kopia lustrzana https://github.com/espressif/esp-idf
Merge branch 'bugfix/sdspi_acmd41_arg' into 'master'
fix(sdmmc): fixes for card initialization (ACMD41) Closes IDFGH-4892 and IDFGH-9144 See merge request espressif/esp-idf!29298pull/13309/head
commit
293f529cd7
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@ -29,17 +29,27 @@ esp_err_t sdmmc_init_ocr(sdmmc_card_t* card)
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*/
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uint32_t host_ocr = get_host_ocr(card->host.io_voltage);
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if ((card->ocr & SD_OCR_SDHC_CAP) != 0) {
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host_ocr |= SD_OCR_SDHC_CAP;
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/* In SPI mode, the only non-zero bit of ACMD41 is HCS (bit 30)
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* In SD mode, bits 23:8 contain the supported voltage mask
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*/
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uint32_t acmd41_arg = 0;
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if (!host_is_spi(card)) {
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acmd41_arg = host_ocr;
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}
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if ((card->ocr & SD_OCR_SDHC_CAP) != 0) {
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acmd41_arg |= SD_OCR_SDHC_CAP;
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}
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/* Send SEND_OP_COND (ACMD41) command to the card until it becomes ready. */
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err = sdmmc_send_cmd_send_op_cond(card, host_ocr, &card->ocr);
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err = sdmmc_send_cmd_send_op_cond(card, acmd41_arg, &card->ocr);
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/* If time-out, re-try send_op_cond as MMC */
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if (err == ESP_ERR_TIMEOUT && !host_is_spi(card)) {
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ESP_LOGD(TAG, "send_op_cond timeout, trying MMC");
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card->is_mmc = 1;
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err = sdmmc_send_cmd_send_op_cond(card, host_ocr, &card->ocr);
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err = sdmmc_send_cmd_send_op_cond(card, acmd41_arg, &card->ocr);
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}
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if (err != ESP_OK) {
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@ -48,7 +48,7 @@
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/* Maximum retry/error count for SEND_OP_COND (CMD1).
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* These are somewhat arbitrary, values originate from OpenBSD driver.
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*/
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#define SDMMC_SEND_OP_COND_MAX_RETRIES 100
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#define SDMMC_SEND_OP_COND_MAX_RETRIES 300
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#define SDMMC_SEND_OP_COND_MAX_ERRORS 3
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/* supported arguments for erase command 38 */
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