Have you solved the problem? I had a similar problem when BBAI inserted the SD card and was unable to start the system from eMMC.
在2020年10月13日星期二 UTC+8 上午6:40:08<[email protected]> 写道： > I've got a custom board with SYSBOOT boot order set to always prefer the > onboard eMMC (MMC1) over the SD card (MMC0), but after initial flash of the > eMMC it always boots from the SD card if it is present. > > I'm speculating that SPL is loaded from MMC1 as I expect but then it is > using MMC0 as the root device and booting from there. If that is the case, > what changes are necessary to u-boot and or uEnv.txt to always boot from > eMMC / MMC1 unless the button to boot from SD is held? > > Here is output from /dev/ttyO0 during both scenarios: > > *eMMC only, no SD card present* > > U-Boot SPL 2019.04-00002-gc9b3922522 (Aug 24 2020 - 16:42:18 -0500) > Trying to boot from MMC2 > Loading Environment from EXT4... Card did not respond to voltage select! > > > > > U-Boot 2019.04-00002-gc9b3922522 (Aug 24 2020 - 16:42:18 -0500), Build: > jenkins-github_Bootloader-Builder-144 > > CPU : AM335X-GP rev 2.1 > I2C: ready > DRAM: 512 MiB > No match for driver 'omap_hsmmc' > No match for driver 'omap_hsmmc' > Some drivers were not found > Reset Source: Power-on reset has occurred. > RTC 32KCLK Source: External. > MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1 > Loading Environment from EXT4... Card did not respond to voltage select! > Board: BeagleBone Black > <ethaddr> not set. Validating first E-fuse MAC > BeagleBone Black: > BeagleBone Cape EEPROM: no EEPROM at address: 0x54 > BeagleBone Cape EEPROM: no EEPROM at address: 0x55 > BeagleBone Cape EEPROM: no EEPROM at address: 0x56 > BeagleBone Cape EEPROM: no EEPROM at address: 0x57 > Net: eth0: MII MODE > cpsw, usb_ether > Press SPACE to abort autoboot in 0 seconds > board_name=[A335BNLT] ... > board_rev=[] ... > Card did not respond to voltage select! > Card did not respond to voltage select! > Card did not respond to voltage select! > gpio: pin 56 (gpio 56) value is 0 > gpio: pin 55 (gpio 55) value is 0 > gpio: pin 54 (gpio 54) value is 0 > gpio: pin 53 (gpio 53) value is 1 > Card did not respond to voltage select! > Card did not respond to voltage select! > switch to partitions #0, OK > mmc1(part 0) is current device > Scanning mmc 1:1... > gpio: pin 56 (gpio 56) value is 0 > gpio: pin 55 (gpio 55) value is 0 > gpio: pin 54 (gpio 54) value is 0 > gpio: pin 53 (gpio 53) value is 1 > switch to partitions #0, OK > mmc1(part 0) is current device > gpio: pin 54 (gpio 54) value is 1 > Checking for: /uEnv.txt ... > Checking for: /boot.scr ... > Checking for: /boot/boot.scr ... > Checking for: /boot/uEnv.txt ... > gpio: pin 55 (gpio 55) value is 1 > 1054 bytes read in 45 ms (22.5 KiB/s) > Loaded environment from /boot/uEnv.txt > debug: [dtb=xxxxx.dtb] ... > Using: dtb=xxxx.dtb ... > Checking if uname_r is set in /boot/uEnv.txt... > gpio: pin 56 (gpio 56) value is 1 > Running uname_boot ... > loading /boot/vmlinuz-4.19.94-ti-r43 ... > 10097528 bytes read in 706 ms (13.6 MiB/s) > debug: [enable_uboot_overlays=1] ... > debug: [enable_uboot_cape_universal=1] ... > debug: [uboot_base_dtb_univ=am335x-boneblack-uboot-univ.dtb] ... > uboot_overlays: [uboot_base_dtb=am335x-boneblack-uboot-univ.dtb] ... > uboot_overlays: Switching too: dtb=am335x-boneblack-uboot-univ.dtb ... > loading /boot/dtbs/4.19.94-ti-r43/am335x-boneblack-uboot-univ.dtb ... > 60334 bytes read in 59 ms (998 KiB/s) > uboot_overlays: [fdt_buffer=0x60000] ... > uboot_overlays: loading /lib/firmware/BB-ADC-00A0.dtbo ... > 867 bytes read in 318 ms (2 KiB/s) > uboot_overlays: loading /lib/firmware/BB-BONE-eMMC1-01-00A0.dtbo ... > 1584 bytes read in 68 ms (22.5 KiB/s) > uboot_overlays: loading /lib/firmware/BB-HDMI-TDA998x-00A0.dtbo ... > 4915 bytes read in 191 ms (24.4 KiB/s) > loading /boot/initrd.img-4.19.94-ti-r43 ... > 3342230 bytes read in 242 ms (13.2 MiB/s) > debug: [console=ttyO0,115200n8 bone_capemgr.uboot_capemgr_enabled=1 > root=/dev/mmcblk1p1 ro rootfstype=ext4 rootwait coherent_pool=1M > net.ifnames=0 quiet] ... > debug: [bootz 0x82000000 0x88080000:32ff96 88000000] ... > ## Flattened Device Tree blob at 88000000 > Booting using the fdt blob at 0x88000000 > Loading Ramdisk to 8fcd0000, end 8fffff96 ... OK > Loading Device Tree to 8fc5d000, end 8fccffff ... OK > > *SD card present* > > U-Boot SPL 2019.04-00002-gc9b3922522 (Aug 24 2020 - 16:42:18 -0500) > Trying to boot from MMC2 > Loading Environment from EXT4... ** File not found /boot/uboot.env ** > > ** Unable to read "/boot/uboot.env" from mmc0:1 ** > > > U-Boot 2019.04-00002-gc9b3922522 (Aug 24 2020 - 16:42:18 -0500), Build: > jenkins-github_Bootloader-Builder-144 > > CPU : AM335X-GP rev 2.1 > I2C: ready > DRAM: 512 MiB > No match for driver 'omap_hsmmc' > No match for driver 'omap_hsmmc' > Some drivers were not found > Reset Source: Power-on reset has occurred. > RTC 32KCLK Source: External. > MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1 > Loading Environment from EXT4... ** File not found /boot/uboot.env ** > > ** Unable to read "/boot/uboot.env" from mmc0:1 ** > Board: BeagleBone Black > <ethaddr> not set. Validating first E-fuse MAC > BeagleBone Black: > BeagleBone Cape EEPROM: no EEPROM at address: 0x54 > BeagleBone Cape EEPROM: no EEPROM at address: 0x55 > BeagleBone Cape EEPROM: no EEPROM at address: 0x56 > BeagleBone Cape EEPROM: no EEPROM at address: 0x57 > Net: eth0: MII MODE > cpsw, usb_ether > Press SPACE to abort autoboot in 0 seconds > board_name=[A335BNLT] ... > board_rev=[] ... > switch to partitions #0, OK > mmc0 is current device > SD/MMC found on device 0 > switch to partitions #0, OK > mmc0 is current device > Scanning mmc 0:1... > gpio: pin 56 (gpio 56) value is 0 > gpio: pin 55 (gpio 55) value is 0 > gpio: pin 54 (gpio 54) value is 0 > gpio: pin 53 (gpio 53) value is 1 > switch to partitions #0, OK > mmc0 is current device > gpio: pin 54 (gpio 54) value is 1 > Checking for: /uEnv.txt ... > Checking for: /boot.scr ... > Checking for: /boot/boot.scr ... > Checking for: /boot/uEnv.txt ... > gpio: pin 55 (gpio 55) value is 1 > 1054 bytes read in 34 ms (30.3 KiB/s) > Loaded environment from /boot/uEnv.txt > debug: [dtb=xxxx.dtb] ... > Using: dtb=xxxx.dtb ... > Checking if uname_r is set in /boot/uEnv.txt... > gpio: pin 56 (gpio 56) value is 1 > Running uname_boot ... > loading /boot/vmlinuz-4.19.94-ti-r43 ... > 10097528 bytes read in 665 ms (14.5 MiB/s) > debug: [enable_uboot_overlays=1] ... > debug: [enable_uboot_cape_universal=1] ... > debug: [uboot_base_dtb_univ=am335x-boneblack-uboot-univ.dtb] ... > uboot_overlays: [uboot_base_dtb=am335x-boneblack-uboot-univ.dtb] ... > uboot_overlays: Switching too: dtb=am335x-boneblack-uboot-univ.dtb ... > loading /boot/dtbs/4.19.94-ti-r43/am335x-boneblack-uboot-univ.dtb ... > 60334 bytes read in 55 ms (1 MiB/s) > uboot_overlays: [fdt_buffer=0x60000] ... > uboot_overlays: loading /lib/firmware/BB-ADC-00A0.dtbo ... > 867 bytes read in 310 ms (2 KiB/s) > uboot_overlays: loading /lib/firmware/BB-BONE-eMMC1-01-00A0.dtbo ... > 1584 bytes read in 210 ms (6.8 KiB/s) > uboot_overlays: loading /lib/firmware/BB-HDMI-TDA998x-00A0.dtbo ... > 4915 bytes read in 59 ms (81.1 KiB/s) > loading /boot/initrd.img-4.19.94-ti-r43 ... > 3342230 bytes read in 235 ms (13.6 MiB/s) > debug: [console=ttyO0,115200n8 bone_capemgr.uboot_capemgr_enabled=1 > root=/dev/mmcblk0p1 ro rootfstype=ext4 rootwait coherent_pool=1M > net.ifnames=0 quiet] ... > debug: [bootz 0x82000000 0x88080000:32ff96 88000000] ... > ## Flattened Device Tree blob at 88000000 > Booting using the fdt blob at 0x88000000 > Loading Ramdisk to 8fcd0000, end 8fffff96 ... OK > Loading Device Tree to 8fc5d000, end 8fccffff ... OK > > Thanks in advance, > Ryan > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/f6082ead-b4a4-4061-8c5c-aa5cf84523f2n%40googlegroups.com.
