Re: loading NOR flash from DT

Sebastian Siewior
2007-10-17T19:55:47Z

* Josh Boyer | 2007-10-17 14:47:59 [-0500]:

>On Wed, 17 Oct 2007 21:26:51 +0200
>Sebastian Siewior <linuxppc-embedded@ml.breakpoint.cc> wrote:
>
>> Hello,
>>
>> I have here a MPC8544 DS board with NOR flash on it and Kumar's git
>> tree. I'm trying to detect this flash with the physmap_of module. I
>> added a nor_flash block (I used sequoia.dts as an example) into my
>> device tree on the same level as soc8544 or memory (or between them).
>> After modprobing physmap_of nothing happend. Then I tried to make a tree
>> with plb -> opb -> ebc and finally nor_flash but still nothing changed.
>>
>> Is there a user space dependency or did I just edit my device tree the
>> wrong way? Any hints are welcome :)
>
>Post your device tree please. I don't recall MPC8544 even having PLB,
>OPB, or EBC busses, so they likely aren't getting probed.

/*
* MPC8544 DS Device Tree Source
*
* 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 = "MPC8544DS";
compatible = "MPC8544DS", "MPC85xxDS";
#address-cells = <1>;
#size-cells = <1>;

cpus {
#cpus = <1>;
#address-cells = <1>;
#size-cells = <0>;

PowerPC,8544@0 {
device_type = "cpu";
reg = <0>;
d-cache-line-size = <20>; // 32 bytes
i-cache-line-size = <20>; // 32 bytes
d-cache-size = <8000>; // L1, 32K
i-cache-size = <8000>; // L1, 32K
timebase-frequency = <0>;
bus-frequency = <0>;
clock-frequency = <0>;
};
};

memory {
device_type = "memory";
reg = <00000000 00000000>; // Filled by U-Boot
};

flash@fc000000 {
compatible = "amd,s29gl512n", "cfi-flash";
reg = <fc000000 4000000>;
bank-width = <2>;
#address-cells = <1>;
#size-cells = <1>;
fs@0 {
label = "fs";
reg = <0 f80000>;
};
firmware@f80000 {
label ="firmware";
reg = <f80000 80000>;
read-only;
};

soc8544@e0000000 {
#address-cells = <1>;
#size-cells = <1>;
device_type = "soc";

ranges = <00000000 e0000000 00100000>;
reg = <e0000000 00001000>; // CCSRBAR 1M
bus-frequency = <0>; // Filled out by uboot.

memory-controller@2000 {
compatible = "fsl,8544-memory-controller";
reg = <2000 1000>;
interrupt-parent = <&mpic>;
interrupts = <12 2>;
};

l2-cache-controller@20000 {
compatible = "fsl,8544-l2-cache-controller";
reg = <20000 1000>;
cache-line-size = <20>; // 32 bytes
cache-size = <40000>; // L2, 256K
interrupt-parent = <&mpic>;
interrupts = <10 2>;
};

i2c@3000 {
device_type = "i2c";
compatible = "fsl-i2c";
reg = <3000 100>;
interrupts = <2b 2>;
interrupt-parent = <&mpic>;
dfsrr;
};

mdio@24520 {
#address-cells = <1>;
#size-cells = <0>;
device_type = "mdio";
compatible = "gianfar";
reg = <24520 20>;
phy0: ethernet-phy@0 {
interrupt-parent = <&mpic>;
interrupts = <a 1>;
reg = <0>;
device_type = "ethernet-phy";
};
phy1: ethernet-phy@1 {
interrupt-parent = <&mpic>;
interrupts = <a 1>;
reg = <1>;
device_type = "ethernet-phy";
};
};

ethernet@24000 {
#address-cells = <1>;
#size-cells = <0>;
device_type = "network";
model = "TSEC";
compatible = "gianfar";
reg = <24000 1000>;
local-mac-address = [ 00 00 00 00 00 00 ];
interrupts = <1d 2 1e 2 22 2>;
interrupt-parent = <&mpic>;
phy-handle = <&phy0>;
phy-connection-type = "rgmii-id";
};

ethernet@26000 {
#address-cells = <1>;
#size-cells = <0>;
device_type = "network";
model = "TSEC";
compatible = "gianfar";
reg = <26000 1000>;
local-mac-address = [ 00 00 00 00 00 00 ];
interrupts = <1f 2 20 2 21 2>;
interrupt-parent = <&mpic>;
phy-handle = <&phy1>;
phy-connection-type = "rgmii-id";
};

serial@4500 {
device_type = "serial";
compatible = "ns16550";
reg = <4500 100>;
clock-frequency = <0>;
interrupts = <2a 2>;
interrupt-parent = <&mpic>;
};

serial@4600 {
device_type = "serial";
compatible = "ns16550";
reg = <4600 100>;
clock-frequency = <0>;
interrupts = <2a 2>;
interrupt-parent = <&mpic>;
};

global-utilities@e0000 { //global utilities block
compatible = "fsl,mpc8548-guts";
reg = <e0000 1000>;
fsl,has-rstcr;
};

mpic: pic@40000 {
clock-frequency = <0>;
interrupt-controller;
#address-cells = <0>;
#interrupt-cells = <2>;
reg = <40000 40000>;
compatible = "chrp,open-pic";
device_type = "open-pic";
big-endian;
};
};

pci@e0008000 {
compatible = "fsl,mpc8540-pci";
device_type = "pci";
interrupt-map-mask = <f800 0 0 7>;
interrupt-map = <

/* IDSEL 0x11 J17 Slot 1 */
8800 0 0 1 &mpic 2 1
8800 0 0 2 &mpic 3 1
8800 0 0 3 &mpic 4 1
8800 0 0 4 &mpic 1 1

/* IDSEL 0x12 J16 Slot 2 */

9000 0 0 1 &mpic 3 1
9000 0 0 2 &mpic 4 1
9000 0 0 3 &mpic 2 1
9000 0 0 4 &mpic 1 1>;

interrupt-parent = <&mpic>;
interrupts = <18 2>;
bus-range = <0 ff>;
ranges = <02000000 0 c0000000 c0000000 0 20000000
01000000 0 00000000 e1000000 0 00010000>;
clock-frequency = <3f940aa>;
#interrupt-cells = <1>;
#size-cells = <2>;
#address-cells = <3>;
reg = <e0008000 1000>;
};

pcie@e0009000 {
compatible = "fsl,mpc8548-pcie";
device_type = "pci";
#interrupt-cells = <1>;
#size-cells = <2>;
#address-cells = <3>;
reg = <e0009000 1000>;
bus-range = <0 ff>;
ranges = <02000000 0 80000000 80000000 0 20000000
01000000 0 00000000 e1010000 0 00010000>;
clock-frequency = <1fca055>;
interrupt-parent = <&mpic>;
interrupts = <1a 2>;
interrupt-map-mask = <f800 0 0 7>;
interrupt-map = <
/* IDSEL 0x0 */
0000 0 0 1 &mpic 4 1
0000 0 0 2 &mpic 5 1
0000 0 0 3 &mpic 6 1
0000 0 0 4 &mpic 7 1
>;
pcie@0 {
reg = <0 0 0 0 0>;
#size-cells = <2>;
#address-cells = <3>;
device_type = "pci";
ranges = <02000000 0 80000000
02000000 0 80000000
0 20000000

01000000 0 00000000
01000000 0 00000000
0 00010000>;
};
};

pcie@e000a000 {
compatible = "fsl,mpc8548-pcie";
device_type = "pci";
#interrupt-cells = <1>;
#size-cells = <2>;
#address-cells = <3>;
reg = <e000a000 1000>;
bus-range = <0 ff>;
ranges = <02000000 0 a0000000 a0000000 0 10000000
01000000 0 00000000 e1020000 0 00010000>;
clock-frequency = <1fca055>;
interrupt-parent = <&mpic>;
interrupts = <19 2>;
interrupt-map-mask = <f800 0 0 7>;
interrupt-map = <
/* IDSEL 0x0 */
0000 0 0 1 &mpic 0 1
0000 0 0 2 &mpic 1 1
0000 0 0 3 &mpic 2 1
0000 0 0 4 &mpic 3 1
>;
pcie@0 {
reg = <0 0 0 0 0>;
#size-cells = <2>;
#address-cells = <3>;
device_type = "pci";
ranges = <02000000 0 a0000000
02000000 0 a0000000
0 10000000

01000000 0 00000000
01000000 0 00000000
0 00010000>;
};
};

pcie@e000b000 {
compatible = "fsl,mpc8548-pcie";
device_type = "pci";
#interrupt-cells = <1>;
#size-cells = <2>;
#address-cells = <3>;
reg = <e000b000 1000>;
bus-range = <0 ff>;
ranges = <02000000 0 b0000000 b0000000 0 00100000
01000000 0 00000000 b0100000 0 00100000>;
clock-frequency = <1fca055>;
interrupt-parent = <&mpic>;
interrupts = <1b 2>;
interrupt-map-mask = <fb00 0 0 0>;
interrupt-map = <
// IDSEL 0x1c USB
e000 0 0 0 &i8259 c 2
e100 0 0 0 &i8259 9 2
e200 0 0 0 &i8259 a 2
e300 0 0 0 &i8259 b 2

// IDSEL 0x1d Audio
e800 0 0 0 &i8259 6 2

// IDSEL 0x1e Legacy
f000 0 0 0 &i8259 7 2
f100 0 0 0 &i8259 7 2

// IDSEL 0x1f IDE/SATA
f800 0 0 0 &i8259 e 2
f900 0 0 0 &i8259 5 2
>;

pcie@0 {
reg = <0 0 0 0 0>;
#size-cells = <2>;
#address-cells = <3>;
device_type = "pci";
ranges = <02000000 0 b0000000
02000000 0 b0000000
0 00100000

01000000 0 00000000
01000000 0 00000000
0 00100000>;

uli1575@0 {
reg = <0 0 0 0 0>;
#size-cells = <2>;
#address-cells = <3>;
ranges = <02000000 0 b0000000
02000000 0 b0000000
0 00100000

01000000 0 00000000
01000000 0 00000000
0 00100000>;
isa@1e {
device_type = "isa";
#interrupt-cells = <2>;
#size-cells = <1>;
#address-cells = <2>;
reg = <f000 0 0 0 0>;
ranges = <1 0
01000000 0 0
00001000>;
interrupt-parent = <&i8259>;

i8259: interrupt-controller@20 {
reg = <1 20 2
1 a0 2
1 4d0 2>;
interrupt-controller;
device_type = "interrupt-controller";
#address-cells = <0>;
#interrupt-cells = <2>;
compatible = "chrp,iic";
interrupts = <9 2>;
interrupt-parent = <&mpic>;
};

i8042@60 {
#size-cells = <0>;
#address-cells = <1>;
reg = <1 60 1 1 64 1>;
interrupts = <1 3 c 3>;
interrupt-parent = <&i8259>;

keyboard@0 {
reg = <0>;
compatible = "pnpPNP,303";
};

mouse@1 {
reg = <1>;
compatible = "pnpPNP,f03";
};
};

rtc@70 {
compatible = "pnpPNP,b00";
reg = <1 70 2>;
};

gpio@400 {
reg = <1 400 80>;
};
};
};
};

};
};

>
>josh

Sebastian