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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2006-03-28 07:15:54 -0500
committerPaul Mackerras <paulus@samba.org>2006-03-28 07:15:54 -0500
commite8222502ee6157e2713da9e0792c21f4ad458d50 (patch)
tree0f970fb99912c257a7e5254f863a53f79d22ab14 /drivers/char/generic_nvram.c
parent056cb48a2fb6fb31debf665695a9f97b45cfb8ec (diff)
[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.c5
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 @@
22#include <linux/smp_lock.h> 22#include <linux/smp_lock.h>
23#include <asm/uaccess.h> 23#include <asm/uaccess.h>
24#include <asm/nvram.h> 24#include <asm/nvram.h>
25#ifdef CONFIG_PPC_PMAC
26#include <asm/machdep.h>
27#endif
25 28
26#define NVRAM_SIZE 8192 29#define NVRAM_SIZE 8192
27 30
@@ -92,7 +95,7 @@ static int nvram_ioctl(struct inode *inode, struct file *file,
92 case IOC_NVRAM_GET_OFFSET: { 95 case IOC_NVRAM_GET_OFFSET: {
93 int part, offset; 96 int part, offset;
94 97
95 if (_machine != _MACH_Pmac) 98 if (!machine_is(powermac))
96 return -EINVAL; 99 return -EINVAL;
97 if (copy_from_user(&part, (void __user*)arg, sizeof(part)) != 0) 100 if (copy_from_user(&part, (void __user*)arg, sizeof(part)) != 0)
98 return -EFAULT; 101 return -EFAULT;