diff options
| author | Ben Dooks <ben-linux@fluff.org> | 2006-02-10 22:40:51 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-02-10 22:40:51 +0000 |
| commit | e19816808346cc1619733532a267a11dce8f8a12 (patch) | |
| tree | ea7d973e4b3569ea22fbe455322637f218fd6a39 /arch/arm/mach-s3c2410 | |
| parent | b514d3192736563dee3f4ba4b659558b3cadc7f7 (diff) | |
[ARM] 3326/1: H1940 - Control latches
Patch from Ben Dooks
Define the bits for the two board control latches
that control various items on the H1940 iPAQ.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-s3c2410')
| -rw-r--r-- | arch/arm/mach-s3c2410/mach-h1940.c | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/arch/arm/mach-s3c2410/mach-h1940.c b/arch/arm/mach-s3c2410/mach-h1940.c index 1c316f14ed9..646a3a5d33a 100644 --- a/arch/arm/mach-s3c2410/mach-h1940.c +++ b/arch/arm/mach-s3c2410/mach-h1940.c @@ -46,10 +46,11 @@ #include <asm/irq.h> #include <asm/mach-types.h> -//#include <asm/debug-ll.h> + #include <asm/arch/regs-serial.h> #include <asm/arch/regs-lcd.h> +#include <asm/arch/h1940-latch.h> #include <asm/arch/fb.h> #include <linux/serial_core.h> @@ -59,7 +60,12 @@ #include "cpu.h" static struct map_desc h1940_iodesc[] __initdata = { - /* nothing here yet */ + [0] = { + .virtual = (unsigned long)H1940_LATCH, + .pfn = __phys_to_pfn(H1940_PA_LATCH), + .length = SZ_16K, + .type = MT_DEVICE + }, }; #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK @@ -92,6 +98,25 @@ static struct s3c2410_uartcfg h1940_uartcfgs[] = { } }; +/* Board control latch control */ + +static unsigned int latch_state = H1940_LATCH_DEFAULT; + +void h1940_latch_control(unsigned int clear, unsigned int set) +{ + unsigned long flags; + + local_irq_save(flags); + + latch_state &= ~clear; + latch_state |= set; + + __raw_writel(latch_state, H1940_LATCH); + + local_irq_restore(flags); +} + +EXPORT_SYMBOL_GPL(h1940_latch_control); /** |