[PATCH] ARM: DRA722: add detection of SoC information.
Nishanth Menon
nm at ti.com
Thu May 29 12:05:50 PDT 2014
Add support for DRA72x device DIEID. Currently these devices are
reported as DRA75/74 family of processors.
Signed-off-by: Nishanth Menon <nm at ti.com>
---
(test using linux-next next-20140529 tag):
before: http://slexy.org/raw/s21Yb8sOhy
after: http://slexy.org/raw/s20Nx96NrY
Applies on:
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap.git
branch: omap-for-v3.16/soc
arch/arm/mach-omap2/id.c | 12 ++++++++++++
arch/arm/mach-omap2/soc.h | 1 +
2 files changed, 13 insertions(+)
diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index 71bf216..801244a 100644
--- a/arch/arm/mach-omap2/id.c
+++ b/arch/arm/mach-omap2/id.c
@@ -649,6 +649,18 @@ void __init dra7xxx_check_revision(void)
}
break;
+ case 0xb9bc:
+ switch (rev) {
+ case 0:
+ omap_revision = DRA722_REV_ES1_0;
+ break;
+ default:
+ /* If we have no new revisions */
+ omap_revision = DRA722_REV_ES1_0;
+ break;
+ }
+ break;
+
default:
/* Unknown default to latest silicon rev as default*/
pr_warn("%s: unknown idcode=0x%08x (hawkeye=0x%08x,rev=0x%d)\n",
diff --git a/arch/arm/mach-omap2/soc.h b/arch/arm/mach-omap2/soc.h
index de2a34c..01ca808 100644
--- a/arch/arm/mach-omap2/soc.h
+++ b/arch/arm/mach-omap2/soc.h
@@ -462,6 +462,7 @@ IS_OMAP_TYPE(3430, 0x3430)
#define DRA7XX_CLASS 0x07000000
#define DRA752_REV_ES1_0 (DRA7XX_CLASS | (0x52 << 16) | (0x10 << 8))
#define DRA752_REV_ES1_1 (DRA7XX_CLASS | (0x52 << 16) | (0x11 << 8))
+#define DRA722_REV_ES1_0 (DRA7XX_CLASS | (0x22 << 16) | (0x10 << 8))
void omap2xxx_check_revision(void);
void omap3xxx_check_revision(void);
--
1.7.9.5
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