Add SDIO legacy driver for Marvell SoCs (Kirkwood)
Signed-off-by: Gérald Kerma <gera...@gmail.com>
---
v3:
* GNU Software License compliance
* Patch more readable
v2:
* Code cleaning
v1:
* Fix errors from SD/SDHC detect
---
drivers/mmc/Makefile | 1 +
drivers/mmc/mv_sdio.c | 675
+++++++++++++++++++++++++++++++++++++++++++++++++
drivers/mmc/mv_sdio.h | 313 +++++++++++++++++++++++
3 files changed, 989 insertions(+), 0 deletions(-)
diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile
index 68afd30..2a4e1d4 100644
--- a/drivers/mmc/Makefile
+++ b/drivers/mmc/Makefile
@@ -30,6 +30,7 @@ COBJS-$(CONFIG_BFIN_SDH) += bfin_sdh.o
COBJS-$(CONFIG_FSL_ESDHC) += fsl_esdhc.o
COBJS-$(CONFIG_GENERIC_MMC) += mmc.o
COBJS-$(CONFIG_GENERIC_ATMEL_MCI) += gen_atmel_mci.o
+COBJS-$(CONFIG_MV_SDIO) += mv_sdio.o
COBJS-$(CONFIG_MXC_MMC) += mxcmmc.o
COBJS-$(CONFIG_OMAP3_MMC) += omap3_mmc.o
COBJS-$(CONFIG_OMAP_HSMMC) += omap_hsmmc.o
diff --git a/drivers/mmc/mv_sdio.c b/drivers/mmc/mv_sdio.c
new file mode 100644
index 0000000..35969d3
--- /dev/null
+++ b/drivers/mmc/mv_sdio.c
@@ -0,0 +1,675 @@
+/*
+ * (C) Copyright 2009
+ * Marvell Semiconductor <www.marvell.com>
+ * Written-by: Gérald Kerma <gera...@gmail.com>
+ *
+ * (C) Copyright 2003
+ * Kyle Harris, Nexus Technologies, Inc. khar...@nexus-tech.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., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+#include <config.h>
+#include <common.h>
+#include <malloc.h>
+#include <mmc.h>
+#include <asm/errno.h>
+#include <part.h>
+#include <asm/io.h>
+#ifdef CONFIG_KIRKWOOD
+#include <asm/arch/kirkwood.h>
+#endif
+#include "mv_sdio.h"
+
+#ifdef CONFIG_MMC
+
+#define DRIVER_NAME "mv-sdio"
+
+#ifdef DEBUG
+#define pr_debug(fmt, args...) printf(fmt, ##args)
+#else
+#define pr_debug(...) do { } while(0)
+#endif
+
+//static mv_sdio_t *mvsd = (mv_sdio_t *)mmc->priv;
+static mv_sdio_t *mvsd = (mv_sdio_t *)MV_SDIO_BASE;
+
+static int is_sdhc;
+extern int fat_register_device(block_dev_desc_t *dev_desc, int part_no);
+static block_dev_desc_t mmc_dev;
+block_dev_desc_t * mmc_get_dev(int dev)
+{
+ return ((block_dev_desc_t *)&mmc_dev);
+}
+
+/*
+ * FIXME needs to read cid and csd info to determine block size
+ * and other parameters
+ */
+static uchar mmc_buf[MMC_BLOCK_SIZE];
+static mv_mmc_csd_t mv_mmc_csd;
+static int mmc_ready = 0;
+
+/* MMC_DEFAULT_RCA should probably be just 1, but this may break other code
+ that expects it to be shifted. */
+static u_int16_t rca = 0;
+
+/* used for debug */
+static u_int32_t mv_mmc_size(const struct mv_mmc_csd *csd)
+{
+ u_int32_t block_len, mult, blocknr;
+
+ block_len = csd->read_bl_len << 12;
+ mult = csd->c_size_mult1 << 8;
+ blocknr = (csd->c_size+1) * mult;
+
+ return blocknr * block_len;
+}
+
+static int isprint (unsigned char ch)
+{
+ if (ch >= 32 && ch < 127)
+ return (1);
+
+ return (0);
+}
+
+static int toprint(char *dst, char c)
+{
+ if (isprint(c)) {
+ *dst = c;
+ return 1;
+ }
+
+ return sprintf(dst,"\\x%02x", c);
+
+}
+
+static void print_mmc_cid(mv_mmc_cid_t *cid)
+{
+ printf("MMC found. Card desciption is:\n");
+ printf("Manufacturer ID = %02x%02x%02x\n",
+ cid->id[0], cid->id[1], cid->id[2]);
+ printf("HW/FW Revision = %x %x\n",cid->hwrev, cid->fwrev);
+ cid->hwrev = cid->fwrev = 0; /* null terminate string */
+ printf("Product Name = %s\n",cid->name);
+ printf("Serial Number = %02x%02x%02x\n",
+ cid->sn[0], cid->sn[1], cid->sn[2]);
+ printf("Month = %d\n",cid->month);
+ printf("Year = %d\n",1997 + cid->year);
+}
+
+static void print_sd_cid(mv_sd_cid_t *cid)
+{
+ int len;
+ char tbuf[64];
+
+ printf("SD%s found. Card desciption is:\n", is_sdhc?"HC":"");
+
+ len = 0;
+ len += toprint(&tbuf[len], cid->oid_0);
+ len += toprint(&tbuf[len], cid->oid_1);
+ tbuf[len] = 0;
+
+ printf("Manufacturer: 0x%02x, OEM \"%s\"\n",
+ cid->mid, tbuf);
+
+ len = 0;
+ len += toprint(&tbuf[len], cid->pnm_0);
+ len += toprint(&tbuf[len], cid->pnm_1);
+ len += toprint(&tbuf[len], cid->pnm_2);
+ len += toprint(&tbuf[len], cid->pnm_3);
+ len += toprint(&tbuf[len], cid->pnm_4);
+ tbuf[len] = 0;
+
+ printf("Product name: \"%s\", revision %d.%d\n",
+ tbuf,
+ cid->prv >> 4, cid->prv & 15);
+
+ printf("Serial number: %u\n",
+ cid->psn_0 << 24 | cid->psn_1 << 16 | cid->psn_2 << 8 |
+ cid->psn_3);
+ printf("Manufacturing date: %d/%d\n",
+ cid->mdt_1 & 15,
+ 2000+((cid->mdt_0 & 15) << 4)+((cid->mdt_1 & 0xf0) >> 4));
+
+ printf("CRC: 0x%02x, b0 = %d\n",
+ cid->crc >> 1, cid->crc & 1);
+}
+
+static void mvsdio_set_clock(unsigned int clock)
+{
+ unsigned int m;
+
+ m = MVSDMMC_BASE_FAST_CLOCK/(2*clock) - 1;
+
+ pr_debug("mvsdio_set_clock: dividor = 0x%x clock=%d\n",
+ m, clock);
+
+
+ writew(m & 0x7ff, &mvsd->CLK_DIV);
+
+ if (isprint(1))
+ udelay(10*1000);
+}
+
+/****************************************************/
+static ulong * mv_mmc_cmd(ulong cmd, ulong arg, ushort xfermode, ushort
resptype, ushort waittype)
+/****************************************************/
+{
+ static ulong resp[4];
+ ushort done ;
+ int err = 0 ;
+ ulong curr, start, diff, hz;
+ ushort response[8];
+
+ pr_debug("mv_mmc_cmd %x, arg: %x,xfer: %x,resp: %x, wait : %x\n"
+ , (unsigned int)cmd, (unsigned int)arg, xfermode, resptype, waittype);
+
+
+ /* clear status */
+ writew(0xffff, &mvsd->NOR_INTR_STATUS);
+ writew(0xffff, &mvsd->ERR_INTR_STATUS);
+
+ start = get_timer(0);
+ hz = CONFIG_SYS_HZ;
+
+ while((readw(&mvsd->PRESENT_STATE0) & CARD_BUSY)) {
+ curr = get_timer(0);
+ diff = (long) curr - (long) start;
+ if (diff > (3*hz))
+ {
+ /* 3 seconds timeout, card busy, can't sent cmd */
+ printf("card too busy \n");
+ return 0;
+ }
+ }
+
+ writew((ushort)(arg&0xffff), &mvsd->ARG_LOW);
+ writew((ushort)(arg>>16), &mvsd->ARG_HI);
+ writew(xfermode, &mvsd->XFER_MODE);
+ if( (cmd == MMC_CMD_READ_BLOCK) || (cmd == 25) )
+ {
+ writew(((cmd << 8) | resptype | 0x3c ) , &mvsd->CMD);
+ pr_debug("cmd reg : %x\n", readw(&mvsd->CMD)) ;
+
+ }
+ else
+ {
+ writew(((cmd << 8) | resptype ), &mvsd->CMD);
+ }
+
+ done = readw(&mvsd->NOR_INTR_STATUS) & waittype;
+ start = get_timer(0);
+
+ while( done!=waittype)
+ {
+ done = readw(&mvsd->NOR_INTR_STATUS) & waittype;
+
+ if( readw(&mvsd->NOR_INTR_STATUS) & 0x8000 )
+ {
+ pr_debug("Error! cmd : %d, err : %04x\n", (unsigned
int)cmd,
readw(&mvsd->ERR_INTR_STATUS)) ;
+
+ return 0 ; /* error happen */
+ }
+
+ curr = get_timer(0);
+ diff = (long) curr - (long) start;
+ if (diff > (3*hz))
+ {
+ pr_debug("cmd timeout, status : %04x\n",
readw(&mvsd->NOR_INTR_STATUS));
+ pr_debug("xfer mode : %04x\n", readw(&mvsd->XFER_MODE));
+
+ err = 1 ;
+ break;
+ }
+ }
+
+ response[0] = readw(&mvsd->RSP0);
+ response[1] = readw(&mvsd->RSP1);
+ response[2] = readw(&mvsd->RSP2);
+ response[3] = readw(&mvsd->RSP3);
+ response[4] = readw(&mvsd->RSP4);
+ response[5] = readw(&mvsd->RSP5);
+ response[6] = readw(&mvsd->RSP6);
+ response[7] = readw(&mvsd->RSP7);
+
+ memset(resp, 0, sizeof(resp));
+
+ switch (resptype & 0x3) {
+ case SDIO_CMD_RSP_48:
+ case SDIO_CMD_RSP_48BUSY:
+ resp[0] = ((response[2] & 0x3f) << (8 - 8)) |
+ ((response[1] & 0xffff) << (14 - 8)) |
+ ((response[0] & 0x3ff) << (30 - 8));
+ resp[1] = ((response[0] & 0xfc00) >> 10);
+ break;
+
+ case SDIO_CMD_RSP_136:
+ resp[3] = ((response[7] & 0x3fff) << 8) |
+ ((response[6] & 0x3ff) << 22);
+ resp[2] = ((response[6] & 0xfc00) >> 10) |
+ ((response[5] & 0xffff) << 6) |
+ ((response[4] & 0x3ff) << 22);
+ resp[1] = ((response[4] & 0xfc00) >> 10) |
+ ((response[3] & 0xffff) << 6) |
+ ((response[2] & 0x3ff) << 22);
+ resp[0] = ((response[2] & 0xfc00) >> 10) |
+ ((response[1] & 0xffff) << 6) |
+ ((response[0] & 0x3ff) << 22);
+ break;
+ default:
+ return 0;
+ }
+ int i;
+ pr_debug("MMC resp :");
+ for (i=0; i<4; ++i ) {
+ pr_debug(" %08x", (unsigned int)resp[i]);
+ }
+ pr_debug("\n");
+ if( err )
+ return NULL ;
+ else
+ return resp;
+}
+
+/****************************************************/
+static int mv_mmc_block_read(uchar *dst, ulong src, ulong len)
+/****************************************************/
+{
+ ulong *resp;
+
+ if (len == 0) {
+ return 0;
+ }
+
+ if (is_sdhc) {
+ /* SDHC: use block address */
+ src >>= 9;
+ }
+
+ pr_debug("mmc_block_rd dst %lx src %lx len %d\n", (ulong)dst, src,
(int)len);
+
+ /* prepare for dma transfer */
+ writew(((ulong)(dst))&0xffff,&mvsd->SYS_ADDR_LOW);
+ writew(((ulong)(dst)>>16)&0xffff,&mvsd->SYS_ADDR_HI);
+ writew(len,&mvsd->BLK_SIZE);
+ writew(1,&mvsd->BLK_COUNT);
+
+ /* send read command */
+ resp = mv_mmc_cmd(MMC_CMD_READ_BLOCK, src, 0x10 ,
+ SDIO_CMD_RSP_48, SDIO_NOR_XFER_DONE);
+ if (!resp) {
+ pr_debug("mv_mmc_block_read: mmc read block cmd fails\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+/****************************************************/
+int mv_mmc_read(ulong src, uchar *dst, int size)
+/****************************************************/
+{
+ ulong end, part_start, part_end, part_len, aligned_start, aligned_end;
+ ulong mmc_block_size, mmc_block_address;
+
+ if (size == 0) {
+ return 0;
+ }
+
+ if (!mmc_ready) {
+ printf("Please initial the MMC first\n");
+ return -1;
+ }
+
+ mmc_block_size = MMC_BLOCK_SIZE;
+ mmc_block_address = ~(mmc_block_size - 1);
+
+ end = src + size;
+ part_start = ~mmc_block_address & src;
+ part_end = ~mmc_block_address & end;
+ aligned_start = mmc_block_address & src;
+ aligned_end = mmc_block_address & end;
+
+ /* all block aligned accesses */
+ pr_debug("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend
%lx\n",
+ (long unsigned int)src,(ulong)dst, end, part_start, part_end,
aligned_start, aligned_end);
+
+ if (part_start) {
+ part_len = mmc_block_size - part_start;
+ pr_debug("ps src %lx dst %lx end %lx pstart %lx pend %lx astart
%lx
aend %lx\n",
+ (long unsigned int)src,(ulong)dst, end, part_start, part_end,
aligned_start, aligned_end);
+
+ if ((mv_mmc_block_read(mmc_buf, aligned_start, mmc_block_size))
< 0) {
+ return -1;
+ }
+ memcpy(dst, mmc_buf+part_start, part_len);
+ dst += part_len;
+ src += part_len;
+ }
+ pr_debug("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend
%lx\n",
+ (long unsigned int)src,(ulong)dst, end, part_start, part_end,
aligned_start, aligned_end);
+
+ for (; src < aligned_end; aligned_start +=mmc_block_size, src +=
mmc_block_size, dst += mmc_block_size) {
+ pr_debug("al src %lx dst %lx end %lx pstart %lx pend %lx astart
%lx
aend %lx\n",
+ (long unsigned int)src,(ulong)dst, end, part_start, part_end,
aligned_start, aligned_end);
+
+ if ((mv_mmc_block_read(mmc_buf, aligned_start, mmc_block_size))
< 0) {
+ printf("mmc block read error\n");
+ return -1;
+ }
+ memcpy(dst, mmc_buf, mmc_block_size);
+ }
+ pr_debug("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend
%lx\n",
+ (long unsigned int)src,(ulong)dst, end, part_start, part_end,
aligned_start, aligned_end);
+
+ if (part_end && src < end) {
+ pr_debug("pe src %lx dst %lx end %lx pstart %lx pend %lx astart
%lx
aend %lx\n",
+ (long unsigned int)src,(ulong)dst, end, part_start, part_end,
aligned_start, aligned_end);
+
+ if ((mv_mmc_block_read(mmc_buf, aligned_end, mmc_block_size)) <
0) {
+ return -1;
+ }
+ memcpy(dst, mmc_buf, part_end);
+ }
+ return 0;
+}
+
+/****************************************************/
+static ulong mv_mmc_bread(int dev_num, ulong blknr, ulong blkcnt, ulong
*dst)
+/****************************************************/
+{
+ int mmc_block_size = MMC_BLOCK_SIZE;
+ ulong src = blknr * mmc_block_size;
+
+ mv_mmc_read(src, (uchar *)dst, blkcnt*mmc_block_size);
+ return blkcnt;
+}
+
+/****************************************************/
+int mmc_legacy_init(int verbose)
+/****************************************************/
+{
+ int retries, rc = -ENODEV;
+ ulong *resp;
+ int sd_ver20;
+ int is_sd;
+ ushort reg;
+ uchar cidbuf[64];
+
+ sd_ver20 = 0;
+ is_sdhc = 0;
+ is_sd = 0;
+
+ /* Initial Host Ctrl : Timeout : max , Normal Speed mode, 4-bit data
mode */
+ /* Big Endian, SD memory Card, Push_pull CMD Line */
+ writew( SDIO_HOST_CTRL_TMOUT(0xf) |
+ 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->HOST_CTRL);
+
+ writew( 0, &mvsd->CLK_CTRL);
+
+ /* enable status */
+ writew( 0xffff, &mvsd->NOR_STATUS_EN);
+ writew( 0xffff, &mvsd->ERR_STATUS_EN);
+
+ /* disable interrupts */
+ writew( 0, &mvsd->NOR_INTR_EN);
+ writew( 0, &mvsd->ERR_INTR_EN);
+
+ writew( 0x100, &mvsd->SW_RESET);
+ udelay(10000);
+
+ mv_mmc_csd.c_size = 0;
+
+ /* reset */
+ retries = 10;
+ resp = mv_mmc_cmd(0, 0, 0, SDIO_CMD_RSP_NONE, SDIO_NOR_CMD_DONE );
+ pr_debug("cmd 0 resp : %08x %08x %08x %08x\n",
+ (unsigned int)resp[0], (unsigned int)resp[1], (unsigned int)resp[2],
(unsigned int)resp[3] );
+
+
+ pr_debug ("trying to detect SD card version\n");
+
+ resp = mv_mmc_cmd(8, 0x000001aa, 0, SDIO_CMD_RSP_48, SDIO_NOR_CMD_DONE
);
+ pr_debug("cmd 8 resp : %08x %08x %08x %08x\n",
+ (unsigned int)resp[0], (unsigned int)resp[1], (unsigned int)resp[2],
(unsigned int)resp[3] );
+
+ if (resp && (resp[0] & 0x1ff)==0x1aa) {
+ pr_debug ("SD version 2.0 card detected\n");
+
+ sd_ver20 = 1;
+ }
+
+ if (sd_ver20)
+ retries = 50;
+ else
+ retries = 10;
+
+ while (retries--) {
+ resp = mv_mmc_cmd(55, 0, 0, SDIO_CMD_RSP_48, SDIO_NOR_CMD_DONE
);
+ pr_debug("cmd 55 resp : %08x %08x %08x %08x\n",
+ (unsigned int)resp[0], (unsigned int)resp[1], (unsigned
int)resp[2],
(unsigned int)resp[3] );
+
+
+ if (sd_ver20)
+ resp = mv_mmc_cmd(41, 0x40300000, 0, SDIO_CMD_RSP_48,
SDIO_NOR_CMD_DONE );
+ else
+ resp = mv_mmc_cmd(41, 0x00300000, 0, SDIO_CMD_RSP_48,
SDIO_NOR_CMD_DONE );
+
+ pr_debug("cmd 41 resp : %08x %08x %08x %08x\n",
+ (unsigned int)resp[0], (unsigned int)resp[1], (unsigned
int)resp[2],
(unsigned int)resp[3] );
+
+
+ if (resp && (resp[0] & 0x80000000)) {
+ pr_debug ("detected SD card\n");
+
+ is_sd = 1;
+ break;
+ }
+
+ udelay(100*1000);
+ }
+
+ if (retries <= 0 && !is_sd) {
+ pr_debug ("failed to detect SD card, trying MMC\n");
+
+ retries = 10;
+ while (retries--) {
+ resp = mv_mmc_cmd(1, 0, 0, SDIO_CMD_RSP_48,
SDIO_NOR_CMD_DONE );
+ pr_debug("cmd 01 resp : %08x %08x %08x %08x\n",
+ (unsigned int)resp[0], (unsigned int)resp[1], (unsigned
int)resp[2],
(unsigned int)resp[3] );
+
+
+ if (resp && (resp[0] & 0x80000000)) {
+ printf ("detected MMC card\n");
+ reg = readw(&mvsd->HOST_CTRL);
+ reg &= ~(0x3<<1);
+ reg |= SDIO_HOST_CTRL_CARD_TYPE_IO_MMC;
+ writew( reg, &mvsd->HOST_CTRL);
+ break;
+ }
+
+ udelay(100*1000);
+ }
+ }
+
+ if (retries <= 0) {
+ pr_debug ("detect fails\n");
+
+ return -ENODEV;
+ }
+
+ /* try to get card id */
+ resp = mv_mmc_cmd(2, 0, 0, SDIO_CMD_RSP_136, SDIO_NOR_CMD_DONE );
+ pr_debug("cmd 2 resp : %08x %08x %08x %08x\n",
+ (unsigned int)resp[0], (unsigned int)resp[1], (unsigned int)resp[2],
(unsigned int)resp[3] );
+
+
+ if (resp == NULL) {
+ pr_debug ("read cid fails\n");
+
+ return -ENODEV;
+ }
+
+ if (is_sd) {
+ mv_sd_cid_t *cid = (mv_sd_cid_t *) resp;
+
+ memcpy(cidbuf, resp, sizeof(mv_sd_cid_t));
+
+ sprintf((char *) mmc_dev.vendor,
+ "Man %02x OEM %c%c \"%c%c%c%c%c\"",
+ cid->mid, cid->oid_0, cid->oid_1,
+ cid->pnm_0, cid->pnm_1, cid->pnm_2, cid->pnm_3,
cid->pnm_4);
+
+ sprintf((char *) mmc_dev.product, "%d",
+ (cid->psn_0 << 24) | (cid->psn_1 <<16) | (cid->psn_2 <<
8) |
(cid->psn_3 << 8));
+
+ sprintf((char *) mmc_dev.revision, "%d.%d", cid->prv>>4,
cid->prv &
0xff);
+
+ } else {
+ /* TODO configure mmc driver depending on card attributes */
+ mv_mmc_cid_t *cid = (mv_mmc_cid_t *) resp;
+
+ memcpy(cidbuf, resp, sizeof(mv_sd_cid_t));
+
+
+ sprintf((char *) mmc_dev.vendor,
+ "Man %02x%02x%02x Snr %02x%02x%02x",
+ cid->id[0], cid->id[1], cid->id[2],
+ cid->sn[0], cid->sn[1], cid->sn[2]);
+ sprintf((char *) mmc_dev.product, "%s", cid->name);
+ sprintf((char *) mmc_dev.revision, "%x %x", cid->hwrev,
cid->fwrev);
+ }
+
+ /* fill in device description */
+ mmc_dev.if_type = IF_TYPE_MMC;
+ mmc_dev.part_type = PART_TYPE_DOS;
+ mmc_dev.dev = 0;
+ mmc_dev.lun = 0;
+ mmc_dev.type = 0;
+
+ /* FIXME fill in the correct size (is set to 128MByte) */
+ mmc_dev.blksz = MMC_BLOCK_SIZE;
+ mmc_dev.lba = 0x10000;
+
+ mmc_dev.removable = 0;
+ mmc_dev.block_read = (unsigned long) mv_mmc_bread;
+
+ /* MMC exists, get CSD too */
+ resp = mv_mmc_cmd(MMC_CMD_SET_RCA, 0, 0, SDIO_CMD_RSP_48,
SDIO_NOR_CMD_DONE );
+ if (resp == NULL) {
+ pr_debug ("set rca fails\n");
+
+ return -ENODEV;
+ }
+ pr_debug("cmd3 resp : 0x%08x 0x%08x 0x%08x 0x%08x\n",
+ (unsigned int)resp[0], (unsigned int)resp[1], (unsigned int)resp[2],
(unsigned int)resp[3]);
+
+
+ if (is_sd)
+ rca = resp[0] >> 16;
+ else
+ rca = 0;
+
+ resp = mv_mmc_cmd(MMC_CMD_SEND_CSD, rca<<16, 0,
SDIO_CMD_RSP_136,SDIO_NOR_CMD_DONE );
+ pr_debug("cmd 9 resp : %08x %08x %08x %08x\n",
+ (unsigned int)resp[0], (unsigned int)resp[1], (unsigned int)resp[2],
(unsigned int)resp[3] );
+
+ if (resp == NULL) {
+ pr_debug ("read csd fails\n");
+
+ return -ENODEV;
+ }
+
+ memcpy(&mv_mmc_csd, (mv_mmc_csd_t *) resp, sizeof(mv_mmc_csd_t));
+ rc = 0;
+ mmc_ready = 1;
+
+ /* FIXME add verbose printout for csd */
+ pr_debug ("size = %u\n", mv_mmc_size(&mv_mmc_csd));
+
+
+ resp = mv_mmc_cmd(7, rca<<16, 0, SDIO_CMD_RSP_48BUSY,
SDIO_NOR_CMD_DONE);
+ if (resp == NULL) {
+ pr_debug ("select card fails\n");
+
+ return -ENODEV;
+ }
+ pr_debug("cmd 7 resp : %08x %08x %08x %08x\n",
+ (unsigned int)resp[0], (unsigned int)resp[1], (unsigned int)resp[2],
(unsigned int)resp[3] );
+
+
+ if (is_sd) {
+ resp = mv_mmc_cmd(55, rca<<16, 0, SDIO_CMD_RSP_48,
SDIO_NOR_CMD_DONE );
+ if (resp == NULL) {
+ pr_debug ("cmd55 fails\n");
+
+ return -ENODEV;
+ }
+ pr_debug("cmd55 resp : 0x%08x 0x%08x 0x%08x 0x%08x\n",
+ (unsigned int)resp[0], (unsigned int)resp[1], (unsigned
int)resp[2],
(unsigned int)resp[3]);
+
+
+ resp = mv_mmc_cmd(6, (rca<<16) | 0x2 , 0, SDIO_CMD_RSP_48,
SDIO_NOR_CMD_DONE );
+ if (resp == NULL) {
+ pr_debug ("cmd55 fails\n");
+
+ return -ENODEV;
+ }
+ pr_debug("cmd6 resp : 0x%08x 0x%08x 0x%08x 0x%08x\n",
+ (unsigned int)resp[0], (unsigned int)resp[1], (unsigned int)resp[2],
(unsigned int)resp[3]);
+
+ }
+
+ resp = (ulong *) &mv_mmc_csd;
+ pr_debug("csd: 0x%08x 0x%08x 0x%08x 0x%08x\n",
+ (unsigned int)resp[0], (unsigned int)resp[1], (unsigned int)resp[2],
(unsigned int)resp[3]);
+
+
+ /* check SDHC */
+ if ((resp[0]&0xf0000000)==0x40000000)
+ is_sdhc = 1;
+
+ /* set block len */
+ resp = mv_mmc_cmd(MMC_CMD_SET_BLOCKLEN, MMC_BLOCK_SIZE, 0,
SDIO_CMD_RSP_48, SDIO_NOR_CMD_DONE );
+ if (!resp) {
+ pr_debug("mv_mmc_block_read: set blk len fails\n");
+ return -ENODEV;
+ }
+
+ if (verbose) {
+ if (is_sd)
+ print_sd_cid((mv_sd_cid_t *) cidbuf);
+ else
+ print_mmc_cid((mv_mmc_cid_t *) cidbuf);
+ }
+
+ mvsdio_set_clock(CONFIG_SYS_MMC_CLK_PP);
+
+ fat_register_device(&mmc_dev,1); /* partitions start counting with 1 */
+
+ return 0;
+}
+
+#endif /* CONFIG_MMC */
diff --git a/drivers/mmc/mv_sdio.h b/drivers/mmc/mv_sdio.h
new file mode 100644
index 0000000..3383c3d
--- /dev/null
+++ b/drivers/mmc/mv_sdio.h
@@ -0,0 +1,313 @@
+/*
+ * (C) Copyright 2009
+ * Marvell Semiconductor <www.marvell.com>
+ * Written-by: Gérald Kerma <gera...@gmail.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., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+#ifndef _MVSDIO_INCLUDE
+#define _MVSDIO_INCLUDE
+
+//#define SDIO_REG(x) (MV_SDIO_BASE + (x))
+
+#define MVSDMMC_DMA_SIZE 65536
+#define MVSDMMC_CMD_TIMEOUT 2 /* 100 usec*/
+
+/*
+ * Clock rates
+ */
+
+#define MVSD_CLOCKRATE_MAX 50000000
+#define MVSD_BASE_DIV_MAX 0x7ff
+
+#define CONFIG_SYS_MMC_CLK_PP 25000000
+
+/*
+ * The base MMC clock rate
+ */
+
+#define MVSDMMC_CLOCKRATE_MIN 100000
+#define MVSDMMC_CLOCKRATE_MAX MVSD_CLOCKRATE_MAX
+#define MVSDMMC_BASE_FAST_CLOCK CONFIG_SYS_TCLK
+
+
+/*
+ * SDIO register
+ */
+#ifndef __ASSEMBLY__
+
+/*
+ * Structure for struct SoC access.
+ * Names starting with '_' are fillers.
+ */
+typedef struct mv_sdio {
+ /* reg Offset */
+ u32 SYS_ADDR_LOW; /* 0x00 */
+ u32 SYS_ADDR_HI; /* 0x04 */
+ u32 BLK_SIZE; /* 0x08 */
+ u32 BLK_COUNT; /* 0x0c */
+ u32 ARG_LOW; /* 0x10 */
+ u32 ARG_HI; /* 0x14 */
+ u32 XFER_MODE; /* 0x18 */
+ u32 CMD; /* 0x1c */
+ u32 RSP0; /* 0x20 */
+ u32 RSP1; /* 0x24 */
+ u32 RSP2; /* 0x28 */
+ u32 RSP3; /* 0x2c */
+ u32 RSP4; /* 0x30 */
+ u32 RSP5; /* 0x34 */
+ u32 RSP6; /* 0x38 */
+ u32 RSP7; /* 0x3c */
+ u32 BUF_DATA_PORT; /* 0x40 */
+ u32 RSVED; /* 0x44 */
+ u32 PRESENT_STATE0; /* 0x48 */
+ u32 PRESENT_STATE1; /* 0x4c */
+ u32 HOST_CTRL; /* 0x50 */
+ u32 BLK_GAP_CTRL; /* 0x54 */
+ u32 CLK_CTRL; /* 0x58 */
+ u32 SW_RESET; /* 0x5c */
+ u32 NOR_INTR_STATUS; /* 0x60 */
+ u32 ERR_INTR_STATUS; /* 0x64 */
+ u32 NOR_STATUS_EN; /* 0x68 */
+ u32 ERR_STATUS_EN; /* 0x6c */
+ u32 NOR_INTR_EN; /* 0x70 */
+ u32 ERR_INTR_EN; /* 0x74 */
+ u32 AUTOCMD12_ERR_STATUS; /* 0x78 */
+ u32 CURR_BYTE_LEFT; /* 0x7c */
+ u32 CURR_BLK_LEFT; /* 0x80 */
+ u32 AUTOCMD12_ARG_LOW; /* 0x84 */
+ u32 AUTOCMD12_ARG_HI; /* 0x88 */
+ u32 AUTOCMD12_INDEX; /* 0x8c */
+ u32 AUTO_RSP0; /* 0x90 */
+ u32 AUTO_RSP1; /* 0x94 */
+ u32 AUTO_RSP2; /* 0x98 */
+ u32 _9c; /* 0x9c */
+ u32 _a0[0x78]; /* 0xa0 */
+ u32 CLK_DIV; /* 0x128 */
+
+} mv_sdio_t;
+
+#endif /* __ASSEMBLY__ */
+
+/*
+ * 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)
+
+
+/*
+ * 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)
+
+
+/*
+ * 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_ID_MODE_LOW_FREQ (1 << 5)
+#define SDIO_HOST_CTRL_HALF_SPEED (1 << 6)
+#define SDIO_HOST_CTRL_DATA_WIDTH_4_BITS (1 << 9)
+#define SDIO_HOST_CTRL_HI_SPEED_EN (1 << 10)
+
+
+#define SDIO_HOST_CTRL_TMOUT_MASK (0xf << 11)
+#define SDIO_HOST_CTRL_TMOUT_MAX (0xf << 11)
+#define SDIO_HOST_CTRL_TMOUT(x) ((x) << 11)
+#define SDIO_HOST_CTRL_TMOUT_EN (1 << 15)
+
+#define SDIO_HOST_CTRL_DFAULT_OPEN_DRAIN \
+ (SDIO_HOST_CTRL_TMOUT(x)(0xf))
+#define SDIO_HOST_CTRL_DFAULT_PUSH_PULL \
+ (SDIO_HOST_CTRL_TMOUT(x)(0xf) | SDIO_HOST_CTRL_PUSH_PULL_EN)
+
+
+/*
+ * NOR 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)
+
+
+/*
+ * ERR 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_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_ERR_INTR_MASK 0xFFFF
+
+
+#define MMC_BLOCK_SIZE 512
+#define MMC_CMD_RESET 0
+#define MMC_CMD_SEND_OP_COND 1
+#define MMC_CMD_ALL_SEND_CID 2
+#define MMC_CMD_SET_RCA 3
+#define MMC_CMD_SELECT_CARD 7
+#define MMC_CMD_SEND_CSD 9
+#define MMC_CMD_SEND_CID 10
+#define MMC_CMD_SEND_STATUS 13
+#define MMC_CMD_SET_BLOCKLEN 16
+#define MMC_CMD_READ_BLOCK 17
+#define MMC_CMD_RD_BLK_MULTI 18
+#define MMC_CMD_WRITE_BLOCK 24
+#define MMC_MAX_BLOCK_SIZE 512
+
+typedef struct mv_mmc_cid
+{
+ /* FIXME: BYTE_ORDER */
+ uchar year:4,
+ month:4;
+ uchar sn[3];
+ uchar fwrev:4,
+ hwrev:4;
+ uchar name[6];
+ uchar id[3];
+} mv_mmc_cid_t;
+
+typedef struct mv_mmc_csd
+{
+ uchar ecc:2,
+ file_format:2,
+ tmp_write_protect:1,
+ perm_write_protect:1,
+ copy:1,
+ file_format_grp:1;
+ uint64_t content_prot_app:1,
+ rsvd3:4,
+ write_bl_partial:1,
+ write_bl_len:4,
+ r2w_factor:3,
+ default_ecc:2,
+ wp_grp_enable:1,
+ wp_grp_size:5,
+ erase_grp_mult:5,
+ erase_grp_size:5,
+ c_size_mult1:3,
+ vdd_w_curr_max:3,
+ vdd_w_curr_min:3,
+ vdd_r_curr_max:3,
+ vdd_r_curr_min:3,
+ c_size:12,
+ rsvd2:2,
+ dsr_imp:1,
+ read_blk_misalign:1,
+ write_blk_misalign:1,
+ read_bl_partial:1;
+ ushort read_bl_len:4,
+ ccc:12;
+ uchar tran_speed;
+ uchar nsac;
+ uchar taac;
+ uchar rsvd1:2,
+ spec_vers:4,
+ csd_structure:2;
+} mv_mmc_csd_t;
+
+typedef struct {
+ char pnm_0; /* product name */
+ char oid_1; /* OEM/application ID */
+ char oid_0;
+ uint8_t mid; /* manufacturer ID */
+ char pnm_4;
+ char pnm_3;
+ char pnm_2;
+ char pnm_1;
+ uint8_t psn_2; /* product serial number */
+ uint8_t psn_1;
+ uint8_t psn_0; /* MSB */
+ uint8_t prv; /* product revision */
+ uint8_t crc; /* CRC7 checksum, b0 is unused and set to 1 */
+ uint8_t mdt_1; /* manufacturing date, LSB, RRRRyyyy yyyymmmm */
+ uint8_t mdt_0; /* MSB */
+ uint8_t psn_3; /* LSB */
+} mv_sd_cid_t;
+
+#endif /* _MVSDIO_INCLUDE */
--
1.7.1
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