cmd.cmdidx = MMC_CMD_SEND_STATUS;
cmd.resp_type = MMC_RSP_R1;
- cmd.cmdarg = 0;
+ if (!mmc_host_is_spi(mmc))
+ cmd.cmdarg = mmc->rca << 16;
cmd.flags = 0;
do {
return NULL;
}
+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;
+ cmd.flags = 0;
+
+ 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 = SECURE_ERASE;
+ 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;
+}
+
+static unsigned long
+mmc_berase(int dev_num, unsigned long start, lbaint_t blkcnt)
+{
+ int err = 0;
+ struct mmc *mmc = find_mmc_device(dev_num);
+ lbaint_t blk = 0, blk_r = 0;
+
+ if (!mmc)
+ return -1;
+
+ if ((start % mmc->erase_grp_size) || (blkcnt % mmc->erase_grp_size))
+ printf("\n\nCaution! Your devices Erase group is 0x%x\n"
+ "The erase range would be change to 0x%lx~0x%lx\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) {
+ 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;
+ }
+
+ return blk;
+}
+
static ulong
mmc_write_blocks(struct mmc *mmc, ulong start, lbaint_t blkcnt, const void*src)
{
return 0;
do {
- cur = (blocks_todo > CONFIG_SYS_MMC_MAX_BLK_COUNT) ?
- CONFIG_SYS_MMC_MAX_BLK_COUNT : blocks_todo;
+ cur = (blocks_todo > mmc->b_max) ? mmc->b_max : blocks_todo;
if(mmc_write_blocks(mmc, start, cur, src) != cur)
return 0;
blocks_todo -= cur;
return 0;
do {
- cur = (blocks_todo > CONFIG_SYS_MMC_MAX_BLK_COUNT) ?
- CONFIG_SYS_MMC_MAX_BLK_COUNT : blocks_todo;
+ cur = (blocks_todo > mmc->b_max) ? mmc->b_max : blocks_todo;
if(mmc_read_blocks(mmc, dst, start, cur) != cur)
return 0;
blocks_todo -= cur;
cmd.resp_type = MMC_RSP_R3;
cmd.cmdarg = 0;
cmd.flags = 0;
-
+
err = mmc_send_cmd(mmc, &cmd, NULL);
-
+
if (err)
return err;
-
+
udelay(1000);
-
+
do {
cmd.cmdidx = MMC_CMD_SEND_OP_COND;
cmd.resp_type = MMC_RSP_R3;
(mmc->voltages &
(cmd.response[0] & OCR_VOLTAGE_MASK)) |
(cmd.response[0] & OCR_ACCESS_MODE));
+
+ if (mmc->host_caps & MMC_MODE_HC)
+ cmd.cmdarg |= OCR_HCS;
+
cmd.flags = 0;
err = mmc_send_cmd(mmc, &cmd, NULL);
return 0;
}
+int mmc_switch_part(int dev_num, unsigned int part_num)
+{
+ struct mmc *mmc = find_mmc_device(dev_num);
+
+ if (!mmc)
+ return -1;
+
+ return mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_PART_CONF,
+ (mmc->part_config & ~PART_ACCESS_MASK)
+ | (part_num & PART_ACCESS_MASK));
+}
+
int sd_switch(struct mmc *mmc, int mode, int group, u8 value, u8 *resp)
{
struct mmc_cmd cmd;
{
int err;
struct mmc_cmd cmd;
- uint scr[2];
- uint switch_status[16];
+ ALLOC_CACHE_ALIGN_BUFFER(uint, scr, 2);
+ ALLOC_CACHE_ALIGN_BUFFER(uint, switch_status, 16);
struct mmc_data data;
int timeout;
timeout = 3;
retry_scr:
- data.dest = (char *)&scr;
+ data.dest = (char *)scr;
data.blocksize = 8;
data.blocks = 1;
data.flags = MMC_DATA_READ;
timeout = 4;
while (timeout--) {
err = sd_switch(mmc, SD_SWITCH_CHECK, 0, 1,
- (u8 *)&switch_status);
+ (u8 *)switch_status);
if (err)
return err;
if (!(__be32_to_cpu(switch_status[3]) & SD_HIGHSPEED_SUPPORTED))
return 0;
- err = sd_switch(mmc, SD_SWITCH_SWITCH, 0, 1, (u8 *)&switch_status);
+ err = sd_switch(mmc, SD_SWITCH_SWITCH, 0, 1, (u8 *)switch_status);
if (err)
return err;
{
int err;
uint mult, freq;
- u64 cmult, csize;
+ u64 cmult, csize, capacity;
struct mmc_cmd cmd;
char ext_csd[512];
int timeout = 1000;
return err;
}
+ /*
+ * For SD, its erase group is always one sector
+ */
+ mmc->erase_grp_size = 1;
+ mmc->part_config = MMCPART_NOAVAILABLE;
if (!IS_SD(mmc) && (mmc->version >= MMC_VERSION_4)) {
/* check ext_csd version and capacity */
err = mmc_send_ext_csd(mmc, ext_csd);
if (!err & (ext_csd[192] >= 2)) {
- mmc->capacity = ext_csd[212] << 0 | ext_csd[213] << 8 |
- ext_csd[214] << 16 | ext_csd[215] << 24;
- mmc->capacity *= 512;
+ /*
+ * According to the JEDEC Standard, the value of
+ * ext_csd's capacity is valid if the value is more
+ * than 2GB
+ */
+ capacity = ext_csd[212] << 0 | ext_csd[213] << 8 |
+ ext_csd[214] << 16 | ext_csd[215] << 24;
+ capacity *= 512;
+ if ((capacity >> 20) > 2 * 1024)
+ mmc->capacity = capacity;
}
+
+ /*
+ * Check whether GROUP_DEF is set, if yes, read out
+ * group size from ext_csd directly, or calculate
+ * the group size from the csd value.
+ */
+ if (ext_csd[175])
+ mmc->erase_grp_size = ext_csd[224] * 512 * 1024;
+ else {
+ int erase_gsz, erase_gmul;
+ erase_gsz = (mmc->csd[2] & 0x00007c00) >> 10;
+ erase_gmul = (mmc->csd[2] & 0x000003e0) >> 5;
+ mmc->erase_grp_size = (erase_gsz + 1)
+ * (erase_gmul + 1);
+ }
+
+ /* store the partition info of emmc */
+ if (ext_csd[160] & PART_SUPPORT)
+ mmc->part_config = ext_csd[179];
}
if (IS_SD(mmc))
mmc->block_dev.removable = 1;
mmc->block_dev.block_read = mmc_bread;
mmc->block_dev.block_write = mmc_bwrite;
+ mmc->block_dev.block_erase = mmc_berase;
+ if (!mmc->b_max)
+ mmc->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
INIT_LIST_HEAD (&mmc->link);
return 0;
}
+#ifdef CONFIG_PARTITIONS
block_dev_desc_t *mmc_get_dev(int dev)
{
struct mmc *mmc = find_mmc_device(dev);
return mmc ? &mmc->block_dev : NULL;
}
+#endif
int mmc_init(struct mmc *mmc)
{
int err;
+ if (mmc->has_init)
+ return 0;
+
err = mmc->init(mmc);
if (err)
if (err)
return err;
+ /* The internal partition reset to user partition(0) at every CMD0*/
+ mmc->part_num = 0;
+
/* Test for SD version 2 */
err = mmc_send_if_cond(mmc);
}
}
- return mmc_startup(mmc);
+ err = mmc_startup(mmc);
+ if (err)
+ mmc->has_init = 0;
+ else
+ mmc->has_init = 1;
+ return err;
}
/*
printf("\n");
}
+int get_mmc_num(void)
+{
+ return cur_dev_num;
+}
+
int mmc_initialize(bd_t *bis)
{
INIT_LIST_HEAD (&mmc_devices);
projects / u-boot / blobdiff