Previous commit has enabled buffers in PSRAM for ESP32-P4. But this
also caused a regression for ESP32-S3, where PSRAM is not DMA capable.
This commit re-introduces the check for esp_ptr_external_ram in case
SOC_SDMMC_PSRAM_DMA_CAPABLE is not set.
According to the application note in SD Card Physical Specification:
> The host shall set ACMD41 timeout more than 1 second to abort repeat
of issuing ACMD41 when the card does not indicate ready. The timeout
count starts from the first ACMD41 which is set voltage window
in the argument.
Previously, the timeout was exactly one second, and this caused
certain larger-capacity cards to "time out", because they couldn't
finish initialization process in time.
ACMD41 argument is different between SD mode and SPI mode.
In SPI mode, the only non-zero bit may be the HCS bit. Unlike the SD
mode, the bits reflecting the host's OCR should be zero.
Previously, we used to set these bits the same way as for the SD mode.
This has caused certain cards to fail initializing, apparently their
controllers have checked the ACMD41 argument more strictly and refused
to finish initialization, resulting in an error such as
sdmmc_common: sdmmc_init_ocr: send_op_cond (1) returned 0x107
(Note that this error may have other causes than the one fixed in
this commit. For example, if the card doesn't have a sufficient and
stable power supply, it may also fail to complete the internal
initialization process, and will never clear the busy flag in R1
response.)
Closes https://github.com/espressif/esp-idf/issues/6686
Closes https://github.com/espressif/esp-idf/issues/10542
* All components which won't build (yet) on Linux are excluded.
This enables switching to Linux in an application without
explicitly setting COMPONENTS to main in the main
CMakeLists.txt.
* ESP Timer provides headers for Linux now
* automatically disabling LWIP in Kconfig if it is not available
doc(linux): brought section
"Component Linux/Mock Support Overview" up to date
- split test cases into separate files
- added a component with information about dev. boards
- added a console application to run the tests
- added commands for lower level hacking/experimentation
sdmmc, sdspi: fixes related to status checks, R1b response support, erase fix for SPI mode, fix for erase timeout calculation
Closes IDF-4728
See merge request espressif/esp-idf!17727
Previous version of the code used a fixed constant (500 ms) for the
erase timeout and added 1 ms for each sector erased.
This commit improves timeouts calculation:
- For SD cards, check if erase timeout information is present in the
SSR register. If yes, use it for erase timeout calculation.
Otherwise assume 250ms per erase block, same as Linux does.
- For eMMC assume 250ms per erase block (but no less than 1 second).
This has to be improved later to use the erase timeout info in the
extended CSD register.
