[PATCH 4/6] ARM: restart: at91: use new restart hook
Jean-Christophe PLAGNIOL-VILLARD
plagnioj at jcrosoft.com
Tue Nov 29 12:52:40 EST 2011
From: Russell King <rmk+kernel at arm.linux.org.uk>
Rather than using a private function pointer, use the existing
arm_pm_restart function pointer instead. We no longer need to enable
the I-cache in at91sam9_alt_reset() as the caches will now be on when
this function is called.
Update the function names to use the 'restart' terminology rather than
the 'reboot' terminology.
Signed-off-by: Russell King <rmk+kernel at arm.linux.org.uk>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>
---
arch/arm/mach-at91/at91cap9.c | 4 ++--
arch/arm/mach-at91/at91rm9200.c | 4 ++--
arch/arm/mach-at91/at91sam9260.c | 2 +-
arch/arm/mach-at91/at91sam9261.c | 2 +-
arch/arm/mach-at91/at91sam9263.c | 2 +-
arch/arm/mach-at91/at91sam9_alt_reset.S | 9 ++-------
arch/arm/mach-at91/at91sam9g45.c | 4 ++--
arch/arm/mach-at91/at91sam9rl.c | 2 +-
arch/arm/mach-at91/generic.h | 3 +--
arch/arm/mach-at91/include/mach/system.h | 5 -----
10 files changed, 13 insertions(+), 24 deletions(-)
diff --git a/arch/arm/mach-at91/at91cap9.c b/arch/arm/mach-at91/at91cap9.c
index 81a9f38..e484a09 100644
--- a/arch/arm/mach-at91/at91cap9.c
+++ b/arch/arm/mach-at91/at91cap9.c
@@ -312,7 +312,7 @@ static struct at91_gpio_bank at91cap9_gpio[] __initdata = {
}
};
-static void at91cap9_reset(void)
+static void at91cap9_restart(char mode, const char *cmd)
{
at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_PROCRST | AT91_RSTC_PERRST);
}
@@ -335,7 +335,7 @@ static void __init at91cap9_ioremap_registers(void)
static void __init at91cap9_initialize(void)
{
- at91_arch_reset = at91cap9_reset;
+ arm_pm_restart = at91cap9_restart;
at91_extern_irq = (1 << AT91CAP9_ID_IRQ0) | (1 << AT91CAP9_ID_IRQ1);
/* Register GPIO subsystem */
diff --git a/arch/arm/mach-at91/at91rm9200.c b/arch/arm/mach-at91/at91rm9200.c
index 9163d7d..99c3174 100644
--- a/arch/arm/mach-at91/at91rm9200.c
+++ b/arch/arm/mach-at91/at91rm9200.c
@@ -289,7 +289,7 @@ static struct at91_gpio_bank at91rm9200_gpio[] __initdata = {
}
};
-static void at91rm9200_reset(void)
+static void at91rm9200_restart(char mode, const char *cmd)
{
/*
* Perform a hardware reset with the use of the Watchdog timer.
@@ -314,7 +314,7 @@ static void __init at91rm9200_ioremap_registers(void)
static void __init at91rm9200_initialize(void)
{
- at91_arch_reset = at91rm9200_reset;
+ arm_pm_restart = at91rm9200_restart;
at91_extern_irq = (1 << AT91RM9200_ID_IRQ0) | (1 << AT91RM9200_ID_IRQ1)
| (1 << AT91RM9200_ID_IRQ2) | (1 << AT91RM9200_ID_IRQ3)
| (1 << AT91RM9200_ID_IRQ4) | (1 << AT91RM9200_ID_IRQ5)
diff --git a/arch/arm/mach-at91/at91sam9260.c b/arch/arm/mach-at91/at91sam9260.c
index 5e25cef..9219b29 100644
--- a/arch/arm/mach-at91/at91sam9260.c
+++ b/arch/arm/mach-at91/at91sam9260.c
@@ -327,7 +327,7 @@ static void __init at91sam9260_ioremap_registers(void)
static void __init at91sam9260_initialize(void)
{
- at91_arch_reset = at91sam9_alt_reset;
+ arm_pm_restart = at91sam9_alt_restart;
at91_extern_irq = (1 << AT91SAM9260_ID_IRQ0) | (1 << AT91SAM9260_ID_IRQ1)
| (1 << AT91SAM9260_ID_IRQ2);
diff --git a/arch/arm/mach-at91/at91sam9261.c b/arch/arm/mach-at91/at91sam9261.c
index a0538c5..b85b9ea 100644
--- a/arch/arm/mach-at91/at91sam9261.c
+++ b/arch/arm/mach-at91/at91sam9261.c
@@ -287,7 +287,7 @@ static void __init at91sam9261_ioremap_registers(void)
static void __init at91sam9261_initialize(void)
{
- at91_arch_reset = at91sam9_alt_reset;
+ arm_pm_restart = at91sam9_alt_restart;
at91_extern_irq = (1 << AT91SAM9261_ID_IRQ0) | (1 << AT91SAM9261_ID_IRQ1)
| (1 << AT91SAM9261_ID_IRQ2);
diff --git a/arch/arm/mach-at91/at91sam9263.c b/arch/arm/mach-at91/at91sam9263.c
index 0d90b6a..c26e0a1 100644
--- a/arch/arm/mach-at91/at91sam9263.c
+++ b/arch/arm/mach-at91/at91sam9263.c
@@ -306,7 +306,7 @@ static void __init at91sam9263_ioremap_registers(void)
static void __init at91sam9263_initialize(void)
{
- at91_arch_reset = at91sam9_alt_reset;
+ arm_pm_restart = at91sam9_alt_restart;
at91_extern_irq = (1 << AT91SAM9263_ID_IRQ0) | (1 << AT91SAM9263_ID_IRQ1);
/* Register GPIO subsystem */
diff --git a/arch/arm/mach-at91/at91sam9_alt_reset.S b/arch/arm/mach-at91/at91sam9_alt_reset.S
index e0256de..d3f931c 100644
--- a/arch/arm/mach-at91/at91sam9_alt_reset.S
+++ b/arch/arm/mach-at91/at91sam9_alt_reset.S
@@ -14,20 +14,15 @@
*/
#include <linux/linkage.h>
-#include <asm/system.h>
#include <mach/hardware.h>
#include <mach/at91sam9_sdramc.h>
#include <mach/at91_rstc.h>
.arm
- .globl at91sam9_alt_reset
+ .globl at91sam9_alt_restart
-at91sam9_alt_reset: mrc p15, 0, r0, c1, c0, 0
- orr r0, r0, #CR_I
- mcr p15, 0, r0, c1, c0, 0 @ enable I-cache
-
- ldr r0, .at91_va_base_sdramc @ preload constants
+at91sam9_alt_restart: ldr r0, .at91_va_base_sdramc @ preload constants
ldr r1, .at91_va_base_rstc_cr
mov r2, #1
diff --git a/arch/arm/mach-at91/at91sam9g45.c b/arch/arm/mach-at91/at91sam9g45.c
index 72c3cce..9344da5 100644
--- a/arch/arm/mach-at91/at91sam9g45.c
+++ b/arch/arm/mach-at91/at91sam9g45.c
@@ -316,7 +316,7 @@ static struct at91_gpio_bank at91sam9g45_gpio[] __initdata = {
}
};
-static void at91sam9g45_reset(void)
+static void at91sam9g45_restart(char mode, const char *cmd)
{
at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_PROCRST | AT91_RSTC_PERRST);
}
@@ -340,7 +340,7 @@ static void __init at91sam9g45_ioremap_registers(void)
static void __init at91sam9g45_initialize(void)
{
- at91_arch_reset = at91sam9g45_reset;
+ arm_pm_restart = at91sam9g45_restart;
at91_extern_irq = (1 << AT91SAM9G45_ID_IRQ0);
/* Register GPIO subsystem */
diff --git a/arch/arm/mach-at91/at91sam9rl.c b/arch/arm/mach-at91/at91sam9rl.c
index 96247f6..d6bcb1d 100644
--- a/arch/arm/mach-at91/at91sam9rl.c
+++ b/arch/arm/mach-at91/at91sam9rl.c
@@ -292,7 +292,7 @@ static void __init at91sam9rl_ioremap_registers(void)
static void __init at91sam9rl_initialize(void)
{
- at91_arch_reset = at91sam9_alt_reset;
+ arm_pm_restart = at91sam9_alt_restart;
at91_extern_irq = (1 << AT91SAM9RL_ID_IRQ0);
/* Register GPIO subsystem */
diff --git a/arch/arm/mach-at91/generic.h b/arch/arm/mach-at91/generic.h
index 4030958..4866b81 100644
--- a/arch/arm/mach-at91/generic.h
+++ b/arch/arm/mach-at91/generic.h
@@ -58,7 +58,7 @@ extern void at91_irq_suspend(void);
extern void at91_irq_resume(void);
/* reset */
-extern void at91sam9_alt_reset(void);
+extern void at91sam9_alt_restart(char, const char *);
/* shutdown */
extern void at91_ioremap_shdwc(u32 base_addr);
@@ -74,5 +74,4 @@ struct at91_gpio_bank {
extern void __init at91_gpio_init(struct at91_gpio_bank *, int nr_banks);
extern void __init at91_gpio_irq_setup(void);
-extern void (*at91_arch_reset)(void);
extern int at91_extern_irq;
diff --git a/arch/arm/mach-at91/include/mach/system.h b/arch/arm/mach-at91/include/mach/system.h
index 36af14b..079eb12 100644
--- a/arch/arm/mach-at91/include/mach/system.h
+++ b/arch/arm/mach-at91/include/mach/system.h
@@ -47,13 +47,8 @@ static inline void arch_idle(void)
#endif
}
-void (*at91_arch_reset)(void);
-
static inline void arch_reset(char mode, const char *cmd)
{
- /* call the CPU-specific reset function */
- if (at91_arch_reset)
- (at91_arch_reset)();
}
#endif
--
1.7.7
More information about the linux-arm-kernel
mailing list