This patch updates the id.c and cpu.h files to support
omap4 ES2.0 silicon detection.
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@xxxxxx>
---
arch/arm/mach-omap2/id.c | 29 ++++++++++++++++++++++-------
arch/arm/plat-omap/include/plat/cpu.h | 5 ++++-
2 files changed, 26 insertions(+), 8 deletions(-)
diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index 4808bc9..ae70ae9 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 +308,30 @@ 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;
+ 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 2e2ae53..9b38e4b 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
--
1.6.0.4
--
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