mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-25 03:18:51 +09:00
![Simon Glass](/assets/img/avatar_default.png)
At present erase is not suported with CONFIG_DM_OPS. Add it so that MMC devices can be erased. Signed-off-by: Simon Glass <sjg@chromium.org>
225 lines
4.9 KiB
C
225 lines
4.9 KiB
C
/*
|
|
* Copyright 2008, Freescale Semiconductor, Inc
|
|
* Andy Fleming
|
|
*
|
|
* Based vaguely on the Linux code
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <config.h>
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <part.h>
|
|
#include <div64.h>
|
|
#include <linux/math64.h>
|
|
#include "mmc_private.h"
|
|
|
|
static ulong mmc_erase_t(struct mmc *mmc, ulong start, lbaint_t blkcnt)
|
|
{
|
|
struct mmc_cmd cmd;
|
|
ulong end;
|
|
int err, start_cmd, end_cmd;
|
|
|
|
if (mmc->high_capacity) {
|
|
end = start + blkcnt - 1;
|
|
} else {
|
|
end = (start + blkcnt - 1) * mmc->write_bl_len;
|
|
start *= mmc->write_bl_len;
|
|
}
|
|
|
|
if (IS_SD(mmc)) {
|
|
start_cmd = SD_CMD_ERASE_WR_BLK_START;
|
|
end_cmd = SD_CMD_ERASE_WR_BLK_END;
|
|
} else {
|
|
start_cmd = MMC_CMD_ERASE_GROUP_START;
|
|
end_cmd = MMC_CMD_ERASE_GROUP_END;
|
|
}
|
|
|
|
cmd.cmdidx = start_cmd;
|
|
cmd.cmdarg = start;
|
|
cmd.resp_type = MMC_RSP_R1;
|
|
|
|
err = mmc_send_cmd(mmc, &cmd, NULL);
|
|
if (err)
|
|
goto err_out;
|
|
|
|
cmd.cmdidx = end_cmd;
|
|
cmd.cmdarg = end;
|
|
|
|
err = mmc_send_cmd(mmc, &cmd, NULL);
|
|
if (err)
|
|
goto err_out;
|
|
|
|
cmd.cmdidx = MMC_CMD_ERASE;
|
|
cmd.cmdarg = MMC_ERASE_ARG;
|
|
cmd.resp_type = MMC_RSP_R1b;
|
|
|
|
err = mmc_send_cmd(mmc, &cmd, NULL);
|
|
if (err)
|
|
goto err_out;
|
|
|
|
return 0;
|
|
|
|
err_out:
|
|
puts("mmc erase failed\n");
|
|
return err;
|
|
}
|
|
|
|
#ifdef CONFIG_BLK
|
|
ulong mmc_berase(struct udevice *dev, lbaint_t start, lbaint_t blkcnt)
|
|
#else
|
|
ulong mmc_berase(struct blk_desc *block_dev, lbaint_t start, lbaint_t blkcnt)
|
|
#endif
|
|
{
|
|
#ifdef CONFIG_BLK
|
|
struct blk_desc *block_dev = dev_get_uclass_platdata(dev);
|
|
#endif
|
|
int dev_num = block_dev->devnum;
|
|
int err = 0;
|
|
u32 start_rem, blkcnt_rem;
|
|
struct mmc *mmc = find_mmc_device(dev_num);
|
|
lbaint_t blk = 0, blk_r = 0;
|
|
int timeout = 1000;
|
|
|
|
if (!mmc)
|
|
return -1;
|
|
|
|
err = blk_select_hwpart_devnum(IF_TYPE_MMC, dev_num,
|
|
block_dev->hwpart);
|
|
if (err < 0)
|
|
return -1;
|
|
|
|
/*
|
|
* We want to see if the requested start or total block count are
|
|
* unaligned. We discard the whole numbers and only care about the
|
|
* remainder.
|
|
*/
|
|
err = div_u64_rem(start, mmc->erase_grp_size, &start_rem);
|
|
err = div_u64_rem(blkcnt, mmc->erase_grp_size, &blkcnt_rem);
|
|
if (start_rem || blkcnt_rem)
|
|
printf("\n\nCaution! Your devices Erase group is 0x%x\n"
|
|
"The erase range would be change to "
|
|
"0x" LBAF "~0x" LBAF "\n\n",
|
|
mmc->erase_grp_size, start & ~(mmc->erase_grp_size - 1),
|
|
((start + blkcnt + mmc->erase_grp_size)
|
|
& ~(mmc->erase_grp_size - 1)) - 1);
|
|
|
|
while (blk < blkcnt) {
|
|
if (IS_SD(mmc) && mmc->ssr.au) {
|
|
blk_r = ((blkcnt - blk) > mmc->ssr.au) ?
|
|
mmc->ssr.au : (blkcnt - blk);
|
|
} else {
|
|
blk_r = ((blkcnt - blk) > mmc->erase_grp_size) ?
|
|
mmc->erase_grp_size : (blkcnt - blk);
|
|
}
|
|
err = mmc_erase_t(mmc, start + blk, blk_r);
|
|
if (err)
|
|
break;
|
|
|
|
blk += blk_r;
|
|
|
|
/* Waiting for the ready status */
|
|
if (mmc_send_status(mmc, timeout))
|
|
return 0;
|
|
}
|
|
|
|
return blk;
|
|
}
|
|
|
|
static ulong mmc_write_blocks(struct mmc *mmc, lbaint_t start,
|
|
lbaint_t blkcnt, const void *src)
|
|
{
|
|
struct mmc_cmd cmd;
|
|
struct mmc_data data;
|
|
int timeout = 1000;
|
|
|
|
if ((start + blkcnt) > mmc_get_blk_desc(mmc)->lba) {
|
|
printf("MMC: block number 0x" LBAF " exceeds max(0x" LBAF ")\n",
|
|
start + blkcnt, mmc_get_blk_desc(mmc)->lba);
|
|
return 0;
|
|
}
|
|
|
|
if (blkcnt == 0)
|
|
return 0;
|
|
else if (blkcnt == 1)
|
|
cmd.cmdidx = MMC_CMD_WRITE_SINGLE_BLOCK;
|
|
else
|
|
cmd.cmdidx = MMC_CMD_WRITE_MULTIPLE_BLOCK;
|
|
|
|
if (mmc->high_capacity)
|
|
cmd.cmdarg = start;
|
|
else
|
|
cmd.cmdarg = start * mmc->write_bl_len;
|
|
|
|
cmd.resp_type = MMC_RSP_R1;
|
|
|
|
data.src = src;
|
|
data.blocks = blkcnt;
|
|
data.blocksize = mmc->write_bl_len;
|
|
data.flags = MMC_DATA_WRITE;
|
|
|
|
if (mmc_send_cmd(mmc, &cmd, &data)) {
|
|
printf("mmc write failed\n");
|
|
return 0;
|
|
}
|
|
|
|
/* SPI multiblock writes terminate using a special
|
|
* token, not a STOP_TRANSMISSION request.
|
|
*/
|
|
if (!mmc_host_is_spi(mmc) && blkcnt > 1) {
|
|
cmd.cmdidx = MMC_CMD_STOP_TRANSMISSION;
|
|
cmd.cmdarg = 0;
|
|
cmd.resp_type = MMC_RSP_R1b;
|
|
if (mmc_send_cmd(mmc, &cmd, NULL)) {
|
|
printf("mmc fail to send stop cmd\n");
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* Waiting for the ready status */
|
|
if (mmc_send_status(mmc, timeout))
|
|
return 0;
|
|
|
|
return blkcnt;
|
|
}
|
|
|
|
#ifdef CONFIG_BLK
|
|
ulong mmc_bwrite(struct udevice *dev, lbaint_t start, lbaint_t blkcnt,
|
|
const void *src)
|
|
#else
|
|
ulong mmc_bwrite(struct blk_desc *block_dev, lbaint_t start, lbaint_t blkcnt,
|
|
const void *src)
|
|
#endif
|
|
{
|
|
#ifdef CONFIG_BLK
|
|
struct blk_desc *block_dev = dev_get_uclass_platdata(dev);
|
|
#endif
|
|
int dev_num = block_dev->devnum;
|
|
lbaint_t cur, blocks_todo = blkcnt;
|
|
int err;
|
|
|
|
struct mmc *mmc = find_mmc_device(dev_num);
|
|
if (!mmc)
|
|
return 0;
|
|
|
|
err = blk_select_hwpart_devnum(IF_TYPE_MMC, dev_num, block_dev->hwpart);
|
|
if (err < 0)
|
|
return 0;
|
|
|
|
if (mmc_set_blocklen(mmc, mmc->write_bl_len))
|
|
return 0;
|
|
|
|
do {
|
|
cur = (blocks_todo > mmc->cfg->b_max) ?
|
|
mmc->cfg->b_max : blocks_todo;
|
|
if (mmc_write_blocks(mmc, start, cur, src) != cur)
|
|
return 0;
|
|
blocks_todo -= cur;
|
|
start += cur;
|
|
src += cur * mmc->write_bl_len;
|
|
} while (blocks_todo > 0);
|
|
|
|
return blkcnt;
|
|
}
|