device tree question
Alan Bennett
embedded at akb.net
Fri Sep 21 03:53:56 EST 2007
Ok, making progress on the ep8248 / devtrees, etc...
But I'm not getting any output on the serial and my log_buf is pretty
clean. Without console; what's the best way to figure out why I'm not
getting any output on my SMC1 serial port (using u-boot , not planetcore)?
-Alan
__log_buf:
Using Embedded Planet EP8248E machine description.
Linux version 2.6.23-rc6-g943401ab-dirty (root at fremont) (gcc version 3.4.5)
#3 Wed Sep 19 12:51:18 MDT 2007.
Entering add_active_range(0, 0, 32768) 0 entries of 256 used.
Top of RAM: 0x8000000, Total RAM: 0x8000000.
Memory hole size: 0MB.
Zone PFN ranges:.
DMA 0 -> 32768.
Normal 32768 -> 32768.
Movable zone start PFN for each node.
early_node_map[1] active PFN ranges.
0: 0 -> 32768.
On node 0 totalpages: 32768.
DMA zone: 256 pages used for memmap.
DMA zone: 0 pages reserved.
DMA zone: 32512 pages, LIFO batch:7.
Normal zone: 0 pages used for memmap.
Movable zone: 0 pages used for memmap.
Built 1 zonelists in Zone order. Total pages: 32512.
Kernel command line: root=/dev/nfs ip=192.168.10.45:::255.255.255.0::eth1
nfsroot=192.168.10.5:/fh/rfs rw .
PID hash table entries: 512 (order: 9, 2048 bytes).
time_init: decrementer frequency = 16.500000 MHz.
time_init: processor frequency = 231.000000 MHz..
dts file:
/*
* Device Tree for the Embedded Planet EP8248E board.
*
* Copyright 2007 Freescale Semiconductor Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
/ {
model = "EP8248E";
compatible = "fsl,ep8248e";
#address-cells = <1>;
#size-cells = <1>;
cpus {
#address-cells = <1>;
#size-cells = <0>;
PowerPC,8248 at 0 {
device_type = "cpu";
reg = <0>;
d-cache-line-size = <d#32>;
i-cache-line-size = <d#32>;
d-cache-size = <d#16384>;
i-cache-size = <d#16384>;
timebase-frequency = <0>;
clock-frequency = <0>;
};
};
CS: chipselect {
compatible = "fsl,ep8248e-chipselect",
"fsl,mpc8248-chipselect",
"fsl,pq2-chipselect";
#address-cells = <2>;
#size-cells = <1>;
fsl,ctrl = <&CSCTRL>;
ranges = <0 0 f8000000 07f00000
0 1 fff00000 00080000
0 2 fff80000 00080000
1 0 e4000000 00008000
2 0 d0000000 08000000>;
/* F800_0000 -> FFF0_0000 */
flash at 0,0 {
compatible = "cfi-flash";
reg = <0 0 7F00000>;
probe-type = "CFI";
bank-width = <4>;
};
/* FFF0_0000 -> FFF7_FFFF */
flash at 0,1 {
device_type = "rom";
compatible = "direct-mapped";
reg = <0 0 80000>;
probe-type = "CFI";
bank-width = <4>;
};
/* FFF8_0000 -> FFFF_FFFF */
flash at 0,2 {
compatible = "cfi-flash";
reg = <0 0 80000>;
probe-type = "CFI";
bank-width = <4>;
};
/* F400_0000 */
bcsr at 1,0 {
#address-cells = <2>;
#size-cells = <1>;
reg = <1 0 10>;
compatible = "fsl,ep8248e-bcsr";
ranges;
mdio {
device_type = "mdio";
compatible = "fsl,ep8248e-mdio-bitbang";
#address-cells = <1>;
#size-cells = <0>;
reg = <1 8 1>;
PHY0: ethernet-phy at 0 {
interrupt-parent = <&PIC>;
reg = <0>;
device_type = "ethernet-phy";
};
PHY1: ethernet-phy at 1 {
interrupt-parent = <&PIC>;
reg = <1>;
device_type = "ethernet-phy";
};
};
};
/* D000_0000 -> D7FF_FFFF */
flash at 2,0 {
compatible = "cfi-flash";
reg = <0 0 08000000>;
probe-type = "CFI";
bank-width = <4>;
};
};
memory {
device_type = "memory";
reg = <0 0>;
};
soc at f0000000 {
#address-cells = <1>;
#size-cells = <1>;
device_type = "soc";
compatible = "fsl,mpc8248", "fsl,pq2-soc";
ranges = <00000000 f0000000 00053000>;
CSCTRL: chipselect {
compatible = "fsl,mpc8248-chipselect-ctrl",
"fsl,pq2-chipselect-ctrl";
reg = <10100 40>;
fsl,bus = <&CS>;
};
cpm at 119c0 {
#address-cells = <1>;
#size-cells = <1>;
#interrupt-cells = <2>;
compatible = "fsl,mpc8248-cpm", "fsl,cpm2";
reg = <119c0 30 0 1100>;
ranges;
brg at 119f0 {
compatible = "fsl,mpc8272-brg",
"fsl,cpm2-brg",
"fsl,cpm-brg";
reg = <119f0 10 115f0 10>;
};
/* Monitor port/SMC1 */
serial at 11a80 {
device_type = "serial";
compatible = "fsl,mpc8248-smc-uart",
"fsl,cpm2-smc-uart";
reg = <11a80 20 1100 40>;
interrupts = <4 8>;
interrupt-parent = <&PIC>;
fsl,cpm-brg = <7>;
fsl,cpm-command = <1d000000>;
linux,planetcore-label = "SMC1";
};
/* "Serial" port/SCC1 */
serial at 11a00 {
device_type = "serial";
compatible = "fsl,mpc8248-scc-uart",
"fsl,cpm2-scc-uart";
reg = <11a00 20 8000 100>;
interrupts = <28 8>;
interrupt-parent = <&PIC>;
fsl,cpm-brg = <1>;
fsl,cpm-command = <00800000>;
linux,planetcore-label = "SCC1";
};
ethernet at 11300 {
device_type = "network";
compatible = "fsl,mpc8248-fcc-enet",
"fsl,cpm2-fcc-enet";
reg = <11300 20 8400 100 11390 1>;
local-mac-address = [ 00 00 00 00 00 00 ];
interrupts = <20 8>;
interrupt-parent = <&PIC>;
phy-handle = <&PHY0>;
linux,network-index = <0>;
fsl,cpm-command = <12000300>;
};
ethernet at 11320 {
device_type = "network";
compatible = "fsl,mpc8248-fcc-enet",
"fsl,cpm2-fcc-enet";
reg = <11320 20 8500 100 113b0 1>;
local-mac-address = [ 00 00 00 00 00 00 ];
interrupts = <21 8>;
interrupt-parent = <&PIC>;
phy-handle = <&PHY1>;
linux,network-index = <1>;
fsl,cpm-command = <16200300>;
};
usb at 11b60 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "fsl,mpc8248-usb",
"fsl,cpm2-usb";
reg = <11b60 18 8b00 100>;
interrupt-parent = <&PIC>;
interrupts = <b 8>;
fsl,cpm-command = <2e600000>;
};
};
PIC: interrupt-controller at 10c00 {
#interrupt-cells = <2>;
interrupt-controller;
reg = <10c00 80>;
compatible = "fsl,mpc8248-pic", "fsl,pq2-pic";
};
};
};
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