xburst: remove support for old kernels

SVN-Revision: 31904

1 files changed, 0 insertions, 334 deletions

diff --git a/target/linux/xburst/patches-2.6.37/001-xburst-cache-quirks.patch b/target/linux/xburst/patches-2.6.37/001-xburst-cache-quirks.patch
deleted file mode 100644
index 2508947..0000000
--- a/target/linux/xburst/patches-2.6.37/001-xburst-cache-quirks.patch
+++ /dev/null
@@ -1,334 +0,0 @@
-From 765782d71760915300cba7ee0259a7c770c56d71 Mon Sep 17 00:00:00 2001
-From: Lars-Peter Clausen <lars@metafoo.de>
-Date: Sat, 24 Apr 2010 17:34:29 +0200
-Subject: [PATCH 01/23] JZ4740 cache quirks
-
----
- arch/mips/include/asm/r4kcache.h |  231 ++++++++++++++++++++++++++++++++++++++
- 1 files changed, 231 insertions(+), 0 deletions(-)
-
---- 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 */