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authorSascha Hauer <s.hauer@pengutronix.de>2009-02-06 15:38:22 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2009-03-13 10:34:26 +0100
commit198016e1b12d781ef00aaafbf571775a8e723f54 (patch)
treed2d45593f7c5e3ce9a703081e78fd5c6b5c29386 /arch/arm/plat-mxc/include
parentc0a5f85523132dc893916d6059370233fac1cb11 (diff)
[ARM] MXC: add cpu_is_ macros
We had hardcoded cpu_is_ macros for mxc architectures till now. As we want to run the same kernel on i.MX31 and i.MX35 this patch adds cpu_is_ macros which expand to 0 or 1 if only one architecture is compiled in and only check for the cpu type if more than one architecture is compiled in. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/plat-mxc/include')
-rw-r--r--arch/arm/plat-mxc/include/mach/common.h1
-rw-r--r--arch/arm/plat-mxc/include/mach/mx21.h3
-rw-r--r--arch/arm/plat-mxc/include/mach/mx27.h3
-rw-r--r--arch/arm/plat-mxc/include/mach/mxc.h74
4 files changed, 66 insertions, 15 deletions
diff --git a/arch/arm/plat-mxc/include/mach/common.h b/arch/arm/plat-mxc/include/mach/common.h
index 3051eee99530..f467159cbdce 100644
--- a/arch/arm/plat-mxc/include/mach/common.h
+++ b/arch/arm/plat-mxc/include/mach/common.h
@@ -23,5 +23,6 @@ extern int mx27_clocks_init(unsigned long fref);
extern int mx31_clocks_init(unsigned long fref);
extern int mxc_register_gpios(void);
extern int mxc_register_device(struct platform_device *pdev, void *data);
+extern void mxc_set_cpu_type(unsigned int type);
#endif
diff --git a/arch/arm/plat-mxc/include/mach/mx21.h b/arch/arm/plat-mxc/include/mach/mx21.h
index cfdbe051caf6..e8c4cf56c24e 100644
--- a/arch/arm/plat-mxc/include/mach/mx21.h
+++ b/arch/arm/plat-mxc/include/mach/mx21.h
@@ -54,9 +54,6 @@
#define IRAM_BASE_ADDR 0xFFFFE800 /* internal ram */
-/* this is an i.MX21 CPU */
-#define cpu_is_mx21() (1)
-
/* this CPU supports up to 192 GPIOs (don't forget the baseboard!) */
#define ARCH_NR_GPIOS (6*32 + 16)
diff --git a/arch/arm/plat-mxc/include/mach/mx27.h b/arch/arm/plat-mxc/include/mach/mx27.h
index 5f6a8a7bb19c..6e93f2c0b7bb 100644
--- a/arch/arm/plat-mxc/include/mach/mx27.h
+++ b/arch/arm/plat-mxc/include/mach/mx27.h
@@ -120,9 +120,6 @@ extern int mx27_revision(void);
/* Mandatory defines used globally */
-/* this is an i.MX27 CPU */
-#define cpu_is_mx27() (1)
-
/* this CPU supports up to 192 GPIOs (don't forget the baseboard!) */
#define ARCH_NR_GPIOS (192 + 16)
diff --git a/arch/arm/plat-mxc/include/mach/mxc.h b/arch/arm/plat-mxc/include/mach/mxc.h
index d6b0c472cd97..5fa2a07f4eaf 100644
--- a/arch/arm/plat-mxc/include/mach/mxc.h
+++ b/arch/arm/plat-mxc/include/mach/mxc.h
@@ -24,21 +24,74 @@
#error "Do not include directly."
#endif
-/* clean up all things that are not used */
-#ifndef CONFIG_ARCH_MX3
-# define cpu_is_mx31() (0)
+#define MXC_CPU_MX1 1
+#define MXC_CPU_MX21 21
+#define MXC_CPU_MX27 27
+#define MXC_CPU_MX31 31
+#define MXC_CPU_MX35 35
+
+#ifndef __ASSEMBLY__
+extern unsigned int __mxc_cpu_type;
+#endif
+
+#ifdef CONFIG_ARCH_MX1
+# ifdef mxc_cpu_type
+# undef mxc_cpu_type
+# define mxc_cpu_type __mxc_cpu_type
+# else
+# define mxc_cpu_type MXC_CPU_MX1
+# endif
+# define cpu_is_mx1() (mxc_cpu_type == MXC_CPU_MX1)
+#else
+# define cpu_is_mx1() (0)
#endif
-#ifndef CONFIG_MACH_MX21
-# define cpu_is_mx21() (0)
+#ifdef CONFIG_MACH_MX21
+# ifdef mxc_cpu_type
+# undef mxc_cpu_type
+# define mxc_cpu_type __mxc_cpu_type
+# else
+# define mxc_cpu_type MXC_CPU_MX21
+# endif
+# define cpu_is_mx21() (mxc_cpu_type == MXC_CPU_MX21)
+#else
+# define cpu_is_mx21() (0)
#endif
-#ifndef CONFIG_MACH_MX27
-# define cpu_is_mx27() (0)
+#ifdef CONFIG_MACH_MX27
+# ifdef mxc_cpu_type
+# undef mxc_cpu_type
+# define mxc_cpu_type __mxc_cpu_type
+# else
+# define mxc_cpu_type MXC_CPU_MX27
+# endif
+# define cpu_is_mx27() (mxc_cpu_type == MXC_CPU_MX27)
+#else
+# define cpu_is_mx27() (0)
#endif
-#ifndef CONFIG_MACH_MX21
-# define cpu_is_mx21() (0)
+#ifdef CONFIG_ARCH_MX31
+# ifdef mxc_cpu_type
+# undef mxc_cpu_type
+# define mxc_cpu_type __mxc_cpu_type
+# else
+# define mxc_cpu_type MXC_CPU_MX31
+# endif
+# define cpu_is_mx31() (mxc_cpu_type == MXC_CPU_MX31)
+#else
+# define cpu_is_mx31() (0)
+#endif
+
+#ifdef CONFIG_ARCH_MX35
+# ifdef mxc_cpu_type
+# undef mxc_cpu_type
+# define mxc_cpu_type __mxc_cpu_type
+# else
+# define mxc_cpu_type MXC_CPU_MX35
+# endif
+# define cpu_is_mx35() (mxc_cpu_type == MXC_CPU_MX35)
+#else
+# define cpu_is_mx35() (0)
#endif
#if defined(CONFIG_ARCH_MX3) || defined(CONFIG_ARCH_MX2)
@@ -47,4 +100,7 @@
#define CSCR_A(n) (IO_ADDRESS(WEIM_BASE_ADDR) + n * 0x10 + 0x8)
#endif
+#define cpu_is_mx3() (cpu_is_mx31() || cpu_is_mx35())
+#define cpu_is_mx2() (cpu_is_mx21() || cpu_is_mx27())
+
#endif /* __ASM_ARCH_MXC_H__ */