Thread (49 messages) 49 messages, 8 authors, 2010-10-05
STALE5727d

[PATCH 11/14] omap4: Fix silicon version detection for early samples

From: Shilimkar, Santosh <hidden>
Date: 2010-09-17 10:23:52
Also in: linux-omap

-----Original Message-----
From: Menon, Nishanth
Sent: Friday, September 17, 2010 3:48 PM
To: Shilimkar, Santosh; linux-omap at vger.kernel.org
Cc: linux-arm-kernel at lists.infradead.org
Subject: RE: [PATCH 11/14] omap4: Fix silicon version detection for early
samples
quoted
-----Original Message-----
From: linux-omap-owner at vger.kernel.org [mailto:linux-omap-
owner at vger.kernel.org] On Behalf Of Shilimkar, Santosh
Sent: Friday, September 17, 2010 4:48 AM
[..]
quoted
diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index ae70ae9..0412233 100644
--- a/arch/arm/mach-omap2/id.c
+++ b/arch/arm/mach-omap2/id.c
@@ -308,6 +308,15 @@ static void __init omap4_check_revision(void)
 	hawkeye = (idcode >> 12) & 0xffff;
 	rev = (idcode >> 28) & 0xff;

+	/*
+	 * 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;
+	}
+
Squash this to patch 10?
Actually this was kind of temporary patch and was suppose to be
reverted later and hence I kept it separate. 
Felipe, benoit suggested to have this change anyways considering
it's just one check.
http://www.mail-archive.com/linux-omap at vger.kernel.org/msg34521.html

But now I think we can fold this into id patch itself. Will fold it
into patch 10.

Regards,
Santosh
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