diff options
Diffstat (limited to 'target/linux/mpc83xx/patches-2.6.36/030-ucc_tdm.patch')
| -rw-r--r-- | target/linux/mpc83xx/patches-2.6.36/030-ucc_tdm.patch | 1307 |
1 files changed, 0 insertions, 1307 deletions
diff --git a/target/linux/mpc83xx/patches-2.6.36/030-ucc_tdm.patch b/target/linux/mpc83xx/patches-2.6.36/030-ucc_tdm.patch deleted file mode 100644 index c8162ab764..0000000000 --- a/target/linux/mpc83xx/patches-2.6.36/030-ucc_tdm.patch +++ /dev/null @@ -1,1307 +0,0 @@ ---- /dev/null -+++ b/drivers/misc/ucc_tdm.h -@@ -0,0 +1,221 @@ -+/* -+ * drivers/misc/ucc_tdm.h -+ * -+ * UCC Based Linux TDM Driver -+ * This driver is designed to support UCC based TDM for PowerPC processors. -+ * This driver can interface with SLIC device to run VOIP kind of -+ * applications. -+ * -+ * Author: Ashish Kalra & Poonam Aggrwal -+ * -+ * Copyright (c) 2007 Freescale Semiconductor, Inc. -+ * -+ * This program is free software; you can redistribute it and/or modify it -+ * under the terms of the GNU General Public License as published by the -+ * Free Software Foundation; either version 2 of the License, or (at your -+ * option) any later version. -+ */ -+ -+#ifndef TDM_H -+#define TDM_H -+ -+#define NUM_TS 8 -+#define ACTIVE_CH 8 -+ -+/* SAMPLE_DEPTH is the sample depth is the number of frames before -+ * an interrupt. Must be a multiple of 4 -+ */ -+#define SAMPLE_DEPTH 80 -+ -+/* define the number of Rx interrupts to go by for initial stuttering */ -+#define STUTTER_INT_CNT 1 -+ -+/* BMRx Field Descriptions to specify tstate and rstate in UCC parameter RAM*/ -+#define EN_BUS_SNOOPING 0x20 -+#define BE_BO 0x10 -+ -+/* UPSMR Register for Transparent UCC controller Bit definitions*/ -+#define NBO 0x00000000 /* Normal Mode 1 bit of data per clock */ -+ -+/* SI Mode register bit definitions */ -+#define NORMAL_OPERATION 0x0000 -+#define AUTO_ECHO 0x0400 -+#define INTERNAL_LB 0x0800 -+#define CONTROL_LB 0x0c00 -+#define SIMODE_CRT (0x8000 >> 9) -+#define SIMODE_SL (0x8000 >> 10) -+#define SIMODE_CE (0x8000 >> 11) -+#define SIMODE_FE (0x8000 >> 12) -+#define SIMODE_GM (0x8000 >> 13) -+#define SIMODE_TFSD(val) (val) -+#define SIMODE_RFSD(val) ((val) << 8) -+ -+#define SI_TDM_MODE_REGISTER_OFFSET 0 -+ -+#define R_CM 0x02000000 -+#define T_CM 0x02000000 -+ -+#define SET_RX_SI_RAM(n, val) \ -+ out_be16((u16 *)&qe_immr->sir.rx[(n)*2], (u16)(val)) -+ -+#define SET_TX_SI_RAM(n, val) \ -+ out_be16((u16 *)&qe_immr->sir.tx[(n)*2], (u16)(val)) -+ -+/* SI RAM entries */ -+#define SIR_LAST 0x0001 -+#define SIR_CNT(n) ((n) << 2) -+#define SIR_BYTE 0x0002 -+#define SIR_BIT 0x0000 -+#define SIR_IDLE 0 -+#define SIR_UCC(uccx) (((uccx+9)) << 5) -+ -+/* BRGC Register Bit definitions */ -+#define BRGC_RESET (0x1<<17) -+#define BRGC_EN (0x1<<16) -+#define BRGC_EXTC_QE (0x00<<14) -+#define BRGC_EXTC_CLK3 (0x01<<14) -+#define BRGC_EXTC_CLK5 (0x01<<15) -+#define BRGC_EXTC_CLK9 (0x01<<14) -+#define BRGC_EXTC_CLK11 (0x01<<14) -+#define BRGC_EXTC_CLK13 (0x01<<14) -+#define BRGC_EXTC_CLK15 (0x01<<15) -+#define BRGC_ATB (0x1<<13) -+#define BRGC_DIV16 (0x1) -+ -+/* structure representing UCC transparent parameter RAM */ -+struct ucc_transparent_pram { -+ __be16 riptr; -+ __be16 tiptr; -+ __be16 res0; -+ __be16 mrblr; -+ __be32 rstate; -+ __be32 rbase; -+ __be16 rbdstat; -+ __be16 rbdlen; -+ __be32 rdptr; -+ __be32 tstate; -+ __be32 tbase; -+ __be16 tbdstat; -+ __be16 tbdlen; -+ __be32 tdptr; -+ __be32 rbptr; -+ __be32 tbptr; -+ __be32 rcrc; -+ __be32 res1; -+ __be32 tcrc; -+ __be32 res2; -+ __be32 res3; -+ __be32 c_mask; -+ __be32 c_pres; -+ __be16 disfc; -+ __be16 crcec; -+ __be32 res4[4]; -+ __be16 ts_tmp; -+ __be16 tmp_mb; -+}; -+ -+#define UCC_TRANSPARENT_PRAM_SIZE 0x100 -+ -+struct tdm_cfg { -+ u8 com_pin; /* Common receive and transmit pins -+ * 0 = separate pins -+ * 1 = common pins -+ */ -+ -+ u8 fr_sync_level; /* SLx bit Frame Sync Polarity -+ * 0 = L1R/TSYNC active logic "1" -+ * 1 = L1R/TSYNC active logic "0" -+ */ -+ -+ u8 clk_edge; /* CEx bit Tx Rx Clock Edge -+ * 0 = TX data on rising edge of clock -+ * RX data on falling edge -+ * 1 = TX data on falling edge of clock -+ * RX data on rising edge -+ */ -+ -+ u8 fr_sync_edge; /* FEx bit Frame sync edge -+ * Determine when the sync pulses are sampled -+ * 0 = Falling edge -+ * 1 = Rising edge -+ */ -+ -+ u8 rx_fr_sync_delay; /* TFSDx/RFSDx bits Frame Sync Delay -+ * 00 = no bit delay -+ * 01 = 1 bit delay -+ * 10 = 2 bit delay -+ * 11 = 3 bit delay -+ */ -+ -+ u8 tx_fr_sync_delay; /* TFSDx/RFSDx bits Frame Sync Delay -+ * 00 = no bit delay -+ * 01 = 1 bit delay -+ * 10 = 2 bit delay -+ * 11 = 3 bit delay -+ */ -+ -+ u8 active_num_ts; /* Number of active time slots in TDM -+ * assume same active Rx/Tx time slots -+ */ -+}; -+ -+struct ucc_tdm_info { -+ struct ucc_fast_info uf_info; -+ u32 ucc_busy; -+}; -+ -+struct tdm_ctrl { -+ u32 device_busy; -+ struct device *device; -+ struct ucc_fast_private *uf_private; -+ struct ucc_tdm_info *ut_info; -+ u32 tdm_port; /* port for this tdm:TDMA,TDMB,TDMC,TDMD */ -+ u32 si; /* serial interface: 0 or 1 */ -+ struct ucc_fast __iomem *uf_regs; /* UCC Fast registers */ -+ u16 rx_mask[8]; /* Active Receive channels LSB is ch0 */ -+ u16 tx_mask[8]; /* Active Transmit channels LSB is ch0 */ -+ /* Only channels less than the number of FRAME_SIZE are implemented */ -+ struct tdm_cfg cfg_ctrl; /* Signaling controls configuration */ -+ u8 *tdm_input_data; /* buffer used for Rx by the tdm */ -+ u8 *tdm_output_data; /* buffer used for Tx by the tdm */ -+ -+ dma_addr_t dma_input_addr; /* dma mapped buffer for TDM Rx */ -+ dma_addr_t dma_output_addr; /* dma mapped buffer for TDM Tx */ -+ u16 physical_num_ts; /* physical number of timeslots in the tdm -+ frame */ -+ u32 phase_rx; /* cycles through 0, 1, 2 */ -+ u32 phase_tx; /* cycles through 0, 1, 2 */ -+ /* -+ * the following two variables are for dealing with "stutter" problem -+ * "stutter" period is about 20 frames or so, varies depending active -+ * channel num depending on the sample depth, the code should let a -+ * few Rx interrupts go by -+ */ -+ u32 tdm_icnt; -+ u32 tdm_flag; -+ struct ucc_transparent_pram __iomem *ucc_pram; -+ struct qe_bd __iomem *tx_bd; -+ struct qe_bd __iomem *rx_bd; -+ u32 ucc_pram_offset; -+ u32 tx_bd_offset; -+ u32 rx_bd_offset; -+ u32 rx_ucode_buf_offset; -+ u32 tx_ucode_buf_offset; -+ bool leg_slic; -+ wait_queue_head_t wakeup_event; -+}; -+ -+struct tdm_client { -+ u32 client_id; -+ void (*tdm_read)(u32 client_id, short chn_id, -+ short *pcm_buffer, short len); -+ void (*tdm_write)(u32 client_id, short chn_id, -+ short *pcm_buffer, short len); -+ wait_queue_head_t *wakeup_event; -+ }; -+ -+#define MAX_PHASE 1 -+#define NR_BUFS 2 -+#define EFF_ACTIVE_CH ACTIVE_CH / 2 -+ -+#endif ---- /dev/null -+++ b/drivers/misc/ucc_tdm.c -@@ -0,0 +1,1017 @@ -+/* -+ * drivers/misc/ucc_tdm.c -+ * -+ * UCC Based Linux TDM Driver -+ * This driver is designed to support UCC based TDM for PowerPC processors. -+ * This driver can interface with SLIC device to run VOIP kind of -+ * applications. -+ * -+ * Author: Ashish Kalra & Poonam Aggrwal -+ * -+ * Copyright (c) 2007 Freescale Semiconductor, Inc. -+ * -+ * This program is free software; you can redistribute it and/or modify it -+ * under the terms of the GNU General Public License as published by the -+ * Free Software Foundation; either version 2 of the License, or (at your -+ * option) any later version. -+ */ -+ -+#include <generated/autoconf.h> -+#include <linux/module.h> -+#include <linux/sched.h> -+#include <linux/kernel.h> -+#include <linux/slab.h> -+#include <linux/errno.h> -+#include <linux/types.h> -+#include <linux/interrupt.h> -+#include <linux/time.h> -+#include <linux/skbuff.h> -+#include <linux/proc_fs.h> -+#include <linux/delay.h> -+#include <linux/dma-mapping.h> -+#include <linux/string.h> -+#include <linux/irq.h> -+#include <linux/of_platform.h> -+#include <linux/io.h> -+#include <linux/wait.h> -+#include <linux/timer.h> -+ -+#include <asm/immap_qe.h> -+#include <asm/qe.h> -+#include <asm/ucc.h> -+#include <asm/ucc_fast.h> -+#include <asm/ucc_slow.h> -+ -+#include "ucc_tdm.h" -+#define DRV_DESC "Freescale QE UCC TDM Driver" -+#define DRV_NAME "ucc_tdm" -+ -+ -+/* -+ * define the following #define if snooping or hardware-based cache coherency -+ * is disabled on the UCC transparent controller.This flag enables -+ * software-based cache-coherency support by explicitly flushing data cache -+ * contents after setting up the TDM output buffer(s) and invalidating the -+ * data cache contents before the TDM input buffer(s) are read. -+ */ -+#undef UCC_CACHE_SNOOPING_DISABLED -+ -+#define MAX_NUM_TDM_DEVICES 8 -+ -+static struct tdm_ctrl *tdm_ctrl[MAX_NUM_TDM_DEVICES]; -+ -+static int num_tdm_devices; -+static int num_tdm_clients; -+ -+static struct ucc_tdm_info utdm_primary_info = { -+ .uf_info = { -+ .tsa = 1, -+ .cdp = 1, -+ .cds = 1, -+ .ctsp = 1, -+ .ctss = 1, -+ .revd = 1, -+ .urfs = 0x128, -+ .utfs = 0x128, -+ .utfet = 0, -+ .utftt = 0x128, -+ .ufpt = 256, -+ .ttx_trx = UCC_FAST_GUMR_TRANSPARENT_TTX_TRX_TRANSPARENT, -+ .tenc = UCC_FAST_TX_ENCODING_NRZ, -+ .renc = UCC_FAST_RX_ENCODING_NRZ, -+ .tcrc = UCC_FAST_16_BIT_CRC, -+ .synl = UCC_FAST_SYNC_LEN_NOT_USED, -+ }, -+ .ucc_busy = 0, -+}; -+ -+static struct ucc_tdm_info utdm_info[8]; -+ -+static void dump_siram(struct tdm_ctrl *tdm_c) -+{ -+#ifdef DEBUG -+ int i; -+ u16 phy_num_ts; -+ -+ phy_num_ts = tdm_c->physical_num_ts; -+ -+ pr_debug("SI TxRAM dump\n"); -+ /* each slot entry in SI RAM is of 2 bytes */ -+ for (i = 0; i < phy_num_ts * 2; i++) -+ pr_debug("%x ", in_8(&qe_immr->sir.tx[i])); -+ pr_debug("\nSI RxRAM dump\n"); -+ for (i = 0; i < phy_num_ts * 2; i++) -+ pr_debug("%x ", in_8(&qe_immr->sir.rx[i])); -+ pr_debug("\n"); -+#endif -+} -+ -+static void dump_ucc(struct tdm_ctrl *tdm_c) -+{ -+#ifdef DEBUG -+ struct ucc_transparent_pram *ucc_pram; -+ -+ ucc_pram = tdm_c->ucc_pram; -+ -+ pr_debug("%s Dumping UCC Registers\n", __FUNCTION__); -+ ucc_fast_dump_regs(tdm_c->uf_private); -+ pr_debug("%s Dumping UCC Parameter RAM\n", __FUNCTION__); -+ pr_debug("rbase = 0x%x\n", in_be32(&ucc_pram->rbase)); -+ pr_debug("rbptr = 0x%x\n", in_be32(&ucc_pram->rbptr)); -+ pr_debug("mrblr = 0x%x\n", in_be16(&ucc_pram->mrblr)); -+ pr_debug("rbdlen = 0x%x\n", in_be16(&ucc_pram->rbdlen)); -+ pr_debug("rbdstat = 0x%x\n", in_be16(&ucc_pram->rbdstat)); -+ pr_debug("rstate = 0x%x\n", in_be32(&ucc_pram->rstate)); -+ pr_debug("rdptr = 0x%x\n", in_be32(&ucc_pram->rdptr)); -+ pr_debug("tbase = 0x%x\n", in_be32(&ucc_pram->tbase)); -+ pr_debug("tbptr = 0x%x\n", in_be32(&ucc_pram->tbptr)); -+ pr_debug("tbdlen = 0x%x\n", in_be16(&ucc_pram->tbdlen)); -+ pr_debug("tbdstat = 0x%x\n", in_be16(&ucc_pram->tbdstat)); -+ pr_debug("tstate = 0x%x\n", in_be32(&ucc_pram->tstate)); -+ pr_debug("tdptr = 0x%x\n", in_be32(&ucc_pram->tdptr)); -+#endif -+} -+ -+/* -+ * For use when a framing bit is not present -+ * Program current-route SI ram -+ * Set SIxRAM TDMx -+ * Entries must be in units of 8. -+ * SIR_UCC -> Channel Select -+ * SIR_CNT -> Number of bits or bytes -+ * SIR_BYTE -> Byte or Bit resolution -+ * SIR_LAST -> Indicates last entry in SIxRAM -+ * SIR_IDLE -> The Tx data pin is Tri-stated and the Rx data pin is -+ * ignored -+ */ -+static void set_siram(struct tdm_ctrl *tdm_c, enum comm_dir dir) -+{ -+ const u16 *mask; -+ u16 temp_mask = 1; -+ u16 siram_code = 0; -+ u32 i, j, k; -+ u32 ucc; -+ u32 phy_num_ts; -+ -+ phy_num_ts = tdm_c->physical_num_ts; -+ ucc = tdm_c->ut_info->uf_info.ucc_num; -+ -+ if (dir == COMM_DIR_RX) -+ mask = tdm_c->rx_mask; -+ else -+ mask = tdm_c->tx_mask; -+ k = 0; -+ j = 0; -+ for (i = 0; i < phy_num_ts; i++) { -+ if ((mask[k] & temp_mask) == temp_mask) -+ siram_code = SIR_UCC(ucc) | SIR_CNT(0) | SIR_BYTE; -+ else -+ siram_code = SIR_IDLE | SIR_CNT(0) | SIR_BYTE; -+ if (dir == COMM_DIR_RX) -+ out_be16((u16 *)&qe_immr->sir.rx[i * 2], siram_code); -+ else -+ out_be16((u16 *)&qe_immr->sir.tx[i * 2], siram_code); -+ temp_mask = temp_mask << 1; -+ j++; -+ if (j >= 16) { -+ j = 0; -+ temp_mask = 0x0001; -+ k++; -+ } -+ } -+ siram_code = siram_code | SIR_LAST; -+ -+ if (dir == COMM_DIR_RX) -+ out_be16((u16 *)&qe_immr->sir.rx[(phy_num_ts - 1) * 2], -+ siram_code); -+ else -+ out_be16((u16 *)&qe_immr->sir.tx[(phy_num_ts - 1) * 2], -+ siram_code); -+} -+ -+static void config_si(struct tdm_ctrl *tdm_c) -+{ -+ u8 rxsyncdelay, txsyncdelay, tdm_port; -+ u16 sixmr_val = 0; -+ u32 tdma_mode_off; -+ u16 *si1_tdm_mode_reg; -+ -+ tdm_port = tdm_c->tdm_port; -+ -+ set_siram(tdm_c, COMM_DIR_RX); -+ -+ set_siram(tdm_c, COMM_DIR_TX); -+ -+ rxsyncdelay = tdm_c->cfg_ctrl.rx_fr_sync_delay; -+ txsyncdelay = tdm_c->cfg_ctrl.tx_fr_sync_delay; -+ if (tdm_c->cfg_ctrl.com_pin) -+ sixmr_val |= SIMODE_CRT; -+ if (tdm_c->cfg_ctrl.fr_sync_level == 1) -+ sixmr_val |= SIMODE_SL; -+ if (tdm_c->cfg_ctrl.clk_edge == 1) -+ sixmr_val |= SIMODE_CE; -+ if (tdm_c->cfg_ctrl.fr_sync_edge == 1) -+ sixmr_val |= SIMODE_FE; -+ sixmr_val |= (SIMODE_TFSD(txsyncdelay) | SIMODE_RFSD(rxsyncdelay)); -+ -+ tdma_mode_off = SI_TDM_MODE_REGISTER_OFFSET * tdm_c->tdm_port; -+ -+ si1_tdm_mode_reg = (u8 *)&qe_immr->si1 + tdma_mode_off; -+ out_be16(si1_tdm_mode_reg, sixmr_val); -+ -+ dump_siram(tdm_c); -+} -+ -+static int tdm_init(struct tdm_ctrl *tdm_c) -+{ -+ u32 tdm_port, ucc, act_num_ts; -+ int ret, i, err; -+ u32 cecr_subblock; -+ u32 pram_offset; -+ u32 rxbdt_offset; -+ u32 txbdt_offset; -+ u32 rx_ucode_buf_offset, tx_ucode_buf_offset; -+ u16 bd_status, bd_len; -+ enum qe_clock clock; -+ struct qe_bd __iomem *rx_bd, *tx_bd; -+ -+ tdm_port = tdm_c->tdm_port; -+ ucc = tdm_c->ut_info->uf_info.ucc_num; -+ act_num_ts = tdm_c->cfg_ctrl.active_num_ts; -+ -+ /* -+ * TDM Tx and Rx CLKs = 2048 KHz. -+ */ -+ if (strstr(tdm_c->ut_info->uf_info.tdm_tx_clk, "BRG")) { -+ clock = qe_clock_source(tdm_c->ut_info->uf_info.tdm_tx_clk); -+ err = qe_setbrg(clock, 2048000, 1); -+ if (err < 0) { -+ printk(KERN_ERR "%s: Failed to set %s\n", __FUNCTION__, -+ tdm_c->ut_info->uf_info.tdm_tx_clk); -+ return err; -+ } -+ } -+ if (strstr(tdm_c->ut_info->uf_info.tdm_rx_clk, "BRG")) { -+ clock = qe_clock_source(tdm_c->ut_info->uf_info.tdm_rx_clk); -+ err = qe_setbrg(clock, 2048000, 1); -+ if (err < 0) { -+ printk(KERN_ERR "%s: Failed to set %s\n", __FUNCTION__, -+ tdm_c->ut_info->uf_info.tdm_rx_clk); -+ return err; -+ } -+ } -+ /* -+ * TDM FSyncs = 4 KHz. -+ */ -+ if (strstr(tdm_c->ut_info->uf_info.tdm_tx_sync, "BRG")) { -+ clock = qe_clock_source(tdm_c->ut_info->uf_info.tdm_tx_sync); -+ err = qe_setbrg(clock, 4000, 1); -+ if (err < 0) { -+ printk(KERN_ERR "%s: Failed to set %s\n", __FUNCTION__, -+ tdm_c->ut_info->uf_info.tdm_tx_sync); -+ return err; -+ } -+ } -+ if (strstr(tdm_c->ut_info->uf_info.tdm_rx_sync, "BRG")) { -+ clock = qe_clock_source(tdm_c->ut_info->uf_info.tdm_rx_sync); -+ err = qe_setbrg(clock, 4000, 1); -+ if (err < 0) { -+ printk(KERN_ERR "%s: Failed to set %s\n", __FUNCTION__, -+ tdm_c->ut_info->uf_info.tdm_rx_sync); -+ return err; -+ } -+ } -+ -+ tdm_c->ut_info->uf_info.uccm_mask = (u32) -+ ((UCC_TRANS_UCCE_RXB | UCC_TRANS_UCCE_BSY) << 16); -+ -+ if (ucc_fast_init(&(tdm_c->ut_info->uf_info), &tdm_c->uf_private)) { -+ printk(KERN_ERR "%s: Failed to init uccf\n", __FUNCTION__); -+ return -ENOMEM; -+ } -+ -+ ucc_fast_disable(tdm_c->uf_private, COMM_DIR_RX | COMM_DIR_TX); -+ -+ /* Write to QE CECR, UCCx channel to Stop Transmission */ -+ cecr_subblock = ucc_fast_get_qe_cr_subblock(ucc); -+ qe_issue_cmd(QE_STOP_TX, cecr_subblock, -+ (u8) QE_CR_PROTOCOL_UNSPECIFIED, 0); -+ -+ pram_offset = qe_muram_alloc(UCC_TRANSPARENT_PRAM_SIZE, -+ ALIGNMENT_OF_UCC_SLOW_PRAM); -+ if (IS_ERR_VALUE(pram_offset)) { -+ printk(KERN_ERR "%s: Cannot allocate MURAM memory for" -+ " transparent UCC\n", __FUNCTION__); -+ ret = -ENOMEM; -+ goto pram_alloc_error; -+ } -+ -+ cecr_subblock = ucc_fast_get_qe_cr_subblock(ucc); -+ qe_issue_cmd(QE_ASSIGN_PAGE_TO_DEVICE, cecr_subblock, -+ QE_CR_PROTOCOL_UNSPECIFIED, pram_offset); -+ -+ tdm_c->ucc_pram = qe_muram_addr(pram_offset); -+ tdm_c->ucc_pram_offset = pram_offset; -+ -+ /* -+ * zero-out pram, this will also ensure RSTATE, TSTATE are cleared, also -+ * DISFC & CRCEC counters will be initialized. -+ */ -+ memset(tdm_c->ucc_pram, 0, sizeof(struct ucc_transparent_pram)); -+ -+ /* rbase, tbase alignment is 8. */ -+ rxbdt_offset = qe_muram_alloc(NR_BUFS * sizeof(struct qe_bd), -+ QE_ALIGNMENT_OF_BD); -+ if (IS_ERR_VALUE(rxbdt_offset)) { -+ printk(KERN_ERR "%s: Cannot allocate MURAM memory for RxBDs\n", -+ __FUNCTION__); -+ ret = -ENOMEM; -+ goto rxbd_alloc_error; -+ } -+ txbdt_offset = qe_muram_alloc(NR_BUFS * sizeof(struct qe_bd), -+ QE_ALIGNMENT_OF_BD); -+ if (IS_ERR_VALUE(txbdt_offset)) { -+ printk(KERN_ERR "%s: Cannot allocate MURAM memory for TxBDs\n", -+ __FUNCTION__); -+ ret = -ENOMEM; -+ goto txbd_alloc_error; -+ } -+ tdm_c->tx_bd = qe_muram_addr(txbdt_offset); -+ tdm_c->rx_bd = qe_muram_addr(rxbdt_offset); -+ -+ tdm_c->tx_bd_offset = txbdt_offset; -+ tdm_c->rx_bd_offset = rxbdt_offset; -+ -+ rx_bd = tdm_c->rx_bd; -+ tx_bd = tdm_c->tx_bd; -+ -+ out_be32(&tdm_c->ucc_pram->rbase, (u32) immrbar_virt_to_phys(rx_bd)); -+ out_be32(&tdm_c->ucc_pram->tbase, (u32) immrbar_virt_to_phys(tx_bd)); -+ -+ for (i = 0; i < NR_BUFS - 1; i++) { -+ bd_status = (u16) ((R_E | R_CM | R_I) >> 16); -+ bd_len = 0; -+ out_be16(&rx_bd->length, bd_len); -+ out_be16(&rx_bd->status, bd_status); -+ out_be32(&rx_bd->buf, -+ tdm_c->dma_input_addr + i * SAMPLE_DEPTH * act_num_ts); -+ rx_bd += 1; -+ -+ bd_status = (u16) ((T_R | T_CM) >> 16); -+ bd_len = SAMPLE_DEPTH * act_num_ts; -+ out_be16(&tx_bd->length, bd_len); -+ out_be16(&tx_bd->status, bd_status); -+ out_be32(&tx_bd->buf, -+ tdm_c->dma_output_addr + i * SAMPLE_DEPTH * act_num_ts); -+ tx_bd += 1; -+ } -+ -+ bd_status = (u16) ((R_E | R_CM | R_I | R_W) >> 16); -+ bd_len = 0; -+ out_be16(&rx_bd->length, bd_len); -+ out_be16(&rx_bd->status, bd_status); -+ out_be32(&rx_bd->buf, -+ tdm_c->dma_input_addr + i * SAMPLE_DEPTH * act_num_ts); -+ -+ bd_status = (u16) ((T_R | T_CM | T_W) >> 16); -+ bd_len = SAMPLE_DEPTH * act_num_ts; -+ out_be16(&tx_bd->length, bd_len); -+ out_be16(&tx_bd->status, bd_status); -+ out_be32(&tx_bd->buf, -+ tdm_c->dma_output_addr + i * SAMPLE_DEPTH * act_num_ts); -+ -+ config_si(tdm_c); -+ -+ setbits32(&qe_immr->ic.qimr, (0x80000000UL >> ucc)); -+ -+ rx_ucode_buf_offset = qe_muram_alloc(32, 32); -+ if (IS_ERR_VALUE(rx_ucode_buf_offset)) { -+ printk(KERN_ERR "%s: Cannot allocate MURAM mem for Rx" -+ " ucode buf\n", __FUNCTION__); -+ ret = -ENOMEM; -+ goto rxucode_buf_alloc_error; -+ } -+ -+ tx_ucode_buf_offset = qe_muram_alloc(32, 32); -+ if (IS_ERR_VALUE(tx_ucode_buf_offset)) { -+ printk(KERN_ERR "%s: Cannot allocate MURAM mem for Tx" -+ " ucode buf\n", __FUNCTION__); -+ ret = -ENOMEM; -+ goto txucode_buf_alloc_error; -+ } -+ out_be16(&tdm_c->ucc_pram->riptr, (u16) rx_ucode_buf_offset); -+ out_be16(&tdm_c->ucc_pram->tiptr, (u16) tx_ucode_buf_offset); -+ -+ tdm_c->rx_ucode_buf_offset = rx_ucode_buf_offset; -+ tdm_c->tx_ucode_buf_offset = tx_ucode_buf_offset; -+ -+ /* -+ * set the receive buffer descriptor maximum size to be -+ * SAMPLE_DEPTH * number of active RX channels -+ */ -+ out_be16(&tdm_c->ucc_pram->mrblr, (u16) SAMPLE_DEPTH * act_num_ts); -+ -+ /* -+ * enable snooping and BE byte ordering on the UCC pram's -+ * tstate & rstate registers. -+ */ -+ out_be32(&tdm_c->ucc_pram->tstate, 0x30000000UL); -+ out_be32(&tdm_c->ucc_pram->rstate, 0x30000000UL); -+ -+ /*Put UCC transparent controller into serial interface mode. */ -+ out_be32(&tdm_c->uf_regs->upsmr, 0); -+ -+ /* Reset TX and RX for UCCx */ -+ cecr_subblock = ucc_fast_get_qe_cr_subblock(ucc); -+ qe_issue_cmd(QE_INIT_TX_RX, cecr_subblock, -+ (u8) QE_CR_PROTOCOL_UNSPECIFIED, 0); -+ -+ return 0; -+ -+txucode_buf_alloc_error: -+ qe_muram_free(rx_ucode_buf_offset); -+rxucode_buf_alloc_error: -+ qe_muram_free(txbdt_offset); -+txbd_alloc_error: -+ qe_muram_free(rxbdt_offset); -+rxbd_alloc_error: -+ qe_muram_free(pram_offset); -+pram_alloc_error: -+ ucc_fast_free(tdm_c->uf_private); -+ return ret; -+} -+ -+static void tdm_deinit(struct tdm_ctrl *tdm_c) -+{ -+ qe_muram_free(tdm_c->rx_ucode_buf_offset); -+ qe_muram_free(tdm_c->tx_ucode_buf_offset); -+ -+ if (tdm_c->rx_bd_offset) { -+ qe_muram_free(tdm_c->rx_bd_offset); -+ tdm_c->rx_bd = NULL; -+ tdm_c->rx_bd_offset = 0; -+ } -+ if (tdm_c->tx_bd_offset) { -+ qe_muram_free(tdm_c->tx_bd_offset); -+ tdm_c->tx_bd = NULL; -+ tdm_c->tx_bd_offset = 0; -+ } -+ if (tdm_c->ucc_pram_offset) { -+ qe_muram_free(tdm_c->ucc_pram_offset); -+ tdm_c->ucc_pram = NULL; -+ tdm_c->ucc_pram_offset = 0; -+ } -+} -+ -+ -+static irqreturn_t tdm_isr(int irq, void *dev_id) -+{ -+ u8 *input_tdm_buffer, *output_tdm_buffer; -+ u32 txb, rxb; -+ u32 ucc; -+ register u32 ucce = 0; -+ struct tdm_ctrl *tdm_c; -+ tdm_c = (struct tdm_ctrl *)dev_id; -+ -+ tdm_c->tdm_icnt++; -+ ucc = tdm_c->ut_info->uf_info.ucc_num; -+ input_tdm_buffer = tdm_c->tdm_input_data; -+ output_tdm_buffer = tdm_c->tdm_output_data; -+ -+ if (in_be32(tdm_c->uf_private->p_ucce) & -+ (UCC_TRANS_UCCE_BSY << 16)) { -+ out_be32(tdm_c->uf_private->p_ucce, -+ (UCC_TRANS_UCCE_BSY << 16)); -+ pr_info("%s: From tdm isr busy interrupt\n", -+ __FUNCTION__); -+ dump_ucc(tdm_c); -+ -+ return IRQ_HANDLED; -+ } -+ -+ if (tdm_c->tdm_flag == 1) { -+ /* track phases for Rx/Tx */ -+ tdm_c->phase_rx += 1; -+ if (tdm_c->phase_rx == MAX_PHASE) -+ tdm_c->phase_rx = 0; -+ -+ tdm_c->phase_tx += 1; -+ if (tdm_c->phase_tx == MAX_PHASE) -+ tdm_c->phase_tx = 0; -+ -+#ifdef CONFIG_TDM_HW_LB_TSA_SLIC -+ { -+ u32 temp_rx, temp_tx, phase_tx, phase_rx; -+ int i; -+ phase_rx = tdm_c->phase_rx; -+ phase_tx = tdm_c->phase_tx; -+ if (phase_rx == 0) -+ phase_rx = MAX_PHASE; -+ else -+ phase_rx -= 1; -+ if (phase_tx == 0) -+ phase_tx = MAX_PHASE; -+ else -+ phase_tx -= 1; -+ temp_rx = phase_rx * SAMPLE_DEPTH * ACTIVE_CH; -+ temp_tx = phase_tx * SAMPLE_DEPTH * ACTIVE_CH; -+ -+ /*check if loopback received data on TS0 is correct. */ -+ pr_debug("%s: check if loopback received data on TS0" -+ " is correct\n", __FUNCTION__); -+ pr_debug("%d,%d ", phase_rx, phase_tx); -+ for (i = 0; i < 8; i++) -+ pr_debug("%1d,%1d ", -+ input_tdm_buffer[temp_rx + i], -+ output_tdm_buffer[temp_tx + i]); -+ pr_debug("\n"); -+ } -+#endif -+ -+ /* schedule BH */ -+ wake_up_interruptible(&tdm_c->wakeup_event); -+ } else { -+ if (tdm_c->tdm_icnt == STUTTER_INT_CNT) { -+ txb = in_be32(&tdm_c->ucc_pram->tbptr) - -+ in_be32(&tdm_c->ucc_pram->tbase); -+ rxb = in_be32(&tdm_c->ucc_pram->rbptr) - -+ in_be32(&tdm_c->ucc_pram->rbase); -+ tdm_c->phase_tx = txb / sizeof(struct qe_bd); -+ tdm_c->phase_rx = rxb / sizeof(struct qe_bd); -+ -+#ifdef CONFIG_TDM_HW_LB_TSA_SLIC -+ tdm_c->phase_tx = tdm_c->phase_rx; -+#endif -+ -+ /* signal "stuttering" period is over */ -+ tdm_c->tdm_flag = 1; -+ -+ pr_debug("%s: stuttering period is over\n", -+ __FUNCTION__); -+ -+ if (in_be32(tdm_c->uf_private->p_ucce) & -+ (UCC_TRANS_UCCE_TXE << 16)) { -+ u32 cecr_subblock; -+ out_be32(tdm_c->uf_private->p_ucce, -+ (UCC_TRANS_UCCE_TXE << 16)); -+ pr_debug("%s: From tdm isr txe interrupt\n", -+ __FUNCTION__); -+ -+ cecr_subblock = -+ ucc_fast_get_qe_cr_subblock(ucc); -+ qe_issue_cmd(QE_RESTART_TX, cecr_subblock, -+ (u8) QE_CR_PROTOCOL_UNSPECIFIED, -+ 0); -+ } -+ } -+ } -+ -+ ucce = (in_be32(tdm_c->uf_private->p_ucce) -+ & in_be32(tdm_c->uf_private->p_uccm)); -+ -+ out_be32(tdm_c->uf_private->p_ucce, ucce); -+ -+ return IRQ_HANDLED; -+} -+ -+static int tdm_start(struct tdm_ctrl *tdm_c) -+{ -+ if (request_irq(tdm_c->ut_info->uf_info.irq, tdm_isr, -+ 0, "tdm", tdm_c)) { -+ printk(KERN_ERR "%s: request_irq for tdm_isr failed\n", -+ __FUNCTION__); -+ return -ENODEV; -+ } -+ -+ ucc_fast_enable(tdm_c->uf_private, COMM_DIR_RX | COMM_DIR_TX); -+ -+ pr_info("%s 16-bit linear pcm mode active with" -+ " slots 0 & 2\n", __FUNCTION__); -+ -+ dump_siram(tdm_c); -+ dump_ucc(tdm_c); -+ -+ setbits8(&(qe_immr->si1.siglmr1_h), (0x1 << tdm_c->tdm_port)); -+ pr_info("%s UCC based TDM enabled\n", __FUNCTION__); -+ -+ return 0; -+} -+ -+static void tdm_stop(struct tdm_ctrl *tdm_c) -+{ -+ u32 port, si; -+ u32 ucc; -+ u32 cecr_subblock; -+ -+ port = tdm_c->tdm_port; -+ si = tdm_c->si; -+ ucc = tdm_c->ut_info->uf_info.ucc_num; -+ cecr_subblock = ucc_fast_get_qe_cr_subblock(ucc); -+ -+ qe_issue_cmd(QE_GRACEFUL_STOP_TX, cecr_subblock, -+ (u8) QE_CR_PROTOCOL_UNSPECIFIED, 0); -+ qe_issue_cmd(QE_CLOSE_RX_BD, cecr_subblock, -+ (u8) QE_CR_PROTOCOL_UNSPECIFIED, 0); -+ -+ clrbits8(&qe_immr->si1.siglmr1_h, (0x1 << port)); -+ ucc_fast_disable(tdm_c->uf_private, COMM_DIR_RX); -+ ucc_fast_disable(tdm_c->uf_private, COMM_DIR_TX); -+ free_irq(tdm_c->ut_info->uf_info.irq, tdm_c); -+} -+ -+ -+static void config_tdm(struct tdm_ctrl *tdm_c) -+{ -+ u32 i, j, k; -+ -+ j = 0; -+ k = 0; -+ -+ /* Set Mask Bits */ -+ for (i = 0; i < ACTIVE_CH; i++) { -+ tdm_c->tx_mask[k] |= (1 << j); -+ tdm_c->rx_mask[k] |= (1 << j); -+ j++; -+ if (j >= 16) { -+ j = 0; -+ k++; -+ } -+ } -+ /* physical number of slots in a frame */ -+ tdm_c->physical_num_ts = NUM_TS; -+ -+ /* common receive and transmit pins */ -+ tdm_c->cfg_ctrl.com_pin = 1; -+ -+ /* L1R/TSYNC active logic "1" */ -+ tdm_c->cfg_ctrl.fr_sync_level = 0; -+ -+ /* -+ * TX data on rising edge of clock -+ * RX data on falling edge -+ */ -+ tdm_c->cfg_ctrl.clk_edge = 0; -+ -+ /* Frame sync sampled on falling edge */ -+ tdm_c->cfg_ctrl.fr_sync_edge = 0; -+ -+ /* no bit delay */ -+ tdm_c->cfg_ctrl.rx_fr_sync_delay = 0; -+ -+ /* no bit delay */ -+ tdm_c->cfg_ctrl.tx_fr_sync_delay = 0; -+ -+#ifndef CONFIG_TDM_HW_LB_TSA_SLIC -+ if (tdm_c->leg_slic) { -+ /* Need 1 bit delay for Legrity SLIC */ -+ tdm_c->cfg_ctrl.rx_fr_sync_delay = 1; -+ tdm_c->cfg_ctrl.tx_fr_sync_delay = 1; -+ pr_info("%s Delay for Legerity!\n", __FUNCTION__); -+ } -+#endif -+ -+ tdm_c->cfg_ctrl.active_num_ts = ACTIVE_CH; -+} -+ -+static void tdm_read(u32 client_id, short chn_id, short *pcm_buffer, -+ short len) -+{ -+ int i; -+ u32 phase_rx; -+ /* point to where to start for the current phase data processing */ -+ u32 temp_rx; -+ -+ struct tdm_ctrl *tdm_c = tdm_ctrl[client_id]; -+ -+ u16 *input_tdm_buffer = -+ (u16 *)tdm_c->tdm_input_data; -+ -+ phase_rx = tdm_c->phase_rx; -+ if (phase_rx == 0) -+ phase_rx = MAX_PHASE; -+ else -+ phase_rx -= 1; -+ -+ temp_rx = phase_rx * SAMPLE_DEPTH * EFF_ACTIVE_CH; -+ -+#ifdef UCC_CACHE_SNOOPING_DISABLED -+ flush_dcache_range((size_t) &input_tdm_buffer[temp_rx], -+ (size_t) &input_tdm_buffer[temp_rx + -+ SAMPLE_DEPTH * ACTIVE_CH]); -+#endif -+ for (i = 0; i < len; i++) -+ pcm_buffer[i] = -+ input_tdm_buffer[i * EFF_ACTIVE_CH + temp_rx + chn_id]; -+ -+} -+ -+static void tdm_write(u32 client_id, short chn_id, short *pcm_buffer, -+ short len) -+{ -+ int i; -+ int phase_tx; -+ u32 txb; -+ /* point to where to start for the current phase data processing */ -+ int temp_tx; -+ struct tdm_ctrl *tdm_c = tdm_ctrl[client_id]; -+ -+ u16 *output_tdm_buffer; -+ output_tdm_buffer = (u16 *)tdm_c->tdm_output_data; -+ txb = in_be32(&tdm_c->ucc_pram->tbptr) - -+ in_be32(&tdm_c->ucc_pram->tbase); -+ phase_tx = txb / sizeof(struct qe_bd); -+ -+ if (phase_tx == 0) -+ phase_tx = MAX_PHASE; -+ else -+ phase_tx -= 1; -+ -+ temp_tx = phase_tx * SAMPLE_DEPTH * EFF_ACTIVE_CH; -+ -+ for (i = 0; i < len; i++) -+ output_tdm_buffer[i * EFF_ACTIVE_CH + temp_tx + chn_id] = -+ pcm_buffer[i]; -+ -+#ifdef UCC_CACHE_SNOOPING_DISABLED -+ flush_dcache_range((size_t) &output_tdm_buffer[temp_tx], -+ (size_t) &output_tdm_buffer[temp_tx + SAMPLE_DEPTH * -+ ACTIVE_CH]); -+#endif -+} -+ -+ -+static int tdm_register_client(struct tdm_client *tdm_client) -+{ -+ u32 i; -+ if (num_tdm_clients == num_tdm_devices) { -+ printk(KERN_ERR "all TDM devices busy\n"); -+ return -EBUSY; -+ } -+ -+ for (i = 0; i < num_tdm_devices; i++) { -+ if (!tdm_ctrl[i]->device_busy) { -+ tdm_ctrl[i]->device_busy = 1; -+ break; -+ } -+ } -+ num_tdm_clients++; -+ tdm_client->client_id = i; -+ tdm_client->tdm_read = tdm_read; -+ tdm_client->tdm_write = tdm_write; -+ tdm_client->wakeup_event = -+ &(tdm_ctrl[i]->wakeup_event); -+ return 0; -+} -+EXPORT_SYMBOL_GPL(tdm_register_client); -+ -+static int tdm_deregister_client(struct tdm_client *tdm_client) -+{ -+ num_tdm_clients--; -+ tdm_ctrl[tdm_client->client_id]->device_busy = 0; -+ return 0; -+} -+EXPORT_SYMBOL_GPL(tdm_deregister_client); -+ -+static int ucc_tdm_probe(struct of_device *ofdev, -+ const struct of_device_id *match) -+{ -+ struct device_node *np = ofdev->node; -+ struct resource res; -+ const unsigned int *prop; -+ u32 ucc_num, device_num, err, ret = 0; -+ struct device_node *np_tmp; -+ dma_addr_t physaddr; -+ void *tdm_buff; -+ struct ucc_tdm_info *ut_info; -+ -+ prop = of_get_property(np, "device-id", NULL); -+ if (prop == NULL) { -+ printk(KERN_ERR "ucc_tdm: device-id missing\n"); -+ return -ENODEV; -+ } -+ -+ ucc_num = *prop - 1; -+ if ((ucc_num < 0) || (ucc_num > 7)) -+ return -ENODEV; -+ -+ ut_info = &utdm_info[ucc_num]; -+ if (ut_info->ucc_busy) { -+ printk(KERN_ERR "ucc_tdm: UCC in use by another TDM driver" -+ "instance\n"); -+ return -EBUSY; -+ } -+ if (num_tdm_devices == MAX_NUM_TDM_DEVICES) { -+ printk(KERN_ERR "ucc_tdm: All TDM devices already" -+ " initialized\n"); -+ return -ENODEV; -+ } -+ -+ ut_info->ucc_busy = 1; -+ tdm_ctrl[num_tdm_devices++] = -+ kzalloc(sizeof(struct tdm_ctrl), GFP_KERNEL); -+ if (!tdm_ctrl[num_tdm_devices - 1]) { -+ printk(KERN_ERR "ucc_tdm: no memory to allocate for" -+ " tdm control structure\n"); -+ num_tdm_devices--; -+ return -ENOMEM; -+ } -+ device_num = num_tdm_devices - 1; -+ -+ tdm_ctrl[device_num]->device = &ofdev->dev; -+ tdm_ctrl[device_num]->ut_info = ut_info; -+ -+ tdm_ctrl[device_num]->ut_info->uf_info.ucc_num = ucc_num; -+ -+ prop = of_get_property(np, "fsl,tdm-num", NULL); -+ if (prop == NULL) { -+ ret = -EINVAL; -+ goto get_property_error; -+ } -+ -+ tdm_ctrl[device_num]->tdm_port = *prop - 1; -+ -+ if (tdm_ctrl[device_num]->tdm_port > 3) { -+ ret = -EINVAL; -+ goto get_property_error; -+ } -+ -+ prop = of_get_property(np, "fsl,si-num", NULL); -+ if (prop == NULL) { -+ ret = -EINVAL; -+ goto get_property_error; -+ } -+ -+ tdm_ctrl[device_num]->si = *prop - 1; -+ -+ tdm_ctrl[device_num]->ut_info->uf_info.tdm_tx_clk = -+ of_get_property(np, "fsl,tdm-tx-clk", NULL); -+ if (tdm_ctrl[device_num]->ut_info->uf_info.tdm_tx_clk == NULL) { -+ ret = -EINVAL; -+ goto get_property_error; -+ } -+ -+ tdm_ctrl[device_num]->ut_info->uf_info.tdm_rx_clk = -+ of_get_property(np, "fsl,tdm-rx-clk", NULL); -+ if (tdm_ctrl[device_num]->ut_info->uf_info.tdm_rx_clk == NULL) { -+ ret = -EINVAL; -+ goto get_property_error; -+ } -+ -+ tdm_ctrl[device_num]->ut_info->uf_info.tdm_tx_sync = -+ of_get_property(np, "fsl,tdm-tx-sync", NULL); -+ if (tdm_ctrl[device_num]->ut_info->uf_info.tdm_tx_sync == NULL) { -+ ret = -EINVAL; -+ goto get_property_error; -+ } -+ -+ tdm_ctrl[device_num]->ut_info->uf_info.tdm_rx_sync = -+ of_get_property(np, "fsl,tdm-rx-sync", NULL); -+ if (tdm_ctrl[device_num]->ut_info->uf_info.tdm_rx_sync == NULL) { -+ ret = -EINVAL; -+ goto get_property_error; -+ } -+ -+ tdm_ctrl[device_num]->ut_info->uf_info.irq = -+ irq_of_parse_and_map(np, 0); -+ err = of_address_to_resource(np, 0, &res); -+ if (err) { -+ ret = -EINVAL; -+ goto get_property_error; -+ } -+ tdm_ctrl[device_num]->ut_info->uf_info.regs = res.start; -+ tdm_ctrl[device_num]->uf_regs = of_iomap(np, 0); -+ -+ np_tmp = NULL; -+ np_tmp = of_find_compatible_node(np_tmp, "slic", "legerity-slic"); -+ if (np_tmp != NULL) { -+ tdm_ctrl[device_num]->leg_slic = 1; -+ of_node_put(np_tmp); -+ } else -+ tdm_ctrl[device_num]->leg_slic = 0; -+ -+ config_tdm(tdm_ctrl[device_num]); -+ -+ tdm_buff = dma_alloc_coherent(NULL, 2 * NR_BUFS * SAMPLE_DEPTH * -+ tdm_ctrl[device_num]->cfg_ctrl.active_num_ts, -+ &physaddr, GFP_KERNEL); -+ if (!tdm_buff) { -+ printk(KERN_ERR "ucc-tdm: could not allocate buffer" -+ "descriptors\n"); -+ ret = -ENOMEM; -+ goto alloc_error; -+ } -+ -+ tdm_ctrl[device_num]->tdm_input_data = tdm_buff; -+ tdm_ctrl[device_num]->dma_input_addr = physaddr; -+ -+ tdm_ctrl[device_num]->tdm_output_data = tdm_buff + NR_BUFS * -+ SAMPLE_DEPTH * tdm_ctrl[device_num]->cfg_ctrl.active_num_ts; -+ tdm_ctrl[device_num]->dma_output_addr = physaddr + NR_BUFS * -+ SAMPLE_DEPTH * tdm_ctrl[device_num]->cfg_ctrl.active_num_ts; -+ -+ init_waitqueue_head(&(tdm_ctrl[device_num]->wakeup_event)); -+ -+ ret = tdm_init(tdm_ctrl[device_num]); -+ if (ret != 0) -+ goto tdm_init_error; -+ -+ ret = tdm_start(tdm_ctrl[device_num]); -+ if (ret != 0) -+ goto tdm_start_error; -+ -+ dev_set_drvdata(&(ofdev->dev), tdm_ctrl[device_num]); -+ -+ pr_info("%s UCC based tdm module installed\n", __FUNCTION__); -+ return 0; -+ -+tdm_start_error: -+ tdm_deinit(tdm_ctrl[device_num]); -+tdm_init_error: -+ dma_free_coherent(NULL, 2 * NR_BUFS * SAMPLE_DEPTH * -+ tdm_ctrl[device_num]->cfg_ctrl.active_num_ts, -+ tdm_ctrl[device_num]->tdm_input_data, -+ tdm_ctrl[device_num]->dma_input_addr); -+ -+alloc_error: -+ irq_dispose_mapping(tdm_ctrl[device_num]->ut_info->uf_info.irq); -+ iounmap(tdm_ctrl[device_num]->uf_regs); -+ -+get_property_error: -+ num_tdm_devices--; -+ kfree(tdm_ctrl[device_num]); -+ ut_info->ucc_busy = 0; -+ return ret; -+} -+ -+static int ucc_tdm_remove(struct of_device *ofdev) -+{ -+ struct tdm_ctrl *tdm_c; -+ struct ucc_tdm_info *ut_info; -+ u32 ucc_num; -+ -+ tdm_c = dev_get_drvdata(&(ofdev->dev)); -+ dev_set_drvdata(&(ofdev->dev), NULL); -+ ucc_num = tdm_c->ut_info->uf_info.ucc_num; -+ ut_info = &utdm_info[ucc_num]; -+ tdm_stop(tdm_c); -+ tdm_deinit(tdm_c); -+ -+ ucc_fast_free(tdm_c->uf_private); -+ -+ dma_free_coherent(NULL, 2 * NR_BUFS * SAMPLE_DEPTH * -+ tdm_c->cfg_ctrl.active_num_ts, -+ tdm_c->tdm_input_data, -+ tdm_c->dma_input_addr); -+ -+ irq_dispose_mapping(tdm_c->ut_info->uf_info.irq); -+ iounmap(tdm_c->uf_regs); -+ -+ num_tdm_devices--; -+ kfree(tdm_c); -+ -+ ut_info->ucc_busy = 0; -+ -+ pr_info("%s UCC based tdm module uninstalled\n", __FUNCTION__); -+ return 0; -+} -+ -+const struct of_device_id ucc_tdm_match[] = { -+ { .type = "tdm", .compatible = "fsl,ucc-tdm", }, -+ {}, -+}; -+ -+MODULE_DEVICE_TABLE(of, ucc_tdm_match); -+ -+static struct of_platform_driver ucc_tdm_driver = { -+ .name = DRV_NAME, -+ .match_table = ucc_tdm_match, -+ .probe = ucc_tdm_probe, -+ .remove = ucc_tdm_remove, -+ .driver = { -+ .name = DRV_NAME, -+ .owner = THIS_MODULE, -+ }, -+}; -+ -+static int __init ucc_tdm_init(void) -+{ -+ u32 i; -+ -+ pr_info("ucc_tdm: " DRV_DESC "\n"); -+ for (i = 0; i < 8; i++) -+ memcpy(&(utdm_info[i]), &utdm_primary_info, -+ sizeof(utdm_primary_info)); -+ -+ return of_register_platform_driver(&ucc_tdm_driver); -+} -+ -+static void __exit ucc_tdm_exit(void) -+{ -+ of_unregister_platform_driver(&ucc_tdm_driver); -+} -+ -+module_init(ucc_tdm_init); -+module_exit(ucc_tdm_exit); -+MODULE_AUTHOR("Freescale Semiconductor, Inc"); -+MODULE_DESCRIPTION(DRV_DESC); -+MODULE_LICENSE("GPL"); ---- a/drivers/misc/Makefile -+++ b/drivers/misc/Makefile -@@ -9,6 +9,7 @@ obj-$(CONFIG_AD525X_DPOT_SPI) += ad525x_ - obj-$(CONFIG_ATMEL_PWM) += atmel_pwm.o - obj-$(CONFIG_ATMEL_SSC) += atmel-ssc.o - obj-$(CONFIG_ATMEL_TCLIB) += atmel_tclib.o -+obj-$(CONFIG_UCC_TDM) += ucc_tdm.o - obj-$(CONFIG_BMP085) += bmp085.o - obj-$(CONFIG_ICS932S401) += ics932s401.o - obj-$(CONFIG_LKDTM) += lkdtm.o ---- a/drivers/misc/Kconfig -+++ b/drivers/misc/Kconfig -@@ -164,6 +164,20 @@ config ATMEL_SSC - - If unsure, say N. - -+config UCC_TDM -+ tristate "Freescale UCC TDM Driver" -+ depends on QUICC_ENGINE && UCC_FAST -+ default n -+ help -+ The TDM driver is for UCC based TDM devices for example, TDM device on -+ MPC832x RDB. Select it to run PowerVoIP on MPC832x RDB board. -+ The TDM driver can interface with SLIC kind of devices to transmit -+ and receive TDM samples. The TDM driver receives Time Division -+ multiplexed samples(for different channels) from the SLIC device, -+ demutiplexes them and sends them to the upper layers. At the transmit -+ end the TDM drivers receives samples for different channels, it -+ multiplexes them and sends them to the SLIC device. -+ - config ENCLOSURE_SERVICES - tristate "Enclosure Services" - default n ---- a/arch/powerpc/include/asm/ucc_fast.h -+++ b/arch/powerpc/include/asm/ucc_fast.h -@@ -150,6 +150,10 @@ struct ucc_fast_info { - enum ucc_fast_rx_decoding_method renc; - enum ucc_fast_transparent_tcrc tcrc; - enum ucc_fast_sync_len synl; -+ char *tdm_rx_clk; -+ char *tdm_tx_clk; -+ char *tdm_rx_sync; -+ char *tdm_tx_sync; - }; - - struct ucc_fast_private { ---- a/arch/powerpc/include/asm/qe.h -+++ b/arch/powerpc/include/asm/qe.h -@@ -669,6 +669,14 @@ struct ucc_slow_pram { - #define UCC_GETH_UCCE_RXF1 0x00000002 - #define UCC_GETH_UCCE_RXF0 0x00000001 - -+/* Transparent UCC Event Register (UCCE) */ -+#define UCC_TRANS_UCCE_GRA 0x0080 -+#define UCC_TRANS_UCCE_TXE 0x0010 -+#define UCC_TRANS_UCCE_RXF 0x0008 -+#define UCC_TRANS_UCCE_BSY 0x0004 -+#define UCC_TRANS_UCCE_TXB 0x0002 -+#define UCC_TRANS_UCCE_RXB 0x0001 -+ - /* UCC Protocol Specific Mode Register (UPSMR), when used for UART */ - #define UCC_UART_UPSMR_FLC 0x8000 - #define UCC_UART_UPSMR_SL 0x4000 |