From ec023e46f7e86acb04fef5bdd1e9465f5fc39894 Mon Sep 17 00:00:00 2001 From: Leonid Iziumtsev Date: Tue, 13 Dec 2011 10:46:44 -0800 Subject: [PATCH] ARM: OMAP: ID: Chip detection for OMAP4470 Add support for detection of the next chip in the OMAP4 family: OMAP4470 ES1.0 For more details on OMAP4470, visit: http://focus.ti.com/general/docs/wtbu/wtbuproductcontent.tsp?templateId=6123&navigationId=12869&contentId=123362 Signed-off-by: Leonid Iziumtsev Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/id.c | 10 +++++++++- arch/arm/plat-omap/include/plat/cpu.h | 8 ++++++++ 2 files changed, 17 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c index 5bb4ee18564a..439afe7acdca 100644 --- a/arch/arm/mach-omap2/id.c +++ b/arch/arm/mach-omap2/id.c @@ -371,7 +371,7 @@ static void __init omap4_check_revision(void) * Few initial 4430 ES2.0 samples IDCODE is same as ES1.0 * Use ARM register to detect the correct ES version */ - if (!rev && (hawkeye != 0xb94e)) { + if (!rev && (hawkeye != 0xb94e) && (hawkeye != 0xb975)) { idcode = read_cpuid(CPUID_ID); rev = (idcode & 0xf) - 1; } @@ -408,6 +408,14 @@ static void __init omap4_check_revision(void) break; } break; + case 0xb975: + switch (rev) { + case 0: + default: + omap_revision = OMAP4470_REV_ES1_0; + break; + } + break; default: /* Unknown default to latest silicon rev as default */ omap_revision = OMAP4430_REV_ES2_3; diff --git a/arch/arm/plat-omap/include/plat/cpu.h b/arch/arm/plat-omap/include/plat/cpu.h index e5baa3cde900..34fc9136b1a0 100644 --- a/arch/arm/plat-omap/include/plat/cpu.h +++ b/arch/arm/plat-omap/include/plat/cpu.h @@ -69,6 +69,7 @@ unsigned int omap_rev(void); * cpu_is_omap343x(): True for OMAP3430 * cpu_is_omap443x(): True for OMAP4430 * cpu_is_omap446x(): True for OMAP4460 + * cpu_is_omap447x(): True for OMAP4470 */ #define GET_OMAP_CLASS (omap_rev() & 0xff) @@ -120,6 +121,7 @@ IS_OMAP_SUBCLASS(343x, 0x343) IS_OMAP_SUBCLASS(363x, 0x363) IS_OMAP_SUBCLASS(443x, 0x443) IS_OMAP_SUBCLASS(446x, 0x446) +IS_OMAP_SUBCLASS(447x, 0x447) IS_TI_SUBCLASS(816x, 0x816) IS_AM_SUBCLASS(335x, 0x335) @@ -138,6 +140,7 @@ IS_AM_SUBCLASS(335x, 0x335) #define cpu_is_omap44xx() 0 #define cpu_is_omap443x() 0 #define cpu_is_omap446x() 0 +#define cpu_is_omap447x() 0 #if defined(MULTI_OMAP1) # if defined(CONFIG_ARCH_OMAP730) @@ -368,9 +371,11 @@ IS_OMAP_TYPE(3517, 0x3517) # undef cpu_is_omap44xx # undef cpu_is_omap443x # undef cpu_is_omap446x +# undef cpu_is_omap447x # define cpu_is_omap44xx() is_omap44xx() # define cpu_is_omap443x() is_omap443x() # define cpu_is_omap446x() is_omap446x() +# define cpu_is_omap447x() is_omap447x() # endif /* Macros to detect if we have OMAP1 or OMAP2 */ @@ -421,6 +426,9 @@ IS_OMAP_TYPE(3517, 0x3517) #define OMAP446X_CLASS 0x44600044 #define OMAP4460_REV_ES1_0 (OMAP446X_CLASS | (0x10 << 8)) +#define OMAP447X_CLASS 0x44700044 +#define OMAP4470_REV_ES1_0 (OMAP447X_CLASS | (0x10 << 8)) + void omap2_check_revision(void); /*