mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-23 22:59:40 +02:00
remove useless functions in jz_mmc.c:
mmc_block_write, mmc_write, mmc_ident, mmc2info remove auto-generate file: board/xburst/nanonote/config.tmp cleanup the mmc_bread function: since we always read block, no aligned problem. Signed-off-by: Xiangfu Liu <xiangfu@sharism.cc>
This commit is contained in:
Xiangfu Liu
parent
d2f389bd2b
commit
ee76fb4f89
@ -1 +0,0 @@
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TEXT_BASE = 0x80100000
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@ -29,10 +29,25 @@
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#include <asm/jz4740.h>
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#include "jz_mmc.h"
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#define debug(...) ;
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#define CFG_MMC_BASE 0x80600000
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static int sd2_0 = 0;
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static uchar mmc_buf[1024];
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static int mmc_ready = 0;
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static int use_4bit; /* Use 4-bit data bus */
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/*
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* MMC Events
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*/
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#define MMC_EVENT_NONE 0x00 /* No events */
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#define MMC_EVENT_RX_DATA_DONE 0x01 /* Rx data done */
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#define MMC_EVENT_TX_DATA_DONE 0x02 /* Tx data done */
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#define MMC_EVENT_PROG_DONE 0x04 /* Programming is done */
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#define MMC_IRQ_MASK() \
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do { \
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REG_MSC_IMASK = 0xffff; \
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REG_MSC_IREG = 0xffff; \
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} while (0)
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/*
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* GPIO definition
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@ -77,7 +92,6 @@ do { \
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* Local functions
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*/
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#ifdef CONFIG_MMC
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extern int
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fat_register_device(block_dev_desc_t *dev_desc, int part_no);
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@ -88,28 +102,6 @@ block_dev_desc_t * mmc_get_dev(int dev)
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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[1024];
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static int mmc_ready = 0;
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static int use_4bit; /* Use 4-bit data bus */
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/*
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* MMC Events
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*/
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#define MMC_EVENT_NONE 0x00 /* No events */
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#define MMC_EVENT_RX_DATA_DONE 0x01 /* Rx data done */
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#define MMC_EVENT_TX_DATA_DONE 0x02 /* Tx data done */
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#define MMC_EVENT_PROG_DONE 0x04 /* Programming is done */
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#define MMC_IRQ_MASK() \
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do { \
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REG_MSC_IMASK = 0xffff; \
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REG_MSC_IREG = 0xffff; \
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} while (0)
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/* Stop the MMC clock and wait while it happens */
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static inline int jz_mmc_stop_clock(void)
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{
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@ -565,165 +557,40 @@ int mmc_block_read(u8 *dst, ulong src, ulong len)
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goto exit;
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mmc_simple_cmd(&request, MMC_CMD_SET_BLOCKLEN, len, RESPONSE_R1);
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if ((retval = mmc_unpack_r1(&request, &r1, 0)))
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if (retval = mmc_unpack_r1(&request, &r1, 0))
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goto exit;
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if (sd2_0)
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src /= len;
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mmc_send_cmd(&request, MMC_CMD_READ_SINGLE_BLOCK, src, 1,len, RESPONSE_R1, dst);
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if ((retval = mmc_unpack_r1(&request, &r1, 0)))
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mmc_send_cmd(&request, MMC_CMD_READ_SINGLE_BLOCK, src, 1, len, RESPONSE_R1, dst);
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if (retval = mmc_unpack_r1(&request, &r1, 0))
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goto exit;
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exit:
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return retval;
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}
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int mmc_block_write(ulong dst, uchar *src, int len)
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ulong mmc_bread(int dev_num, ulong blkstart, ulong blkcnt, ulong *dst)
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{
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return 0;
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}
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int xburst_mmc_read(u64 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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}
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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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debug("---- start %s ---- \n", __func__);
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mmc_block_size = mmcinfo.block_len;
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mmc_block_address = ~(mmc_block_size - 1);
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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,
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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("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)) < 0) {
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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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int i = 0;
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ulong src = blkstart * mmcinfo.block_len;
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ulong dst_tmp = dst;
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for (i = 0; i < blkcnt; i++) {
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if ((mmc_block_read((uchar *)(dst_tmp), src, mmcinfo.block_len)) < 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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dst_tmp += mmcinfo.block_len;
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src += mmcinfo.block_len;
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}
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for (; src < aligned_end; src += mmc_block_size, dst += mmc_block_size) {
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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 ((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("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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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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debug("---- end %s ---- \n", __func__);
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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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}
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if (!mmc_ready) {
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printf("MMC card is not ready\n");
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return -1;
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}
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mmc_block_size = mmcinfo.block_len;
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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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}
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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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}
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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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}
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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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}
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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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ulong mmc_bread(int dev_num, ulong blknr, ulong blkcnt, ulong *dst)
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{
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int mmc_block_size = mmcinfo.block_len;
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ulong src = blknr * mmc_block_size ;//+ CFG_MMC_BASE;
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xburst_mmc_read(src, (uchar *)dst, blkcnt*mmc_block_size);
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return blkcnt;
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return i;
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}
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int mmc_select_card(void)
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@ -1008,23 +875,9 @@ int mmc_legacy_init(int verbose)
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return 0;
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}
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int mmc_ident(block_dev_desc_t *dev)
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{
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return 0;
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}
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int mmc2info(ulong addr)
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{
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/* FIXME hard codes to 32 MB device */
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if (addr >= CFG_MMC_BASE && addr < CFG_MMC_BASE + 0x02000000) {
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return 1;
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}
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return 0;;
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}
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/*
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* Debugging functions
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*/
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static char * mmc_result_strings[] = {
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"NO_RESPONSE",
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"NO_ERROR",
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@ -1326,5 +1179,3 @@ void mmc_send_cmd(struct mmc_request *request, int cmd, u32 arg,
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jz_mmc_exec_cmd(request);
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}
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#endif /* CONFIG_MMC */
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@ -13,7 +13,6 @@
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#ifndef __MMC_JZMMC_H__
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#define __MMC_JZMMC_H__
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#define MMC_DEBUG_LEVEL 0 /* Enable Debug: 0 - no debug */
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#define ID_TO_RCA(x) ((x)+1)
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#define MMC_OCR_ARG 0x00ff8000 /* Argument of OCR */
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@ -174,6 +173,4 @@ static inline void mmc_simple_cmd(struct mmc_request *request, int cmd, u32 arg,
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mmc_send_cmd( request, cmd, arg, 0, 0, rtype, 0);
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}
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int mmc2info(ulong addr);
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#endif /* __MMC_JZMMC_H__ */
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