diff options
author | Ben Dooks <ben-linux@fluff.org> | 2008-08-08 21:10:12 +0100 |
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committer | Ben Dooks <ben-linux@fluff.org> | 2008-08-08 21:10:12 +0100 |
commit | af7a535688a758d15f06a98833e6a143b29af9de (patch) | |
tree | bac5ab210bbbbe276f0e44ed84194d7c8bb16aae /arch/arm/mach-footbridge/include/mach/system.h | |
parent | 0c17e4ceedd35c78b1c7413dbd16279a350be6bc (diff) | |
parent | c41107c2d4fd31924533f4dbc4c3428acc2b5894 (diff) |
Merge http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm into for-rmk
Diffstat (limited to 'arch/arm/mach-footbridge/include/mach/system.h')
-rw-r--r-- | arch/arm/mach-footbridge/include/mach/system.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/arch/arm/mach-footbridge/include/mach/system.h b/arch/arm/mach-footbridge/include/mach/system.h new file mode 100644 index 00000000000..01c9f407f49 --- /dev/null +++ b/arch/arm/mach-footbridge/include/mach/system.h @@ -0,0 +1,69 @@ +/* + * arch/arm/mach-footbridge/include/mach/system.h + * + * Copyright (C) 1996-1999 Russell King. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <asm/hardware/dec21285.h> +#include <asm/io.h> +#include <mach/hardware.h> +#include <asm/leds.h> +#include <asm/mach-types.h> + +static inline void arch_idle(void) +{ + cpu_do_idle(); +} + +static inline void arch_reset(char mode) +{ + if (mode == 's') { + /* + * Jump into the ROM + */ + cpu_reset(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); + } + } +} |