ARM: mxs: add initial device tree support for imx23-evk board

It adds initial device tree support for imx23-evk board, and only
serial console is enabled.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Marek Vasut <marex@denx.de>

4 files changed, 300 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/imx23-evk.dts b/arch/arm/boot/dts/imx23-evk.dts
new file mode 100644
index 000000000000..8cad51ee6f89
--- /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@80000000 {
+                apbx@80040000 {
+                        duart: serial@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 000000000000..fb09ccd02189
--- /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@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 0x40000>;
+                        ranges;
+
+                        icoll: interrupt-controller@80000000 {
+                                compatible = "fsl,imx23-icoll", "fsl,mxs-icoll";
+                                interrupt-controller;
+                                #interrupt-cells = <1>;
+                                reg = <0x80000000 0x2000>;
+                        };
+
+                        dma-apbh@80004000 {
+                                reg = <0x80004000 2000>;
+                                status = "disabled";
+                        };
+
+                        ecc@80008000 {
+                                reg = <0x80008000 2000>;
+                                status = "disabled";
+                        };
+
+                        bch@8000a000 {
+                                reg = <0x8000a000 2000>;
+                                status = "disabled";
+                        };
+
+                        gpmi@8000c000 {
+                                reg = <0x8000c000 2000>;
+                                status = "disabled";
+                        };
+
+                        ssp0: ssp@80010000 {
+                                reg = <0x80010000 2000>;
+                                status = "disabled";
+                        };
+
+                        etm@80014000 {
+                                reg = <0x80014000 2000>;
+                                status = "disabled";
+                        };
+
+                        pinctrl@80018000 {
+                                #address-cells = <1>;
+                                #size-cells = <0>;
+                                compatible = "fsl,imx23-pinctrl";
+                                reg = <0x80018000 2000>;
+
+                                duart_pins_a: duart@0 {
+                                        reg = <0>;
+                                        fsl,pinmux-ids = <0x11a2 0x11b2>;
+                                        fsl,drive-strength = <0>;
+                                        fsl,voltage = <1>;
+                                        fsl,pull-up = <0>;
+                                };
+                        };
+
+                        digctl@8001c000 {
+                                reg = <0x8001c000 2000>;
+                                status = "disabled";
+                        };
+
+                        emi@80020000 {
+                                reg = <0x80020000 2000>;
+                                status = "disabled";
+                        };
+
+                        dma-apbx@80024000 {
+                                reg = <0x80024000 2000>;
+                                status = "disabled";
+                        };
+
+                        dcp@80028000 {
+                                reg = <0x80028000 2000>;
+                                status = "disabled";
+                        };
+
+                        pxp@8002a000 {
+                                reg = <0x8002a000 2000>;
+                                status = "disabled";
+                        };
+
+                        ocotp@8002c000 {
+                                reg = <0x8002c000 2000>;
+                                status = "disabled";
+                        };
+
+                        axi-ahb@8002e000 {
+                                reg = <0x8002e000 2000>;
+                                status = "disabled";
+                        };
+
+                        lcdif@80030000 {
+                                reg = <0x80030000 2000>;
+                                status = "disabled";
+                        };
+
+                        ssp1: ssp@80034000 {
+                                reg = <0x80034000 2000>;
+                                status = "disabled";
+                        };
+
+                        tvenc@80038000 {
+                                reg = <0x80038000 2000>;
+                                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>;
+                                status = "disabled";
+                        };
+
+                        power@80044000 {
+                                reg = <0x80044000 2000>;
+                                status = "disabled";
+                        };
+
+                        saif1: saif@80046000 {
+                                reg = <0x80046000 2000>;
+                                status = "disabled";
+                        };
+
+                        audio-out@80048000 {
+                                reg = <0x80048000 2000>;
+                                status = "disabled";
+                        };
+
+                        audio-in@8004c000 {
+                                reg = <0x8004c000 2000>;
+                                status = "disabled";
+                        };
+
+                        lradc@80050000 {
+                                reg = <0x80050000 2000>;
+                                status = "disabled";
+                        };
+
+                        spdif@80054000 {
+                                reg = <0x80054000 2000>;
+                                status = "disabled";
+                        };
+
+                        i2c@80058000 {
+                                reg = <0x80058000 2000>;
+                                status = "disabled";
+                        };
+
+                        rtc@8005c000 {
+                                reg = <0x8005c000 2000>;
+                                status = "disabled";
+                        };
+
+                        pwm@80064000 {
+                                reg = <0x80064000 2000>;
+                                status = "disabled";
+                        };
+
+                        timrot@80068000 {
+                                reg = <0x80068000 2000>;
+                                status = "disabled";
+                        };
+
+                        auart0: serial@8006c000 {
+                                reg = <0x8006c000 0x2000>;
+                                status = "disabled";
+                        };
+
+                        auart1: serial@8006e000 {
+                                reg = <0x8006e000 0x2000>;
+                                status = "disabled";
+                        };
+
+                        duart: serial@80070000 {
+                                compatible = "arm,pl011", "arm,primecell";
+                                reg = <0x80070000 0x2000>;
+                                interrupts = <0>;
+                                status = "disabled";
+                        };
+
+                        usbphy@8007c000 {
+                                reg = <0x8007c000 0x2000>;
+                                status = "disabled";
+                        };
+                };
+        };
+
+        ahb@80080000 {
+                compatible = "simple-bus";
+                #address-cells = <1>;
+                #size-cells = <1>;
+                reg = <0x80080000 0x80000>;
+                ranges;
+
+                usbctrl@80080000 {
+                        reg = <0x80080000 0x10000>;
+                        status = "disabled";
+                };
+        };
+};
diff --git a/arch/arm/mach-mxs/Kconfig b/arch/arm/mach-mxs/Kconfig
index 15bb4e211a27..8138a13e23cf 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 5d81a23943c6..182ea7529d28 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,