m68knommu: add ffs and __ffs plattform which support ISA A+ or ISA C
the ff1 and bitrev opcode appears in ISA C and ISA A+ what isn't
supported by all plattforms. The assembly optimization is automaticly
enabled if the compiler understand the required cpu keyword.
My m5235 seems to boot and run fine so far.
Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
diff --git a/arch/m68knommu/Makefile b/arch/m68knommu/Makefile
index e0b5f62..b63bbcf 100644
--- a/arch/m68knommu/Makefile
+++ b/arch/m68knommu/Makefile
@@ -8,6 +8,8 @@
# (C) Copyright 2002, Greg Ungerer <gerg@snapgear.com>
#
+KBUILD_DEFCONFIG := m5208evb_defconfig
+
platform-$(CONFIG_M68328) := 68328
platform-$(CONFIG_M68EZ328) := 68EZ328
platform-$(CONFIG_M68VZ328) := 68VZ328
@@ -90,13 +92,14 @@
cflags-$(CONFIG_M5206) := -m5200
cflags-$(CONFIG_M5206e) := -m5200
cflags-$(CONFIG_M520x) := -m5307
-cflags-$(CONFIG_M523x) := -m5307
+cflags-$(CONFIG_M523x) := $(call cc-option,-mcpu=523x,-m5307)
cflags-$(CONFIG_M5249) := -m5200
-cflags-$(CONFIG_M527x) := -m5307
+cflags-$(CONFIG_M5271) := $(call cc-option,-mcpu=5271,-m5307)
cflags-$(CONFIG_M5272) := -m5307
-cflags-$(CONFIG_M528x) := -m5307
+cflags-$(CONFIG_M5275) := $(call cc-option,-mcpu=5275,-m5307)
+cflags-$(CONFIG_M528x) := $(call cc-option,-m528x,-m5307)
cflags-$(CONFIG_M5307) := -m5307
-cflags-$(CONFIG_M532x) := -m5307
+cflags-$(CONFIG_M532x) := $(call cc-option,-mcpu=532x,-m5307)
cflags-$(CONFIG_M5407) := -m5200
cflags-$(CONFIG_M68328) := -m68000
cflags-$(CONFIG_M68EZ328) := -m68000