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ARM: restart: footbridge: use new restart hook 

Hook these platforms restart code into the new restart hook rather
than using arch_reset().

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2011-11-03 19:47:54 +00:00
parent 9eb4859564
commit 6fca1e17f6
7 changed files with 58 additions and 52 deletions
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1
arch/arm/mach-footbridge/cats-hw.c
View File

@ -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

27
arch/arm/mach-footbridge/common.c
View File

@ -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)

1
arch/arm/mach-footbridge/common.h
View File

@ -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 *);

1
arch/arm/mach-footbridge/ebsa285.c
View File

@ -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

52
arch/arm/mach-footbridge/include/mach/system.h
View File

@ -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);
}
}
}

27
arch/arm/mach-footbridge/netwinder-hw.c
View File

@ -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

1
arch/arm/mach-footbridge/personal.c
View File

@ -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