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ftsdc010: add support of ftsdc010 mmc controller 

Faraday FTSDC010 controller is a SD/MMC controller for SoC chip.

Signed-off-by: Macpaul Lin <macpaul@andestech.com>
This commit is contained in:
Macpaul Lin 2011-07-20 21:29:58 +00:00 committed by Andy Fleming
parent aaf3d41aa0
commit f8ef0d4f46
3 changed files with 913 additions and 0 deletions
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1
drivers/mmc/Makefile
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@ -29,6 +29,7 @@ COBJS-$(CONFIG_ATMEL_MCI) += atmel_mci.o
COBJS-$(CONFIG_BFIN_SDH) += bfin_sdh.o
COBJS-$(CONFIG_DAVINCI_MMC) += davinci_mmc.o
COBJS-$(CONFIG_FSL_ESDHC) += fsl_esdhc.o
COBJS-$(CONFIG_FTSDC010) += ftsdc010_esdhc.o
COBJS-$(CONFIG_GENERIC_MMC) += mmc.o
COBJS-$(CONFIG_GENERIC_ATMEL_MCI) += gen_atmel_mci.o
COBJS-$(CONFIG_MMC_SPI) += mmc_spi.o

667
drivers/mmc/ftsdc010_esdhc.c Normal file
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@ -0,0 +1,667 @@
/*
* Copyright (C) 2011 Andes Technology Corporation
* Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <config.h>
#include <common.h>
#include <mmc.h>
#include <asm/io.h>
#include <faraday/ftsdc010.h>
/*
* supported mmc hosts
* setting the number CONFIG_FTSDC010_NUMBER in your configuration file.
*/
static struct mmc ftsdc010_dev[CONFIG_FTSDC010_NUMBER];
static struct mmc_host ftsdc010_host[CONFIG_FTSDC010_NUMBER];
static struct ftsdc010_mmc *ftsdc010_get_base_mmc(int dev_index)
{
return (struct ftsdc010_mmc *)CONFIG_FTSDC010_BASE + dev_index;
}
#ifdef DEBUG
static void ftsdc010_dump_reg(struct mmc_host *host)
{
debug("cmd: %08x\n", readl(&host->reg->cmd));
debug("argu: %08x\n", readl(&host->reg->argu));
debug("rsp0: %08x\n", readl(&host->reg->rsp0));
debug("rsp1: %08x\n", readl(&host->reg->rsp1));
debug("rsp2: %08x\n", readl(&host->reg->rsp2));
debug("rsp3: %08x\n", readl(&host->reg->rsp3));
debug("rsp_cmd: %08x\n", readl(&host->reg->rsp_cmd));
debug("dcr: %08x\n", readl(&host->reg->dcr));
debug("dtr: %08x\n", readl(&host->reg->dtr));
debug("dlr: %08x\n", readl(&host->reg->dlr));
debug("status: %08x\n", readl(&host->reg->status));
debug("clr: %08x\n", readl(&host->reg->clr));
debug("int_mask: %08x\n", readl(&host->reg->int_mask));
debug("pcr: %08x\n", readl(&host->reg->pcr));
debug("ccr: %08x\n", readl(&host->reg->ccr));
debug("bwr: %08x\n", readl(&host->reg->bwr));
debug("dwr: %08x\n", readl(&host->reg->dwr));
debug("feature: %08x\n", readl(&host->reg->feature));
debug("rev: %08x\n", readl(&host->reg->rev));
}
#endif
static unsigned int enable_imask(struct ftsdc010_mmc *reg, unsigned int imask)
{
unsigned int newmask;
newmask = readl(&reg->int_mask);
newmask |= imask;
writel(newmask, &reg->int_mask);
return newmask;
}
static void ftsdc010_pio_read(struct mmc_host *host, char *buf, unsigned int size)
{
unsigned int fifo;
unsigned int fifo_words;
unsigned int *ptr;
unsigned int status;
unsigned int retry = 0;
/* get_data_buffer */
ptr = (unsigned int *)buf;
while (size) {
status = readl(&host->reg->status);
if (status & FTSDC010_STATUS_FIFO_ORUN) {
fifo = host->fifo_len > size ?
size : host->fifo_len;
size -= fifo;
fifo_words = fifo >> 2;
while (fifo_words--)
*ptr++ = readl(&host->reg->dwr);
/*
* for adding some delays for SD card to put
* data into FIFO again
*/
udelay(4*FTSDC010_DELAY_UNIT);
#ifdef CONFIG_FTSDC010_SDIO
/* sdio allow non-power-of-2 blksz */
if (fifo & 3) {
unsigned int n = fifo & 3;
unsigned int data = readl(&host->reg->dwr);
unsigned char *p = (unsigned char *)ptr;
while (n--) {
*p++ = data;
data >>= 8;
}
}
#endif
} else {
udelay(1);
if (++retry >= FTSDC010_PIO_RETRY) {
debug("%s: PIO_RETRY timeout\n", __func__);
return;
}
}
}
}
static void ftsdc010_pio_write(struct mmc_host *host, const char *buf,
unsigned int size)
{
unsigned int fifo;
unsigned int *ptr;
unsigned int status;
unsigned int retry = 0;
/* get data buffer */
ptr = (unsigned int *)buf;
while (size) {
status = readl(&host->reg->status);
if (status & FTSDC010_STATUS_FIFO_ORUN) {
fifo = host->fifo_len > size ?
size : host->fifo_len;
size -= fifo;
fifo = (fifo + 3) >> 2;
while (fifo--) {
writel(*ptr, &host->reg->dwr);
ptr++;
}
} else {
udelay(1);
if (++retry >= FTSDC010_PIO_RETRY) {
debug("%s: PIO_RETRY timeout\n", __func__);
return;
}
}
}
}
static int ftsdc010_pio_check_status(struct mmc *mmc, struct mmc_cmd *cmd,
struct mmc_data *data)
{
struct mmc_host *host = mmc->priv;
unsigned int sta, clear;
unsigned int i;
/* check response and hardware status */
clear = 0;
/* chech CMD_SEND */
for (i = 0; i < FTSDC010_CMD_RETRY; i++) {
sta = readl(&host->reg->status);
/* Command Complete */
if (sta & FTSDC010_STATUS_CMD_SEND) {
if (!data)
clear |= FTSDC010_CLR_CMD_SEND;
break;
}
}
if (i > FTSDC010_CMD_RETRY) {
printf("%s: send command timeout\n", __func__);
return TIMEOUT;
}
/* debug: print status register and command index*/
debug("sta: %08x cmd %d\n", sta, cmd->cmdidx);
/* handle data FIFO */
if ((sta & FTSDC010_STATUS_FIFO_ORUN) ||
(sta & FTSDC010_STATUS_FIFO_URUN)) {
/* Wrong DATA FIFO Flag */
if (data == NULL)
printf("%s, data fifo wrong: sta: %08x cmd %d\n",
__func__, sta, cmd->cmdidx);
if (sta & FTSDC010_STATUS_FIFO_ORUN)
clear |= FTSDC010_STATUS_FIFO_ORUN;
if (sta & FTSDC010_STATUS_FIFO_URUN)
clear |= FTSDC010_STATUS_FIFO_URUN;
}
/* check RSP TIMEOUT or FAIL */
if (sta & FTSDC010_STATUS_RSP_TIMEOUT) {
/* RSP TIMEOUT */
debug("%s: RSP timeout: sta: %08x cmd %d\n",
__func__, sta, cmd->cmdidx);
clear |= FTSDC010_CLR_RSP_TIMEOUT;
writel(clear, &host->reg->clr);
return TIMEOUT;
} else if (sta & FTSDC010_STATUS_RSP_CRC_FAIL) {
/* clear response fail bit */
debug("%s: RSP CRC FAIL: sta: %08x cmd %d\n",
__func__, sta, cmd->cmdidx);
clear |= FTSDC010_CLR_RSP_CRC_FAIL;
writel(clear, &host->reg->clr);
return 0;
} else if (sta & FTSDC010_STATUS_RSP_CRC_OK) {
/* clear response CRC OK bit */
clear |= FTSDC010_CLR_RSP_CRC_OK;
}
/* check DATA TIMEOUT or FAIL */
if (data) {
if (sta & FTSDC010_STATUS_DATA_TIMEOUT) {
/* DATA TIMEOUT */
debug("%s: DATA TIMEOUT: sta: %08x\n",
__func__, sta);
clear |= FTSDC010_STATUS_DATA_TIMEOUT;
writel(sta, &host->reg->clr);
return TIMEOUT;
} else if (sta & FTSDC010_STATUS_DATA_CRC_FAIL) {
/* Error Interrupt */
debug("%s: DATA CRC FAIL: sta: %08x\n",
__func__, sta);
clear |= FTSDC010_STATUS_DATA_CRC_FAIL;
writel(clear, &host->reg->clr);
return 0;
} else if (sta & FTSDC010_STATUS_DATA_END) {
/* Transfer Complete */
clear |= FTSDC010_STATUS_DATA_END;
}
}
/* transaction is success and clear status register */
writel(clear, &host->reg->clr);
return 0;
}
static int ftsdc010_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
struct mmc_data *data)
{
struct mmc_host *host = mmc->priv;
#ifdef CONFIG_FTSDC010_SDIO
unsigned int scon;
#endif
unsigned int ccon;
unsigned int mask, tmpmask;
unsigned int ret;
if (data)
mask = FTSDC010_INT_MASK_RSP_TIMEOUT;
else if (cmd->resp_type & MMC_RSP_PRESENT)
mask = FTSDC010_INT_MASK_RSP_TIMEOUT;
else
mask = FTSDC010_INT_MASK_CMD_SEND;
/* write argu reg */
debug("%s: cmd->arg: %08x\n", __func__, cmd->cmdarg);
writel(cmd->cmdarg, &host->reg->argu);
/* setup cmd reg */
debug("cmd: %d\n", cmd->cmdidx);
debug("resp: %08x\n", cmd->resp_type);
/* setup commnad */
ccon = FTSDC010_CMD_IDX(cmd->cmdidx);
/* setup command flags */
ccon |= FTSDC010_CMD_CMD_EN;
/*
* This hardware didn't support specific commands for mapping
* MMC_RSP_BUSY and MMC_RSP_OPCODE. Hence we don't deal with it.
*/
if (cmd->resp_type & MMC_RSP_PRESENT) {
ccon |= FTSDC010_CMD_NEED_RSP;
mask |= FTSDC010_INT_MASK_RSP_CRC_OK |
FTSDC010_INT_MASK_RSP_CRC_FAIL;
}
if (cmd->resp_type & MMC_RSP_136)
ccon |= FTSDC010_CMD_LONG_RSP;
/* In Linux driver, MMC_CMD_APP_CMD is checked in last_opcode */
if (host->last_opcode == MMC_CMD_APP_CMD)
ccon |= FTSDC010_CMD_APP_CMD;
#ifdef CONFIG_FTSDC010_SDIO
scon = readl(&host->reg->sdio_ctrl1);
if (host->card_type == MMC_TYPE_SDIO)
scon |= FTSDC010_SDIO_CTRL1_SDIO_ENABLE;
else
scon &= ~FTSDC010_SDIO_CTRL1_SDIO_ENABLE;
writel(scon, &host->reg->sdio_ctrl1);
#endif
/* record last opcode for specifing the command type to hardware */
host->last_opcode = cmd->cmdidx;
/* write int_mask reg */
tmpmask = readl(&host->reg->int_mask);
tmpmask |= mask;
writel(tmpmask, &host->reg->int_mask);
/* write cmd reg */
debug("%s: ccon: %08x\n", __func__, ccon);
writel(ccon, &host->reg->cmd);
udelay(4*FTSDC010_DELAY_UNIT);
/* read/write data */
if (data && (data->flags & MMC_DATA_READ)) {
ftsdc010_pio_read(host, data->dest,
data->blocksize * data->blocks);
} else if (data && (data->flags & MMC_DATA_WRITE)) {
ftsdc010_pio_write(host, data->src,
data->blocksize * data->blocks);
}
/* pio check response status */
ret = ftsdc010_pio_check_status(mmc, cmd, data);
if (!ret) {
/* if it is long response */
if (ccon & FTSDC010_CMD_LONG_RSP) {
cmd->response[0] = readl(&host->reg->rsp3);
cmd->response[1] = readl(&host->reg->rsp2);
cmd->response[2] = readl(&host->reg->rsp1);
cmd->response[3] = readl(&host->reg->rsp0);
} else {
cmd->response[0] = readl(&host->reg->rsp0);
}
}
udelay(FTSDC010_DELAY_UNIT);
return ret;
}
static unsigned int cal_blksz(unsigned int blksz)
{
unsigned int blksztwo = 0;
while (blksz >>= 1)
blksztwo++;
return blksztwo;
}
static int ftsdc010_setup_data(struct mmc *mmc, struct mmc_data *data)
{
struct mmc_host *host = mmc->priv;
unsigned int dcon, newmask;
/* configure data transfer paramter */
if (!data)
return 0;
if (((data->blocksize - 1) & data->blocksize) != 0) {
printf("%s: can't do non-power-of 2 sized block transfers"
" (blksz %d)\n", __func__, data->blocksize);
return -1;
}
/*
* We cannot deal with unaligned blocks with more than
* one block being transfered.
*/
if ((data->blocksize <= 2) && (data->blocks > 1)) {
printf("%s: can't do non-word sized block transfers"
" (blksz %d)\n", __func__, data->blocksize);
return -1;
}
/* data length */
dcon = data->blocksize * data->blocks;
writel(dcon, &host->reg->dlr);
/* write data control */
dcon = cal_blksz(data->blocksize);
/* add to IMASK register */
newmask = (FTSDC010_STATUS_RSP_CRC_FAIL | FTSDC010_STATUS_DATA_TIMEOUT);
/*
* enable UNDERRUN will trigger interrupt immediatedly
* So setup it when rsp is received successfully
*/
if (data->flags & MMC_DATA_WRITE) {
dcon |= FTSDC010_DCR_DATA_WRITE;
} else {
dcon &= ~FTSDC010_DCR_DATA_WRITE;
newmask |= FTSDC010_STATUS_FIFO_ORUN;
}
enable_imask(host->reg, newmask);
#ifdef CONFIG_FTSDC010_SDIO
/* always reset fifo since last transfer may fail */
dcon |= FTSDC010_DCR_FIFO_RST;
/* handle sdio */
dcon = data->blocksize | data->blocks << 15;
if (data->blocks > 1)
dcon |= FTSDC010_SDIO_CTRL1_SDIO_BLK_MODE;
#endif
/* enable data transfer which will be pended until cmd is send */
dcon |= FTSDC010_DCR_DATA_EN;
writel(dcon, &host->reg->dcr);
return 0;
}
static int ftsdc010_send_request(struct mmc *mmc, struct mmc_cmd *cmd,
struct mmc_data *data)
{
int ret;
if (data) {
ret = ftsdc010_setup_data(mmc, data);
if (ret) {
printf("%s: setup data error\n", __func__);
return -1;
}
if ((data->flags & MMC_DATA_BOTH_DIR) == MMC_DATA_BOTH_DIR) {
printf("%s: data is both direction\n", __func__);
return -1;
}
}
/* Send command */
ret = ftsdc010_send_cmd(mmc, cmd, data);
return ret;
}
static int ftsdc010_card_detect(struct mmc *mmc)
{
struct mmc_host *host = mmc->priv;
unsigned int sta;
sta = readl(&host->reg->status);
debug("%s: card status: %08x\n", __func__, sta);
return (sta & FTSDC010_STATUS_CARD_DETECT) ? 0 : 1;
}
static int ftsdc010_request(struct mmc *mmc, struct mmc_cmd *cmd,
struct mmc_data *data)
{
int ret;
if (ftsdc010_card_detect(mmc) == 0) {
printf("%s: no medium present\n", __func__);
return -1;
} else {
ret = ftsdc010_send_request(mmc, cmd, data);
return ret;
}
}
static void ftsdc010_set_clk(struct mmc *mmc)
{
struct mmc_host *host = mmc->priv;
unsigned char clk_div;
unsigned char real_rate;
unsigned int clock;
debug("%s: mmc_set_clock: %x\n", __func__, mmc->clock);
clock = readl(&host->reg->ccr);
if (mmc->clock == 0) {
real_rate = 0;
clock |= FTSDC010_CCR_CLK_DIS;
} else {
debug("%s, mmc->clock: %08x, origin clock: %08x\n",
__func__, mmc->clock, clock);
for (clk_div = 0; clk_div <= 127; clk_div++) {
real_rate = (CONFIG_SYS_CLK_FREQ / 2) /
(2 * (clk_div + 1));
if (real_rate <= mmc->clock)
break;
}
debug("%s: computed real_rete: %x, clk_div: %x\n",
__func__, real_rate, clk_div);
if (clk_div > 127)
debug("%s: no match clock rate, %x\n",
__func__, mmc->clock);
clock = (clock & ~FTSDC010_CCR_CLK_DIV(0x7f)) |
FTSDC010_CCR_CLK_DIV(clk_div);
clock &= ~FTSDC010_CCR_CLK_DIS;
}
debug("%s, set clock: %08x\n", __func__, clock);
writel(clock, &host->reg->ccr);
}
static void ftsdc010_set_ios(struct mmc *mmc)
{
struct mmc_host *host = mmc->priv;
unsigned int power;
unsigned long val;
unsigned int bus_width;
debug("%s: bus_width: %x, clock: %d\n",
__func__, mmc->bus_width, mmc->clock);
/* set pcr: power on */
power = readl(&host->reg->pcr);
power |= FTSDC010_PCR_POWER_ON;
writel(power, &host->reg->pcr);
if (mmc->clock)
ftsdc010_set_clk(mmc);
/* set bwr: bus width reg */
bus_width = readl(&host->reg->bwr);
bus_width &= ~(FTSDC010_BWR_WIDE_8_BUS | FTSDC010_BWR_WIDE_4_BUS |
FTSDC010_BWR_SINGLE_BUS);
if (mmc->bus_width == 8)
bus_width |= FTSDC010_BWR_WIDE_8_BUS;
else if (mmc->bus_width == 4)
bus_width |= FTSDC010_BWR_WIDE_4_BUS;
else
bus_width |= FTSDC010_BWR_SINGLE_BUS;
writel(bus_width, &host->reg->bwr);
/* set fifo depth */
val = readl(&host->reg->feature);
host->fifo_len = FTSDC010_FEATURE_FIFO_DEPTH(val) * 4; /* 4 bytes */
/* set data timeout register */
val = -1;
writel(val, &host->reg->dtr);
}
static void ftsdc010_reset(struct mmc_host *host)
{
unsigned int timeout;
/* Do SDC_RST: Software reset for all register */
writel(FTSDC010_CMD_SDC_RST, &host->reg->cmd);
host->clock = 0;
/* this hardware has no reset finish flag to read */
/* wait 100ms maximum */
timeout = 100;
/* hw clears the bit when it's done */
while (readl(&host->reg->dtr) != 0) {
if (timeout == 0) {
printf("%s: reset timeout error\n", __func__);
return;
}
timeout--;
udelay(10*FTSDC010_DELAY_UNIT);
}
}
static int ftsdc010_core_init(struct mmc *mmc)
{
struct mmc_host *host = mmc->priv;
unsigned int mask;
unsigned int major, minor, revision;
/* get hardware version */
host->version = readl(&host->reg->rev);
major = FTSDC010_REV_MAJOR(host->version);
minor = FTSDC010_REV_MINOR(host->version);
revision = FTSDC010_REV_REVISION(host->version);
printf("ftsdc010 hardware ver: %d_%d_r%d\n", major, minor, revision);
/* Interrupt MASK register init - mask all */
writel(0x0, &host->reg->int_mask);
mask = FTSDC010_INT_MASK_CMD_SEND |
FTSDC010_INT_MASK_DATA_END |
FTSDC010_INT_MASK_CARD_CHANGE;
#ifdef CONFIG_FTSDC010_SDIO
mask |= FTSDC010_INT_MASK_CP_READY |
FTSDC010_INT_MASK_CP_BUF_READY |
FTSDC010_INT_MASK_PLAIN_TEXT_READY |
FTSDC010_INT_MASK_SDIO_IRPT;
#endif
writel(mask, &host->reg->int_mask);
return 0;
}
int ftsdc010_mmc_init(int dev_index)
{
struct mmc *mmc;
struct mmc_host *host;
mmc = &ftsdc010_dev[dev_index];
sprintf(mmc->name, "FTSDC010 SD/MMC");
mmc->priv = &ftsdc010_host[dev_index];
mmc->send_cmd = ftsdc010_request;
mmc->set_ios = ftsdc010_set_ios;
mmc->init = ftsdc010_core_init;
mmc->voltages = MMC_VDD_32_33 | MMC_VDD_33_34;
mmc->host_caps = MMC_MODE_4BIT | MMC_MODE_8BIT;
mmc->host_caps |= MMC_MODE_HS_52MHz | MMC_MODE_HS;
mmc->f_min = CONFIG_SYS_CLK_FREQ / 2 / (2*128);
mmc->f_max = CONFIG_SYS_CLK_FREQ / 2 / 2;
ftsdc010_host[dev_index].clock = 0;
ftsdc010_host[dev_index].reg = ftsdc010_get_base_mmc(dev_index);
mmc_register(mmc);
/* reset mmc */
host = (struct mmc_host *)mmc->priv;
ftsdc010_reset(host);
return 0;
}

245
include/faraday/ftsdc010.h Normal file
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/*
* Faraday FTSDC010 Secure Digital Memory Card Host Controller
*
* Copyright (C) 2011 Andes Technology Corporation
* Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com>
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __FTSDC010_H
#define __FTSDC010_H
#ifndef __ASSEMBLY__
/* sd controller register */
struct ftsdc010_mmc {
unsigned int cmd; /* 0x00 - command reg */
unsigned int argu; /* 0x04 - argument reg */
unsigned int rsp0; /* 0x08 - response reg0 */
unsigned int rsp1; /* 0x0c - response reg1 */
unsigned int rsp2; /* 0x10 - response reg2 */
unsigned int rsp3; /* 0x14 - response reg3 */
unsigned int rsp_cmd; /* 0x18 - responded cmd reg */
unsigned int dcr; /* 0x1c - data control reg */
unsigned int dtr; /* 0x20 - data timer reg */
unsigned int dlr; /* 0x24 - data length reg */
unsigned int status; /* 0x28 - status reg */
unsigned int clr; /* 0x2c - clear reg */
unsigned int int_mask; /* 0x30 - intrrupt mask reg */
unsigned int pcr; /* 0x34 - power control reg */
unsigned int ccr; /* 0x38 - clock contorl reg */
unsigned int bwr; /* 0x3c - bus width reg */
unsigned int dwr; /* 0x40 - data window reg */
#ifndef CONFIG_FTSDC010_SDIO
unsigned int feature; /* 0x44 - feature reg */
unsigned int rev; /* 0x48 - revision reg */
#else
unsigned int mmc_intr_time; /* 0x44 - MMC int resp time reg */
unsigned int gpo; /* 0x48 - gerenal purpose output */
unsigned int reserved[8]; /* 0x50 - 0x68 reserved */
unsigned int sdio_ctrl1; /* 0x6c - SDIO control reg 1 */
unsigned int sdio_ctrl2; /* 0x70 - SDIO control reg 2 */
unsigned int sdio_status; /* 0x74 - SDIO status regi */
unsigned int reserved1[9]; /* 0x78 - 0x98 reserved */
unsigned int feature; /* 0x9c - feature reg */
unsigned int rev; /* 0xa0 - revision reg */
#endif /* CONFIG_FTSDC010_SDIO */
};
struct mmc_host {
struct ftsdc010_mmc *reg;
unsigned int version; /* SDHCI spec. version */
unsigned int clock; /* Current clock (MHz) */
unsigned int fifo_len; /* bytes */
unsigned int last_opcode; /* Last OP Code */
unsigned int card_type; /* Card type */
};
/* functions */
int ftsdc010_mmc_init(int dev_index);
#endif /* __ASSEMBLY__ */
/* global defines */
#define FTSDC010_CMD_RETRY 0x100000
#define FTSDC010_PIO_RETRY 100 /* pio retry times */
#define FTSDC010_DELAY_UNIT 100 /* 100 us */
/* define from Linux kernel - include/linux/mmc/card.h */
#define MMC_TYPE_SDIO 2 /* SDIO card */
/* define for mmc layer */
#define MMC_DATA_BOTH_DIR (MMC_DATA_WRITE | MMC_DATA_READ)
/* this part is strange */
#define FTSDC010_SDIO_CTRL1_REG 0x0000006C
#define FTSDC010_SDIO_CTRL2_REG 0x0000006C
#define FTSDC010_SDIO_STATUS_REG 0x00000070
/* 0x00 - command register */
#define FTSDC010_CMD_IDX(x) (((x) & 0x3f) << 0)
#define FTSDC010_CMD_NEED_RSP (1 << 6)
#define FTSDC010_CMD_LONG_RSP (1 << 7)
#define FTSDC010_CMD_APP_CMD (1 << 8)
#define FTSDC010_CMD_CMD_EN (1 << 9)
#define FTSDC010_CMD_SDC_RST (1 << 10)
#define FTSDC010_CMD_MMC_INT_STOP (1 << 11)
/* 0x18 - responded command register */
#define FTSDC010_RSP_CMD_IDX(x) (((x) >> 0) & 0x3f)
#define FTSDC010_RSP_CMD_APP (1 << 6)
/* 0x1c - data control register */
#define FTSDC010_DCR_BLK_SIZE(x) (((x) & 0xf) << 0)
#define FTSDC010_DCR_DATA_WRITE (1 << 4)
#define FTSDC010_DCR_DMA_EN (1 << 5)
#define FTSDC010_DCR_DATA_EN (1 << 6)
#ifdef CONFIG_FTSDC010_SDIO
#define FTSDC010_DCR_FIFOTH (1 << 7)
#define FTSDC010_DCR_DMA_TYPE(x) (((x) & 0x3) << 8)
#define FTSDC010_DCR_FIFO_RST (1 << 10)
#endif /* CONFIG_FTSDC010_SDIO */
#define FTSDC010_DCR_DMA_TYPE_1 0x0 /* Single r/w */
#define FTSDC010_DCR_DMA_TYPE_4 0x1 /* Burst 4 r/w */
#define FTSDC010_DCR_DMA_TYPE_8 0x2 /* Burst 8 r/w */
#define FTSDC010_DCR_BLK_BYTES(x) (ffs(x) - 1) /* 1B - 2048B */
/* CPRM related define */
#define FTSDC010_CPRM_DATA_CHANGE_ENDIAN_EN 0x000008
#define FTSDC010_CPRM_DATA_SWAP_HL_EN 0x000010
/* 0x28 - status register */
#define FTSDC010_STATUS_RSP_CRC_FAIL (1 << 0)
#define FTSDC010_STATUS_DATA_CRC_FAIL (1 << 1)
#define FTSDC010_STATUS_RSP_TIMEOUT (1 << 2)
#define FTSDC010_STATUS_DATA_TIMEOUT (1 << 3)
#define FTSDC010_STATUS_RSP_CRC_OK (1 << 4)
#define FTSDC010_STATUS_DATA_CRC_OK (1 << 5)
#define FTSDC010_STATUS_CMD_SEND (1 << 6)
#define FTSDC010_STATUS_DATA_END (1 << 7)
#define FTSDC010_STATUS_FIFO_URUN (1 << 8)
#define FTSDC010_STATUS_FIFO_ORUN (1 << 9)
#define FTSDC010_STATUS_CARD_CHANGE (1 << 10)
#define FTSDC010_STATUS_CARD_DETECT (1 << 11)
#define FTSDC010_STATUS_WRITE_PROT (1 << 12)
#ifdef CONFIG_FTSDC010_SDIO
#define FTSDC010_STATUS_CP_READY (1 << 13) /* reserved ? */
#define FTSDC010_STATUS_CP_BUF_READY (1 << 14) /* reserved ? */
#define FTSDC010_STATUS_PLAIN_TEXT_READY (1 << 15) /* reserved ? */
#define FTSDC010_STATUS_SDIO_IRPT (1 << 16) /* SDIO card intr */
#define FTSDC010_STATUS_DATA0_STATUS (1 << 17)
#endif /* CONFIG_FTSDC010_SDIO */
/* 0x2c - clear register */
#define FTSDC010_CLR_RSP_CRC_FAIL (1 << 0)
#define FTSDC010_CLR_DATA_CRC_FAIL (1 << 1)
#define FTSDC010_CLR_RSP_TIMEOUT (1 << 2)
#define FTSDC010_CLR_DATA_TIMEOUT (1 << 3)
#define FTSDC010_CLR_RSP_CRC_OK (1 << 4)
#define FTSDC010_CLR_DATA_CRC_OK (1 << 5)
#define FTSDC010_CLR_CMD_SEND (1 << 6)
#define FTSDC010_CLR_DATA_END (1 << 7)
#define FTSDC010_STATUS_FIFO_URUN (1 << 8) /* reserved ? */
#define FTSDC010_STATUS_FIFO_ORUN (1 << 9) /* reserved ? */
#define FTSDC010_CLR_CARD_CHANGE (1 << 10)
#ifdef CONFIG_FTSDC010_SDIO
#define FTSDC010_CLR_SDIO_IRPT (1 << 16)
#endif /* CONFIG_FTSDC010_SDIO */
/* 0x30 - interrupt mask register */
#define FTSDC010_INT_MASK_RSP_CRC_FAIL (1 << 0)
#define FTSDC010_INT_MASK_DATA_CRC_FAIL (1 << 1)
#define FTSDC010_INT_MASK_RSP_TIMEOUT (1 << 2)
#define FTSDC010_INT_MASK_DATA_TIMEOUT (1 << 3)
#define FTSDC010_INT_MASK_RSP_CRC_OK (1 << 4)
#define FTSDC010_INT_MASK_DATA_CRC_OK (1 << 5)
#define FTSDC010_INT_MASK_CMD_SEND (1 << 6)
#define FTSDC010_INT_MASK_DATA_END (1 << 7)
#define FTSDC010_INT_MASK_FIFO_URUN (1 << 8)
#define FTSDC010_INT_MASK_FIFO_ORUN (1 << 9)
#define FTSDC010_INT_MASK_CARD_CHANGE (1 << 10)
#ifdef CONFIG_FTSDC010_SDIO
#define FTSDC010_INT_MASK_CP_READY (1 << 13)
#define FTSDC010_INT_MASK_CP_BUF_READY (1 << 14)
#define FTSDC010_INT_MASK_PLAIN_TEXT_READY (1 << 15)
#define FTSDC010_INT_MASK_SDIO_IRPT (1 << 16)
#define FTSDC010_STATUS_DATA0_STATUS (1 << 17)
#endif /* CONFIG_FTSDC010_SDIO */
/* ? */
#define FTSDC010_CARD_INSERT 0x0
#define FTSDC010_CARD_REMOVE FTSDC010_STATUS_REG_CARD_DETECT
/* 0x34 - power control register */
#define FTSDC010_PCR_POWER(x) (((x) & 0xf) << 0)
#define FTSDC010_PCR_POWER_ON (1 << 4)
/* 0x38 - clock control register */
#define FTSDC010_CCR_CLK_DIV(x) (((x) & 0x7f) << 0)
#define FTSDC010_CCR_CLK_SD (1 << 7) /* 0: MMC, 1: SD */
#define FTSDC010_CCR_CLK_DIS (1 << 8)
/* card type */
#define FTSDC010_CARD_TYPE_SD FTSDC010_CLOCK_REG_CARD_TYPE
#define FTSDC010_CARD_TYPE_MMC 0x0
/* 0x3c - bus width register */
#define FTSDC010_BWR_SINGLE_BUS (1 << 0)
#define FTSDC010_BWR_WIDE_8_BUS (1 << 1)
#define FTSDC010_BWR_WIDE_4_BUS (1 << 2)
#define FTSDC010_BWR_WIDE_BUS_SUPPORT(x) (((x) >> 3) & 0x3)
#define FTSDC010_BWR_CARD_DETECT (1 << 5)
#define FTSDC010_BWR_1_BUS_SUPPORT 0x0
#define FTSDC010_BWR_4_BUS_SUPPORT 0x1
#define FTSDC010_BWR_8_BUS_SUPPORT 0x2
/* 0x44 or 0x9c - feature register */
#define FTSDC010_FEATURE_FIFO_DEPTH(x) (((x) >> 0) & 0xff)
#define FTSDC010_FEATURE_CPRM_FUNCTION (1 << 8)
#define FTSDC010_FIFO_DEPTH_4 0x04
#define FTSDC010_FIFO_DEPTH_8 0x08
#define FTSDC010_FIFO_DEPTH_16 0x10
/* 0x48 or 0xa0 - revision register */
#define FTSDC010_REV_REVISION(x) (((x) & 0xff) >> 0)
#define FTSDC010_REV_MINOR(x) (((x) & 0xff00) >> 8)
#define FTSDC010_REV_MAJOR(x) (((x) & 0xffff0000) >> 16)
#ifdef CONFIG_FTSDC010_SDIO
/* 0x44 - general purpose output */
#define FTSDC010_GPO_PORT(x) (((x) & 0xf) << 0)
/* 0x6c - sdio control register 1 */
#define FTSDC010_SDIO_CTRL1_SDIO_BLK_SIZE(x) (((x) & 0xfff) << 0)
#define FTSDC010_SDIO_CTRL1_SDIO_BLK_MODE (1 << 12)
#define FTSDC010_SDIO_CTRL1_READ_WAIT_EN (1 << 13)
#define FTSDC010_SDIO_CTRL1_SDIO_ENABLE (1 << 14)
#define FTSDC010_SDIO_CTRL1_SDIO_BLK_NO(x) (((x) & 0x1ff) << 15)
/* 0x70 - sdio control register 2 */
#define FTSDC010_SDIO_CTRL2_SUSP_READ_WAIT (1 << 0)
#define FTSDC010_SDIO_CTRL2_SUSP_CMD_ABORT (1 << 1)
/* 0x74 - sdio status register */
#define FTSDC010_SDIO_STATUS_SDIO_BLK_CNT(x) (((x) >> 0) & 0x1ffff)
#define FTSDC010_SDIO_STATUS_FIFO_REMAIN_NO(x) (((x) >> 17) & 0xef)
#endif /* CONFIG_FTSDC010_SDIO */
#endif /* __FTSDC010_H */