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authorHaojian Zhuang <haojian.zhuang@marvell.com>2012-03-01 13:25:09 +0800
committerHaojian Zhuang <haojian.zhuang@gmail.com>2012-03-07 09:32:24 +0800
commit5d48976678456f3782eeafb09efae1f52159d5e6 (patch)
tree3bbbcf20f315a6eaa0cb8ac4e9397c16e1e58e1d
parent9613b2100994da3cd2a23d886596980357ff6123 (diff)
downloadlinux-5d48976678456f3782eeafb09efae1f52159d5e6.tar.bz2
ARM: mmp: append OF support on pxa168
Enable PXA168 and aspenite support. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
-rw-r--r--arch/arm/mach-mmp/Kconfig10
-rw-r--r--arch/arm/mach-mmp/Makefile1
-rw-r--r--arch/arm/mach-mmp/mmp-dt.c75
3 files changed, 86 insertions, 0 deletions
diff --git a/arch/arm/mach-mmp/Kconfig b/arch/arm/mach-mmp/Kconfig
index 323d4c9e9f44..5a90b9a3ab6e 100644
--- a/arch/arm/mach-mmp/Kconfig
+++ b/arch/arm/mach-mmp/Kconfig
@@ -2,6 +2,16 @@ if ARCH_MMP
menu "Marvell PXA168/910/MMP2 Implmentations"
+config MACH_MMP_DT
+ bool "Support MMP2 platforms from device tree"
+ select CPU_PXA168
+ select CPU_PXA910
+ select USE_OF
+ help
+ Include support for Marvell MMP2 based platforms using
+ the device tree. Needn't select any other machine while
+ MACH_MMP_DT is enabled.
+
config MACH_ASPENITE
bool "Marvell's PXA168 Aspenite Development Board"
select CPU_PXA168
diff --git a/arch/arm/mach-mmp/Makefile b/arch/arm/mach-mmp/Makefile
index ba254a71691a..4fc0ff5dc96d 100644
--- a/arch/arm/mach-mmp/Makefile
+++ b/arch/arm/mach-mmp/Makefile
@@ -18,5 +18,6 @@ obj-$(CONFIG_MACH_TTC_DKB) += ttc_dkb.o
obj-$(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_TETON_BGA) += teton_bga.o
obj-$(CONFIG_MACH_GPLUGD) += gplugd.o
diff --git a/arch/arm/mach-mmp/mmp-dt.c b/arch/arm/mach-mmp/mmp-dt.c
new file mode 100644
index 000000000000..67075395e400
--- /dev/null
+++ b/arch/arm/mach-mmp/mmp-dt.c
@@ -0,0 +1,75 @@
+/*
+ * linux/arch/arm/mach-mmp/mmp-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/irq.h>
+#include <linux/irqdomain.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <asm/mach/arch.h>
+#include <mach/irqs.h>
+
+#include "common.h"
+
+extern struct sys_timer pxa168_timer;
+extern void __init icu_init_irq(void);
+
+static const struct of_dev_auxdata mmp_auxdata_lookup[] __initconst = {
+ OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4017000, "pxa2xx-uart.0", NULL),
+ OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4018000, "pxa2xx-uart.1", NULL),
+ OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4026000, "pxa2xx-uart.2", 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 int __init mmp_intc_add_irq_domain(struct device_node *np,
+ struct device_node *parent)
+{
+ irq_domain_add_simple(np, 0);
+ return 0;
+}
+
+static int __init mmp_gpio_add_irq_domain(struct device_node *np,
+ struct device_node *parent)
+{
+ irq_domain_add_simple(np, IRQ_GPIO_START);
+ return 0;
+}
+
+static const struct of_device_id mmp_irq_match[] __initconst = {
+ { .compatible = "mrvl,mmp-intc", .data = mmp_intc_add_irq_domain, },
+ { .compatible = "mrvl,mmp-gpio", .data = mmp_gpio_add_irq_domain, },
+ {}
+};
+
+static void __init mmp_dt_init(void)
+{
+
+ of_irq_init(mmp_irq_match);
+
+ of_platform_populate(NULL, of_default_bus_match_table,
+ mmp_auxdata_lookup, NULL);
+}
+
+static const char *pxa168_dt_board_compat[] __initdata = {
+ "mrvl,pxa168-aspenite",
+ NULL,
+};
+
+DT_MACHINE_START(PXA168_DT, "Marvell PXA168 (Device Tree Support)")
+ .map_io = mmp_map_io,
+ .init_irq = icu_init_irq,
+ .timer = &pxa168_timer,
+ .init_machine = mmp_dt_init,
+ .dt_compat = pxa168_dt_board_compat,
+MACHINE_END