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Merge branch 'bugfix/sdspi_acmd41_arg_v5.2' into 'release/v5.2'

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fix(sdmmc): fixes for card initialization (ACMD41) (v5.2)

See merge request espressif/esp-idf!29376
This commit is contained in:
Jiang Jiang Jian 2024-03-11 10:30:52 +08:00
commit 0a83a253ca
2 changed files with 15 additions and 5 deletions
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18
components/sdmmc/sdmmc_common.c
View File

@ -29,17 +29,27 @@ esp_err_t sdmmc_init_ocr(sdmmc_card_t* card)
*/
uint32_t host_ocr = get_host_ocr(card->host.io_voltage);
if ((card->ocr & SD_OCR_SDHC_CAP) != 0) {
host_ocr |= SD_OCR_SDHC_CAP;
/* In SPI mode, the only non-zero bit of ACMD41 is HCS (bit 30)
* In SD mode, bits 23:8 contain the supported voltage mask
*/
uint32_t acmd41_arg = 0;
if (!host_is_spi(card)) {
acmd41_arg = host_ocr;
}
if ((card->ocr & SD_OCR_SDHC_CAP) != 0) {
acmd41_arg |= SD_OCR_SDHC_CAP;
}
/* Send SEND_OP_COND (ACMD41) command to the card until it becomes ready. */
err = sdmmc_send_cmd_send_op_cond(card, host_ocr, &card->ocr);
err = sdmmc_send_cmd_send_op_cond(card, acmd41_arg, &card->ocr);
/* If time-out, re-try send_op_cond as MMC */
if (err == ESP_ERR_TIMEOUT && !host_is_spi(card)) {
ESP_LOGD(TAG, "send_op_cond timeout, trying MMC");
card->is_mmc = 1;
err = sdmmc_send_cmd_send_op_cond(card, host_ocr, &card->ocr);
err = sdmmc_send_cmd_send_op_cond(card, acmd41_arg, &card->ocr);
}
if (err != ESP_OK) {

2
components/sdmmc/sdmmc_common.h
View File

@ -48,7 +48,7 @@
/* Maximum retry/error count for SEND_OP_COND (CMD1).
* These are somewhat arbitrary, values originate from OpenBSD driver.
*/
#define SDMMC_SEND_OP_COND_MAX_RETRIES 100
#define SDMMC_SEND_OP_COND_MAX_RETRIES 300
#define SDMMC_SEND_OP_COND_MAX_ERRORS 3
/* supported arguments for erase command 38 */