[PATCH 10/41] ARM: restart: footbridge: use new restart hook
From: Russell King - ARM Linux <hidden>
Date: 2011-11-06 17:43:20
Subsystem:
arm port, arm/footbridge architecture, the rest · Maintainers:
Russell King, Linus Torvalds
Hook these platforms restart code into the new restart hook rather than using arch_reset(). Signed-off-by: Russell King <redacted> --- arch/arm/mach-footbridge/cats-hw.c | 1 + arch/arm/mach-footbridge/common.c | 27 ++++++++++++ arch/arm/mach-footbridge/common.h | 1 + arch/arm/mach-footbridge/ebsa285.c | 1 + arch/arm/mach-footbridge/include/mach/system.h | 52 ------------------------ arch/arm/mach-footbridge/netwinder-hw.c | 27 ++++++++++++ arch/arm/mach-footbridge/personal.c | 1 + 7 files changed, 58 insertions(+), 52 deletions(-)
diff --git a/arch/arm/mach-footbridge/cats-hw.c b/arch/arm/mach-footbridge/cats-hw.c
index 60b6774..25b4536 100644
--- a/arch/arm/mach-footbridge/cats-hw.c
+++ b/arch/arm/mach-footbridge/cats-hw.c@@ -91,4 +91,5 @@ MACHINE_START(CATS, "Chalice-CATS") .map_io = footbridge_map_io, .init_irq = footbridge_init_irq, .timer = &isa_timer, + .restart = footbridge_restart, MACHINE_END
diff --git a/arch/arm/mach-footbridge/common.c b/arch/arm/mach-footbridge/common.c
index 38a44f9..41978ee 100644
--- a/arch/arm/mach-footbridge/common.c
+++ b/arch/arm/mach-footbridge/common.c@@ -199,6 +199,33 @@ void __init footbridge_map_io(void) iotable_init(ebsa285_host_io_desc, ARRAY_SIZE(ebsa285_host_io_desc)); } +void footbridge_restart(char mode, const char *cmd) +{ + if (mode == 's') { + /* Jump into the ROM */ + soft_restart(0x41000000); + } else { + /* + * Force the watchdog to do a CPU reset. + * + * After making sure that the watchdog is disabled + * (so we can change the timer registers) we first + * enable the timer to autoreload itself. Next, the + * timer interval is set really short and any + * current interrupt request is cleared (so we can + * see an edge transition). Finally, TIMER4 is + * enabled as the watchdog. + */ + *CSR_SA110_CNTL &= ~(1 << 13); + *CSR_TIMER4_CNTL = TIMER_CNTL_ENABLE | + TIMER_CNTL_AUTORELOAD | + TIMER_CNTL_DIV16; + *CSR_TIMER4_LOAD = 0x2; + *CSR_TIMER4_CLR = 0; + *CSR_SA110_CNTL |= (1 << 13); + } +} + #ifdef CONFIG_FOOTBRIDGE_ADDIN static inline unsigned long fb_bus_sdram_offset(void)
diff --git a/arch/arm/mach-footbridge/common.h b/arch/arm/mach-footbridge/common.h
index b05e662..c9767b8 100644
--- a/arch/arm/mach-footbridge/common.h
+++ b/arch/arm/mach-footbridge/common.h@@ -8,3 +8,4 @@ extern void footbridge_map_io(void); extern void footbridge_init_irq(void); extern void isa_init_irq(unsigned int irq); +extern void footbridge_restart(char, const char *);
diff --git a/arch/arm/mach-footbridge/ebsa285.c b/arch/arm/mach-footbridge/ebsa285.c
index 012210c..27716a7 100644
--- a/arch/arm/mach-footbridge/ebsa285.c
+++ b/arch/arm/mach-footbridge/ebsa285.c@@ -21,5 +21,6 @@ MACHINE_START(EBSA285, "EBSA285") .map_io = footbridge_map_io, .init_irq = footbridge_init_irq, .timer = &footbridge_timer, + .restart = footbridge_restart, MACHINE_END
diff --git a/arch/arm/mach-footbridge/include/mach/system.h b/arch/arm/mach-footbridge/include/mach/system.h
index 249f895..794a02c 100644
--- a/arch/arm/mach-footbridge/include/mach/system.h
+++ b/arch/arm/mach-footbridge/include/mach/system.h@@ -7,12 +7,6 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ -#include <linux/io.h> -#include <asm/hardware/dec21285.h> -#include <mach/hardware.h> -#include <asm/leds.h> -#include <asm/mach-types.h> - static inline void arch_idle(void) { cpu_do_idle();
@@ -20,50 +14,4 @@ static inline void arch_idle(void) static inline void arch_reset(char mode, const char *cmd) { - if (mode == 's') { - /* - * Jump into the ROM - */ - soft_restart(0x41000000); - } else { - if (machine_is_netwinder()) { - /* open up the SuperIO chip - */ - outb(0x87, 0x370); - outb(0x87, 0x370); - - /* aux function group 1 (logical device 7) - */ - outb(0x07, 0x370); - outb(0x07, 0x371); - - /* set GP16 for WD-TIMER output - */ - outb(0xe6, 0x370); - outb(0x00, 0x371); - - /* set a RED LED and toggle WD_TIMER for rebooting - */ - outb(0xc4, 0x338); - } else { - /* - * Force the watchdog to do a CPU reset. - * - * After making sure that the watchdog is disabled - * (so we can change the timer registers) we first - * enable the timer to autoreload itself. Next, the - * timer interval is set really short and any - * current interrupt request is cleared (so we can - * see an edge transition). Finally, TIMER4 is - * enabled as the watchdog. - */ - *CSR_SA110_CNTL &= ~(1 << 13); - *CSR_TIMER4_CNTL = TIMER_CNTL_ENABLE | - TIMER_CNTL_AUTORELOAD | - TIMER_CNTL_DIV16; - *CSR_TIMER4_LOAD = 0x2; - *CSR_TIMER4_CLR = 0; - *CSR_SA110_CNTL |= (1 << 13); - } - } }
diff --git a/arch/arm/mach-footbridge/netwinder-hw.c b/arch/arm/mach-footbridge/netwinder-hw.c
index 0d3846f..80a1c5c 100644
--- a/arch/arm/mach-footbridge/netwinder-hw.c
+++ b/arch/arm/mach-footbridge/netwinder-hw.c@@ -645,6 +645,32 @@ fixup_netwinder(struct tag *tags, char **cmdline, struct meminfo *mi) #endif } +static void netwinder_restart(char mode, const char *cmd) +{ + if (mode == 's') { + /* Jump into the ROM */ + soft_restart(0x41000000); + } else { + local_irq_disable(); + local_fiq_disable(); + + /* open up the SuperIO chip */ + outb(0x87, 0x370); + outb(0x87, 0x370); + + /* aux function group 1 (logical device 7) */ + outb(0x07, 0x370); + outb(0x07, 0x371); + + /* set GP16 for WD-TIMER output */ + outb(0xe6, 0x370); + outb(0x00, 0x371); + + /* set a RED LED and toggle WD_TIMER for rebooting */ + outb(0xc4, 0x338); + } +} + MACHINE_START(NETWINDER, "Rebel-NetWinder") /* Maintainer: Russell King/Rebel.com */ .atag_offset = 0x100,
@@ -656,4 +682,5 @@ MACHINE_START(NETWINDER, "Rebel-NetWinder") .map_io = footbridge_map_io, .init_irq = footbridge_init_irq, .timer = &isa_timer, + .restart = netwinder_restart, MACHINE_END
diff --git a/arch/arm/mach-footbridge/personal.c b/arch/arm/mach-footbridge/personal.c
index f41dba3..e1e9990 100644
--- a/arch/arm/mach-footbridge/personal.c
+++ b/arch/arm/mach-footbridge/personal.c@@ -19,5 +19,6 @@ MACHINE_START(PERSONAL_SERVER, "Compaq-PersonalServer") .map_io = footbridge_map_io, .init_irq = footbridge_init_irq, .timer = &footbridge_timer, + .restart = footbridge_restart, MACHINE_END
--
1.7.4.4