openwrt-xburst/target/linux/brcm47xx/patches-2.6.23/130-remove_scache.patch

--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -192,7 +192,6 @@
 	select I8259
 	select MIPS_BOARDS_GEN
 	select MIPS_BONITO64
-	select MIPS_CPU_SCACHE
 	select PCI_GT64XXX_PCI0
 	select MIPS_MSC
 	select SWAP_IO_SPACE
@@ -1281,13 +1280,6 @@
 	bool
 	select BOARD_SCACHE
 
-#
-# Support for a MIPS32 / MIPS64 style S-caches
-#
-config MIPS_CPU_SCACHE
-	bool
-	select BOARD_SCACHE
-
 config R5000_CPU_SCACHE
 	bool
 	select BOARD_SCACHE
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -701,6 +701,8 @@
 		break;
 	case PRID_IMP_25KF:
 		c->cputype = CPU_25KF;
+		/* Probe for L2 cache */
+		c->scache.flags &= ~MIPS_CACHE_NOT_PRESENT;
 		break;
 	case PRID_IMP_34K:
 		c->cputype = CPU_34K;
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -1101,7 +1101,6 @@
 
 extern int r5k_sc_init(void);
 extern int rm7k_sc_init(void);
-extern int mips_sc_init(void);
 
 static void __init setup_scache(void)
 {
@@ -1155,29 +1154,17 @@
 #endif
 
 	default:
-		if (c->isa_level == MIPS_CPU_ISA_M32R1 ||
-		    c->isa_level == MIPS_CPU_ISA_M32R2 ||
-		    c->isa_level == MIPS_CPU_ISA_M64R1 ||
-		    c->isa_level == MIPS_CPU_ISA_M64R2) {
-#ifdef CONFIG_MIPS_CPU_SCACHE
-			if (mips_sc_init ()) {
-				scache_size = c->scache.ways * c->scache.sets * c->scache.linesz;
-				printk("MIPS secondary cache %ldkB, %s, linesize %d bytes.\n",
-				       scache_size >> 10,
-				       way_string[c->scache.ways], c->scache.linesz);
-			}
-#else
-			if (!(c->scache.flags & MIPS_CACHE_NOT_PRESENT))
-				panic("Dunno how to handle MIPS32 / MIPS64 second level cache");
-#endif
-			return;
-		}
 		sc_present = 0;
 	}
 
 	if (!sc_present)
 		return;
 
+	if ((c->isa_level == MIPS_CPU_ISA_M32R1 ||
+	     c->isa_level == MIPS_CPU_ISA_M64R1) &&
+	    !(c->scache.flags & MIPS_CACHE_NOT_PRESENT))
+		panic("Dunno how to handle MIPS32 / MIPS64 second level cache");
+
 	/* compute a couple of other cache variables */
 	c->scache.waysize = scache_size / c->scache.ways;
 
--- a/arch/mips/mm/Makefile
+++ b/arch/mips/mm/Makefile
@@ -31,6 +31,5 @@
 obj-$(CONFIG_IP22_CPU_SCACHE)	+= sc-ip22.o
 obj-$(CONFIG_R5000_CPU_SCACHE)  += sc-r5k.o
 obj-$(CONFIG_RM7000_CPU_SCACHE)	+= sc-rm7k.o
-obj-$(CONFIG_MIPS_CPU_SCACHE)	+= sc-mips.o
 
 EXTRA_CFLAGS += -Werror