From: Matt Waddel matt.waddel@linaro.org
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 --- drivers/mmc/Makefile | 1 + drivers/mmc/mmci.c | 452 ++++++++++++++++++++++++++++++++++++++++++++++++++ drivers/mmc/mmci.h | 181 ++++++++++++++++++++ 3 files changed, 634 insertions(+), 0 deletions(-) create mode 100644 drivers/mmc/mmci.c create mode 100644 drivers/mmc/mmci.h
diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile index 3496f0a..999970b 100644 --- a/drivers/mmc/Makefile +++ b/drivers/mmc/Makefile @@ -31,6 +31,7 @@ COBJS-$(CONFIG_DAVINCI_MMC) += davinci_mmc.o COBJS-$(CONFIG_FSL_ESDHC) += fsl_esdhc.o COBJS-$(CONFIG_GENERIC_MMC) += mmc.o COBJS-$(CONFIG_GENERIC_ATMEL_MCI) += gen_atmel_mci.o +COBJS-$(CONFIG_MMCI) += mmci.o COBJS-$(CONFIG_MXC_MMC) += mxcmmc.o COBJS-$(CONFIG_OMAP3_MMC) += omap3_mmc.o COBJS-$(CONFIG_OMAP_HSMMC) += omap_hsmmc.o diff --git a/drivers/mmc/mmci.c b/drivers/mmc/mmci.c new file mode 100644 index 0000000..ba2f335 --- /dev/null +++ b/drivers/mmc/mmci.c @@ -0,0 +1,452 @@ +/* + * 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 "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 convert_from_bytes_to_power_of_two(unsigned int x) +{ + int y = 0; + y = (x & 0xAAAA) ? 1 : 0; + y |= ((x & 0xCCCC) ? 1 : 0) << 1; + y |= ((x & 0xF0F0) ? 1 : 0) << 2; + y |= ((x & 0xFF00) ? 1 : 0) << 3; + + return y; +} + +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 = convert_from_bytes_to_power_of_two(data->blocksize); + 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 = ((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 mmc_host_init(struct mmc *dev) +{ + struct mmc_host *host = dev->priv; + u32 sdi_u32; + + host->base = (struct sdi_registers *)CONFIG_MMC_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 = 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_MMCI_CLOCK_FREQ; + + return 0; +} + +int mmci_init(void) +{ + int error; + struct mmc *dev; + + dev = alloc_mmc_struct(); + if (!dev) + return -1; + + error = mmc_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/mmci.h b/drivers/mmc/mmci.h new file mode 100644 index 0000000..ad82e61 --- /dev/null +++ b/drivers/mmc/mmci.h @@ -0,0 +1,181 @@ +/* + * 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 __MMC_NOMADIK_H__ +#define __MMC_NOMADIK_H__ + +#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 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