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-rw-r--r--packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/ts72xx-nfbit-fix.patch18
1 files changed, 18 insertions, 0 deletions
diff --git a/packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/ts72xx-nfbit-fix.patch b/packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/ts72xx-nfbit-fix.patch
new file mode 100644
index 0000000000..bed3de37e9
--- /dev/null
+++ b/packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/ts72xx-nfbit-fix.patch
@@ -0,0 +1,18 @@
+
+Force the nF bit on. 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.
+
+Index: linux-2.6.23-rc5/arch/arm/mm/proc-arm920.S
+===================================================================
+--- linux-2.6.23-rc5.orig/arch/arm/mm/proc-arm920.S 2007-09-04 02:25:36.000000000 +0200
++++ linux-2.6.23-rc5/arch/arm/mm/proc-arm920.S 2007-09-04 02:27:02.000000000 +0200
+@@ -395,6 +395,7 @@
+ 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
+