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Diffstat (limited to 'qemu/roms/u-boot/drivers/mmc/sh_mmcif.c')
-rw-r--r--qemu/roms/u-boot/drivers/mmc/sh_mmcif.c609
1 files changed, 0 insertions, 609 deletions
diff --git a/qemu/roms/u-boot/drivers/mmc/sh_mmcif.c b/qemu/roms/u-boot/drivers/mmc/sh_mmcif.c
deleted file mode 100644
index ed83a14c2..000000000
--- a/qemu/roms/u-boot/drivers/mmc/sh_mmcif.c
+++ /dev/null
@@ -1,609 +0,0 @@
-/*
- * MMCIF driver.
- *
- * Copyright (C) 2011 Renesas Solutions Corp.
- *
- * 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.
- */
-
-#include <config.h>
-#include <common.h>
-#include <watchdog.h>
-#include <command.h>
-#include <mmc.h>
-#include <malloc.h>
-#include <asm/errno.h>
-#include <asm/io.h>
-#include "sh_mmcif.h"
-
-#define DRIVER_NAME "sh_mmcif"
-
-static int sh_mmcif_intr(void *dev_id)
-{
- struct sh_mmcif_host *host = dev_id;
- u32 state = 0;
-
- state = sh_mmcif_read(&host->regs->ce_int);
- state &= sh_mmcif_read(&host->regs->ce_int_mask);
-
- if (state & INT_RBSYE) {
- sh_mmcif_write(~(INT_RBSYE | INT_CRSPE), &host->regs->ce_int);
- sh_mmcif_bitclr(MASK_MRBSYE, &host->regs->ce_int_mask);
- goto end;
- } else if (state & INT_CRSPE) {
- sh_mmcif_write(~INT_CRSPE, &host->regs->ce_int);
- sh_mmcif_bitclr(MASK_MCRSPE, &host->regs->ce_int_mask);
- /* one more interrupt (INT_RBSYE) */
- if (sh_mmcif_read(&host->regs->ce_cmd_set) & CMD_SET_RBSY)
- return -EAGAIN;
- goto end;
- } else if (state & INT_BUFREN) {
- sh_mmcif_write(~INT_BUFREN, &host->regs->ce_int);
- sh_mmcif_bitclr(MASK_MBUFREN, &host->regs->ce_int_mask);
- goto end;
- } else if (state & INT_BUFWEN) {
- sh_mmcif_write(~INT_BUFWEN, &host->regs->ce_int);
- sh_mmcif_bitclr(MASK_MBUFWEN, &host->regs->ce_int_mask);
- goto end;
- } else if (state & INT_CMD12DRE) {
- sh_mmcif_write(~(INT_CMD12DRE | INT_CMD12RBE | INT_CMD12CRE |
- INT_BUFRE), &host->regs->ce_int);
- sh_mmcif_bitclr(MASK_MCMD12DRE, &host->regs->ce_int_mask);
- goto end;
- } else if (state & INT_BUFRE) {
- sh_mmcif_write(~INT_BUFRE, &host->regs->ce_int);
- sh_mmcif_bitclr(MASK_MBUFRE, &host->regs->ce_int_mask);
- goto end;
- } else if (state & INT_DTRANE) {
- sh_mmcif_write(~INT_DTRANE, &host->regs->ce_int);
- sh_mmcif_bitclr(MASK_MDTRANE, &host->regs->ce_int_mask);
- goto end;
- } else if (state & INT_CMD12RBE) {
- sh_mmcif_write(~(INT_CMD12RBE | INT_CMD12CRE),
- &host->regs->ce_int);
- sh_mmcif_bitclr(MASK_MCMD12RBE, &host->regs->ce_int_mask);
- goto end;
- } else if (state & INT_ERR_STS) {
- /* err interrupts */
- sh_mmcif_write(~state, &host->regs->ce_int);
- sh_mmcif_bitclr(state, &host->regs->ce_int_mask);
- goto err;
- } else
- return -EAGAIN;
-
-err:
- host->sd_error = 1;
- debug("%s: int err state = %08x\n", DRIVER_NAME, state);
-end:
- host->wait_int = 1;
- return 0;
-}
-
-static int mmcif_wait_interrupt_flag(struct sh_mmcif_host *host)
-{
- int timeout = 10000000;
-
- while (1) {
- timeout--;
- if (timeout < 0) {
- printf("timeout\n");
- return 0;
- }
-
- if (!sh_mmcif_intr(host))
- break;
-
- udelay(1); /* 1 usec */
- }
-
- return 1; /* Return value: NOT 0 = complete waiting */
-}
-
-static void sh_mmcif_clock_control(struct sh_mmcif_host *host, unsigned int clk)
-{
- int i;
-
- sh_mmcif_bitclr(CLK_ENABLE, &host->regs->ce_clk_ctrl);
- sh_mmcif_bitclr(CLK_CLEAR, &host->regs->ce_clk_ctrl);
-
- if (!clk)
- return;
- if (clk == CLKDEV_EMMC_DATA) {
- sh_mmcif_bitset(CLK_PCLK, &host->regs->ce_clk_ctrl);
- } else {
- for (i = 1; (unsigned int)host->clk / (1 << i) >= clk; i++)
- ;
- sh_mmcif_bitset((i - 1) << 16, &host->regs->ce_clk_ctrl);
- }
- sh_mmcif_bitset(CLK_ENABLE, &host->regs->ce_clk_ctrl);
-}
-
-static void sh_mmcif_sync_reset(struct sh_mmcif_host *host)
-{
- u32 tmp;
-
- tmp = sh_mmcif_read(&host->regs->ce_clk_ctrl) & (CLK_ENABLE |
- CLK_CLEAR);
-
- sh_mmcif_write(SOFT_RST_ON, &host->regs->ce_version);
- sh_mmcif_write(SOFT_RST_OFF, &host->regs->ce_version);
- sh_mmcif_bitset(tmp | SRSPTO_256 | SRBSYTO_29 | SRWDTO_29 | SCCSTO_29,
- &host->regs->ce_clk_ctrl);
- /* byte swap on */
- sh_mmcif_bitset(BUF_ACC_ATYP, &host->regs->ce_buf_acc);
-}
-
-static int sh_mmcif_error_manage(struct sh_mmcif_host *host)
-{
- u32 state1, state2;
- int ret, timeout = 10000000;
-
- host->sd_error = 0;
- host->wait_int = 0;
-
- state1 = sh_mmcif_read(&host->regs->ce_host_sts1);
- state2 = sh_mmcif_read(&host->regs->ce_host_sts2);
- debug("%s: ERR HOST_STS1 = %08x\n", \
- DRIVER_NAME, sh_mmcif_read(&host->regs->ce_host_sts1));
- debug("%s: ERR HOST_STS2 = %08x\n", \
- DRIVER_NAME, sh_mmcif_read(&host->regs->ce_host_sts2));
-
- if (state1 & STS1_CMDSEQ) {
- debug("%s: Forced end of command sequence\n", DRIVER_NAME);
- sh_mmcif_bitset(CMD_CTRL_BREAK, &host->regs->ce_cmd_ctrl);
- sh_mmcif_bitset(~CMD_CTRL_BREAK, &host->regs->ce_cmd_ctrl);
- while (1) {
- timeout--;
- if (timeout < 0) {
- printf(DRIVER_NAME": Forceed end of " \
- "command sequence timeout err\n");
- return -EILSEQ;
- }
- if (!(sh_mmcif_read(&host->regs->ce_host_sts1)
- & STS1_CMDSEQ))
- break;
- }
- sh_mmcif_sync_reset(host);
- return -EILSEQ;
- }
-
- if (state2 & STS2_CRC_ERR)
- ret = -EILSEQ;
- else if (state2 & STS2_TIMEOUT_ERR)
- ret = TIMEOUT;
- else
- ret = -EILSEQ;
- return ret;
-}
-
-static int sh_mmcif_single_read(struct sh_mmcif_host *host,
- struct mmc_data *data)
-{
- long time;
- u32 blocksize, i;
- unsigned long *p = (unsigned long *)data->dest;
-
- if ((unsigned long)p & 0x00000001) {
- printf("%s: The data pointer is unaligned.", __func__);
- return -EIO;
- }
-
- host->wait_int = 0;
-
- /* buf read enable */
- sh_mmcif_bitset(MASK_MBUFREN, &host->regs->ce_int_mask);
- time = mmcif_wait_interrupt_flag(host);
- if (time == 0 || host->sd_error != 0)
- return sh_mmcif_error_manage(host);
-
- host->wait_int = 0;
- blocksize = (BLOCK_SIZE_MASK &
- sh_mmcif_read(&host->regs->ce_block_set)) + 3;
- for (i = 0; i < blocksize / 4; i++)
- *p++ = sh_mmcif_read(&host->regs->ce_data);
-
- /* buffer read end */
- sh_mmcif_bitset(MASK_MBUFRE, &host->regs->ce_int_mask);
- time = mmcif_wait_interrupt_flag(host);
- if (time == 0 || host->sd_error != 0)
- return sh_mmcif_error_manage(host);
-
- host->wait_int = 0;
- return 0;
-}
-
-static int sh_mmcif_multi_read(struct sh_mmcif_host *host,
- struct mmc_data *data)
-{
- long time;
- u32 blocksize, i, j;
- unsigned long *p = (unsigned long *)data->dest;
-
- if ((unsigned long)p & 0x00000001) {
- printf("%s: The data pointer is unaligned.", __func__);
- return -EIO;
- }
-
- host->wait_int = 0;
- blocksize = BLOCK_SIZE_MASK & sh_mmcif_read(&host->regs->ce_block_set);
- for (j = 0; j < data->blocks; j++) {
- sh_mmcif_bitset(MASK_MBUFREN, &host->regs->ce_int_mask);
- time = mmcif_wait_interrupt_flag(host);
- if (time == 0 || host->sd_error != 0)
- return sh_mmcif_error_manage(host);
-
- host->wait_int = 0;
- for (i = 0; i < blocksize / 4; i++)
- *p++ = sh_mmcif_read(&host->regs->ce_data);
-
- WATCHDOG_RESET();
- }
- return 0;
-}
-
-static int sh_mmcif_single_write(struct sh_mmcif_host *host,
- struct mmc_data *data)
-{
- long time;
- u32 blocksize, i;
- const unsigned long *p = (unsigned long *)data->dest;
-
- if ((unsigned long)p & 0x00000001) {
- printf("%s: The data pointer is unaligned.", __func__);
- return -EIO;
- }
-
- host->wait_int = 0;
- sh_mmcif_bitset(MASK_MBUFWEN, &host->regs->ce_int_mask);
-
- time = mmcif_wait_interrupt_flag(host);
- if (time == 0 || host->sd_error != 0)
- return sh_mmcif_error_manage(host);
-
- host->wait_int = 0;
- blocksize = (BLOCK_SIZE_MASK &
- sh_mmcif_read(&host->regs->ce_block_set)) + 3;
- for (i = 0; i < blocksize / 4; i++)
- sh_mmcif_write(*p++, &host->regs->ce_data);
-
- /* buffer write end */
- sh_mmcif_bitset(MASK_MDTRANE, &host->regs->ce_int_mask);
-
- time = mmcif_wait_interrupt_flag(host);
- if (time == 0 || host->sd_error != 0)
- return sh_mmcif_error_manage(host);
-
- host->wait_int = 0;
- return 0;
-}
-
-static int sh_mmcif_multi_write(struct sh_mmcif_host *host,
- struct mmc_data *data)
-{
- long time;
- u32 i, j, blocksize;
- const unsigned long *p = (unsigned long *)data->dest;
-
- if ((unsigned long)p & 0x00000001) {
- printf("%s: The data pointer is unaligned.", __func__);
- return -EIO;
- }
-
- host->wait_int = 0;
- blocksize = BLOCK_SIZE_MASK & sh_mmcif_read(&host->regs->ce_block_set);
- for (j = 0; j < data->blocks; j++) {
- sh_mmcif_bitset(MASK_MBUFWEN, &host->regs->ce_int_mask);
-
- time = mmcif_wait_interrupt_flag(host);
-
- if (time == 0 || host->sd_error != 0)
- return sh_mmcif_error_manage(host);
-
- host->wait_int = 0;
- for (i = 0; i < blocksize / 4; i++)
- sh_mmcif_write(*p++, &host->regs->ce_data);
-
- WATCHDOG_RESET();
- }
- return 0;
-}
-
-static void sh_mmcif_get_response(struct sh_mmcif_host *host,
- struct mmc_cmd *cmd)
-{
- if (cmd->resp_type & MMC_RSP_136) {
- cmd->response[0] = sh_mmcif_read(&host->regs->ce_resp3);
- cmd->response[1] = sh_mmcif_read(&host->regs->ce_resp2);
- cmd->response[2] = sh_mmcif_read(&host->regs->ce_resp1);
- cmd->response[3] = sh_mmcif_read(&host->regs->ce_resp0);
- debug(" RESP %08x, %08x, %08x, %08x\n", cmd->response[0],
- cmd->response[1], cmd->response[2], cmd->response[3]);
- } else {
- cmd->response[0] = sh_mmcif_read(&host->regs->ce_resp0);
- }
-}
-
-static void sh_mmcif_get_cmd12response(struct sh_mmcif_host *host,
- struct mmc_cmd *cmd)
-{
- cmd->response[0] = sh_mmcif_read(&host->regs->ce_resp_cmd12);
-}
-
-static u32 sh_mmcif_set_cmd(struct sh_mmcif_host *host,
- struct mmc_data *data, struct mmc_cmd *cmd)
-{
- u32 tmp = 0;
- u32 opc = cmd->cmdidx;
-
- /* Response Type check */
- switch (cmd->resp_type) {
- case MMC_RSP_NONE:
- tmp |= CMD_SET_RTYP_NO;
- break;
- case MMC_RSP_R1:
- case MMC_RSP_R1b:
- case MMC_RSP_R3:
- tmp |= CMD_SET_RTYP_6B;
- break;
- case MMC_RSP_R2:
- tmp |= CMD_SET_RTYP_17B;
- break;
- default:
- printf(DRIVER_NAME": Not support type response.\n");
- break;
- }
-
- /* RBSY */
- if (opc == MMC_CMD_SWITCH)
- tmp |= CMD_SET_RBSY;
-
- /* WDAT / DATW */
- if (host->data) {
- tmp |= CMD_SET_WDAT;
- switch (host->bus_width) {
- case MMC_BUS_WIDTH_1:
- tmp |= CMD_SET_DATW_1;
- break;
- case MMC_BUS_WIDTH_4:
- tmp |= CMD_SET_DATW_4;
- break;
- case MMC_BUS_WIDTH_8:
- tmp |= CMD_SET_DATW_8;
- break;
- default:
- printf(DRIVER_NAME": Not support bus width.\n");
- break;
- }
- }
- /* DWEN */
- if (opc == MMC_CMD_WRITE_SINGLE_BLOCK ||
- opc == MMC_CMD_WRITE_MULTIPLE_BLOCK)
- tmp |= CMD_SET_DWEN;
- /* CMLTE/CMD12EN */
- if (opc == MMC_CMD_READ_MULTIPLE_BLOCK ||
- opc == MMC_CMD_WRITE_MULTIPLE_BLOCK) {
- tmp |= CMD_SET_CMLTE | CMD_SET_CMD12EN;
- sh_mmcif_bitset(data->blocks << 16, &host->regs->ce_block_set);
- }
- /* RIDXC[1:0] check bits */
- if (opc == MMC_CMD_SEND_OP_COND || opc == MMC_CMD_ALL_SEND_CID ||
- opc == MMC_CMD_SEND_CSD || opc == MMC_CMD_SEND_CID)
- tmp |= CMD_SET_RIDXC_BITS;
- /* RCRC7C[1:0] check bits */
- if (opc == MMC_CMD_SEND_OP_COND)
- tmp |= CMD_SET_CRC7C_BITS;
- /* RCRC7C[1:0] internal CRC7 */
- if (opc == MMC_CMD_ALL_SEND_CID ||
- opc == MMC_CMD_SEND_CSD || opc == MMC_CMD_SEND_CID)
- tmp |= CMD_SET_CRC7C_INTERNAL;
-
- return opc = ((opc << 24) | tmp);
-}
-
-static u32 sh_mmcif_data_trans(struct sh_mmcif_host *host,
- struct mmc_data *data, u16 opc)
-{
- u32 ret;
-
- switch (opc) {
- case MMC_CMD_READ_MULTIPLE_BLOCK:
- ret = sh_mmcif_multi_read(host, data);
- break;
- case MMC_CMD_WRITE_MULTIPLE_BLOCK:
- ret = sh_mmcif_multi_write(host, data);
- break;
- case MMC_CMD_WRITE_SINGLE_BLOCK:
- ret = sh_mmcif_single_write(host, data);
- break;
- case MMC_CMD_READ_SINGLE_BLOCK:
- case MMC_CMD_SEND_EXT_CSD:
- ret = sh_mmcif_single_read(host, data);
- break;
- default:
- printf(DRIVER_NAME": NOT SUPPORT CMD = d'%08d\n", opc);
- ret = -EINVAL;
- break;
- }
- return ret;
-}
-
-static int sh_mmcif_start_cmd(struct sh_mmcif_host *host,
- struct mmc_data *data, struct mmc_cmd *cmd)
-{
- long time;
- int ret = 0, mask = 0;
- u32 opc = cmd->cmdidx;
-
- if (opc == MMC_CMD_STOP_TRANSMISSION) {
- /* MMCIF sends the STOP command automatically */
- if (host->last_cmd == MMC_CMD_READ_MULTIPLE_BLOCK)
- sh_mmcif_bitset(MASK_MCMD12DRE,
- &host->regs->ce_int_mask);
- else
- sh_mmcif_bitset(MASK_MCMD12RBE,
- &host->regs->ce_int_mask);
-
- time = mmcif_wait_interrupt_flag(host);
- if (time == 0 || host->sd_error != 0)
- return sh_mmcif_error_manage(host);
-
- sh_mmcif_get_cmd12response(host, cmd);
- return 0;
- }
- if (opc == MMC_CMD_SWITCH)
- mask = MASK_MRBSYE;
- else
- mask = MASK_MCRSPE;
-
- mask |= MASK_MCMDVIO | MASK_MBUFVIO | MASK_MWDATERR |
- MASK_MRDATERR | MASK_MRIDXERR | MASK_MRSPERR |
- MASK_MCCSTO | MASK_MCRCSTO | MASK_MWDATTO |
- MASK_MRDATTO | MASK_MRBSYTO | MASK_MRSPTO;
-
- if (host->data) {
- sh_mmcif_write(0, &host->regs->ce_block_set);
- sh_mmcif_write(data->blocksize, &host->regs->ce_block_set);
- }
- opc = sh_mmcif_set_cmd(host, data, cmd);
-
- sh_mmcif_write(INT_START_MAGIC, &host->regs->ce_int);
- sh_mmcif_write(mask, &host->regs->ce_int_mask);
-
- debug("CMD%d ARG:%08x\n", cmd->cmdidx, cmd->cmdarg);
- /* set arg */
- sh_mmcif_write(cmd->cmdarg, &host->regs->ce_arg);
- host->wait_int = 0;
- /* set cmd */
- sh_mmcif_write(opc, &host->regs->ce_cmd_set);
-
- time = mmcif_wait_interrupt_flag(host);
- if (time == 0)
- return sh_mmcif_error_manage(host);
-
- if (host->sd_error) {
- switch (cmd->cmdidx) {
- case MMC_CMD_ALL_SEND_CID:
- case MMC_CMD_SELECT_CARD:
- case MMC_CMD_APP_CMD:
- ret = TIMEOUT;
- break;
- default:
- printf(DRIVER_NAME": Cmd(d'%d) err\n", cmd->cmdidx);
- ret = sh_mmcif_error_manage(host);
- break;
- }
- host->sd_error = 0;
- host->wait_int = 0;
- return ret;
- }
-
- /* if no response */
- if (!(opc & 0x00C00000))
- return 0;
-
- if (host->wait_int == 1) {
- sh_mmcif_get_response(host, cmd);
- host->wait_int = 0;
- }
- if (host->data)
- ret = sh_mmcif_data_trans(host, data, cmd->cmdidx);
- host->last_cmd = cmd->cmdidx;
-
- return ret;
-}
-
-static int sh_mmcif_request(struct mmc *mmc, struct mmc_cmd *cmd,
- struct mmc_data *data)
-{
- struct sh_mmcif_host *host = mmc->priv;
- int ret;
-
- WATCHDOG_RESET();
-
- switch (cmd->cmdidx) {
- case MMC_CMD_APP_CMD:
- return TIMEOUT;
- case MMC_CMD_SEND_EXT_CSD: /* = SD_SEND_IF_COND (8) */
- if (data)
- /* ext_csd */
- break;
- else
- /* send_if_cond cmd (not support) */
- return TIMEOUT;
- default:
- break;
- }
- host->sd_error = 0;
- host->data = data;
- ret = sh_mmcif_start_cmd(host, data, cmd);
- host->data = NULL;
-
- return ret;
-}
-
-static void sh_mmcif_set_ios(struct mmc *mmc)
-{
- struct sh_mmcif_host *host = mmc->priv;
-
- if (mmc->clock)
- sh_mmcif_clock_control(host, mmc->clock);
-
- if (mmc->bus_width == 8)
- host->bus_width = MMC_BUS_WIDTH_8;
- else if (mmc->bus_width == 4)
- host->bus_width = MMC_BUS_WIDTH_4;
- else
- host->bus_width = MMC_BUS_WIDTH_1;
-
- debug("clock = %d, buswidth = %d\n", mmc->clock, mmc->bus_width);
-}
-
-static int sh_mmcif_init(struct mmc *mmc)
-{
- struct sh_mmcif_host *host = mmc->priv;
-
- sh_mmcif_sync_reset(host);
- sh_mmcif_write(MASK_ALL, &host->regs->ce_int_mask);
- return 0;
-}
-
-static const struct mmc_ops sh_mmcif_ops = {
- .send_cmd = sh_mmcif_request,
- .set_ios = sh_mmcif_set_ios,
- .init = sh_mmcif_init,
-};
-
-static struct mmc_config sh_mmcif_cfg = {
- .name = DRIVER_NAME,
- .ops = &sh_mmcif_ops,
- .host_caps = MMC_MODE_HS | MMC_MODE_HS_52MHz | MMC_MODE_4BIT |
- MMC_MODE_8BIT | MMC_MODE_HC,
- .voltages = MMC_VDD_32_33 | MMC_VDD_33_34,
- .f_min = CLKDEV_MMC_INIT,
- .f_max = CLKDEV_EMMC_DATA,
- .b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT,
-};
-
-int mmcif_mmc_init(void)
-{
- struct mmc *mmc;
- struct sh_mmcif_host *host = NULL;
-
- host = malloc(sizeof(struct sh_mmcif_host));
- if (!host)
- return -ENOMEM;
- memset(host, 0, sizeof(*host));
-
- host->regs = (struct sh_mmcif_regs *)CONFIG_SH_MMCIF_ADDR;
- host->clk = CONFIG_SH_MMCIF_CLK;
-
- mmc = mmc_create(&sh_mmcif_cfg, host);
- if (mmc == NULL) {
- free(host);
- return -ENOMEM;
- }
-
- return 0;
-}