Hi,
I am trying to bring up 2.6.20.3 on a MPC5200B based custom board. This
Kernel is based on the Phytec phyCore MPC5200B Mini BSP kernel and
adapted to my board.
So far I have troubles to get console output working when booting Linux.
Uboot console output is fine. Linux begins to run (I can set breakpoints
with the BDI2000 in the early initialization code) so I probably have a
misconfiguration of the console output inside the fdt.
The major difference between the Phytec phyCore 5200B mini fdt and mine
is that we use PSC1 instead of PSC3/6 for serial. Accordingly I changed
the fdt (or dts) values.
To get some more insights, I would like to know, in which Linux function
the console output is initialised ?
See the relevant outputs attached:
=========
## Booting image at 00500000 ...
Image Name: Linux-2.6.20-rt3-v38c
Created: 2007-05-30 13:10:27 UTC
Image Type: PowerPC Linux Kernel Image (gzip compressed)
Data Size: 970278 Bytes = 947.5 kB
Load Address: 00000000
Entry Point: 00000000
Verifying Checksum ... OK
Uncompressing Kernel Image ... OK
(no further output)
=========
If I dump the flat device tree inside uboot, I get the following
entries:
=========
Booting using flat device tree at 0x400000
{
model = "v38c";
compatible = [76 33 38 63 00 6d 70 63 35 32 30 30 62 00 6d 70 63 35
32 78 78 00];
#address-cells = <1>;
#size-cells = <1>;
cpus {
#cpus = <1>;
#address-cells = <1>;
#size-cells = <0>;
PowerPC,[EMAIL PROTECTED] {
device_type = "cpu";
reg = <0>;
d-cache-line-size = <20>;
i-cache-line-size = <20>;
d-cache-size = <4000>;
i-cache-size = <4000>;
timebase-frequency = <1f78a40>;
bus-frequency = <7de2900>;
clock-frequency = <179a7b00>;
32-bit;
};
};
memory {
device_type = "memory";
reg = <8>;
};
[EMAIL PROTECTED] {
#interrupt-cells = <3>;
device_type = "soc";
ranges = [00 00 00 00 f0 00 00 00 f0 01 00 00];
reg = <8>;
bus-frequency = <3ef1480>;
[EMAIL PROTECTED] {
compatible = [6d 70 63 35 32 30 30 62 2d 63 64 6d 00 6d 70
63 35 32 78 78 2d 63 64 6d 00];
reg = <8>;
};
[EMAIL PROTECTED] {
linux,phandle = <500>;
interrupt-controller;
#interrupt-cells = <3>;
device_type = "interrupt-controller";
compatible = [6d 70 63 35 32 30 30 62 2d 70 69 63 00 6d 70
63 35 32 78 78 2d 70 69 63 00];
reg = <8>;
built-in;
};
[EMAIL PROTECTED] {
compatible = [6d 70 63 35 32 30 30 62 2d 67 70 74 00 6d 70
63 35 32 78 78 2d 67 70 74 00];
device_type = "gpt";
reg = <8>;
interrupts = [00 00 00 01 00 00 00 09 00 00 00 00];
interrupt-parent = <500>;
};
[EMAIL PROTECTED] {
compatible = [6d 70 63 35 32 30 30 62 2d 67 70 74 00 6d 70
63 35 32 78 78 2d 67 70 74 00];
device_type = "gpt";
reg = <8>;
interrupts = [00 00 00 01 00 00 00 0a 00 00 00 00];
interrupt-parent = <500>;
};
[EMAIL PROTECTED] {
compatible = [6d 70 63 35 32 30 30 62 2d 67 70 74 00 6d 70
63 35 32 78 78 2d 67 70 74 00];
device_type = "gpt";
reg = <8>;
interrupts = [00 00 00 01 00 00 00 0b 00 00 00 00];
interrupt-parent = <500>;
};
[EMAIL PROTECTED] {
compatible = [6d 70 63 35 32 30 30 62 2d 67 70 74 00 6d 70
63 35 32 78 78 2d 67 70 74 00];
device_type = "gpt";
reg = <8>;
interrupts = [00 00 00 01 00 00 00 0c 00 00 00 00];
interrupt-parent = <500>;
};
[EMAIL PROTECTED] {
compatible = [6d 70 63 35 32 30 30 62 2d 67 70 74 00 6d 70
63 35 32 78 78 2d 67 70 74 00];
device_type = "gpt";
reg = <8>;
interrupts = [00 00 00 01 00 00 00 0d 00 00 00 00];
interrupt-parent = <500>;
};
[EMAIL PROTECTED] {
compatible = [6d 70 63 35 32 30 30 62 2d 67 70 74 00 6d 70
63 35 32 78 78 2d 67 70 74 00];
device_type = "gpt";
reg = <8>;
interrupts = [00 00 00 01 00 00 00 0e 00 00 00 00];
interrupt-parent = <500>;
};
[EMAIL PROTECTED] {
compatible = [6d 70 63 35 32 30 30 62 2d 67 70 74 00 6d 70
63 35 32 78 78 2d 67 70 74 00];
device_type = "gpt";
reg = <8>;
interrupts = [00 00 00 01 00 00 00 0f 00 00 00 00];
interrupt-parent = <500>;
};
[EMAIL PROTECTED] {
compatible = [6d 70 63 35 32 30 30 62 2d 67 70 74 00 6d 70
63 35 32 78 78 2d 67 70 74 00];
device_type = "gpt";
reg = <8>;
interrupts = [00 00 00 01 00 00 00 10 00 00 00 00];
interrupt-parent = <500>;
};
[EMAIL PROTECTED] {
compatible = [6d 70 63 35 32 30 30 62 2d 72 74 63 00 6d 70
63 35 32 78 78 2d 72 74 63 00];
device_type = "rtc";
reg = <8>;
interrupts = [00 00 00 01 00 00 00 05 00 00 00 00 00 00 00
01 00 00 00 06 00 00 00 00];
interrupt-parent = <500>;
};
[EMAIL PROTECTED] {
device_type = "mscan";
compatible = [6d 70 63 35 32 30 30 62 2d 6d 73 63 61 6e 00
6d 70 63 35 32 78 78 2d 6d 73 63 61 6e 00];
interrupts = [00 00 00 02 00 00 00 11 00 00 00 00];
interrupt-parent = <500>;
reg = <8>;
};
[EMAIL PROTECTED] {
device_type = "mscan";
compatible = [6d 70 63 35 32 30 30 62 2d 6d 73 63 61 6e 00
6d 70 63 35 32 78 78 2d 6d 73 63 61 6e 00];
interrupts = [00 00 00 02 00 00 00 12 00 00 00 00];
interrupt-parent = <500>;
reg = <8>;
};
[EMAIL PROTECTED] {
compatible = [6d 70 63 35 32 30 30 62 2d 67 70 69 6f 00 6d
70 63 35 32 78 78 2d 67 70 69 6f 00];
reg = <8>;
interrupts = [00 00 00 01 00 00 00 07 00 00 00 00];
interrupt-parent = <500>;
};
[EMAIL PROTECTED] {
compatible = [6d 70 63 35 32 30 30 62 2d 67 70 69 6f 2d 77
6b 75 70 00 6d 70 63 35 32 78 78 2d 67 70 69 6f 2d 77 6b 75 70 00];
reg = <8>;
interrupts = [00 00 00 01 00 00 00 08 00 00 00 00 00 00 00
00 00 00 00 03 00 00 00 00];
interrupt-parent = <500>;
};
[EMAIL PROTECTED] {
#interrupt-cells = <1>;
#size-cells = <2>;
#address-cells = <3>;
device_type = "pci";
compatible = [6d 70 63 35 32 30 30 62 2d 70 63 69 00 6d 70
63 35 32 78 78 2d 70 63 69 00];
reg = <8>;
interrupt-map-mask = [00 00 f8 00 00 00 00 00 00 00 00 00 00
00 00 07];
interrupt-map = [00 00 c0 00 00 00 00 00 00 00 00 00 00 00
00 01 00 00 05 00 00 00 00 00 00 00 00 00 00 00 00 03 00 00 c0 00 00 00
00 00 00 00 00 00 00 00 00 02 00 00 05 00 00 00 00 01 00 00 00 01 00 00
00 03 00 00 c0 00 00 00 00 00 00 00 00 00 00 00 00 03 00 00 05 00 00 00
00 01 00 00 00 02 00 00 00 03 00 00 c0 00 00 00 00 00 00 00 00 00 00 00
00 04 00 00 05 00 00 00 00 01 00 00 00 03 00 00 00 03 00 00 c8 00 00 00
00 00 00 00 00 00 00 00 00 01 00 00 05 00 00 00 00 01 00 00 00 01 00 00
00 03 00 00 c8 00 00 00 00 00 00 00 00 00 00 00 00 02 00 00 05 00 00 00
00 01 00 00 00 02 00 00 00 03 00 00 c8 00 00 00 00 00 00 00 00 00 00 00
00 03 00 00 05 00 00 00 00 01 00 00 00 03 00 00 00 03 00 00 c8 00 00 00
00 00 00 00 00 00 00 00 00 04 00 00 05 00 00 00 00 00 00 00 00 00 00 00
00 03];
clock-frequency = <0>;
interrupts = [00 00 00 02 00 00 00 08 00 00 00 00 00 00 00
02 00 00 00 09 00 00 00 00 00 00 00 02 00 00 00 0a 00 00 00 00];
interrupt-parent = <500>;
bus-range = <8>;
ranges = [42 00 00 00 00 00 00 00 80 00 00 00 80 00 00 00 00
00 00 00 20 00 00 00 02 00 00 00 00 00 00 00 a0 00 00 00 a0 00 00 00 00
00 00 00 10 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 b0 00 00 00 00
00 00 00 01 00 00 00];
};
[EMAIL PROTECTED] {
device_type = "spi";
compatible = [6d 70 63 35 32 30 30 62 2d 73 70 69 00 6d 70
63 35 32 78 78 2d 73 70 69 00];
reg = <8>;
interrupts = [00 00 00 02 00 00 00 0d 00 00 00 00 00 00 00
02 00 00 00 0e 00 00 00 00];
interrupt-parent = <500>;
};
[EMAIL PROTECTED] {
device_type = "usb-ohci-be";
compatible = [6d 70 63 35 32 30 30 62 2d 6f 68 63 69 00 6d
70 63 35 32 78 78 2d 6f 68 63 69 00 6f 68 63 69 2d 62 65 00];
reg = <8>;
interrupts = [00 00 00 02 00 00 00 06 00 00 00 00];
interrupt-parent = <500>;
};
[EMAIL PROTECTED] {
device_type = "dma-controller";
compatible = [6d 70 63 35 32 30 30 62 2d 62 65 73 74 63 6f
6d 6d 00 6d 70 63 35 32 78 78 2d 62 65 73 74 63 6f 6d 6d 00];
reg = <8>;
interrupts = [00 00 00 03 00 00 00 00 00 00 00 00 00 00 00
03 00 00 00 01 00 00 00 00 00 00 00 03 00 00 00 02 00 00 00 00 00 00 00
03 00 00 00 03 00 00 00 00 00 00 00 03 00 00 00 04 00 00 00 00 00 00 00
03 00 00 00 05 00 00 00 00 00 00 00 03 00 00 00 06 00 00 00 00 00 00 00
03 00 00 00 07 00 00 00 00 00 00 00 03 00 00 00 08 00 00 00 00 00 00 00
03 00 00 00 09 00 00 00 00 00 00 00 03 00 00 00 0a 00 00 00 00 00 00 00
03 00 00 00 0b 00 00 00 00 00 00 00 03 00 00 00 0c 00 00 00 00 00 00 00
03 00 00 00 0d 00 00 00 00 00 00 00 03 00 00 00 0e 00 00 00 00 00 00 00
03 00 00 00 0f 00 00 00 00];
interrupt-parent = <500>;
};
[EMAIL PROTECTED] {
compatible = [6d 70 63 35 32 30 30 62 2d 78 6c 62 00 6d 70
63 35 32 78 78 2d 78 6c 62 00];
reg = <8>;
};
[EMAIL PROTECTED] {
device_type = "serial";
compatible = [6d 70 63 35 32 30 30 62 2d 70 73 63 2d 75 61
72 74 00 6d 70 63 35 32 78 78 2d 70 73 63 2d 75 61 72 74 00];
port-number = <0>;
reg = <8>;
interrupts = [00 00 00 02 00 00 00 01 00 00 00 00];
interrupt-parent = <500>;
};
[EMAIL PROTECTED] {
device_type = "network";
compatible = [6d 70 63 35 32 30 30 62 2d 66 65 63 00 6d 70
63 35 32 78 78 2d 66 65 63 00];
reg = <8>;
mac-address = [00 e0 ee 00 28 0d];
interrupts = [00 00 00 02 00 00 00 05 00 00 00 00];
interrupt-parent = <500>;
};
[EMAIL PROTECTED] {
device_type = "i2c";
compatible = [6d 70 63 35 32 30 30 62 2d 69 32 63 00 6d 70
63 35 32 78 78 2d 69 32 63 00];
reg = <8>;
interrupts = [00 00 00 02 00 00 00 0f 00 00 00 00];
interrupt-parent = <500>;
};
[EMAIL PROTECTED] {
device_type = "i2c";
compatible = [6d 70 63 35 32 30 30 62 2d 69 32 63 00 6d 70
63 35 32 78 78 2d 69 32 63 00];
reg = <8>;
interrupts = [00 00 00 02 00 00 00 10 00 00 00 00];
interrupt-parent = <500>;
};
[EMAIL PROTECTED] {
device_type = "sram";
compatible = [6d 70 63 35 32 30 30 62 2d 73 72 61 6d 00 6d
70 63 35 32 78 78 2d 73 72 61 6d 00 73 72 61 6d 00];
reg = <8>;
};
};
chosen {
name = "chosen";
bootargs = "console=ttyPSC0,115200 root=/dev/nfs ip=dhcp
nfsroot=10.100.11.96:/home/danielsch/downloads/OSELAS.BSP-Phytec-phyCORE
-MPC5200B-tiny-5/root,v3,tcp";
linux,platform = <600>;
linux,stdout-path = "/[EMAIL PROTECTED]/[EMAIL PROTECTED]";
};
};
=========
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