001; ++ if (mrq->data && mrq->data->error) host->error |= 0x010; ++ if (mrq->stop && mrq->stop->error) host->error |= 0x100; ++ ++ //if (host->error) ERR_MSG("host->error<%d>", host->error); ++ ++ return host->error; ++} ++ ++static int msdc_app_cmd(struct mmc_host *mmc, struct msdc_host *host) ++{ ++ struct mmc_command cmd; ++ struct mmc_request mrq; ++ u32 err; ++ ++ memset(&cmd, 0, sizeof(struct mmc_command)); ++ cmd.opcode = MMC_APP_CMD; ++#if 0 /* bug: we meet mmc->card is null when ACMD6 */ ++ cmd.arg = mmc->card->rca << 16; ++#else ++ cmd.arg = host->app_cmd_arg; ++#endif ++ cmd.flags = MMC_RSP_SPI_R1 | MMC_RSP_R1 | MMC_CMD_AC; ++ ++ memset(&mrq, 0, sizeof(struct mmc_request)); ++ mrq.cmd = &cmd; cmd.mrq = &mrq; ++ cmd.data = NULL; ++ ++ err = msdc_do_command(host, &cmd, 0, CMD_TIMEOUT); ++ return err; ++} ++ ++static int msdc_tune_cmdrsp(struct msdc_host*host, struct mmc_command *cmd) ++{ ++ int result = -1; ++ u32 base = host->base; ++ u32 rsmpl, cur_rsmpl, orig_rsmpl; ++ u32 rrdly, cur_rrdly = 0xffffffff, orig_rrdly; ++ u32 skip = 1; ++ ++ /* ==== don't support 3.0 now ==== ++ 1: R_SMPL[1] ++ 2: PAD_CMD_RESP_RXDLY[26:22] ++ ==========================*/ ++ ++ // save the previous tune result ++ sdr_get_field(MSDC_IOCON, MSDC_IOCON_RSPL, orig_rsmpl); ++ sdr_get_field(MSDC_PAD_TUNE, MSDC_PAD_TUNE_CMDRRDLY, orig_rrdly); ++ ++ rrdly = 0; ++ do { ++ for (rsmpl = 0; rsmpl < 2; rsmpl++) { ++ /* Lv1: R_SMPL[1] */ ++ cur_rsmpl = (orig_rsmpl + rsmpl) % 2; ++ if (skip == 1) { ++ skip = 0; ++ continue; ++ } ++ sdr_set_field(MSDC_IOCON, MSDC_IOCON_RSPL, cur_rsmpl); ++ ++ if (host->app_cmd) { ++ result = msdc_app_cmd(host->mmc, host); ++ if (result) { ++ ERR_MSG("TUNE_CMD app_cmd<%d> failed: RESP_RXDLY<%d>,R_SMPL<%d>", ++ host->mrq->cmd->opcode, cur_rrdly, cur_rsmpl); ++ continue; ++ } ++ } ++ result = msdc_do_command(host, cmd, 0, CMD_TIMEOUT); // not tune. ++ ERR_MSG("TUNE_CMD<%d> %s PAD_CMD_RESP_RXDLY[26:22]<%d> R_SMPL[1]<%d>", cmd->opcode, ++ (result == 0) ? "PASS" : "FAIL", cur_rrdly, cur_rsmpl); ++ ++ if (result == 0) { ++ return 0; ++ } ++ if (result != (unsigned int)(-EIO)) { ++ ERR_MSG("TUNE_CMD<%d> Error<%d> not -EIO", cmd->opcode, result); ++ return result; ++ } ++ ++ /* should be EIO */ ++ if (sdr_read32(SDC_CMD) & 0x1800) { /* check if has data phase */ ++ msdc_abort_data(host); ++ } ++ } ++ ++ /* Lv2: PAD_CMD_RESP_RXDLY[26:22] */ ++ cur_rrdly = (orig_rrdly + rrdly + 1) % 32; ++ sdr_set_field(MSDC_PAD_TUNE, MSDC_PAD_TUNE_CMDRRDLY, cur_rrdly); ++ }while (++rrdly < 32); ++ ++ return result; ++} ++ ++/* Support SD2.0 Only */ ++static int msdc_tune_bread(struct mmc_host *mmc, struct mmc_request *mrq) ++{ ++ struct msdc_host *host = mmc_priv(mmc); ++ u32 base = host->base; ++ u32 ddr=0; ++ u32 dcrc=0; ++ u32 rxdly, cur_rxdly0, cur_rxdly1; ++ u32 dsmpl, cur_dsmpl, orig_dsmpl; ++ u32 cur_dat0, cur_dat1, cur_dat2, cur_dat3; ++ u32 cur_dat4, cur_dat5, cur_dat6, cur_dat7; ++ u32 orig_dat0, orig_dat1, orig_dat2, orig_dat3; ++ u32 orig_dat4, orig_dat5, orig_dat6, orig_dat7; ++ int result = -1; ++ u32 skip = 1; ++ ++ sdr_get_field(MSDC_IOCON, MSDC_IOCON_DSPL, orig_dsmpl); ++ ++ /* Tune Method 2. */ ++ sdr_set_field(MSDC_IOCON, MSDC_IOCON_DDLSEL, 1); ++ ++ rxdly = 0; ++ do { ++ for (dsmpl = 0; dsmpl < 2; dsmpl++) { ++ cur_dsmpl = (orig_dsmpl + dsmpl) % 2; ++ if (skip == 1) { ++ skip = 0; ++ continue; ++ } ++ sdr_set_field(MSDC_IOCON, MSDC_IOCON_DSPL, cur_dsmpl); ++ ++ if (host->app_cmd) { ++ result = msdc_app_cmd(host->mmc, host); ++ if (result) { ++ ERR_MSG("TUNE_BREAD app_cmd<%d> failed", host->mrq->cmd->opcode); ++ continue; ++ } ++ } ++ result = msdc_do_request(mmc,mrq); ++ ++ sdr_get_field(SDC_DCRC_STS, SDC_DCRC_STS_POS|SDC_DCRC_STS_NEG, dcrc); /* RO */ ++ if (!ddr) dcrc &= ~SDC_DCRC_STS_NEG; ++ ERR_MSG("TUNE_BREAD<%s> dcrc<0x%x> DATRDDLY0/1<0x%x><0x%x> dsmpl<0x%x>", ++ (result == 0 && dcrc == 0) ? "PASS" : "FAIL", dcrc, ++ sdr_read32(MSDC_DAT_RDDLY0), sdr_read32(MSDC_DAT_RDDLY1), cur_dsmpl); ++ ++ /* Fix me: result is 0, but dcrc is still exist */ ++ if (result == 0 && dcrc == 0) { ++ goto done; ++ } else { ++ /* there is a case: command timeout, and data phase not processed */ ++ if (mrq->data->error != 0 && mrq->data->error != (unsigned int)(-EIO)) { ++ ERR_MSG("TUNE_READ: result<0x%x> cmd_error<%d> data_error<%d>", ++ result, mrq->cmd->error, mrq->data->error); ++ goto done; ++ } ++ } ++ } ++ ++ cur_rxdly0 = sdr_read32(MSDC_DAT_RDDLY0); ++ cur_rxdly1 = sdr_read32(MSDC_DAT_RDDLY1); ++ ++ /* E1 ECO. YD: Reverse */ ++ if (sdr_read32(MSDC_ECO_VER) >= 4) { ++ orig_dat0 = (cur_rxdly0 >> 24) & 0x1F; ++ orig_dat1 = (cur_rxdly0 >> 16) & 0x1F; ++ orig_dat2 = (cur_rxdly0 >> 8) & 0x1F; ++ orig_dat3 = (cur_rxdly0 >> 0) & 0x1F; ++ orig_dat4 = (cur_rxdly1 >> 24) & 0x1F; ++ orig_dat5 = (cur_rxdly1 >> 16) & 0x1F; ++ orig_dat6 = (cur_rxdly1 >> 8) & 0x1F; ++ orig_dat7 = (cur_rxdly1 >> 0) & 0x1F; ++ } else { ++ orig_dat0 = (cur_rxdly0 >> 0) & 0x1F; ++ orig_dat1 = (cur_rxdly0 >> 8) & 0x1F; ++ orig_dat2 = (cur_rxdly0 >> 16) & 0x1F; ++ orig_dat3 = (cur_rxdly0 >> 24) & 0x1F; ++ orig_dat4 = (cur_rxdly1 >> 0) & 0x1F; ++ orig_dat5 = (cur_rxdly1 >> 8) & 0x1F; ++ orig_dat6 = (cur_rxdly1 >> 16) & 0x1F; ++ orig_dat7 = (cur_rxdly1 >> 24) & 0x1F; ++ } ++ ++ if (ddr) { ++ cur_dat0 = (dcrc & (1 << 0) || dcrc & (1 << 8)) ? ((orig_dat0 + 1) % 32) : orig_dat0; ++ cur_dat1 = (dcrc & (1 << 1) || dcrc & (1 << 9)) ? ((orig_dat1 + 1) % 32) : orig_dat1; ++ cur_dat2 = (dcrc & (1 << 2) || dcrc & (1 << 10)) ? ((orig_dat2 + 1) % 32) : orig_dat2; ++ cur_dat3 = (dcrc & (1 << 3) || dcrc & (1 << 11)) ? ((orig_dat3 + 1) % 32) : orig_dat3; ++ } else { ++ cur_dat0 = (dcrc & (1 << 0)) ? ((orig_dat0 + 1) % 32) : orig_dat0; ++ cur_dat1 = (dcrc & (1 << 1)) ? ((orig_dat1 + 1) % 32) : orig_dat1; ++ cur_dat2 = (dcrc & (1 << 2)) ? ((orig_dat2 + 1) % 32) : orig_dat2; ++ cur_dat3 = (dcrc & (1 << 3)) ? ((orig_dat3 + 1) % 32) : orig_dat3; ++ } ++ cur_dat4 = (dcrc & (1 << 4)) ? ((orig_dat4 + 1) % 32) : orig_dat4; ++ cur_dat5 = (dcrc & (1 << 5)) ? ((orig_dat5 + 1) % 32) : orig_dat5; ++ cur_dat6 = (dcrc & (1 << 6)) ? ((orig_dat6 + 1) % 32) : orig_dat6; ++ cur_dat7 = (dcrc & (1 << 7)) ? ((orig_dat7 + 1) % 32) : orig_dat7; ++ ++ cur_rxdly0 = (cur_dat0 << 24) | (cur_dat1 << 16) | (cur_dat2 << 8) | (cur_dat3 << 0); ++ cur_rxdly1 = (cur_dat4 << 24) | (cur_dat5 << 16) | (cur_dat6 << 8) | (cur_dat7 << 0); ++ ++ sdr_write32(MSDC_DAT_RDDLY0, cur_rxdly0); ++ sdr_write32(MSDC_DAT_RDDLY1, cur_rxdly1); ++ ++ } while (++rxdly < 32); ++ ++done: ++ return result; ++} ++ ++static int msdc_tune_bwrite(struct mmc_host *mmc,struct mmc_request *mrq) ++{ ++ struct msdc_host *host = mmc_priv(mmc); ++ u32 base = host->base; ++ ++ u32 wrrdly, cur_wrrdly = 0xffffffff, orig_wrrdly; ++ u32 dsmpl, cur_dsmpl, orig_dsmpl; ++ u32 rxdly, cur_rxdly0; ++ u32 orig_dat0, orig_dat1, orig_dat2, orig_dat3; ++ u32 cur_dat0, cur_dat1, cur_dat2, cur_dat3; ++ int result = -1; ++ u32 skip = 1; ++ ++ // MSDC_IOCON_DDR50CKD need to check. [Fix me] ++ ++ sdr_get_field(MSDC_PAD_TUNE, MSDC_PAD_TUNE_DATWRDLY, orig_wrrdly); ++ sdr_get_field(MSDC_IOCON, MSDC_IOCON_DSPL, orig_dsmpl ); ++ ++ /* Tune Method 2. just DAT0 */ ++ sdr_set_field(MSDC_IOCON, MSDC_IOCON_DDLSEL, 1); ++ cur_rxdly0 = sdr_read32(MSDC_DAT_RDDLY0); ++ ++ /* E1 ECO. YD: Reverse */ ++ if (sdr_read32(MSDC_ECO_VER) >= 4) { ++ orig_dat0 = (cur_rxdly0 >> 24) & 0x1F; ++ orig_dat1 = (cur_rxdly0 >> 16) & 0x1F; ++ orig_dat2 = (cur_rxdly0 >> 8) & 0x1F; ++ orig_dat3 = (cur_rxdly0 >> 0) & 0x1F; ++ } else { ++ orig_dat0 = (cur_rxdly0 >> 0) & 0x1F; ++ orig_dat1 = (cur_rxdly0 >> 8) & 0x1F; ++ orig_dat2 = (cur_rxdly0 >> 16) & 0x1F; ++ orig_dat3 = (cur_rxdly0 >> 24) & 0x1F; ++ } ++ ++ rxdly = 0; ++ do { ++ wrrdly = 0; ++ do { ++ for (dsmpl = 0; dsmpl < 2; dsmpl++) { ++ cur_dsmpl = (orig_dsmpl + dsmpl) % 2; ++ if (skip == 1) { ++ skip = 0; ++ continue; ++ } ++ sdr_set_field(MSDC_IOCON, MSDC_IOCON_DSPL, cur_dsmpl); ++ ++ if (host->app_cmd) { ++ result = msdc_app_cmd(host->mmc, host); ++ if (result) { ++ ERR_MSG("TUNE_BWRITE app_cmd<%d> failed", host->mrq->cmd->opcode); ++ continue; ++ } ++ } ++ result = msdc_do_request(mmc,mrq); ++ ++ ERR_MSG("TUNE_BWRITE<%s> DSPL<%d> DATWRDLY<%d> MSDC_DAT_RDDLY0<0x%x>", ++ result == 0 ? "PASS" : "FAIL", ++ cur_dsmpl, cur_wrrdly, cur_rxdly0); ++ ++ if (result == 0) { ++ goto done; ++ } ++ else { ++ /* there is a case: command timeout, and data phase not processed */ ++ if (mrq->data->error != (unsigned int)(-EIO)) { ++ ERR_MSG("TUNE_READ: result<0x%x> cmd_error<%d> data_error<%d>", ++ result, mrq->cmd->error, mrq->data->error); ++ goto done; ++ } ++ } ++ } ++ cur_wrrdly = (orig_wrrdly + wrrdly + 1) % 32; ++ sdr_set_field(MSDC_PAD_TUNE, MSDC_PAD_TUNE_DATWRDLY, cur_wrrdly); ++ } while (++wrrdly < 32); ++ ++ cur_dat0 = (orig_dat0 + rxdly) % 32; /* only adjust bit-1 for crc */ ++ cur_dat1 = orig_dat1; ++ cur_dat2 = orig_dat2; ++ cur_dat3 = orig_dat3; ++ ++ cur_rxdly0 = (cur_dat0 << 24) | (cur_dat1 << 16) | (cur_dat2 << 8) | (cur_dat3 << 0); ++ sdr_write32(MSDC_DAT_RDDLY0, cur_rxdly0); ++ } while (++rxdly < 32); ++ ++done: ++ return result; ++} ++ ++static int msdc_get_card_status(struct mmc_host *mmc, struct msdc_host *host, u32 *status) ++{ ++ struct mmc_command cmd; ++ struct mmc_request mrq; ++ u32 err; ++ ++ memset(&cmd, 0, sizeof(struct mmc_command)); ++ cmd.opcode = MMC_SEND_STATUS; ++ if (mmc->card) { ++ cmd.arg = mmc->card->rca << 16; ++ } else { ++ ERR_MSG("cmd13 mmc card is null"); ++ cmd.arg = host->app_cmd_arg; ++ } ++ cmd.flags = MMC_RSP_SPI_R2 | MMC_RSP_R1 | MMC_CMD_AC; ++ ++ memset(&mrq, 0, sizeof(struct mmc_request)); ++ mrq.cmd = &cmd; cmd.mrq = &mrq; ++ cmd.data = NULL; ++ ++ err = msdc_do_command(host, &cmd, 1, CMD_TIMEOUT); ++ ++ if (status) { ++ *status = cmd.resp[0]; ++ } ++ ++ return err; ++} ++ ++static int msdc_check_busy(struct mmc_host *mmc, struct msdc_host *host) ++{ ++ u32 err = 0; ++ u32 status = 0; ++ ++ do { ++ err = msdc_get_card_status(mmc, host, &status); ++ if (err) return err; ++ /* need cmd12? */ ++ ERR_MSG("cmd<13> resp<0x%x>", status); ++ } while (R1_CURRENT_STATE(status) == 7); ++ ++ return err; ++} ++ ++/* failed when msdc_do_request */ ++static int msdc_tune_request(struct mmc_host *mmc, struct mmc_request *mrq) ++{ ++ struct msdc_host *host = mmc_priv(mmc); ++ struct mmc_command *cmd; ++ struct mmc_data *data; ++ //u32 base = host->base; ++ int ret=0, read; ++ ++ cmd = mrq->cmd; ++ data = mrq->cmd->data; ++ ++ read = data->flags & MMC_DATA_READ ? 1 : 0; ++ ++ if (read) { ++ if (data->error == (unsigned int)(-EIO)) { ++ ret = msdc_tune_bread(mmc,mrq); ++ } ++ } else { ++ ret = msdc_check_busy(mmc, host); ++ if (ret){ ++ ERR_MSG("XXX cmd13 wait program done failed"); ++ return ret; ++ } ++ /* CRC and TO */ ++ /* Fix me: don't care card status? */ ++ ret = msdc_tune_bwrite(mmc,mrq); ++ } ++ ++ return ret; ++} ++ ++/* ops.request */ ++static void msdc_ops_request(struct mmc_host *mmc,struct mmc_request *mrq) ++{ ++ struct msdc_host *host = mmc_priv(mmc); ++ ++ //=== for sdio profile === ++#if 0 /* --- by chhung */ ++ u32 old_H32, old_L32, new_H32, new_L32; ++ u32 ticks = 0, opcode = 0, sizes = 0, bRx = 0; ++#endif /* end of --- */ ++ ++ if(host->mrq){ ++ ERR_MSG("XXX host->mrq<0x%.8x>", (int)host->mrq); ++ BUG(); ++ } ++ ++ if (!is_card_present(host) || host->power_mode == MMC_POWER_OFF) { ++ ERR_MSG("cmd<%d> card<%d> power<%d>", mrq->cmd->opcode, is_card_present(host), host->power_mode); ++ mrq->cmd->error = (unsigned int)-ENOMEDIUM; ++ ++#if 1 ++ mrq->done(mrq); // call done directly. ++#else ++ mrq->cmd->retries = 0; // please don't retry. ++ mmc_request_done(mmc, mrq); ++#endif ++ ++ return; ++ } ++ ++ /* start to process */ ++ spin_lock(&host->lock); ++#if 0 /* --- by chhung */ ++ if (sdio_pro_enable) { //=== for sdio profile === ++ if (mrq->cmd->opcode == 52 || mrq->cmd->opcode == 53) { ++ GPT_GetCounter64(&old_L32, &old_H32); ++ } ++ } ++#endif /* end of --- */ ++ ++ host->mrq = mrq; ++ ++ if (msdc_do_request(mmc,mrq)) { ++ if(host->hw->flags & MSDC_REMOVABLE && mrq->data && mrq->data->error) { ++ //msdc_tune_request(mmc,mrq); ++ } ++ } ++ ++ /* ==== when request done, check if app_cmd ==== */ ++ if (mrq->cmd->opcode == MMC_APP_CMD) { ++ host->app_cmd = 1; ++ host->app_cmd_arg = mrq->cmd->arg; /* save the RCA */ ++ } else { ++ host->app_cmd = 0; ++ //host->app_cmd_arg = 0; ++ } ++ ++ host->mrq = NULL; ++ ++#if 0 /* --- by chhung */ ++ //=== for sdio profile === ++ if (sdio_pro_enable) { ++ if (mrq->cmd->opcode == 52 || mrq->cmd->opcode == 53) { ++ GPT_GetCounter64(&new_L32, &new_H32); ++ ticks = msdc_time_calc(old_L32, old_H32, new_L32, new_H32); ++ ++ opcode = mrq->cmd->opcode; ++ if (mrq->cmd->data) { ++ sizes = mrq->cmd->data->blocks * mrq->cmd->data->blksz; ++ bRx = mrq->cmd->data->flags & MMC_DATA_READ ? 1 : 0 ; ++ } else { ++ bRx = mrq->cmd->arg & 0x80000000 ? 1 : 0; ++ } ++ ++ if (!mrq->cmd->error) { ++ msdc_performance(opcode, sizes, bRx, ticks); ++ } ++ } ++ } ++#endif /* end of --- */ ++ spin_unlock(&host->lock); ++ ++ mmc_request_done(mmc, mrq); ++ ++ return; ++} ++ ++/* called by ops.set_ios */ ++static void msdc_set_buswidth(struct msdc_host *host, u32 width) ++{ ++ u32 base = host->base; ++ u32 val = sdr_read32(SDC_CFG); ++ ++ val &= ~SDC_CFG_BUSWIDTH; ++ ++ switch (width) { ++ default: ++ case MMC_BUS_WIDTH_1: ++ width = 1; ++ val |= (MSDC_BUS_1BITS << 16); ++ break; ++ case MMC_BUS_WIDTH_4: ++ val |= (MSDC_BUS_4BITS << 16); ++ break; ++ case MMC_BUS_WIDTH_8: ++ val |= (MSDC_BUS_8BITS << 16); ++ break; ++ } ++ ++ sdr_write32(SDC_CFG, val); ++ ++ N_MSG(CFG, "Bus Width = %d", width); ++} ++ ++/* ops.set_ios */ ++static void msdc_ops_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) ++{ ++ struct msdc_host *host = mmc_priv(mmc); ++ struct msdc_hw *hw=host->hw; ++ u32 base = host->base; ++ u32 ddr = 0; ++ ++#ifdef MT6575_SD_DEBUG ++ static char *vdd[] = { ++ "1.50v", "1.55v", "1.60v", "1.65v", "1.70v", "1.80v", "1.90v", ++ "2.00v", "2.10v", "2.20v", "2.30v", "2.40v", "2.50v", "2.60v", ++ "2.70v", "2.80v", "2.90v", "3.00v", "3.10v", "3.20v", "3.30v", ++ "3.40v", "3.50v", "3.60v" ++ }; ++ static char *power_mode[] = { ++ "OFF", "UP", "ON" ++ }; ++ static char *bus_mode[] = { ++ "UNKNOWN", "OPENDRAIN", "PUSHPULL" ++ }; ++ static char *timing[] = { ++ "LEGACY", "MMC_HS", "SD_HS" ++ }; ++ ++ printk("SET_IOS: CLK(%dkHz), BUS(%s), BW(%u), PWR(%s), VDD(%s), TIMING(%s)", ++ ios->clock / 1000, bus_mode[ios->bus_mode], ++ (ios->bus_width == MMC_BUS_WIDTH_4) ? 4 : 1, ++ power_mode[ios->power_mode], vdd[ios->vdd], timing[ios->timing]); ++#endif ++ ++ msdc_set_buswidth(host, ios->bus_width); ++ ++ /* Power control ??? */ ++ switch (ios->power_mode) { ++ case MMC_POWER_OFF: ++ case MMC_POWER_UP: ++ // msdc_set_power_mode(host, ios->power_mode); /* --- by chhung */ ++ break; ++ case MMC_POWER_ON: ++ host->power_mode = MMC_POWER_ON; ++ break; ++ default: ++ break; ++ } ++ ++ /* Clock control */ ++ if (host->mclk != ios->clock) { ++ if(ios->clock > 25000000) { ++ //if (!(host->hw->flags & MSDC_REMOVABLE)) { ++ INIT_MSG("SD data latch edge<%d>", hw->data_edge); ++ sdr_set_field(MSDC_IOCON, MSDC_IOCON_RSPL, hw->cmd_edge); ++ sdr_set_field(MSDC_IOCON, MSDC_IOCON_DSPL, hw->data_edge); ++ //} /* for tuning debug */ ++ } else { /* default value */ ++ sdr_write32(MSDC_IOCON, 0x00000000); ++ // sdr_write32(MSDC_DAT_RDDLY0, 0x00000000); ++ sdr_write32(MSDC_DAT_RDDLY0, 0x10101010); // for MT7620 E2 and afterward ++ sdr_write32(MSDC_DAT_RDDLY1, 0x00000000); ++ // sdr_write32(MSDC_PAD_TUNE, 0x00000000); ++ sdr_write32(MSDC_PAD_TUNE, 0x84101010); // for MT7620 E2 and afterward ++ } ++ msdc_set_mclk(host, ddr, ios->clock); ++ } ++} ++ ++/* ops.get_ro */ ++static int msdc_ops_get_ro(struct mmc_host *mmc) ++{ ++ struct msdc_host *host = mmc_priv(mmc); ++ u32 base = host->base; ++ unsigned long flags; ++ int ro = 0; ++ ++ if (host->hw->flags & MSDC_WP_PIN_EN) { /* set for card */ ++ spin_lock_irqsave(&host->lock, flags); ++ ro = (sdr_read32(MSDC_PS) >> 31); ++ spin_unlock_irqrestore(&host->lock, flags); ++ } ++ return ro; ++} ++ ++/* ops.get_cd */ ++static int msdc_ops_get_cd(struct mmc_host *mmc) ++{ ++ struct msdc_host *host = mmc_priv(mmc); ++ u32 base = host->base; ++ unsigned long flags; ++ int present = 1; ++ ++ /* for sdio, MSDC_REMOVABLE not set, always return 1 */ ++ if (!(host->hw->flags & MSDC_REMOVABLE)) { ++ /* For sdio, read H/W always get<1>, but may timeout some times */ ++#if 1 ++ host->card_inserted = 1; ++ return 1; ++#else ++ host->card_inserted = (host->pm_state.event == PM_EVENT_USER_RESUME) ? 1 : 0; ++ INIT_MSG("sdio ops_get_cd<%d>", host->card_inserted); ++ return host->card_inserted; ++#endif ++ } ++ ++ /* MSDC_CD_PIN_EN set for card */ ++ if (host->hw->flags & MSDC_CD_PIN_EN) { ++ spin_lock_irqsave(&host->lock, flags); ++#if 0 ++ present = host->card_inserted; /* why not read from H/W: Fix me*/ ++#else ++ // CD ++ if (cd_active_low) ++ present = (sdr_read32(MSDC_PS) & MSDC_PS_CDSTS) ? 0 : 1; ++ else ++ present = (sdr_read32(MSDC_PS) & MSDC_PS_CDSTS) ? 1 : 0; ++ host->card_inserted = present; ++#endif ++ spin_unlock_irqrestore(&host->lock, flags); ++ } else { ++ present = 0; /* TODO? Check DAT3 pins for card detection */ ++ } ++ ++ INIT_MSG("ops_get_cd return<%d>", present); ++ return present; ++} ++ ++/* ops.enable_sdio_irq */ ++static void msdc_ops_enable_sdio_irq(struct mmc_host *mmc, int enable) ++{ ++ struct msdc_host *host = mmc_priv(mmc); ++ struct msdc_hw *hw = host->hw; ++ u32 base = host->base; ++ u32 tmp; ++ ++ if (hw->flags & MSDC_EXT_SDIO_IRQ) { /* yes for sdio */ ++ if (enable) { ++ hw->enable_sdio_eirq(); /* combo_sdio_enable_eirq */ ++ } else { ++ hw->disable_sdio_eirq(); /* combo_sdio_disable_eirq */ ++ } ++ } else { ++ ERR_MSG("XXX "); /* so never enter here */ ++ tmp = sdr_read32(SDC_CFG); ++ /* FIXME. Need to interrupt gap detection */ ++ if (enable) { ++ tmp |= (SDC_CFG_SDIOIDE | SDC_CFG_SDIOINTWKUP); ++ } else { ++ tmp &= ~(SDC_CFG_SDIOIDE | SDC_CFG_SDIOINTWKUP); ++ } ++ sdr_write32(SDC_CFG, tmp); ++ } ++} ++ ++static struct mmc_host_ops mt_msdc_ops = { ++ .request = msdc_ops_request, ++ .set_ios = msdc_ops_set_ios, ++ .get_ro = msdc_ops_get_ro, ++ .get_cd = msdc_ops_get_cd, ++ .enable_sdio_irq = msdc_ops_enable_sdio_irq, ++}; ++ ++/*--------------------------------------------------------------------------*/ ++/* interrupt handler */ ++/*--------------------------------------------------------------------------*/ ++static irqreturn_t msdc_irq(int irq, void *dev_id) ++{ ++ struct msdc_host *host = (struct msdc_host *)dev_id; ++ struct mmc_data *data = host->data; ++ struct mmc_command *cmd = host->cmd; ++ u32 base = host->base; ++ ++ u32 cmdsts = MSDC_INT_RSPCRCERR | MSDC_INT_CMDTMO | MSDC_INT_CMDRDY | ++ MSDC_INT_ACMDCRCERR | MSDC_INT_ACMDTMO | MSDC_INT_ACMDRDY | ++ MSDC_INT_ACMD19_DONE; ++ u32 datsts = MSDC_INT_DATCRCERR |MSDC_INT_DATTMO; ++ ++ u32 intsts = sdr_read32(MSDC_INT); ++ u32 inten = sdr_read32(MSDC_INTEN); inten &= intsts; ++ ++ sdr_write32(MSDC_INT, intsts); /* clear interrupts */ ++ /* MSG will cause fatal error */ ++ ++ /* card change interrupt */ ++ if (intsts & MSDC_INT_CDSC){ ++ if (mtk_sw_poll) ++ return IRQ_HANDLED; ++ IRQ_MSG("MSDC_INT_CDSC irq<0x%.8x>", intsts); ++#if 0 /* ---/+++ by chhung: fix slot mechanical bounce issue */ ++ tasklet_hi_schedule(&host->card_tasklet); ++#else ++ schedule_delayed_work(&host->card_delaywork, HZ); ++#endif ++ /* tuning when plug card ? */ ++ } ++ ++ /* sdio interrupt */ ++ if (intsts & MSDC_INT_SDIOIRQ){ ++ IRQ_MSG("XXX MSDC_INT_SDIOIRQ"); /* seems not sdio irq */ ++ //mmc_signal_sdio_irq(host->mmc); ++ } ++ ++ /* transfer complete interrupt */ ++ if (data != NULL) { ++ if (inten & MSDC_INT_XFER_COMPL) { ++ data->bytes_xfered = host->dma.xfersz; ++ complete(&host->xfer_done); ++ } ++ ++ if (intsts & datsts) { ++ /* do basic reset, or stop command will sdc_busy */ ++ msdc_reset(); ++ msdc_clr_fifo(); ++ msdc_clr_int(); ++ atomic_set(&host->abort, 1); /* For PIO mode exit */ ++ ++ if (intsts & MSDC_INT_DATTMO){ ++ IRQ_MSG("XXX CMD<%d> MSDC_INT_DATTMO", host->mrq->cmd->opcode); ++ data->error = (unsigned int)-ETIMEDOUT; ++ } ++ else if (intsts & MSDC_INT_DATCRCERR){ ++ IRQ_MSG("XXX CMD<%d> MSDC_INT_DATCRCERR, SDC_DCRC_STS<0x%x>", host->mrq->cmd->opcode, sdr_read32(SDC_DCRC_STS)); ++ data->error = (unsigned int)-EIO; ++ } ++ ++ //if(sdr_read32(MSDC_INTEN) & MSDC_INT_XFER_COMPL) { ++ if (host->dma_xfer) { ++ complete(&host->xfer_done); /* Read CRC come fast, XFER_COMPL not enabled */ ++ } /* PIO mode can't do complete, because not init */ ++ } ++ } ++ ++ /* command interrupts */ ++ if ((cmd != NULL) && (intsts & cmdsts)) { ++ if ((intsts & MSDC_INT_CMDRDY) || (intsts & MSDC_INT_ACMDRDY) || ++ (intsts & MSDC_INT_ACMD19_DONE)) { ++ u32 *rsp = &cmd->resp[0]; ++ ++ switch (host->cmd_rsp) { ++ case RESP_NONE: ++ break; ++ case RESP_R2: ++ *rsp++ = sdr_read32(SDC_RESP3); *rsp++ = sdr_read32(SDC_RESP2); ++ *rsp++ = sdr_read32(SDC_RESP1); *rsp++ = sdr_read32(SDC_RESP0); ++ break; ++ default: /* Response types 1, 3, 4, 5, 6, 7(1b) */ ++ if ((intsts & MSDC_INT_ACMDRDY) || (intsts & MSDC_INT_ACMD19_DONE)) { ++ *rsp = sdr_read32(SDC_ACMD_RESP); ++ } else { ++ *rsp = sdr_read32(SDC_RESP0); ++ } ++ break; ++ } ++ } else if ((intsts & MSDC_INT_RSPCRCERR) || (intsts & MSDC_INT_ACMDCRCERR)) { ++ if(intsts & MSDC_INT_ACMDCRCERR){ ++ IRQ_MSG("XXX CMD<%d> MSDC_INT_ACMDCRCERR",cmd->opcode); ++ } ++ else { ++ IRQ_MSG("XXX CMD<%d> MSDC_INT_RSPCRCERR",cmd->opcode); ++ } ++ cmd->error = (unsigned int)-EIO; ++ } else if ((intsts & MSDC_INT_CMDTMO) || (intsts & MSDC_INT_ACMDTMO)) { ++ if(intsts & MSDC_INT_ACMDTMO){ ++ IRQ_MSG("XXX CMD<%d> MSDC_INT_ACMDTMO",cmd->opcode); ++ } ++ else { ++ IRQ_MSG("XXX CMD<%d> MSDC_INT_CMDTMO",cmd->opcode); ++ } ++ cmd->error = (unsigned int)-ETIMEDOUT; ++ msdc_reset(); ++ msdc_clr_fifo(); ++ msdc_clr_int(); ++ } ++ complete(&host->cmd_done); ++ } ++ ++ /* mmc irq interrupts */ ++ if (intsts & MSDC_INT_MMCIRQ) { ++ printk(KERN_INFO "msdc[%d] MMCIRQ: SDC_CSTS=0x%.8x\r\n", host->id, sdr_read32(SDC_CSTS)); ++ } ++ ++#ifdef MT6575_SD_DEBUG ++ { ++ msdc_int_reg *int_reg = (msdc_int_reg*)&intsts; ++ N_MSG(INT, "IRQ_EVT(0x%x): MMCIRQ(%d) CDSC(%d), ACRDY(%d), ACTMO(%d), ACCRE(%d) AC19DN(%d)", ++ intsts, ++ int_reg->mmcirq, ++ int_reg->cdsc, ++ int_reg->atocmdrdy, ++ int_reg->atocmdtmo, ++ int_reg->atocmdcrc, ++ int_reg->atocmd19done); ++ N_MSG(INT, "IRQ_EVT(0x%x): SDIO(%d) CMDRDY(%d), CMDTMO(%d), RSPCRC(%d), CSTA(%d)", ++ intsts, ++ int_reg->sdioirq, ++ int_reg->cmdrdy, ++ int_reg->cmdtmo, ++ int_reg->rspcrc, ++ int_reg->csta); ++ N_MSG(INT, "IRQ_EVT(0x%x): XFCMP(%d) DXDONE(%d), DATTMO(%d), DATCRC(%d), DMAEMP(%d)", ++ intsts, ++ int_reg->xfercomp, ++ int_reg->dxferdone, ++ int_reg->dattmo, ++ int_reg->datcrc, ++ int_reg->dmaqempty); ++ ++ } ++#endif ++ ++ return IRQ_HANDLED; ++} ++ ++/*--------------------------------------------------------------------------*/ ++/* platform_driver members */ ++/*--------------------------------------------------------------------------*/ ++/* called by msdc_drv_probe/remove */ ++static void msdc_enable_cd_irq(struct msdc_host *host, int enable) ++{ ++ struct msdc_hw *hw = host->hw; ++ u32 base = host->base; ++ ++ /* for sdio, not set */ ++ if ((hw->flags & MSDC_CD_PIN_EN) == 0) { ++ /* Pull down card detection pin since it is not avaiable */ ++ /* ++ if (hw->config_gpio_pin) ++ hw->config_gpio_pin(MSDC_CD_PIN, GPIO_PULL_DOWN); ++ */ ++ sdr_clr_bits(MSDC_PS, MSDC_PS_CDEN); ++ sdr_clr_bits(MSDC_INTEN, MSDC_INTEN_CDSC); ++ sdr_clr_bits(SDC_CFG, SDC_CFG_INSWKUP); ++ return; ++ } ++ ++ N_MSG(CFG, "CD IRQ Eanable(%d)", enable); ++ ++ if (enable) { ++ if (hw->enable_cd_eirq) { /* not set, never enter */ ++ hw->enable_cd_eirq(); ++ } else { ++ /* card detection circuit relies on the core power so that the core power ++ * shouldn't be turned off. Here adds a reference count to keep ++ * the core power alive. ++ */ ++ //msdc_vcore_on(host); //did in msdc_init_hw() ++ ++ if (hw->config_gpio_pin) /* NULL */ ++ hw->config_gpio_pin(MSDC_CD_PIN, GPIO_PULL_UP); ++ ++ sdr_set_field(MSDC_PS, MSDC_PS_CDDEBOUNCE, DEFAULT_DEBOUNCE); ++ sdr_set_bits(MSDC_PS, MSDC_PS_CDEN); ++ sdr_set_bits(MSDC_INTEN, MSDC_INTEN_CDSC); ++ sdr_set_bits(SDC_CFG, SDC_CFG_INSWKUP); /* not in document! Fix me */ ++ } ++ } else { ++ if (hw->disable_cd_eirq) { ++ hw->disable_cd_eirq(); ++ } else { ++ if (hw->config_gpio_pin) /* NULL */ ++ hw->config_gpio_pin(MSDC_CD_PIN, GPIO_PULL_DOWN); ++ ++ sdr_clr_bits(SDC_CFG, SDC_CFG_INSWKUP); ++ sdr_clr_bits(MSDC_PS, MSDC_PS_CDEN); ++ sdr_clr_bits(MSDC_INTEN, MSDC_INTEN_CDSC); ++ ++ /* Here decreases a reference count to core power since card ++ * detection circuit is shutdown. ++ */ ++ //msdc_vcore_off(host); ++ } ++ } ++} ++ ++/* called by msdc_drv_probe */ ++static void msdc_init_hw(struct msdc_host *host) ++{ ++ u32 base = host->base; ++ struct msdc_hw *hw = host->hw; ++ ++#ifdef MT6575_SD_DEBUG ++ msdc_reg[host->id] = (struct msdc_regs *)host->base; ++#endif ++ ++ /* Power on */ ++#if 0 /* --- by chhung */ ++ msdc_vcore_on(host); ++ msdc_pin_reset(host, MSDC_PIN_PULL_UP); ++ msdc_select_clksrc(host, hw->clk_src); ++ enable_clock(PERI_MSDC0_PDN + host->id, "SD"); ++ msdc_vdd_on(host); ++#endif /* end of --- */ ++ /* Configure to MMC/SD mode */ ++ sdr_set_field(MSDC_CFG, MSDC_CFG_MODE, MSDC_SDMMC); ++ ++ /* Reset */ ++ msdc_reset(); ++ msdc_clr_fifo(); ++ ++ /* Disable card detection */ ++ sdr_clr_bits(MSDC_PS, MSDC_PS_CDEN); ++ ++ /* Disable and clear all interrupts */ ++ sdr_clr_bits(MSDC_INTEN, sdr_read32(MSDC_INTEN)); ++ sdr_write32(MSDC_INT, sdr_read32(MSDC_INT)); ++ ++#if 1 ++ /* reset tuning parameter */ ++ sdr_write32(MSDC_PAD_CTL0, 0x00090000); ++ sdr_write32(MSDC_PAD_CTL1, 0x000A0000); ++ sdr_write32(MSDC_PAD_CTL2, 0x000A0000); ++ // sdr_write32(MSDC_PAD_TUNE, 0x00000000); ++ sdr_write32(MSDC_PAD_TUNE, 0x84101010); // for MT7620 E2 and afterward ++ // sdr_write32(MSDC_DAT_RDDLY0, 0x00000000); ++ sdr_write32(MSDC_DAT_RDDLY0, 0x10101010); // for MT7620 E2 and afterward ++ sdr_write32(MSDC_DAT_RDDLY1, 0x00000000); ++ sdr_write32(MSDC_IOCON, 0x00000000); ++#if 0 // use MT7620 default value: 0x403c004f ++ sdr_write32(MSDC_PATCH_BIT0, 0x003C000F); /* bit0 modified: Rx Data Clock Source: 1 -> 2.0*/ ++#endif ++ ++ if (sdr_read32(MSDC_ECO_VER) >= 4) { ++ if (host->id == 1) { ++ sdr_set_field(MSDC_PATCH_BIT1, MSDC_PATCH_BIT1_WRDAT_CRCS, 1); ++ sdr_set_field(MSDC_PATCH_BIT1, MSDC_PATCH_BIT1_CMD_RSP, 1); ++ ++ /* internal clock: latch read data */ ++ sdr_set_bits(MSDC_PATCH_BIT0, MSDC_PATCH_BIT_CKGEN_CK); ++ } ++ } ++#endif ++ ++ /* for safety, should clear SDC_CFG.SDIO_INT_DET_EN & set SDC_CFG.SDIO in ++ pre-loader,uboot,kernel drivers. and SDC_CFG.SDIO_INT_DET_EN will be only ++ set when kernel driver wants to use SDIO bus interrupt */ ++ /* Configure to enable SDIO mode. it's must otherwise sdio cmd5 failed */ ++ sdr_set_bits(SDC_CFG, SDC_CFG_SDIO); ++ ++ /* disable detect SDIO device interupt function */ ++ sdr_clr_bits(SDC_CFG, SDC_CFG_SDIOIDE); ++ ++ /* eneable SMT for glitch filter */ ++ sdr_set_bits(MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKSMT); ++ sdr_set_bits(MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDSMT); ++ sdr_set_bits(MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATSMT); ++ ++#if 1 ++ /* set clk, cmd, dat pad driving */ ++ sdr_set_field(MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKDRVN, hw->clk_drv); ++ sdr_set_field(MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKDRVP, hw->clk_drv); ++ sdr_set_field(MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDDRVN, hw->cmd_drv); ++ sdr_set_field(MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDDRVP, hw->cmd_drv); ++ sdr_set_field(MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATDRVN, hw->dat_drv); ++ sdr_set_field(MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATDRVP, hw->dat_drv); ++#else ++ sdr_set_field(MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKDRVN, 0); ++ sdr_set_field(MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKDRVP, 0); ++ sdr_set_field(MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDDRVN, 0); ++ sdr_set_field(MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDDRVP, 0); ++ sdr_set_field(MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATDRVN, 0); ++ sdr_set_field(MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATDRVP, 0); ++#endif ++ ++ /* set sampling edge */ ++ ++ /* write crc timeout detection */ ++ sdr_set_field(MSDC_PATCH_BIT0, 1 << 30, 1); ++ ++ /* Configure to default data timeout */ ++ sdr_set_field(SDC_CFG, SDC_CFG_DTOC, DEFAULT_DTOC); ++ ++ msdc_set_buswidth(host, MMC_BUS_WIDTH_1); ++ ++ N_MSG(FUC, "init hardware done!"); ++} ++ ++/* called by msdc_drv_remove */ ++static void msdc_deinit_hw(struct msdc_host *host) ++{ ++ u32 base = host->base; ++ ++ /* Disable and clear all interrupts */ ++ sdr_clr_bits(MSDC_INTEN, sdr_read32(MSDC_INTEN)); ++ sdr_write32(MSDC_INT, sdr_read32(MSDC_INT)); ++ ++ /* Disable card detection */ ++ msdc_enable_cd_irq(host, 0); ++ // msdc_set_power_mode(host, MMC_POWER_OFF); /* make sure power down */ /* --- by chhung */ ++} ++ ++/* init gpd and bd list in msdc_drv_probe */ ++static void msdc_init_gpd_bd(struct msdc_host *host, struct msdc_dma *dma) ++{ ++ gpd_t *gpd = dma->gpd; ++ bd_t *bd = dma->bd; ++ bd_t *ptr, *prev; ++ ++ /* we just support one gpd */ ++ int bdlen = MAX_BD_PER_GPD; ++ ++ /* init the 2 gpd */ ++ memset(gpd, 0, sizeof(gpd_t) * 2); ++ //gpd->next = (void *)virt_to_phys(gpd + 1); /* pointer to a null gpd, bug! kmalloc <-> virt_to_phys */ ++ //gpd->next = (dma->gpd_addr + 1); /* bug */ ++ gpd->next = (void *)((u32)dma->gpd_addr + sizeof(gpd_t)); ++ ++ //gpd->intr = 0; ++ gpd->bdp = 1; /* hwo, cs, bd pointer */ ++ //gpd->ptr = (void*)virt_to_phys(bd); ++ gpd->ptr = (void *)dma->bd_addr; /* physical address */ ++ ++ memset(bd, 0, sizeof(bd_t) * bdlen); ++ ptr = bd + bdlen - 1; ++ //ptr->eol = 1; /* 0 or 1 [Fix me]*/ ++ //ptr->next = 0; ++ ++ while (ptr != bd) { ++ prev = ptr - 1; ++ prev->next = (void *)(dma->bd_addr + sizeof(bd_t) *(ptr - bd)); ++ ptr = prev; ++ } ++} ++ ++static int msdc_drv_probe(struct platform_device *pdev) ++{ ++ struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ __iomem void *base; ++ struct mmc_host *mmc; ++ struct resource *mem; ++ struct msdc_host *host; ++ struct msdc_hw *hw; ++ int ret, irq; ++ ++ pdev->dev.platform_data = &msdc0_hw; ++ ++ /* Allocate MMC host for this device */ ++ mmc = mmc_alloc_host(sizeof(struct msdc_host), &pdev->dev); ++ if (!mmc) return -ENOMEM; ++ ++ hw = (struct msdc_hw*)pdev->dev.platform_data; ++ mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ irq = platform_get_irq(pdev, 0); ++ ++ //BUG_ON((!hw) || (!mem) || (irq < 0)); /* --- by chhung */ ++ ++ base = devm_ioremap_resource(&pdev->dev, res); ++ if (IS_ERR(base)) ++ return PTR_ERR(base); ++ ++ /* Set host parameters to mmc */ ++ mmc->ops = &mt_msdc_ops; ++ mmc->f_min = HOST_MIN_MCLK; ++ mmc->f_max = HOST_MAX_MCLK; ++ mmc->ocr_avail = MSDC_OCR_AVAIL; ++ ++ /* For sd card: MSDC_SYS_SUSPEND | MSDC_WP_PIN_EN | MSDC_CD_PIN_EN | MSDC_REMOVABLE | MSDC_HIGHSPEED, ++ For sdio : MSDC_EXT_SDIO_IRQ | MSDC_HIGHSPEED */ ++ if (hw->flags & MSDC_HIGHSPEED) { ++ mmc->caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED; ++ } ++ if (hw->data_pins == 4) { /* current data_pins are all 4*/ ++ mmc->caps |= MMC_CAP_4_BIT_DATA; ++ } else if (hw->data_pins == 8) { ++ mmc->caps |= MMC_CAP_8_BIT_DATA; ++ } ++ if ((hw->flags & MSDC_SDIO_IRQ) || (hw->flags & MSDC_EXT_SDIO_IRQ)) ++ mmc->caps |= MMC_CAP_SDIO_IRQ; /* yes for sdio */ ++ ++ cd_active_low = !of_property_read_bool(pdev->dev.of_node, "mediatek,cd-high"); ++ mtk_sw_poll = of_property_read_bool(pdev->dev.of_node, "mediatek,cd-poll"); ++ ++ if (mtk_sw_poll) ++ mmc->caps |= MMC_CAP_NEEDS_POLL; ++ ++ /* MMC core transfer sizes tunable parameters */ ++#if LINUX_VERSION_CODE > KERNEL_VERSION(3,10,0) ++ mmc->max_segs = MAX_HW_SGMTS; ++#else ++ mmc->max_hw_segs = MAX_HW_SGMTS; ++ mmc->max_phys_segs = MAX_PHY_SGMTS; ++#endif ++ mmc->max_seg_size = MAX_SGMT_SZ; ++ mmc->max_blk_size = HOST_MAX_BLKSZ; ++ mmc->max_req_size = MAX_REQ_SZ; ++ mmc->max_blk_count = mmc->max_req_size; ++ ++ host = mmc_priv(mmc); ++ host->hw = hw; ++ host->mmc = mmc; ++ host->id = pdev->id; ++ host->error = 0; ++ host->irq = irq; ++ host->base = (unsigned long) base; ++ host->mclk = 0; /* mclk: the request clock of mmc sub-system */ ++ host->hclk = hclks[hw->clk_src]; /* hclk: clock of clock source to msdc controller */ ++ host->sclk = 0; /* sclk: the really clock after divition */ ++ host->pm_state = PMSG_RESUME; ++ host->suspend = 0; ++ host->core_clkon = 0; ++ host->card_clkon = 0; ++ host->core_power = 0; ++ host->power_mode = MMC_POWER_OFF; ++// host->card_inserted = hw->flags & MSDC_REMOVABLE ? 0 : 1; ++ host->timeout_ns = 0; ++ host->timeout_clks = DEFAULT_DTOC * 65536; ++ ++ host->mrq = NULL; ++ //init_MUTEX(&host->sem); /* we don't need to support multiple threads access */ ++ ++ host->dma.used_gpd = 0; ++ host->dma.used_bd = 0; ++ ++ /* using dma_alloc_coherent*/ /* todo: using 1, for all 4 slots */ ++ host->dma.gpd = dma_alloc_coherent(NULL, MAX_GPD_NUM * sizeof(gpd_t), &host->dma.gpd_addr, GFP_KERNEL); ++ host->dma.bd = dma_alloc_coherent(NULL, MAX_BD_NUM * sizeof(bd_t), &host->dma.bd_addr, GFP_KERNEL); ++ BUG_ON((!host->dma.gpd) || (!host->dma.bd)); ++ msdc_init_gpd_bd(host, &host->dma); ++ /*for emmc*/ ++ msdc_6575_host[pdev->id] = host; ++ ++#if 0 ++ tasklet_init(&host->card_tasklet, msdc_tasklet_card, (ulong)host); ++#else ++ INIT_DELAYED_WORK(&host->card_delaywork, msdc_tasklet_card); ++#endif ++ spin_lock_init(&host->lock); ++ msdc_init_hw(host); ++ ++ ret = request_irq((unsigned int)irq, msdc_irq, IRQF_TRIGGER_LOW, dev_name(&pdev->dev), host); ++ if (ret) goto release; ++ // mt65xx_irq_unmask(irq); /* --- by chhung */ ++ ++ if (hw->flags & MSDC_CD_PIN_EN) { /* not set for sdio */ ++ if (hw->request_cd_eirq) { /* not set for MT6575 */ ++ hw->request_cd_eirq(msdc_eirq_cd, (void*)host); /* msdc_eirq_cd will not be used! */ ++ } ++ } ++ ++ if (hw->request_sdio_eirq) /* set to combo_sdio_request_eirq() for WIFI */ ++ hw->request_sdio_eirq(msdc_eirq_sdio, (void*)host); /* msdc_eirq_sdio() will be called when EIRQ */ ++ ++ if (hw->register_pm) {/* yes for sdio */ ++#ifdef CONFIG_PM ++ hw->register_pm(msdc_pm, (void*)host); /* combo_sdio_register_pm() */ ++#endif ++ if(hw->flags & MSDC_SYS_SUSPEND) { /* will not set for WIFI */ ++ ERR_MSG("MSDC_SYS_SUSPEND and register_pm both set"); ++ } ++ //mmc->pm_flags |= MMC_PM_IGNORE_PM_NOTIFY; /* pm not controlled by system but by client. */ /* --- by chhung */ ++ } ++ ++ platform_set_drvdata(pdev, mmc); ++ ++ ret = mmc_add_host(mmc); ++ if (ret) goto free_irq; ++ ++ /* Config card detection pin and enable interrupts */ ++ if (hw->flags & MSDC_CD_PIN_EN) { /* set for card */ ++ msdc_enable_cd_irq(host, 1); ++ } else { ++ msdc_enable_cd_irq(host, 0); ++ } ++ ++ return 0; ++ ++free_irq: ++ free_irq(irq, host); ++release: ++ platform_set_drvdata(pdev, NULL); ++ msdc_deinit_hw(host); ++ ++#if 0 ++ tasklet_kill(&host->card_tasklet); ++#else ++ cancel_delayed_work_sync(&host->card_delaywork); ++#endif ++ ++ if (mem) ++ release_mem_region(mem->start, mem->end - mem->start + 1); ++ ++ mmc_free_host(mmc); ++ ++ return ret; ++} ++ ++/* 4 device share one driver, using "drvdata" to show difference */ ++static int msdc_drv_remove(struct platform_device *pdev) ++{ ++ struct mmc_host *mmc; ++ struct msdc_host *host; ++ struct resource *mem; ++ ++ mmc = platform_get_drvdata(pdev); ++ BUG_ON(!mmc); ++ ++ host = mmc_priv(mmc); ++ BUG_ON(!host); ++ ++ ERR_MSG("removed !!!"); ++ ++ platform_set_drvdata(pdev, NULL); ++ mmc_remove_host(host->mmc); ++ msdc_deinit_hw(host); ++ ++#if 0 ++ tasklet_kill(&host->card_tasklet); ++#else ++ cancel_delayed_work_sync(&host->card_delaywork); ++#endif ++ free_irq(host->irq, host); ++ ++ dma_free_coherent(NULL, MAX_GPD_NUM * sizeof(gpd_t), host->dma.gpd, host->dma.gpd_addr); ++ dma_free_coherent(NULL, MAX_BD_NUM * sizeof(bd_t), host->dma.bd, host->dma.bd_addr); ++ ++ mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ ++ if (mem) ++ release_mem_region(mem->start, mem->end - mem->start + 1); ++ ++ mmc_free_host(host->mmc); ++ ++ return 0; ++} ++ ++/* Fix me: Power Flow */ ++#ifdef CONFIG_PM ++static int msdc_drv_suspend(struct platform_device *pdev, pm_message_t state) ++{ ++ int ret = 0; ++ struct mmc_host *mmc = platform_get_drvdata(pdev); ++ struct msdc_host *host = mmc_priv(mmc); ++ ++ if (mmc && state.event == PM_EVENT_SUSPEND && (host->hw->flags & MSDC_SYS_SUSPEND)) { /* will set for card */ ++ msdc_pm(state, (void*)host); ++ } ++ ++ return ret; ++} ++ ++static int msdc_drv_resume(struct platform_device *pdev) ++{ ++ int ret = 0; ++ struct mmc_host *mmc = platform_get_drvdata(pdev); ++ struct msdc_host *host = mmc_priv(mmc); ++ struct pm_message state; ++ ++ state.event = PM_EVENT_RESUME; ++ if (mmc && (host->hw->flags & MSDC_SYS_SUSPEND)) {/* will set for card */ ++ msdc_pm(state, (void*)host); ++ } ++ ++ /* This mean WIFI not controller by PM */ ++ ++ return ret; ++} ++#endif ++ ++static const struct of_device_id mt7620_sdhci_match[] = { ++ { .compatible = "ralink,mt7620-sdhci" }, ++ {}, ++}; ++MODULE_DEVICE_TABLE(of, rt288x_wdt_match); ++ ++static struct platform_driver mt_msdc_driver = { ++ .probe = msdc_drv_probe, ++ .remove = msdc_drv_remove, ++#ifdef CONFIG_PM ++ .suspend = msdc_drv_suspend, ++ .resume = msdc_drv_resume, ++#endif ++ .driver = { ++ .name = DRV_NAME, ++ .owner = THIS_MODULE, ++ .of_match_table = mt7620_sdhci_match, ++ }, ++}; ++ ++/*--------------------------------------------------------------------------*/ ++/* module init/exit */ ++/*--------------------------------------------------------------------------*/ ++static int __init mt_msdc_init(void) ++{ ++ int ret; ++/* +++ by chhung */ ++ u32 reg; ++ ++#if defined (CONFIG_MTD_ANY_RALINK) ++ extern int ra_check_flash_type(void); ++ if(ra_check_flash_type() == 2) { /* NAND */ ++ printk("%s: !!!!! SDXC Module Initialize Fail !!!!!", __func__); ++ return 0; ++ } ++#endif ++ printk("MTK MSDC device init.\n"); ++ mtk_sd_device.dev.platform_data = &msdc0_hw; ++if (ralink_soc == MT762X_SOC_MT7620A || ralink_soc == MT762X_SOC_MT7621AT) { ++//#if defined (CONFIG_RALINK_MT7620) || defined (CONFIG_RALINK_MT7621) ++ reg = sdr_read32((volatile u32*)(RALINK_SYSCTL_BASE + 0x60)) & ~(0x3<<18); ++//#if defined (CONFIG_RALINK_MT7620) ++ if (ralink_soc == MT762X_SOC_MT7620A) ++ reg |= 0x1<<18; ++//#endif ++} else { ++//#elif defined (CONFIG_RALINK_MT7628) ++ /* TODO: maybe omitted when RAether already toggle AGPIO_CFG */ ++ reg = sdr_read32((volatile u32*)(RALINK_SYSCTL_BASE + 0x3c)); ++ reg |= 0x1e << 16; ++ sdr_write32((volatile u32*)(RALINK_SYSCTL_BASE + 0x3c), reg); ++ ++ reg = sdr_read32((volatile u32*)(RALINK_SYSCTL_BASE + 0x60)) & ~(0x3<<10); ++#if defined (CONFIG_MTK_MMC_EMMC_8BIT) ++ reg |= 0x3<<26 | 0x3<<28 | 0x3<<30; ++ msdc0_hw.data_pins = 8, ++#endif ++//#endif ++} ++ sdr_write32((volatile u32*)(RALINK_SYSCTL_BASE + 0x60), reg); ++ //platform_device_register(&mtk_sd_device); ++/* end of +++ */ ++ ++ ret = platform_driver_register(&mt_msdc_driver); ++ if (ret) { ++ printk(KERN_ERR DRV_NAME ": Can't register driver"); ++ return ret; ++ } ++ printk(KERN_INFO DRV_NAME ": MediaTek MT6575 MSDC Driver\n"); ++ ++#if defined (MT6575_SD_DEBUG) ++ msdc_debug_proc_init(); ++#endif ++ return 0; ++} ++ ++static void __exit mt_msdc_exit(void) ++{ ++// platform_device_unregister(&mtk_sd_device); ++ platform_driver_unregister(&mt_msdc_driver); ++} ++ ++module_init(mt_msdc_init); ++module_exit(mt_msdc_exit); ++MODULE_LICENSE("GPL"); ++MODULE_DESCRIPTION("MediaTek MT6575 SD/MMC Card Driver"); ++MODULE_AUTHOR("Infinity Chen <infinity.chen@mediatek.com>"); ++ ++EXPORT_SYMBOL(msdc_6575_host); +-- +1.7.10.4 + |