static struct list_head mmc_devices;
static int cur_dev_num = -1;
+int __board_mmc_getcd(u8 *cd, struct mmc *mmc) {
+ return -1;
+}
+
+int board_mmc_getcd(u8 *cd, struct mmc *mmc)__attribute__((weak,
+ alias("__board_mmc_getcd")));
+
int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
{
return mmc->send_cmd(mmc, cmd, data);
blklen = mmc->write_bl_len;
+ if ((start + blkcnt) > mmc->block_dev.lba) {
+ printf("MMC: block number 0x%lx exceeds max(0x%lx)",
+ start + blkcnt, mmc->block_dev.lba);
+ return 0;
+ }
err = mmc_set_blocklen(mmc, mmc->write_bl_len);
if (err) {
err = mmc_set_blocklen(mmc, mmc->read_bl_len);
if (err)
- return err;
+ goto free_buffer;
for (i = startblock; i <= endblock; i++) {
int segment_size;
if (!mmc)
return 0;
+ if ((start + blkcnt) > mmc->block_dev.lba) {
+ printf("MMC: block number 0x%lx exceeds max(0x%lx)",
+ start + blkcnt, mmc->block_dev.lba);
+ return 0;
+ }
/* We always do full block reads from the card */
err = mmc_set_blocklen(mmc, mmc->read_bl_len);
cmd.cmdidx = SD_CMD_APP_SEND_OP_COND;
cmd.resp_type = MMC_RSP_R3;
- cmd.cmdarg = mmc->voltages;
+
+ /*
+ * Most cards do not answer if some reserved bits
+ * in the ocr are set. However, Some controller
+ * can set bit 7 (reserved for low voltages), but
+ * how to manage low voltages SD card is not yet
+ * specified.
+ */
+ cmd.cmdarg = mmc->voltages & 0xff8000;
if (mmc->version == SD_VERSION_2)
cmd.cmdarg |= OCR_HCS;
if (mmc->version != SD_VERSION_2)
mmc->version = SD_VERSION_1_0;
- mmc->ocr = ((uint *)(cmd.response))[0];
+ mmc->ocr = cmd.response[0];
mmc->high_capacity = ((mmc->ocr & OCR_HCS) == OCR_HCS);
mmc->rca = 0;
return UNUSABLE_ERR;
mmc->version = MMC_VERSION_UNKNOWN;
- mmc->ocr = ((uint *)(cmd.response))[0];
+ mmc->ocr = cmd.response[0];
mmc->high_capacity = ((mmc->ocr & OCR_HCS) == OCR_HCS);
mmc->rca = 0;
return err;
}
- mmc->scr[0] = scr[0];
- mmc->scr[1] = scr[1];
+ mmc->scr[0] = __be32_to_cpu(scr[0]);
+ mmc->scr[1] = __be32_to_cpu(scr[1]);
switch ((mmc->scr[0] >> 24) & 0xf) {
case 0:
return err;
/* The high-speed function is busy. Try again */
- if (!switch_status[7] & SD_HIGHSPEED_BUSY)
+ if (!(__be32_to_cpu(switch_status[7]) & SD_HIGHSPEED_BUSY))
break;
}
mmc->card_caps |= MMC_MODE_4BIT;
/* If high-speed isn't supported, we return */
- if (!(switch_status[3] & SD_HIGHSPEED_SUPPORTED))
+ if (!(__be32_to_cpu(switch_status[3]) & SD_HIGHSPEED_SUPPORTED))
return 0;
err = sd_switch(mmc, SD_SWITCH_SWITCH, 0, 1, (u8 *)&switch_status);
if (err)
return err;
- if ((switch_status[4] & 0x0f000000) == 0x01000000)
+ if ((__be32_to_cpu(switch_status[4]) & 0x0f000000) == 0x01000000)
mmc->card_caps |= MMC_MODE_HS;
return 0;
uint mult, freq;
u64 cmult, csize;
struct mmc_cmd cmd;
+ char ext_csd[512];
/* Put the Card in Identify Mode */
cmd.cmdidx = MMC_CMD_ALL_SEND_CID;
return err;
if (IS_SD(mmc))
- mmc->rca = (((uint *)(cmd.response))[0] >> 16) & 0xffff;
+ mmc->rca = (cmd.response[0] >> 16) & 0xffff;
/* Get the Card-Specific Data */
cmd.cmdidx = MMC_CMD_SEND_CSD;
if (err)
return err;
- mmc->csd[0] = ((uint *)(cmd.response))[0];
- mmc->csd[1] = ((uint *)(cmd.response))[1];
- mmc->csd[2] = ((uint *)(cmd.response))[2];
- mmc->csd[3] = ((uint *)(cmd.response))[3];
+ mmc->csd[0] = cmd.response[0];
+ mmc->csd[1] = cmd.response[1];
+ mmc->csd[2] = cmd.response[2];
+ mmc->csd[3] = cmd.response[3];
if (mmc->version == MMC_VERSION_UNKNOWN) {
- int version = (cmd.response[0] >> 2) & 0xf;
+ int version = (cmd.response[0] >> 26) & 0xf;
switch (version) {
case 0:
}
/* divide frequency by 10, since the mults are 10x bigger */
- freq = fbase[(cmd.response[3] & 0x7)];
- mult = multipliers[((cmd.response[3] >> 3) & 0xf)];
+ freq = fbase[(cmd.response[0] & 0x7)];
+ mult = multipliers[((cmd.response[0] >> 3) & 0xf)];
mmc->tran_speed = freq * mult;
- mmc->read_bl_len = 1 << ((((uint *)(cmd.response))[1] >> 16) & 0xf);
+ mmc->read_bl_len = 1 << ((cmd.response[1] >> 16) & 0xf);
if (IS_SD(mmc))
mmc->write_bl_len = mmc->read_bl_len;
else
- mmc->write_bl_len = 1 << ((((uint *)(cmd.response))[3] >> 22) & 0xf);
+ mmc->write_bl_len = 1 << ((cmd.response[3] >> 22) & 0xf);
if (mmc->high_capacity) {
csize = (mmc->csd[1] & 0x3f) << 16
if (err)
return err;
+ 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;
+ }
+ }
+
if (IS_SD(mmc))
err = sd_change_freq(mmc);
else
mmc->block_dev.type = 0;
mmc->block_dev.blksz = mmc->read_bl_len;
mmc->block_dev.lba = lldiv(mmc->capacity, mmc->read_bl_len);
- sprintf(mmc->block_dev.vendor,"Man %02x%02x%02x Snr %02x%02x%02x%02x",
- mmc->cid[0], mmc->cid[1], mmc->cid[2],
- mmc->cid[9], mmc->cid[10], mmc->cid[11], mmc->cid[12]);
- sprintf(mmc->block_dev.product,"%c%c%c%c%c", mmc->cid[3],
- mmc->cid[4], mmc->cid[5], mmc->cid[6], mmc->cid[7]);
- sprintf(mmc->block_dev.revision,"%d.%d", mmc->cid[8] >> 4,
- mmc->cid[8] & 0xf);
+ sprintf(mmc->block_dev.vendor, "Man %06x Snr %08x", mmc->cid[0] >> 8,
+ (mmc->cid[2] << 8) | (mmc->cid[3] >> 24));
+ sprintf(mmc->block_dev.product, "%c%c%c%c%c", mmc->cid[0] & 0xff,
+ (mmc->cid[1] >> 24), (mmc->cid[1] >> 16) & 0xff,
+ (mmc->cid[1] >> 8) & 0xff, mmc->cid[1] & 0xff);
+ sprintf(mmc->block_dev.revision, "%d.%d", mmc->cid[2] >> 28,
+ (mmc->cid[2] >> 24) & 0xf);
init_part(&mmc->block_dev);
return 0;
if (err)
return err;
- if ((((uint *)(cmd.response))[0] & 0xff) != 0xaa)
+ if ((cmd.response[0] & 0xff) != 0xaa)
return UNUSABLE_ERR;
else
mmc->version = SD_VERSION_2;
if (err)
return err;
+ mmc_set_bus_width(mmc, 1);
+ mmc_set_clock(mmc, 1);
+
/* Reset the Card */
err = mmc_go_idle(mmc);
/* Test for SD version 2 */
err = mmc_send_if_cond(mmc);
- /* If we got an error other than timeout, we bail */
- if (err && err != TIMEOUT)
- return err;
-
/* Now try to get the SD card's operating condition */
err = sd_send_op_cond(mmc);
projects / u-boot / blobdiff