mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-11 10:03:08 +02:00
5289528bdb
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@20253 3c298f89-4303-0410-b956-a3cf2f4a3e73
568 lines
16 KiB
Diff
568 lines
16 KiB
Diff
From 42789dfb077bb7b640ee19d0e3f7808dc5318adf Mon Sep 17 00:00:00 2001
|
|
From: Lars-Peter Clausen <lars@metafoo.de>
|
|
Date: Mon, 11 Jan 2010 04:29:35 +0100
|
|
Subject: [PATCH] /opt/Projects/openwrt/target/linux/xburst/patches-2.6.31/001-core.patch
|
|
|
|
---
|
|
arch/mips/Kconfig | 29 ++++
|
|
arch/mips/Makefile | 18 +++
|
|
arch/mips/boot/Makefile | 23 +++-
|
|
arch/mips/include/asm/bootinfo.h | 6 +
|
|
arch/mips/include/asm/cpu.h | 13 ++-
|
|
arch/mips/include/asm/mach-generic/irq.h | 2 +-
|
|
arch/mips/include/asm/r4kcache.h | 231 ++++++++++++++++++++++++++++++
|
|
arch/mips/include/asm/suspend.h | 3 +
|
|
arch/mips/kernel/cpu-probe.c | 21 +++
|
|
arch/mips/mm/c-r4k.c | 30 ++++
|
|
arch/mips/mm/cache.c | 2 +
|
|
arch/mips/mm/tlbex.c | 5 +
|
|
12 files changed, 379 insertions(+), 4 deletions(-)
|
|
|
|
--- a/arch/mips/Kconfig
|
|
+++ b/arch/mips/Kconfig
|
|
@@ -174,6 +174,9 @@ config MACH_JAZZ
|
|
Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
|
|
Olivetti M700-10 workstations.
|
|
|
|
+config MACH_JZ
|
|
+ bool "Ingenic JZ4720/JZ4740 based machines"
|
|
+
|
|
config LASAT
|
|
bool "LASAT Networks platforms"
|
|
select CEVT_R4K
|
|
@@ -677,6 +680,7 @@ source "arch/mips/alchemy/Kconfig"
|
|
source "arch/mips/basler/excite/Kconfig"
|
|
source "arch/mips/bcm63xx/Kconfig"
|
|
source "arch/mips/jazz/Kconfig"
|
|
+source "arch/mips/jz4740/Kconfig"
|
|
source "arch/mips/lasat/Kconfig"
|
|
source "arch/mips/pmc-sierra/Kconfig"
|
|
source "arch/mips/sgi-ip27/Kconfig"
|
|
--- a/arch/mips/Makefile
|
|
+++ b/arch/mips/Makefile
|
|
@@ -186,6 +186,14 @@ cflags-$(CONFIG_AR7) += -I$(srctree)/ar
|
|
load-$(CONFIG_AR7) += 0xffffffff94100000
|
|
|
|
#
|
|
+# Commond Ingenic JZ4740 series
|
|
+#
|
|
+
|
|
+core-$(CONFIG_SOC_JZ4740) += arch/mips/jz4740/
|
|
+cflags-$(CONFIG_SOC_JZ4740) += -I$(srctree)/arch/mips/include/asm/mach-jz4740
|
|
+load-$(CONFIG_SOC_JZ4740) += 0xffffffff80010000
|
|
+
|
|
+#
|
|
# Acer PICA 61, Mips Magnum 4000 and Olivetti M700.
|
|
#
|
|
core-$(CONFIG_MACH_JAZZ) += arch/mips/jazz/
|
|
@@ -704,6 +712,12 @@ makeboot =$(Q)$(MAKE) $(build)=arch/mips
|
|
|
|
all: $(all-y)
|
|
|
|
+uImage: $(vmlinux-32)
|
|
+ +@$(call makeboot,$@)
|
|
+
|
|
+zImage: $(vmlinux-32)
|
|
+ +@$(call makeboot,$@)
|
|
+
|
|
vmlinux.bin: $(vmlinux-32)
|
|
+@$(call makeboot,$@)
|
|
|
|
@@ -733,6 +747,7 @@ install:
|
|
|
|
archclean:
|
|
@$(MAKE) $(clean)=arch/mips/boot
|
|
+ @$(MAKE) $(clean)=arch/mips/boot/compressed
|
|
@$(MAKE) $(clean)=arch/mips/lasat
|
|
|
|
define archhelp
|
|
@@ -740,6 +755,9 @@ define archhelp
|
|
echo ' vmlinux.ecoff - ECOFF boot image'
|
|
echo ' vmlinux.bin - Raw binary boot image'
|
|
echo ' vmlinux.srec - SREC boot image'
|
|
+ echo ' uImage - u-boot format image (arch/$(ARCH)/boot/uImage)'
|
|
+ echo ' zImage - Compressed binary image (arch/$(ARCH)/boot/compressed/zImage)'
|
|
+ echo ' vmlinux.bin - Uncompressed binary image (arch/$(ARCH)/boot/vmlinux.bin)'
|
|
echo
|
|
echo ' These will be default as apropriate for a configured platform.'
|
|
endef
|
|
--- a/arch/mips/boot/Makefile
|
|
+++ b/arch/mips/boot/Makefile
|
|
@@ -7,6 +7,9 @@
|
|
# Copyright (C) 2004 Maciej W. Rozycki
|
|
#
|
|
|
|
+# This one must match the LOADADDR in arch/mips/Makefile!
|
|
+LOADADDR=0x80010000
|
|
+
|
|
#
|
|
# Some DECstations need all possible sections of an ECOFF executable
|
|
#
|
|
@@ -25,7 +28,7 @@ strip-flags = $(addprefix --remove-secti
|
|
|
|
VMLINUX = vmlinux
|
|
|
|
-all: vmlinux.ecoff vmlinux.srec addinitrd
|
|
+all: vmlinux.ecoff vmlinux.srec addinitrd uImage zImage
|
|
|
|
vmlinux.ecoff: $(obj)/elf2ecoff $(VMLINUX)
|
|
$(obj)/elf2ecoff $(VMLINUX) vmlinux.ecoff $(E2EFLAGS)
|
|
@@ -42,8 +45,24 @@ vmlinux.srec: $(VMLINUX)
|
|
$(obj)/addinitrd: $(obj)/addinitrd.c
|
|
$(HOSTCC) -o $@ $^
|
|
|
|
+uImage: $(VMLINUX) vmlinux.bin
|
|
+ rm -f $(obj)/vmlinux.bin.gz
|
|
+ gzip -9 $(obj)/vmlinux.bin
|
|
+ mkimage -A mips -O linux -T kernel -C gzip \
|
|
+ -a $(LOADADDR) -e $(shell sh ./$(obj)/tools/entry $(NM) $(VMLINUX) ) \
|
|
+ -n 'Linux-$(KERNELRELEASE)' \
|
|
+ -d $(obj)/vmlinux.bin.gz $(obj)/uImage
|
|
+ @echo ' Kernel: arch/mips/boot/$@ is ready'
|
|
+
|
|
+zImage:
|
|
+ $(Q)$(MAKE) $(build)=$(obj)/compressed loadaddr=$(LOADADDR) $@
|
|
+ @echo ' Kernel: arch/mips/boot/compressed/$@ is ready'
|
|
+
|
|
clean-files += addinitrd \
|
|
elf2ecoff \
|
|
vmlinux.bin \
|
|
vmlinux.ecoff \
|
|
- vmlinux.srec
|
|
+ vmlinux.srec \
|
|
+ vmlinux.bin.gz \
|
|
+ uImage \
|
|
+ zImage
|
|
--- a/arch/mips/include/asm/bootinfo.h
|
|
+++ b/arch/mips/include/asm/bootinfo.h
|
|
@@ -69,6 +69,12 @@
|
|
#define MACH_DEXXON_GDIUM2F10 5
|
|
#define MACH_LOONGSON_END 6
|
|
|
|
+/*
|
|
+ * Valid machtype for group INGENIC
|
|
+ */
|
|
+#define MACH_INGENIC_JZ4730 0 /* JZ4730 SOC */
|
|
+#define MACH_INGENIC_JZ4740 1 /* JZ4740 SOC */
|
|
+
|
|
#define CL_SIZE COMMAND_LINE_SIZE
|
|
|
|
extern char *system_type;
|
|
--- a/arch/mips/include/asm/cpu.h
|
|
+++ b/arch/mips/include/asm/cpu.h
|
|
@@ -34,7 +34,7 @@
|
|
#define PRID_COMP_LSI 0x080000
|
|
#define PRID_COMP_LEXRA 0x0b0000
|
|
#define PRID_COMP_CAVIUM 0x0d0000
|
|
-
|
|
+#define PRID_COMP_INGENIC 0xd00000
|
|
|
|
/*
|
|
* Assigned values for the product ID register. In order to detect a
|
|
@@ -133,6 +133,12 @@
|
|
#define PRID_IMP_CAVIUM_CN52XX 0x0700
|
|
|
|
/*
|
|
+ * These are the PRID's for when 23:16 == PRID_COMP_INGENIC
|
|
+ */
|
|
+
|
|
+#define PRID_IMP_JZRISC 0x0200
|
|
+
|
|
+/*
|
|
* Definitions for 7:0 on legacy processors
|
|
*/
|
|
|
|
@@ -224,6 +230,11 @@ enum cpu_type_enum {
|
|
CPU_5KC, CPU_20KC, CPU_25KF, CPU_SB1, CPU_SB1A, CPU_LOONGSON2,
|
|
CPU_CAVIUM_OCTEON,
|
|
|
|
+ /*
|
|
+ * Ingenic class processors
|
|
+ */
|
|
+ CPU_JZRISC, CPU_XBURST,
|
|
+
|
|
CPU_LAST
|
|
};
|
|
|
|
--- a/arch/mips/include/asm/r4kcache.h
|
|
+++ b/arch/mips/include/asm/r4kcache.h
|
|
@@ -17,6 +17,58 @@
|
|
#include <asm/cpu-features.h>
|
|
#include <asm/mipsmtregs.h>
|
|
|
|
+#ifdef CONFIG_JZRISC
|
|
+
|
|
+#define K0_TO_K1() \
|
|
+do { \
|
|
+ unsigned long __k0_addr; \
|
|
+ \
|
|
+ __asm__ __volatile__( \
|
|
+ "la %0, 1f\n\t" \
|
|
+ "or %0, %0, %1\n\t" \
|
|
+ "jr %0\n\t" \
|
|
+ "nop\n\t" \
|
|
+ "1: nop\n" \
|
|
+ : "=&r"(__k0_addr) \
|
|
+ : "r" (0x20000000) ); \
|
|
+} while(0)
|
|
+
|
|
+#define K1_TO_K0() \
|
|
+do { \
|
|
+ unsigned long __k0_addr; \
|
|
+ __asm__ __volatile__( \
|
|
+ "nop;nop;nop;nop;nop;nop;nop\n\t" \
|
|
+ "la %0, 1f\n\t" \
|
|
+ "jr %0\n\t" \
|
|
+ "nop\n\t" \
|
|
+ "1: nop\n" \
|
|
+ : "=&r" (__k0_addr)); \
|
|
+} while (0)
|
|
+
|
|
+#define INVALIDATE_BTB() \
|
|
+do { \
|
|
+ unsigned long tmp; \
|
|
+ __asm__ __volatile__( \
|
|
+ ".set mips32\n\t" \
|
|
+ "mfc0 %0, $16, 7\n\t" \
|
|
+ "nop\n\t" \
|
|
+ "ori %0, 2\n\t" \
|
|
+ "mtc0 %0, $16, 7\n\t" \
|
|
+ "nop\n\t" \
|
|
+ : "=&r" (tmp)); \
|
|
+} while (0)
|
|
+
|
|
+#define SYNC_WB() __asm__ __volatile__ ("sync")
|
|
+
|
|
+#else /* CONFIG_JZRISC */
|
|
+
|
|
+#define K0_TO_K1() do { } while (0)
|
|
+#define K1_TO_K0() do { } while (0)
|
|
+#define INVALIDATE_BTB() do { } while (0)
|
|
+#define SYNC_WB() do { } while (0)
|
|
+
|
|
+#endif /* CONFIG_JZRISC */
|
|
+
|
|
/*
|
|
* This macro return a properly sign-extended address suitable as base address
|
|
* for indexed cache operations. Two issues here:
|
|
@@ -144,6 +196,7 @@ static inline void flush_icache_line_ind
|
|
{
|
|
__iflush_prologue
|
|
cache_op(Index_Invalidate_I, addr);
|
|
+ INVALIDATE_BTB();
|
|
__iflush_epilogue
|
|
}
|
|
|
|
@@ -151,6 +204,7 @@ static inline void flush_dcache_line_ind
|
|
{
|
|
__dflush_prologue
|
|
cache_op(Index_Writeback_Inv_D, addr);
|
|
+ SYNC_WB();
|
|
__dflush_epilogue
|
|
}
|
|
|
|
@@ -163,6 +217,7 @@ static inline void flush_icache_line(uns
|
|
{
|
|
__iflush_prologue
|
|
cache_op(Hit_Invalidate_I, addr);
|
|
+ INVALIDATE_BTB();
|
|
__iflush_epilogue
|
|
}
|
|
|
|
@@ -170,6 +225,7 @@ static inline void flush_dcache_line(uns
|
|
{
|
|
__dflush_prologue
|
|
cache_op(Hit_Writeback_Inv_D, addr);
|
|
+ SYNC_WB();
|
|
__dflush_epilogue
|
|
}
|
|
|
|
@@ -177,6 +233,7 @@ static inline void invalidate_dcache_lin
|
|
{
|
|
__dflush_prologue
|
|
cache_op(Hit_Invalidate_D, addr);
|
|
+ SYNC_WB();
|
|
__dflush_epilogue
|
|
}
|
|
|
|
@@ -209,6 +266,7 @@ static inline void flush_scache_line(uns
|
|
static inline void protected_flush_icache_line(unsigned long addr)
|
|
{
|
|
protected_cache_op(Hit_Invalidate_I, addr);
|
|
+ INVALIDATE_BTB();
|
|
}
|
|
|
|
/*
|
|
@@ -220,6 +278,7 @@ static inline void protected_flush_icach
|
|
static inline void protected_writeback_dcache_line(unsigned long addr)
|
|
{
|
|
protected_cache_op(Hit_Writeback_Inv_D, addr);
|
|
+ SYNC_WB();
|
|
}
|
|
|
|
static inline void protected_writeback_scache_line(unsigned long addr)
|
|
@@ -396,8 +455,10 @@ static inline void blast_##pfx##cache##l
|
|
__BUILD_BLAST_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 16)
|
|
__BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 16)
|
|
__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 16)
|
|
+#ifndef CONFIG_JZRISC
|
|
__BUILD_BLAST_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 32)
|
|
__BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 32)
|
|
+#endif
|
|
__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 32)
|
|
__BUILD_BLAST_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 64)
|
|
__BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 64)
|
|
@@ -405,12 +466,122 @@ __BUILD_BLAST_CACHE(s, scache, Index_Wri
|
|
__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 128)
|
|
|
|
__BUILD_BLAST_CACHE(inv_d, dcache, Index_Writeback_Inv_D, Hit_Invalidate_D, 16)
|
|
+#ifndef CONFIG_JZRISC
|
|
__BUILD_BLAST_CACHE(inv_d, dcache, Index_Writeback_Inv_D, Hit_Invalidate_D, 32)
|
|
+#endif
|
|
__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 16)
|
|
__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 32)
|
|
__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 64)
|
|
__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 128)
|
|
|
|
+#ifdef CONFIG_JZRISC
|
|
+
|
|
+static inline void blast_dcache32(void)
|
|
+{
|
|
+ unsigned long start = INDEX_BASE;
|
|
+ unsigned long end = start + current_cpu_data.dcache.waysize;
|
|
+ unsigned long ws_inc = 1UL << current_cpu_data.dcache.waybit;
|
|
+ unsigned long ws_end = current_cpu_data.dcache.ways <<
|
|
+ current_cpu_data.dcache.waybit;
|
|
+ unsigned long ws, addr;
|
|
+
|
|
+ for (ws = 0; ws < ws_end; ws += ws_inc)
|
|
+ for (addr = start; addr < end; addr += 0x400)
|
|
+ cache32_unroll32(addr|ws,Index_Writeback_Inv_D);
|
|
+
|
|
+ SYNC_WB();
|
|
+}
|
|
+
|
|
+static inline void blast_dcache32_page(unsigned long page)
|
|
+{
|
|
+ unsigned long start = page;
|
|
+ unsigned long end = page + PAGE_SIZE;
|
|
+
|
|
+ do {
|
|
+ cache32_unroll32(start,Hit_Writeback_Inv_D);
|
|
+ start += 0x400;
|
|
+ } while (start < end);
|
|
+
|
|
+ SYNC_WB();
|
|
+}
|
|
+
|
|
+static inline void blast_dcache32_page_indexed(unsigned long page)
|
|
+{
|
|
+ unsigned long indexmask = current_cpu_data.dcache.waysize - 1;
|
|
+ unsigned long start = INDEX_BASE + (page & indexmask);
|
|
+ unsigned long end = start + PAGE_SIZE;
|
|
+ unsigned long ws_inc = 1UL << current_cpu_data.dcache.waybit;
|
|
+ unsigned long ws_end = current_cpu_data.dcache.ways <<
|
|
+ current_cpu_data.dcache.waybit;
|
|
+ unsigned long ws, addr;
|
|
+
|
|
+ for (ws = 0; ws < ws_end; ws += ws_inc)
|
|
+ for (addr = start; addr < end; addr += 0x400)
|
|
+ cache32_unroll32(addr|ws,Index_Writeback_Inv_D);
|
|
+
|
|
+ SYNC_WB();
|
|
+}
|
|
+
|
|
+static inline void blast_icache32(void)
|
|
+{
|
|
+ unsigned long start = INDEX_BASE;
|
|
+ unsigned long end = start + current_cpu_data.icache.waysize;
|
|
+ unsigned long ws_inc = 1UL << current_cpu_data.icache.waybit;
|
|
+ unsigned long ws_end = current_cpu_data.icache.ways <<
|
|
+ current_cpu_data.icache.waybit;
|
|
+ unsigned long ws, addr;
|
|
+
|
|
+ K0_TO_K1();
|
|
+
|
|
+ for (ws = 0; ws < ws_end; ws += ws_inc)
|
|
+ for (addr = start; addr < end; addr += 0x400)
|
|
+ cache32_unroll32(addr|ws,Index_Invalidate_I);
|
|
+
|
|
+ INVALIDATE_BTB();
|
|
+
|
|
+ K1_TO_K0();
|
|
+}
|
|
+
|
|
+static inline void blast_icache32_page(unsigned long page)
|
|
+{
|
|
+ unsigned long start = page;
|
|
+ unsigned long end = page + PAGE_SIZE;
|
|
+
|
|
+ K0_TO_K1();
|
|
+
|
|
+ do {
|
|
+ cache32_unroll32(start,Hit_Invalidate_I);
|
|
+ start += 0x400;
|
|
+ } while (start < end);
|
|
+
|
|
+ INVALIDATE_BTB();
|
|
+
|
|
+ K1_TO_K0();
|
|
+}
|
|
+
|
|
+static inline void blast_icache32_page_indexed(unsigned long page)
|
|
+{
|
|
+ unsigned long indexmask = current_cpu_data.icache.waysize - 1;
|
|
+ unsigned long start = INDEX_BASE + (page & indexmask);
|
|
+ unsigned long end = start + PAGE_SIZE;
|
|
+ unsigned long ws_inc = 1UL << current_cpu_data.icache.waybit;
|
|
+ unsigned long ws_end = current_cpu_data.icache.ways <<
|
|
+ current_cpu_data.icache.waybit;
|
|
+ unsigned long ws, addr;
|
|
+
|
|
+ K0_TO_K1();
|
|
+
|
|
+ for (ws = 0; ws < ws_end; ws += ws_inc)
|
|
+ for (addr = start; addr < end; addr += 0x400)
|
|
+ cache32_unroll32(addr|ws,Index_Invalidate_I);
|
|
+
|
|
+ INVALIDATE_BTB();
|
|
+
|
|
+ K1_TO_K0();
|
|
+}
|
|
+
|
|
+#endif /* CONFIG_JZRISC */
|
|
+
|
|
/* build blast_xxx_range, protected_blast_xxx_range */
|
|
#define __BUILD_BLAST_CACHE_RANGE(pfx, desc, hitop, prot) \
|
|
static inline void prot##blast_##pfx##cache##_range(unsigned long start, \
|
|
@@ -432,13 +603,73 @@ static inline void prot##blast_##pfx##ca
|
|
__##pfx##flush_epilogue \
|
|
}
|
|
|
|
+#ifndef CONFIG_JZRISC
|
|
__BUILD_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D, protected_)
|
|
+#endif
|
|
__BUILD_BLAST_CACHE_RANGE(s, scache, Hit_Writeback_Inv_SD, protected_)
|
|
+#ifndef CONFIG_JZRISC
|
|
__BUILD_BLAST_CACHE_RANGE(i, icache, Hit_Invalidate_I, protected_)
|
|
__BUILD_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D, )
|
|
+#endif
|
|
__BUILD_BLAST_CACHE_RANGE(s, scache, Hit_Writeback_Inv_SD, )
|
|
/* blast_inv_dcache_range */
|
|
__BUILD_BLAST_CACHE_RANGE(inv_d, dcache, Hit_Invalidate_D, )
|
|
__BUILD_BLAST_CACHE_RANGE(inv_s, scache, Hit_Invalidate_SD, )
|
|
|
|
+#ifdef CONFIG_JZRISC
|
|
+
|
|
+static inline void protected_blast_dcache_range(unsigned long start,
|
|
+ unsigned long end)
|
|
+{
|
|
+ unsigned long lsize = cpu_dcache_line_size();
|
|
+ unsigned long addr = start & ~(lsize - 1);
|
|
+ unsigned long aend = (end - 1) & ~(lsize - 1);
|
|
+
|
|
+ while (1) {
|
|
+ protected_cache_op(Hit_Writeback_Inv_D, addr);
|
|
+ if (addr == aend)
|
|
+ break;
|
|
+ addr += lsize;
|
|
+ }
|
|
+ SYNC_WB();
|
|
+}
|
|
+
|
|
+static inline void protected_blast_icache_range(unsigned long start,
|
|
+ unsigned long end)
|
|
+{
|
|
+ unsigned long lsize = cpu_icache_line_size();
|
|
+ unsigned long addr = start & ~(lsize - 1);
|
|
+ unsigned long aend = (end - 1) & ~(lsize - 1);
|
|
+
|
|
+ K0_TO_K1();
|
|
+
|
|
+ while (1) {
|
|
+ protected_cache_op(Hit_Invalidate_I, addr);
|
|
+ if (addr == aend)
|
|
+ break;
|
|
+ addr += lsize;
|
|
+ }
|
|
+ INVALIDATE_BTB();
|
|
+
|
|
+ K1_TO_K0();
|
|
+}
|
|
+
|
|
+static inline void blast_dcache_range(unsigned long start,
|
|
+ unsigned long end)
|
|
+{
|
|
+ unsigned long lsize = cpu_dcache_line_size();
|
|
+ unsigned long addr = start & ~(lsize - 1);
|
|
+ unsigned long aend = (end - 1) & ~(lsize - 1);
|
|
+
|
|
+ while (1) {
|
|
+ cache_op(Hit_Writeback_Inv_D, addr);
|
|
+ if (addr == aend)
|
|
+ break;
|
|
+ addr += lsize;
|
|
+ }
|
|
+ SYNC_WB();
|
|
+}
|
|
+
|
|
+#endif /* CONFIG_JZRISC */
|
|
+
|
|
#endif /* _ASM_R4KCACHE_H */
|
|
--- a/arch/mips/kernel/cpu-probe.c
|
|
+++ b/arch/mips/kernel/cpu-probe.c
|
|
@@ -160,6 +160,7 @@ void __init check_wait(void)
|
|
case CPU_BCM6348:
|
|
case CPU_BCM6358:
|
|
case CPU_CAVIUM_OCTEON:
|
|
+ case CPU_JZRISC:
|
|
cpu_wait = r4k_wait;
|
|
break;
|
|
|
|
@@ -902,6 +903,21 @@ static inline void cpu_probe_cavium(stru
|
|
}
|
|
}
|
|
|
|
+static inline void cpu_probe_ingenic(struct cpuinfo_mips *c, unsigned int cpu)
|
|
+{
|
|
+ decode_configs(c);
|
|
+ c->options &= ~MIPS_CPU_COUNTER; /* JZRISC does not implement the CP0 counter. */
|
|
+ switch (c->processor_id & 0xff00) {
|
|
+ case PRID_IMP_JZRISC:
|
|
+ c->cputype = CPU_JZRISC;
|
|
+ __cpu_name[cpu] = "Ingenic JZRISC";
|
|
+ break;
|
|
+ default:
|
|
+ panic("Unknown Ingenic Processor ID!");
|
|
+ break;
|
|
+ }
|
|
+}
|
|
+
|
|
const char *__cpu_name[NR_CPUS];
|
|
|
|
__cpuinit void cpu_probe(void)
|
|
@@ -939,6 +955,9 @@ __cpuinit void cpu_probe(void)
|
|
case PRID_COMP_CAVIUM:
|
|
cpu_probe_cavium(c, cpu);
|
|
break;
|
|
+ case PRID_COMP_INGENIC:
|
|
+ cpu_probe_ingenic(c, cpu);
|
|
+ break;
|
|
}
|
|
|
|
BUG_ON(!__cpu_name[cpu]);
|
|
--- a/arch/mips/mm/tlbex.c
|
|
+++ b/arch/mips/mm/tlbex.c
|
|
@@ -389,6 +389,11 @@ static void __cpuinit build_tlb_write_en
|
|
tlbw(p);
|
|
break;
|
|
|
|
+ case CPU_JZRISC:
|
|
+ tlbw(p);
|
|
+ uasm_i_nop(p);
|
|
+ break;
|
|
+
|
|
default:
|
|
panic("No TLB refill handler yet (CPU type: %d)",
|
|
current_cpu_data.cputype);
|