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yaml --- r: 123120 b: refs/heads/master c: 9dce3ce h: refs/heads/master v: v3
git-mirror · Dec 21, 2008 · 5db66f8 · 5db66f8
1 parent 8aa2134
commit 5db66f8
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Showing 2 changed files with 12 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 64b3d0e8122b422e879b23d42f9e0e8efbbf9744
+refs/heads/master: 9dce3ce5c55c848f00429005a46fd6246cfabfbe
diff --git a/trunk/arch/powerpc/kernel/head_44x.S b/trunk/arch/powerpc/kernel/head_44x.S
@@ -68,6 +68,17 @@ _ENTRY(_start);
 	mr	r27,r7
 	li	r24,0		/* CPU number */
 
+/*
+ * In case the firmware didn't do it, we apply some workarounds
+ * that are good for all 440 core variants here
+ */
+	mfspr	r3,SPRN_CCR0
+	rlwinm	r3,r3,0,0,27	/* disable icache prefetch */
+	isync
+	mtspr	SPRN_CCR0,r3
+	isync
+	sync
+
 /*
  * Set up the initial MMU state
  *
@@ -570,7 +581,6 @@ finish_tlb_load:
 	rlwimi	r10,r12,29,30,30		/* DIRTY -> SW position */
 	and	r11,r12,r10			/* Mask PTE bits to keep */
 	andi.	r10,r12,_PAGE_USER		/* User page ? */
-	ori	r11,r11,_PAGE_GUARDED		/* 440 errata, needs G set */
 	beq	1f				/* nope, leave U bits empty */
 	rlwimi	r11,r11,3,26,28			/* yes, copy S bits to U */
 1:	tlbwe	r11,r13,PPC44x_TLB_ATTRIB	/* Write ATTRIB */