1 files changed, 121 insertions, 0 deletions

diff --git a/arch/arm/mach-mxs/mach-mxs.c b/arch/arm/mach-mxs/mach-mxs.c
new file mode 100644
index 000000000000..8cac94b33020
--- /dev/null
+++ b/arch/arm/mach-mxs/mach-mxs.c
@@ -0,0 +1,121 @@
+/*
+ * 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 int __init mxs_gpio_add_irq_domain(struct device_node *np,
+                                struct device_node *interrupt_parent)
+{
+        static int gpio_irq_base = MXS_GPIO_IRQ_START;
+
+        irq_domain_add_legacy(np, 32, gpio_irq_base, 0, &irq_domain_simple_ops, NULL);
+        gpio_irq_base += 32;
+
+        return 0;
+}
+
+static const struct of_device_id mxs_irq_match[] __initconst = {
+        { .compatible = "fsl,mxs-icoll", .data = mxs_icoll_add_irq_domain, },
+        { .compatible = "fsl,mxs-gpio", .data = mxs_gpio_add_irq_domain, },
+        { /* sentinel */ }
+};
+
+static void __init mxs_dt_init_irq(void)
+{
+        icoll_init_irq();
+        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();
+}
+
+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 *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,
+        .timer          = &imx28_timer,
+        .init_machine   = mxs_machine_init,
+        .dt_compat      = imx28_dt_compat,
+        .restart        = mxs_restart,
+MACHINE_END