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-----Original Message-----
From: Anatolij Gustschin [mailto:agust@denx.de]=20
Sent: marted=EC 2 settembre 2008 23.28
To: SETTE AGOSTINO - technolabs
Cc: <redacted>
Subject: Re: MPC8568MDS RAMDISK Problem
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Hi Agostino,
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SETTE AGOSTINO - technolabs wrote:
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quoted
I updated my u-boot
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U-Boot 1.3.4-00253-g33aa4ea (Sep 2 2008 - 13:04:22)
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CPU: 8568E, Version: 1.1, (0x807d0011)
Core: E500, Version: 2.2, (0x80210022)
Clock Configuration:
CPU:1320 MHz, CCB: 528 MHz,
DDR: 264 MHz (528 MT/s data rate), LBC: 132 MHz
L1: D-cache 32 kB enabled
I-cache 32 kB enabled
Board: 8568 MDS
I2C: ready
DRAM: Initializing
SDRAM: 64 MB
DDR: 512 MB
FLASH: 32 MB
L2: 512 KB enabled
PCI: 32 bit, 66 MHz, async, host, arbiter
Scanning PCI bus 00
PCI on bus 00 - 00
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PCIE connected to slot as Root Complex (base address e000a000)
PCIE on bus 01 - 01
In: serial
Out: serial
Err: serial
Net: eTSEC0, eTSEC1, FSL UEC0, FSL UEC1
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33 more quoted lines
Yes, it does:
aliases {
ethernet0 =3D &enet0;
ethernet1 =3D &enet1;
ethernet2 =3D &enet2;
ethernet3 =3D &enet3;
serial0 =3D &serial0;
serial1 =3D &serial1;
pci0 =3D &pci0;
pci1 =3D &pci1;
};
serial0: serial@4500 {
cell-index =3D <0>;
device_type =3D "serial";
compatible =3D "ns16550";
reg =3D <4500 100>;
clock-frequency =3D <0>;
interrupts =3D <2a 2>;
interrupt-parent =3D <&mpic>;
};
serial1: serial@4600 {
cell-index =3D <1>;
device_type =3D "serial";
compatible =3D "ns16550";
reg =3D <4600 100>;
clock-frequency =3D <0>;
interrupts =3D <2a 2>;
interrupt-parent =3D <&mpic>;
};How do you compile your mpc8568mds.dtb DTB and which dtc version
are you using to compile it?
./dtc -o results/mpc8568mds.dtb -O dtb =
linux/arch/powerpc/boot/dts/mpc8568mds.dts -S 0x2000 -R 4
Version: DTC 1.0.0-gd6f9b62f
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quoted
Do I need to add some environment variables or set some fdt=20
commands before booting the board?
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The mpc8568mds.dts from 2.6.25.5 kernel seems to be Ok. Booting
should work if you use this mpc8568mds.dts file. The problem
could also be somewhere in U-Boot environment setup.
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quoted
Here are the env variables
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=3D> printenv
ramboot=3Drun ramargs;tftp $ramdiskaddr $ramdiskfile;tftp=20
$loadaddr $bootfile;bootm $loadaddr $ramdiskaddr
quoted
nfsboot=3Drun nfsargs;tftp $loadaddr $bootfile;tftp $fdtaddr=20
$fdtfile;bootm $loadaddr - $fdtaddr
quoted
bootdelay=3D10
baudrate=3D115200
loads_echo=3D1
ethaddr=3D00:E0:0C:00:00:FD
eth1addr=3D00:E0:0C:00:01:FD
eth2addr=3D00:E0:0C:00:02:FD
eth3addr=3D00:E0:0C:00:03:FD
rootpath=3D/nfsroot
gatewayip=3D192.168.1.1
netmask=3D255.255.255.0
bootfile=3Dyour.uImage
netdev=3Deth0
consoledev=3DttyS0
ramdiskaddr=3D600000
ramdiskfile=3Dyour.ramdisk.u-boot
fdtaddr=3D400000
fdtfile=3Dyour.fdt.dtb
nfsargs=3Dsetenv bootargs root=3D/dev/nfs rw=20
nfsroot=3D$serverip:$rootpath=20
ip=3D$ipaddr:$serverip:$gatewayip:$netmask:$hostname:$netdev:off
console=3D$consoledev,$bau
quoted
drate $othbootargs
ramargs=3Dsetenv bootargs root=3D/dev/ram rw=20
console=3D$consoledev,$baudrate $othbootargs
quoted
ethact=3DeTSEC0
7 more quoted lines
mtdargs=3Dmtdparts=3Dphysmap-flash.0:1M(boot),7M(aps0),7M(aps1),1M(optusr=
)
quoted
pram=3D0x100000
mem=3D0x3f00000
pram_start=3D0x3f00000
loadaddr=3D0x2000000
aps0_fl_start=3D0xfe100000
aps0_fl_size=3D0x00700000
aps1_fl_start=3D0xfe800000
aps1_fl_end=3D0xfeefffff
aps1_fl_size=3D0x00700000
aps_ram_start=3D0x2000000
aps_ram_kernel_start=3D0x2000100
aps_ram_dtb_start=3D0x21f0100
aps_ram_rootfs_start=3D0x2200100
aps=3D0
dl_boot=3Dtftp ${aps_ram_start} "u-boot.bin" && protect off=20
0xfe000000 0xfe07ffff && cp.b ${aps_ram_start} 0xfe000000=20
${filesize} && protect on 0xfe000000 0xfquoted
e07ffff && saveenv
bootcmd=3Dif itest ${aps} =3D=3D 0; then run dl_ram0; else run =
dl_ram1;fi
quoted
altbootcmd=3Dmw.b ${pram_start} 0 ${pram} && if itest ${aps}=20
=3D=3D 0; then setenv aps 1; else setenv aps 0; fi; saveenv; run =
bootcmd
quoted
dl_ram0=3Dcp.b ${aps0_fl_start} ${aps_ram_start}=20
${aps0_fl_size};if imi ${aps_ram_kernel_start}; then run=20
bargs;bootm ${aps_ram_kernel_start} ${aps_ram_rootfsquoted
_start} ${aps_ram_dtb_start}; else reset; fi
dl_ram1=3Dcp.b ${aps1_fl_start} ${aps_ram_start}=20
${aps1_fl_size};if imi ${aps_ram_kernel_start}; then run=20
bargs;bootm ${aps_ram_kernel_start} ${aps_ram_rootfsquoted
_start} ${aps_ram_dtb_start}; else reset; fi
bootlimit=3D5
initrd_high=3Dno
hostname=3DMPC8568MDS
aps0_fl_end=3D0xfe7fffff
dl_aps0=3Dtftp ${aps_ram_start} ${myaps};erase=20
${aps0_fl_start} ${aps0_fl_end};cp.b ${aps_ram_start}=20
${aps0_fl_start} ${filesize};bootquoted
dl_aps1=3Dtftp ${aps_ram_start} ${myaps};erase=20
${aps1_fl_start} ${aps1_fl_end};cp.b ${aps_ram_start}=20
${aps1_fl_start} ${filesize};bootquoted
bargs=3Dsetenv bootargs ${mtdargs} console=3DttyS0,$baudrate=20
root=3D/dev/ram ramdisk_size=3D500000 rw=20
ip=3D${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}:equoted
th0:off panic=3D1 mem=3D${mem} aps=3D${aps} ${misc} ${slram}
dl_mykernel=3Dtftp 1000000 MPC8568MDS/uImage; erase ff800000=20
ff9fffff; cp.b 1000000 ff800000 ${filesize}quoted
dl_myrootfs=3Dtftp 2000000 MPC8568MDS/RamDisk.ext2; erase=20
ffa00000 ffefffff; cp.b 2000000 ffa00000 ${filesize}quoted
dl_mydtb=3Dtftp 400000 MPC8568MDS/mpc8568mds.dtb; erase=20
fff00000 fff7ffff; cp.b 400000 fff00000 ${filesize}quoted
fdt_file=3DMPC8568MDS/mpc8568mds.dtb
fdt_addr_r=3D0x21f0100
stdin=3Dserial
stdout=3Dserial
stderr=3Dserial
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With previous u-boot I was able to load the images=20
separately, with this u-boot I have the error.
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What commands do you use to load kernel, ramdisk and dtb files?=20
run dl_aps0
But to load the images separately I do the following
run dl_mykernel
run dl_myrootfs
run dl_mydtb
run ramargs
bootm ff800000 ffa00000 400000
It is not obvious from the environment above.
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Best regargs,
Anatolij
I am taking a look at the U-Boot files and I made the following =
modification (at the moment I am using U-Boot received by Freescale =
U-Boot 1.3.0-rc3, quite old) on the file common/cmd.bootm.c
diff Mycmd_bootm.c u-boot-1.3.0-rc3/common/cmd_bootm.c
955c955
< of_start =3D (ulong)kbd - of_len;
---
of_start =3D (ulong)kbd - of_len - len;
1017c1017
< of_start =3D (ulong)kbd - of_len - 8192;
---
of_start =3D (ulong)kbd - of_len - len - 8192;
I added len to avoid that Ramdisk area is overwritten when loading the =
Device Tree. With this modification I am now able to load kernel, rootfs =
and dtb correctly and all as one image file
Best Regards
Agostino
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DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-0 Fax: +49-8142-66989-80 Email: office@denx.de
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