diff options
Diffstat (limited to 'target/linux/brcm-2.6/patches/005-remove_scache.patch')
| -rw-r--r-- | target/linux/brcm-2.6/patches/005-remove_scache.patch | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/target/linux/brcm-2.6/patches/005-remove_scache.patch b/target/linux/brcm-2.6/patches/005-remove_scache.patch new file mode 100644 index 0000000..f56f72f --- /dev/null +++ b/target/linux/brcm-2.6/patches/005-remove_scache.patch @@ -0,0 +1,94 @@ +diff -urN linux-2.6.19.ref/arch/mips/Kconfig linux-2.6.19/arch/mips/Kconfig +--- linux-2.6.19.ref/arch/mips/Kconfig 2006-12-04 21:33:48.000000000 +0100 ++++ linux-2.6.19/arch/mips/Kconfig 2006-12-04 21:34:04.000000000 +0100 +@@ -283,7 +283,6 @@ + select I8259 + select MIPS_BOARDS_GEN + select MIPS_BONITO64 +- select MIPS_CPU_SCACHE + select MIPS_GT64120 + select MIPS_MSC + select SWAP_IO_SPACE +@@ -1434,13 +1433,6 @@ + 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 +diff -urN linux-2.6.19.ref/arch/mips/kernel/cpu-probe.c linux-2.6.19/arch/mips/kernel/cpu-probe.c +--- linux-2.6.19.ref/arch/mips/kernel/cpu-probe.c 2006-12-04 21:33:48.000000000 +0100 ++++ linux-2.6.19/arch/mips/kernel/cpu-probe.c 2006-12-04 21:34:04.000000000 +0100 +@@ -631,6 +631,8 @@ + 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; +diff -urN linux-2.6.19.ref/arch/mips/mm/c-r4k.c linux-2.6.19/arch/mips/mm/c-r4k.c +--- linux-2.6.19.ref/arch/mips/mm/c-r4k.c 2006-11-29 22:57:37.000000000 +0100 ++++ linux-2.6.19/arch/mips/mm/c-r4k.c 2006-12-04 21:34:04.000000000 +0100 +@@ -1038,7 +1038,6 @@ + + extern int r5k_sc_init(void); + extern int rm7k_sc_init(void); +-extern int mips_sc_init(void); + + static void __init setup_scache(void) + { +@@ -1086,29 +1085,17 @@ + return; + + 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; + +diff -urN linux-2.6.19.ref/arch/mips/mm/Makefile linux-2.6.19/arch/mips/mm/Makefile +--- linux-2.6.19.ref/arch/mips/mm/Makefile 2006-11-29 22:57:37.000000000 +0100 ++++ linux-2.6.19/arch/mips/mm/Makefile 2006-12-04 21:34:04.000000000 +0100 +@@ -30,7 +30,6 @@ + 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 + + # + # Choose one DMA coherency model |