If this should go in linuxppc-embedded please let me know. It seems that
the board supports are getting posted here.
PIKA has an embedded PPC440EP board based on the AMCC Yosemite board. I
got the Linux 2.6.19.2 kernel working by basically copying the Yosemite
configuration. Now I am trying to move from the ppc to the powerpc
architecture using Josh Boyer's for-2.6.25 kernel. And there is no
Yosemite config :( We are using u-boot 1.3.0.
I have the kernel booting, but the OS runs very strange. I cannot run
the ash shell, it fails on the first setjmp. But I can run the hush
shell (we are using busybox). So it goes, many things work, others don't.
I am mounting the root filesystem over NFS, so the ethernet seem to work
well.
But cat /proc/interrupts shows:
CPU0
16: 126 UIC Level serial
17: 520 UIC Level MAL TX EOB
18: 804 UIC Level MAL RX EOB
19: 0 UIC Level MAL SERR
20: 0 UIC Level MAL TX DE
21: 0 UIC Level MAL RX DE
28: 0 UIC Level EMAC
BAD: 0
Which is quite different from the older kernel:
CPU0
0: 3075 UIC0 Level serial
2: 1526 UIC0 Level IBM IIC
7: 0 UIC0 Level IBM IIC
10: 1388 UIC0 Level MAL TX EOB
11: 1839 UIC0 Level MAL RX EOB
32: 0 UIC1 Level MAL SERR
33: 0 UIC1 Level MAL TX DE
34: 0 UIC1 Level MAL RX DE
40: 1 UIC1 Level ohci_hcd:usb1
60: 0 UIC1 Level EMAC
BAD: 0
I have attached the dts file. It is based on the bamboo. I can provide
any other config, the only thing I can't provide is the hardware ;)
Since the new kernel doesn't show UIC0 or UIC1, just UIC I am wondering
if something is wrong with the dts.
I have to admit the dts file confuses me a bit. So I suspect that is
where the problem is. If anybody has any other ideas, don't hesitate to
suggest!
Cheers,
Sean
/*
* Device Tree Source for PIKA Taco
*
* Copyright 2007 PIKA Technologies
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without
* any warranty of any kind, whether express or implied.
*/
/ {
#address-cells = <2>;
#size-cells = <1>;
model = "pika,taco";
compatible = "pika,taco";
dcr-parent = <&/cpus/[EMAIL PROTECTED]>;
aliases {
ethernet0 = &EMAC0;
serial0 = &UART0;
};
cpus {
#address-cells = <1>;
#size-cells = <0>;
[EMAIL PROTECTED] {
device_type = "cpu";
model = "PowerPC,440EP";
reg = <0>;
clock-frequency = <0>; /* Filled in by zImage */
timebase-frequency = <0>; /* Filled in by zImage */
i-cache-line-size = <20>;
d-cache-line-size = <20>;
i-cache-size = <8000>;
d-cache-size = <8000>;
dcr-controller;
dcr-access-method = "native";
};
};
memory {
device_type = "memory";
reg = <0 0 0>; /* Filled in by zImage */
};
UIC0: interrupt-controller0 {
compatible = "ibm,uic-440ep","ibm,uic";
interrupt-controller;
cell-index = <0>;
dcr-reg = <0c0 009>;
#address-cells = <0>;
#size-cells = <0>;
#interrupt-cells = <2>;
};
UIC1: interrupt-controller1 {
compatible = "ibm,uic-440ep","ibm,uic";
interrupt-controller;
cell-index = <1>;
dcr-reg = <0d0 009>;
#address-cells = <0>;
#size-cells = <0>;
#interrupt-cells = <2>;
interrupts = <1e 4 1f 4>; /* cascade */
interrupt-parent = <&UIC0>;
};
SDR0: sdr {
compatible = "ibm,sdr-440ep";
dcr-reg = <00e 002>;
};
CPR0: cpr {
compatible = "ibm,cpr-440ep";
dcr-reg = <00c 002>;
};
plb {
compatible = "ibm,plb-440ep", "ibm,plb-440gp", "ibm,plb4";
#address-cells = <2>;
#size-cells = <1>;
ranges;
clock-frequency = <0>; /* Filled in by zImage */
SDRAM0: sdram {
compatible = "ibm,sdram-440ep", "ibm,sdram-405gp";
dcr-reg = <010 2>;
};
DMA0: dma {
compatible = "ibm,dma-440ep", "ibm,dma-440gp";
dcr-reg = <100 027>;
};
MAL0: mcmal {
compatible = "ibm,mcmal-440ep", "ibm,mcmal-440gp",
"ibm,mcmal";
dcr-reg = <180 62>;
num-tx-chans = <4>;
num-rx-chans = <2>;
interrupt-parent = <&MAL0>;
interrupts = <0 1 2 3 4>;
#interrupt-cells = <1>;
#address-cells = <0>;
#size-cells = <0>;
interrupt-map = </*TXEOB*/ 0 &UIC0 a 4
/*RXEOB*/ 1 &UIC0 b 4
/*SERR*/ 2 &UIC1 0 4
/*TXDE*/ 3 &UIC1 1 4
/*RXDE*/ 4 &UIC1 2 4>;
};
POB0: opb {
compatible = "ibm,opb-440ep", "ibm,opb-440gp",
"ibm,opb";
#address-cells = <1>;
#size-cells = <1>;
ranges = <00000000 0 00000000 80000000
80000000 0 80000000 80000000>;
interrupt-parent = <&UIC1>;
interrupts = <7 4>;
clock-frequency = <0>; /* Filled in by zImage */
EBC0: ebc {
compatible = "ibm,ebc-440ep", "ibm,ebc-440gp",
"ibm,ebc";
dcr-reg = <012 2>;
#address-cells = <2>;
#size-cells = <1>;
clock-frequency = <0>; /* Filled in by zImage */
interrupts = <5 1>;
interrupt-parent = <&UIC1>;
};
UART0: [EMAIL PROTECTED] {
device_type = "serial";
compatible = "ns16550";
reg = <ef600300 8>;
virtual-reg = <ef600300>;
clock-frequency = <0>; /* Filled in by zImage */
current-speed = <1c200>;
interrupt-parent = <&UIC0>;
interrupts = <0 4>;
};
IIC0: [EMAIL PROTECTED] {
device_type = "i2c";
compatible = "ibm,iic-440ep", "ibm,iic-440gp",
"ibm,iic";
reg = <ef600700 14>;
interrupt-parent = <&UIC0>;
interrupts = <2 4>;
};
IIC1: [EMAIL PROTECTED] {
device_type = "i2c";
compatible = "ibm,iic-440ep", "ibm,iic-440gp",
"ibm,iic";
reg = <ef600800 14>;
interrupt-parent = <&UIC0>;
interrupts = <7 4>;
};
ZMII0: [EMAIL PROTECTED] {
device_type = "zmii-interface";
compatible = "ibm,zmii-440ep",
"ibm,zmii-440gp", "ibm,zmii";
reg = <ef600d00 c>;
};
EMAC0: [EMAIL PROTECTED] {
linux,network-index = <0>;
device_type = "network";
compatible = "ibm,emac-440ep",
"ibm,emac-440gp", "ibm,emac";
interrupt-parent = <&UIC1>;
interrupts = <1c 4 1d 4>;
reg = <ef600e00 70>;
local-mac-address = [000000000000];
mal-device = <&MAL0>;
mal-tx-channel = <0 1>;
mal-rx-channel = <0>;
cell-index = <0>;
max-frame-size = <5dc>;
rx-fifo-size = <1000>;
tx-fifo-size = <800>;
phy-mode = "rmii";
phy-map = <00000000>;
zmii-device = <&ZMII0>;
zmii-channel = <0>;
};
[EMAIL PROTECTED] {
compatible = "ohci-be";
reg = <ef601000 80>;
interrupts = <8 1 9 1>;
interrupt-parent = < &UIC1 >;
};
};
};
chosen {
linux,stdout-path = "/plb/opb/[EMAIL PROTECTED]";
};
};
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