Bureaucrats, dave_user, Administrators
4,650
edits
Changes
no edit summary
** U-Boot will fetch and program PL bitstream and then fetch Linux kernel binary images (kernel + device tree) from on-board NOR flash memory, while later the OS will mount the root file system from a NAND partition.
==Use case #1== === Program root file system in NAND flash ===
This is a common step for both booting options.
You can now safely reboot or turn off the system.
=== Program boot images ===
==== NOR flash ====
We assume that the following environment variables are present in u-boot:
=> setenv bootcmd run spi_nand
=> saveenv
</pre>
==Use case #2==
<pre>
Bora> nand info
Device 0: nand0, sector size 128 KiB
Page size 2048 b
OOB size 64 b
Erase size 131072 b
subpagesize 512 b
options 0x 0
bbt options 0x 20000
Bora> nand erase 0 3000000
NAND erase: device 0 offset 0x0, size 0x3000000
Erasing at 0x2fe0000 -- 100% complete.
OK
Bora> nand write ${loadaddr} 0 <INTERRUPT>
Bora> print ${filesize}
## Error: "8fc790" not defined
Bora> print
DBXx_test_result=test_passed
addcons=setenv bootargs ${bootargs} console=${console},115200n8 debug earlyprintk
addip=setenv bootargs ${bootargs} ip=${ipaddr}:${serverip}:${gateway}:${netmask}:${hostname}:${ethdev}
addmisc=setenv bootargs ${bootargs} cma=16M ${mtdparts}
baudrate=115200
bootaddr=0x101100
bootcmd=run net_nfs
bootdelay=3
bootfile=bora/linux/belk-4.0.0_uImage
bootscript=echo Running bootscript from ${recoverydev} ...; source ${loadaddr}
cb_configid#=ffffffff
cb_uniqueid#=00000000:00000000
configid_fixupfdt=if configid checkfdt ${fdtaddr} som_configid ${som_configid#}; then configid fdt_uniqueid ${fdtaddr}; fi
console=ttyPS0
ethact=ethernet@e000b000
ethaddr=00:50:C2:1E:AF:B3
ethdev=eth0
fdt_base=0x00780000
fdt_high=0x1F000000
fdtaddr=2000000
fdtcontroladdr=3ffa0a90
fdtfile=bora/linux/belk-4.0.0_bora.dtb
fileaddr=2080000
filesize=8fc790
fpga_base=0x00180000
fpgafile=bora/bora.bin
fsbl_base=0x40000
gateway=192.168.0.254
header_base=0
hostname=bora
ipaddr=192.168.0.81
jtag_vx=run vxargs; bootvx 0x200000
kernel_base=0x00800000
load=tftpboot ${loadaddr} bora/u-boot.bin
loadaddr=0x02080000
loadbootscript=fatload ${recoverydev} 0:1 ${loadaddr} ${script};
loadfdt=tftpboot ${fdtaddr} ${fdtfile}
loadfpga=tftpboot ${loadaddr} ${fpgafile}
loadfsbl=tftpboot ${loadaddr} bora/bora_fsbl.bin
loadhdr=tftpboot ${loadaddr} bora/boot_header
loadk=tftpboot ${loadaddr} ${bootfile}
loadvx=tftpboot ${loadaddr} ${vxfile}
mmcargs=setenv bootargs root=/dev/mmcblk0p${mmcpart} rootwait rw
mmcdev=0
mmcpart=2
mmcrecovery=mmc dev 0; mmc rescan; setenv recoverydev mmc; run recovery
modeboot=qspiboot
mtdids=nand0=pl353-nand
mtdparts=mtdparts=pl35x-nand:48M(data0),15M(data1),1M(data2),-(data3)
mtdparts1=mtdparts=pl353-nand:512K(spl),512K(uboot),256K(env1),256K(env2),4M(fpga),256K(fdt),4M(kernel),-(nand-ubi)
nand_erasesize=20000
nand_loadk=nand read ${loadaddr} kernel
nand_oobsize=40
nand_updatek=nand erase.part kernel; nand write ${loadaddr} nand-kernel ${filesize}
nand_writesize=800
nandargs=setenv bootargs ubi.mtd=7 root=ubi0_0 rootfstype=ubifs rw
net_nfs=ping ${serverip};run loadk loadfdt nfsargs addip addcons addmisc; run configid_fixupfdt; bootm ${loadaddr} - ${fdtaddr}
net_vx=run loadvx vxargs; bootvx ${loadaddr}
netmask=255.255.255.0
nfsargs=setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:${rootpath},tcp
normalboot=net_nfs
program_fpga=run loadfpga;fpga load 0 ${loadaddr} 0x${filesize}
qspiboot=echo Booting from QSPI: use net_nfs && run net_nfs
ramdisk_size=0x200000
recovery=if run loadbootscript; then run bootscript; fi
rootpath=/opt/nfsroot/bora/belk-4.0.0
script=boot.scr
serial#_DBXx=00C5
serverip=192.168.0.13
som_configid#=00000005
som_uniqueid#=3a11013a:40b52447
stderr=serial@e0001000
stdin=serial@e0001000
stdout=serial@e0001000
u-boot_base=0x80000
update=sf probe 0 0 0;sf erase ${u-boot_base} +${filesize};sf write ${loadaddr} ${u-boot_base} ${filesize}
updatefdt=sf probe 0 0 0;sf erase ${fdt_base} +${filesize};sf write ${fdtaddr} ${fdt_base} ${filesize}
updatefpga=sf probe 0 0 0;sf erase ${fpga_base} +${filesize};sf write ${loadaddr} ${fpga_base} ${filesize}
updatefsbl=sf probe 0 0 0;sf erase ${fsbl_base} +${filesize};sf write ${loadaddr} ${fsbl_base} ${filesize}
updatehdr=sf probe 0 0 0;sf erase ${header_base} +${filesize};sf write ${loadaddr} ${header_base} ${filesize}
updatek=sf probe 0 0 0;sf erase ${kernel_base} +${filesize};sf write ${loadaddr} ${kernel_base} ${filesize}
usbrecovery=usb start; usb dev 0; setenv recoverydev usb; run recovery
vxargs=setenv bootargs gem(0,0)host:vxWorks.st h=${serverip} e=${ipaddr} g=${gatewayip} tn=${hostname} u=target pw=vxTarget f=0x0
vxfile=bora/vxWorks
Environment size: 3823/262139 bytes
Bora> nand write ${loadaddr} 0 ${filesize}
NAND write: device 0 offset 0x0, size 0x8fc790
9422736 bytes written: OK
Bora> tftpboot ${loadaddr} borax/elt/bitstream.bit
Using ethernet@e000b000 device
TFTP from server 192.168.0.13; our IP address is 192.168.0.81
Filename 'borax/elt/bitstream.bit'.
Load address: 0x2080000
Loading: #################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
###############################################################
2.6 MiB/s
done
Bytes transferred = 5980021 (5b3f75 hex)
Bora> nand erase 3000000 f00000
NAND erase: device 0 offset 0x3000000, size 0xf00000
Erasing at 0x3ee0000 -- 100% complete.
OK
Bora> nand write ${loadaddr} 3000000 ${filesize}
NAND write: device 0 offset 0x3000000, size 0x5b3f75
5980021 bytes written: OK
Bora> nand erase 3f00000 100000
NAND erase: device 0 offset 0x3f00000, size 0x100000
Erasing at 0x3fe0000 -- 100% complete.
OK
Bora> tftpboot ${loadaddr} borax/elt/bora.dtb
Using ethernet@e000b000 device
TFTP from server 192.168.0.13; our IP address is 192.168.0.81
Filename 'borax/elt/bora.dtb'.
Load address: 0x2080000
Loading: ###
746.1 KiB/s
done
Bytes transferred = 15280 (3bb0 hex)
Bora> nand write ${loadaddr} 3f00000 ${filesize}
NAND write: device 0 offset 0x3f00000, size 0x3bb0
15280 bytes written: OK
Bora>
</pre>