* [Doubt] PPC Linux Device Tree Update
@ 2012-06-11 7:52 Kay One
2012-06-11 20:14 ` Scott Wood
0 siblings, 1 reply; 2+ messages in thread
From: Kay One @ 2012-06-11 7:52 UTC (permalink / raw)
To: linuxppc-dev
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Hi All,
Currently I am working on p1020rdb soc for some kernel bringing up activity.
I have come across one requirement to update the memory map (MMAP) of
kernel from evaluation board to
some other board who is having the same soc.
for my eval board I have used the p1020rdb.dts file from 2.6.38 standard
kernel source. (PFA) which is working almost fine.
But, I am really not able to find the following mapping as a part of the
attached dts file what I am using.
Can anyone please point me out that dts file is the only one to search out
following base addresses selected in memory map or is there
some specific file of kernel inside which I will be able to search through
to find the following base addresses?
FFFF_F000 4 KB .bootpg FFE0_0000 1 MB CCSR EC00_0000 64 MB Flash + alias
8000_0000 1 GB PCI[1:2] mem FFC0_0000 256 KB PCI[1:2] I/O FFB0_0000 1 MB
VTSS FFA0_0000 1 MB CPLD FF80_0000 1 MB NAND 0000_0000 1 GB DDR
So that I can update that address with the newly address given by the
vendor of new board on which I am
porting the ppc kernel.
Any help appreciated,
Karnik jain
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/*
* P1020 RDB Device Tree Source
*
* Copyright 2009 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.
*/
/dts-v1/;
/ {
model = "fsl,P1020";
compatible = "fsl,P1020RDB";
#address-cells = <2>;
#size-cells = <2>;
aliases {
serial0 = &serial0;
serial1 = &serial1;
ethernet0 = &enet0;
ethernet1 = &enet1;
ethernet2 = &enet2;
pci0 = &pci0;
pci1 = &pci1;
};
cpus {
#address-cells = <1>;
#size-cells = <0>;
PowerPC,P1020@0 {
device_type = "cpu";
reg = <0x0>;
next-level-cache = <&L2>;
};
PowerPC,P1020@1 {
device_type = "cpu";
reg = <0x1>;
next-level-cache = <&L2>;
};
};
memory {
device_type = "memory";
};
localbus@ffe05000 {
#address-cells = <2>;
#size-cells = <1>;
compatible = "fsl,p1020-elbc", "fsl,elbc", "simple-bus";
reg = <0 0xffe05000 0 0x1000>;
interrupts = <19 2>;
interrupt-parent = <&mpic>;
/* NOR, NAND Flashes and Vitesse 5 port L2 switch */
ranges = <0x0 0x0 0x0 0xef000000 0x01000000
0x1 0x0 0x0 0xffa00000 0x00040000
0x2 0x0 0x0 0xffb00000 0x00020000>;
nor@0,0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "cfi-flash";
reg = <0x0 0x0 0x1000000>;
bank-width = <2>;
device-width = <1>;
partition@0 {
/* This location must not be altered */
/* 256KB for Vitesse 7385 Switch firmware */
reg = <0x0 0x00040000>;
label = "NOR (RO) Vitesse-7385 Firmware";
read-only;
};
partition@40000 {
/* 256KB for DTB Image */
reg = <0x00040000 0x00040000>;
label = "NOR (RO) DTB Image";
read-only;
};
partition@80000 {
/* 3.5 MB for Linux Kernel Image */
reg = <0x00080000 0x00380000>;
label = "NOR (RO) Linux Kernel Image";
read-only;
};
partition@400000 {
/* 11MB for JFFS2 based Root file System */
reg = <0x00400000 0x00b00000>;
label = "NOR (RW) JFFS2 Root File System";
};
partition@f00000 {
/* This location must not be altered */
/* 512KB for u-boot Bootloader Image */
/* 512KB for u-boot Environment Variables */
reg = <0x00f00000 0x00100000>;
label = "NOR (RO) U-Boot Image";
read-only;
};
};
nand@1,0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "fsl,p1020-fcm-nand",
"fsl,elbc-fcm-nand";
reg = <0x1 0x0 0x40000>;
partition@0 {
/* This location must not be altered */
/* 1MB for u-boot Bootloader Image */
reg = <0x0 0x00100000>;
label = "NAND (RO) U-Boot Image";
read-only;
};
partition@100000 {
/* 1MB for DTB Image */
reg = <0x00100000 0x00100000>;
label = "NAND (RO) DTB Image";
read-only;
};
partition@200000 {
/* 4MB for Linux Kernel Image */
reg = <0x00200000 0x00400000>;
label = "NAND (RO) Linux Kernel Image";
read-only;
};
partition@600000 {
/* 4MB for Compressed Root file System Image */
reg = <0x00600000 0x00400000>;
label = "NAND (RO) Compressed RFS Image";
read-only;
};
partition@a00000 {
/* 7MB for JFFS2 based Root file System */
reg = <0x00a00000 0x00700000>;
label = "NAND (RW) JFFS2 Root File System";
};
partition@1100000 {
/* 15MB for JFFS2 based Root file System */
reg = <0x01100000 0x00f00000>;
label = "NAND (RW) Writable User area";
};
};
L2switch@2,0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "vitesse-7385";
reg = <0x2 0x0 0x20000>;
};
};
soc@ffe00000 {
#address-cells = <1>;
#size-cells = <1>;
device_type = "soc";
compatible = "fsl,p1020-immr", "simple-bus";
ranges = <0x0 0x0 0xffe00000 0x100000>;
bus-frequency = <0>; // Filled out by uboot.
ecm-law@0 {
compatible = "fsl,ecm-law";
reg = <0x0 0x1000>;
fsl,num-laws = <12>;
};
ecm@1000 {
compatible = "fsl,p1020-ecm", "fsl,ecm";
reg = <0x1000 0x1000>;
interrupts = <16 2>;
interrupt-parent = <&mpic>;
};
memory-controller@2000 {
compatible = "fsl,p1020-memory-controller";
reg = <0x2000 0x1000>;
interrupt-parent = <&mpic>;
interrupts = <16 2>;
};
i2c@3000 {
#address-cells = <1>;
#size-cells = <0>;
cell-index = <0>;
compatible = "fsl-i2c";
reg = <0x3000 0x100>;
interrupts = <43 2>;
interrupt-parent = <&mpic>;
dfsrr;
rtc@68 {
compatible = "dallas,ds1339";
reg = <0x68>;
};
};
i2c@3100 {
#address-cells = <1>;
#size-cells = <0>;
cell-index = <1>;
compatible = "fsl-i2c";
reg = <0x3100 0x100>;
interrupts = <43 2>;
interrupt-parent = <&mpic>;
dfsrr;
};
serial0: serial@4500 {
cell-index = <0>;
device_type = "serial";
compatible = "ns16550";
reg = <0x4500 0x100>;
clock-frequency = <0>;
interrupts = <42 2>;
interrupt-parent = <&mpic>;
};
serial1: serial@4600 {
cell-index = <1>;
device_type = "serial";
compatible = "ns16550";
reg = <0x4600 0x100>;
clock-frequency = <0>;
interrupts = <42 2>;
interrupt-parent = <&mpic>;
};
spi@7000 {
cell-index = <0>;
#address-cells = <1>;
#size-cells = <0>;
compatible = "fsl,espi";
reg = <0x7000 0x1000>;
interrupts = <59 0x2>;
interrupt-parent = <&mpic>;
mode = "cpu";
fsl_m25p80@0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "fsl,espi-flash";
reg = <0>;
linux,modalias = "fsl_m25p80";
modal = "s25sl128b";
spi-max-frequency = <50000000>;
mode = <0>;
partition@0 {
/* 512KB for u-boot Bootloader Image */
reg = <0x0 0x00080000>;
label = "SPI (RO) U-Boot Image";
read-only;
};
partition@80000 {
/* 512KB for DTB Image */
reg = <0x00080000 0x00080000>;
label = "SPI (RO) DTB Image";
read-only;
};
partition@100000 {
/* 4MB for Linux Kernel Image */
reg = <0x00100000 0x00400000>;
label = "SPI (RO) Linux Kernel Image";
read-only;
};
partition@500000 {
/* 4MB for Compressed RFS Image */
reg = <0x00500000 0x00400000>;
label = "SPI (RO) Compressed RFS Image";
read-only;
};
partition@900000 {
/* 7MB for JFFS2 based RFS */
reg = <0x00900000 0x00700000>;
label = "SPI (RW) JFFS2 RFS";
};
};
};
gpio: gpio-controller@f000 {
#gpio-cells = <2>;
compatible = "fsl,mpc8572-gpio";
reg = <0xf000 0x100>;
interrupts = <47 0x2>;
interrupt-parent = <&mpic>;
gpio-controller;
};
L2: l2-cache-controller@20000 {
compatible = "fsl,p1020-l2-cache-controller";
reg = <0x20000 0x1000>;
cache-line-size = <32>; // 32 bytes
cache-size = <0x40000>; // L2,256K
interrupt-parent = <&mpic>;
interrupts = <16 2>;
};
dma@21300 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "fsl,eloplus-dma";
reg = <0x21300 0x4>;
ranges = <0x0 0x21100 0x200>;
cell-index = <0>;
dma-channel@0 {
compatible = "fsl,eloplus-dma-channel";
reg = <0x0 0x80>;
cell-index = <0>;
interrupt-parent = <&mpic>;
interrupts = <20 2>;
};
dma-channel@80 {
compatible = "fsl,eloplus-dma-channel";
reg = <0x80 0x80>;
cell-index = <1>;
interrupt-parent = <&mpic>;
interrupts = <21 2>;
};
dma-channel@100 {
compatible = "fsl,eloplus-dma-channel";
reg = <0x100 0x80>;
cell-index = <2>;
interrupt-parent = <&mpic>;
interrupts = <22 2>;
};
dma-channel@180 {
compatible = "fsl,eloplus-dma-channel";
reg = <0x180 0x80>;
cell-index = <3>;
interrupt-parent = <&mpic>;
interrupts = <23 2>;
};
};
mdio@24000 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "fsl,etsec2-mdio";
reg = <0x24000 0x1000 0xb0030 0x4>;
phy0: ethernet-phy@0 {
interrupt-parent = <&mpic>;
interrupts = <3 1>;
reg = <0x0>;
};
phy1: ethernet-phy@1 {
interrupt-parent = <&mpic>;
interrupts = <2 1>;
reg = <0x1>;
};
};
mdio@25000 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "fsl,etsec2-tbi";
reg = <0x25000 0x1000 0xb1030 0x4>;
tbi0: tbi-phy@11 {
reg = <0x11>;
device_type = "tbi-phy";
};
};
enet0: ethernet@b0000 {
#address-cells = <1>;
#size-cells = <1>;
device_type = "network";
model = "eTSEC";
compatible = "fsl,etsec2";
fsl,num_rx_queues = <0x8>;
fsl,num_tx_queues = <0x8>;
local-mac-address = [ 00 00 00 00 00 00 ];
interrupt-parent = <&mpic>;
fixed-link = <1 1 1000 0 0>;
phy-connection-type = "rgmii-id";
queue-group@0 {
#address-cells = <1>;
#size-cells = <1>;
reg = <0xb0000 0x1000>;
interrupts = <29 2 30 2 34 2>;
};
queue-group@1 {
#address-cells = <1>;
#size-cells = <1>;
reg = <0xb4000 0x1000>;
interrupts = <17 2 18 2 24 2>;
};
};
enet1: ethernet@b1000 {
#address-cells = <1>;
#size-cells = <1>;
device_type = "network";
model = "eTSEC";
compatible = "fsl,etsec2";
fsl,num_rx_queues = <0x8>;
fsl,num_tx_queues = <0x8>;
local-mac-address = [ 00 00 00 00 00 00 ];
interrupt-parent = <&mpic>;
phy-handle = <&phy0>;
tbi-handle = <&tbi0>;
phy-connection-type = "sgmii";
queue-group@0 {
#address-cells = <1>;
#size-cells = <1>;
reg = <0xb1000 0x1000>;
interrupts = <35 2 36 2 40 2>;
};
queue-group@1 {
#address-cells = <1>;
#size-cells = <1>;
reg = <0xb5000 0x1000>;
interrupts = <51 2 52 2 67 2>;
};
};
enet2: ethernet@b2000 {
#address-cells = <1>;
#size-cells = <1>;
device_type = "network";
model = "eTSEC";
compatible = "fsl,etsec2";
fsl,num_rx_queues = <0x8>;
fsl,num_tx_queues = <0x8>;
local-mac-address = [ 00 00 00 00 00 00 ];
interrupt-parent = <&mpic>;
phy-handle = <&phy1>;
phy-connection-type = "rgmii-id";
queue-group@0 {
#address-cells = <1>;
#size-cells = <1>;
reg = <0xb2000 0x1000>;
interrupts = <31 2 32 2 33 2>;
};
queue-group@1 {
#address-cells = <1>;
#size-cells = <1>;
reg = <0xb6000 0x1000>;
interrupts = <25 2 26 2 27 2>;
};
};
usb@22000 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "fsl-usb2-dr";
reg = <0x22000 0x1000>;
interrupt-parent = <&mpic>;
interrupts = <28 0x2>;
phy_type = "ulpi";
};
/* USB2 is shared with localbus, so it must be disabled
by default. We can't put 'status = "disabled";' here
since U-Boot doesn't clear the status property when
it enables USB2. OTOH, U-Boot does create a new node
when there isn't any. So, just comment it out.
usb@23000 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "fsl-usb2-dr";
reg = <0x23000 0x1000>;
interrupt-parent = <&mpic>;
interrupts = <46 0x2>;
phy_type = "ulpi";
};
*/
sdhci@2e000 {
compatible = "fsl,p1020-esdhc", "fsl,esdhc";
reg = <0x2e000 0x1000>;
interrupts = <72 0x2>;
interrupt-parent = <&mpic>;
/* Filled in by U-Boot */
clock-frequency = <0>;
};
crypto@30000 {
compatible = "fsl,sec3.1", "fsl,sec3.0", "fsl,sec2.4",
"fsl,sec2.2", "fsl,sec2.1", "fsl,sec2.0";
reg = <0x30000 0x10000>;
interrupts = <45 2 58 2>;
interrupt-parent = <&mpic>;
fsl,num-channels = <4>;
fsl,channel-fifo-len = <24>;
fsl,exec-units-mask = <0xbfe>;
fsl,descriptor-types-mask = <0x3ab0ebf>;
};
mpic: pic@40000 {
interrupt-controller;
#address-cells = <0>;
#interrupt-cells = <2>;
reg = <0x40000 0x40000>;
compatible = "chrp,open-pic";
device_type = "open-pic";
};
msi@41600 {
compatible = "fsl,p1020-msi", "fsl,mpic-msi";
reg = <0x41600 0x80>;
msi-available-ranges = <0 0x100>;
interrupts = <
0xe0 0
0xe1 0
0xe2 0
0xe3 0
0xe4 0
0xe5 0
0xe6 0
0xe7 0>;
interrupt-parent = <&mpic>;
};
global-utilities@e0000 { //global utilities block
compatible = "fsl,p1020-guts";
reg = <0xe0000 0x1000>;
fsl,has-rstcr;
};
};
pci0: pcie@ffe09000 {
compatible = "fsl,mpc8548-pcie";
device_type = "pci";
#interrupt-cells = <1>;
#size-cells = <2>;
#address-cells = <3>;
reg = <0 0xffe09000 0 0x1000>;
bus-range = <0 255>;
ranges = <0x2000000 0x0 0xa0000000 0 0xa0000000 0x0 0x20000000
0x1000000 0x0 0x00000000 0 0xffc30000 0x0 0x10000>;
clock-frequency = <33333333>;
interrupt-parent = <&mpic>;
interrupts = <16 2>;
pcie@0 {
reg = <0x0 0x0 0x0 0x0 0x0>;
#size-cells = <2>;
#address-cells = <3>;
device_type = "pci";
ranges = <0x2000000 0x0 0xa0000000
0x2000000 0x0 0xa0000000
0x0 0x20000000
0x1000000 0x0 0x0
0x1000000 0x0 0x0
0x0 0x100000>;
};
};
pci1: pcie@ffe0a000 {
compatible = "fsl,mpc8548-pcie";
device_type = "pci";
#interrupt-cells = <1>;
#size-cells = <2>;
#address-cells = <3>;
reg = <0 0xffe0a000 0 0x1000>;
bus-range = <0 255>;
ranges = <0x2000000 0x0 0xc0000000 0 0xc0000000 0x0 0x20000000
0x1000000 0x0 0x00000000 0 0xffc20000 0x0 0x10000>;
clock-frequency = <33333333>;
interrupt-parent = <&mpic>;
interrupts = <16 2>;
pcie@0 {
reg = <0x0 0x0 0x0 0x0 0x0>;
#size-cells = <2>;
#address-cells = <3>;
device_type = "pci";
ranges = <0x2000000 0x0 0xc0000000
0x2000000 0x0 0xc0000000
0x0 0x20000000
0x1000000 0x0 0x0
0x1000000 0x0 0x0
0x0 0x100000>;
};
};
};
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [Doubt] PPC Linux Device Tree Update
2012-06-11 7:52 [Doubt] PPC Linux Device Tree Update Kay One
@ 2012-06-11 20:14 ` Scott Wood
0 siblings, 0 replies; 2+ messages in thread
From: Scott Wood @ 2012-06-11 20:14 UTC (permalink / raw)
To: Kay One; +Cc: linuxppc-dev
On 06/11/2012 02:52 AM, Kay One wrote:
> Hi All,
>
> Currently I am working on p1020rdb soc for some kernel bringing up activity.
> I have come across one requirement to update the memory map (MMAP) of
> kernel from evaluation board to
> some other board who is having the same soc.
>
> for my eval board I have used the p1020rdb.dts file from 2.6.38 standard
> kernel source.
Why not start with the latest version?
> (PFA) which is working almost fine.
> But, I am really not able to find the following mapping as a part of the
> attached dts file what I am using.
> Can anyone please point me out that dts file is the only one to search
> out following base addresses selected in memory map or is there
> some specific file of kernel inside which I will be able to search
> through to find the following base addresses?
>
> FFFF_F000 4 KB .bootpg
This is not expressed in the device tree, though it is marked reserved
by U-Boot in the reserve map (part of the dtb, but not part of the
actual tree).
> FFE0_0000 1 MB CCSR
That's the "soc" node.
> EC00_0000 64 MB Flash + alias
/localbus@ffe05000/nor@0,0/
...but it's at 0xef00_0000 according to the tree you attached.
Read the ePAPR spec for a description of how the ranges property works.
> 8000_0000 1 GB PCI[1:2] mem
> FFC0_0000 256 KB PCI[1:2] I/O
These are encoded in the ranges property of the relevant PCIe node (see
version 1.0 of the ePAPR spec for how), but I don't see one with those
specific addresses. I don't know what the [1:2] is supposed to mean.
> FFB0_0000 1 MB VTSS
/localbus@ffe05000/L2switch@2,0/
> FFA0_0000 1 MB CPLD
Not represented in the device tree. The device tree shows NAND at this
address.
> FF80_0000 1 MB NAND
/localbus@ffe05000/nand@1,0/
...but with a different address, as noted above.
> 0000_0000 1 GB DDR
/memory
U-Boot fills in the reg property.
-Scott
^ permalink raw reply [flat|nested] 2+ messages in thread
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2012-06-11 20:14 ` Scott Wood
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