diff options
Diffstat (limited to 'target/linux/ramips/files-4.14')
7 files changed, 4758 insertions, 0 deletions
diff --git a/target/linux/ramips/files-4.14/drivers/mmc/host/mtk-mmc/Kconfig b/target/linux/ramips/files-4.14/drivers/mmc/host/mtk-mmc/Kconfig new file mode 100644 index 0000000000..a58b0f3dc1 --- /dev/null +++ b/target/linux/ramips/files-4.14/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/target/linux/ramips/files-4.14/drivers/mmc/host/mtk-mmc/Makefile b/target/linux/ramips/files-4.14/drivers/mmc/host/mtk-mmc/Makefile new file mode 100644 index 0000000000..caead0b547 --- /dev/null +++ b/target/linux/ramips/files-4.14/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/target/linux/ramips/files-4.14/drivers/mmc/host/mtk-mmc/board.h b/target/linux/ramips/files-4.14/drivers/mmc/host/mtk-mmc/board.h new file mode 100644 index 0000000000..33bfc7b959 --- /dev/null +++ b/target/linux/ramips/files-4.14/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/target/linux/ramips/files-4.14/drivers/mmc/host/mtk-mmc/dbg.c b/target/linux/ramips/files-4.14/drivers/mmc/host/mtk-mmc/dbg.c new file mode 100644 index 0000000000..ae4ef0fa55 --- /dev/null +++ b/target/linux/ramips/files-4.14/drivers/mmc/host/mtk-mmc/dbg.c @@ -0,0 +1,348 @@ +/* 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> + +/* 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) +static char cmd_buf[256]; + +/* for debug zone */ +static unsigned int sd_debug_zone[4]={ + 0, + 0, + 0, + 0 +}; + + +/* 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/target/linux/ramips/files-4.14/drivers/mmc/host/mtk-mmc/dbg.h b/target/linux/ramips/files-4.14/drivers/mmc/host/mtk-mmc/dbg.h new file mode 100644 index 0000000000..e58c431293 --- /dev/null +++ b/target/linux/ramips/files-4.14/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/target/linux/ramips/files-4.14/drivers/mmc/host/mtk-mmc/mt6575_sd.h b/target/linux/ramips/files-4.14/drivers/mmc/host/mtk-mmc/mt6575_sd.h new file mode 100644 index 0000000000..bb1f60ee5a --- /dev/null +++ b/target/linux/ramips/files-4.14/drivers/mmc/host/mtk-mmc/mt6575_sd.h @@ -0,0 +1,1002 @@ +/* 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/interrupt.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/target/linux/ramips/files-4.14/drivers/mmc/host/mtk-mmc/sd.c b/target/linux/ramips/files-4.14/drivers/mmc/host/mtk-mmc/sd.c new file mode 100644 index 0000000000..daedc621bc --- /dev/null +++ b/target/linux/ramips/files-4.14/drivers/mmc/host/mtk-mmc/sd.c @@ -0,0 +1,3057 @@ +/* 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) + +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) + +#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_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 (host->mmc->caps & MMC_CAP_NEEDS_POLL) + inserted = 1; + +#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 && ralink_soc == MT762X_SOC_MT7621AT && 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; + if (host->mmc->caps & MMC_CAP_NEEDS_POLL) + present = 1; + 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; + + /* 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; + + if (of_property_read_bool(pdev->dev.of_node, "mtk,wp-en")) + msdc0_hw.flags |= MSDC_WP_PIN_EN; + + /* 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; + BUG_ON(pdev->id < -1); + BUG_ON(pdev->id >= ARRAY_SIZE(drv_mode)); + host->id = (pdev->id == -1) ? 0 : 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); + +#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); + + if (ralink_soc == MT762X_SOC_MT7621AT) + ret = request_irq((unsigned int)irq, msdc_irq, 0, dev_name(&pdev->dev), host); + else + 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, mt7620_sdhci_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, + .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"); |