leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ARM: realview: add device tree and bindings for PB1176

Browse Source 
As a first example, add device tree and bindings for the
RealView PB1176.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2014-10-01 09:30:45 +02:00
parent fa6e2eec15
commit f123a66cbd
4 changed files with 314 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

65
Documentation/devicetree/bindings/arm/arm-boards
View File

@ -92,3 +92,68 @@ Required nodes:
- core-module: the root node to the Versatile platforms must have
a core-module with regs and the compatible strings
"arm,core-module-versatile", "syscon"
ARM RealView Boards
-------------------
The RealView boards cover tailored evaluation boards that are used to explore
the ARM11 and Cortex A-8 and Cortex A-9 processors.
Required properties (in root node):
/* RealView Emulation Baseboard */
compatible = "arm,realview-eb";
/* RealView Platform Baseboard for ARM1176JZF-S */
compatible = "arm,realview-pb1176";
/* RealView Platform Baseboard for ARM11 MPCore */
compatible = "arm,realview-pb11mp";
/* RealView Platform Baseboard for Cortex A-8 */
compatible = "arm,realview-pba8";
/* RealView Platform Baseboard Explore for Cortex A-9 */
compatible = "arm,realview-pbx";
Required nodes:
- soc: some node of the RealView platforms must be the SoC
node that contain the SoC-specific devices, withe the compatible
string set to one of these tuples:
"arm,realview-eb-soc", "simple-bus"
"arm,realview-pb1176-soc", "simple-bus"
"arm,realview-pb11mp-soc", "simple-bus"
"arm,realview-pba8-soc", "simple-bus"
"arm,realview-pbx-soc", "simple-bus"
- syscon: some subnode of the RealView SoC node must be a
system controller node pointing to the control registers,
with the compatible string set to one of these tuples:
"arm,realview-eb-syscon", "syscon"
"arm,realview-pb1176-syscon", "syscon"
"arm,realview-pb11mp-syscon", "syscon"
"arm,realview-pba8-syscon", "syscon"
"arm,realview-pbx-syscon", "syscon"
Required properties for the system controller:
- regs: the location and size of the system controller registers,
one range of 0x1000 bytes.
Example:
/dts-v1/;
#include <dt-bindings/interrupt-controller/irq.h>
#include "skeleton.dtsi"
/ {
model = "ARM RealView PB1176 with device tree";
compatible = "arm,realview-pb1176";
soc {
#address-cells = <1>;
#size-cells = <1>;
compatible = "arm,realview-pb1176-soc", "simple-bus";
ranges;
syscon: syscon@10000000 {
compatible = "arm,realview-syscon", "syscon";
reg = <0x10000000 0x1000>;
};
};
};

1
Documentation/devicetree/bindings/arm/gic.txt
View File

@ -17,6 +17,7 @@ Main node required properties:
"arm,cortex-a7-gic"
"arm,arm11mp-gic"
"brcm,brahma-b15-gic"
"arm,arm1176jzf-devchip-gic"
- interrupt-controller : Identifies the node as an interrupt controller
- #interrupt-cells : Specifies the number of cells needed to encode an
interrupt source. The type shall be a <u32> and the value shall be 3.

1
arch/arm/boot/dts/Makefile
View File

@ -363,6 +363,7 @@ dtb-$(CONFIG_ARCH_QCOM) += \
qcom-msm8660-surf.dtb \
qcom-msm8960-cdp.dtb \
qcom-msm8974-sony-xperia-honami.dtb
dtb-$(CONFIG_ARCH_REALVIEW) += arm-realview-pb1176.dtb
dtb-$(CONFIG_ARCH_ROCKCHIP) += \
rk3066a-bqcurie2.dtb \
rk3188-radxarock.dtb \

247
arch/arm/boot/dts/arm-realview-pb1176.dts Normal file
View File

@ -0,0 +1,247 @@
/*
* Copyright 2014 Linaro Ltd
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
/dts-v1/;
#include <dt-bindings/interrupt-controller/irq.h>
#include "skeleton.dtsi"
/ {
model = "ARM RealView PB1176";
compatible = "arm,realview-pb1176";
chosen { };
aliases {
serial0 = &pb1176_serial0;
serial1 = &pb1176_serial1;
serial2 = &pb1176_serial2;
serial3 = &pb1176_serial3;
};
memory {
/* 128 MiB memory @ 0x0 */
reg = <0x00000000 0x08000000>;
};
xtal24mhz: xtal24mhz@24M {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <24000000>;
};
timclk: timclk@1M {
#clock-cells = <0>;
compatible = "fixed-factor-clock";
clock-div = <24>;
clock-mult = <1>;
clocks = <&xtal24mhz>;
};
uartclk: uartclk@24M {
#clock-cells = <0>;
compatible = "fixed-factor-clock";
clock-div = <1>;
clock-mult = <1>;
clocks = <&xtal24mhz>;
};
/* FIXME: this actually hangs off the PLL clocks */
pclk: pclk@0 {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <0>;
};
soc {
#address-cells = <1>;
#size-cells = <1>;
compatible = "arm,realview-pb1176-soc", "simple-bus";
regmap = <&syscon>;
ranges;
syscon: syscon@10000000 {
compatible = "arm,realview-pb1176-syscon", "syscon";
reg = <0x10000000 0x1000>;
led@08.0 {
compatible = "register-bit-led";
offset = <0x08>;
mask = <0x01>;
label = "versatile:0";
linux,default-trigger = "heartbeat";
default-state = "on";
};
led@08.1 {
compatible = "register-bit-led";
offset = <0x08>;
mask = <0x02>;
label = "versatile:1";
linux,default-trigger = "mmc0";
default-state = "off";
};
led@08.2 {
compatible = "register-bit-led";
offset = <0x08>;
mask = <0x04>;
label = "versatile:2";
linux,default-trigger = "cpu0";
default-state = "off";
};
led@08.3 {
compatible = "register-bit-led";
offset = <0x08>;
mask = <0x08>;
label = "versatile:3";
default-state = "off";
};
led@08.4 {
compatible = "register-bit-led";
offset = <0x08>;
mask = <0x10>;
label = "versatile:4";
default-state = "off";
};
led@08.5 {
compatible = "register-bit-led";
offset = <0x08>;
mask = <0x20>;
label = "versatile:5";
default-state = "off";
};
led@08.6 {
compatible = "register-bit-led";
offset = <0x08>;
mask = <0x40>;
label = "versatile:6";
default-state = "off";
};
led@08.7 {
compatible = "register-bit-led";
offset = <0x08>;
mask = <0x80>;
label = "versatile:7";
default-state = "off";
};
};
/* Primary DevChip GIC synthesized with the CPU */
intc_dc1176: interrupt-controller@10120000 {
compatible = "arm,arm1176jzf-devchip-gic", "arm,arm11mp-gic";
#interrupt-cells = <3>;
#address-cells = <1>;
interrupt-controller;
reg = <0x10121000 0x1000>,
<0x10120000 0x100>;
};
/* This GIC on the board is cascaded off the DevChip GIC */
intc_pb1176: interrupt-controller@10040000 {
compatible = "arm,arm1176jzf-devchip-gic", "arm,arm11mp-gic";
#interrupt-cells = <3>;
#address-cells = <1>;
interrupt-controller;
reg = <0x10041000 0x1000>,
<0x10040000 0x100>;
interrupt-parent = <&intc_dc1176>;
interrupts = <0 31 IRQ_TYPE_LEVEL_HIGH>;
};
L2: l2-cache {
compatible = "arm,l220-cache";
reg = <0x10110000 0x1000>;
interrupt-parent = <&intc_dc1176>;
interrupts = <0 13 IRQ_TYPE_LEVEL_HIGH>;
cache-unified;
cache-level = <2>;
/*
* Override default cache size, sets and
* associativity as these may be erroneously set
* up by boot loader(s).
*/
arm,override-auxreg;
cache-size = <131072>; // 128kB
cache-sets = <512>;
cache-line-size = <32>;
};
pmu {
compatible = "arm,arm1176-pmu";
interrupt-parent = <&intc_dc1176>;
interrupts = <0 7 IRQ_TYPE_LEVEL_HIGH>;
};
timer01: timer@10104000 {
compatible = "arm,sp804", "arm,primecell";
reg = <0x10104000 0x1000>;
interrupt-parent = <&intc_dc1176>;
interrupts = <0 8 IRQ_TYPE_LEVEL_HIGH>, <0 9 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&timclk>, <&timclk>, <&pclk>;
clock-names = "timer1", "timer2", "apb_pclk";
};
timer23: timer@10105000 {
compatible = "arm,sp804", "arm,primecell";
reg = <0x10105000 0x1000>;
interrupt-parent = <&intc_dc1176>;
interrupts = <0 10 IRQ_TYPE_LEVEL_HIGH>;
arm,sp804-has-irq = <1>;
clocks = <&timclk>, <&timclk>, <&pclk>;
clock-names = "timer1", "timer2", "apb_pclk";
};
pb1176_serial0: serial@1010c000 {
compatible = "arm,pl011", "arm,primecell";
reg = <0x1010c000 0x1000>;
interrupt-parent = <&intc_dc1176>;
interrupts = <0 18 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&uartclk>, <&pclk>;
clock-names = "uartclk", "apb_pclk";
};
pb1176_serial1: serial@1010d000 {
compatible = "arm,pl011", "arm,primecell";
reg = <0x1010d000 0x1000>;
interrupt-parent = <&intc_dc1176>;
interrupts = <0 19 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&uartclk>, <&pclk>;
clock-names = "uartclk", "apb_pclk";
};
pb1176_serial2: serial@1010e000 {
compatible = "arm,pl011", "arm,primecell";
reg = <0x1010e000 0x1000>;
interrupt-parent = <&intc_dc1176>;
interrupts = <0 20 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&uartclk>, <&pclk>;
clock-names = "uartclk", "apb_pclk";
};
pb1176_serial3: serial@1010f000 {
compatible = "arm,pl011", "arm,primecell";
reg = <0x1010f000 0x1000>;
interrupt-parent = <&intc_dc1176>;
interrupts = <0 21 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&uartclk>, <&pclk>;
clock-names = "uartclk", "apb_pclk";
};
};
};