diff options
| author | Ian Molton <spyro@f2s.com> | 2008-06-25 21:17:16 (GMT) |
|---|---|---|
| committer | Ian Molton <spyro@f2s.com> | 2008-07-10 09:28:36 (GMT) |
| commit | aa9ae8eb1a917c8794bceef0a8e6ff1f4d7c46de (patch) | |
| tree | d3628cce8f72609640c952f4eeddc19a464a6141 | |
| parent | c0b8556f2f8146bd38324b14b1ce00f249ba8ed9 (diff) | |
| download | linux-aa9ae8eb1a917c8794bceef0a8e6ff1f4d7c46de.tar.xz | |
Fix serial broken-ness on PXA250
PXA255 and 26x are the only PXA CPUs with HWUART. This patch prevents bogus
initialisation on other models.
Signed-off-by: Ian Molton <spyro@f2s.com>
| -rw-r--r-- | arch/arm/mach-pxa/pxa25x.c | 4 | ||||
| -rw-r--r-- | include/asm-arm/arch-pxa/hardware.h | 12 |
2 files changed, 14 insertions, 2 deletions
diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c index 4cd50e3..90b441f 100644 --- a/arch/arm/mach-pxa/pxa25x.c +++ b/arch/arm/mach-pxa/pxa25x.c @@ -293,7 +293,7 @@ static int __init pxa25x_init(void) int i, ret = 0; /* Only add HWUART for PXA255/26x; PXA210/250/27x do not have it. */ - if (cpu_is_pxa25x()) + if (cpu_is_pxa255()) clks_register(&pxa25x_hwuart_clk, 1); if (cpu_is_pxa21x() || cpu_is_pxa25x()) { @@ -317,7 +317,7 @@ static int __init pxa25x_init(void) } /* Only add HWUART for PXA255/26x; PXA210/250/27x do not have it. */ - if (cpu_is_pxa25x()) + if (cpu_is_pxa255()) ret = platform_device_register(&pxa_device_hwuart); clks_register(&gpio7_clk, 1); diff --git a/include/asm-arm/arch-pxa/hardware.h b/include/asm-arm/arch-pxa/hardware.h index d9af6da..b6a8317 100644 --- a/include/asm-arm/arch-pxa/hardware.h +++ b/include/asm-arm/arch-pxa/hardware.h @@ -69,6 +69,12 @@ _id == 0x212; \ }) +#define __cpu_is_pxa255(id) \ + ({ \ + unsigned int _id = (id) >> 4 & 0xfff; \ + _id == 0x2d0; \ + }) + #define __cpu_is_pxa25x(id) \ ({ \ unsigned int _id = (id) >> 4 & 0xfff; \ @@ -76,6 +82,7 @@ }) #else #define __cpu_is_pxa21x(id) (0) +#define __cpu_is_pxa255(id) (0) #define __cpu_is_pxa25x(id) (0) #endif @@ -124,6 +131,11 @@ __cpu_is_pxa21x(read_cpuid_id()); \ }) +#define cpu_is_pxa255() \ + ({ \ + __cpu_is_pxa255(read_cpuid_id()); \ + }) + #define cpu_is_pxa25x() \ ({ \ __cpu_is_pxa25x(read_cpuid_id()); \ |