Changeset 35f3b8c in mainline for arch/ppc32/src/asm.S

Timestamp:

2006-05-18T23:24:40Z (19 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

c0bc189

Parents:

8424198

Message:

ppc32 work
update framebuffer
get rid of the BAT memory mapping (not finished yet)

File:

• arch/ppc32/src/asm.S (modified) (2 diffs)

arch/ppc32/src/asm.S

@@ -34 +34 @@
 .global iret
 .global iret_syscall
+.global invalidate_bat
 .global memsetb
 .global memcpy
@@ -194 +195 @@
         rfi
         
+invalidate_bat:
+        
+        # invalidate block address translation registers
+        
+        li r14, 0
+        
+        mtspr ibat0u, r14
+        mtspr ibat0l, r14
+        
+        mtspr ibat1u, r14
+        mtspr ibat1l, r14
+        
+        mtspr ibat2u, r14
+        mtspr ibat2l, r14
+        
+        mtspr ibat3u, r14
+        mtspr ibat3l, r14
+        
+        mtspr dbat0u, r14
+        mtspr dbat0l, r14
+        
+        mtspr dbat1u, r14
+        mtspr dbat1l, r14
+        
+        mtspr dbat2u, r14
+        mtspr dbat2l, r14
+        
+        mtspr dbat3u, r14
+        mtspr dbat3l, r14
+        
+        blr
+        
 memsetb:
         rlwimi r5, r5, 8, 16, 23