#include <part.h>
#include <malloc.h>
#include <linux/list.h>
-#include <mmc.h>
#include <div64.h>
/* Set block count limit because of 16 bit register limit on some hardware*/
int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
{
+#ifdef CONFIG_MMC_TRACE
+ int ret;
+ int i;
+ u8 *ptr;
+
+ printf("CMD_SEND:%d\n", cmd->cmdidx);
+ printf("\t\tARG\t\t\t 0x%08X\n", cmd->cmdarg);
+ printf("\t\tFLAG\t\t\t %d\n", cmd->flags);
+ ret = mmc->send_cmd(mmc, cmd, data);
+ switch (cmd->resp_type) {
+ case MMC_RSP_NONE:
+ printf("\t\tMMC_RSP_NONE\n");
+ break;
+ case MMC_RSP_R1:
+ printf("\t\tMMC_RSP_R1,5,6,7 \t 0x%08X \n",
+ cmd->response[0]);
+ break;
+ case MMC_RSP_R1b:
+ printf("\t\tMMC_RSP_R1b\t\t 0x%08X \n",
+ cmd->response[0]);
+ break;
+ case MMC_RSP_R2:
+ printf("\t\tMMC_RSP_R2\t\t 0x%08X \n",
+ cmd->response[0]);
+ printf("\t\t \t\t 0x%08X \n",
+ cmd->response[1]);
+ printf("\t\t \t\t 0x%08X \n",
+ cmd->response[2]);
+ printf("\t\t \t\t 0x%08X \n",
+ cmd->response[3]);
+ printf("\n");
+ printf("\t\t\t\t\tDUMPING DATA\n");
+ for (i = 0; i < 4; i++) {
+ int j;
+ printf("\t\t\t\t\t%03d - ", i*4);
+ ptr = &cmd->response[i];
+ ptr += 3;
+ for (j = 0; j < 4; j++)
+ printf("%02X ", *ptr--);
+ printf("\n");
+ }
+ break;
+ case MMC_RSP_R3:
+ printf("\t\tMMC_RSP_R3,4\t\t 0x%08X \n",
+ cmd->response[0]);
+ break;
+ default:
+ printf("\t\tERROR MMC rsp not supported\n");
+ break;
+ }
+ return ret;
+#else
return mmc->send_cmd(mmc, cmd, data);
+#endif
+}
+
+int mmc_send_status(struct mmc *mmc, int timeout)
+{
+ struct mmc_cmd cmd;
+ int err;
+#ifdef CONFIG_MMC_TRACE
+ int status;
+#endif
+
+ cmd.cmdidx = MMC_CMD_SEND_STATUS;
+ cmd.resp_type = MMC_RSP_R1;
+ cmd.cmdarg = 0;
+ cmd.flags = 0;
+
+ do {
+ err = mmc_send_cmd(mmc, &cmd, NULL);
+ if (err)
+ return err;
+ else if (cmd.response[0] & MMC_STATUS_RDY_FOR_DATA)
+ break;
+
+ udelay(1000);
+
+ if (cmd.response[0] & MMC_STATUS_MASK) {
+ printf("Status Error: 0x%08X\n", cmd.response[0]);
+ return COMM_ERR;
+ }
+ } while (timeout--);
+
+#ifdef CONFIG_MMC_TRACE
+ status = (cmd.response[0] & MMC_STATUS_CURR_STATE) >> 9;
+ printf("CURR STATE:%d\n", status);
+#endif
+ if (!timeout) {
+ printf("Timeout waiting card ready\n");
+ return TIMEOUT;
+ }
+
+ return 0;
}
int mmc_set_blocklen(struct mmc *mmc, int len)
{
struct mmc_cmd cmd;
struct mmc_data data;
+ int timeout = 1000;
if ((start + blkcnt) > mmc->block_dev.lba) {
printf("MMC: block number 0x%lx exceeds max(0x%lx)\n",
printf("mmc fail to send stop cmd\n");
return 0;
}
+
+ /* Waiting for the ready status */
+ mmc_send_status(mmc, timeout);
}
return blkcnt;
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;
{
struct mmc_cmd cmd;
struct mmc_data data;
+ int timeout = 1000;
if (blkcnt > 1)
cmd.cmdidx = MMC_CMD_READ_MULTIPLE_BLOCK;
printf("mmc fail to send stop cmd\n");
return 0;
}
+
+ /* Waiting for the ready status */
+ mmc_send_status(mmc, timeout);
}
return blkcnt;
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;
int mmc_send_op_cond(struct mmc *mmc)
{
- int timeout = 1000;
+ int timeout = 10000;
struct mmc_cmd cmd;
int err;
/* Some cards seem to need this */
mmc_go_idle(mmc);
+ /* Asking to the card its capabilities */
+ cmd.cmdidx = MMC_CMD_SEND_OP_COND;
+ 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;
- cmd.cmdarg = OCR_HCS | (mmc_host_is_spi(mmc) ? 0 :
- mmc->voltages);
+ cmd.cmdarg = (mmc_host_is_spi(mmc) ? 0 :
+ (mmc->voltages &
+ (cmd.response[0] & OCR_VOLTAGE_MASK)) |
+ (cmd.response[0] & OCR_ACCESS_MODE));
cmd.flags = 0;
err = mmc_send_cmd(mmc, &cmd, NULL);
int mmc_switch(struct mmc *mmc, u8 set, u8 index, u8 value)
{
struct mmc_cmd cmd;
+ int timeout = 1000;
+ int ret;
cmd.cmdidx = MMC_CMD_SWITCH;
cmd.resp_type = MMC_RSP_R1b;
cmd.cmdarg = (MMC_SWITCH_MODE_WRITE_BYTE << 24) |
- (index << 16) |
- (value << 8);
+ (index << 16) |
+ (value << 8);
cmd.flags = 0;
- return mmc_send_cmd(mmc, &cmd, NULL);
+ ret = mmc_send_cmd(mmc, &cmd, NULL);
+
+ /* Waiting for the ready status */
+ mmc_send_status(mmc, timeout);
+
+ return ret;
+
}
int mmc_change_freq(struct mmc *mmc)
if (err)
return err;
- if (ext_csd[212] || ext_csd[213] || ext_csd[214] || ext_csd[215])
- mmc->high_capacity = 1;
-
cardtype = ext_csd[196] & 0xf;
err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_HS_TIMING, 1);
u64 cmult, csize;
struct mmc_cmd cmd;
char ext_csd[512];
+ int timeout = 1000;
#ifdef CONFIG_MMC_SPI_CRC_ON
if (mmc_host_is_spi(mmc)) { /* enable CRC check for spi */
err = mmc_send_cmd(mmc, &cmd, NULL);
+ /* Waiting for the ready status */
+ mmc_send_status(mmc, timeout);
+
if (err)
return err;
mmc->block_dev.removable = 1;
mmc->block_dev.block_read = mmc_bread;
mmc->block_dev.block_write = mmc_bwrite;
+ if (!mmc->b_max)
+ mmc->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
INIT_LIST_HEAD (&mmc->link);
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