Hello,
I am working on am3358 based custom board. I am using U-boot 2017. I want to boot the board from eMMC. When i try to do that, board resets. Same happens when I use "mmc dev 1" command on uboot prompt. following are the logs:
Hit any key to stop autoboot: 0
=> mmc list
OMAP SD/MMC: 0 (SD)
OMAP SD/MMC: 1
=> mmc dev 1
data abort
pc : [<bff71a30>] lr : [<bff71a25>]
reloc pc : [<8081ea30>] lr : [<8081ea25>]
sp : bdf28cc8 ip : 00000000 fp : 00000003
r10: bdf34978 r9 : bdf32ed8 r8 : bffb309c
r7 : 40000000 r6 : bdf34908 r5 : bdf34978 r4 : 47810000
r3 : bff7104b r2 : bff71a19 r1 : bff9b21e r0 : bdf34908
Flags: nZCv IRQs off FIQs on Mode SVC_32
Resetting CPU ...
resetting ...
Following is the device tree configurations:
sdcard_pins: pinmux_sdcard_pins {
pinctrl-single,pins = <
AM33XX_IOPAD(0x960, PIN_INPUT | MUX_MODE5) /* (B16) spi0_cs1.mmc0_sdcd */
AM33XX_IOPAD(0x8fc, PIN_INPUT_PULLUP | MUX_MODE0) /* (G18) mmc0_dat0.mmc0_dat0 */
AM33XX_IOPAD(0x8f8, PIN_INPUT_PULLUP | MUX_MODE0) /* (H17) mmc0_dat1.mmc0_dat1 */
AM33XX_IOPAD(0x8f4, PIN_INPUT_PULLUP | MUX_MODE0) /* (H18) mmc0_dat2.mmc0_dat2 */
AM33XX_IOPAD(0x8f0, PIN_INPUT_PULLUP | MUX_MODE0) /* (H19) mmc0_dat3.mmc0_dat3 */
AM33XX_IOPAD(0x904, PIN_INPUT_PULLUP | MUX_MODE0) /* (G17) mmc0_cmd.mmc0_cmd */
AM33XX_IOPAD(0x900, PIN_INPUT_PULLUP | MUX_MODE0) /* (G19) mmc0_clk.mmc0_clk */
>;
};
emmc_pins: pinmux_emmc_pins {
pinctrl-single,pins = <
AM33XX_IOPAD(0x800, PIN_INPUT_PULLUP | MUX_MODE1) /* (W10) gpmc_ad0.mmc1_dat0 */
AM33XX_IOPAD(0x804, PIN_INPUT_PULLUP | MUX_MODE1) /* (V9) gpmc_ad1.mmc1_dat1 */
AM33XX_IOPAD(0x808, PIN_INPUT_PULLUP | MUX_MODE1) /* (V12) gpmc_ad2.mmc1_dat2 */
AM33XX_IOPAD(0x80C, PIN_INPUT_PULLUP | MUX_MODE1) /* (W13) gpmc_ad3.mmc1_dat3 */
AM33XX_IOPAD(0x810, PIN_INPUT_PULLUP | MUX_MODE1) /* (V13) gpmc_ad4.mmc1_dat4 */
AM33XX_IOPAD(0x814, PIN_INPUT_PULLUP | MUX_MODE1) /* (W14) gpmc_ad5.mmc1_dat5 */
AM33XX_IOPAD(0x818, PIN_INPUT_PULLUP | MUX_MODE1) /* (U14) gpmc_ad6.mmc1_dat6 */
AM33XX_IOPAD(0x81C, PIN_INPUT_PULLUP | MUX_MODE1) /* (W15) gpmc_ad7.mmc1_dat7 */
AM33XX_IOPAD(0x884, PIN_INPUT_PULLUP | MUX_MODE2) /* (U15) gpmc_csn2.mmc1_cmd */
AM33XX_IOPAD(0x880, PIN_INPUT_PULLUP | MUX_MODE2) /* (V14) gpmc_csn1.mmc1_clk */
>;
};
&mmc1 {
status = "okay";
vmmc-supply = <&vmmc_reg>;
bus-width = <4>;
pinctrl-names = "default";
pinctrl-0 = <&sdcard_pins>;
ti,needs-special-hs-handling;
};
&mmc2 {
status = "okay";
vmmc-supply = <&vmmc_reg>;
ti,non-removable;
bus-width = <8>;
cap-power-off-card;
keep-power-in-suspend;
pinctrl-names = "default";
pinctrl-0 = <&emmc_pins>;
ti,vcc-aux-disable-is-sleep;
};
I am to boot from sd card properly. Please let me know what is the issue with eMMC?
Regards,
Rohit
