feat(sdmmc): Add SDMMC support for P4 + remove BUILTIN LED #10460
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Memory usage test (comparing PR against master branch)The table below shows the summary of memory usage change (decrease - increase) in bytes and percentage for each target.
Click to expand the detailed deltas report [usage change in BYTES]
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Status: Pending Merge
libraries/SD_MMC/src/SD_MMC.cpp
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| @@ -186,6 +203,19 @@ bool SDMMCFS::begin(const char *mountpoint, bool mode1bit, bool format_if_mount_ | |||
| } | |||
| _mode1bit = mode1bit; | |||
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| #ifdef SOC_SDMMC_IO_POWER_EXTERNAL | |||
| sd_pwr_ctrl_ldo_config_t ldo_config = { | |||
| .ldo_chan_id = _pin_power, | |||
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Are you not by any chance confusing GPIO number with LDO channel number here?
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Yeah I get it wrong here.
Should it be always channel 4 for P4 or should I let the user to specify?
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This depends on the development board. ESP32-P4 EV board powers IO lines of slot 0 using LDO channel 4. Other boards may use other LDO channels or even use an external LDO, or directly power them from VDD.
I think you need to define this in the board-specific header file.
For P4 EV board, SD card should use slot 0. Slot 1 is used for SDIO connection to the C6 module. See espressif/esp-bsp#405 for an example. |
Add missing note about power pin for P4 Co-authored-by: Lucas Saavedra Vaz <[email protected]>
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| #elif SOC_SDMMC_USE_IOMUX && defined(BOARD_HAS_SDMMC) && defined(CONFIG_IDF_TARGET_ESP32P4) | ||
| // ESP32-P4 can use either IOMUX or GPIO matrix | ||
| #elif defined(BOARD_HAS_SDMMC) && defined(CONFIG_IDF_TARGET_ESP32P4) | ||
| #if defined(BOARD_SDMMC_SLOT) && (BOARD_SDMMC_SLOT == 0) | ||
| _pin_clk = SDMMC_SLOT0_IOMUX_PIN_NUM_CLK; |
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Does this actually work? IIUC, the current sdmmc driver expects all pins to be set to 0 for IOMUX slots.
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We need the pins for Peripheral manager.
Later the config is cleared, as the SDMMC_SLOT_CONFIG_DEFAULT for P4 is setting the pins in the config.
sdmmc_slot_config_t slot_config = SDMMC_SLOT_CONFIG_DEFAULT();
#if defined(CONFIG_IDF_TARGET_ESP32P4) && defined(BOARD_SDMMC_SLOT) && (BOARD_SDMMC_SLOT == 0)
host.slot = SDMMC_HOST_SLOT_0;
// reconfigure slot_config to remove all pins in order to use IO_MUX
slot_config = {
.cd = SDMMC_SLOT_NO_CD,
.wp = SDMMC_SLOT_NO_WP,
.width = 4,
.flags = 0,
};
#else
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For P4 it will be always this config:
#define SDMMC_SLOT_CONFIG_DEFAULT() {\
.clk = GPIO_NUM_43, \
.cmd = GPIO_NUM_44, \
.d0 = GPIO_NUM_39, \
.d1 = GPIO_NUM_40, \
.d2 = GPIO_NUM_41, \
.d3 = GPIO_NUM_42, \
.d4 = GPIO_NUM_45, \
.d5 = GPIO_NUM_46, \
.d6 = GPIO_NUM_47, \
.d7 = GPIO_NUM_48, \
.cd = SDMMC_SLOT_NO_CD, \
.wp = SDMMC_SLOT_NO_WP, \
.width = SDMMC_SLOT_WIDTH_DEFAULT, \
.flags = 0, \
}
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As both IOMUX and GPIO Matrix are supported, this will never be used for P4.
#if SOC_SDMMC_USE_IOMUX && !SOC_SDMMC_USE_GPIO_MATRIX
/**
* Macro defining default configuration of SDMMC host slot
*/
#define SDMMC_SLOT_CONFIG_DEFAULT() {\
.cd = SDMMC_SLOT_NO_CD, \
.wp = SDMMC_SLOT_NO_WP, \
.width = SDMMC_SLOT_WIDTH_DEFAULT, \
.flags = 0, \
}
Description of Change
This PR adds power pin setting for SDMMC, as on P4 the SDMMC IO Power pins is controlled by external power supply.
Also the NEOPIXEL LED and BUILTIN LED got removed, as the P4 Function EV board don't have controllable LED (only power LED)
Tests scenarios
Tested on ESP32-P4 Function EV Board V1.4
Related links
#10278