//
//==========================================================================
+#include <cyg/infra/diag.h>
#include <cyg/io/mxcmci_host.h>
#include <cyg/io/mxcmci_core.h>
#include <cyg/io/mxcmci_mmc.h>
cyg_uint32 sd_init(cyg_uint32 bus_width)
{
- cyg_uint32 status = FAIL;
- cyg_uint32 bus_size = bus_width;
-
- /* Get CID number of SD Memory Card */
- if (!mxcmci_get_cid()) {
- //diag_printf("%s:mxcmci_get_cid OK!\n", __FUNCTION__);
- /* Set RCA of the SD Card */
- if (!sd_get_rca()) {
- //diag_printf("%s:sd_get_rca OK!\n", __FUNCTION__);
- /*Get CSD from Card */
- if (card_get_csd())
- return FAIL;
-
- /*Enable operating frequency */
- host_cfg_clock(OPERATING_FREQ);
-
- //diag_printf("Set SD Card in Transfer State.\n");
-
- /*Put SD Card in Transfer State */
- if (!mxcmci_trans_prepare()) {
+ cyg_uint32 status = FAIL;
+ cyg_uint32 bus_size = bus_width;
+
+ /* Get CID number of SD Memory Card */
+ if (!mxcmci_get_cid()) {
+ //diag_printf("%s:mxcmci_get_cid OK!\n", __FUNCTION__);
+ /* Set RCA of the SD Card */
+ if (!sd_get_rca()) {
+ //diag_printf("%s:sd_get_rca OK!\n", __FUNCTION__);
+ /*Get CSD from Card */
+ if (card_get_csd())
+ return FAIL;
+
+ /*Enable operating frequency */
+ host_cfg_clock(OPERATING_FREQ);
+
+ //diag_printf("Set SD Card in Transfer State.\n");
+
+ /*Put SD Card in Transfer State */
+ if (!mxcmci_trans_prepare()) {
#if 0
- if (sd_set_high_speed_mode()) {
- return FAIL;
- }
+ if (sd_set_high_speed_mode()) {
+ return FAIL;
+ }
#endif
- if (sdmmc_set_blklen(BLK_LEN))
- return FAIL;
-
- /* SD can only support 1/4 bit bitwidth, 8 bit is not supported */
- if (EIGHT == bus_width) {
- bus_width = FOUR;
- }
- if (!sd_set_bus_width(bus_width)) {
- esdhc_base_pointer->protocol_control &=
- ~(0x3 << 1);
- esdhc_base_pointer->protocol_control |=
- (bus_width / 4) << 1;
- diag_printf("Bus Width: %d\n",
- bus_width);
- status = SUCCESS;
- }
- }
- }
-
- } else {
- diag_printf("Get CID Failed.\n");
-
- }
-
- //diag_printf("%s:failed to Init SD card!\n", __FUNCTION__);
- return status;
+ if (sdmmc_set_blklen(BLK_LEN))
+ return FAIL;
+
+ /* SD can only support 1/4 bit bitwidth, 8 bit is not supported */
+ if (8 == bus_width) {
+ bus_width = 4;
+ }
+ if (!sd_set_bus_width(bus_width)) {
+ esdhc_base_pointer->protocol_control &=
+ ~(0x3 << 1);
+ esdhc_base_pointer->protocol_control |=
+ (bus_width / 4) << 1;
+ diag_printf("Bus Width: %d\n",
+ bus_width);
+ status = SUCCESS;
+ }
+ }
+ }
+
+ } else {
+ diag_printf("Get CID Failed.\n");
+
+ }
+
+ //diag_printf("%s:failed to Init SD card!\n", __FUNCTION__);
+ return status;
}
cyg_uint32 sd_voltage_validation(void)
{
- //wait max timeout (unit: ms)
- cyg_uint32 timeout = 15000;
-
- command_t cmd;
- command_response_t response;
- cyg_uint32 voltage_validation_command = 0;
- cyg_uint32 default_rca = 0;
-
- cyg_uint32 ocr_value = SD_OCR_VALUE_HV_LC; /* nirp_oct07: <- split OCR to 3.3v and 1.8v cases */
- cyg_uint32 voltage_validation = FAIL;
- cyg_uint32 interface_value = 0;
- cyg_uint32 card_usable = SUCCESS;
-
- /* Configure Command CMD8 to check for High capacity support */
- /* try 3.3V first */
- mxcmci_cmd_config(&cmd, CMD8, SD_IF_HV_COND_ARG, READ, RESPONSE_48,
- DATA_PRESENT_NONE, ENABLE, ENABLE);
-
- /* Issue Command CMD8 to SD Memory card */
- if (host_send_cmd(&cmd) == SUCCESS) { /* nirp_oct07: <- changed order of detection */
- //diag_printf("%s:CMD8 OK!\n", __FUNCTION__);
- response.format = RESPONSE_48;
- host_read_response(&response);
-
- /* Obtain Interface value from the response buffer */
- interface_value = response.cmd_rsp0;
-
- /* Check if volatge lies in range or not */
- if ((interface_value & SD_IF_HV_COND_ARG) == SD_IF_HV_COND_ARG) {
- ocr_value = ((cyg_uint32) (SD_OCR_VALUE_HV_HC) & 0xFFFFFFFF); /* nirp_oct07: <- split OCR to 3.3v and 1.8v cases */
- }
-
- /* start timer for a delay of 1.5sec, for ACMD41 */
- hal_delay_us(1500);
-
- while ((voltage_validation_command < 20)
- && (voltage_validation != SUCCESS)
- && (card_usable == SUCCESS)) {
- /* Configure CMD55 for SD card */
- /* This command expects defualt RCA 0x0000 as argument. */
- mxcmci_cmd_config(&cmd, CMD55, default_rca, READ,
- RESPONSE_48, DATA_PRESENT_NONE,
- ENABLE, ENABLE);
-
- /* Issue CMD55 to SD Memory card */
- if (host_send_cmd(&cmd) == FAIL) {
- voltage_validation = FAIL;
- //diag_printf("Send CMD55 Failed.\n");
- break;
- } else {
- /* Configure ACMD41 for SD card */
- /* This command expects operating voltage range as argument. */
- /* CODE REVIEW START: Need to check why BUSY was expected */
- /* INTERNAL CODE REVIEW: Accepted - to fix original code if needed */
- /* nirp: changed RESPONSE_48_CHECK_BUSY to RESPONSE_48 */
- /* nirp_oct03: why with busy again? ACMD41 doesn't hold busy line */
- mxcmci_cmd_config(&cmd, ACMD41, ocr_value, READ,
- RESPONSE_48, DATA_PRESENT_NONE, DISABLE,
- DISABLE);
-
- /* Issue ACMD41 to SD Memory card to determine OCR value */
- if (host_send_cmd(&cmd) == FAIL) {
- voltage_validation = FAIL;
- diag_printf("Send CMD41 Failed.\n");
- break;
- } else {
- /* Read Response from CMDRSP0 Register */
- response.format = RESPONSE_48;
- host_read_response(&response);
-
- /* Obtain OCR Values from the response */
- /* Obtain OCR value from the response buffer */
- ocr_value = response.cmd_rsp0;
-
- /* Check if card busy bit is cleared or not */
- if (!(response.cmd_rsp0 & CARD_BUSY_BIT)) {
- /* Iterate One more time */
- voltage_validation_command++;
- } else {
-
- /*CODE REVIEW START: Update code and check only bit 30, HC or LC card type. All voltage bits needs to be masked. */
- /* INTERNAL CODE REVIEW: Accepted - need fix the code accordingly */
- /* nirp: It may be better to check the actual power supply voltage - requiring the entire range (0xff8000) may fail the sequence even if the device can be supported */
- /*CODE REVIEW END: */
-
- if ((response.cmd_rsp0 & SD_OCR_HC_RES) == SD_OCR_HC_RES) {
- address_mode = SECT_MODE;
- voltage_validation = SUCCESS;
- }
- /* CODE REVIEW 3: (same as above) Check is logically correct, but seems redundent.
- Anything that fails the HC check, is assumed Low Capacity */
- /* nirp_oct03: this can be just an "else". the LC macro is 0 anyway,
- and anything not HC is LC by default */
- /* removed else if */
- else {
- address_mode = BYTE_MODE;
- voltage_validation = SUCCESS;
- }
- }
- }
- }
-
- hal_delay_us(1000);
- }
-
- if (voltage_validation == FAIL) {
- card_usable = FAIL;
- }
-
- } else {
- /*3.3v test failed, try to test 1.8v mode! */
- mxcmci_cmd_config(&cmd, CMD8, SD_IF_LV_COND_ARG, READ,
- RESPONSE_48, DATA_PRESENT_NONE, ENABLE,
- ENABLE);
-
- /* Issue Command CMD8 to SD Memory card */
- if (host_send_cmd(&cmd) == FAIL) {
- //diag_printf("%s:CMD8 for 1.8v failed!\n", __FUNCTION__);
- /* nirp_oct07: CMD8 failed both in 3.3 and in 1.8v, try SD 1.x case - no CMD8, LC, 3.3v only */
- ocr_value = ((cyg_uint32) (SD_OCR_VALUE_HV_LC) & 0xFFFFFFFF); /* nirp_oct07: <- changed order of detection */
- } else {
- //diag_printf("%s:CMD8 for 1.8v OK!\n", __FUNCTION__);
- response.format = RESPONSE_48;
- host_read_response(&response);
-
- /* Obtain Interface value from the response buffer */
- interface_value = response.cmd_rsp0;
-
- /* Check if volatge lies in range or not */
- if ((interface_value & SD_IF_LV_COND_ARG) == SD_IF_LV_COND_ARG) {
- ocr_value = ((cyg_uint32) (SD_OCR_VALUE_LV_HC) & 0xFFFFFFFF); /* nirp_oct07: <- split OCR to 3.3v and 1.8v cases */
- }
- /* nirp_oct07: otherwise, try with HV_LC settings (set at function start) */
- }
-
- }
-
- /* start timer for a delay of 1.5sec, for ACMD41 */
- hal_delay_us(1500);
-
- /* nirp_oct03: MMCSD_READY_TIMEOUT too long.
- ACMD41 also takes longer than CMD1 (twice - ~200 clocks for CMD55+resp+CMD41+resp */
- /* In any case ,ACMD 41 will loop not more than 1.5 sec */
- while ((voltage_validation_command < 20)
- && (voltage_validation != SUCCESS) && (card_usable == SUCCESS)) {
- /* Configure CMD55 for SD card */
- /* This command expects defualt RCA 0x0000 as argument. */
- mxcmci_cmd_config(&cmd, CMD55, default_rca, READ, RESPONSE_48,
- DATA_PRESENT_NONE, ENABLE, ENABLE);
-
- /* Issue CMD55 to SD Memory card */
- if (host_send_cmd(&cmd) == FAIL) {
- voltage_validation = FAIL;
- //diag_printf("Send CMD55 Failed!\n");
- break;
- } else {
- /* Configure ACMD41 for SD card */
- /* This command expects operating voltage range as argument. */
- /* CODE REVIEW START: Need to check why BUSY was expected */
- /* INTERNAL CODE REVIEW: Accepted - to fix original code if needed */
- /* nirp: changed RESPONSE_48_CHECK_BUSY to RESPONSE_48 */
- /* nirp_oct03: why with busy again? ACMD41 doesn't hold busy line */
- mxcmci_cmd_config(&cmd, ACMD41, ocr_value, READ,
- RESPONSE_48, DATA_PRESENT_NONE,
- DISABLE, DISABLE);
-
- /* CODE REVIEW END: */
-
- /* Issue ACMD41 to SD Memory card to determine OCR value */
- if (host_send_cmd(&cmd) == FAIL) {
- voltage_validation = FAIL;
- diag_printf("Send ACMD41 Failed!\n");
- break;
- } else {
- /* Read Response from CMDRSP0 Register */
- response.format = RESPONSE_48;
- host_read_response(&response);
-
- /* Obtain OCR Values from the response */
- /* Obtain OCR value from the response buffer
- */
- ocr_value = response.cmd_rsp0;
-
- /* Check if card busy bit is cleared or not */
- if (!(response.cmd_rsp0 & CARD_BUSY_BIT)) {
- /* Iterate One more time */
- voltage_validation_command++;
- } else {
- /*CODE REVIEW START: Update code and check only bit 30, HC or LC card type. All voltage bits needs to be masked. */
- /* INTERNAL CODE REVIEW: Accepted - need fix the code accordingly */
- /* nirp: It may be better to check the actual power supply voltage - requiring the entire range (0xff8000) may fail the sequence even if the device can be supported */
- /*CODE REVIEW END: */
-
- if ((response.cmd_rsp0 & SD_OCR_HC_RES) == SD_OCR_HC_RES) {
- address_mode = SECT_MODE;
- voltage_validation = SUCCESS;
- }
- /* CODE REVIEW 3: (same as above) Check is logically correct, but seems redundent.
- Anything that fails the HC check, is assumed Low Capacity */
- /* nirp_oct03: this can be just an "else". the LC macro is 0 anyway,
- and anything not HC is LC by default */
- else {
- address_mode = BYTE_MODE;
- voltage_validation = SUCCESS;
- }
- }
- }
-
- }
-
- hal_delay_us(1000);
-
- }
-
- return voltage_validation;
+ //wait max timeout (unit: ms)
+ cyg_uint32 timeout = 15000;
+
+ command_t cmd;
+ command_response_t response;
+ cyg_uint32 voltage_validation_command = 0;
+ cyg_uint32 default_rca = 0;
+
+ cyg_uint32 ocr_value = SD_OCR_VALUE_HV_LC; /* nirp_oct07: <- split OCR to 3.3v and 1.8v cases */
+ cyg_uint32 voltage_validation = FAIL;
+ cyg_uint32 interface_value = 0;
+ cyg_uint32 card_usable = SUCCESS;
+
+ /* Configure Command CMD8 to check for High capacity support */
+ /* try 3.3V first */
+ mxcmci_cmd_config(&cmd, CMD8, SD_IF_HV_COND_ARG, READ, RESPONSE_48,
+ DATA_PRESENT_NONE, ENABLE, ENABLE);
+
+ /* Issue Command CMD8 to SD Memory card */
+ if (host_send_cmd(&cmd) == SUCCESS) { /* nirp_oct07: <- changed order of detection */
+ //diag_printf("%s:CMD8 OK!\n", __FUNCTION__);
+ response.format = RESPONSE_48;
+ host_read_response(&response);
+
+ /* Obtain Interface value from the response buffer */
+ interface_value = response.cmd_rsp0;
+
+ /* Check if volatge lies in range or not */
+ if ((interface_value & SD_IF_HV_COND_ARG) == SD_IF_HV_COND_ARG) {
+ ocr_value = ((cyg_uint32) (SD_OCR_VALUE_HV_HC) & 0xFFFFFFFF); /* nirp_oct07: <- split OCR to 3.3v and 1.8v cases */
+ }
+
+ /* start timer for a delay of 1.5sec, for ACMD41 */
+ hal_delay_us(1500);
+
+ while ((voltage_validation_command < 20)
+ && (voltage_validation != SUCCESS)
+ && (card_usable == SUCCESS)) {
+ /* Configure CMD55 for SD card */
+ /* This command expects defualt RCA 0x0000 as argument. */
+ mxcmci_cmd_config(&cmd, CMD55, default_rca, READ,
+ RESPONSE_48, DATA_PRESENT_NONE,
+ ENABLE, ENABLE);
+
+ /* Issue CMD55 to SD Memory card */
+ if (host_send_cmd(&cmd) == FAIL) {
+ voltage_validation = FAIL;
+ //diag_printf("Send CMD55 Failed.\n");
+ break;
+ } else {
+ /* Configure ACMD41 for SD card */
+ /* This command expects operating voltage range as argument. */
+ /* CODE REVIEW START: Need to check why BUSY was expected */
+ /* INTERNAL CODE REVIEW: Accepted - to fix original code if needed */
+ /* nirp: changed RESPONSE_48_CHECK_BUSY to RESPONSE_48 */
+ /* nirp_oct03: why with busy again? ACMD41 doesn't hold busy line */
+ mxcmci_cmd_config(&cmd, ACMD41, ocr_value, READ,
+ RESPONSE_48, DATA_PRESENT_NONE, DISABLE,
+ DISABLE);
+
+ /* Issue ACMD41 to SD Memory card to determine OCR value */
+ if (host_send_cmd(&cmd) == FAIL) {
+ voltage_validation = FAIL;
+ diag_printf("Send CMD41 Failed.\n");
+ break;
+ } else {
+ /* Read Response from CMDRSP0 Register */
+ response.format = RESPONSE_48;
+ host_read_response(&response);
+
+ /* Obtain OCR Values from the response */
+ /* Obtain OCR value from the response buffer */
+ ocr_value = response.cmd_rsp0;
+
+ /* Check if card busy bit is cleared or not */
+ if (!(response.cmd_rsp0 & CARD_BUSY_BIT)) {
+ /* Iterate One more time */
+ voltage_validation_command++;
+ } else {
+
+ /*CODE REVIEW START: Update code and check only bit 30, HC or LC card type. All voltage bits needs to be masked. */
+ /* INTERNAL CODE REVIEW: Accepted - need fix the code accordingly */
+ /* nirp: It may be better to check the actual power supply voltage - requiring the entire range (0xff8000) may fail the sequence even if the device can be supported */
+ /*CODE REVIEW END: */
+
+ if ((response.cmd_rsp0 & SD_OCR_HC_RES) == SD_OCR_HC_RES) {
+ address_mode = SECT_MODE;
+ voltage_validation = SUCCESS;
+ }
+ /* CODE REVIEW 3: (same as above) Check is logically correct, but seems redundent.
+ Anything that fails the HC check, is assumed Low Capacity */
+ /* nirp_oct03: this can be just an "else". the LC macro is 0 anyway,
+ and anything not HC is LC by default */
+ /* removed else if */
+ else {
+ address_mode = BYTE_MODE;
+ voltage_validation = SUCCESS;
+ }
+ }
+ }
+ }
+
+ hal_delay_us(1000);
+ }
+
+ if (voltage_validation == FAIL) {
+ card_usable = FAIL;
+ }
+
+ } else {
+ /*3.3v test failed, try to test 1.8v mode! */
+ mxcmci_cmd_config(&cmd, CMD8, SD_IF_LV_COND_ARG, READ,
+ RESPONSE_48, DATA_PRESENT_NONE, ENABLE,
+ ENABLE);
+
+ /* Issue Command CMD8 to SD Memory card */
+ if (host_send_cmd(&cmd) == FAIL) {
+ //diag_printf("%s:CMD8 for 1.8v failed!\n", __FUNCTION__);
+ /* nirp_oct07: CMD8 failed both in 3.3 and in 1.8v, try SD 1.x case - no CMD8, LC, 3.3v only */
+ ocr_value = ((cyg_uint32) (SD_OCR_VALUE_HV_LC) & 0xFFFFFFFF); /* nirp_oct07: <- changed order of detection */
+ } else {
+ //diag_printf("%s:CMD8 for 1.8v OK!\n", __FUNCTION__);
+ response.format = RESPONSE_48;
+ host_read_response(&response);
+
+ /* Obtain Interface value from the response buffer */
+ interface_value = response.cmd_rsp0;
+
+ /* Check if volatge lies in range or not */
+ if ((interface_value & SD_IF_LV_COND_ARG) == SD_IF_LV_COND_ARG) {
+ ocr_value = ((cyg_uint32) (SD_OCR_VALUE_LV_HC) & 0xFFFFFFFF); /* nirp_oct07: <- split OCR to 3.3v and 1.8v cases */
+ }
+ /* nirp_oct07: otherwise, try with HV_LC settings (set at function start) */
+ }
+
+ }
+
+ /* start timer for a delay of 1.5sec, for ACMD41 */
+ hal_delay_us(1500);
+
+ /* nirp_oct03: MMCSD_READY_TIMEOUT too long.
+ ACMD41 also takes longer than CMD1 (twice - ~200 clocks for CMD55+resp+CMD41+resp */
+ /* In any case ,ACMD 41 will loop not more than 1.5 sec */
+ while ((voltage_validation_command < 20)
+ && (voltage_validation != SUCCESS) && (card_usable == SUCCESS)) {
+ /* Configure CMD55 for SD card */
+ /* This command expects defualt RCA 0x0000 as argument. */
+ mxcmci_cmd_config(&cmd, CMD55, default_rca, READ, RESPONSE_48,
+ DATA_PRESENT_NONE, ENABLE, ENABLE);
+
+ /* Issue CMD55 to SD Memory card */
+ if (host_send_cmd(&cmd) == FAIL) {
+ voltage_validation = FAIL;
+ //diag_printf("Send CMD55 Failed!\n");
+ break;
+ } else {
+ /* Configure ACMD41 for SD card */
+ /* This command expects operating voltage range as argument. */
+ /* CODE REVIEW START: Need to check why BUSY was expected */
+ /* INTERNAL CODE REVIEW: Accepted - to fix original code if needed */
+ /* nirp: changed RESPONSE_48_CHECK_BUSY to RESPONSE_48 */
+ /* nirp_oct03: why with busy again? ACMD41 doesn't hold busy line */
+ mxcmci_cmd_config(&cmd, ACMD41, ocr_value, READ,
+ RESPONSE_48, DATA_PRESENT_NONE,
+ DISABLE, DISABLE);
+
+ /* CODE REVIEW END: */
+
+ /* Issue ACMD41 to SD Memory card to determine OCR value */
+ if (host_send_cmd(&cmd) == FAIL) {
+ voltage_validation = FAIL;
+ diag_printf("Send ACMD41 Failed!\n");
+ break;
+ } else {
+ /* Read Response from CMDRSP0 Register */
+ response.format = RESPONSE_48;
+ host_read_response(&response);
+
+ /* Obtain OCR Values from the response */
+ /* Obtain OCR value from the response buffer
+ */
+ ocr_value = response.cmd_rsp0;
+
+ /* Check if card busy bit is cleared or not */
+ if (!(response.cmd_rsp0 & CARD_BUSY_BIT)) {
+ /* Iterate One more time */
+ voltage_validation_command++;
+ } else {
+ /*CODE REVIEW START: Update code and check only bit 30, HC or LC card type. All voltage bits needs to be masked. */
+ /* INTERNAL CODE REVIEW: Accepted - need fix the code accordingly */
+ /* nirp: It may be better to check the actual power supply voltage - requiring the entire range (0xff8000) may fail the sequence even if the device can be supported */
+ /*CODE REVIEW END: */
+
+ if ((response.cmd_rsp0 & SD_OCR_HC_RES) == SD_OCR_HC_RES) {
+ address_mode = SECT_MODE;
+ voltage_validation = SUCCESS;
+ }
+ /* CODE REVIEW 3: (same as above) Check is logically correct, but seems redundent.
+ Anything that fails the HC check, is assumed Low Capacity */
+ /* nirp_oct03: this can be just an "else". the LC macro is 0 anyway,
+ and anything not HC is LC by default */
+ else {
+ address_mode = BYTE_MODE;
+ voltage_validation = SUCCESS;
+ }
+ }
+ }
+
+ }
+
+ hal_delay_us(1000);
+
+ }
+
+ return voltage_validation;
}
static cyg_uint32 sd_get_rca(void)
{
- command_t cmd;
- cyg_uint32 card_state = 0;
- cyg_uint32 rca_request = 0;
- command_response_t response;
-
- /* Configure CMD3 for MMC card */
- /* 32bit card address is expected as Argument */
- mxcmci_cmd_config(&cmd, CMD3, NO_ARG, READ, RESPONSE_48,
- DATA_PRESENT_NONE, ENABLE, ENABLE);
-
- /* Get relative address of the card */
-
- if (host_send_cmd(&cmd) == FAIL) {
- rca_request = FAIL;
- diag_printf("Send CMD3 Failed.\n");
- } else {
- /* Read Command response */
- response.format = RESPONSE_48;
- host_read_response(&response);
-
- Card_rca = ((cyg_uint32) (response.cmd_rsp0 >> RCA_SHIFT));
-
- card_state = CURR_CARD_STATE(response.cmd_rsp0);
-
- if (card_state == IDENT) {
- rca_request = SUCCESS;
- } else {
- rca_request = FAIL;
- diag_printf("Get RCA Failed.\n");
- }
- }
-
- return rca_request;
+ command_t cmd;
+ cyg_uint32 card_state = 0;
+ cyg_uint32 rca_request = 0;
+ command_response_t response;
+
+ /* Configure CMD3 for MMC card */
+ /* 32bit card address is expected as Argument */
+ mxcmci_cmd_config(&cmd, CMD3, NO_ARG, READ, RESPONSE_48,
+ DATA_PRESENT_NONE, ENABLE, ENABLE);
+
+ /* Get relative address of the card */
+
+ if (host_send_cmd(&cmd) == FAIL) {
+ rca_request = FAIL;
+ diag_printf("Send CMD3 Failed.\n");
+ } else {
+ /* Read Command response */
+ response.format = RESPONSE_48;
+ host_read_response(&response);
+
+ Card_rca = ((cyg_uint32) (response.cmd_rsp0 >> RCA_SHIFT));
+
+ card_state = CURR_CARD_STATE(response.cmd_rsp0);
+
+ if (card_state == IDENT) {
+ rca_request = SUCCESS;
+ } else {
+ rca_request = FAIL;
+ diag_printf("Get RCA Failed.\n");
+ }
+ }
+
+ return rca_request;
}
static cyg_uint32 sd_get_bit_mode_support(void)
{
- command_t cmd;
- cyg_uint32 rd_data_buff[128];
- cyg_uint32 bit4_mode_support;
- command_response_t response;
- cyg_uint32 card_address = (Card_rca << RCA_SHIFT);
-
- /* Configure CMD55 for SD card */
- /* This command expects RCA as argument. */
- mxcmci_cmd_config(&cmd, CMD55, card_address, READ, RESPONSE_48,
- DATA_PRESENT_NONE, ENABLE, ENABLE);
-
- /* Issue CMD55 to SD Memory card */
- if (host_send_cmd(&cmd) == FAIL) {
- bit4_mode_support = 0;
- } else {
- /* Read Command response */
- response.format = RESPONSE_48;
- host_read_response(&response);
-
- /* Afetr giving ACMD Command, the R1 response should have
- * STATUS_APP_CMD set
- */
- if (response.cmd_rsp0 & SD_R1_STATUS_APP_CMD_MSK) {
-
- /* Configure ACMD51 for SD card */
- /* This command expects No argument. */
-
- mxcmci_cmd_config(&cmd, ACMD51, NO_ARG, READ,
- RESPONSE_48, DATA_PRESENT, ENABLE,
- ENABLE);
-
- /* Issue ACMD51 to SD Memory card */
- if (host_send_cmd(&cmd) == FAIL) {
- bit4_mode_support = 0;
- } else {
- /* Read Response from e-SDHC buffer */
- host_data_read(rd_data_buff, 512);
-
- /* Check for bus width supported */
- bit4_mode_support = (rd_data_buff[SD_BUS_WIDTH_OFFSET] & BIT_MODE_4_SUPPORT);
-
- if (bit4_mode_support) {
- bit4_mode_support = BIT_4_MODE;
- }
-
- }
- }
- }
-
- return bit4_mode_support;
+ command_t cmd;
+ cyg_uint32 rd_data_buff[128];
+ cyg_uint32 bit4_mode_support;
+ command_response_t response;
+ cyg_uint32 card_address = (Card_rca << RCA_SHIFT);
+
+ /* Configure CMD55 for SD card */
+ /* This command expects RCA as argument. */
+ mxcmci_cmd_config(&cmd, CMD55, card_address, READ, RESPONSE_48,
+ DATA_PRESENT_NONE, ENABLE, ENABLE);
+
+ /* Issue CMD55 to SD Memory card */
+ if (host_send_cmd(&cmd) == FAIL) {
+ bit4_mode_support = 0;
+ } else {
+ /* Read Command response */
+ response.format = RESPONSE_48;
+ host_read_response(&response);
+
+ /* Afetr giving ACMD Command, the R1 response should have
+ * STATUS_APP_CMD set
+ */
+ if (response.cmd_rsp0 & SD_R1_STATUS_APP_CMD_MSK) {
+
+ /* Configure ACMD51 for SD card */
+ /* This command expects No argument. */
+
+ mxcmci_cmd_config(&cmd, ACMD51, NO_ARG, READ,
+ RESPONSE_48, DATA_PRESENT, ENABLE,
+ ENABLE);
+
+ /* Issue ACMD51 to SD Memory card */
+ if (host_send_cmd(&cmd) == FAIL) {
+ bit4_mode_support = 0;
+ } else {
+ /* Read Response from e-SDHC buffer */
+ host_data_read(rd_data_buff, 512);
+
+ /* Check for bus width supported */
+ bit4_mode_support = (rd_data_buff[SD_BUS_WIDTH_OFFSET] & BIT_MODE_4_SUPPORT);
+
+ if (bit4_mode_support) {
+ bit4_mode_support = BIT_4_MODE;
+ }
+
+ }
+ }
+ }
+
+ return bit4_mode_support;
}
static cyg_uint32 sd_set_bus_width(cyg_uint32 bus_width)
{
- command_t cmd;
- cyg_uint32 set_bus_width_status = 0;
- command_response_t response;
- cyg_uint32 card_address = (Card_rca << RCA_SHIFT);
-
- if ((bus_width == FOUR) || (bus_width == ONE)) {
- /* Configure CMD55 for SD card */
- /* This command expects RCA as argument. */
-
- mxcmci_cmd_config(&cmd, CMD55, card_address, READ, RESPONSE_48,
- DATA_PRESENT_NONE, ENABLE, ENABLE);
-
- /* Issue CMD55 to SD Memory card */
- if (host_send_cmd(&cmd) == FAIL) {
- set_bus_width_status = FAIL;
- } else {
- /* Read Command response */
- response.format = RESPONSE_48;
- host_read_response(&response);
-
- /* Afetr giving ACMD Command, the R1 response should have
- * STATUS_APP_CMD set
- */
- if (response.cmd_rsp0 & SD_R1_STATUS_APP_CMD_MSK) {
- bus_width = (bus_width >> ONE);
-
- /* Configure ACMD6 for SD card */
- mxcmci_cmd_config(&cmd, ACMD6, bus_width, READ,
- RESPONSE_48,
- DATA_PRESENT_NONE, ENABLE,
- ENABLE);
-
- /* Issue ACMD6 to SD Memory card */
- if (host_send_cmd(&cmd) == FAIL) {
- set_bus_width_status = FAIL;
- } else {
- set_bus_width_status = SUCCESS;
- }
- }
- }
- }
-
- return set_bus_width_status;
+ command_t cmd;
+ cyg_uint32 set_bus_width_status = 0;
+ command_response_t response;
+ cyg_uint32 card_address = (Card_rca << RCA_SHIFT);
+
+ if ((bus_width == 4) || (bus_width == 1)) {
+ /* Configure CMD55 for SD card */
+ /* This command expects RCA as argument. */
+
+ mxcmci_cmd_config(&cmd, CMD55, card_address, READ, RESPONSE_48,
+ DATA_PRESENT_NONE, ENABLE, ENABLE);
+
+ /* Issue CMD55 to SD Memory card */
+ if (host_send_cmd(&cmd) == FAIL) {
+ set_bus_width_status = FAIL;
+ } else {
+ /* Read Command response */
+ response.format = RESPONSE_48;
+ host_read_response(&response);
+
+ /* Afetr giving ACMD Command, the R1 response should have
+ * STATUS_APP_CMD set
+ */
+ if (response.cmd_rsp0 & SD_R1_STATUS_APP_CMD_MSK) {
+ bus_width = (bus_width >> ONE);
+
+ /* Configure ACMD6 for SD card */
+ mxcmci_cmd_config(&cmd, ACMD6, bus_width, READ,
+ RESPONSE_48,
+ DATA_PRESENT_NONE, ENABLE,
+ ENABLE);
+
+ /* Issue ACMD6 to SD Memory card */
+ if (host_send_cmd(&cmd) == FAIL) {
+ set_bus_width_status = FAIL;
+ } else {
+ set_bus_width_status = SUCCESS;
+ }
+ }
+ }
+ }
+
+ return set_bus_width_status;
}
/*==========================================================================
cyg_uint32 esd_set_boot_partition(cyg_uint32 *src_ptr, cyg_uint32 length)
{
- command_t cmd;
- cyg_uint32 set_partition_status = FAIL;
- command_response_t response;
- cyg_uint8 response_data[512];
- cyg_uint32 *response_pointer = (cyg_uint32 *) response_data;
- cyg_uint32 card_address = (Card_rca << RCA_SHIFT);
- cyg_uint32 card_state;
-
- /* Send CMD43 to select partition PARTITION1 active */
- mxcmci_cmd_config(&cmd, CMD43,
- 0x1<<24,
- READ,
- RESPONSE_48,
- DATA_PRESENT_NONE,
- ENABLE,
- ENABLE);
-
- if(host_send_cmd(&cmd) == FAIL) {
- //diag_printf("%s: Send CMD43 Failed.\n", __FUNCTION__);
- return 1;
- }
-
- set_partition_status = mmc_data_write (src_ptr, length, 0);
- if(set_partition_status) {
- return 1; /* failed */
- }
-
- return 0;
+ command_t cmd;
+ cyg_uint32 set_partition_status = FAIL;
+ command_response_t response;
+ cyg_uint8 response_data[512];
+ cyg_uint32 *response_pointer = (cyg_uint32 *) response_data;
+ cyg_uint32 card_address = (Card_rca << RCA_SHIFT);
+ cyg_uint32 card_state;
+
+ /* Send CMD43 to select partition PARTITION1 active */
+ mxcmci_cmd_config(&cmd, CMD43,
+ 0x1<<24,
+ READ,
+ RESPONSE_48,
+ DATA_PRESENT_NONE,
+ ENABLE,
+ ENABLE);
+
+ if(host_send_cmd(&cmd) == FAIL) {
+ //diag_printf("%s: Send CMD43 Failed.\n", __FUNCTION__);
+ return 1;
+ }
+
+ set_partition_status = mmc_data_write (src_ptr, length, 0);
+ if(set_partition_status) {
+ return 1; /* failed */
+ }
+
+ return 0;
}
static cyg_uint32 sd_set_high_speed_mode(void)
{
- command_t cmd;
- cyg_uint32 status = FAIL;
- command_response_t response;
-
- /* Configure CMD6 for SD card */
- mxcmci_cmd_config(&cmd, CMD6, 0xfffff1, READ, RESPONSE_48,
- DATA_PRESENT_NONE, ENABLE, ENABLE);
-
- /* Issue CMD6 to SD Memory card */
- if (host_send_cmd(&cmd) == FAIL) {
- status = FAIL;
- diag_printf("Send CMD6 Failed.\n");
- return FAIL;
- } else {
- hal_delay_us(1000);
- status = SUCCESS;
-
- }
-
- mxcmci_cmd_config(&cmd, CMD6, 0x80fffff1, READ, RESPONSE_48,
- DATA_PRESENT_NONE, ENABLE, ENABLE);
-
- /* Issue CMD6 to SD Memory card */
- if (host_send_cmd(&cmd) == FAIL) {
- status = FAIL;
- diag_printf("Send CMD6 Failed.\n");
- } else {
- /* wait until in transfer mode */
- while (mxcmci_trans_status()) {
- hal_delay_us(5);
- }
-
- status = SUCCESS;
- }
-
- return status;
+ command_t cmd;
+ cyg_uint32 status = FAIL;
+ command_response_t response;
+
+ /* Configure CMD6 for SD card */
+ mxcmci_cmd_config(&cmd, CMD6, 0xfffff1, READ, RESPONSE_48,
+ DATA_PRESENT_NONE, ENABLE, ENABLE);
+
+ /* Issue CMD6 to SD Memory card */
+ if (host_send_cmd(&cmd) == FAIL) {
+ status = FAIL;
+ diag_printf("Send CMD6 Failed.\n");
+ return FAIL;
+ } else {
+ hal_delay_us(1000);
+ status = SUCCESS;
+
+ }
+
+ mxcmci_cmd_config(&cmd, CMD6, 0x80fffff1, READ, RESPONSE_48,
+ DATA_PRESENT_NONE, ENABLE, ENABLE);
+
+ /* Issue CMD6 to SD Memory card */
+ if (host_send_cmd(&cmd) == FAIL) {
+ status = FAIL;
+ diag_printf("Send CMD6 Failed.\n");
+ } else {
+ /* wait until in transfer mode */
+ while (mxcmci_trans_status()) {
+ hal_delay_us(5);
+ }
+
+ status = SUCCESS;
+ }
+
+ return status;
}
/* end of mxcmic_sd.c */
projects / karo-tx-redboot.git / blobdiff