cyg_uint32 mmc_init(cyg_uint32 bus_width)
{
- cyg_uint32 status = FAIL;
- cyg_uint32 spec_version;
- /* Get CID number of MMC Card */
- if (!mxcmci_get_cid()) {
- /* Set RCA of the MMC Card */
- if (!mmc_set_rca()) {
- flash_dprintf(FLASH_DEBUG_MAX, "%s: mmc_set_rca OK!",
- __FUNCTION__);
- /* Get Spec version supported by the card */
- spec_version = mmc_get_spec_ver();
- //diag_printf("SPEC Version: %d\n", spec_version);
-
- /*Enable operating frequency */
- host_cfg_clock(OPERATING_FREQ);
-
- /*Put MMC in Transfer State */
- if (!mxcmci_trans_prepare()) {
+ cyg_uint32 status = FAIL;
+ cyg_uint32 spec_version;
+ /* Get CID number of MMC Card */
+ if (!mxcmci_get_cid()) {
+ /* Set RCA of the MMC Card */
+ if (!mmc_set_rca()) {
+ flash_dprintf(FLASH_DEBUG_MAX, "%s: mmc_set_rca OK!",
+ __FUNCTION__);
+ /* Get Spec version supported by the card */
+ spec_version = mmc_get_spec_ver();
+ //diag_printf("SPEC Version: %d\n", spec_version);
+
+ /*Enable operating frequency */
+ host_cfg_clock(OPERATING_FREQ);
+
+ /*Put MMC in Transfer State */
+ if (!mxcmci_trans_prepare()) {
#if 0
- if (mmc_set_high_speed_mode()) {
- return FAIL;
- }
+ if (mmc_set_high_speed_mode()) {
+ return FAIL;
+ }
#endif
- /* Set block length for transfer */
- //diag_printf("Send CMD to Set Block Length.\n");
- if (sdmmc_set_blklen(BLK_LEN))
- return FAIL;
+ /* Set block length for transfer */
+ //diag_printf("Send CMD to Set Block Length.\n");
+ if (sdmmc_set_blklen(BLK_LEN))
+ return FAIL;
- flash_dprintf(FLASH_DEBUG_MAX, "%s: mxcmci_trans_prepare OK!",
- __FUNCTION__);
+ flash_dprintf(FLASH_DEBUG_MAX, "%s: mxcmci_trans_prepare OK!",
+ __FUNCTION__);
- if (!mmc_set_bus_width(bus_width)) {
- esdhc_base_pointer->protocol_control &= ~(0x3 << 1);
- esdhc_base_pointer->protocol_control |= (bus_width >> 2) << 1;
- status = SUCCESS;
- diag_printf("Bus Width: %d\n",
- bus_width);
- }
+ if (!mmc_set_bus_width(bus_width)) {
+ esdhc_base_pointer->protocol_control &= ~(0x3 << 1);
+ esdhc_base_pointer->protocol_control |= (bus_width >> 2) << 1;
+ status = SUCCESS;
+ diag_printf("Bus Width: %d\n",
+ bus_width);
+ }
- }
- }
- }
+ }
+ }
+ }
- return status;
+ return status;
}
cyg_uint32 mmc_data_read(cyg_uint32 * dest_ptr, cyg_uint32 length,
cyg_uint32 offset)
{
- command_t cmd;
- int len;
- cyg_uint32 read_block_status = 0;
- cyg_uint32 blk_len = BLK_LEN;
- unsigned int SectorNum = 0;
-
- /* Assing length of data to be read */
- SectorNum = length / blk_len;
- if ((length % blk_len) != 0)
- SectorNum++;
- /* hight capacity card uses sector mode */
- if(HighCapacityCard)
- offset = offset/512;
-
- /* wait until in transfer mode */
- while (mxcmci_trans_status()) {
- hal_delay_us(5);
- }
-
- reread:
- /* Configure interface block and number of blocks */
- host_cfg_block(BLK_LEN, SectorNum);
-
- if (SectorNum == 1) {
- //diag_printf("Send CMD17...\n");
- /* Comfigure command CMD17 for single block read */
- mxcmci_cmd_config(&cmd, CMD17, offset, READ, RESPONSE_48,
- DATA_PRESENT, ENABLE, ENABLE);
-
- if (host_send_cmd(&cmd) == FAIL) {
- diag_printf("%s: Can't send CMD17!\n", __FUNCTION__);
- esdhc_softreset(ESDHC_RESET_CMD_MSK |
- ESDHC_RESET_DAT_MSK);
- read_block_status = FAIL;
-
- } else {
- //diag_printf("host_data_read! dest_ptr: 0%x \n", dest_ptr);
- /* Call interface Data read function */
- read_block_status = host_data_read(dest_ptr, BLK_LEN);
-
- if (read_block_status) { /* fail */
- //diag_printf("%s: Failed, read_block_status =%d\n", __FUNCTION__, read_block_status);
- /* re-transfer if data transfer error occurs */
- goto reread;
- }
- }
- } else { /* read multi-blocks */
-
- /* Comfigure command CMD18 for multiple block read */
- mxcmci_cmd_config(&cmd, CMD18, offset, READ, RESPONSE_48,
- DATA_PRESENT, ENABLE, ENABLE);
-
- if (host_send_cmd(&cmd) == FAIL) {
- diag_printf("%s: Can't send CMD18!\n", __FUNCTION__);
- esdhc_softreset(ESDHC_RESET_CMD_MSK | ESDHC_RESET_DAT_MSK);
- read_block_status = FAIL;
- } else {
- /* Call interface Data read function */
- read_block_status =
- host_data_read(dest_ptr, BLK_LEN * SectorNum);
-
- /* Comfigure command CMD12 for multi-block read stop */
- mxcmci_cmd_config(&cmd, CMD12, 0, READ, RESPONSE_48,
- DATA_PRESENT_NONE, ENABLE, ENABLE);
-
- if (host_send_cmd(&cmd) == FAIL) {
- diag_printf("%s: Can't send CMD12!\n",
- __FUNCTION__);
- esdhc_softreset(ESDHC_RESET_CMD_MSK | ESDHC_RESET_DAT_MSK);
- //read_block_status = FAIL;
- }
-
- if (read_block_status) { /* fail */
- //diag_printf("%s: Failed, read_block_status =%d\n", __FUNCTION__, read_block_status);
- /* re-transfer if data transfer error occurs */
- goto reread;
- }
-
- }
-
- }
- return read_block_status;
+ command_t cmd;
+ int len;
+ cyg_uint32 read_block_status = 0;
+ cyg_uint32 blk_len = BLK_LEN;
+ unsigned int SectorNum = 0;
+
+ /* Assing length of data to be read */
+ SectorNum = length / blk_len;
+ if ((length % blk_len) != 0)
+ SectorNum++;
+ /* hight capacity card uses sector mode */
+ if(HighCapacityCard)
+ offset = offset/512;
+
+ /* wait until in transfer mode */
+ while (mxcmci_trans_status()) {
+ hal_delay_us(5);
+ }
+
+reread:
+ /* Configure interface block and number of blocks */
+ host_cfg_block(BLK_LEN, SectorNum);
+
+ if (SectorNum == 1) {
+ //diag_printf("Send CMD17...\n");
+ /* Comfigure command CMD17 for single block read */
+ mxcmci_cmd_config(&cmd, CMD17, offset, READ, RESPONSE_48,
+ DATA_PRESENT, ENABLE, ENABLE);
+
+ if (host_send_cmd(&cmd) == FAIL) {
+ diag_printf("%s: Can't send CMD17!\n", __FUNCTION__);
+ esdhc_softreset(ESDHC_RESET_CMD_MSK |
+ ESDHC_RESET_DAT_MSK);
+ read_block_status = FAIL;
+
+ } else {
+ //diag_printf("host_data_read! dest_ptr: 0%x \n", dest_ptr);
+ /* Call interface Data read function */
+ read_block_status = host_data_read(dest_ptr, BLK_LEN);
+
+ if (read_block_status) { /* fail */
+ //diag_printf("%s: Failed, read_block_status =%d\n", __FUNCTION__, read_block_status);
+ /* re-transfer if data transfer error occurs */
+ goto reread;
+ }
+ }
+ } else { /* read multi-blocks */
+
+ /* Comfigure command CMD18 for multiple block read */
+ mxcmci_cmd_config(&cmd, CMD18, offset, READ, RESPONSE_48,
+ DATA_PRESENT, ENABLE, ENABLE);
+
+ if (host_send_cmd(&cmd) == FAIL) {
+ diag_printf("%s: Can't send CMD18!\n", __FUNCTION__);
+ esdhc_softreset(ESDHC_RESET_CMD_MSK | ESDHC_RESET_DAT_MSK);
+ read_block_status = FAIL;
+ } else {
+ /* Call interface Data read function */
+ read_block_status =
+ host_data_read(dest_ptr, BLK_LEN * SectorNum);
+
+ /* Comfigure command CMD12 for multi-block read stop */
+ mxcmci_cmd_config(&cmd, CMD12, 0, READ, RESPONSE_48,
+ DATA_PRESENT_NONE, ENABLE, ENABLE);
+
+ if (host_send_cmd(&cmd) == FAIL) {
+ diag_printf("%s: Can't send CMD12!\n",
+ __FUNCTION__);
+ esdhc_softreset(ESDHC_RESET_CMD_MSK | ESDHC_RESET_DAT_MSK);
+ //read_block_status = FAIL;
+ }
+
+ if (read_block_status) { /* fail */
+ //diag_printf("%s: Failed, read_block_status =%d\n", __FUNCTION__, read_block_status);
+ /* re-transfer if data transfer error occurs */
+ goto reread;
+ }
+
+ }
+
+ }
+ return read_block_status;
}
cyg_uint32 mmc_data_write(cyg_uint32 * src_ptr, cyg_uint32 length,
cyg_uint32 offset)
{
- command_t cmd;
- cyg_int32 len;
- cyg_uint32 blk_len = BLK_LEN;
- cyg_uint32 write_block_status = SUCCESS;
- unsigned int SectorNum;
- //int counter;
- //diag_printf("%s: src: 0x%x, offset: 0x%x, length: 0x%x\n", __FUNCTION__, (unsigned int)src_ptr, offset, length);
- /* Write data size aligned with block size */
- SectorNum = length / blk_len;
- if ((length % blk_len) != 0)
- SectorNum++;
-
- /* hight capacity card uses sector mode */
- if(HighCapacityCard)
- offset = offset/512;
-
- //need waiting until CARD out of Prg status, or will cause CMD25 timeout
- //hal_delay_us(100);
-
- //StartCounter();
-
- while (mxcmci_trans_status()) {
- hal_delay_us(2);
- }
-
- //counter = StopCounter();
- //diag_printf("counter: 0x%x\n",counter);
-
- rewrite:
- /* Configure interface block and number of blocks , SctorNum will decrease to zero after transfer */
- host_cfg_block(BLK_LEN, SectorNum);
-
- if (SectorNum == 1) {
- //diag_printf("Send CMD24...\n");
- /* Comfigure command CMD24 for single block write */
- mxcmci_cmd_config(&cmd, CMD24, offset, WRITE, RESPONSE_48,
- DATA_PRESENT, ENABLE, ENABLE);
-
- if (host_send_cmd(&cmd) == FAIL) {
- diag_printf("%s: Failed in configuring CMD24\n",
- __FUNCTION__);
- esdhc_softreset(ESDHC_RESET_CMD_MSK | ESDHC_RESET_DAT_MSK);
- write_block_status = FAIL;
-
- //hal_delay_us(1000);
- goto rewrite;
-
- } else {
- //diag_printf("Start host_data_write:\n");
- /* Call interface write read function */
- write_block_status = host_data_write(src_ptr, BLK_LEN);
- //diag_printf("0x%x\n", esdhc_base_pointer->present_state);
-
- if (write_block_status) { /* fail */
- //diag_printf("transfer failed.(0x%x)\n", esdhc_base_pointer->block_attributes);
- while (mxcmci_trans_status()) ;
- //diag_printf("%s: Failed, write_block_status=%d\n", __FUNCTION__, write_block_status);
- /* re-transfer */
- goto rewrite;
- }
-
- }
- } else { /* multi-block write */
-
- //diag_printf("Send CMD25...\n");
- /* Comfigure command CMD25 for single block write */
- mxcmci_cmd_config(&cmd, CMD25, offset, WRITE, RESPONSE_48,
- DATA_PRESENT, ENABLE, ENABLE);
-
- if (host_send_cmd(&cmd) == FAIL) {
- //diag_printf("%s: Failed in configuring CMD25\n",
- // __FUNCTION__);
- esdhc_softreset(ESDHC_RESET_CMD_MSK | ESDHC_RESET_DAT_MSK);
- write_block_status = FAIL;
- goto rewrite;
- } else {
- /* Call interface write read function */
- write_block_status =
- host_data_write(src_ptr, SectorNum * BLK_LEN);
-
- /* Comfigure command CMD12 for multi-block read stop */
- mxcmci_cmd_config(&cmd, CMD12, 0, READ, RESPONSE_48,
- DATA_PRESENT_NONE, ENABLE, ENABLE);
-
- if (host_send_cmd(&cmd) == FAIL) {
- diag_printf("%s: Can't send CMD12!\n",
- __FUNCTION__);
- esdhc_softreset(ESDHC_RESET_CMD_MSK | ESDHC_RESET_DAT_MSK);
- //write_block_status = FAIL;
- }
-
- if (write_block_status) { /* fail */
- //diag_printf("%s: Failed, write_block_status=%d\n", __FUNCTION__, write_block_status);
- while (mxcmci_trans_status());
- /* re-transfer */
- goto rewrite;
- }
- }
- }
-
- return write_block_status;
+ command_t cmd;
+ cyg_int32 len;
+ cyg_uint32 blk_len = BLK_LEN;
+ cyg_uint32 write_block_status = SUCCESS;
+ unsigned int SectorNum;
+ //int counter;
+ //diag_printf("%s: src: 0x%x, offset: 0x%x, length: 0x%x\n", __FUNCTION__, (unsigned int)src_ptr, offset, length);
+ /* Write data size aligned with block size */
+ SectorNum = length / blk_len;
+ if ((length % blk_len) != 0)
+ SectorNum++;
+
+ /* hight capacity card uses sector mode */
+ if(HighCapacityCard)
+ offset = offset/512;
+
+ //need waiting until CARD out of Prg status, or will cause CMD25 timeout
+ //hal_delay_us(100);
+
+ //StartCounter();
+
+ while (mxcmci_trans_status()) {
+ hal_delay_us(2);
+ }
+
+ //counter = StopCounter();
+ //diag_printf("counter: 0x%x\n",counter);
+
+rewrite:
+ /* Configure interface block and number of blocks , SctorNum will decrease to zero after transfer */
+ host_cfg_block(BLK_LEN, SectorNum);
+
+ if (SectorNum == 1) {
+ //diag_printf("Send CMD24...\n");
+ /* Comfigure command CMD24 for single block write */
+ mxcmci_cmd_config(&cmd, CMD24, offset, WRITE, RESPONSE_48,
+ DATA_PRESENT, ENABLE, ENABLE);
+
+ if (host_send_cmd(&cmd) == FAIL) {
+ diag_printf("%s: Failed in configuring CMD24\n",
+ __FUNCTION__);
+ esdhc_softreset(ESDHC_RESET_CMD_MSK | ESDHC_RESET_DAT_MSK);
+ write_block_status = FAIL;
+
+ //hal_delay_us(1000);
+ goto rewrite;
+
+ } else {
+ //diag_printf("Start host_data_write:\n");
+ /* Call interface write read function */
+ write_block_status = host_data_write(src_ptr, BLK_LEN);
+ //diag_printf("0x%x\n", esdhc_base_pointer->present_state);
+
+ if (write_block_status) { /* fail */
+ //diag_printf("transfer failed.(0x%x)\n", esdhc_base_pointer->block_attributes);
+ while (mxcmci_trans_status()) ;
+ //diag_printf("%s: Failed, write_block_status=%d\n", __FUNCTION__, write_block_status);
+ /* re-transfer */
+ goto rewrite;
+ }
+
+ }
+ } else { /* multi-block write */
+
+ //diag_printf("Send CMD25...\n");
+ /* Comfigure command CMD25 for single block write */
+ mxcmci_cmd_config(&cmd, CMD25, offset, WRITE, RESPONSE_48,
+ DATA_PRESENT, ENABLE, ENABLE);
+
+ if (host_send_cmd(&cmd) == FAIL) {
+ //diag_printf("%s: Failed in configuring CMD25\n",
+ // __FUNCTION__);
+ esdhc_softreset(ESDHC_RESET_CMD_MSK | ESDHC_RESET_DAT_MSK);
+ write_block_status = FAIL;
+ goto rewrite;
+ } else {
+ /* Call interface write read function */
+ write_block_status =
+ host_data_write(src_ptr, SectorNum * BLK_LEN);
+
+ /* Comfigure command CMD12 for multi-block read stop */
+ mxcmci_cmd_config(&cmd, CMD12, 0, READ, RESPONSE_48,
+ DATA_PRESENT_NONE, ENABLE, ENABLE);
+
+ if (host_send_cmd(&cmd) == FAIL) {
+ diag_printf("%s: Can't send CMD12!\n",
+ __FUNCTION__);
+ esdhc_softreset(ESDHC_RESET_CMD_MSK | ESDHC_RESET_DAT_MSK);
+ //write_block_status = FAIL;
+ }
+
+ if (write_block_status) { /* fail */
+ //diag_printf("%s: Failed, write_block_status=%d\n", __FUNCTION__, write_block_status);
+ while (mxcmci_trans_status());
+ /* re-transfer */
+ goto rewrite;
+ }
+ }
+ }
+
+ return write_block_status;
}
projects / karo-tx-redboot.git / blobdiff