ARM: sa1100: move StrongARM CPU ID checks to cputype.h

Move the StrongARM CPU ID checks out of the platform's hardware.h
file into asm/cputype.h

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>

diff --git a/arch/arm/include/asm/cputype.h b/arch/arm/include/asm/cputype.h
index 1ee94c716a7f87f45c00436fb9b2fa640014c811..d6a4902a75d77143ace8b3951ef47c35616376f1 100644 (file)
--- a/arch/arm/include/asm/cputype.h
+++ b/arch/arm/include/asm/cputype.h
@@ -60,6 +60,7 @@
        ((mpidr >> (MPIDR_LEVEL_BITS * level)) & MPIDR_LEVEL_MASK)
 
 #define ARM_CPU_IMP_ARM                        0x41
+#define ARM_CPU_IMP_DEC                        0x44
 #define ARM_CPU_IMP_INTEL              0x69
 
 /* ARM implemented processors */
@@ -76,6 +77,17 @@
 #define ARM_CPU_PART_CORTEX_A15                0x4100c0f0
 #define ARM_CPU_PART_MASK              0xff00fff0
 
+/* DEC implemented cores */
+#define ARM_CPU_PART_SA1100            0x4400a110
+
+/* Intel implemented cores */
+#define ARM_CPU_PART_SA1110            0x6900b110
+#define ARM_CPU_REV_SA1110_A0          0
+#define ARM_CPU_REV_SA1110_B0          4
+#define ARM_CPU_REV_SA1110_B1          5
+#define ARM_CPU_REV_SA1110_B2          6
+#define ARM_CPU_REV_SA1110_B4          8
+
 #define ARM_CPU_XSCALE_ARCH_MASK       0xe000
 #define ARM_CPU_XSCALE_ARCH_V1         0x2000
 #define ARM_CPU_XSCALE_ARCH_V2         0x4000
@@ -173,6 +185,11 @@ static inline unsigned int __attribute_const__ read_cpuid_implementor(void)
        return (read_cpuid_id() & 0xFF000000) >> 24;
 }
 
+static inline unsigned int __attribute_const__ read_cpuid_revision(void)
+{
+       return read_cpuid_id() & 0x0000000f;
+}
+
 /*
  * The CPU part number is meaningless without referring to the CPU
  * implementer: implementers are free to define their own part numbers
@@ -208,6 +225,10 @@ static inline unsigned int __attribute_const__ read_cpuid_mpidr(void)
        return read_cpuid(CPUID_MPIDR);
 }
 
+/* StrongARM-11x0 CPUs */
+#define cpu_is_sa1100() (read_cpuid_part() == ARM_CPU_PART_SA1100)
+#define cpu_is_sa1110() (read_cpuid_part() == ARM_CPU_PART_SA1110)
+
 /*
  * Intel's XScale3 core supports some v6 features (supersections, L2)
  * but advertises itself as v5 as it does not support the v6 ISA.  For

diff --git a/arch/arm/mach-sa1100/include/mach/hardware.h b/arch/arm/mach-sa1100/include/mach/hardware.h
index cbedd75a9d65e2007a10d42ea06925fc9a525761..55c85ce7010def4f3d71e453191811dfe9a393f0 100644 (file)
--- a/arch/arm/mach-sa1100/include/mach/hardware.h
+++ b/arch/arm/mach-sa1100/include/mach/hardware.h
@@ -36,28 +36,10 @@
 #define io_v2p( x )             \
    ( (((x)&0x00ffffff) | (((x)&(0x30000000>>VIO_SHIFT))<<VIO_SHIFT)) + PIO_START )
 
-#define CPU_SA1110_A0  (0)
-#define CPU_SA1110_B0  (4)
-#define CPU_SA1110_B1  (5)
-#define CPU_SA1110_B2  (6)
-#define CPU_SA1110_B4  (8)
-
-#define CPU_SA1100_ID  (0x4401a110)
-#define CPU_SA1100_MASK        (0xfffffff0)
-#define CPU_SA1110_ID  (0x6901b110)
-#define CPU_SA1110_MASK        (0xfffffff0)
-
 #define __MREG(x)      IOMEM(io_p2v(x))
 
 #ifndef __ASSEMBLY__
 
-#include <asm/cputype.h>
-
-#define CPU_REVISION   (read_cpuid_id() & 15)
-
-#define cpu_is_sa1100()        ((read_cpuid_id() & CPU_SA1100_MASK) == CPU_SA1100_ID)
-#define cpu_is_sa1110()        ((read_cpuid_id() & CPU_SA1110_MASK) == CPU_SA1110_ID)
-
 # define __REG(x)      (*((volatile unsigned long __iomem *)io_p2v(x)))
 # define __PREG(x)     (io_v2p((unsigned long)&(x)))
 

diff --git a/drivers/cpufreq/sa1110-cpufreq.c b/drivers/cpufreq/sa1110-cpufreq.c
index b5befc2111721d841a4e5801bb0f89884e92ceac..2bac9b6cfeea3b905ca99e171f5f60012f9a9363 100644 (file)
--- a/drivers/cpufreq/sa1110-cpufreq.c
+++ b/drivers/cpufreq/sa1110-cpufreq.c
@@ -159,7 +159,7 @@ sdram_calculate_timing(struct sdram_info *sd, u_int cpu_khz,
         * half speed or use delayed read latching (errata 13).
         */
        if ((ns_to_cycles(sdram->tck, sd_khz) > 1) ||
-           (CPU_REVISION < CPU_SA1110_B2 && sd_khz < 62000))
+           (read_cpuid_revision() < ARM_CPU_REV_SA1110_B2 && sd_khz < 62000))
                sd_khz /= 2;
 
        sd->mdcnfg = MDCNFG & 0x007f007f;