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change-drivers-dir.patch
Create ./src/drivers and move s3c24xx mmc thing in there with more specific name. Move fat.h into ./include Signed-off-by: Andy Green <andy@openmoko.com>
This commit is contained in:
Andy Green
Andy Green
540
qiboot/src/drivers/s3c24xx-mci.c
Normal file
540
qiboot/src/drivers/s3c24xx-mci.c
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@@ -0,0 +1,540 @@
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#if 0
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/*
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* u-boot S3C2410 MMC/SD card driver
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* (C) Copyright 2006 by OpenMoko, Inc.
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* Author: Harald Welte <laforge@openmoko.org>
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*
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* based on u-boot pxa MMC driver and linux/drivers/mmc/s3c2410mci.c
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* (C) 2005-2005 Thomas Kleffel
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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/io.h>
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#include <s3c2410.h>
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#include <part.h>
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#include <fat.h>
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#if defined(CONFIG_MMC) && defined(CONFIG_MMC_S3C)
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#define CONFIG_MMC_WIDE
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static S3C2410_SDI *sdi;
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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 mmc_csd_t mmc_csd;
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static int mmc_ready = 0;
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static int wide = 0;
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#define CMD_F_RESP 0x01
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#define CMD_F_RESP_LONG 0x02
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static u_int32_t *mmc_cmd(ushort cmd, ulong arg, ushort flags)
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{
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static u_int32_t resp[5];
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u_int32_t ccon, csta;
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u_int32_t csta_rdy_bit = S3C2410_SDICMDSTAT_CMDSENT;
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memset(resp, 0, sizeof(resp));
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debug("mmc_cmd CMD%d arg=0x%08x flags=%x\n", cmd, arg, flags);
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sdi->SDICSTA = 0xffffffff;
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sdi->SDIDSTA = 0xffffffff;
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sdi->SDIFSTA = 0xffffffff;
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sdi->SDICARG = arg;
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ccon = cmd & S3C2410_SDICMDCON_INDEX;
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ccon |= S3C2410_SDICMDCON_SENDERHOST|S3C2410_SDICMDCON_CMDSTART;
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if (flags & CMD_F_RESP) {
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ccon |= S3C2410_SDICMDCON_WAITRSP;
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csta_rdy_bit = S3C2410_SDICMDSTAT_RSPFIN; /* 1 << 9 */
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}
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if (flags & CMD_F_RESP_LONG)
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ccon |= S3C2410_SDICMDCON_LONGRSP;
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sdi->SDICCON = ccon;
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while (1) {
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csta = sdi->SDICSTA;
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if (csta & csta_rdy_bit)
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break;
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if (csta & S3C2410_SDICMDSTAT_CMDTIMEOUT) {
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printf("===============> MMC CMD Timeout\n");
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sdi->SDICSTA |= S3C2410_SDICMDSTAT_CMDTIMEOUT;
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break;
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}
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}
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debug("final MMC CMD status 0x%x\n", csta);
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sdi->SDICSTA |= csta_rdy_bit;
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if (flags & CMD_F_RESP) {
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resp[0] = sdi->SDIRSP0;
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resp[1] = sdi->SDIRSP1;
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resp[2] = sdi->SDIRSP2;
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resp[3] = sdi->SDIRSP3;
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}
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return resp;
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}
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#define FIFO_FILL(host) ((host->SDIFSTA & S3C2410_SDIFSTA_COUNTMASK) >> 2)
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static int mmc_block_read(uchar *dst, ulong src, ulong len)
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{
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u_int32_t dcon, fifo;
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u_int32_t *dst_u32 = (u_int32_t *)dst;
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u_int32_t *resp;
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if (len == 0)
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return 0;
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debug("mmc_block_rd dst %lx src %lx len %d\n", (ulong)dst, src, len);
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/* set block len */
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resp = mmc_cmd(MMC_CMD_SET_BLOCKLEN, len, CMD_F_RESP);
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sdi->SDIBSIZE = len;
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//sdi->SDIPRE = 0xff;
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/* setup data */
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dcon = (len >> 9) & S3C2410_SDIDCON_BLKNUM;
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dcon |= S3C2410_SDIDCON_BLOCKMODE;
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dcon |= S3C2410_SDIDCON_RXAFTERCMD|S3C2410_SDIDCON_XFER_RXSTART;
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if (wide)
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dcon |= S3C2410_SDIDCON_WIDEBUS;
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#if defined(CONFIG_S3C2440) || defined(CONFIG_S3C2442)
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dcon |= S3C2440_SDIDCON_DS_WORD | S3C2440_SDIDCON_DATSTART;
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#endif
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sdi->SDIDCON = dcon;
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/* send read command */
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resp = mmc_cmd(MMC_CMD_READ_BLOCK, src, CMD_F_RESP);
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while (len > 0) {
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u_int32_t sdidsta = sdi->SDIDSTA;
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fifo = FIFO_FILL(sdi);
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if (sdidsta & (S3C2410_SDIDSTA_FIFOFAIL|
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S3C2410_SDIDSTA_CRCFAIL|
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S3C2410_SDIDSTA_RXCRCFAIL|
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S3C2410_SDIDSTA_DATATIMEOUT)) {
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printf("mmc_block_read: err SDIDSTA=0x%08x\n", sdidsta);
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return -EIO;
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}
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while (fifo--) {
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//debug("dst_u32 = 0x%08x\n", dst_u32);
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*(dst_u32++) = sdi->SDIDAT;
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if (len >= 4)
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len -= 4;
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else {
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len = 0;
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break;
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}
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}
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}
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debug("waiting for SDIDSTA (currently 0x%08x\n", sdi->SDIDSTA);
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while (!(sdi->SDIDSTA & (1 << 4))) {}
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debug("done waiting for SDIDSTA (currently 0x%08x\n", sdi->SDIDSTA);
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sdi->SDIDCON = 0;
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if (!(sdi->SDIDSTA & S3C2410_SDIDSTA_XFERFINISH))
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debug("mmc_block_read; transfer not finished!\n");
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return 0;
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}
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static int mmc_block_write(ulong dst, uchar *src, int len)
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{
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printf("MMC block write not yet supported on S3C2410!\n");
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return -1;
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}
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int mmc_read(ulong src, uchar *dst, int size)
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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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if (!mmc_ready) {
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printf("Please initialize 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 -= CFG_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("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, 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("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, aligned_end);
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if ((mmc_block_read(mmc_buf, aligned_start, mmc_block_size)) < 0)
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return -1;
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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("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, aligned_end);
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for (; src < aligned_end; src += mmc_block_size, dst += mmc_block_size) {
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debug("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, 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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debug("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, aligned_end);
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if (part_end && src < end) {
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debug("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, 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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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 mmc_write(uchar *src, ulong dst, int size)
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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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if (!mmc_ready) {
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printf("Please initialize 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 -= CFG_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("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, 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("ps src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n",
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(ulong)src, dst, end, part_start, part_end, aligned_start, aligned_end);
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if ((mmc_block_read(mmc_buf, aligned_start, mmc_block_size)) < 0)
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return -1;
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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)) < 0)
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return -1;
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dst += part_len;
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src += part_len;
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}
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debug("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, aligned_end);
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for (; dst < aligned_end; src += mmc_block_size, dst += mmc_block_size) {
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debug("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, 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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debug("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, aligned_end);
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if (part_end && dst < end) {
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debug("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, 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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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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return 0;
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}
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ulong mmc_bread(int dev_num, ulong blknr, ulong blkcnt, void *dst)
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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 + CFG_MMC_BASE;
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mmc_read(src, dst, blkcnt*mmc_block_size);
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return blkcnt;
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}
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/* MMC_DEFAULT_RCA should probably be just 1, but this may break other code
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that expects it to be shifted. */
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static u_int16_t rca = MMC_DEFAULT_RCA >> 16;
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static u_int32_t mmc_size(const struct mmc_csd *csd)
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{
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u_int32_t block_len, mult, blocknr;
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block_len = csd->read_bl_len << 12;
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mult = csd->c_size_mult1 << 8;
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blocknr = (csd->c_size+1) * mult;
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return blocknr * block_len;
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}
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struct sd_cid {
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char pnm_0; /* product name */
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char oid_1; /* OEM/application ID */
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char oid_0;
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uint8_t mid; /* manufacturer ID */
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char pnm_4;
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char pnm_3;
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char pnm_2;
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char pnm_1;
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uint8_t psn_2; /* product serial number */
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uint8_t psn_1;
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uint8_t psn_0; /* MSB */
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uint8_t prv; /* product revision */
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uint8_t crc; /* CRC7 checksum, b0 is unused and set to 1 */
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uint8_t mdt_1; /* manufacturing date, LSB, RRRRyyyy yyyymmmm */
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uint8_t mdt_0; /* MSB */
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uint8_t psn_3; /* LSB */
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};
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static void print_mmc_cid(mmc_cid_t *cid)
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{
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printf("MMC found. Card desciption is:\n");
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printf("Manufacturer ID = %02x%02x%02x\n",
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cid->id[0], cid->id[1], cid->id[2]);
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printf("HW/FW Revision = %x %x\n",cid->hwrev, cid->fwrev);
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cid->hwrev = cid->fwrev = 0; /* null terminate string */
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printf("Product Name = %s\n",cid->name);
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printf("Serial Number = %02x%02x%02x\n",
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cid->sn[0], cid->sn[1], cid->sn[2]);
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printf("Month = %d\n",cid->month);
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||||
printf("Year = %d\n",1997 + cid->year);
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||||
}
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||||
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static void print_sd_cid(const struct sd_cid *cid)
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{
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||||
printf("Manufacturer: 0x%02x, OEM \"%c%c\"\n",
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||||
cid->mid, cid->oid_0, cid->oid_1);
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printf("Product name: \"%c%c%c%c%c\", revision %d.%d\n",
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||||
cid->pnm_0, cid->pnm_1, cid->pnm_2, cid->pnm_3, cid->pnm_4,
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||||
cid->prv >> 4, cid->prv & 15);
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printf("Serial number: %u\n",
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cid->psn_0 << 24 | cid->psn_1 << 16 | cid->psn_2 << 8 |
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cid->psn_3);
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printf("Manufacturing date: %d/%d\n",
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cid->mdt_1 & 15,
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2000+((cid->mdt_0 & 15) << 4)+((cid->mdt_1 & 0xf0) >> 4));
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printf("CRC: 0x%02x, b0 = %d\n",
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||||
cid->crc >> 1, cid->crc & 1);
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||||
}
|
||||
|
||||
int mmc_init(int verbose)
|
||||
{
|
||||
int retries, rc = -ENODEV;
|
||||
int is_sd = 0;
|
||||
u_int32_t *resp;
|
||||
S3C24X0_CLOCK_POWER * const clk_power = S3C24X0_GetBase_CLOCK_POWER();
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||||
|
||||
sdi = S3C2410_GetBase_SDI();
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||||
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||||
debug("mmc_init(PCLK=%u)\n", get_PCLK());
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||||
|
||||
clk_power->CLKCON |= (1 << 9);
|
||||
|
||||
sdi->SDIBSIZE = 512;
|
||||
#if defined(CONFIG_S3C2410)
|
||||
/* S3C2410 has some bug that prevents reliable operation at higher speed */
|
||||
//sdi->SDIPRE = 0x3e; /* SDCLK = PCLK/2 / (SDIPRE+1) = 396kHz */
|
||||
sdi->SDIPRE = 0x02; /* 2410: SDCLK = PCLK/2 / (SDIPRE+1) = 11MHz */
|
||||
sdi->SDIDTIMER = 0xffff;
|
||||
#elif defined(CONFIG_S3C2440) || defined(CONFIG_S3C2442)
|
||||
sdi->SDIPRE = 0x05; /* 2410: SDCLK = PCLK / (SDIPRE+1) = 11MHz */
|
||||
sdi->SDIDTIMER = 0x7fffff;
|
||||
#endif
|
||||
sdi->SDIIMSK = 0x0;
|
||||
sdi->SDICON = S3C2410_SDICON_FIFORESET|S3C2410_SDICON_CLOCKTYPE;
|
||||
udelay(125000); /* FIXME: 74 SDCLK cycles */
|
||||
|
||||
mmc_csd.c_size = 0;
|
||||
|
||||
/* reset */
|
||||
retries = 10;
|
||||
resp = mmc_cmd(MMC_CMD_RESET, 0, 0);
|
||||
|
||||
printf("trying to detect SD Card...\n");
|
||||
while (retries--) {
|
||||
udelay(100000);
|
||||
resp = mmc_cmd(55, 0x00000000, CMD_F_RESP);
|
||||
resp = mmc_cmd(41, 0x00300000, CMD_F_RESP);
|
||||
|
||||
if (resp[0] & (1 << 31)) {
|
||||
is_sd = 1;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (retries == 0 && !is_sd) {
|
||||
retries = 10;
|
||||
printf("failed to detect SD Card, trying MMC\n");
|
||||
resp = mmc_cmd(MMC_CMD_SEND_OP_COND, 0x00ffc000, CMD_F_RESP);
|
||||
while (retries-- && resp && !(resp[4] & 0x80)) {
|
||||
debug("resp %x %x\n", resp[0], resp[1]);
|
||||
udelay(50);
|
||||
resp = mmc_cmd(1, 0x00ffff00, CMD_F_RESP);
|
||||
}
|
||||
}
|
||||
|
||||
/* try to get card id */
|
||||
resp = mmc_cmd(MMC_CMD_ALL_SEND_CID, 0, CMD_F_RESP|CMD_F_RESP_LONG);
|
||||
if (resp) {
|
||||
if (!is_sd) {
|
||||
/* TODO configure mmc driver depending on card
|
||||
attributes */
|
||||
mmc_cid_t *cid = (mmc_cid_t *)resp;
|
||||
|
||||
if (verbose)
|
||||
print_mmc_cid(cid);
|
||||
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);
|
||||
}
|
||||
else {
|
||||
struct sd_cid *cid = (struct sd_cid *) resp;
|
||||
|
||||
if (verbose)
|
||||
print_sd_cid(cid);
|
||||
sprintf((char *) mmc_dev.vendor,
|
||||
"Man %02 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);
|
||||
sprintf((char *) mmc_dev.revision, "%d.%d",
|
||||
cid->prv >> 4, cid->prv & 15);
|
||||
}
|
||||
|
||||
/* 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 32MByte) */
|
||||
mmc_dev.blksz = 512;
|
||||
mmc_dev.lba = 0x10000;
|
||||
mmc_dev.removable = 0;
|
||||
mmc_dev.block_read = mmc_bread;
|
||||
|
||||
/* MMC exists, get CSD too */
|
||||
resp = mmc_cmd(MMC_CMD_SET_RCA, MMC_DEFAULT_RCA, CMD_F_RESP);
|
||||
if (is_sd)
|
||||
rca = resp[0] >> 16;
|
||||
|
||||
resp = mmc_cmd(MMC_CMD_SEND_CSD, rca<<16, CMD_F_RESP|CMD_F_RESP_LONG);
|
||||
if (resp) {
|
||||
mmc_csd_t *csd = (mmc_csd_t *)resp;
|
||||
memcpy(&mmc_csd, csd, sizeof(csd));
|
||||
rc = 0;
|
||||
mmc_ready = 1;
|
||||
/* FIXME add verbose printout for csd */
|
||||
printf("READ_BL_LEN=%u, C_SIZE_MULT=%u, C_SIZE=%u\n",
|
||||
csd->read_bl_len, csd->c_size_mult1, csd->c_size);
|
||||
printf("size = %u\n", mmc_size(csd));
|
||||
}
|
||||
}
|
||||
|
||||
resp = mmc_cmd(MMC_CMD_SELECT_CARD, rca<<16, CMD_F_RESP);
|
||||
|
||||
#ifdef CONFIG_MMC_WIDE
|
||||
if (is_sd) {
|
||||
resp = mmc_cmd(55, rca<<16, CMD_F_RESP);
|
||||
resp = mmc_cmd(6, 0x02, CMD_F_RESP);
|
||||
wide = 1;
|
||||
}
|
||||
#endif
|
||||
|
||||
fat_register_device(&mmc_dev,1); /* partitions start counting with 1 */
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
int
|
||||
mmc_ident(block_dev_desc_t *dev)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
mmc2info(ulong addr)
|
||||
{
|
||||
/* FIXME hard codes to 32 MB device */
|
||||
if (addr >= CFG_MMC_BASE && addr < CFG_MMC_BASE + 0x02000000)
|
||||
return 1;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#endif /* defined(CONFIG_MMC) && defined(CONFIG_MMC_S3C) */
|
||||
#endif
|
||||
33
qiboot/src/drivers/s3c24xx-mci.h
Normal file
33
qiboot/src/drivers/s3c24xx-mci.h
Normal file
@@ -0,0 +1,33 @@
|
||||
/*
|
||||
* (C) Copyright 2000-2003
|
||||
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
||||
*
|
||||
* 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 _MMC_H_
|
||||
#define _MMC_H_
|
||||
#include <asm/arch/mmc.h>
|
||||
|
||||
int mmc_init(int verbose);
|
||||
int mmc_read(ulong src, uchar *dst, int size);
|
||||
int mmc_write(uchar *src, ulong dst, int size);
|
||||
int mmc2info(ulong addr);
|
||||
|
||||
#endif /* _MMC_H_ */
|
||||
Reference in New Issue
Block a user