iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ARM: 6080/1: ux500: move irq and common maps to cpu.c

Browse Source 
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@stericsson.com>
Acked-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Rabin Vincent 2010-05-03 07:39:02 +01:00 committed by Russell King
parent 39a982b4cd
commit 178980f98e
5 changed files with 83 additions and 46 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm/mach-ux500/Makefile
View File

@ -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

2
arch/arm/mach-ux500/board-mop500.c
View File

@ -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,

44
arch/arm/mach-ux500/cpu-u8500.c
View File

@ -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

68
arch/arm/mach-ux500/cpu.c Normal file
View File

@ -0,0 +1,68 @@
/*
* Copyright (C) ST-Ericsson SA 2010
*
* Author: Rabin Vincent <rabin.vincent@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

13
arch/arm/mach-ux500/include/mach/setup.h
View File

@ -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 */