MMC: Add support for PL180 ARM mmc device
Add support for the ARM PrimeCell MultiMedia Interface - PL180.
Ported from original device driver written by ST-Ericsson.
Signed-off-by: Matt Waddel <matt.waddel@linaro.org>
diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile
index 9aca3a2..a8fe17a 100644
--- a/drivers/mmc/Makefile
+++ b/drivers/mmc/Makefile
@@ -32,6 +32,7 @@
COBJS-$(CONFIG_GENERIC_MMC) += mmc.o
COBJS-$(CONFIG_GENERIC_ATMEL_MCI) += gen_atmel_mci.o
COBJS-$(CONFIG_MMC_SPI) += mmc_spi.o
+COBJS-$(CONFIG_ARM_PL180_MMCI) += arm_pl180_mmci.o
COBJS-$(CONFIG_MXC_MMC) += mxcmmc.o
COBJS-$(CONFIG_OMAP3_MMC) += omap3_mmc.o
COBJS-$(CONFIG_OMAP_HSMMC) += omap_hsmmc.o
diff --git a/drivers/mmc/arm_pl180_mmci.c b/drivers/mmc/arm_pl180_mmci.c
new file mode 100644
index 0000000..245f482
--- /dev/null
+++ b/drivers/mmc/arm_pl180_mmci.c
@@ -0,0 +1,441 @@
+/*
+ * ARM PrimeCell MultiMedia Card Interface - PL180
+ *
+ * Copyright (C) ST-Ericsson SA 2010
+ *
+ * Author: Ulf Hansson <ulf.hansson@stericsson.com>
+ * Author: Martin Lundholm <martin.xa.lundholm@stericsson.com>
+ * Ported to drivers/mmc/ by: Matt Waddel <matt.waddel@linaro.org>
+ *
+ * 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
+ */
+
+/* #define DEBUG */
+
+#include <asm/io.h>
+#include "common.h"
+#include <errno.h>
+#include <mmc.h>
+#include "arm_pl180_mmci.h"
+#include <malloc.h>
+
+struct mmc_host {
+ struct sdi_registers *base;
+};
+
+static int wait_for_command_end(struct mmc *dev, struct mmc_cmd *cmd)
+{
+ u32 hoststatus, statusmask;
+ struct mmc_host *host = dev->priv;
+
+ statusmask = SDI_STA_CTIMEOUT | SDI_STA_CCRCFAIL;
+ if ((cmd->resp_type & MMC_RSP_PRESENT))
+ statusmask |= SDI_STA_CMDREND;
+ else
+ statusmask |= SDI_STA_CMDSENT;
+
+ do
+ hoststatus = readl(&host->base->status) & statusmask;
+ while (!hoststatus);
+
+ writel(statusmask, &host->base->status_clear);
+ if (hoststatus & SDI_STA_CTIMEOUT) {
+ printf("CMD%d time out\n", cmd->cmdidx);
+ return -ETIMEDOUT;
+ } else if ((hoststatus & SDI_STA_CCRCFAIL) &&
+ (cmd->flags & MMC_RSP_CRC)) {
+ printf("CMD%d CRC error\n", cmd->cmdidx);
+ return -EILSEQ;
+ }
+
+ if (cmd->resp_type & MMC_RSP_PRESENT) {
+ cmd->response[0] = readl(&host->base->response0);
+ cmd->response[1] = readl(&host->base->response1);
+ cmd->response[2] = readl(&host->base->response2);
+ cmd->response[3] = readl(&host->base->response3);
+ debug("CMD%d response[0]:0x%08X, response[1]:0x%08X, "
+ "response[2]:0x%08X, response[3]:0x%08X\n",
+ cmd->cmdidx, cmd->response[0], cmd->response[1],
+ cmd->response[2], cmd->response[3]);
+ }
+
+ return 0;
+}
+
+/* send command to the mmc card and wait for results */
+static int do_command(struct mmc *dev, struct mmc_cmd *cmd)
+{
+ int result;
+ u32 sdi_cmd = 0;
+ struct mmc_host *host = dev->priv;
+
+ sdi_cmd = ((cmd->cmdidx & SDI_CMD_CMDINDEX_MASK) | SDI_CMD_CPSMEN);
+
+ if (cmd->resp_type) {
+ sdi_cmd |= SDI_CMD_WAITRESP;
+ if (cmd->resp_type & MMC_RSP_136)
+ sdi_cmd |= SDI_CMD_LONGRESP;
+ }
+
+ writel((u32)cmd->cmdarg, &host->base->argument);
+ udelay(COMMAND_REG_DELAY);
+ writel(sdi_cmd, &host->base->command);
+ result = wait_for_command_end(dev, cmd);
+
+ /* After CMD2 set RCA to a none zero value. */
+ if ((result == 0) && (cmd->cmdidx == MMC_CMD_ALL_SEND_CID))
+ dev->rca = 10;
+
+ /* After CMD3 open drain is switched off and push pull is used. */
+ if ((result == 0) && (cmd->cmdidx == MMC_CMD_SET_RELATIVE_ADDR)) {
+ u32 sdi_pwr = readl(&host->base->power) & ~SDI_PWR_OPD;
+ writel(sdi_pwr, &host->base->power);
+ }
+
+ return result;
+}
+
+static int read_bytes(struct mmc *dev, u32 *dest, u32 blkcount, u32 blksize)
+{
+ u32 *tempbuff = dest;
+ int i;
+ u64 xfercount = blkcount * blksize;
+ struct mmc_host *host = dev->priv;
+ u32 status, status_err;
+
+ debug("read_bytes: blkcount=%u blksize=%u\n", blkcount, blksize);
+
+ status = readl(&host->base->status);
+ status_err = status & (SDI_STA_DCRCFAIL | SDI_STA_DTIMEOUT |
+ SDI_STA_RXOVERR);
+ while (!status_err &&
+ (xfercount >= SDI_FIFO_BURST_SIZE * sizeof(u32))) {
+ if (status & SDI_STA_RXFIFOBR) {
+ for (i = 0; i < SDI_FIFO_BURST_SIZE; i++)
+ *(tempbuff + i) = readl(&host->base->fifo);
+ tempbuff += SDI_FIFO_BURST_SIZE;
+ xfercount -= SDI_FIFO_BURST_SIZE * sizeof(u32);
+ }
+ status = readl(&host->base->status);
+ status_err = status &
+ (SDI_STA_DCRCFAIL | SDI_STA_DTIMEOUT | SDI_STA_RXOVERR);
+ }
+
+ if (status & SDI_STA_DTIMEOUT) {
+ printf("Read data timed out, xfercount: %llu, status: 0x%08X\n",
+ xfercount, status);
+ return -ETIMEDOUT;
+ } else if (status & SDI_STA_DCRCFAIL) {
+ printf("Read data blk CRC error: 0x%x\n", status);
+ return -EILSEQ;
+ } else if (status & SDI_STA_RXOVERR) {
+ printf("Read data RX overflow error\n");
+ return -EIO;
+ }
+
+ while ((!status_err) && (xfercount >= sizeof(u32))) {
+ if (status & SDI_STA_RXDAVL) {
+ *(tempbuff) = readl(&host->base->fifo);
+ tempbuff++;
+ xfercount -= sizeof(u32);
+ }
+ status = readl(&host->base->status);
+ status_err = status & (SDI_STA_DCRCFAIL | SDI_STA_DTIMEOUT |
+ SDI_STA_RXOVERR);
+ }
+
+ status_err = status &
+ (SDI_STA_DCRCFAIL | SDI_STA_DTIMEOUT | SDI_STA_DBCKEND |
+ SDI_STA_RXOVERR);
+ while (!status_err) {
+ status = readl(&host->base->status);
+ status_err = status &
+ (SDI_STA_DCRCFAIL | SDI_STA_DTIMEOUT | SDI_STA_DBCKEND |
+ SDI_STA_RXOVERR);
+ }
+
+ if (status & SDI_STA_DTIMEOUT) {
+ printf("Read data timed out, xfercount: %llu, status: 0x%08X\n",
+ xfercount, status);
+ return -ETIMEDOUT;
+ } else if (status & SDI_STA_DCRCFAIL) {
+ printf("Read data bytes CRC error: 0x%x\n", status);
+ return -EILSEQ;
+ } else if (status & SDI_STA_RXOVERR) {
+ printf("Read data RX overflow error\n");
+ return -EIO;
+ }
+
+ writel(SDI_ICR_MASK, &host->base->status_clear);
+
+ if (xfercount) {
+ printf("Read data error, xfercount: %llu\n", xfercount);
+ return -ENOBUFS;
+ }
+
+ return 0;
+}
+
+static int write_bytes(struct mmc *dev, u32 *src, u32 blkcount, u32 blksize)
+{
+ u32 *tempbuff = src;
+ int i;
+ u64 xfercount = blkcount * blksize;
+ struct mmc_host *host = dev->priv;
+ u32 status, status_err;
+
+ debug("write_bytes: blkcount=%u blksize=%u\n", blkcount, blksize);
+
+ status = readl(&host->base->status);
+ status_err = status & (SDI_STA_DCRCFAIL | SDI_STA_DTIMEOUT);
+ while (!status_err && xfercount) {
+ if (status & SDI_STA_TXFIFOBW) {
+ if (xfercount >= SDI_FIFO_BURST_SIZE * sizeof(u32)) {
+ for (i = 0; i < SDI_FIFO_BURST_SIZE; i++)
+ writel(*(tempbuff + i),
+ &host->base->fifo);
+ tempbuff += SDI_FIFO_BURST_SIZE;
+ xfercount -= SDI_FIFO_BURST_SIZE * sizeof(u32);
+ } else {
+ while (xfercount >= sizeof(u32)) {
+ writel(*(tempbuff), &host->base->fifo);
+ tempbuff++;
+ xfercount -= sizeof(u32);
+ }
+ }
+ }
+ status = readl(&host->base->status);
+ status_err = status & (SDI_STA_DCRCFAIL | SDI_STA_DTIMEOUT);
+ }
+
+ status_err = status &
+ (SDI_STA_DCRCFAIL | SDI_STA_DTIMEOUT | SDI_STA_DBCKEND);
+ while (!status_err) {
+ status = readl(&host->base->status);
+ status_err = status &
+ (SDI_STA_DCRCFAIL | SDI_STA_DTIMEOUT | SDI_STA_DBCKEND);
+ }
+
+ if (status & SDI_STA_DTIMEOUT) {
+ printf("Write data timed out, xfercount:%llu,status:0x%08X\n",
+ xfercount, status);
+ return -ETIMEDOUT;
+ } else if (status & SDI_STA_DCRCFAIL) {
+ printf("Write data CRC error\n");
+ return -EILSEQ;
+ }
+
+ writel(SDI_ICR_MASK, &host->base->status_clear);
+
+ if (xfercount) {
+ printf("Write data error, xfercount:%llu", xfercount);
+ return -ENOBUFS;
+ }
+
+ return 0;
+}
+
+static int do_data_transfer(struct mmc *dev,
+ struct mmc_cmd *cmd,
+ struct mmc_data *data)
+{
+ int error = -ETIMEDOUT;
+ struct mmc_host *host = dev->priv;
+ u32 blksz = 0;
+ u32 data_ctrl = 0;
+ u32 data_len = (u32) (data->blocks * data->blocksize);
+
+ blksz = (ffs(data->blocksize) - 1);
+ data_ctrl |= ((blksz << 4) & SDI_DCTRL_DBLKSIZE_MASK);
+ data_ctrl |= SDI_DCTRL_DTEN;
+
+ writel(SDI_DTIMER_DEFAULT, &host->base->datatimer);
+ writel(data_len, &host->base->datalength);
+ udelay(DATA_REG_DELAY);
+
+ if (data->flags & MMC_DATA_READ) {
+ data_ctrl |= SDI_DCTRL_DTDIR_IN;
+ writel(data_ctrl, &host->base->datactrl);
+
+ error = do_command(dev, cmd);
+ if (error)
+ return error;
+
+ error = read_bytes(dev, (u32 *)data->dest, (u32)data->blocks,
+ (u32)data->blocksize);
+ } else if (data->flags & MMC_DATA_WRITE) {
+ error = do_command(dev, cmd);
+ if (error)
+ return error;
+
+ writel(data_ctrl, &host->base->datactrl);
+ error = write_bytes(dev, (u32 *)data->src, (u32)data->blocks,
+ (u32)data->blocksize);
+ }
+
+ return error;
+}
+
+static int host_request(struct mmc *dev,
+ struct mmc_cmd *cmd,
+ struct mmc_data *data)
+{
+ int result;
+
+ if (data)
+ result = do_data_transfer(dev, cmd, data);
+ else
+ result = do_command(dev, cmd);
+
+ return result;
+}
+
+/* MMC uses open drain drivers in the enumeration phase */
+static int mmc_host_reset(struct mmc *dev)
+{
+ struct mmc_host *host = dev->priv;
+ u32 sdi_u32 = SDI_PWR_OPD | SDI_PWR_PWRCTRL_ON;
+
+ writel(sdi_u32, &host->base->power);
+
+ return 0;
+}
+
+static void host_set_ios(struct mmc *dev)
+{
+ struct mmc_host *host = dev->priv;
+ u32 sdi_clkcr;
+
+ sdi_clkcr = readl(&host->base->clock);
+
+ /* Ramp up the clock rate */
+ if (dev->clock) {
+ u32 clkdiv = 0;
+
+ if (dev->clock >= dev->f_max)
+ dev->clock = dev->f_max;
+
+ clkdiv = ((ARM_MCLK / dev->clock) / 2) - 1;
+
+ if (clkdiv > SDI_CLKCR_CLKDIV_MASK)
+ clkdiv = SDI_CLKCR_CLKDIV_MASK;
+
+ sdi_clkcr &= ~(SDI_CLKCR_CLKDIV_MASK);
+ sdi_clkcr |= clkdiv;
+ }
+
+ /* Set the bus width */
+ if (dev->bus_width) {
+ u32 buswidth = 0;
+
+ switch (dev->bus_width) {
+ case 1:
+ buswidth |= SDI_CLKCR_WIDBUS_1;
+ break;
+ case 4:
+ buswidth |= SDI_CLKCR_WIDBUS_4;
+ break;
+ default:
+ printf("Invalid bus width\n");
+ break;
+ }
+ sdi_clkcr &= ~(SDI_CLKCR_WIDBUS_MASK);
+ sdi_clkcr |= buswidth;
+ }
+
+ writel(sdi_clkcr, &host->base->clock);
+ udelay(CLK_CHANGE_DELAY);
+}
+
+struct mmc *alloc_mmc_struct(void)
+{
+ struct mmc_host *host = NULL;
+ struct mmc *mmc_device = NULL;
+
+ host = malloc(sizeof(struct mmc_host));
+ if (!host)
+ return NULL;
+
+ mmc_device = malloc(sizeof(struct mmc));
+ if (!mmc_device)
+ goto err;
+
+ mmc_device->priv = host;
+ return mmc_device;
+
+err:
+ free(host);
+ return NULL;
+}
+
+/*
+ * mmc_host_init - initialize the mmc controller.
+ * Set initial clock and power for mmc slot.
+ * Initialize mmc struct and register with mmc framework.
+ */
+static int arm_pl180_mmci_host_init(struct mmc *dev)
+{
+ struct mmc_host *host = dev->priv;
+ u32 sdi_u32;
+
+ host->base = (struct sdi_registers *)CONFIG_ARM_PL180_MMCI_BASE;
+
+ /* Initially set power-on, full voltage & MMCI read */
+ sdi_u32 = INIT_PWR;
+ writel(sdi_u32, &host->base->power);
+
+ /* setting clk freq 505KHz */
+ sdi_u32 = SDI_CLKCR_CLKDIV_INIT | SDI_CLKCR_CLKEN;
+ writel(sdi_u32, &host->base->clock);
+ udelay(CLK_CHANGE_DELAY);
+
+ /* Disable mmc interrupts */
+ sdi_u32 = readl(&host->base->mask0) & ~SDI_MASK0_MASK;
+ writel(sdi_u32, &host->base->mask0);
+
+ sprintf(dev->name, "MMC");
+ dev->clock = ARM_MCLK / (2 * (SDI_CLKCR_CLKDIV_INIT + 1));
+ dev->send_cmd = host_request;
+ dev->set_ios = host_set_ios;
+ dev->init = mmc_host_reset;
+ dev->host_caps = 0;
+ dev->voltages = VOLTAGE_WINDOW_MMC;
+ dev->f_min = dev->clock;
+ dev->f_max = CONFIG_ARM_PL180_MMCI_CLOCK_FREQ;
+
+ return 0;
+}
+
+int arm_pl180_mmci_init(void)
+{
+ int error;
+ struct mmc *dev;
+
+ dev = alloc_mmc_struct();
+ if (!dev)
+ return -1;
+
+ error = arm_pl180_mmci_host_init(dev);
+ if (error) {
+ printf("mmci_host_init error - %d\n", error);
+ return -1;
+ }
+
+ mmc_register(dev);
+ debug("registered mmc interface number is:%d\n", dev->block_dev.dev);
+
+ return 0;
+}
diff --git a/drivers/mmc/arm_pl180_mmci.h b/drivers/mmc/arm_pl180_mmci.h
new file mode 100644
index 0000000..42fbe3e
--- /dev/null
+++ b/drivers/mmc/arm_pl180_mmci.h
@@ -0,0 +1,183 @@
+/*
+ * ARM PrimeCell MultiMedia Card Interface - PL180
+ *
+ * Copyright (C) ST-Ericsson SA 2010
+ *
+ * Author: Ulf Hansson <ulf.hansson@stericsson.com>
+ * Author: Martin Lundholm <martin.xa.lundholm@stericsson.com>
+ * Ported to drivers/mmc/ by: Matt Waddel <matt.waddel@linaro.org>
+ *
+ * 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
+ */
+
+#ifndef __ARM_PL180_MMCI_H__
+#define __ARM_PL180_MMCI_H__
+
+int arm_pl180_mmci_init(void);
+
+#define COMMAND_REG_DELAY 300
+#define DATA_REG_DELAY 1000
+#define CLK_CHANGE_DELAY 2000
+
+#define INIT_PWR 0xBF /* Power on, full power, not open drain */
+#define ARM_MCLK (100*1000*1000)
+
+/* SDI Power Control register bits */
+#define SDI_PWR_PWRCTRL_MASK 0x00000003
+#define SDI_PWR_PWRCTRL_ON 0x00000003
+#define SDI_PWR_PWRCTRL_OFF 0x00000000
+#define SDI_PWR_DAT2DIREN 0x00000004
+#define SDI_PWR_CMDDIREN 0x00000008
+#define SDI_PWR_DAT0DIREN 0x00000010
+#define SDI_PWR_DAT31DIREN 0x00000020
+#define SDI_PWR_OPD 0x00000040
+#define SDI_PWR_FBCLKEN 0x00000080
+#define SDI_PWR_DAT74DIREN 0x00000100
+#define SDI_PWR_RSTEN 0x00000200
+
+#define VOLTAGE_WINDOW_MMC 0x00FF8080
+#define VOLTAGE_WINDOW_SD 0x80010000
+
+/* SDI clock control register bits */
+#define SDI_CLKCR_CLKDIV_MASK 0x000000FF
+#define SDI_CLKCR_CLKEN 0x00000100
+#define SDI_CLKCR_PWRSAV 0x00000200
+#define SDI_CLKCR_BYPASS 0x00000400
+#define SDI_CLKCR_WIDBUS_MASK 0x00001800
+#define SDI_CLKCR_WIDBUS_1 0x00000000
+#define SDI_CLKCR_WIDBUS_4 0x00000800
+
+#define SDI_CLKCR_CLKDIV_INIT 0x000000C6 /* MCLK/(2*(0xC6+1)) => 505KHz */
+
+/* SDI command register bits */
+#define SDI_CMD_CMDINDEX_MASK 0x000000FF
+#define SDI_CMD_WAITRESP 0x00000040
+#define SDI_CMD_LONGRESP 0x00000080
+#define SDI_CMD_WAITINT 0x00000100
+#define SDI_CMD_WAITPEND 0x00000200
+#define SDI_CMD_CPSMEN 0x00000400
+#define SDI_CMD_SDIOSUSPEND 0x00000800
+#define SDI_CMD_ENDCMDCOMPL 0x00001000
+#define SDI_CMD_NIEN 0x00002000
+#define SDI_CMD_CE_ATACMD 0x00004000
+#define SDI_CMD_CBOOTMODEEN 0x00008000
+
+#define SDI_DTIMER_DEFAULT 0xFFFF0000
+
+/* SDI Status register bits */
+#define SDI_STA_CCRCFAIL 0x00000001
+#define SDI_STA_DCRCFAIL 0x00000002
+#define SDI_STA_CTIMEOUT 0x00000004
+#define SDI_STA_DTIMEOUT 0x00000008
+#define SDI_STA_TXUNDERR 0x00000010
+#define SDI_STA_RXOVERR 0x00000020
+#define SDI_STA_CMDREND 0x00000040
+#define SDI_STA_CMDSENT 0x00000080
+#define SDI_STA_DATAEND 0x00000100
+#define SDI_STA_STBITERR 0x00000200
+#define SDI_STA_DBCKEND 0x00000400
+#define SDI_STA_CMDACT 0x00000800
+#define SDI_STA_TXACT 0x00001000
+#define SDI_STA_RXACT 0x00002000
+#define SDI_STA_TXFIFOBW 0x00004000
+#define SDI_STA_RXFIFOBR 0x00008000
+#define SDI_STA_TXFIFOF 0x00010000
+#define SDI_STA_RXFIFOF 0x00020000
+#define SDI_STA_TXFIFOE 0x00040000
+#define SDI_STA_RXFIFOE 0x00080000
+#define SDI_STA_TXDAVL 0x00100000
+#define SDI_STA_RXDAVL 0x00200000
+#define SDI_STA_SDIOIT 0x00400000
+#define SDI_STA_CEATAEND 0x00800000
+#define SDI_STA_CARDBUSY 0x01000000
+#define SDI_STA_BOOTMODE 0x02000000
+#define SDI_STA_BOOTACKERR 0x04000000
+#define SDI_STA_BOOTACKTIMEOUT 0x08000000
+#define SDI_STA_RSTNEND 0x10000000
+
+/* SDI Interrupt Clear register bits */
+#define SDI_ICR_MASK 0x1DC007FF
+#define SDI_ICR_CCRCFAILC 0x00000001
+#define SDI_ICR_DCRCFAILC 0x00000002
+#define SDI_ICR_CTIMEOUTC 0x00000004
+#define SDI_ICR_DTIMEOUTC 0x00000008
+#define SDI_ICR_TXUNDERRC 0x00000010
+#define SDI_ICR_RXOVERRC 0x00000020
+#define SDI_ICR_CMDRENDC 0x00000040
+#define SDI_ICR_CMDSENTC 0x00000080
+#define SDI_ICR_DATAENDC 0x00000100
+#define SDI_ICR_STBITERRC 0x00000200
+#define SDI_ICR_DBCKENDC 0x00000400
+#define SDI_ICR_SDIOITC 0x00400000
+#define SDI_ICR_CEATAENDC 0x00800000
+#define SDI_ICR_BUSYENDC 0x01000000
+#define SDI_ICR_BOOTACKERRC 0x04000000
+#define SDI_ICR_BOOTACKTIMEOUTC 0x08000000
+#define SDI_ICR_RSTNENDC 0x10000000
+
+#define SDI_MASK0_MASK 0x1FFFFFFF
+
+/* SDI Data control register bits */
+#define SDI_DCTRL_DTEN 0x00000001
+#define SDI_DCTRL_DTDIR_IN 0x00000002
+#define SDI_DCTRL_DTMODE_STREAM 0x00000004
+#define SDI_DCTRL_DMAEN 0x00000008
+#define SDI_DCTRL_DBLKSIZE_MASK 0x000000F0
+#define SDI_DCTRL_RWSTART 0x00000100
+#define SDI_DCTRL_RWSTOP 0x00000200
+#define SDI_DCTRL_RWMOD 0x00000200
+#define SDI_DCTRL_SDIOEN 0x00000800
+#define SDI_DCTRL_DMAREQCTL 0x00001000
+#define SDI_DCTRL_DBOOTMODEEN 0x00002000
+#define SDI_DCTRL_BUSYMODE 0x00004000
+#define SDI_DCTRL_DDR_MODE 0x00008000
+
+#define SDI_FIFO_BURST_SIZE 8
+
+struct sdi_registers {
+ u32 power; /* 0x00*/
+ u32 clock; /* 0x04*/
+ u32 argument; /* 0x08*/
+ u32 command; /* 0x0c*/
+ u32 respcommand; /* 0x10*/
+ u32 response0; /* 0x14*/
+ u32 response1; /* 0x18*/
+ u32 response2; /* 0x1c*/
+ u32 response3; /* 0x20*/
+ u32 datatimer; /* 0x24*/
+ u32 datalength; /* 0x28*/
+ u32 datactrl; /* 0x2c*/
+ u32 datacount; /* 0x30*/
+ u32 status; /* 0x34*/
+ u32 status_clear; /* 0x38*/
+ u32 mask0; /* 0x3c*/
+ u32 mask1; /* 0x40*/
+ u32 card_select; /* 0x44*/
+ u32 fifo_count; /* 0x48*/
+ u32 padding1[(0x80-0x4C)>>2];
+ u32 fifo; /* 0x80*/
+ u32 padding2[(0xFE0-0x84)>>2];
+ u32 periph_id0; /* 0xFE0 mmc Peripheral Identifcation Register*/
+ u32 periph_id1; /* 0xFE4*/
+ u32 periph_id2; /* 0xFE8*/
+ u32 periph_id3; /* 0xFEC*/
+ u32 pcell_id0; /* 0xFF0*/
+ u32 pcell_id1; /* 0xFF4*/
+ u32 pcell_id2; /* 0xFF8*/
+ u32 pcell_id3; /* 0xFFC*/
+};
+
+#endif