diff options
| -rw-r--r-- | arch/arm/mach-omap2/id.c | 38 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/plat/cpu.h | 5 |
2 files changed, 35 insertions, 8 deletions
diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c index 9a879f959509..91d7df402b35 100644 --- a/arch/arm/mach-omap2/id.c +++ b/arch/arm/mach-omap2/id.c @@ -298,7 +298,6 @@ static void __init omap4_check_revision(void) u32 idcode; u16 hawkeye; u8 rev; - char *rev_name = "ES1.0"; /* * The IC rev detection is done with hawkeye and rev. @@ -309,14 +308,39 @@ static void __init omap4_check_revision(void) hawkeye = (idcode >> 12) & 0xffff; rev = (idcode >> 28) & 0xff; - if ((hawkeye == 0xb852) && (rev == 0x0)) { - omap_revision = OMAP4430_REV_ES1_0; - omap_chip.oc |= CHIP_IS_OMAP4430ES1; - pr_info("OMAP%04x %s\n", omap_rev() >> 16, rev_name); - return; + /* + * Few initial ES2.0 samples IDCODE is same as ES1.0 + * Use ARM register to detect the correct ES version + */ + if (!rev) { + idcode = read_cpuid(CPUID_ID); + rev = (idcode & 0xf) - 1; + } + + switch (hawkeye) { + case 0xb852: + switch (rev) { + case 0: + omap_revision = OMAP4430_REV_ES1_0; + omap_chip.oc |= CHIP_IS_OMAP4430ES1; + break; + case 1: + omap_revision = OMAP4430_REV_ES2_0; + omap_chip.oc |= CHIP_IS_OMAP4430ES2; + break; + default: + omap_revision = OMAP4430_REV_ES2_0; + omap_chip.oc |= CHIP_IS_OMAP4430ES2; + } + break; + default: + /* Unknown default to latest silicon rev as default*/ + omap_revision = OMAP4430_REV_ES2_0; + omap_chip.oc |= CHIP_IS_OMAP4430ES2; } - pr_err("Unknown OMAP4 CPU id\n"); + pr_info("OMAP%04x ES%d.0\n", + omap_rev() >> 16, ((omap_rev() >> 12) & 0xf) + 1); } #define OMAP3_SHOW_FEATURE(feat) \ diff --git a/arch/arm/plat-omap/include/plat/cpu.h b/arch/arm/plat-omap/include/plat/cpu.h index 2e2ae530fced..9b38e4bddf57 100644 --- a/arch/arm/plat-omap/include/plat/cpu.h +++ b/arch/arm/plat-omap/include/plat/cpu.h @@ -391,6 +391,7 @@ IS_OMAP_TYPE(3517, 0x3517) #define OMAP443X_CLASS 0x44300044 #define OMAP4430_REV_ES1_0 0x44300044 +#define OMAP4430_REV_ES2_0 0x44301044 /* * omap_chip bits @@ -417,10 +418,12 @@ IS_OMAP_TYPE(3517, 0x3517) #define CHIP_IS_OMAP4430ES1 (1 << 8) #define CHIP_IS_OMAP3630ES1_1 (1 << 9) #define CHIP_IS_OMAP3630ES1_2 (1 << 10) +#define CHIP_IS_OMAP4430ES2 (1 << 11) #define CHIP_IS_OMAP24XX (CHIP_IS_OMAP2420 | CHIP_IS_OMAP2430) -#define CHIP_IS_OMAP4430 (CHIP_IS_OMAP4430ES1) +#define CHIP_IS_OMAP4430 (CHIP_IS_OMAP4430ES1 | \ + CHIP_IS_OMAP4430ES2) /* * "GE" here represents "greater than or equal to" in terms of ES |