[PATCH 04/14] ux500: move irq and common maps to cpu.c
Rabin Vincent
rabin.vincent at stericsson.com
Tue Apr 27 00:16:42 EDT 2010
Move IRQ initialization and common io mapping setup code to cpu.c,
renaming U8500* to UX500* along the way.
Acked-by: Linus Walleij <linus.walleij at stericsson.com>
Acked-by: Srinidhi Kasagar <srinidhi.kasagar at stericsson.com>
Signed-off-by: Rabin Vincent <rabin.vincent at stericsson.com>
---
arch/arm/mach-ux500/Makefile | 2 +-
arch/arm/mach-ux500/board-mop500.c | 2 +-
arch/arm/mach-ux500/cpu-u8500.c | 44 +------------------
arch/arm/mach-ux500/cpu.c | 68 ++++++++++++++++++++++++++++++
arch/arm/mach-ux500/include/mach/setup.h | 13 +++++-
5 files changed, 83 insertions(+), 46 deletions(-)
create mode 100644 arch/arm/mach-ux500/cpu.c
diff --git a/arch/arm/mach-ux500/Makefile b/arch/arm/mach-ux500/Makefile
index 95e6e24..6deee85 100644
--- a/arch/arm/mach-ux500/Makefile
+++ b/arch/arm/mach-ux500/Makefile
@@ -2,7 +2,7 @@
# Makefile for the linux kernel, U8500 machine.
#
-obj-y := clock.o
+obj-y := clock.o cpu.o
obj-$(CONFIG_ARCH_U8500) += cpu-u8500.o
obj-$(CONFIG_MACH_U8500_MOP) += board-mop500.o
obj-$(CONFIG_SMP) += platsmp.o headsmp.o localtimer.o
diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index 4335186..9ca4709 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -221,7 +221,7 @@ MACHINE_START(U8500, "ST-Ericsson MOP500 platform")
.io_pg_offst = (IO_ADDRESS(U8500_UART2_BASE) >> 18) & 0xfffc,
.boot_params = 0x100,
.map_io = u8500_map_io,
- .init_irq = u8500_init_irq,
+ .init_irq = ux500_init_irq,
/* we re-use nomadik timer here */
.timer = &u8500_timer,
.init_machine = u8500_init_machine,
diff --git a/arch/arm/mach-ux500/cpu-u8500.c b/arch/arm/mach-ux500/cpu-u8500.c
index 8919af4..2c8aa93 100644
--- a/arch/arm/mach-ux500/cpu-u8500.c
+++ b/arch/arm/mach-ux500/cpu-u8500.c
@@ -18,9 +18,7 @@
#include <linux/io.h>
#include <asm/localtimer.h>
-#include <asm/hardware/gic.h>
#include <asm/mach/map.h>
-#include <asm/hardware/cache-l2x0.h>
#include <plat/mtu.h>
#include <mach/hardware.h>
#include <mach/setup.h>
@@ -103,32 +101,13 @@ static struct platform_device *platform_devs[] __initdata = {
&u8500_gpio_devs[8],
};
-#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_UART2_BASE, SZ_4K),
- __IO_DEV_DESC(U8500_GIC_CPU_BASE, SZ_4K),
- __IO_DEV_DESC(U8500_GIC_DIST_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),
__IO_DEV_DESC(U8500_PRCMU_BASE, SZ_4K),
- __IO_DEV_DESC(U8500_CLKRST1_BASE, SZ_4K),
- __IO_DEV_DESC(U8500_CLKRST2_BASE, SZ_4K),
- __IO_DEV_DESC(U8500_CLKRST3_BASE, SZ_4K),
- __IO_DEV_DESC(U8500_CLKRST5_BASE, SZ_4K),
- __IO_DEV_DESC(U8500_CLKRST6_BASE, SZ_4K),
__IO_DEV_DESC(U8500_GPIO0_BASE, SZ_4K),
__IO_DEV_DESC(U8500_GPIO1_BASE, SZ_4K),
__IO_DEV_DESC(U8500_GPIO2_BASE, SZ_4K),
__IO_DEV_DESC(U8500_GPIO3_BASE, SZ_4K),
- __IO_DEV_DESC(U8500_L2CC_BASE, SZ_4K),
};
static struct map_desc u8500ed_io_desc[] __initdata = {
@@ -142,6 +121,8 @@ static struct map_desc u8500v1_io_desc[] __initdata = {
void __init u8500_map_io(void)
{
+ ux500_map_io();
+
iotable_init(u8500_io_desc, ARRAY_SIZE(u8500_io_desc));
if (cpu_is_u8500ed())
@@ -150,12 +131,6 @@ void __init u8500_map_io(void)
iotable_init(u8500v1_io_desc, ARRAY_SIZE(u8500v1_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
*/
@@ -185,18 +160,3 @@ static void __init u8500_timer_init(void)
struct sys_timer u8500_timer = {
.init = u8500_timer_init,
};
-
-#ifdef CONFIG_CACHE_L2X0
-static int u8500_l2x0_init(void)
-{
- void __iomem *l2x0_base;
-
- l2x0_base = __io_address(U8500_L2CC_BASE);
-
- /* 64KB way size, 8 way associativity, force WA */
- l2x0_init(l2x0_base, 0x3e060000, 0xc0000fff);
-
- return 0;
-}
-early_initcall(u8500_l2x0_init);
-#endif
diff --git a/arch/arm/mach-ux500/cpu.c b/arch/arm/mach-ux500/cpu.c
new file mode 100644
index 0000000..e6a8058
--- /dev/null
+++ b/arch/arm/mach-ux500/cpu.c
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2010
+ *
+ * Author: Rabin Vincent <rabin.vincent at stericsson.com> for ST-Ericsson
+ * License terms: GNU General Public License (GPL) version 2
+ */
+
+#include <linux/platform_device.h>
+#include <linux/amba/bus.h>
+#include <linux/io.h>
+#include <linux/clk.h>
+
+#include <asm/hardware/cache-l2x0.h>
+#include <asm/hardware/gic.h>
+#include <asm/mach/map.h>
+
+#include <mach/hardware.h>
+#include <mach/setup.h>
+
+#include "clock.h"
+
+static struct map_desc ux500_io_desc[] __initdata = {
+ __IO_DEV_DESC(UX500_UART0_BASE, SZ_4K),
+ __IO_DEV_DESC(UX500_UART2_BASE, SZ_4K),
+
+ __IO_DEV_DESC(UX500_GIC_CPU_BASE, SZ_4K),
+ __IO_DEV_DESC(UX500_GIC_DIST_BASE, SZ_4K),
+ __IO_DEV_DESC(UX500_L2CC_BASE, SZ_4K),
+ __IO_DEV_DESC(UX500_TWD_BASE, SZ_4K),
+ __IO_DEV_DESC(UX500_SCU_BASE, SZ_4K),
+
+ __IO_DEV_DESC(UX500_CLKRST1_BASE, SZ_4K),
+ __IO_DEV_DESC(UX500_CLKRST2_BASE, SZ_4K),
+ __IO_DEV_DESC(UX500_CLKRST3_BASE, SZ_4K),
+ __IO_DEV_DESC(UX500_CLKRST5_BASE, SZ_4K),
+ __IO_DEV_DESC(UX500_CLKRST6_BASE, SZ_4K),
+
+ __IO_DEV_DESC(UX500_MTU0_BASE, SZ_4K),
+ __IO_DEV_DESC(UX500_MTU1_BASE, SZ_4K),
+
+ __IO_DEV_DESC(UX500_BACKUPRAM0_BASE, SZ_8K),
+};
+
+void __init ux500_map_io(void)
+{
+ iotable_init(ux500_io_desc, ARRAY_SIZE(ux500_io_desc));
+}
+
+void __init ux500_init_irq(void)
+{
+ gic_dist_init(0, __io_address(UX500_GIC_DIST_BASE), 29);
+ gic_cpu_init(0, __io_address(UX500_GIC_CPU_BASE));
+}
+
+#ifdef CONFIG_CACHE_L2X0
+static int ux500_l2x0_init(void)
+{
+ void __iomem *l2x0_base;
+
+ l2x0_base = __io_address(UX500_L2CC_BASE);
+
+ /* 64KB way size, 8 way associativity, force WA */
+ l2x0_init(l2x0_base, 0x3e060000, 0xc0000fff);
+
+ return 0;
+}
+early_initcall(ux500_l2x0_init);
+#endif
diff --git a/arch/arm/mach-ux500/include/mach/setup.h b/arch/arm/mach-ux500/include/mach/setup.h
index 65112bf..6c4c348 100644
--- a/arch/arm/mach-ux500/include/mach/setup.h
+++ b/arch/arm/mach-ux500/include/mach/setup.h
@@ -14,13 +14,22 @@
#include <asm/mach/time.h>
#include <linux/init.h>
-extern void u8500_map_io(void);
+extern void __init ux500_map_io(void);
+extern void __init u8500_map_io(void);
+
extern void u8500_init_devices(void);
-extern void u8500_init_irq(void);
+extern void __init ux500_init_irq(void);
/* We re-use nomadik_timer for this platform */
extern void nmdk_timer_init(void);
struct sys_timer;
extern struct sys_timer u8500_timer;
+#define __IO_DEV_DESC(x, sz) { \
+ .virtual = IO_ADDRESS(x), \
+ .pfn = __phys_to_pfn(x), \
+ .length = sz, \
+ .type = MT_DEVICE, \
+}
+
#endif /* __ASM_ARCH_SETUP_H */
--
1.7.0
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