Hi guys,
I'm using AM437x SK. I'm able to boot (Linux system created with Yotco; 2 partitions: 1st - FAT with MLO, u-boot.img, ..; 2nd EXT with roofs, kernel, ...) from SD Card. And now I would like to boot it from onboard QSPI-NOR flash.
I ran into U-Boot 2015.07 (from SD Card) and wanted to use these commands (from http://processors.wiki.ti.com/index.php/AMSDK_u-boot_User's_Guide ) to load MLO, u-boot.img to QSPI Flash.
U-Boot # mmc rescan
U-Boot # sf probe 0
U-Boot # sf erase 0 +80000
U-Boot # fatload mmc 0 ${loadaddr} MLO.byteswap
U-Boot # sf write ${loadaddr} 0 ${filesize}
U-Boot # fatload mmc 0 ${loadaddr} u-boot.img
U-Boot # sf write ${loadaddr} 0x20000 ${filesize}
I succesfully loaded it into the SPI flash and then I rebooted the board (without SD card). Nothing happened. Am I doing it right way? Am I missing some configuration? (Is there any tutorial, wiki how to boot from (AM437x SK) SPI flash I didn't find?)
U-Boot# printenv
arch=arm
args_mmc=run finduuid;setenv bootargs console=${console} ${optargs} root=PARTUUID=${uuid} rw rootfstype=${mmcrootfstype}
baudrate=115200
board=am43xx
board_name=AM43__SK
board_rev=1.1A
board_serial=11144P420878
bootcmd=run findfdt; run envboot;run mmcboot;run usbboot;run nandboot;
bootdelay=1
bootdir=/boot
bootenvfile=uEnv.txt
bootfile=zImage
bootm_size=0x10000000
bootpart=0:2
bootscript=echo Running bootscript from mmc${mmcdev} ...; source ${loadaddr}
console=ttyO0,115200n8
cpu=armv7
dfu_alt_info_emmc=MLO raw 0x100 0x100 mmcpart 0;u-boot.img raw 0x300 0x1000 mmcpart 0
dfu_alt_info_mmc=boot part 0 1;rootfs part 0 2;MLO fat 0 1;spl-os-args fat 0 1;spl-os-image fat 0 1;u-boot.img fat 0 1;uEnv.txt fat 0 1
dfu_alt_info_qspi=u-boot.bin raw 0x0 0x080000;u-boot.backup raw 0x080000 0x080000;u-boot-spl-os raw 0x100000 0x010000;u-boot-env raw 0x110000 0x010000;u-boot-env.backup raw 0x120000 0x010000;kernel raw 0x130000 0x800000
dfu_alt_info_ram=kernel ram 0x80200000 0x4000000;fdt ram 0x80f80000 0x80000;ramdisk ram 0x81000000 0x4000000
dfu_bufsiz=0x10000
envboot=mmc dev ${mmcdev}; if mmc rescan; then echo SD/MMC found on device ${mmcdev};if run loadbootscript; then run bootscript;else if run loadbootenv; then echo Loaded env from ${bootenvfile};run importbootenv;fi;if test -n $uenvcmd; then echo Running uenvcmd ...;run uenvcmd;fi;fi;fi;
eth1addr=c4:be:84:cc:b9:7b
ethact=cpsw
ethaddr=c4:be:84:cc:b9:79
fdt_addr_r=0x88000000
fdtaddr=0x88000000
fdtfile=undefined
findfdt=if test $board_name = AM43EPOS; then setenv fdtfile am43x-epos-evm.dtb; fi; if test $board_name = AM43__GP; then setenv fdtfile am437x-gp-evm.dtb; fi; if test $board_name = AM43__SK; then setenv fdtfile am437x-sk-evm.dtb; fi; if test $board_name = AM43_IDK; then setenv fdtfile am437x-idk-evm.dtb; fi; if test $fdtfile = undefined; then echo WARNING: Could not determine device tree; fi;
finduuid=part uuid mmc 0:2 uuid
importbootenv=echo Importing environment from mmc${mmcdev} ...; env import -t ${loadaddr} ${filesize}
kernel_addr_r=0x82000000
loadaddr=0x82000000
loadbootenv=fatload mmc ${mmcdev} ${loadaddr} ${bootenvfile}
loadbootscript=load mmc ${mmcdev} ${loadaddr} boot.scr
loadfdt=load ${devtype} ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile}
loadimage=load ${devtype} ${bootpart} ${loadaddr} ${bootdir}/${bootfile}
loadramdisk=load ${devtype} ${devnum} ${rdaddr} ramdisk.gz
mmcboot=mmc dev ${mmcdev}; setenv devnum ${mmcdev}; setenv devtype mmc; if mmc rescan; then echo SD/MMC found on device ${devnum};if run loadimage; then run loadfdt; echo Booting from mmc${mmcdev} ...; run args_mmc; bootz ${loadaddr} - ${fdtaddr}; fi;fi;
mmcdev=0
mmcrootfstype=ext4 rootwait
mtdids=nand0=nand.0
mtdparts=mtdparts=nand.0:256k(NAND.SPL),256k(NAND.SPL.backup1),256k(NAND.SPL.backup2),256k(NAND.SPL.backup3),512k(NAND.u-boot-spl-os),1m(NAND.u-boot),256k(NAND.u-boot-env),256k(NAND.u-boot-env.backup1),7m(NAND.kernel),-(NAND.file-system)
nandargs=setenv bootargs console=${console} ${optargs} root=${nandroot} rootfstype=${nandrootfstype}
nandboot=echo Booting from nand ...; run nandargs; nand read ${fdtaddr} NAND.u-boot-spl-os; nand read ${loadaddr} NAND.kernel; bootz ${loadaddr} - ${fdtaddr}
nandroot=ubi0:rootfs rw ubi.mtd=NAND.file-system,4096
nandrootfstype=ubifs rootwait=1
netargs=setenv bootargs console=${console} ${optargs} root=/dev/nfs nfsroot=${serverip}:${rootpath},${nfsopts} rw ip=dhcp
netboot=echo Booting from network ...; setenv autoload no; dhcp; run netloadimage; run netloadfdt; run netargs; bootz ${loadaddr} - ${fdtaddr}
netloadfdt=tftp ${fdtaddr} ${fdtfile}
netloadimage=tftp ${loadaddr} ${bootfile}
nfsopts=nolock
partitions=uuid_disk=${uuid_gpt_disk};name=rootfs,start=2MiB,size=-,uuid=${uuid_gpt_rootfs}
ramargs=setenv bootargs console=${console} ${optargs} root=${ramroot} rootfstype=${ramrootfstype}
ramdisk_addr_r=0x88080000
ramroot=/dev/ram0 rw
ramrootfstype=ext2
rdaddr=0x88080000
rootpath=/export/rootfs
soc=am33xx
static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}::off
stderr=serial
stdin=serial
stdout=serial
usbargs=setenv bootargs console=${console} ${optargs} root=${usbroot} rootfstype=${usbrootfstype}
usbboot=setenv devnum ${usbdev}; setenv devtype usb; usb start ${usbdev}; if usb dev ${usbdev}; then if run loadbootenv; then echo Loaded environment from ${bootenv};run importbootenv;fi;if test -n $uenvcmd; then echo Running uenvcmd ...;run uenvcmd;fi;if run loadimage; then run loadfdt; echo Booting from usb ${usbdev}...; run usbargs;bootz ${loadaddr} - ${fdtaddr}; fi;fi
usbdev=0
usbnet_devaddr=c4:be:84:cc:b9:7b
usbroot=/dev/sda2 rw
usbrootfstype=ext4 rootwait
vendor=ti
ver=U-Boot 2015.07 (Dec 17 2015 - 06:53:08 +0100)
