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authorHaojian Zhuang <haojian.zhuang@marvell.com>2010-09-21 16:43:57 +0800
committerEric Miao <eric.y.miao@gmail.com>2010-10-09 17:07:32 +0800
commitf090c74b23de6d8f362684e4a8c4b2bf8a32b6eb (patch)
tree3d82059f5980634f884882a26b3bab23a93dfeeb /arch/arm/mach-mmp
parent799929d7048b3ec0086ed525ed7ccf6f2b8ecda6 (diff)
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ARM: mmp: update cpuid of pxa168 and pxa910
Correct the cpuid of pxa168 and pxa910. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Diffstat (limited to 'arch/arm/mach-mmp')
-rw-r--r--arch/arm/mach-mmp/common.c10
-rw-r--r--arch/arm/mach-mmp/include/mach/cputype.h49
2 files changed, 42 insertions, 17 deletions
diff --git a/arch/arm/mach-mmp/common.c b/arch/arm/mach-mmp/common.c
index 3b29fa7..0ec0ca8 100644
--- a/arch/arm/mach-mmp/common.c
+++ b/arch/arm/mach-mmp/common.c
@@ -10,13 +10,20 @@
#include <linux/init.h>
#include <linux/kernel.h>
+#include <linux/module.h>
#include <asm/page.h>
#include <asm/mach/map.h>
#include <mach/addr-map.h>
+#include <mach/cputype.h>
#include "common.h"
+#define MMP_CHIPID (AXI_VIRT_BASE + 0x82c00)
+
+unsigned int mmp_chip_id;
+EXPORT_SYMBOL(mmp_chip_id);
+
static struct map_desc standard_io_desc[] __initdata = {
{
.pfn = __phys_to_pfn(APB_PHYS_BASE),
@@ -34,4 +41,7 @@ static struct map_desc standard_io_desc[] __initdata = {
void __init mmp_map_io(void)
{
iotable_init(standard_io_desc, ARRAY_SIZE(standard_io_desc));
+
+ /* this is early, initialize mmp_chip_id here */
+ mmp_chip_id = __raw_readl(MMP_CHIPID);
}
diff --git a/arch/arm/mach-mmp/include/mach/cputype.h b/arch/arm/mach-mmp/include/mach/cputype.h
index 83b1872..f43a68b 100644
--- a/arch/arm/mach-mmp/include/mach/cputype.h
+++ b/arch/arm/mach-mmp/include/mach/cputype.h
@@ -4,36 +4,51 @@
#include <asm/cputype.h>
/*
- * CPU Stepping OLD_ID CPU_ID CHIP_ID
+ * CPU Stepping CPU_ID CHIP_ID
*
- * PXA168 A0 0x41159263 0x56158400 0x00A0A333
- * PXA910 Y0 0x41159262 0x56158000 0x00F0C910
- * MMP2 Z0 0x560f5811
+ * PXA168 S0 0x56158400 0x0000C910
+ * PXA168 A0 0x56158400 0x00A0A168
+ * PXA910 Y1 0x56158400 0x00F2C920
+ * PXA910 A0 0x56158400 0x00F2C910
+ * PXA910 A1 0x56158400 0x00A0C910
+ * PXA920 Y0 0x56158400 0x00F2C920
+ * PXA920 A0 0x56158400 0x00A0C920
+ * PXA920 A1 0x56158400 0x00A1C920
+ * MMP2 Z0 0x560f5811 0x00F00410
+ * MMP2 Z1 0x560f5811 0x00E00410
+ * MMP2 A0 0x560f5811 0x00A0A610
*/
+extern unsigned int mmp_chip_id;
+
#ifdef CONFIG_CPU_PXA168
-# define __cpu_is_pxa168(id) \
- ({ unsigned int _id = ((id) >> 8) & 0xff; _id == 0x84; })
+static inline int cpu_is_pxa168(void)
+{
+ return (((read_cpuid_id() >> 8) & 0xff) == 0x84) &&
+ ((mmp_chip_id & 0xfff) == 0x168);
+}
#else
-# define __cpu_is_pxa168(id) (0)
+#define cpu_is_pxa168() (0)
#endif
+/* cpu_is_pxa910() is shared on both pxa910 and pxa920 */
#ifdef CONFIG_CPU_PXA910
-# define __cpu_is_pxa910(id) \
- ({ unsigned int _id = ((id) >> 8) & 0xff; _id == 0x80; })
+static inline int cpu_is_pxa910(void)
+{
+ return (((read_cpuid_id() >> 8) & 0xff) == 0x84) &&
+ (((mmp_chip_id & 0xfff) == 0x910) ||
+ ((mmp_chip_id & 0xfff) == 0x920));
+}
#else
-# define __cpu_is_pxa910(id) (0)
+#define cpu_is_pxa910() (0)
#endif
#ifdef CONFIG_CPU_MMP2
-# define __cpu_is_mmp2(id) \
- ({ unsigned int _id = ((id) >> 8) & 0xff; _id == 0x58; })
+static inline int cpu_is_mmp2(void)
+{
+ return (((cpu_readid_id() >> 8) & 0xff) == 0x58);
#else
-# define __cpu_is_mmp2(id) (0)
+#define cpu_is_mmp2() (0)
#endif
-#define cpu_is_pxa168() ({ __cpu_is_pxa168(read_cpuid_id()); })
-#define cpu_is_pxa910() ({ __cpu_is_pxa910(read_cpuid_id()); })
-#define cpu_is_mmp2() ({ __cpu_is_mmp2(read_cpuid_id()); })
-
#endif /* __ASM_MACH_CPUTYPE_H */
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