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authorRussell King <rmk+kernel@arm.linux.org.uk>2009-12-13 16:35:09 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-12-13 16:35:09 +0000
commitbc7ecbcbc2c0ff235382077b55de7896775afc16 (patch)
tree9918b2f3fdeebd9c99a308af94d86bc13c80d0c8 /arch/arm/mach-ux500/cpu-u8500.c
parentc52854018ad123c9ef83867462457b75bb56d452 (diff)
parent285eae0a4ba0f467341476fd4c6981e5cdafc6be (diff)
Merge branch 'devel' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 into devel
Diffstat (limited to 'arch/arm/mach-ux500/cpu-u8500.c')
-rw-r--r--arch/arm/mach-ux500/cpu-u8500.c64
1 files changed, 64 insertions, 0 deletions
diff --git a/arch/arm/mach-ux500/cpu-u8500.c b/arch/arm/mach-ux500/cpu-u8500.c
new file mode 100644
index 00000000000..5f05e5850f7
--- /dev/null
+++ b/arch/arm/mach-ux500/cpu-u8500.c
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2008-2009 ST-Ericsson
+ *
+ * Author: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.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
+ * published by the Free Software Foundation.
+ *
+ */
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/amba/bus.h>
+#include <linux/irq.h>
+#include <linux/platform_device.h>
+
+#include <asm/hardware/gic.h>
+#include <asm/mach/map.h>
+#include <mach/hardware.h>
+
+/* add any platform devices here - TODO */
+static struct platform_device *platform_devs[] __initdata = {
+ /* yet to be added, add i2c0, gpio.. */
+};
+
+#define __IO_DEV_DESC(x, sz) { \
+ .virtual = IO_ADDRESS(x), \
+ .pfn = __phys_to_pfn(x), \
+ .length = sz, \
+ .type = MT_DEVICE, \
+}
+
+/* minimum static i/o mapping required to boot U8500 platforms */
+static struct map_desc u8500_io_desc[] __initdata = {
+ __IO_DEV_DESC(U8500_GIC_CPU_BASE, SZ_4K),
+ __IO_DEV_DESC(U8500_GIC_DIST_BASE, SZ_4K),
+ __IO_DEV_DESC(U8500_MTU0_BASE, SZ_4K),
+ __IO_DEV_DESC(U8500_TWD_BASE, SZ_4K),
+ __IO_DEV_DESC(U8500_SCU_BASE, SZ_4K),
+ __IO_DEV_DESC(U8500_BACKUPRAM0_BASE, SZ_8K),
+};
+
+void __init u8500_map_io(void)
+{
+ iotable_init(u8500_io_desc, ARRAY_SIZE(u8500_io_desc));
+}
+
+void __init u8500_init_irq(void)
+{
+ gic_dist_init(0, __io_address(U8500_GIC_DIST_BASE), 29);
+ gic_cpu_init(0, __io_address(U8500_GIC_CPU_BASE));
+}
+
+/*
+ * This function is called from the board init
+ */
+void __init u8500_init_devices(void)
+{
+ /* Register the platform devices */
+ platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));
+
+ return ;
+}