mmc: pxa: Remove the old non-generic PXA MMC driver
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> Signed-off-by: Andy Fleming <afleming@freescale.com>
This commit is contained in:
Marek Vasut
Andy Fleming
parent
831f849f79
commit
48cf9dc63c
@ -41,7 +41,6 @@ COBJS-$(CONFIG_MV_SDHCI) += mv_sdhci.o
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COBJS-$(CONFIG_MXC_MMC) += mxcmmc.o
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COBJS-$(CONFIG_MXS_MMC) += mxsmmc.o
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COBJS-$(CONFIG_OMAP_HSMMC) += omap_hsmmc.o
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COBJS-$(CONFIG_PXA_MMC) += pxa_mmc.o
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COBJS-$(CONFIG_PXA_MMC_GENERIC) += pxa_mmc_gen.o
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COBJS-$(CONFIG_SDHCI) += sdhci.o
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COBJS-$(CONFIG_S5P_SDHCI) += s5p_sdhci.o
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@ -1,643 +0,0 @@
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/*
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* (C) Copyright 2003
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* Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <config.h>
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#include <common.h>
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#include <mmc.h>
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#include <asm/errno.h>
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#include <asm/arch/hardware.h>
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#include <part.h>
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#include <asm/io.h>
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#include "pxa_mmc.h"
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extern int fat_register_device(block_dev_desc_t * dev_desc, int part_no);
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static block_dev_desc_t mmc_dev;
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block_dev_desc_t *mmc_get_dev(int dev)
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{
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return ((block_dev_desc_t *) & mmc_dev);
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}
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/*
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* FIXME needs to read cid and csd info to determine block size
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* and other parameters
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*/
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static uchar mmc_buf[MMC_BLOCK_SIZE];
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static uchar spec_ver;
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static int mmc_ready = 0;
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static int wide = 0;
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static uint32_t *
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/****************************************************/
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mmc_cmd(ushort cmd, ushort argh, ushort argl, ushort cmdat)
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/****************************************************/
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{
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static uint32_t resp[4], a, b, c;
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uint32_t status;
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int i;
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debug("mmc_cmd %u 0x%04x 0x%04x 0x%04x\n", cmd, argh, argl,
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cmdat | wide);
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writel(MMC_STRPCL_STOP_CLK, MMC_STRPCL);
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writel(~MMC_I_MASK_CLK_IS_OFF, MMC_I_MASK);
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while (!(readl(MMC_I_REG) & MMC_I_REG_CLK_IS_OFF))
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;
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writel(cmd, MMC_CMD);
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writel(argh, MMC_ARGH);
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writel(argl, MMC_ARGL);
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writel(cmdat | wide, MMC_CMDAT);
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writel(~MMC_I_MASK_END_CMD_RES, MMC_I_MASK);
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writel(MMC_STRPCL_START_CLK, MMC_STRPCL);
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while (!(readl(MMC_I_REG) & MMC_I_REG_END_CMD_RES))
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;
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status = readl(MMC_STAT);
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debug("MMC status 0x%08x\n", status);
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if (status & MMC_STAT_TIME_OUT_RESPONSE) {
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return 0;
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}
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/* Linux says:
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* Did I mention this is Sick. We always need to
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* discard the upper 8 bits of the first 16-bit word.
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*/
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a = (readl(MMC_RES) & 0xffff);
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for (i = 0; i < 4; i++) {
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b = (readl(MMC_RES) & 0xffff);
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c = (readl(MMC_RES) & 0xffff);
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resp[i] = (a << 24) | (b << 8) | (c >> 8);
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a = c;
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debug("MMC resp[%d] = %#08x\n", i, resp[i]);
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}
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return resp;
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}
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int
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/****************************************************/
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mmc_block_read(uchar * dst, uint32_t src, int len)
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/****************************************************/
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{
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ushort argh, argl;
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ulong status;
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if (len == 0) {
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return 0;
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}
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debug("mmc_block_rd dst %p src %08x len %d\n", dst, src, len);
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argh = len >> 16;
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argl = len & 0xffff;
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/* set block len */
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mmc_cmd(MMC_CMD_SET_BLOCKLEN, argh, argl, MMC_CMDAT_R1);
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/* send read command */
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argh = src >> 16;
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argl = src & 0xffff;
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writel(MMC_STRPCL_STOP_CLK, MMC_STRPCL);
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writel(0xffff, MMC_RDTO);
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writel(1, MMC_NOB);
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writel(len, MMC_BLKLEN);
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mmc_cmd(MMC_CMD_READ_SINGLE_BLOCK, argh, argl,
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MMC_CMDAT_R1 | MMC_CMDAT_READ | MMC_CMDAT_BLOCK |
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MMC_CMDAT_DATA_EN);
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writel(~MMC_I_MASK_RXFIFO_RD_REQ, MMC_I_MASK);
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while (len) {
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if (readl(MMC_I_REG) & MMC_I_REG_RXFIFO_RD_REQ) {
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#if defined(CONFIG_CPU_PXA27X) || defined(CONFIG_CPU_MONAHANS)
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int i;
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for (i = min(len, 32); i; i--) {
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*dst++ = readb(MMC_RXFIFO);
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len--;
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}
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#else
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*dst++ = readb(MMC_RXFIFO);
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len--;
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#endif
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}
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status = readl(MMC_STAT);
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if (status & MMC_STAT_ERRORS) {
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printf("MMC_STAT error %lx\n", status);
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return -1;
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}
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}
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writel(~MMC_I_MASK_DATA_TRAN_DONE, MMC_I_MASK);
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while (!(readl(MMC_I_REG) & MMC_I_REG_DATA_TRAN_DONE))
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;
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status = readl(MMC_STAT);
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if (status & MMC_STAT_ERRORS) {
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printf("MMC_STAT error %lx\n", status);
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return -1;
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}
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return 0;
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}
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int
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/****************************************************/
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mmc_block_write(ulong dst, uchar * src, int len)
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/****************************************************/
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{
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ushort argh, argl;
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ulong status;
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if (len == 0) {
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return 0;
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}
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debug("mmc_block_wr dst %lx src %lx len %d\n", dst, (ulong) src, len);
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argh = len >> 16;
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argl = len & 0xffff;
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/* set block len */
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mmc_cmd(MMC_CMD_SET_BLOCKLEN, argh, argl, MMC_CMDAT_R1);
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/* send write command */
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argh = dst >> 16;
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argl = dst & 0xffff;
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writel(MMC_STRPCL_STOP_CLK, MMC_STRPCL);
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writel(1, MMC_NOB);
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writel(len, MMC_BLKLEN);
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mmc_cmd(MMC_CMD_WRITE_SINGLE_BLOCK, argh, argl,
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MMC_CMDAT_R1 | MMC_CMDAT_WRITE | MMC_CMDAT_BLOCK |
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MMC_CMDAT_DATA_EN);
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writel(~MMC_I_MASK_TXFIFO_WR_REQ, MMC_I_MASK);
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while (len) {
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if (readl(MMC_I_REG) & MMC_I_REG_TXFIFO_WR_REQ) {
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int i, bytes = min(32, len);
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for (i = 0; i < bytes; i++) {
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writel(*src++, MMC_TXFIFO);
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}
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if (bytes < 32) {
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writel(MMC_PRTBUF_BUF_PART_FULL, MMC_PRTBUF);
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}
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len -= bytes;
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}
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status = readl(MMC_STAT);
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if (status & MMC_STAT_ERRORS) {
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printf("MMC_STAT error %lx\n", status);
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return -1;
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}
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}
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writel(~MMC_I_MASK_DATA_TRAN_DONE, MMC_I_MASK);
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while (!(readl(MMC_I_REG) & MMC_I_REG_DATA_TRAN_DONE))
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;
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writel(~MMC_I_MASK_PRG_DONE, MMC_I_MASK);
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while (!(readl(MMC_I_REG) & MMC_I_REG_PRG_DONE))
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;
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status = readl(MMC_STAT);
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if (status & MMC_STAT_ERRORS) {
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printf("MMC_STAT error %lx\n", status);
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return -1;
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}
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return 0;
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}
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int
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/****************************************************/
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pxa_mmc_read(long src, uchar * dst, int size)
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/****************************************************/
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{
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ulong end, part_start, part_end, part_len, aligned_start, aligned_end;
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ulong mmc_block_size, mmc_block_address;
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if (size == 0) {
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return 0;
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}
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if (!mmc_ready) {
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printf("Please initial the MMC first\n");
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return -1;
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}
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mmc_block_size = MMC_BLOCK_SIZE;
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mmc_block_address = ~(mmc_block_size - 1);
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src -= CONFIG_SYS_MMC_BASE;
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end = src + size;
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part_start = ~mmc_block_address & src;
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part_end = ~mmc_block_address & end;
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aligned_start = mmc_block_address & src;
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aligned_end = mmc_block_address & end;
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/* all block aligned accesses */
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debug
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("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n",
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src, (ulong) dst, end, part_start, part_end, aligned_start,
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aligned_end);
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if (part_start) {
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part_len = mmc_block_size - part_start;
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debug
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("ps src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n",
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src, (ulong) dst, end, part_start, part_end, aligned_start,
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aligned_end);
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if ((mmc_block_read(mmc_buf, aligned_start, mmc_block_size)) <
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0) {
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return -1;
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}
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memcpy(dst, mmc_buf + part_start, part_len);
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dst += part_len;
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src += part_len;
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}
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debug
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("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n",
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src, (ulong) dst, end, part_start, part_end, aligned_start,
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aligned_end);
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for (; src < aligned_end; src += mmc_block_size, dst += mmc_block_size) {
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debug
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("al src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n",
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src, (ulong) dst, end, part_start, part_end, aligned_start,
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aligned_end);
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if ((mmc_block_read((uchar *) (dst), src, mmc_block_size)) < 0) {
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return -1;
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}
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}
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debug
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("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n",
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src, (ulong) dst, end, part_start, part_end, aligned_start,
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aligned_end);
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if (part_end && src < end) {
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debug
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("pe src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n",
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src, (ulong) dst, end, part_start, part_end, aligned_start,
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aligned_end);
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if ((mmc_block_read(mmc_buf, aligned_end, mmc_block_size)) < 0) {
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return -1;
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}
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memcpy(dst, mmc_buf, part_end);
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}
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return 0;
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}
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int
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/****************************************************/
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pxa_mmc_write(uchar * src, uint32_t dst, int size)
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/****************************************************/
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{
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ulong end, part_start, part_end, part_len, aligned_start, aligned_end;
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ulong mmc_block_size, mmc_block_address;
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if (size == 0) {
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return 0;
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}
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if (!mmc_ready) {
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printf("Please initial the MMC first\n");
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return -1;
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}
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mmc_block_size = MMC_BLOCK_SIZE;
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mmc_block_address = ~(mmc_block_size - 1);
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dst -= CONFIG_SYS_MMC_BASE;
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end = dst + size;
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part_start = ~mmc_block_address & dst;
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part_end = ~mmc_block_address & end;
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aligned_start = mmc_block_address & dst;
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aligned_end = mmc_block_address & end;
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/* all block aligned accesses */
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debug
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("src %p dst %08x end %lx pstart %lx pend %lx astart %lx aend %lx\n",
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src, dst, end, part_start, part_end, aligned_start,
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aligned_end);
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if (part_start) {
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part_len = mmc_block_size - part_start;
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debug
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("ps src %p dst %08x end %lx pstart %lx pend %lx astart %lx aend %lx\n",
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src, dst, end, part_start, part_end, aligned_start,
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aligned_end);
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if ((mmc_block_read(mmc_buf, aligned_start, mmc_block_size)) <
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0) {
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return -1;
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}
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memcpy(mmc_buf + part_start, src, part_len);
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if ((mmc_block_write(aligned_start, mmc_buf, mmc_block_size)) <
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0) {
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return -1;
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}
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dst += part_len;
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src += part_len;
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}
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debug
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("src %p dst %08x end %lx pstart %lx pend %lx astart %lx aend %lx\n",
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src, dst, end, part_start, part_end, aligned_start,
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aligned_end);
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for (; dst < aligned_end; src += mmc_block_size, dst += mmc_block_size) {
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debug
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("al src %p dst %08x end %lx pstart %lx pend %lx astart %lx aend %lx\n",
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src, dst, end, part_start, part_end, aligned_start,
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aligned_end);
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if ((mmc_block_write(dst, (uchar *) src, mmc_block_size)) < 0) {
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return -1;
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}
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}
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debug
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("src %p dst %08x end %lx pstart %lx pend %lx astart %lx aend %lx\n",
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src, dst, end, part_start, part_end, aligned_start,
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aligned_end);
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if (part_end && dst < end) {
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debug
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("pe src %p dst %08x end %lx pstart %lx pend %lx astart %lx aend %lx\n",
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src, dst, end, part_start, part_end, aligned_start,
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aligned_end);
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if ((mmc_block_read(mmc_buf, aligned_end, mmc_block_size)) < 0) {
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return -1;
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}
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memcpy(mmc_buf, src, part_end);
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if ((mmc_block_write(aligned_end, mmc_buf, mmc_block_size)) < 0) {
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return -1;
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}
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}
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return 0;
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}
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static ulong
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/****************************************************/
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mmc_bread(int dev_num, ulong blknr, lbaint_t blkcnt, void *dst)
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/****************************************************/
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{
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int mmc_block_size = MMC_BLOCK_SIZE;
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ulong src = blknr * mmc_block_size + CONFIG_SYS_MMC_BASE;
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pxa_mmc_read(src, (uchar *) dst, blkcnt * mmc_block_size);
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return blkcnt;
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}
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#ifdef __GNUC__
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#define likely(x) __builtin_expect(!!(x), 1)
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#define unlikely(x) __builtin_expect(!!(x), 0)
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#else
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#define likely(x) (x)
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#define unlikely(x) (x)
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#endif
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#define UNSTUFF_BITS(resp,start,size) \
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({ \
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const int __size = size; \
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const uint32_t __mask = (__size < 32 ? 1 << __size : 0) - 1; \
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const int32_t __off = 3 - ((start) / 32); \
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const int32_t __shft = (start) & 31; \
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uint32_t __res; \
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\
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__res = resp[__off] >> __shft; \
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if (__size + __shft > 32) \
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__res |= resp[__off-1] << ((32 - __shft) % 32); \
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__res & __mask; \
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})
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/*
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* Given the decoded CSD structure, decode the raw CID to our CID structure.
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*/
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static void mmc_decode_cid(uint32_t * resp)
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{
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if (IF_TYPE_SD == mmc_dev.if_type) {
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/*
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* SD doesn't currently have a version field so we will
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* have to assume we can parse this.
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*/
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sprintf((char *)mmc_dev.vendor,
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"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;
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user