Patchwork [U-Boot,2/2] mmc: pxa: Remove the old non-generic PXA MMC driver

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Submitter Marek Vasut
Date Sept. 30, 2012, 8:09 p.m.
Message ID <1349035791-6959-2-git-send-email-marex@denx.de>
Download mbox | patch
Permalink /patch/188198/
State Accepted, archived
Delegated to: Andy Fleming
Headers show

Comments

Marek Vasut - Sept. 30, 2012, 8:09 p.m.
This driver is no longer used and it's remaining users were converted
to the new generic PXA MMC driver. Thus, remove this driver.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Andy Fleming <afleming@freescale.com>
---
 drivers/mmc/Makefile  |    1 -
 drivers/mmc/pxa_mmc.c |  643 -------------------------------------------------
 2 files changed, 644 deletions(-)
 delete mode 100644 drivers/mmc/pxa_mmc.c

Patch

diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile
index 565ba6a..ac3cb0b 100644
--- a/drivers/mmc/Makefile
+++ b/drivers/mmc/Makefile
@@ -41,7 +41,6 @@  COBJS-$(CONFIG_MV_SDHCI) += mv_sdhci.o
 COBJS-$(CONFIG_MXC_MMC) += mxcmmc.o
 COBJS-$(CONFIG_MXS_MMC) += mxsmmc.o
 COBJS-$(CONFIG_OMAP_HSMMC) += omap_hsmmc.o
-COBJS-$(CONFIG_PXA_MMC) += pxa_mmc.o
 COBJS-$(CONFIG_PXA_MMC_GENERIC) += pxa_mmc_gen.o
 COBJS-$(CONFIG_SDHCI) += sdhci.o
 COBJS-$(CONFIG_S5P_SDHCI) += s5p_sdhci.o
diff --git a/drivers/mmc/pxa_mmc.c b/drivers/mmc/pxa_mmc.c
deleted file mode 100644
index 80c4445..0000000
--- a/drivers/mmc/pxa_mmc.c
+++ /dev/null
@@ -1,643 +0,0 @@ 
-/*
- * (C) Copyright 2003
- * Kyle Harris, Nexus Technologies, Inc. kharris@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., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <config.h>
-#include <common.h>
-#include <mmc.h>
-#include <asm/errno.h>
-#include <asm/arch/hardware.h>
-#include <part.h>
-#include <asm/io.h>
-
-#include "pxa_mmc.h"
-
-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 uchar spec_ver;
-static int mmc_ready = 0;
-static int wide = 0;
-
-static uint32_t *
-/****************************************************/
-mmc_cmd(ushort cmd, ushort argh, ushort argl, ushort cmdat)
-/****************************************************/
-{
-	static uint32_t resp[4], a, b, c;
-	uint32_t status;
-	int i;
-
-	debug("mmc_cmd %u 0x%04x 0x%04x 0x%04x\n", cmd, argh, argl,
-	      cmdat | wide);
-	writel(MMC_STRPCL_STOP_CLK, MMC_STRPCL);
-	writel(~MMC_I_MASK_CLK_IS_OFF, MMC_I_MASK);
-	while (!(readl(MMC_I_REG) & MMC_I_REG_CLK_IS_OFF))
-		;
-	writel(cmd, MMC_CMD);
-	writel(argh, MMC_ARGH);
-	writel(argl, MMC_ARGL);
-	writel(cmdat | wide, MMC_CMDAT);
-	writel(~MMC_I_MASK_END_CMD_RES, MMC_I_MASK);
-	writel(MMC_STRPCL_START_CLK, MMC_STRPCL);
-	while (!(readl(MMC_I_REG) & MMC_I_REG_END_CMD_RES))
-		;
-
-	status = readl(MMC_STAT);
-	debug("MMC status 0x%08x\n", status);
-	if (status & MMC_STAT_TIME_OUT_RESPONSE) {
-		return 0;
-	}
-
-	/* Linux says:
-	 * Did I mention this is Sick.  We always need to
-	 * discard the upper 8 bits of the first 16-bit word.
-	 */
-	a = (readl(MMC_RES) & 0xffff);
-	for (i = 0; i < 4; i++) {
-		b = (readl(MMC_RES) & 0xffff);
-		c = (readl(MMC_RES) & 0xffff);
-		resp[i] = (a << 24) | (b << 8) | (c >> 8);
-		a = c;
-		debug("MMC resp[%d] = %#08x\n", i, resp[i]);
-	}
-
-	return resp;
-}
-
-int
-/****************************************************/
-mmc_block_read(uchar * dst, uint32_t src, int len)
-/****************************************************/
-{
-	ushort argh, argl;
-	ulong status;
-
-	if (len == 0) {
-		return 0;
-	}
-
-	debug("mmc_block_rd dst %p src %08x len %d\n", dst, src, len);
-
-	argh = len >> 16;
-	argl = len & 0xffff;
-
-	/* set block len */
-	mmc_cmd(MMC_CMD_SET_BLOCKLEN, argh, argl, MMC_CMDAT_R1);
-
-	/* send read command */
-	argh = src >> 16;
-	argl = src & 0xffff;
-	writel(MMC_STRPCL_STOP_CLK, MMC_STRPCL);
-	writel(0xffff, MMC_RDTO);
-	writel(1, MMC_NOB);
-	writel(len, MMC_BLKLEN);
-	mmc_cmd(MMC_CMD_READ_SINGLE_BLOCK, argh, argl,
-		MMC_CMDAT_R1 | MMC_CMDAT_READ | MMC_CMDAT_BLOCK |
-		MMC_CMDAT_DATA_EN);
-
-	writel(~MMC_I_MASK_RXFIFO_RD_REQ, MMC_I_MASK);
-	while (len) {
-		if (readl(MMC_I_REG) & MMC_I_REG_RXFIFO_RD_REQ) {
-#if defined(CONFIG_CPU_PXA27X) || defined(CONFIG_CPU_MONAHANS)
-			int i;
-			for (i = min(len, 32); i; i--) {
-				*dst++ = readb(MMC_RXFIFO);
-				len--;
-			}
-#else
-			*dst++ = readb(MMC_RXFIFO);
-			len--;
-#endif
-		}
-		status = readl(MMC_STAT);
-		if (status & MMC_STAT_ERRORS) {
-			printf("MMC_STAT error %lx\n", status);
-			return -1;
-		}
-	}
-	writel(~MMC_I_MASK_DATA_TRAN_DONE, MMC_I_MASK);
-	while (!(readl(MMC_I_REG) & MMC_I_REG_DATA_TRAN_DONE))
-		;
-	status = readl(MMC_STAT);
-	if (status & MMC_STAT_ERRORS) {
-		printf("MMC_STAT error %lx\n", status);
-		return -1;
-	}
-	return 0;
-}
-
-int
-/****************************************************/
-mmc_block_write(ulong dst, uchar * src, int len)
-/****************************************************/
-{
-	ushort argh, argl;
-	ulong status;
-
-	if (len == 0) {
-		return 0;
-	}
-
-	debug("mmc_block_wr dst %lx src %lx len %d\n", dst, (ulong) src, len);
-
-	argh = len >> 16;
-	argl = len & 0xffff;
-
-	/* set block len */
-	mmc_cmd(MMC_CMD_SET_BLOCKLEN, argh, argl, MMC_CMDAT_R1);
-
-	/* send write command */
-	argh = dst >> 16;
-	argl = dst & 0xffff;
-	writel(MMC_STRPCL_STOP_CLK, MMC_STRPCL);
-	writel(1, MMC_NOB);
-	writel(len, MMC_BLKLEN);
-	mmc_cmd(MMC_CMD_WRITE_SINGLE_BLOCK, argh, argl,
-		MMC_CMDAT_R1 | MMC_CMDAT_WRITE | MMC_CMDAT_BLOCK |
-		MMC_CMDAT_DATA_EN);
-
-	writel(~MMC_I_MASK_TXFIFO_WR_REQ, MMC_I_MASK);
-	while (len) {
-		if (readl(MMC_I_REG) & MMC_I_REG_TXFIFO_WR_REQ) {
-			int i, bytes = min(32, len);
-
-			for (i = 0; i < bytes; i++) {
-				writel(*src++, MMC_TXFIFO);
-			}
-			if (bytes < 32) {
-				writel(MMC_PRTBUF_BUF_PART_FULL, MMC_PRTBUF);
-			}
-			len -= bytes;
-		}
-		status = readl(MMC_STAT);
-		if (status & MMC_STAT_ERRORS) {
-			printf("MMC_STAT error %lx\n", status);
-			return -1;
-		}
-	}
-	writel(~MMC_I_MASK_DATA_TRAN_DONE, MMC_I_MASK);
-	while (!(readl(MMC_I_REG) & MMC_I_REG_DATA_TRAN_DONE))
-		;
-	writel(~MMC_I_MASK_PRG_DONE, MMC_I_MASK);
-	while (!(readl(MMC_I_REG) & MMC_I_REG_PRG_DONE))
-		;
-	status = readl(MMC_STAT);
-	if (status & MMC_STAT_ERRORS) {
-		printf("MMC_STAT error %lx\n", status);
-		return -1;
-	}
-	return 0;
-}
-
-int
-/****************************************************/
-pxa_mmc_read(long 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);
-
-	src -= CONFIG_SYS_MMC_BASE;
-	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 */
-	debug
-	    ("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n",
-	     src, (ulong) dst, end, part_start, part_end, aligned_start,
-	     aligned_end);
-	if (part_start) {
-		part_len = mmc_block_size - part_start;
-		debug
-		    ("ps src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n",
-		     src, (ulong) dst, end, part_start, part_end, aligned_start,
-		     aligned_end);
-		if ((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;
-	}
-	debug
-	    ("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n",
-	     src, (ulong) dst, end, part_start, part_end, aligned_start,
-	     aligned_end);
-	for (; src < aligned_end; src += mmc_block_size, dst += mmc_block_size) {
-		debug
-		    ("al src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n",
-		     src, (ulong) dst, end, part_start, part_end, aligned_start,
-		     aligned_end);
-		if ((mmc_block_read((uchar *) (dst), src, mmc_block_size)) < 0) {
-			return -1;
-		}
-	}
-	debug
-	    ("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n",
-	     src, (ulong) dst, end, part_start, part_end, aligned_start,
-	     aligned_end);
-	if (part_end && src < end) {
-		debug
-		    ("pe src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n",
-		     src, (ulong) dst, end, part_start, part_end, aligned_start,
-		     aligned_end);
-		if ((mmc_block_read(mmc_buf, aligned_end, mmc_block_size)) < 0) {
-			return -1;
-		}
-		memcpy(dst, mmc_buf, part_end);
-	}
-	return 0;
-}
-
-int
-/****************************************************/
-pxa_mmc_write(uchar * src, uint32_t 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);
-
-	dst -= CONFIG_SYS_MMC_BASE;
-	end = dst + size;
-	part_start = ~mmc_block_address & dst;
-	part_end = ~mmc_block_address & end;
-	aligned_start = mmc_block_address & dst;
-	aligned_end = mmc_block_address & end;
-
-	/* all block aligned accesses */
-	debug
-	    ("src %p dst %08x end %lx pstart %lx pend %lx astart %lx aend %lx\n",
-	     src, dst, end, part_start, part_end, aligned_start,
-	     aligned_end);
-	if (part_start) {
-		part_len = mmc_block_size - part_start;
-		debug
-		    ("ps src %p dst %08x end %lx pstart %lx pend %lx astart %lx aend %lx\n",
-		     src, dst, end, part_start, part_end, aligned_start,
-		     aligned_end);
-		if ((mmc_block_read(mmc_buf, aligned_start, mmc_block_size)) <
-		    0) {
-			return -1;
-		}
-		memcpy(mmc_buf + part_start, src, part_len);
-		if ((mmc_block_write(aligned_start, mmc_buf, mmc_block_size)) <
-		    0) {
-			return -1;
-		}
-		dst += part_len;
-		src += part_len;
-	}
-	debug
-	    ("src %p dst %08x end %lx pstart %lx pend %lx astart %lx aend %lx\n",
-	     src, dst, end, part_start, part_end, aligned_start,
-	     aligned_end);
-	for (; dst < aligned_end; src += mmc_block_size, dst += mmc_block_size) {
-		debug
-		    ("al src %p dst %08x end %lx pstart %lx pend %lx astart %lx aend %lx\n",
-		     src, dst, end, part_start, part_end, aligned_start,
-		     aligned_end);
-		if ((mmc_block_write(dst, (uchar *) src, mmc_block_size)) < 0) {
-			return -1;
-		}
-	}
-	debug
-	    ("src %p dst %08x end %lx pstart %lx pend %lx astart %lx aend %lx\n",
-	     src, dst, end, part_start, part_end, aligned_start,
-	     aligned_end);
-	if (part_end && dst < end) {
-		debug
-		    ("pe src %p dst %08x end %lx pstart %lx pend %lx astart %lx aend %lx\n",
-		     src, dst, end, part_start, part_end, aligned_start,
-		     aligned_end);
-		if ((mmc_block_read(mmc_buf, aligned_end, mmc_block_size)) < 0) {
-			return -1;
-		}
-		memcpy(mmc_buf, src, part_end);
-		if ((mmc_block_write(aligned_end, mmc_buf, mmc_block_size)) < 0) {
-			return -1;
-		}
-	}
-	return 0;
-}
-
-static ulong
-/****************************************************/
-mmc_bread(int dev_num, ulong blknr, lbaint_t blkcnt, void *dst)
-/****************************************************/
-{
-	int mmc_block_size = MMC_BLOCK_SIZE;
-	ulong src = blknr * mmc_block_size + CONFIG_SYS_MMC_BASE;
-
-	pxa_mmc_read(src, (uchar *) dst, blkcnt * mmc_block_size);
-	return blkcnt;
-}
-
-#ifdef __GNUC__
-#define likely(x)       __builtin_expect(!!(x), 1)
-#define unlikely(x)     __builtin_expect(!!(x), 0)
-#else
-#define likely(x)	(x)
-#define unlikely(x)	(x)
-#endif
-
-#define UNSTUFF_BITS(resp,start,size)					\
-	({								\
-		const int __size = size;				\
-		const uint32_t __mask = (__size < 32 ? 1 << __size : 0) - 1;	\
-		const int32_t __off = 3 - ((start) / 32);			\
-		const int32_t __shft = (start) & 31;			\
-		uint32_t __res;						\
-									\
-		__res = resp[__off] >> __shft;				\
-		if (__size + __shft > 32)				\
-			__res |= resp[__off-1] << ((32 - __shft) % 32);	\
-		__res & __mask;						\
-	})
-
-/*
- * Given the decoded CSD structure, decode the raw CID to our CID structure.
- */
-static void mmc_decode_cid(uint32_t * resp)
-{
-	if (IF_TYPE_SD == mmc_dev.if_type) {
-		/*
-		 * SD doesn't currently have a version field so we will
-		 * have to assume we can parse this.
-		 */
-		sprintf((char *)mmc_dev.vendor,
-			"Man %02x OEM %c%c \"%c%c%c%c%c\" Date %02u/%04u",
-			UNSTUFF_BITS(resp, 120, 8), UNSTUFF_BITS(resp, 112, 8),
-			UNSTUFF_BITS(resp, 104, 8), UNSTUFF_BITS(resp, 96, 8),
-			UNSTUFF_BITS(resp, 88, 8), UNSTUFF_BITS(resp, 80, 8),
-			UNSTUFF_BITS(resp, 72, 8), UNSTUFF_BITS(resp, 64, 8),
-			UNSTUFF_BITS(resp, 8, 4), UNSTUFF_BITS(resp, 12,
-							       8) + 2000);
-		sprintf((char *)mmc_dev.revision, "%d.%d",
-			UNSTUFF_BITS(resp, 60, 4), UNSTUFF_BITS(resp, 56, 4));
-		sprintf((char *)mmc_dev.product, "%u",
-			UNSTUFF_BITS(resp, 24, 32));
-	} else {
-		/*
-		 * The selection of the format here is based upon published
-		 * specs from sandisk and from what people have reported.
-		 */
-		switch (spec_ver) {
-		case 0:	/* MMC v1.0 - v1.2 */
-		case 1:	/* MMC v1.4 */
-			sprintf((char *)mmc_dev.vendor,
-				"Man %02x%02x%02x \"%c%c%c%c%c%c%c\" Date %02u/%04u",
-				UNSTUFF_BITS(resp, 120, 8), UNSTUFF_BITS(resp,
-									 112,
-									 8),
-				UNSTUFF_BITS(resp, 104, 8), UNSTUFF_BITS(resp,
-									 96, 8),
-				UNSTUFF_BITS(resp, 88, 8), UNSTUFF_BITS(resp,
-									80, 8),
-				UNSTUFF_BITS(resp, 72, 8), UNSTUFF_BITS(resp,
-									64, 8),
-				UNSTUFF_BITS(resp, 56, 8), UNSTUFF_BITS(resp,
-									48, 8),
-				UNSTUFF_BITS(resp, 12, 4), UNSTUFF_BITS(resp, 8,
-									4) +
-				1997);
-			sprintf((char *)mmc_dev.revision, "%d.%d",
-				UNSTUFF_BITS(resp, 44, 4), UNSTUFF_BITS(resp,
-									40, 4));
-			sprintf((char *)mmc_dev.product, "%u",
-				UNSTUFF_BITS(resp, 16, 24));
-			break;
-
-		case 2:	/* MMC v2.0 - v2.2 */
-		case 3:	/* MMC v3.1 - v3.3 */
-		case 4:	/* MMC v4 */
-			sprintf((char *)mmc_dev.vendor,
-				"Man %02x OEM %04x \"%c%c%c%c%c%c\" Date %02u/%04u",
-				UNSTUFF_BITS(resp, 120, 8), UNSTUFF_BITS(resp,
-									 104,
-									 16),
-				UNSTUFF_BITS(resp, 96, 8), UNSTUFF_BITS(resp,
-									88, 8),
-				UNSTUFF_BITS(resp, 80, 8), UNSTUFF_BITS(resp,
-									72, 8),
-				UNSTUFF_BITS(resp, 64, 8), UNSTUFF_BITS(resp,
-									56, 8),
-				UNSTUFF_BITS(resp, 12, 4), UNSTUFF_BITS(resp, 8,
-									4) +
-				1997);
-			sprintf((char *)mmc_dev.product, "%u",
-				UNSTUFF_BITS(resp, 16, 32));
-			sprintf((char *)mmc_dev.revision, "N/A");
-			break;
-
-		default:
-			printf("MMC card has unknown MMCA version %d\n",
-			       spec_ver);
-			break;
-		}
-	}
-	printf("%s card.\nVendor: %s\nProduct: %s\nRevision: %s\n",
-	       (IF_TYPE_SD == mmc_dev.if_type) ? "SD" : "MMC", mmc_dev.vendor,
-	       mmc_dev.product, mmc_dev.revision);
-}
-
-/*
- * Given a 128-bit response, decode to our card CSD structure.
- */
-static void mmc_decode_csd(uint32_t * resp)
-{
-	unsigned int mult, csd_struct;
-
-	if (IF_TYPE_SD == mmc_dev.if_type) {
-		csd_struct = UNSTUFF_BITS(resp, 126, 2);
-		if (csd_struct != 0) {
-			printf("SD: unrecognised CSD structure version %d\n",
-			       csd_struct);
-			return;
-		}
-	} else {
-		/*
-		 * We only understand CSD structure v1.1 and v1.2.
-		 * v1.2 has extra information in bits 15, 11 and 10.
-		 */
-		csd_struct = UNSTUFF_BITS(resp, 126, 2);
-		if (csd_struct != 1 && csd_struct != 2) {
-			printf("MMC: unrecognised CSD structure version %d\n",
-			       csd_struct);
-			return;
-		}
-
-		spec_ver = UNSTUFF_BITS(resp, 122, 4);
-		mmc_dev.if_type = IF_TYPE_MMC;
-	}
-
-	mult = 1 << (UNSTUFF_BITS(resp, 47, 3) + 2);
-	mmc_dev.lba = (1 + UNSTUFF_BITS(resp, 62, 12)) * mult;
-	mmc_dev.blksz = 1 << UNSTUFF_BITS(resp, 80, 4);
-
-	/* FIXME: The following just makes assumes that's the partition type -- should really read it */
-	mmc_dev.part_type = PART_TYPE_DOS;
-	mmc_dev.dev = 0;
-	mmc_dev.lun = 0;
-	mmc_dev.type = DEV_TYPE_HARDDISK;
-	mmc_dev.removable = 0;
-	mmc_dev.block_read = mmc_bread;
-
-	printf("Detected: %lu blocks of %lu bytes (%luMB) ",
-		mmc_dev.lba,
-		mmc_dev.blksz,
-		mmc_dev.lba * mmc_dev.blksz / (1024 * 1024));
-}
-
-int
-/****************************************************/
-mmc_legacy_init(int verbose)
-/****************************************************/
-{
-	int retries, rc = -ENODEV;
-	uint32_t cid_resp[4];
-	uint32_t *resp;
-	uint16_t rca = 0;
-
-	/* Reset device interface type */
-	mmc_dev.if_type = IF_TYPE_UNKNOWN;
-
-#ifdef CONFIG_CPU_MONAHANS	/* pxa3xx */
-	writel(readl(CKENA) | CKENA_12_MMC0 | CKENA_13_MMC1, CKENA);
-#else	/* pxa2xx */
-	writel(readl(CKEN) | CKEN12_MMC, CKEN);	/* enable MMC unit clock */
-#endif
-	writel(MMC_CLKRT_0_3125MHZ, MMC_CLKRT);
-	writel(MMC_RES_TO_MAX, MMC_RESTO);
-	writel(MMC_SPI_DISABLE, MMC_SPI);
-
-	/* reset */
-	mmc_cmd(MMC_CMD_GO_IDLE_STATE, 0, 0, MMC_CMDAT_INIT | MMC_CMDAT_R0);
-	udelay(200000);
-	retries = 3;
-	while (retries--) {
-		resp = mmc_cmd(MMC_CMD_APP_CMD, 0, 0, MMC_CMDAT_R1);
-		if (!(resp[0] & 0x00000020)) {	/* Card does not support APP_CMD */
-			debug("Card does not support APP_CMD\n");
-			break;
-		}
-
-		/* Select 3.2-3.3V and 3.3-3.4V */
-		resp = mmc_cmd(SD_CMD_APP_SEND_OP_COND, 0x0030, 0x0000,
-				MMC_CMDAT_R3 | (retries < 2 ? 0
-					: MMC_CMDAT_INIT));
-		if (resp[0] & 0x80000000) {
-			mmc_dev.if_type = IF_TYPE_SD;
-			debug("Detected SD card\n");
-			break;
-		}
-		udelay(200000);
-	}
-
-	if (retries <= 0 || !(IF_TYPE_SD == mmc_dev.if_type)) {
-		debug("Failed to detect SD Card, trying MMC\n");
-		resp =
-		    mmc_cmd(MMC_CMD_SEND_OP_COND, 0x00ff, 0x8000, MMC_CMDAT_R3);
-
-		retries = 10;
-		while (retries-- && resp && !(resp[0] & 0x80000000)) {
-			udelay(200000);
-			resp =
-			    mmc_cmd(MMC_CMD_SEND_OP_COND, 0x00ff, 0x8000,
-				    MMC_CMDAT_R3);
-		}
-	}
-
-	/* try to get card id */
-	resp =
-	    mmc_cmd(MMC_CMD_ALL_SEND_CID, 0, 0, MMC_CMDAT_R2 | MMC_CMDAT_BUSY);
-	if (resp) {
-		memcpy(cid_resp, resp, sizeof(cid_resp));
-
-		/* MMC exists, get CSD too */
-		resp = mmc_cmd(MMC_CMD_SET_RELATIVE_ADDR, 0, 0, MMC_CMDAT_R1);
-		if (IF_TYPE_SD == mmc_dev.if_type)
-			rca = ((resp[0] & 0xffff0000) >> 16);
-		resp = mmc_cmd(MMC_CMD_SEND_CSD, rca, 0, MMC_CMDAT_R2);
-		if (resp) {
-			mmc_decode_csd(resp);
-			rc = 0;
-			mmc_ready = 1;
-		}
-
-		mmc_decode_cid(cid_resp);
-	}
-
-	writel(0, MMC_CLKRT);		/* 20 MHz */
-	resp = mmc_cmd(MMC_CMD_SELECT_CARD, rca, 0, MMC_CMDAT_R1);
-
-#if defined(CONFIG_CPU_PXA27X) || defined(CONFIG_CPU_MONAHANS)
-	if (IF_TYPE_SD == mmc_dev.if_type) {
-		resp = mmc_cmd(MMC_CMD_APP_CMD, rca, 0, MMC_CMDAT_R1);
-		resp = mmc_cmd(SD_CMD_APP_SET_BUS_WIDTH, 0, 2, MMC_CMDAT_R1);
-		wide = MMC_CMDAT_SD_4DAT;
-	}
-#endif
-
-	fat_register_device(&mmc_dev, 1);	/* partitions start counting with 1 */
-
-	return rc;
-}