[PATCH 2/3] ARM: mxs: add initial device tree support for imx23-evk board
Marek Vasut
marex at denx.de
Mon May 7 12:11:01 EDT 2012
Dear Shawn Guo,
> It adds initial device tree support for imx23-evk board, and only
> serial console is enabled.
>
> Signed-off-by: Shawn Guo <shawn.guo at linaro.org>
Acked-by: Marek Vasut <marex at denx.de>
> ---
> Documentation/devicetree/bindings/arm/fsl.txt | 4 +
> arch/arm/boot/dts/imx23-evk.dts | 32 ++++
> arch/arm/boot/dts/imx23.dtsi | 243
> +++++++++++++++++++++++++ arch/arm/mach-mxs/Kconfig |
> 1 +
> arch/arm/mach-mxs/mach-mxs.c | 24 +++
> drivers/clk/mxs/clk-imx23.c | 1 +
> 6 files changed, 305 insertions(+), 0 deletions(-)
> create mode 100644 arch/arm/boot/dts/imx23-evk.dts
> create mode 100644 arch/arm/boot/dts/imx23.dtsi
>
> diff --git a/Documentation/devicetree/bindings/arm/fsl.txt
> b/Documentation/devicetree/bindings/arm/fsl.txt index fecb580..1708df5
> 100644
> --- a/Documentation/devicetree/bindings/arm/fsl.txt
> +++ b/Documentation/devicetree/bindings/arm/fsl.txt
> @@ -1,6 +1,10 @@
> Freescale i.MX Platforms Device Tree Bindings
> -----------------------------------------------
>
> +i.MX23 Evaluation Kit
> +Required root node properties:
> + - compatible = "fsl,imx23-evk", "fsl,imx23";
> +
> i.MX28 Evaluation Kit
> Required root node properties:
> - compatible = "fsl,imx28-evk", "fsl,imx28";
> diff --git a/arch/arm/boot/dts/imx23-evk.dts
> b/arch/arm/boot/dts/imx23-evk.dts new file mode 100644
> index 0000000..8cad51e
> --- /dev/null
> +++ b/arch/arm/boot/dts/imx23-evk.dts
> @@ -0,0 +1,32 @@
> +/*
> + * 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/ "imx23.dtsi"
> +
> +/ {
> + model = "Freescale i.MX23 Evaluation Kit";
> + compatible = "fsl,imx23-evk", "fsl,imx23";
> +
> + memory {
> + reg = <0x40000000 0x08000000>;
> + };
> +
> + apb at 80000000 {
> + apbx at 80040000 {
> + duart: serial at 80070000 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&duart_pins_a>;
> + status = "okay";
> + };
> + };
> + };
> +};
> diff --git a/arch/arm/boot/dts/imx23.dtsi b/arch/arm/boot/dts/imx23.dtsi
> new file mode 100644
> index 0000000..fb09ccd
> --- /dev/null
> +++ b/arch/arm/boot/dts/imx23.dtsi
> @@ -0,0 +1,243 @@
> +/*
> + * 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 at 0 {
> + compatible = "arm,arm926ejs";
> + };
> + };
> +
> + apb at 80000000 {
> + compatible = "simple-bus";
> + #address-cells = <1>;
> + #size-cells = <1>;
> + reg = <0x80000000 0x80000>;
> + ranges;
> +
> + apbh at 80000000 {
> + compatible = "simple-bus";
> + #address-cells = <1>;
> + #size-cells = <1>;
> + reg = <0x80000000 0x40000>;
> + ranges;
> +
> + icoll: interrupt-controller at 80000000 {
> + compatible = "fsl,imx23-icoll", "fsl,mxs-icoll";
> + interrupt-controller;
> + #interrupt-cells = <1>;
> + reg = <0x80000000 0x2000>;
> + };
> +
> + dma-apbh at 80004000 {
> + reg = <0x80004000 2000>;
> + status = "disabled";
> + };
> +
> + ecc at 80008000 {
> + reg = <0x80008000 2000>;
> + status = "disabled";
> + };
> +
> + bch at 8000a000 {
> + reg = <0x8000a000 2000>;
> + status = "disabled";
> + };
> +
> + gpmi at 8000c000 {
> + reg = <0x8000c000 2000>;
> + status = "disabled";
> + };
> +
> + ssp0: ssp at 80010000 {
> + reg = <0x80010000 2000>;
> + status = "disabled";
> + };
> +
> + etm at 80014000 {
> + reg = <0x80014000 2000>;
> + status = "disabled";
> + };
> +
> + pinctrl at 80018000 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + compatible = "fsl,imx23-pinctrl";
> + reg = <0x80018000 2000>;
> +
> + duart_pins_a: duart at 0 {
> + reg = <0>;
> + fsl,pinmux-ids = <0x11a2 0x11b2>;
> + fsl,drive-strength = <0>;
> + fsl,voltage = <1>;
> + fsl,pull-up = <0>;
> + };
> + };
> +
> + digctl at 8001c000 {
> + reg = <0x8001c000 2000>;
> + status = "disabled";
> + };
> +
> + emi at 80020000 {
> + reg = <0x80020000 2000>;
> + status = "disabled";
> + };
> +
> + dma-apbx at 80024000 {
> + reg = <0x80024000 2000>;
> + status = "disabled";
> + };
> +
> + dcp at 80028000 {
> + reg = <0x80028000 2000>;
> + status = "disabled";
> + };
> +
> + pxp at 8002a000 {
> + reg = <0x8002a000 2000>;
> + status = "disabled";
> + };
> +
> + ocotp at 8002c000 {
> + reg = <0x8002c000 2000>;
> + status = "disabled";
> + };
> +
> + axi-ahb at 8002e000 {
> + reg = <0x8002e000 2000>;
> + status = "disabled";
> + };
> +
> + lcdif at 80030000 {
> + reg = <0x80030000 2000>;
> + status = "disabled";
> + };
> +
> + ssp1: ssp at 80034000 {
> + reg = <0x80034000 2000>;
> + status = "disabled";
> + };
> +
> + tvenc at 80038000 {
> + reg = <0x80038000 2000>;
> + status = "disabled";
> + };
> + };
> +
> + apbx at 80040000 {
> + compatible = "simple-bus";
> + #address-cells = <1>;
> + #size-cells = <1>;
> + reg = <0x80040000 0x40000>;
> + ranges;
> +
> + clkctl at 80040000 {
> + reg = <0x80040000 2000>;
> + status = "disabled";
> + };
> +
> + saif0: saif at 80042000 {
> + reg = <0x80042000 2000>;
> + status = "disabled";
> + };
> +
> + power at 80044000 {
> + reg = <0x80044000 2000>;
> + status = "disabled";
> + };
> +
> + saif1: saif at 80046000 {
> + reg = <0x80046000 2000>;
> + status = "disabled";
> + };
> +
> + audio-out at 80048000 {
> + reg = <0x80048000 2000>;
> + status = "disabled";
> + };
> +
> + audio-in at 8004c000 {
> + reg = <0x8004c000 2000>;
> + status = "disabled";
> + };
> +
> + lradc at 80050000 {
> + reg = <0x80050000 2000>;
> + status = "disabled";
> + };
> +
> + spdif at 80054000 {
> + reg = <0x80054000 2000>;
> + status = "disabled";
> + };
> +
> + i2c at 80058000 {
> + reg = <0x80058000 2000>;
> + status = "disabled";
> + };
> +
> + rtc at 8005c000 {
> + reg = <0x8005c000 2000>;
> + status = "disabled";
> + };
> +
> + pwm at 80064000 {
> + reg = <0x80064000 2000>;
> + status = "disabled";
> + };
> +
> + timrot at 80068000 {
> + reg = <0x80068000 2000>;
> + status = "disabled";
> + };
> +
> + auart0: serial at 8006c000 {
> + reg = <0x8006c000 0x2000>;
> + status = "disabled";
> + };
> +
> + auart1: serial at 8006e000 {
> + reg = <0x8006e000 0x2000>;
> + status = "disabled";
> + };
> +
> + duart: serial at 80070000 {
> + compatible = "arm,pl011", "arm,primecell";
> + reg = <0x80070000 0x2000>;
> + interrupts = <0>;
> + status = "disabled";
> + };
> +
> + usbphy at 8007c000 {
> + reg = <0x8007c000 0x2000>;
> + status = "disabled";
> + };
> + };
> + };
> +
> + ahb at 80080000 {
> + compatible = "simple-bus";
> + #address-cells = <1>;
> + #size-cells = <1>;
> + reg = <0x80080000 0x80000>;
> + ranges;
> +
> + usbctrl at 80080000 {
> + reg = <0x80080000 0x10000>;
> + status = "disabled";
> + };
> + };
> +};
> diff --git a/arch/arm/mach-mxs/Kconfig b/arch/arm/mach-mxs/Kconfig
> index 15bb4e2..8138a13 100644
> --- a/arch/arm/mach-mxs/Kconfig
> +++ b/arch/arm/mach-mxs/Kconfig
> @@ -23,6 +23,7 @@ comment "MXS platforms:"
>
> config MACH_MXS_DT
> bool "Support MXS platforms from device tree"
> + select SOC_IMX23
> select SOC_IMX28
> select USE_OF
> help
> diff --git a/arch/arm/mach-mxs/mach-mxs.c b/arch/arm/mach-mxs/mach-mxs.c
> index 5d81a23..182ea75 100644
> --- a/arch/arm/mach-mxs/mach-mxs.c
> +++ b/arch/arm/mach-mxs/mach-mxs.c
> @@ -41,6 +41,15 @@ static void __init mxs_dt_init_irq(void)
> of_irq_init(mxs_irq_match);
> }
>
> +static void __init imx23_timer_init(void)
> +{
> + mx23_clocks_init();
> +}
> +
> +static struct sys_timer imx23_timer = {
> + .init = imx23_timer_init,
> +};
> +
> static void __init imx28_timer_init(void)
> {
> mx28_clocks_init();
> @@ -69,12 +78,27 @@ static void __init mxs_machine_init(void)
> NULL, NULL);
> }
>
> +static const char *imx23_dt_compat[] __initdata = {
> + "fsl,imx23-evk",
> + "fsl,imx23",
> + NULL,
> +};
> +
> static const char *imx28_dt_compat[] __initdata = {
> "fsl,imx28-evk",
> "fsl,imx28",
> NULL,
> };
>
> +DT_MACHINE_START(IMX23, "Freescale i.MX23 (Device Tree)")
> + .map_io = mx23_map_io,
> + .init_irq = mxs_dt_init_irq,
> + .timer = &imx23_timer,
> + .init_machine = mxs_machine_init,
> + .dt_compat = imx23_dt_compat,
> + .restart = mxs_restart,
> +MACHINE_END
> +
> DT_MACHINE_START(IMX28, "Freescale i.MX28 (Device Tree)")
> .map_io = mx28_map_io,
> .init_irq = mxs_dt_init_irq,
> diff --git a/drivers/clk/mxs/clk-imx23.c b/drivers/clk/mxs/clk-imx23.c
> index dcae112..07fe1f1 100644
> --- a/drivers/clk/mxs/clk-imx23.c
> +++ b/drivers/clk/mxs/clk-imx23.c
> @@ -87,6 +87,7 @@ static struct clk_lookup hbus_lookups[] __initdata = {
>
> static struct clk_lookup xbus_lookups[] __initdata = {
> { .dev_id = "duart", .con_id = "apb_pclk"},
> + { .dev_id = "80070000.serial", .con_id = "apb_pclk"},
> { .dev_id = "mxs-dma-apbx", },
> { .dev_id = "80024000.dma-apbx", },
> };
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