diff options
| author | Matt Reimer <mreimer@vpop.net> | 2005-10-28 16:25:02 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2005-10-28 16:25:02 +0100 |
| commit | d9e29649875df82828167dd45c802d942db863ba (patch) | |
| tree | 8ce0d5d46bde4a92e212aabe18a3a86f508c8fd4 /arch | |
| parent | 80a18573cea2e6d8e95abe4d42bfc5f97761999a (diff) | |
[ARM] 3029/1: Add HWUART support for PXA 255/26x
Patch from Matt Reimer
Adds support for HWUART on PXA 255 / 26x. This patch originally came from
http://svn.rungie.com/svn/gumstix-buildroot/trunk/sources/kernel-patches/000-gumstix-hwuart.patch
and has been tweaked by me.
Signed-off-by: Matt Reimer <mreimer@vpop.net>
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-pxa/generic.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/generic.c index 719b91e93fa..218eb9671fa 100644 --- a/arch/arm/mach-pxa/generic.c +++ b/arch/arm/mach-pxa/generic.c @@ -253,6 +253,10 @@ static struct platform_device stuart_device = { .name = "pxa2xx-uart", .id = 2, }; +static struct platform_device hwuart_device = { + .name = "pxa2xx-uart", + .id = 3, +}; static struct resource i2c_resources[] = { { @@ -310,7 +314,19 @@ static struct platform_device *devices[] __initdata = { static int __init pxa_init(void) { - return platform_add_devices(devices, ARRAY_SIZE(devices)); + int cpuid, ret; + + ret = platform_add_devices(devices, ARRAY_SIZE(devices)); + if (ret) + return ret; + + /* Only add HWUART for PXA255/26x; PXA210/250/27x do not have it. */ + cpuid = read_cpuid(CPUID_ID); + if (((cpuid >> 4) & 0xfff) == 0x2d0 || + ((cpuid >> 4) & 0xfff) == 0x290) + ret = platform_device_register(&hwuart_device); + + return ret; } subsys_initcall(pxa_init); |