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Diffstat (limited to 'arch/ppc/kernel/head_44x.S')
-rw-r--r--arch/ppc/kernel/head_44x.S12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/ppc/kernel/head_44x.S b/arch/ppc/kernel/head_44x.S
index 72ee8f33bde..69ff3a9961e 100644
--- a/arch/ppc/kernel/head_44x.S
+++ b/arch/ppc/kernel/head_44x.S
@@ -190,7 +190,9 @@ skpinv: addi r4,r4,1 /* Increment */
/* xlat fields */
lis r4,UART0_PHYS_IO_BASE@h /* RPN depends on SoC */
+#ifndef CONFIG_440EP
ori r4,r4,0x0001 /* ERPN is 1 for second 4GB page */
+#endif
/* attrib fields */
li r5,0
@@ -228,6 +230,16 @@ skpinv: addi r4,r4,1 /* Increment */
lis r4,interrupt_base@h /* IVPR only uses the high 16-bits */
mtspr SPRN_IVPR,r4
+#ifdef CONFIG_440EP
+ /* Clear DAPUIB flag in CCR0 (enable APU between CPU and FPU) */
+ mfspr r2,SPRN_CCR0
+ lis r3,0xffef
+ ori r3,r3,0xffff
+ and r2,r2,r3
+ mtspr SPRN_CCR0,r2
+ isync
+#endif
+
/*
* This is where the main kernel code starts.
*/