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openwrt-xburst/target/linux/brcm47xx/patches-2.6.37/017-MIPS-BCM47xx-bmips4kc_fix.patch
acoul e79fbe8597 linux/brcm47xx: sync yhe BCM4710 fix with the upcoming upstream patch.
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@24116 3c298f89-4303-0410-b956-a3cf2f4a3e73
2010-11-23 16:41:34 +00:00

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From 1ff5904f725e9816b5ff2b5ade1d6326558d8e01 Mon Sep 17 00:00:00 2001
From: Kevin Cernekee <cernekee@gmail.com>
To: Ralf Baechle <ralf@linux-mips.org>
Cc: <linux-mips@linux-mips.org>, <linux-kernel@vger.kernel.org>
Date: Mon, 22 Nov 2010 21:41:28 -0800
Subject: [PATCH 7/7] MIPS: Fix regression on BCM4710 processor detection
BCM4710 uses the BMIPS32 core (like BCM6345), not the MIPS 4Kc core as
was previously believed.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
---
arch/mips/include/asm/cpu.h | 4 ++--
arch/mips/kernel/cpu-probe.c | 7 ++-----
2 files changed, 4 insertions(+), 7 deletions(-)
--- a/arch/mips/include/asm/cpu.h
+++ b/arch/mips/include/asm/cpu.h
@@ -111,8 +111,8 @@
* These are the PRID's for when 23:16 == PRID_COMP_BROADCOM
*/
-#define PRID_IMP_BMIPS4KC 0x4000
-#define PRID_IMP_BMIPS32 0x8000
+#define PRID_IMP_BMIPS32_REV4 0x4000
+#define PRID_IMP_BMIPS32_REV8 0x8000
#define PRID_IMP_BMIPS3300 0x9000
#define PRID_IMP_BMIPS3300_ALT 0x9100
#define PRID_IMP_BMIPS3300_BUG 0x0000
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -905,7 +905,8 @@ static inline void cpu_probe_broadcom(st
{
decode_configs(c);
switch (c->processor_id & 0xff00) {
- case PRID_IMP_BMIPS32:
+ case PRID_IMP_BMIPS32_REV4:
+ case PRID_IMP_BMIPS32_REV8:
c->cputype = CPU_BMIPS32;
__cpu_name[cpu] = "Broadcom BMIPS32";
break;
@@ -933,10 +934,6 @@ static inline void cpu_probe_broadcom(st
__cpu_name[cpu] = "Broadcom BMIPS5000";
c->options |= MIPS_CPU_ULRI;
break;
- case PRID_IMP_BMIPS4KC:
- c->cputype = CPU_4KC;
- __cpu_name[cpu] = "MIPS 4Kc";
- break;
}
}