From 816a65ef4ce1848d8083d9e198922ddafbe221f2 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Fri, 11 Jan 2013 11:24:18 -0800 Subject: ARM: OMAP2+: Limit omap initcalls to omap only on multiplatform kernels We need to make sure that multiplatform kernels don't run omap initcalls when booted on other SoCs. Do this by adding wrapper macros for the initcalls that return early if soc_is_omap() test fails. This allows us to easily change the defines later if we have SoC specific init sections available. Tested-by: Ezequiel Garcia Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/soc.h | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) (limited to 'arch/arm/mach-omap2/soc.h') diff --git a/arch/arm/mach-omap2/soc.h b/arch/arm/mach-omap2/soc.h index f31d90774de0..092aedd7ed13 100644 --- a/arch/arm/mach-omap2/soc.h +++ b/arch/arm/mach-omap2/soc.h @@ -42,6 +42,9 @@ #undef MULTI_OMAP2 #undef OMAP_NAME +#ifdef CONFIG_ARCH_MULTIPLATFORM +#define MULTI_OMAP2 +#endif #ifdef CONFIG_SOC_OMAP2420 # ifdef OMAP_NAME # undef MULTI_OMAP2 @@ -112,6 +115,11 @@ int omap_type(void); */ unsigned int omap_rev(void); +static inline int soc_is_omap(void) +{ + return omap_rev() != 0; +} + /* * Get the CPU revision for OMAP devices */ @@ -465,5 +473,26 @@ static inline unsigned int omap4_has_ ##feat(void) \ OMAP4_HAS_FEATURE(perf_silicon, PERF_SILICON) +/* + * We need to make sure omap initcalls don't run when + * multiplatform kernels are booted on other SoCs. + */ +#define omap_initcall(level, fn) \ +static int __init __used __##fn(void) \ +{ \ + if (!soc_is_omap()) \ + return 0; \ + return fn(); \ +} \ +level(__##fn); + +#define omap_early_initcall(fn) omap_initcall(early_initcall, fn) +#define omap_core_initcall(fn) omap_initcall(core_initcall, fn) +#define omap_postcore_initcall(fn) omap_initcall(postcore_initcall, fn) +#define omap_arch_initcall(fn) omap_initcall(arch_initcall, fn) +#define omap_subsys_initcall(fn) omap_initcall(subsys_initcall, fn) +#define omap_device_initcall(fn) omap_initcall(device_initcall, fn) +#define omap_late_initcall(fn) omap_initcall(late_initcall, fn) + #endif /* __ASSEMBLY__ */ -- cgit v1.2.3 From 5af044f472501c8e9bd6bb274fb3d71d07a038cd Mon Sep 17 00:00:00 2001 From: AnilKumar Ch Date: Fri, 1 Feb 2013 15:58:22 +0530 Subject: ARM: OMAP2: AM33XX: id: Add support for AM335x PG2.0 Add support for chip id recognition of AM335x PG2.0 silicon. By default omap3xxx_check_revision() recognizes PG1.0, which is extended by adding PG2.0 support Signed-off-by: AnilKumar Ch Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/id.c | 14 ++++++++++++-- arch/arm/mach-omap2/soc.h | 1 + 2 files changed, 13 insertions(+), 2 deletions(-) (limited to 'arch/arm/mach-omap2/soc.h') diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c index 45cc7ed4dd58..8a68f1ec66b9 100644 --- a/arch/arm/mach-omap2/id.c +++ b/arch/arm/mach-omap2/id.c @@ -399,8 +399,18 @@ void __init omap3xxx_check_revision(void) } break; case 0xb944: - omap_revision = AM335X_REV_ES1_0; - cpu_rev = "1.0"; + switch (rev) { + case 0: + omap_revision = AM335X_REV_ES1_0; + cpu_rev = "1.0"; + break; + case 1: + /* FALLTHROUGH */ + default: + omap_revision = AM335X_REV_ES2_0; + cpu_rev = "2.0"; + break; + } break; case 0xb8f2: switch (rev) { diff --git a/arch/arm/mach-omap2/soc.h b/arch/arm/mach-omap2/soc.h index f31d90774de0..15e959111e23 100644 --- a/arch/arm/mach-omap2/soc.h +++ b/arch/arm/mach-omap2/soc.h @@ -387,6 +387,7 @@ IS_OMAP_TYPE(3430, 0x3430) #define AM335X_CLASS 0x33500033 #define AM335X_REV_ES1_0 AM335X_CLASS +#define AM335X_REV_ES2_0 (AM335X_CLASS | (0x1 << 8)) #define OMAP443X_CLASS 0x44300044 #define OMAP4430_REV_ES1_0 (OMAP443X_CLASS | (0x10 << 8)) -- cgit v1.2.3