ARM: mmp: support mmp2 with device tree

Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>

2 files changed, 61 insertions, 0 deletions

diff --git a/arch/arm/mach-mmp/Makefile b/arch/arm/mach-mmp/Makefile
index 77f63c12e0ba..b920b9bfbdb6 100644
--- a/arch/arm/mach-mmp/Makefile
+++ b/arch/arm/mach-mmp/Makefile
@@ -19,5 +19,6 @@ obj-$(CONFIG_MACH_BROWNSTONE)	+= brownstone.o
 obj-$(CONFIG_MACH_FLINT)        += flint.o
 obj-$(CONFIG_MACH_MARVELL_JASPER) += jasper.o
 obj-$(CONFIG_MACH_MMP_DT)       += mmp-dt.o
+obj-$(CONFIG_MACH_MMP2_DT)      += mmp2-dt.o
 obj-$(CONFIG_MACH_TETON_BGA)    += teton_bga.o
 obj-$(CONFIG_MACH_GPLUGD)       += gplugd.o
diff --git a/arch/arm/mach-mmp/mmp2-dt.c b/arch/arm/mach-mmp/mmp2-dt.c
new file mode 100644
index 000000000000..535a5ed5977b
--- /dev/null
+++ b/arch/arm/mach-mmp/mmp2-dt.c
@@ -0,0 +1,60 @@
+/*
+ *  linux/arch/arm/mach-mmp/mmp2-dt.c
+ *
+ *  Copyright (C) 2012 Marvell Technology Group Ltd.
+ *  Author: Haojian Zhuang <haojian.zhuang@marvell.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  publishhed by the Free Software Foundation.
+ */
+
+#include <linux/io.h>
+#include <linux/irq.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/irqs.h>
+#include <mach/regs-apbc.h>
+
+#include "common.h"
+
+extern void __init mmp_dt_irq_init(void);
+extern void __init mmp_dt_init_timer(void);
+
+static struct sys_timer mmp_dt_timer = {
+        .init   = mmp_dt_init_timer,
+};
+
+static const struct of_dev_auxdata mmp2_auxdata_lookup[] __initconst = {
+        OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4030000, "pxa2xx-uart.0", NULL),
+        OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4017000, "pxa2xx-uart.1", NULL),
+        OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4018000, "pxa2xx-uart.2", NULL),
+        OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4016000, "pxa2xx-uart.3", NULL),
+        OF_DEV_AUXDATA("mrvl,mmp-twsi", 0xd4011000, "pxa2xx-i2c.0", NULL),
+        OF_DEV_AUXDATA("mrvl,mmp-twsi", 0xd4025000, "pxa2xx-i2c.1", NULL),
+        OF_DEV_AUXDATA("mrvl,mmp-gpio", 0xd4019000, "pxa-gpio", NULL),
+        OF_DEV_AUXDATA("mrvl,mmp-rtc", 0xd4010000, "sa1100-rtc", NULL),
+        {}
+};
+
+static void __init mmp2_dt_init(void)
+{
+        of_platform_populate(NULL, of_default_bus_match_table,
+                             mmp2_auxdata_lookup, NULL);
+}
+
+static const char *mmp2_dt_board_compat[] __initdata = {
+        "mrvl,mmp2-brownstone",
+        NULL,
+};
+
+DT_MACHINE_START(MMP2_DT, "Marvell MMP2 (Device Tree Support)")
+        .map_io         = mmp_map_io,
+        .init_irq       = mmp_dt_irq_init,
+        .timer          = &mmp_dt_timer,
+        .init_machine   = mmp2_dt_init,
+        .dt_compat      = mmp2_dt_board_compat,
+MACHINE_END