spi flash u-Boot parameters

[nareshpuli]

Hello,

we are using NxpP2020RDB, Please can you attach Bootcommands for SPI_Flash.

what are parameters needed to configure for SPI_Flash kernel Boot-up

My U-Boot Log

 sf probe 0
SF: Detected S25FL128P_64K with page size 256 Bytes, erase size 64 KiB, total 16 MiB

 printenv
baudrate=115200
bdev=sda1
bootcmd=setenv bootargs root=/dev/$bdev rw rootdelay=30 console=$consoledev,$baudrate $othbootargs;usb start;ext2load usb 0:1 $loadaddr /boot/$bootfile;ext2load usb 0:1 $fdtaddr /boot/$fdtfile;bootm $loadaddr - $fdtadr
bootdelay=10
bootfile=uImage
consoledev=ttyS0
ethact=eTSEC1
ethprime=eTSEC1
fdtaddr=c00000
hostname=unknown
hwconfig=usb1:dr_mode=host,phy_type=ulpi
jffs2nand=mtdblock9
jffs2nor=mtdblock3
loadaddr=1000000
map_lowernorbank=i2c dev 1; i2c mw 18 1 02 1; i2c mw 18 3 fd 1
map_uppernorbank=i2c dev 1; i2c mw 18 1 00 1; i2c mw 18 3 fd 1
nandboot=i2c dev 1; i2c mw 18 1 0xe8 1; i2c mw 18 3 0x03 1; reset
nandbootaddr=100000
nandfdtaddr=80000
netdev=eth0
nfsboot=setenv bootargs root=/dev/nfs rw nfsroot=$serverip:$rootpath ip=$ipaddr:$serverip:$gatewayip:$netmask:$hostname:$netdev:off console=$consoledev,$baudrate $othbootargs;tftp $loadaddr $bootfile;tftp $fdtaddr $fdr
norboot=i2c dev 1; i2c mw 18 1 0xc8 1; i2c mw 18 3 0x03 1; reset
norbootaddr=ef080000
norfdtaddr=ef040000
pciboot=i2c dev 1; i2c mw 18 1 0xa8 1; i2c mw 18 3 0x03 1; reset
ramboot=setenv bootargs root=/dev/ram rw console=$consoledev,$baudrate $othbootargs ramdisk_size=$ramdisk_size;tftp $ramdiskaddr $ramdiskfile;tftp $loadaddr $bootfile;tftp $fdtaddr $fdtfile;bootm $loadaddr $ramdiskaddr
ramdisk_size=120000
ramdiskaddr=2000000
ramdiskfile=rootfs.ext2.gz.uboot
rootpath=/opt/nfsroot
sdboot=i2c dev 1; i2c mw 18 1 0x68 1; i2c mw 18 3 0x03 1; reset
spiboot=i2c dev 1; i2c mw 18 1 0x28 1; i2c mw 18 3 0x03 1; reset
stderr=serial
stdin=serial
stdout=serial
tftpflash=tftpboot $loadaddr $uboot; protect off 0x11001000 +$filesize; erase 0x11001000 +$filesize; cp.b $loadaddr 0x11001000 $filesize; protect on 0x11001000 +$filesize; cmp.b $loadaddr 0x11001000 $filesize
uboot=u-boot.bin

Environment size: 1908/8188 bytes

[yipingwang]

Hello naresh puli,

Please refer to the following procedure to boot jffs2 filesystem from SPI flash.

In Linux please run the following command to get mtd block information

root@p2020rdb:~# mtd_debug info /dev/<mtd block jffs2 for spi>

mtd.type = MTD_NORFLASH

mtd.flags = MTD_BIT_WRITEABLE

mtd.size = 524288 (512K)

mtd.erasesize = 65536 (64K)

mtd.writesize = 1

mtd.oobsize = 0

regions = 0

compare the "mtd.erasesize" with yocto "JFFS2_ERASEBLOCK" in the file meta-fsl-ppc/conf/machine/<platform>.conf and modify "JFFS2_ERASEBLOCK" according to "mtd.erasesize" 

Under u-boot, please configure the following bootargs.

=>setenv bootargs 'root=/dev/<mtd block for spi> rw rootfstype=jffs2 console=ttyS0,115200'

=>sf probe 0

=> sf read $loadaddr <kernel addr in SPI flash> <proper size for kernel>

=> sf read $fdtaddr <fdt addr in SPI flash> <proper size for fdt file>

=>bootm $loadaddr - $fdtaddr

Have a great day,
TIC

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[nareshpuli]

Dear Yiping Wang,

i hope you are doing good.....

sorry for the late response

whatever i said i followed the same procedure but my spi flash can't get kernel image!

setenv bootargs 'root=/dev/mtd block14 rw rootfstype=jffs2 console=ttyS0,115200'

sf probe 0

sf read 0x1000000 0x00180000 0x404e56
sf read 0xc00000 0x00100000 0x3570

bootm 1000000 - c00000

Environment size: 1984/8188 bytes
=> setenv bootargs 'root=/dev/mtd block14 rw rootfstype=jffs2 console=ttyS0,115200'
=> sf probe 0
SF: Detected S25FL128P_64K with page size 256 Bytes, erase size 64 KiB, total 16 MiB
=> sf read 0x1000000 0x00180000  0x404e56
SF: 4214358 bytes @ 0x180000 Read: OK
=> sf read  0xc00000 0x00100000  0x3570
SF: 13680 bytes @ 0x100000 Read: OK
=> bootm 1000000 - c00000
WARNING: adjusting available memory to 30000000
## Booting kernel from Legacy Image at 01000000 ...
   Image Name:   Linux-3.12.19-rt30-QorIQ-SDK-V1.
   Created:      2016-10-26   5:50:59 UTC
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
   Data Size:    4214294 Bytes = 4 MiB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... Bad Data CRC
ERROR: can't get kernel image!