Greetings All,
I am working on P1022RDK (P1022 Processor). I am trying to bring up LTIB Linux
only on Core1 of the processor. I have configured the "cpus" node in the device
tree file as following way
Cpus {
#address-cells = <1>;
#size-cells = <0>;
PowerPC,P1022@1 {
Device_type = "cpu";
Ret = <0x1>;
Next-level-cache = <&L2>;
};
};
Mpic: pic@40000 {
Interrupt-controller;
#address-cells = <0>;
#interrupt-cells = <2>;
Reg = <0x40000 0x40000>;
Compatible = "chrp,open-pic";
Device_type = "open-pic";
Pic-no-reset;
Protected-sources = <
16 // l2-cache-controller@20000
>;
};
I am loading the kernel from Uboot as following way
Setenv bootm_low 0x10000000
Setenv bootm_size 0x10000000
Setenv bootm boot=/dev/mmcblk0p3 ro debug rootdelay=5
Interrupts off
Bootm start $load1addr - $fdt1addr
Bootm loados
Bootm fdt
Fdt boardsetup
Fdt chosen
Bootm prep
Bootm go
Using above configuration when the kernel boots it fails giving following
message
[ 2.057448] WM8960 I2C Codec 1-001a: No platform data supplied
[ 3.062314] WM8960 I2C Codec 1-001a: Failed to issue reset
[ 3.067816] WM8960 I2C Codec: probe of 1-001a failed with error -110
[ 3.074528] No device for DAI WM8990 ADC/DAC Primary
[ 3.079834] ALSA device list:
[ 3.082821] No soundcards found.
[ 3.087561] IPv4 over IPv4 tunneling driver
[ 3.092757] GRE over IPv4 tunneling driver
[ 3.097871] TCP cubic registered
[ 3.101124] Initializing XFRM netlink socket
[ 3.105405] NET: Registered protocol family 17
[ 3.109869] NET: Registered protocol family 15
[ 3.114734] SCTP: Hash tables configured (established 8192 bind 8192)
[ 3.122984] drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
[ 3.129329] Waiting 5sec before mounting root device...
[ 8.138471] Root-NFS: No NFS server available, giving up.
[ 8.143896] VFS: Unable to mount root fs via NFS, trying floppy.
[ 8.150150] VFS: Cannot open root device "mmcblk0p3" or unknown-block(2,0)
[ 8.157038] Please append a correct "root=" boot option; here are the
available partitions:
[ 8.165410] Kernel panic - not syncing: VFS: Unable to mount root fs on
unknown-block(2,0)
[ 8.173681] Rebooting in 180 seconds..
[ 11.994301] mmc0: Timeout waiting for hardware interrupt.
[ 11.999870] sdhci: ============== REGISTER DUMP ==============
[ 12.005697] sdhci: Sys addr: 0x00000000 | Version: 0x00001201
[ 12.011523] sdhci: Blk size: 0x00000000 | Blk cnt: 0x00000001
[ 12.017349] sdhci: Argument: 0x00000000 | Trn mode: 0x00000000
[ 12.023175] sdhci: Present: 0xff8d0008 | Host ctl: 0x00000020
[ 12.029001] sdhci: Power: 0x00000003 | Blk gap: 0x00000000
[ 12.034828] sdhci: Wake-up: 0x00000000 | Clock: 0x000010ff
[ 12.040654] sdhci: Timeout: 0x00000000 | Int stat: 0x00000001
[ 12.046479] sdhci: Int enab: 0x007f0003 | Sig enab: 0x007f0003
[ 12.052305] sdhci: AC12 err: 0x00000000 | Slot int: 0x00001201
[ 12.058130] sdhci: Caps: 0x05f30000 | Max curr: 0x00000000
[ 12.063955] sdhci: ===========================================
When I boot the same kernel using 2 CPUs in the device tree file, it boots
successfully. Any thoughts on what I am missing.
Best Regards
Farrukh Arshad
Sr. Software Development Engineer
Mentor Graphics Pakistan
Ph: +92 - 423 - 609 - 92 - 09
Cell: +92 - 303 - 444 - 77 - 05
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