powerpc/pmac: Early debug output on screen on 64-bit macs

[profile/ivi/kernel-x86-ivi.git] / arch / powerpc / kernel / misc_64.S

diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S
index a781566..0db7cb4 100644 (file)
--- a/arch/powerpc/kernel/misc_64.S
+++ b/arch/powerpc/kernel/misc_64.S
@@ -249,6 +249,37 @@ _GLOBAL(__bswapdi2)
        blr
 
 #if defined(CONFIG_PPC_PMAC) || defined(CONFIG_PPC_MAPLE)
+
+_GLOBAL(rmci_on)
+       sync
+       isync
+       li      r3,0x100
+       rldicl  r3,r3,32,0
+       mfspr   r5,SPRN_HID4
+       or      r5,r5,r3
+       sync
+       mtspr   SPRN_HID4,r5
+       isync
+       slbia
+       isync
+       sync
+       blr
+
+_GLOBAL(rmci_off)
+       sync
+       isync
+       li      r3,0x100
+       rldicl  r3,r3,32,0
+       mfspr   r5,SPRN_HID4
+       andc    r5,r5,r3
+       sync
+       mtspr   SPRN_HID4,r5
+       isync
+       slbia
+       isync
+       sync
+       blr
+
 /*
  * Do an IO access in real mode
  */