提交 bc3a59c1 编写于 作者: D Dong Aisheng 提交者: Shawn Guo

ARM: mxs: add initial device tree support for imx28-evk board

This patch includes basic dt support which can boot via nfs rootfs.
Signed-off-by: NDong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Acked-by: NMarek Vasut <marex@denx.de>
上级 844d0b5a
Freescale i.MX Platforms Device Tree Bindings
-----------------------------------------------
i.MX28 Evaluation Kit
Required root node properties:
- compatible = "fsl,imx28-evk", "fsl,imx28";
i.MX51 Babbage Board
Required root node properties:
- compatible = "fsl,imx51-babbage", "fsl,imx51";
......
/*
* Copyright 2012 Freescale Semiconductor, Inc.
*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*/
/dts-v1/;
/include/ "imx28.dtsi"
/ {
model = "Freescale i.MX28 Evaluation Kit";
compatible = "fsl,imx28-evk", "fsl,imx28";
memory {
reg = <0x40000000 0x08000000>;
};
apb@80000000 {
apbx@80040000 {
duart: serial@80074000 {
pinctrl-names = "default";
pinctrl-0 = <&duart_pins_a>;
status = "okay";
};
};
};
ahb@80080000 {
mac0: ethernet@800f0000 {
phy-mode = "rmii";
pinctrl-names = "default";
pinctrl-0 = <&mac0_pins_a>;
status = "okay";
};
mac1: ethernet@800f4000 {
phy-mode = "rmii";
pinctrl-names = "default";
pinctrl-0 = <&mac1_pins_a>;
status = "okay";
};
};
};
/*
* Copyright 2012 Freescale Semiconductor, Inc.
*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*/
/include/ "skeleton.dtsi"
/ {
interrupt-parent = <&icoll>;
cpus {
cpu@0 {
compatible = "arm,arm926ejs";
};
};
apb@80000000 {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
reg = <0x80000000 0x80000>;
ranges;
apbh@80000000 {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
reg = <0x80000000 0x3c900>;
ranges;
icoll: interrupt-controller@80000000 {
compatible = "fsl,imx28-icoll", "fsl,mxs-icoll";
interrupt-controller;
#interrupt-cells = <1>;
reg = <0x80000000 0x2000>;
};
hsadc@80002000 {
reg = <0x80002000 2000>;
interrupts = <13 87>;
status = "disabled";
};
dma-apbh@80004000 {
reg = <0x80004000 2000>;
status = "disabled";
};
perfmon@80006000 {
reg = <0x80006000 800>;
interrupts = <27>;
status = "disabled";
};
bch@8000a000 {
reg = <0x8000a000 2000>;
interrupts = <41>;
status = "disabled";
};
gpmi@8000c000 {
reg = <0x8000c000 2000>;
interrupts = <42 88>;
status = "disabled";
};
ssp0: ssp@80010000 {
reg = <0x80010000 2000>;
interrupts = <96 82>;
status = "disabled";
};
ssp1: ssp@80012000 {
reg = <0x80012000 2000>;
interrupts = <97 83>;
status = "disabled";
};
ssp2: ssp@80014000 {
reg = <0x80014000 2000>;
interrupts = <98 84>;
status = "disabled";
};
ssp3: ssp@80016000 {
reg = <0x80016000 2000>;
interrupts = <99 85>;
status = "disabled";
};
pinctrl@80018000 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "fsl,imx28-pinctrl";
reg = <0x80018000 2000>;
duart_pins_a: duart@0 {
reg = <0>;
fsl,pinmux-ids = <0x3102 0x3112>;
fsl,drive-strength = <0>;
fsl,voltage = <1>;
fsl,pull-up = <0>;
};
mac0_pins_a: mac0@0 {
reg = <0>;
fsl,pinmux-ids = <0x4000 0x4010 0x4020
0x4030 0x4040 0x4060 0x4070
0x4080 0x4100>;
fsl,drive-strength = <1>;
fsl,voltage = <1>;
fsl,pull-up = <1>;
};
mac1_pins_a: mac1@0 {
reg = <0>;
fsl,pinmux-ids = <0x40f1 0x4091 0x40a1
0x40e1 0x40b1 0x40c1>;
fsl,drive-strength = <1>;
fsl,voltage = <1>;
fsl,pull-up = <1>;
};
};
digctl@8001c000 {
reg = <0x8001c000 2000>;
interrupts = <89>;
status = "disabled";
};
etm@80022000 {
reg = <0x80022000 2000>;
status = "disabled";
};
dma-apbx@80024000 {
reg = <0x80024000 2000>;
status = "disabled";
};
dcp@80028000 {
reg = <0x80028000 2000>;
interrupts = <52 53 54>;
status = "disabled";
};
pxp@8002a000 {
reg = <0x8002a000 2000>;
interrupts = <39>;
status = "disabled";
};
ocotp@8002c000 {
reg = <0x8002c000 2000>;
status = "disabled";
};
axi-ahb@8002e000 {
reg = <0x8002e000 2000>;
status = "disabled";
};
lcdif@80030000 {
reg = <0x80030000 2000>;
interrupts = <38 86>;
status = "disabled";
};
can0: can@80032000 {
reg = <0x80032000 2000>;
interrupts = <8>;
status = "disabled";
};
can1: can@80034000 {
reg = <0x80034000 2000>;
interrupts = <9>;
status = "disabled";
};
simdbg@8003c000 {
reg = <0x8003c000 200>;
status = "disabled";
};
simgpmisel@8003c200 {
reg = <0x8003c200 100>;
status = "disabled";
};
simsspsel@8003c300 {
reg = <0x8003c300 100>;
status = "disabled";
};
simmemsel@8003c400 {
reg = <0x8003c400 100>;
status = "disabled";
};
gpiomon@8003c500 {
reg = <0x8003c500 100>;
status = "disabled";
};
simenet@8003c700 {
reg = <0x8003c700 100>;
status = "disabled";
};
armjtag@8003c800 {
reg = <0x8003c800 100>;
status = "disabled";
};
};
apbx@80040000 {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
reg = <0x80040000 0x40000>;
ranges;
clkctl@80040000 {
reg = <0x80040000 2000>;
status = "disabled";
};
saif0: saif@80042000 {
reg = <0x80042000 2000>;
interrupts = <59 80>;
status = "disabled";
};
power@80044000 {
reg = <0x80044000 2000>;
status = "disabled";
};
saif1: saif@80046000 {
reg = <0x80046000 2000>;
interrupts = <58 81>;
status = "disabled";
};
lradc@80050000 {
reg = <0x80050000 2000>;
status = "disabled";
};
spdif@80054000 {
reg = <0x80054000 2000>;
interrupts = <45 66>;
status = "disabled";
};
rtc@80056000 {
reg = <0x80056000 2000>;
interrupts = <28 29>;
status = "disabled";
};
i2c0: i2c@80058000 {
reg = <0x80058000 2000>;
interrupts = <111 68>;
status = "disabled";
};
i2c1: i2c@8005a000 {
reg = <0x8005a000 2000>;
interrupts = <110 69>;
status = "disabled";
};
pwm@80064000 {
reg = <0x80064000 2000>;
status = "disabled";
};
timrot@80068000 {
reg = <0x80068000 2000>;
status = "disabled";
};
auart0: serial@8006a000 {
reg = <0x8006a000 0x2000>;
interrupts = <112 70 71>;
status = "disabled";
};
auart1: serial@8006c000 {
reg = <0x8006c000 0x2000>;
interrupts = <113 72 73>;
status = "disabled";
};
auart2: serial@8006e000 {
reg = <0x8006e000 0x2000>;
interrupts = <114 74 75>;
status = "disabled";
};
auart3: serial@80070000 {
reg = <0x80070000 0x2000>;
interrupts = <115 76 77>;
status = "disabled";
};
auart4: serial@80072000 {
reg = <0x80072000 0x2000>;
interrupts = <116 78 79>;
status = "disabled";
};
duart: serial@80074000 {
compatible = "arm,pl011", "arm,primecell";
reg = <0x80074000 0x1000>;
interrupts = <47>;
status = "disabled";
};
usbphy0: usbphy@8007c000 {
reg = <0x8007c000 0x2000>;
status = "disabled";
};
usbphy1: usbphy@8007e000 {
reg = <0x8007e000 0x2000>;
status = "disabled";
};
};
};
ahb@80080000 {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
reg = <0x80080000 0x80000>;
ranges;
usbctrl0: usbctrl@80080000 {
reg = <0x80080000 0x10000>;
status = "disabled";
};
usbctrl1: usbctrl@80090000 {
reg = <0x80090000 0x10000>;
status = "disabled";
};
dflpt@800c0000 {
reg = <0x800c0000 0x10000>;
status = "disabled";
};
mac0: ethernet@800f0000 {
compatible = "fsl,imx28-fec";
reg = <0x800f0000 0x4000>;
interrupts = <101>;
status = "disabled";
};
mac1: ethernet@800f4000 {
compatible = "fsl,imx28-fec";
reg = <0x800f4000 0x4000>;
interrupts = <102>;
status = "disabled";
};
switch@800f8000 {
reg = <0x800f8000 0x8000>;
status = "disabled";
};
};
};
......@@ -7,18 +7,28 @@ config MXS_OCOTP
config SOC_IMX23
bool
select ARM_AMBA
select CPU_ARM926T
select HAVE_PWM
select PINCTRL_IMX23
config SOC_IMX28
bool
select ARM_AMBA
select CPU_ARM926T
select HAVE_PWM
select PINCTRL_IMX28
comment "MXS platforms:"
config MACH_MXS_DT
bool "Support MXS platforms from device tree"
select SOC_IMX28
select USE_OF
help
Include support for Freescale MXS platforms(i.MX23 and i.MX28)
using the device tree for discovery
config MACH_STMP378X_DEVB
bool "Support STMP378x_devb Platform"
select SOC_IMX23
......
......@@ -4,6 +4,7 @@ obj-y := devices.o icoll.o iomux.o system.o timer.o mm.o
obj-$(CONFIG_MXS_OCOTP) += ocotp.o
obj-$(CONFIG_PM) += pm.o
obj-$(CONFIG_MACH_MXS_DT) += mach-mxs.o
obj-$(CONFIG_MACH_STMP378X_DEVB) += mach-stmp378x_devb.o
obj-$(CONFIG_MACH_MX23EVK) += mach-mx23evk.o
obj-$(CONFIG_MACH_MX28EVK) += mach-mx28evk.o
......
config MXS_HAVE_AMBA_DUART
bool
select ARM_AMBA
config MXS_HAVE_PLATFORM_AUART
bool
......
/*
* Copyright 2012 Freescale Semiconductor, Inc.
* Copyright 2012 Linaro Ltd.
*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*/
#include <linux/clk.h>
#include <linux/clkdev.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/init.h>
#include <linux/irqdomain.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <mach/common.h>
static int __init mxs_icoll_add_irq_domain(struct device_node *np,
struct device_node *interrupt_parent)
{
irq_domain_add_legacy(np, 128, 0, 0, &irq_domain_simple_ops, NULL);
return 0;
}
static const struct of_device_id mxs_irq_match[] __initconst = {
{ .compatible = "fsl,mxs-icoll", .data = mxs_icoll_add_irq_domain, },
{ /* sentinel */ }
};
static void __init mxs_dt_init_irq(void)
{
icoll_init_irq();
of_irq_init(mxs_irq_match);
}
static void __init imx28_timer_init(void)
{
mx28_clocks_init();
}
static struct sys_timer imx28_timer = {
.init = imx28_timer_init,
};
static void __init imx28_evk_init(void)
{
struct clk *clk;
/* Enable fec phy clock */
clk = clk_get_sys("enet_out", NULL);
if (!IS_ERR(clk))
clk_prepare_enable(clk);
}
static void __init mxs_machine_init(void)
{
if (of_machine_is_compatible("fsl,imx28-evk"))
imx28_evk_init();
of_platform_populate(NULL, of_default_bus_match_table,
NULL, NULL);
}
static const char *imx28_dt_compat[] __initdata = {
"fsl,imx28-evk",
"fsl,imx28",
NULL,
};
DT_MACHINE_START(IMX28, "Freescale i.MX28 (Device Tree)")
.map_io = mx28_map_io,
.init_irq = mxs_dt_init_irq,
.timer = &imx28_timer,
.init_machine = mxs_machine_init,
.dt_compat = imx28_dt_compat,
.restart = mxs_restart,
MACHINE_END
......@@ -142,6 +142,7 @@ static struct clk_lookup hbus_lookups[] __initdata = {
static struct clk_lookup xbus_lookups[] __initdata = {
{ .dev_id = "duart", .con_id = "apb_pclk"},
{ .dev_id = "80074000.serial", .con_id = "apb_pclk"},
{ .dev_id = "mxs-dma-apbx", },
{ .dev_id = "80024000.dma-apbx", },
};
......
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