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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2006-03-28 23:15:54 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-03-28 23:15:54 +1100 |
| commit | e8222502ee6157e2713da9e0792c21f4ad458d50 (patch) | |
| tree | 0f970fb99912c257a7e5254f863a53f79d22ab14 /drivers/char/generic_nvram.c | |
| parent | 056cb48a2fb6fb31debf665695a9f97b45cfb8ec (diff) | |
| download | lwn-e8222502ee6157e2713da9e0792c21f4ad458d50.tar.gz lwn-e8222502ee6157e2713da9e0792c21f4ad458d50.zip | |
[PATCH] powerpc: Kill _machine and hard-coded platform numbers
This removes statically assigned platform numbers and reworks the
powerpc platform probe code to use a better mechanism. With this,
board support files can simply declare a new machine type with a
macro, and implement a probe() function that uses the flattened
device-tree to detect if they apply for a given machine.
We now have a machine_is() macro that replaces the comparisons of
_machine with the various PLATFORM_* constants. This commit also
changes various drivers to use the new macro instead of looking at
_machine.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'drivers/char/generic_nvram.c')
| -rw-r--r-- | drivers/char/generic_nvram.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/char/generic_nvram.c b/drivers/char/generic_nvram.c index 1b5e01e6e129..43ff59816511 100644 --- a/drivers/char/generic_nvram.c +++ b/drivers/char/generic_nvram.c @@ -22,6 +22,9 @@ #include <linux/smp_lock.h> #include <asm/uaccess.h> #include <asm/nvram.h> +#ifdef CONFIG_PPC_PMAC +#include <asm/machdep.h> +#endif #define NVRAM_SIZE 8192 @@ -92,7 +95,7 @@ static int nvram_ioctl(struct inode *inode, struct file *file, case IOC_NVRAM_GET_OFFSET: { int part, offset; - if (_machine != _MACH_Pmac) + if (!machine_is(powermac)) return -EINVAL; if (copy_from_user(&part, (void __user*)arg, sizeof(part)) != 0) return -EFAULT; |