openwrt/target/linux/brcm47xx/patches-2.6.28/130-remove_scache.patch

--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -198,7 +198,6 @@ config MIPS_MALTA
 	select I8259
 	select MIPS_BOARDS_GEN
 	select MIPS_BONITO64
-	select MIPS_CPU_SCACHE
 	select PCI_GT64XXX_PCI0
 	select MIPS_MSC
 	select SWAP_IO_SPACE
@@ -1383,13 +1382,6 @@ config IP22_CPU_SCACHE
 	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
@@ -755,6 +755,8 @@ static inline void cpu_probe_mips(struct
 	case PRID_IMP_25KF:
 		c->cputype = CPU_25KF;
 		__cpu_name[cpu] = "MIPS 25Kc";
+		/* Probe for L2 cache */
+		c->scache.flags &= ~MIPS_CACHE_NOT_PRESENT;
 		break;
 	case PRID_IMP_34K:
 		c->cputype = CPU_34K;
--- a/arch/mips/mm/Makefile
+++ b/arch/mips/mm/Makefile
@@ -31,6 +31,5 @@ obj-$(CONFIG_CPU_VR41XX)	+= c-r4k.o cex-
 obj-$(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
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -1121,7 +1121,6 @@ static void __init loongson2_sc_init(voi
 
 extern int r5k_sc_init(void);
 extern int rm7k_sc_init(void);
-extern int mips_sc_init(void);
 
 static void __cpuinit setup_scache(void)
 {
@@ -1175,29 +1174,17 @@ static void __cpuinit setup_scache(void)
 #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;