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From 9852d9654b25b396cf5f31de376a2c211805db8b Mon Sep 17 00:00:00 2001
From: =?utf-8?q?Petr=20=C5=A0tetiar?= <ynezz@true.cz>
Date: Sat, 3 Jan 2009 21:35:03 +0100
Subject: [PATCH] Force the nF bit on
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit
Usually this is set by the bootrom. If it is not set, then the CPU core will
run from HCLK instead of FCLK, and performance will suffer. If you see
BogoMIPS of about 1/4 of your CPU clock, try turning this on; your performance
should double.
Signed-off-by: Petr Štetiar <ynezz@true.cz>
---
arch/arm/mm/proc-arm920.S | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mm/proc-arm920.S b/arch/arm/mm/proc-arm920.S
index 28cdb06..12f59db 100644
--- a/arch/arm/mm/proc-arm920.S
+++ b/arch/arm/mm/proc-arm920.S
@@ -395,6 +395,7 @@ __arm920_setup:
mrc p15, 0, r0, c1, c0 @ get control register v4
bic r0, r0, r5
orr r0, r0, r6
+ orr r0, r0, #0x40000000
mov pc, lr
.size __arm920_setup, . - __arm920_setup
--
1.6.0.4
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