[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>
diff --git a/include/asm-powerpc/processor.h b/include/asm-powerpc/processor.h
index 57643b5..93f83ef 100644
--- a/include/asm-powerpc/processor.h
+++ b/include/asm-powerpc/processor.h
@@ -22,22 +22,6 @@
* -- BenH.
*/
-/* Platforms codes (to be obsoleted) */
-#define PLATFORM_PSERIES 0x0100
-#define PLATFORM_PSERIES_LPAR 0x0101
-#define PLATFORM_ISERIES_LPAR 0x0201
-#define PLATFORM_LPAR 0x0001
-#define PLATFORM_POWERMAC 0x0400
-#define PLATFORM_MAPLE 0x0500
-#define PLATFORM_PREP 0x0600
-#define PLATFORM_CHRP 0x0700
-#define PLATFORM_CELL 0x1000
-
-/* Compat platform codes for 32 bits */
-#define _MACH_prep PLATFORM_PREP
-#define _MACH_Pmac PLATFORM_POWERMAC
-#define _MACH_chrp PLATFORM_CHRP
-
/* PREP sub-platform types see residual.h for these */
#define _PREP_Motorola 0x01 /* motorola prep */
#define _PREP_Firm 0x02 /* firmworks prep */
@@ -49,15 +33,14 @@
#define _CHRP_IBM 0x05 /* IBM chrp, the longtrail and longtrail 2 */
#define _CHRP_Pegasos 0x06 /* Genesi/bplan's Pegasos and Pegasos2 */
-#ifdef __KERNEL__
-#define platform_is_pseries() (_machine == PLATFORM_PSERIES || \
- _machine == PLATFORM_PSERIES_LPAR)
+#if defined(__KERNEL__) && defined(CONFIG_PPC32)
+
+extern int _chrp_type;
#ifdef CONFIG_PPC_PREP
/* what kind of prep workstation we are */
extern int _prep_type;
-extern int _chrp_type;
/*
* This is used to identify the board type from a given PReP board
@@ -69,18 +52,12 @@
#endif /* CONFIG_PPC_PREP */
-#if defined(CONFIG_PPC_MULTIPLATFORM)
-extern int _machine;
-
-#elif defined(CONFIG_PPC_ISERIES)
-/*
- * iSeries is soon to become MULTIPLATFORM hopefully ...
- */
-#define _machine PLATFORM_ISERIES_LPAR
-#else
+#ifndef CONFIG_PPC_MULTIPLATFORM
#define _machine 0
#endif /* CONFIG_PPC_MULTIPLATFORM */
-#endif /* __KERNEL__ */
+
+#endif /* defined(__KERNEL__) && defined(CONFIG_PPC32) */
+
/*
* Default implementation of macro that returns current
* instruction pointer ("program counter").