diff options
author | Ben Dooks <ben-linux@fluff.org> | 2006-02-10 17:40:51 -0500 |
---|---|---|
committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-02-10 17:40:51 -0500 |
commit | e19816808346cc1619733532a267a11dce8f8a12 (patch) | |
tree | ea7d973e4b3569ea22fbe455322637f218fd6a39 /arch | |
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')
-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 1c316f14ed94..646a3a5d33a5 100644 --- a/arch/arm/mach-s3c2410/mach-h1940.c +++ b/arch/arm/mach-s3c2410/mach-h1940.c | |||
@@ -46,10 +46,11 @@ | |||
46 | #include <asm/irq.h> | 46 | #include <asm/irq.h> |
47 | #include <asm/mach-types.h> | 47 | #include <asm/mach-types.h> |
48 | 48 | ||
49 | //#include <asm/debug-ll.h> | 49 | |
50 | #include <asm/arch/regs-serial.h> | 50 | #include <asm/arch/regs-serial.h> |
51 | #include <asm/arch/regs-lcd.h> | 51 | #include <asm/arch/regs-lcd.h> |
52 | 52 | ||
53 | #include <asm/arch/h1940-latch.h> | ||
53 | #include <asm/arch/fb.h> | 54 | #include <asm/arch/fb.h> |
54 | 55 | ||
55 | #include <linux/serial_core.h> | 56 | #include <linux/serial_core.h> |
@@ -59,7 +60,12 @@ | |||
59 | #include "cpu.h" | 60 | #include "cpu.h" |
60 | 61 | ||
61 | static struct map_desc h1940_iodesc[] __initdata = { | 62 | static struct map_desc h1940_iodesc[] __initdata = { |
62 | /* nothing here yet */ | 63 | [0] = { |
64 | .virtual = (unsigned long)H1940_LATCH, | ||
65 | .pfn = __phys_to_pfn(H1940_PA_LATCH), | ||
66 | .length = SZ_16K, | ||
67 | .type = MT_DEVICE | ||
68 | }, | ||
63 | }; | 69 | }; |
64 | 70 | ||
65 | #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK | 71 | #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK |
@@ -92,6 +98,25 @@ static struct s3c2410_uartcfg h1940_uartcfgs[] = { | |||
92 | } | 98 | } |
93 | }; | 99 | }; |
94 | 100 | ||
101 | /* Board control latch control */ | ||
102 | |||
103 | static unsigned int latch_state = H1940_LATCH_DEFAULT; | ||
104 | |||
105 | void h1940_latch_control(unsigned int clear, unsigned int set) | ||
106 | { | ||
107 | unsigned long flags; | ||
108 | |||
109 | local_irq_save(flags); | ||
110 | |||
111 | latch_state &= ~clear; | ||
112 | latch_state |= set; | ||
113 | |||
114 | __raw_writel(latch_state, H1940_LATCH); | ||
115 | |||
116 | local_irq_restore(flags); | ||
117 | } | ||
118 | |||
119 | EXPORT_SYMBOL_GPL(h1940_latch_control); | ||
95 | 120 | ||
96 | 121 | ||
97 | /** | 122 | /** |