diff options
Diffstat (limited to 'recipes/linux/linux-2.6.27/ts72xx/0006-Force-the-nF-bit-on.patch')
| -rw-r--r-- | recipes/linux/linux-2.6.27/ts72xx/0006-Force-the-nF-bit-on.patch | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/recipes/linux/linux-2.6.27/ts72xx/0006-Force-the-nF-bit-on.patch b/recipes/linux/linux-2.6.27/ts72xx/0006-Force-the-nF-bit-on.patch new file mode 100644 index 0000000000..db96acc060 --- /dev/null +++ b/recipes/linux/linux-2.6.27/ts72xx/0006-Force-the-nF-bit-on.patch @@ -0,0 +1,33 @@ +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 + |