Hello Robert
I am still facing the issue for loading the UART Port
Thanks
On Monday, May 6, 2019 at 2:06:18 PM UTC+5:30, Sharvin Shah wrote:
>
> It boots into 1st partition I am unable to understand this behaviour
>
> On Monday, May 6, 2019 at 2:05:36 PM UTC+5:30, Sharvin Shah wrote:
>>
>> When I add under *if run loadfdt; then \* This is working properly
>>
>> setenv fdt_buffer 0x60000; \
>> fatload mmc 0:1 ${rdaddr} /lib/firmware/BB-UART4-00A0.dtbo; \
>> fdt addr ${fdtaddr}; \
>> fdt resize ${fdt_buffer}; \
>> fdt apply ${rdaddr}; \
>> fdt resize ${fdt_buffer}; \
>> fatload mmc 0:1 ${rdaddr} /lib/firmware/BB-UART1-00A0.dtbo; \
>>
>> But When I add anything under
>> * fatload mmc 0:1 ${rdaddr} /lib/firmware/BB-UART1-00A0.dtbo; \ *
>> Uboot starts booting in a different way.
>>
>> uEnv.txt:
>>
>> rdaddr=0x88080000
>>
>> initrd_high=0xffffffff
>> fdt_high=0xffffffff
>>
>> loadxrd=echo debug: [/boot/initrd.img-${uname_r}] ... ; load mmc 0:1
>> ${rdaddr} /boot/initrd.img-${uname_r}; setenv rdsize ${filesize}
>> loaduEnvtxt=load mmc 0:1 ${loadaddr} /boot/uEnv.txt ; env import -t
>> ${loadaddr} ${filesize};
>> check_dtb=if test -n ${dtb}; then setenv fdtfile ${dtb};fi;
>> check_uboot_overlays=if test -n ${enable_uboot_overlays}; then setenv
>> enable_uboot_overlays ;fi;
>>
>> loadall=run loaduEnvtxt; run check_dtb; run check_uboot_overlays; run
>> loadxrd;
>>
>> rootpart=0:2
>> flagpart=0:4
>> bootdir=/boot
>> bootfile=vmlinuz-4.14.71-ti-r80
>> console=ttyO0,115200n8
>> fdtaddr=0x88000000
>> fdtfile=am335x-bonegreen-wireless.dtb
>> loadaddr=0x82000000
>> mmcroot=/dev/mmcblk0p2 ro
>> mmcrootfstype=ext4 rootwait
>>
>> mmcargs=setenv bootargs console=${console} ${optargs} ${cape_disable}
>> ${cape_enable} root=${mmcroot} rootfstype=${mmcrootfstype} ${cmdline}
>>
>> loadfdt=echo debug: [/boot/dtbs/${uname_r}/${fdtfile}] ... ;load mmc 0:1
>> ${fdtaddr} /boot/dtbs/${uname_r}/${fdtfile}
>>
>> loadimage=echo debug: [/boot/vmlinuz-${uname_r}] ... ; load mmc 0:1
>> ${loadaddr} /boot/vmlinuz-${uname_r}
>>
>> boot_three=setenv rootpart 0:3; setenv mmcroot /dev/mmcblk0p3 ro
>>
>> findroot=\
>> if test -e mmc $flagpart three; then \
>> if test -e mmc $flagpart three_ok; then \
>> run boot_three; \
>> elif test ! -e mmc $flagpart three_tried; then \
>> fatwrite mmc $flagpart $loadaddr three_tried 4; \
>> run boot_three; \
>> fi; \
>> elif test -e mmc $flagpart two; then \
>> if test ! -e mmc $flagpart two_ok; then \
>> if test -e mmc $flagpart two_tried; then \
>> run boot_three; \
>> else \
>> fatwrite mmc $flagpart $loadaddr two_tried 4; \
>> fi; \
>> fi; \
>> fi;
>> uenvcmd=\
>> run loadall; \
>> run findroot; \
>> echo Using root partition ${rootpart}; \
>> if run loadfdt; then \
>> echo Inside loadfdt; \
>> setenv fdt_buffer 0x60000; \
>> fatload mmc 0:1 ${rdaddr} /lib/firmware/BB-UART4-00A0.dtbo; \
>> echo I have loaded BB-UART4-00A0.dtbo; \
>> fdt addr ${fdtaddr}; \
>> fdt resize ${fdt_buffer}; \
>> fdt apply ${rdaddr}; \
>> fdt resize ${fdt_buffer}; \
>> fatload mmc 0:1 ${rdaddr} /lib/firmware/BB-UART1-00A0.dtbo; \
>> echo I have loaded BB-UART1-00A0.dtbo; \
>> if run loadimage; then \
>> run mmcargs; \
>> bootz ${loadaddr} - ${fdtaddr}; \
>> fi; \
>> fi;
>>
>> Boot logs:
>>
>> U-Boot SPL 2018.09-00002-g0b54a51eee (Sep 10 2018 - 19:41:39 -0500)
>> Trying to boot from MMC2
>> Loading Environment from EXT4...
>> ** Unable to use mmc 0:1 for loading the env **
>>
>>
>> U-Boot 2018.09-00002-g0b54a51eee (Sep 10 2018 - 19:41:39 -0500), Build:
>> jenkin
>> s-github_Bootloader-Builder-65
>>
>> 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...
>> ** Unable to use mmc 0:1 for loading the env **
>> Board: BeagleBone Black
>> <ethaddr> not set. Validating first E-fuse MAC
>> BeagleBone Black:
>> Model: SeeedStudio BeagleBone Green Wireless:
>> BeagleBone: cape eeprom: i2c_probe: 0x54:
>> BeagleBone: cape eeprom: i2c_probe: 0x55:
>> BeagleBone: cape eeprom: i2c_probe: 0x56:
>> BeagleBone: cape eeprom: i2c_probe: 0x57:
>> Net: eth0: MII MODE
>> Could not get PHY for cpsw: addr 0
>> cpsw, usb_ether
>> Press SPACE to abort autoboot in 2 seconds
>> board_name=[A335BNLT] ...
>> board_rev=[GW1A] ...
>> 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...
>> 60067 bytes read in 5 ms (11.5 MiB/s)
>> 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 ...
>> 2257 bytes read in 2 ms (1.1 MiB/s)
>> gpio: pin 55 (gpio 55) value is 1
>> Loaded environment from /uEnv.txt
>> Importing environment from mmc ...
>> Checking if uenvcmd is set ...
>> test - minimal test like /bin/sh
>>
>> Usage:
>> test [args..]
>> Checking if client_ip is set ...
>> Checking for: /boot.scr ...
>> Checking for: /boot/boot.scr ...
>> Checking for: /boot/uEnv.txt ...
>> gpio: pin 55 (gpio 55) value is 1
>> 2176 bytes read in 3 ms (708 KiB/s)
>> Loaded environment from /boot/uEnv.txt
>> Checking if uname_r is set in /boot/uEnv.txt...
>> gpio: pin 56 (gpio 56) value is 1
>> Running uname_boot ...
>> loading /boot/vmlinuz-4.14.71-ti-r80 ...
>> debug: [/boot/vmlinuz-4.14.71-ti-r80] ...
>> 10416640 bytes read in 652 ms (15.2 MiB/s)
>> debug: [enable_uboot_overlays=1] ...
>> debug: [enable_uboot_cape_universal=1] ...
>> debug: [uboot_base_dtb_univ=am335x-bonegreen-wireless-uboot-univ.dtb] ...
>> uboot_overlays: [uboot_base_dtb=am335x-bonegreen-wireless-uboot-univ.dtb]
>> ...
>> uboot_overlays: Switching too:
>> dtb=am335x-bonegreen-wireless-uboot-univ.dtb ...
>> debug:
>> [/boot/dtbs/4.14.71-ti-r80/am335x-bonegreen-wireless-uboot-univ.dtb] ...
>> 156290 bytes read in 14 ms (10.6 MiB/s)
>> uboot_overlays: [fdt_buffer=0x60000] ...
>> uboot_overlays: loading /lib/firmware/BB-UART4-00A0.dtbo ...
>> 1075 bytes read in 3 ms (349.6 KiB/s)
>> uboot_overlays: loading /lib/firmware/BB-UART1-00A0.dtbo ...
>> 1075 bytes read in 3 ms (349.6 KiB/s)
>> uboot_overlays: loading /lib/firmware/BB-I2C2-00A0.dtbo ...
>> 1152 bytes read in 3 ms (375 KiB/s)
>> uboot_overlays: loading /lib/firmware/BB-BONE-eMMC1-01-00A0.dtbo ...
>> 1440 bytes read in 3 ms (468.8 KiB/s)
>> uboot_overlays: loading /lib/firmware/BB-BBGW-WL1835-00A0.dtbo ...
>> 4839 bytes read in 3 ms (1.5 MiB/s)
>> uboot_overlays: loading /lib/firmware/BB-ADC-00A0.dtbo ...
>> 711 bytes read in 3 ms (231.4 KiB/s)
>> uboot_overlays: loading /lib/firmware/AM335X-PRU-RPROC-4-4-TI-00A0.dtbo
>> ...
>> 2402 bytes read in 3 ms (781.3 KiB/s)
>> loading /boot/initrd.img-4.14.71-ti-r80 ...
>> 4799493 bytes read in 303 ms (15.1 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 0x88080000:493c05 88000000] ...
>> ## Flattened Device Tree blob at 88000000
>> Booting using the fdt blob at 0x88000000
>> reserving fdt memory region: addr=88000000 size=88000
>> Using Device Tree in place at 88000000, end 8808afff
>>
>> Starting kernel ...
>>
>> [ 0.002080] timer_probe: no matching timers found
>> [ 1.135823] wkup_m3_ipc 44e11324.wkup_m3_ipc: could not get rproc
>> handle
>> [ 1.486352] omap_voltage_late_init: Voltage driver support not added
>> [ 1.493340] PM: Cannot get wkup_m3_ipc handle
>> mount: mounting /dev/mmcblk0p1 on /root failed: Invalid argument
>> mount: mounting /dev on /root/dev failed: No such file or directory
>> mount: mounting /dev on /root/dev failed: No such file or directory
>> mount: mounting /run on /root/run failed: No such file or directory
>> run-init: current directory on the same filesystem as the root: error 0
>> Target filesystem doesn't have requested /sbin/init.
>> run-init: current directory on the same filesystem as the root: error 0
>> run-init: current directory on the same filesystem as the root: error 0
>> run-init: current directory on the same filesystem as the root: error 0
>> run-init: current directory on the same filesystem as the root: error 0
>> run-init: current directory on the same filesystem as the root: error 0
>> No init found. Try passing init= bootarg.
>>
>>
>> BusyBox v1.22.1 (Debian 1:1.22.0-19+b3) built-in shell (ash)
>> Enter 'help' for a list of built-in commands.
>>
>> (initramfs)
>>
>>
>>
>> On Saturday, May 4, 2019 at 8:05:12 PM UTC+5:30, RobertCNelson wrote:
>>>
>>> > uenvcmd=\
>>> > run loadall; \
>>> > run findroot; \
>>> > echo Using root partition ${rootpart}; \
>>> > setenv fdt_buffer 0x60000; \
>>> > load ${devtype} ${bootpart} ${rdaddr} ${uboot_overlay}; \
>>> > fdt addr ${fdtaddr}; \
>>> > fdt resize ${fdt_buffer}; \
>>> > fdt apply ${rdaddr}; \
>>> > fdt resize ${fdt_buffer}; \
>>> > echo Done with the edit; \
>>> > if run loadfdt; then \
>>> > echo Loaded ${fdtfile}; \
>>>
>>> Wrong order, you placed my "reference example" before the you loaded
>>> the main dtb. ( i also didn't expect you'd just copy it as is.. so
>>> let's expand it more..)
>>>
>>> ```
>>> if run loadfdt; then \
>>> echo Loaded ${fdtfile}; \
>>> setenv fdt_buffer 0x60000; \
>>> load mmc 0:1 ${rdaddr} /lib/firmware/BB-UART4-00A0.dtbo; \
>>> fdt addr ${fdtaddr}; \
>>> fdt resize ${fdt_buffer}; \
>>> fdt apply ${rdaddr}; \
>>> fdt resize ${fdt_buffer}; \
>>> load mmc 0:1 ${rdaddr} /lib/firmware/BB-UART1-00A0.dtbo; \
>>> fdt addr ${fdtaddr}; \
>>> fdt resize ${fdt_buffer}; \
>>> fdt apply ${rdaddr}; \
>>> fdt resize ${fdt_buffer}; \
>>> <and so on>
>>> <and so on>
>>> if run loadimage; then \
>>> run mmcargs; \
>>> bootz ${loadaddr} - ${fdtaddr}; \
>>> fi; \
>>> fi;
>>> ```
>>>
>>> Does that now make sense?
>>>
>>> Regards,
>>>
>>> --
>>> Robert Nelson
>>> https://rcn-ee.com/
>>>
>>
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