- add kirkwood MVSDIO driver
WIP : MVSDIO v3
WIP : MVSDIO SD/MMC Driver Support for Marvell Kirkwood SoC need debugging
and code cleaning
Fix SDIO/MMC driver
- MVSDIO driver now works in non DEBUG mode
Change from v2:
- add base_clock in mrvl_mmc_initialize and mrvl_mmc_set_clk
check kirkwood device and revision to fix clock rates
- add kirkwood supported devices and revisions
- add sheevaplug board_mmc_init
- MVSDIO driver code mostly rewrote and still need some cleaning
Change from v1:
- Fix an issue with most SDHC cards because of timeout delay
Signed-off-by: drEagle <ub...@doukki.net>
drivers/mmc/Makefile |
drivers/mmc/mrvl_mmc.c |
include/mrvl_mmc.h |
diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile
index 1d6faa2..2a2745d 100644
--- a/drivers/mmc/Makefile
+++ b/drivers/mmc/Makefile
@@ -37,6 +37,7 @@ 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-$(CONFIG_MRVL_MMC) += mrvl_mmc.o
COBJS-$(CONFIG_MV_SDHCI) += mv_sdhci.o
COBJS-$(CONFIG_MXC_MMC) += mxcmmc.o
COBJS-$(CONFIG_MXS_MMC) += mxsmmc.o
diff --git a/drivers/mmc/mrvl_mmc.c b/drivers/mmc/mrvl_mmc.c
new file mode 100644
index 0000000..b0571cf
--- /dev/null
+++ b/drivers/mmc/mrvl_mmc.c
@@ -0,0 +1,446 @@
+/*
+ * Driver for Marvell SDIO/MMC controller
+ *
+ * (C) Copyright 2012
+ * Marvell Semiconductor <www.marvell.com>
+ * Written-by: Gérald Kerma <ub...@doukki.net>
+ * 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 <common.h>
+#include <malloc.h>
+#include <part.h>
+#include <mmc.h>
+#include <asm/io.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/kirkwood.h>
+
+#include <mrvl_mmc.h>
+
+#define DRIVER_NAME "mvsdio"
+
+static int maxfreq = MRVL_MMC_CLOCKRATE_MAX;
+
+#define mvsd_write(offs, val) writel(val, CONFIG_SYS_MMC_BASE + (offs))
+#define mvsd_read(offs) readl(CONFIG_SYS_MMC_BASE +
(offs))
+
+#define MRVL_MMC_MAKE_CMD(c, f) (((c & 0xff) << 8) | (f & 0xff))
+
+static int mrvl_mmc_setup_data(struct mmc_data *data)
+{
+ u32 ctrl_reg;
+
+#ifdef DEBUG
+ printf("%s, data %s : blocks=%d blksz=%d\n", DRIVER_NAME,
+ (data->flags & MMC_DATA_READ) ? "read" : "write",
+ data->blocks, data->blocksize);
+#endif
+
+ /* default to maximum timeout */
+ ctrl_reg = mvsd_read(SDIO_HOST_CTRL);
+ ctrl_reg |= SDIO_HOST_CTRL_TMOUT(SDIO_HOST_CTRL_TMOUT_MAX);
+ mvsd_write(SDIO_HOST_CTRL, ctrl_reg);
+
+ if (data->flags & MMC_DATA_READ) {
+ mvsd_write(SDIO_SYS_ADDR_LOW,(u32)data->dest & 0xffff);
+ mvsd_write(SDIO_SYS_ADDR_HI,(u32)data->dest >> 16);
+ } else {
+ mvsd_write(SDIO_SYS_ADDR_LOW,(u32)data->src & 0xffff);
+ mvsd_write(SDIO_SYS_ADDR_HI,(u32)data->src >> 16);
+ }
+
+ mvsd_write(SDIO_BLK_COUNT, data->blocks);
+ mvsd_write(SDIO_BLK_SIZE, data->blocksize);
+
+ return 0;
+}
+
+static int mrvl_mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct
mmc_data *data)
+{
+ int timeout = 10;
+ ushort waittype = 0;
+ ushort resptype = 0;
+ ushort xfertype = 0;
+ ushort resp_indx = 0;
+
+#ifdef CONFIG_MMC_DEBUG
+ printf("cmdidx [0x%x] resp_type[0x%x] cmdarg[0x%x]\n", cmd->cmdidx,
cmd->resp_type, cmd->cmdarg);
+#endif
+
+ udelay(10*1000);
+
+#ifdef CONFIG_MMC_DEBUG
+ printf("%s: cmd %d (hw state 0x%04x)\n", DRIVER_NAME,
+ cmd->cmdidx, mvsd_read(SDIO_HW_STATE));
+#endif
+
+ /* Checking if card is busy */
+ while ((mvsd_read(SDIO_HW_STATE) & CARD_BUSY)) {
+ if (timeout == 0) {
+ printf("%s: card busy!\n", DRIVER_NAME);
+ return -1;
+ }
+ timeout--;
+ udelay(1000);
+ }
+
+ /* Set up for a data transfer if we have one */
+ if (data) {
+ int err = mrvl_mmc_setup_data(data);
+ if (err)
+ return err;
+ }
+
+ resptype = SDIO_CMD_INDEX(cmd->cmdidx);
+
+ /* Analyzing resptype/xfertype/waittype for the command */
+ if (cmd->resp_type & MMC_RSP_BUSY)
+ resptype |= SDIO_CMD_RSP_48BUSY;
+ else if (cmd->resp_type & MMC_RSP_136)
+ resptype |= SDIO_CMD_RSP_136;
+ else if (cmd->resp_type & MMC_RSP_PRESENT)
+ resptype |= SDIO_CMD_RSP_48;
+ else
+ resptype |= SDIO_CMD_RSP_NONE;
+
+ if (cmd->resp_type & MMC_RSP_CRC)
+ resptype |= SDIO_CMD_CHECK_CMDCRC;
+
+ if (cmd->resp_type & MMC_RSP_OPCODE)
+ resptype |= SDIO_CMD_INDX_CHECK;
+
+ if (cmd->resp_type & MMC_RSP_PRESENT) {
+ resptype |= SDIO_UNEXPECTED_RESP;
+ waittype |= SDIO_NOR_UNEXP_RSP;
+ }
+
+ if (data) {
+ resptype |= SDIO_CMD_DATA_PRESENT | SDIO_CMD_CHECK_DATACRC16;
+ xfertype |= SDIO_XFER_MODE_HW_WR_DATA_EN;
+ if (data->flags & MMC_DATA_READ) {
+ xfertype |= SDIO_XFER_MODE_TO_HOST;
+ waittype = SDIO_NOR_DMA_INI;
+ } else
+ waittype |= SDIO_NOR_XFER_DONE;
+ } else {
+ waittype |= SDIO_NOR_CMD_DONE;
+ }
+
+ /* Setting cmd arguments */
+ mvsd_write(SDIO_ARG_LOW, cmd->cmdarg & 0xffff);
+ mvsd_write(SDIO_ARG_HI, cmd->cmdarg >> 16 );
+
+ /* Setting Xfer mode */
+ mvsd_write(SDIO_XFER_MODE, xfertype);
+
+ mvsd_write(SDIO_NOR_INTR_STATUS, ~SDIO_NOR_CARD_INT);
+ mvsd_write(SDIO_ERR_INTR_STATUS, SDIO_POLL_MASK);
+
+ /* Sending command */
+ mvsd_write(SDIO_CMD, resptype);
+/*
+ mvsd_write(SDIO_CMD, MRVL_MMC_MAKE_CMD(cmd->cmdidx, resptype));
+*/
+
+ mvsd_write(SDIO_NOR_INTR_EN, SDIO_POLL_MASK);
+ mvsd_write(SDIO_ERR_INTR_EN, SDIO_POLL_MASK);
+
+ /* Waiting for completion */
+ timeout = 1000000;
+
+ while (!((mvsd_read(SDIO_NOR_INTR_STATUS)) & waittype)) {
+ if (mvsd_read(SDIO_NOR_INTR_STATUS) & SDIO_NOR_ERROR) {
+#ifdef DEBUG
+ printf("%s: mrvl_mmc_send_cmd: error! cmdidx : %d, err
reg: %04x\n", DRIVER_NAME, cmd->cmdidx, mvsd_read(SDIO_ERR_INTR_STATUS));
+#endif
+ if (mvsd_read(SDIO_ERR_INTR_STATUS) &
(SDIO_ERR_CMD_TIMEOUT | SDIO_ERR_DATA_TIMEOUT))
+ return TIMEOUT;
+ return COMM_ERR;
+ }
+
+ timeout--;
+ udelay(1);
+ if (timeout <= 0) {
+ printf("%s: command timed out\n", DRIVER_NAME);
+ return TIMEOUT;
+ }
+ }
+
+ /* Handling response */
+ if (cmd->resp_type & MMC_RSP_136) {
+ uint response[8];
+ for (resp_indx = 0; resp_indx < 8; resp_indx++)
+ response[resp_indx] = mvsd_read(SDIO_RSP(resp_indx));
+
+ cmd->response[0] = ((response[0] & 0x03ff) << 22) |
+ ((response[1] &
0xffff) << 6) |
+ ((response[2] &
0xfc00) >> 10);
+ cmd->response[1] = ((response[2] & 0x03ff) << 22) |
+ ((response[3] &
0xffff) << 6) |
+ ((response[4] &
0xfc00) >> 10);
+ cmd->response[2] = ((response[4] & 0x03ff) << 22) |
+ ((response[5] &
0xffff) << 6) |
+ ((response[6] &
0xfc00) >> 10);
+ cmd->response[3] = ((response[6] & 0x03ff) << 22) |
+ ((response[7] &
0x3fff) << 8);
+ } else if (cmd->resp_type & MMC_RSP_PRESENT) {
+ uint response[3];
+ for (resp_indx = 0; resp_indx < 3; resp_indx++)
+ response[resp_indx] = mvsd_read(SDIO_RSP(resp_indx));
+
+ cmd->response[0] = ((response[2] & 0x003f) << (8 -
8)) |
+ ((response[1] &
0xffff) << (14 - 8)) |
+ ((response[0] &
0x03ff) << (30 - 8));
+ cmd->response[1] = ((response[0] & 0xfc00) >> 10);
+ cmd->response[2] = 0;
+ cmd->response[3] = 0;
+ }
+
+#ifdef CONFIG_MMC_DEBUG
+ printf("%s: resp[0x%x] ", DRIVER_NAME, cmd->resp_type);
+ printf("[0x%x] ", cmd->response[0]);
+ printf("[0x%x] ", cmd->response[1]);
+ printf("[0x%x] ", cmd->response[2]);
+ printf("[0x%x] ", cmd->response[3]);
+ printf("\n");
+#endif
+
+ return 0;
+}
+
+static void mvsd_power_up(void)
+{
+#ifdef DEBUG
+ printf("%s: power up\n", DRIVER_NAME);
+#endif
+ /* disable interrupts */
+ mvsd_write(SDIO_NOR_INTR_EN, 0);
+ mvsd_write(SDIO_ERR_INTR_EN, 0);
+
+ /* SW reset */
+ mvsd_write(SDIO_SW_RESET, SDIO_SW_RESET_NOW);
+
+ mvsd_write(SDIO_XFER_MODE, 0);
+
+ /* enable status */
+ mvsd_write(SDIO_NOR_STATUS_EN, SDIO_POLL_MASK);
+ mvsd_write(SDIO_ERR_STATUS_EN, SDIO_POLL_MASK);
+
+ /* enable interrupts status */
+ mvsd_write(SDIO_NOR_INTR_STATUS, SDIO_POLL_MASK);
+ mvsd_write(SDIO_ERR_INTR_STATUS, SDIO_POLL_MASK);
+}
+
+static void mvsd_power_down(void)
+{
+#ifdef DEBUG
+ printf("%s: power down\n", DRIVER_NAME);
+#endif
+ /* disable interrupts */
+ mvsd_write(SDIO_NOR_INTR_EN, 0);
+ mvsd_write(SDIO_ERR_INTR_EN, 0);
+
+ /* SW reset */
+ mvsd_write(SDIO_SW_RESET, SDIO_SW_RESET_NOW);
+
+ mvsd_write(SDIO_XFER_MODE, SDIO_XFER_MODE_STOP_CLK);
+
+ /* disable status */
+ mvsd_write(SDIO_NOR_STATUS_EN, 0);
+ mvsd_write(SDIO_ERR_STATUS_EN, 0);
+
+ /* enable interrupts status */
+ mvsd_write(SDIO_NOR_INTR_STATUS, SDIO_POLL_MASK);
+ mvsd_write(SDIO_ERR_INTR_STATUS, SDIO_POLL_MASK);
+}
+
+static u32 mrvl_mmc_get_base_clock(void)
+{
+ u32 devid;
+ u32 revid;
+
+ if (0) {
+ kirkwood_pcie_id(&devid, &revid);
+
+#ifdef DEBUG
+ printf("%s: board devid[0x%x] devid[0x%x]\n", DRIVER_NAME,
devid, revid);
+#endif
+
+ if (revid == 0 && devid != MV88F6282_DEV_ID){
+ /* catch all Kirkwood Z0's */
+#ifdef DEBUG
+ printf("%s: Kirkwood Z0's base clock = %d\n",
DRIVER_NAME, MRVL_MMC_BASE_FAST_CLK_100);
+#endif
+ return MRVL_MMC_BASE_FAST_CLK_100;
+ }else{
+#ifdef DEBUG
+ printf("%s: base clock = %d\n", DRIVER_NAME,
MRVL_MMC_BASE_FAST_CLK_200);
+#endif
+ return MRVL_MMC_BASE_FAST_CLK_200;
+ }
+ }
+ return MRVL_MMC_BASE_FAST_CLOCK;
+}
+
+static void mrvl_mmc_set_clk(unsigned int clock)
+{
+ unsigned int m;
+
+ if (clock == 0){
+#ifdef DEBUG
+ printf("%s: clock off\n", DRIVER_NAME);
+#endif
+ mvsd_write(SDIO_XFER_MODE, SDIO_XFER_MODE_STOP_CLK);
+ mvsd_write(SDIO_CLK_DIV, MRVL_MMC_BASE_DIV_MAX);
+ }else{
+ m = MRVL_MMC_BASE_FAST_CLOCK/(2*clock) - 1;
+ if (m > MRVL_MMC_BASE_DIV_MAX)
+ m = MRVL_MMC_BASE_DIV_MAX;
+#ifdef DEBUG
+ printf("%s: mrvl_mmc_set_clk: base = %d dividor = 0x%x
clock=%d\n", DRIVER_NAME, mrvl_mmc_get_base_clock(), m, clock);
+#endif
+ mvsd_write(SDIO_CLK_DIV, m & MRVL_MMC_BASE_DIV_MAX);
+ }
+ udelay(10*1000);
+}
+
+static void mrvl_mmc_set_bus(unsigned int bus)
+{
+ u32 ctrl_reg = 0;
+
+ ctrl_reg = mvsd_read(SDIO_HOST_CTRL);
+ ctrl_reg &= ~SDIO_HOST_CTRL_DATA_WIDTH_4_BITS;
+
+ switch (bus) {
+ case 4:
+ ctrl_reg |= SDIO_HOST_CTRL_DATA_WIDTH_4_BITS;
+ break;
+ case 1:
+ default:
+ ctrl_reg |= SDIO_HOST_CTRL_DATA_WIDTH_1_BIT;
+ }
+ /* default transfer mode */
+ ctrl_reg |= SDIO_HOST_CTRL_BIG_ENDIAN;
+ ctrl_reg &= ~SDIO_HOST_CTRL_LSB_FIRST;
+
+ /* default to maximum timeout */
+ ctrl_reg |= SDIO_HOST_CTRL_TMOUT(SDIO_HOST_CTRL_TMOUT_MAX);
+
+ ctrl_reg |= SDIO_HOST_CTRL_PUSH_PULL_EN;
+
+ ctrl_reg |= SDIO_HOST_CTRL_CARD_TYPE_MEM_ONLY;
+
+ /*
+ * The HI_SPEED_EN bit is causing trouble with many (but not all)
+ * high speed SD, SDHC and SDIO cards. Not enabling that bit
+ * makes all cards work. So let's just ignore that bit for now
+ * and revisit this issue if problems for not enabling this bit
+ * are ever reported.
+ */
+#if 0
+ if (ios->timing == MMC_TIMING_MMC_HS ||
+ ios->timing == MMC_TIMING_SD_HS)
+ ctrl_reg |= SDIO_HOST_CTRL_HI_SPEED_EN;
+#endif
+
+#ifdef DEBUG
+ printf("%s: ctrl 0x%04x: %s %s %s\n", DRIVER_NAME, ctrl_reg,
+ (ctrl_reg & SDIO_HOST_CTRL_PUSH_PULL_EN) ?
+ "push-pull" : "open-drain",
+ (ctrl_reg & SDIO_HOST_CTRL_DATA_WIDTH_4_BITS) ?
+ "4bit-width" : "1bit-width",
+ (ctrl_reg & SDIO_HOST_CTRL_HI_SPEED_EN) ?
+ "high-speed" : "");
+#endif
+
+ mvsd_write(SDIO_HOST_CTRL, ctrl_reg);
+ udelay(10*1000);
+}
+
+static void mrvl_mmc_set_ios(struct mmc *mmc)
+{
+#ifdef DEBUG
+ printf("%s: bus[%d] clock[%d]\n", DRIVER_NAME, mmc->bus_width,
mmc->clock);
+#endif
+ mrvl_mmc_set_bus(mmc->bus_width);
+ mrvl_mmc_set_clk(mmc->clock);
+}
+
+static int mrvl_mmc_init(struct mmc *mmc)
+{
+#ifdef DEBUG
+ printf("%s: mrvl_mmc_init\n", DRIVER_NAME);
+#endif
+
+/*
+ * Setting host parameters
+ * Initial Host Ctrl : Timeout : max , Normal Speed mode, 4-bit data mode
+ * Big Endian, SD memory Card, Push_pull CMD Line
+ */
+ mvsd_write(SDIO_HOST_CTRL,
+ SDIO_HOST_CTRL_TMOUT(SDIO_HOST_CTRL_TMOUT_MAX) |
+ SDIO_HOST_CTRL_DATA_WIDTH_4_BITS |
+ SDIO_HOST_CTRL_BIG_ENDIAN |
+ SDIO_HOST_CTRL_PUSH_PULL_EN |
+ SDIO_HOST_CTRL_CARD_TYPE_MEM_ONLY );
+
+ mvsd_write(SDIO_CLK_CTRL, 0);
+
+ /* enable status */
+ mvsd_write(SDIO_NOR_STATUS_EN, SDIO_POLL_MASK);
+ mvsd_write(SDIO_ERR_STATUS_EN, SDIO_POLL_MASK);
+
+ /* disable interrupts */
+ mvsd_write(SDIO_NOR_INTR_EN, 0);
+ mvsd_write(SDIO_ERR_INTR_EN, 0);
+
+ /* SW reset */
+ mvsd_write(SDIO_SW_RESET, SDIO_SW_RESET_NOW);
+
+ udelay(10*1000);
+ return 0;
+}
+
+int mrvl_mmc_initialize(bd_t *bis)
+{
+ struct mmc *mmc = NULL;
+
+#ifdef DEBUG
+ printf("%s: %s base_clock = %d\n", DRIVER_NAME, kirkwood_id(),
mrvl_mmc_get_base_clock());
+#endif
+ mmc = malloc(sizeof(struct mmc));
+ if (!mmc)
+ return -1;
+
+ sprintf(mmc->name, DRIVER_NAME);
+ mmc->send_cmd = mrvl_mmc_send_cmd;
+ mmc->set_ios = mrvl_mmc_set_ios;
+ mmc->init = mrvl_mmc_init;
+
+ mmc->voltages = MMC_VDD_32_33 | MMC_VDD_33_34;
+ mmc->host_caps = MMC_MODE_4BIT | MMC_MODE_HS;
+
+ mmc->f_min = MRVL_MMC_BASE_FAST_CLOCK/MRVL_MMC_BASE_DIV_MAX;
+ mmc->f_max = maxfreq;
+
+ mmc_register(mmc);
+
+ return 0;
+}
+
diff --git a/include/mrvl_mmc.h b/include/mrvl_mmc.h
new file mode 100644
index 0000000..b5fa91c
--- /dev/null
+++ b/include/mrvl_mmc.h
@@ -0,0 +1,266 @@
+/*
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * (C) Copyright 2012
+ * Marvell Semiconductor <www.marvell.com>
+ * Written-by: Gérald Kerma <ub...@doukki.net>
+ * 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
+ */
+
+#ifndef __MRVL_MMC_H__
+#define __MRVL_MMC_H__
+
+/*
+ * Clock rates
+ */
+
+#define MRVL_MMC_CLOCKRATE_MAX 50000000
+#define MRVL_MMC_BASE_DIV_MAX 0x7ff
+#define MRVL_MMC_BASE_FAST_CLOCK CONFIG_SYS_TCLK
+#define MRVL_MMC_BASE_FAST_CLK_100 100000000
+#define MRVL_MMC_BASE_FAST_CLK_200 200000000
+
+/* SDIO register */
+#define SDIO_SYS_ADDR_LOW 0x000
+#define SDIO_SYS_ADDR_HI 0x004
+#define SDIO_BLK_SIZE 0x008
+#define SDIO_BLK_COUNT 0x00c
+#define SDIO_ARG_LOW 0x010
+#define SDIO_ARG_HI 0x014
+#define SDIO_XFER_MODE 0x018
+#define SDIO_CMD 0x01c
+#define SDIO_RSP(i) (0x020 + ((i)<<2))
+#define SDIO_RSP0 0x020
+#define SDIO_RSP1 0x024
+#define SDIO_RSP2 0x028
+#define SDIO_RSP3 0x02c
+#define SDIO_RSP4 0x030
+#define SDIO_RSP5 0x034
+#define SDIO_RSP6 0x038
+#define SDIO_RSP7 0x03c
+#define SDIO_BUF_DATA_PORT 0x040
+#define SDIO_RSVED 0x044
+#define SDIO_HW_STATE 0x048
+#define SDIO_PRESENT_STATE0 0x048
+#define SDIO_PRESENT_STATE1 0x04c
+#define SDIO_HOST_CTRL 0x050
+#define SDIO_BLK_GAP_CTRL 0x054
+#define SDIO_CLK_CTRL 0x058
+#define SDIO_SW_RESET 0x05c
+#define SDIO_NOR_INTR_STATUS 0x060
+#define SDIO_ERR_INTR_STATUS 0x064
+#define SDIO_NOR_STATUS_EN 0x068
+#define SDIO_ERR_STATUS_EN 0x06c
+#define SDIO_NOR_INTR_EN 0x070
+#define SDIO_ERR_INTR_EN 0x074
+#define SDIO_AUTOCMD12_ERR_STATUS 0x078
+#define SDIO_CURR_BYTE_LEFT 0x07c
+#define SDIO_CURR_BLK_LEFT 0x080
+#define SDIO_AUTOCMD12_ARG_LOW 0x084
+#define SDIO_AUTOCMD12_ARG_HI 0x088
+#define SDIO_AUTOCMD12_INDEX 0x08c
+#define SDIO_AUTO_RSP(i) (0x090 + ((i)<<2))
+#define SDIO_AUTO_RSP0 0x090
+#define SDIO_AUTO_RSP1 0x094
+#define SDIO_AUTO_RSP2 0x098
+#define SDIO_CLK_DIV 0x128
+
+#define WINDOW_CTRL(i) (0x108 + ((i) << 3))
+#define WINDOW_BASE(i) (0x10c + ((i) << 3))
+
+/* SDIO_PRESENT_STATE */
+#define CARD_BUSY (1 << 1)
+#define CMD_INHIBIT (1 << 0)
+#define CMD_TXACTIVE (1 << 8)
+#define CMD_RXACTIVE (1 << 9)
+#define CMD_AUTOCMD12ACTIVE (1 << 14)
+#define CMD_BUS_BUSY (CMD_AUTOCMD12ACTIVE | \
+ CMD_RXACTIVE |
\
+ CMD_TXACTIVE |
\
+ CMD_INHIBIT |
\
+ CARD_BUSY)
+
+/*
+ * SDIO_CMD
+ */
+
+#define SDIO_CMD_RSP_NONE (0 << 0)
+#define SDIO_CMD_RSP_136 (1 << 0)
+#define SDIO_CMD_RSP_48 (2 << 0)
+#define SDIO_CMD_RSP_48BUSY (3 << 0)
+
+#define SDIO_CMD_CHECK_DATACRC16 (1 << 2)
+#define SDIO_CMD_CHECK_CMDCRC (1 << 3)
+#define SDIO_CMD_INDX_CHECK (1 << 4)
+#define SDIO_CMD_DATA_PRESENT (1 << 5)
+#define SDIO_UNEXPECTED_RESP (1 << 7)
+
+#define SDIO_CMD_INDEX(x) ((x) << 8)
+
+/*
+ * SDIO_XFER_MODE
+ */
+
+#define SDIO_XFER_MODE_STOP_CLK (1 << 5)
+#define SDIO_XFER_MODE_HW_WR_DATA_EN (1 << 1)
+#define SDIO_XFER_MODE_AUTO_CMD12 (1 << 2)
+#define SDIO_XFER_MODE_INT_CHK_EN (1 << 3)
+#define SDIO_XFER_MODE_TO_HOST (1 << 4)
+#define SDIO_XFER_MODE_DMA (0 << 6)
+
+/*
+ * SDIO_HOST_CTRL
+ */
+
+#define SDIO_HOST_CTRL_PUSH_PULL_EN (1 << 0)
+
+#define SDIO_HOST_CTRL_CARD_TYPE_MEM_ONLY (0 << 1)
+#define SDIO_HOST_CTRL_CARD_TYPE_IO_ONLY (1 << 1)
+#define SDIO_HOST_CTRL_CARD_TYPE_IO_MEM_COMBO (2 << 1)
+#define SDIO_HOST_CTRL_CARD_TYPE_IO_MMC (3 << 1)
+#define SDIO_HOST_CTRL_CARD_TYPE_MASK (3 << 1)
+
+#define SDIO_HOST_CTRL_BIG_ENDIAN (1 << 3)
+#define SDIO_HOST_CTRL_LSB_FIRST (1 << 4)
+#define SDIO_HOST_CTRL_DATA_WIDTH_1_BIT (0 << 9)
+#define SDIO_HOST_CTRL_DATA_WIDTH_4_BITS (1 << 9)
+#define SDIO_HOST_CTRL_HI_SPEED_EN (1 << 10)
+
+#define SDIO_HOST_CTRL_TMOUT_MAX 0xf
+#define SDIO_HOST_CTRL_TMOUT_MASK (0xf << 11)
+#define SDIO_HOST_CTRL_TMOUT(x) ((x) << 11)
+#define SDIO_HOST_CTRL_TMOUT_EN (1 << 15)
+
+/*
+ * SDIO_SW_RESET
+ */
+
+#define SDIO_SW_RESET_NOW (1 << 8)
+
+/*
+ * Normal interrupt status bits
+ */
+
+#define SDIO_NOR_ERROR (1 << 15)
+#define SDIO_NOR_UNEXP_RSP (1 << 14)
+#define SDIO_NOR_AUTOCMD12_DONE (1 << 13)
+#define SDIO_NOR_SUSPEND_ON (1 << 12)
+#define SDIO_NOR_LMB_FF_8W_AVAIL (1 << 11)
+#define SDIO_NOR_LMB_FF_8W_FILLED (1 << 10)
+#define SDIO_NOR_READ_WAIT_ON (1 << 9)
+#define SDIO_NOR_CARD_INT (1 << 8)
+#define SDIO_NOR_READ_READY (1 << 5)
+#define SDIO_NOR_WRITE_READY (1 << 4)
+#define SDIO_NOR_DMA_INI (1 << 3)
+#define SDIO_NOR_BLK_GAP_EVT (1 << 2)
+#define SDIO_NOR_XFER_DONE (1 << 1)
+#define SDIO_NOR_CMD_DONE (1 << 0)
+
+/*
+ * Error status bits
+ */
+
+#define SDIO_ERR_CRC_STATUS (1 << 14)
+#define SDIO_ERR_CRC_STARTBIT (1 << 13)
+#define SDIO_ERR_CRC_ENDBIT (1 << 12)
+#define SDIO_ERR_RESP_TBIT (1 << 11)
+#define SDIO_ERR_XFER_SIZE (1 << 10)
+#define SDIO_ERR_CMD_STARTBIT (1 << 9)
+#define SDIO_ERR_AUTOCMD12 (1 << 8)
+#define SDIO_ERR_DATA_ENDBIT (1 << 6)
+#define SDIO_ERR_DATA_CRC (1 << 5)
+#define SDIO_ERR_DATA_TIMEOUT (1 << 4)
+#define SDIO_ERR_CMD_INDEX (1 << 3)
+#define SDIO_ERR_CMD_ENDBIT (1 << 2)
+#define SDIO_ERR_CMD_CRC (1 << 1)
+#define SDIO_ERR_CMD_TIMEOUT (1 << 0)
+#define SDIO_POLL_MASK 0xffff /* enable all
for polling */
+
+#define MMC_BLOCK_SIZE 512
+
+/*
+ * CMD12 error status bits
+ */
+
+#define SDIO_AUTOCMD12_ERR_NOTEXE (1 << 0)
+#define SDIO_AUTOCMD12_ERR_TIMEOUT (1 << 1)
+#define SDIO_AUTOCMD12_ERR_CRC (1 << 2)
+#define SDIO_AUTOCMD12_ERR_ENDBIT (1 << 3)
+#define SDIO_AUTOCMD12_ERR_INDEX (1 << 4)
+#define SDIO_AUTOCMD12_ERR_RESP_T_BIT (1 << 5)
+#define SDIO_AUTOCMD12_ERR_RESP_STARTBIT (1 << 6)
+
+#define MMC_RSP_PRESENT (1 << 0)
+#define MMC_RSP_136 (1 << 1) /* 136 bit response */
+#define MMC_RSP_CRC (1 << 2) /* expect valid crc */
+#define MMC_RSP_BUSY (1 << 3) /* card may send busy */
+#define MMC_RSP_OPCODE (1 << 4) /* response contains opcode */
+
+#define MMC_BUSMODE_OPENDRAIN 1
+#define MMC_BUSMODE_PUSHPULL 2
+
+#define MMC_BUS_WIDTH_1 0
+#define MMC_BUS_WIDTH_4 2
+#define MMC_BUS_WIDTH_8 3
+
+#define MMC_CAP_4_BIT_DATA (1 << 0) /* Can the host do 4 bit
transfers */
+#define MMC_CAP_MMC_HIGHSPEED (1 << 1) /* Can do MMC high-speed timing
*/
+#define MMC_CAP_SD_HIGHSPEED (1 << 2) /* Can do SD high-speed timing
*/
+#define MMC_CAP_SDIO_IRQ (1 << 3) /* Can signal pending SDIO IRQs
*/
+#define MMC_CAP_SPI (1 << 4) /* Talks only SPI protocols */
+#define MMC_CAP_NEEDS_POLL (1 << 5) /* Needs polling for
card-detection */
+#define MMC_CAP_8_BIT_DATA (1 << 6) /* Can the host do 8 bit
transfers */
+
+#define MMC_CAP_NONREMOVABLE (1 << 8) /* Nonremovable e.g. eMMC */
+#define MMC_CAP_WAIT_WHILE_BUSY (1 << 9) /* Waits while card is
busy */
+#define MMC_CAP_ERASE (1 << 10) /* Allow erase/trim commands */
+#define MMC_CAP_1_8V_DDR (1 << 11) /* can support */
+ /* DDR mode at 1.8V */
+#define MMC_CAP_1_2V_DDR (1 << 12) /* can support */
+ /* DDR mode at 1.2V */
+#define MMC_CAP_POWER_OFF_CARD (1 << 13) /* Can power off after boot */
+#define MMC_CAP_BUS_WIDTH_TEST (1 << 14) /* CMD14/CMD19 bus width ok */
+#define MMC_CAP_UHS_SDR12 (1 << 15) /* Host supports UHS SDR12 mode
*/
+#define MMC_CAP_UHS_SDR25 (1 << 16) /* Host supports UHS SDR25 mode
*/
+#define MMC_CAP_UHS_SDR50 (1 << 17) /* Host supports UHS SDR50 mode
*/
+#define MMC_CAP_UHS_SDR104 (1 << 18) /* Host supports UHS SDR104
mode */
+#define MMC_CAP_UHS_DDR50 (1 << 19) /* Host supports UHS DDR50 mode
*/
+#define MMC_CAP_DRIVER_TYPE_A (1 << 23) /* Host supports Driver Type A
*/
+#define MMC_CAP_DRIVER_TYPE_C (1 << 24) /* Host supports Driver Type C
*/
+#define MMC_CAP_DRIVER_TYPE_D (1 << 25) /* Host supports Driver Type D
*/
+#define MMC_CAP_CMD23 (1 << 30) /* CMD23 supported. */
+#define MMC_CAP_HW_RESET (1 << 31) /* Hardware reset */
+
+/*
+ * Functions prototypes
+ */
+
+static int mrvl_mmc_setup_data(struct mmc_data *data);
+static int mrvl_mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct
mmc_data *data);
+static void mvsd_power_up(void);
+static void mvsd_power_down(void);
+static u32 mrvl_mmc_get_base_clock(void);
+static void mrvl_mmc_set_clk(uint clock);
+static void mrvl_mmc_set_bus(unsigned int bus);
+static void mrvl_mmc_set_ios(struct mmc *mmc);
+static int mrvl_mmc_init(struct mmc *mmc);
+int mrvl_mmc_initialize(bd_t *bis);
+
+#endif /* __MRVL_MMC_H__ */
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