Part Number: AM625
Tool/software:
Hi,
we are trying to boot from SD card using the MMC2 port.we have done the changes in the device tree as below,
};
/* On-module Wi-Fi on WB SKUs, module-specific SDIO otherwise */
pinctrl_sdhci2: main-mmc2-pins-default {
pinctrl-single,pins = <
AM62X_IOPAD(0x120, PIN_INPUT, 0) /* (C24) MMC2_CMD */ /* WiFi_SDIO_CMD */
AM62X_IOPAD(0x118, PIN_INPUT, 0) /* (D25) MMC2_CLK */ /* WiFi_SDIO_CLK */
AM62X_IOPAD(0x114, PIN_INPUT, 0) /* (B24) MMC2_DAT0 */ /* WiFi_SDIO_DATA0 */
AM62X_IOPAD(0x110, PIN_INPUT, 0) /* (C25) MMC2_DAT1 */ /* WiFi_SDIO_DATA1 */
AM62X_IOPAD(0x10c, PIN_INPUT, 0) /* (E23) MMC2_DAT2 */ /* WiFi_SDIO_DATA2 */
AM62X_IOPAD(0x108, PIN_INPUT, 0) /* (D24) MMC2_DAT3 */ /* WiFi_SDIO_DATA3 */
AM62X_IOPAD(0x11c, PIN_INPUT, 0) /* (#N/A) MMC2_CLKB */
>;
};
/* Verdin SD_2_CD# as GPIO */
pinctrl_sd2_cd_gpio: main-gpio0-71-pins-default {
pinctrl-single,pins = <
AM62X_IOPAD(0x0124, PIN_INPUT_PULLUP, 7) /* (A23) MMC2_SDCD.GPIO0_71 */ /* SODIMM 157 */
>;
};
&sdhci2 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_sdhci2>, <&pinctrl_sd2_cd_gpio>;
cd-gpios = <&main_gpio1 71 GPIO_ACTIVE_LOW>;
disable-wp;
ti,fails-without-test-cd;
ti,driver-strength-ohm = <33>;
status = "okay";
};
we bitbake .wic image and write it into external Sd card using Sudo DD commad.
the issue is that when i try to boot from Sd card using mmc2.
in u-boot when i use the commad mmc dev 2, it returns an error stating No MMC 2 device found.
is there anything wrong in the above config or suggest me a way to boot from MMC2!
Thanks in advance.
