brcm47xx: remove support for kernel 3.2

SVN-Revision: 31771

1 files changed, 0 insertions, 367 deletions

diff --git a/target/linux/brcm47xx/patches-3.2/150-cpu_fixes.patch b/target/linux/brcm47xx/patches-3.2/150-cpu_fixes.patch
deleted file mode 100644
index 576f0a7e0e..0000000000
--- a/target/linux/brcm47xx/patches-3.2/150-cpu_fixes.patch
+++ /dev/null
@@ -1,367 +0,0 @@
---- a/arch/mips/include/asm/r4kcache.h
-+++ b/arch/mips/include/asm/r4kcache.h
-@@ -17,6 +17,20 @@
- #include <asm/cpu-features.h>
- #include <asm/mipsmtregs.h>
- 
-+#ifdef CONFIG_BCM47XX
-+#include <asm/paccess.h>
-+#include <linux/ssb/ssb.h>
-+#define BCM4710_DUMMY_RREG() ((void) *((u8 *) KSEG1ADDR(SSB_ENUM_BASE)))
-+
-+#define BCM4710_FILL_TLB(addr) (*(volatile unsigned long *)(addr))
-+#define BCM4710_PROTECTED_FILL_TLB(addr) ({ unsigned long x; get_dbe(x, (volatile unsigned long *)(addr)); })
-+#else
-+#define BCM4710_DUMMY_RREG()
-+
-+#define BCM4710_FILL_TLB(addr)
-+#define BCM4710_PROTECTED_FILL_TLB(addr)
-+#endif
-+
- /*
-  * This macro return a properly sign-extended address suitable as base address
-  * for indexed cache operations.  Two issues here:
-@@ -150,6 +164,7 @@ static inline void flush_icache_line_ind
- static inline void flush_dcache_line_indexed(unsigned long addr)
- {
- 	__dflush_prologue
-+	BCM4710_DUMMY_RREG();
- 	cache_op(Index_Writeback_Inv_D, addr);
- 	__dflush_epilogue
- }
-@@ -169,6 +184,7 @@ static inline void flush_icache_line(uns
- static inline void flush_dcache_line(unsigned long addr)
- {
- 	__dflush_prologue
-+	BCM4710_DUMMY_RREG();
- 	cache_op(Hit_Writeback_Inv_D, addr);
- 	__dflush_epilogue
- }
-@@ -176,6 +192,7 @@ static inline void flush_dcache_line(uns
- static inline void invalidate_dcache_line(unsigned long addr)
- {
- 	__dflush_prologue
-+	BCM4710_DUMMY_RREG();
- 	cache_op(Hit_Invalidate_D, addr);
- 	__dflush_epilogue
- }
-@@ -208,6 +225,7 @@ static inline void flush_scache_line(uns
-  */
- static inline void protected_flush_icache_line(unsigned long addr)
- {
-+	BCM4710_DUMMY_RREG();
- 	protected_cache_op(Hit_Invalidate_I, addr);
- }
- 
-@@ -219,6 +237,7 @@ static inline void protected_flush_icach
-  */
- static inline void protected_writeback_dcache_line(unsigned long addr)
- {
-+	BCM4710_DUMMY_RREG();
- 	protected_cache_op(Hit_Writeback_Inv_D, addr);
- }
- 
-@@ -339,8 +358,52 @@ static inline void invalidate_tcache_pag
- 		: "r" (base),						\
- 		  "i" (op));
- 
-+static inline void blast_dcache(void)
-+{
-+	unsigned long start = KSEG0;
-+	unsigned long dcache_size = current_cpu_data.dcache.waysize * current_cpu_data.dcache.ways;
-+	unsigned long end = (start + dcache_size);
-+
-+	do {
-+		BCM4710_DUMMY_RREG();
-+		cache_op(Index_Writeback_Inv_D, start);
-+		start += current_cpu_data.dcache.linesz;
-+	} while(start < end);
-+}
-+
-+static inline void blast_dcache_page(unsigned long page)
-+{
-+	unsigned long start = page;
-+	unsigned long end = start + PAGE_SIZE;
-+
-+	BCM4710_FILL_TLB(start);
-+	do {
-+		BCM4710_DUMMY_RREG();
-+		cache_op(Hit_Writeback_Inv_D, start);
-+		start += current_cpu_data.dcache.linesz;
-+	} while(start < end);
-+}
-+
-+static inline void blast_dcache_page_indexed(unsigned long page)
-+{
-+	unsigned long start = page;
-+	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) {
-+		start = page + ws;
-+		for (addr = start; addr < end; addr += current_cpu_data.dcache.linesz) {
-+			BCM4710_DUMMY_RREG();
-+			cache_op(Index_Writeback_Inv_D, addr);
-+		}
-+	}
-+}
-+
-+
- /* build blast_xxx, blast_xxx_page, blast_xxx_page_indexed */
--#define __BUILD_BLAST_CACHE(pfx, desc, indexop, hitop, lsize) \
-+#define __BUILD_BLAST_CACHE(pfx, desc, indexop, hitop, lsize, war) \
- static inline void blast_##pfx##cache##lsize(void)			\
- {									\
- 	unsigned long start = INDEX_BASE;				\
-@@ -352,6 +415,7 @@ static inline void blast_##pfx##cache##l
- 									\
- 	__##pfx##flush_prologue						\
- 									\
-+	war								\
- 	for (ws = 0; ws < ws_end; ws += ws_inc)				\
- 		for (addr = start; addr < end; addr += lsize * 32)	\
- 			cache##lsize##_unroll32(addr|ws, indexop);	\
-@@ -366,6 +430,7 @@ static inline void blast_##pfx##cache##l
- 									\
- 	__##pfx##flush_prologue						\
- 									\
-+	war								\
- 	do {								\
- 		cache##lsize##_unroll32(start, hitop);			\
- 		start += lsize * 32;					\
-@@ -384,6 +449,8 @@ static inline void blast_##pfx##cache##l
- 	                       current_cpu_data.desc.waybit;		\
- 	unsigned long ws, addr;						\
- 									\
-+	war								\
-+									\
- 	__##pfx##flush_prologue						\
- 									\
- 	for (ws = 0; ws < ws_end; ws += ws_inc)				\
-@@ -393,36 +460,38 @@ static inline void blast_##pfx##cache##l
- 	__##pfx##flush_epilogue						\
- }
- 
--__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)
--__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)
--__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)
--__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 64)
--__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)
--__BUILD_BLAST_CACHE(inv_d, dcache, Index_Writeback_Inv_D, Hit_Invalidate_D, 32)
--__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)
-+__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, BCM4710_FILL_TLB(start);)
-+__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 16, )
-+__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, BCM4710_FILL_TLB(start);)
-+__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, BCM4710_FILL_TLB(start);)
-+__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 64, )
-+__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, )
-+__BUILD_BLAST_CACHE(inv_d, dcache, Index_Writeback_Inv_D, Hit_Invalidate_D, 32, )
-+__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, )
- 
- /* build blast_xxx_range, protected_blast_xxx_range */
--#define __BUILD_BLAST_CACHE_RANGE(pfx, desc, hitop, prot) \
-+#define __BUILD_BLAST_CACHE_RANGE(pfx, desc, hitop, prot, war, war2) \
- static inline void prot##blast_##pfx##cache##_range(unsigned long start, \
- 						    unsigned long end)	\
- {									\
- 	unsigned long lsize = cpu_##desc##_line_size();			\
- 	unsigned long addr = start & ~(lsize - 1);			\
- 	unsigned long aend = (end - 1) & ~(lsize - 1);			\
-+	war								\
- 									\
- 	__##pfx##flush_prologue						\
- 									\
- 	while (1) {							\
-+		war2						\
- 		prot##cache_op(hitop, addr);				\
- 		if (addr == aend)					\
- 			break;						\
-@@ -432,13 +501,13 @@ static inline void prot##blast_##pfx##ca
- 	__##pfx##flush_epilogue						\
- }
- 
--__BUILD_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D, protected_)
--__BUILD_BLAST_CACHE_RANGE(s, scache, Hit_Writeback_Inv_SD, protected_)
--__BUILD_BLAST_CACHE_RANGE(i, icache, Hit_Invalidate_I, protected_)
--__BUILD_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D, )
--__BUILD_BLAST_CACHE_RANGE(s, scache, Hit_Writeback_Inv_SD, )
-+__BUILD_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D, protected_, BCM4710_PROTECTED_FILL_TLB(addr); BCM4710_PROTECTED_FILL_TLB(aend);, BCM4710_DUMMY_RREG();)
-+__BUILD_BLAST_CACHE_RANGE(s, scache, Hit_Writeback_Inv_SD, protected_,, )
-+__BUILD_BLAST_CACHE_RANGE(i, icache, Hit_Invalidate_I, protected_,, )
-+__BUILD_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D,, BCM4710_FILL_TLB(addr); BCM4710_FILL_TLB(aend);, BCM4710_DUMMY_RREG();)
-+__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, )
-+__BUILD_BLAST_CACHE_RANGE(inv_d, dcache, Hit_Invalidate_D,,,BCM4710_DUMMY_RREG();)
-+__BUILD_BLAST_CACHE_RANGE(inv_s, scache, Hit_Invalidate_SD,,, )
- 
- #endif /* _ASM_R4KCACHE_H */
---- a/arch/mips/include/asm/stackframe.h
-+++ b/arch/mips/include/asm/stackframe.h
-@@ -449,6 +449,10 @@
- 		.macro	RESTORE_SP_AND_RET
- 		LONG_L	sp, PT_R29(sp)
- 		.set	mips3
-+#ifdef CONFIG_BCM47XX
-+		nop
-+		nop
-+#endif
- 		eret
- 		.set	mips0
- 		.endm
---- a/arch/mips/kernel/genex.S
-+++ b/arch/mips/kernel/genex.S
-@@ -52,6 +52,10 @@ NESTED(except_vec1_generic, 0, sp)
- NESTED(except_vec3_generic, 0, sp)
- 	.set	push
- 	.set	noat
-+#ifdef CONFIG_BCM47XX
-+	nop
-+	nop
-+#endif
- #if R5432_CP0_INTERRUPT_WAR
- 	mfc0	k0, CP0_INDEX
- #endif
---- a/arch/mips/mm/c-r4k.c
-+++ b/arch/mips/mm/c-r4k.c
-@@ -35,6 +35,9 @@
- #include <asm/cacheflush.h> /* for run_uncached() */
- 
- 
-+/* For enabling BCM4710 cache workarounds */
-+int bcm4710 = 0;
-+
- /*
-  * Special Variant of smp_call_function for use by cache functions:
-  *
-@@ -111,6 +114,9 @@ static void __cpuinit r4k_blast_dcache_p
- {
- 	unsigned long  dc_lsize = cpu_dcache_line_size();
- 
-+	if (bcm4710)
-+		r4k_blast_dcache_page = blast_dcache_page;
-+	else
- 	if (dc_lsize == 0)
- 		r4k_blast_dcache_page = (void *)cache_noop;
- 	else if (dc_lsize == 16)
-@@ -127,6 +133,9 @@ static void __cpuinit r4k_blast_dcache_p
- {
- 	unsigned long dc_lsize = cpu_dcache_line_size();
- 
-+	if (bcm4710)
-+		r4k_blast_dcache_page_indexed = blast_dcache_page_indexed;
-+	else
- 	if (dc_lsize == 0)
- 		r4k_blast_dcache_page_indexed = (void *)cache_noop;
- 	else if (dc_lsize == 16)
-@@ -143,6 +152,9 @@ static void __cpuinit r4k_blast_dcache_s
- {
- 	unsigned long dc_lsize = cpu_dcache_line_size();
- 
-+	if (bcm4710)
-+		r4k_blast_dcache = blast_dcache;
-+	else
- 	if (dc_lsize == 0)
- 		r4k_blast_dcache = (void *)cache_noop;
- 	else if (dc_lsize == 16)
-@@ -683,6 +695,8 @@ static void local_r4k_flush_cache_sigtra
- 	unsigned long addr = (unsigned long) arg;
- 
- 	R4600_HIT_CACHEOP_WAR_IMPL;
-+	BCM4710_PROTECTED_FILL_TLB(addr);
-+	BCM4710_PROTECTED_FILL_TLB(addr + 4);
- 	if (dc_lsize)
- 		protected_writeback_dcache_line(addr & ~(dc_lsize - 1));
- 	if (!cpu_icache_snoops_remote_store && scache_size)
-@@ -1346,6 +1360,17 @@ static void __cpuinit coherency_setup(vo
- 	 * silly idea of putting something else there ...
- 	 */
- 	switch (current_cpu_type()) {
-+	case CPU_BMIPS3300:
-+		{
-+			u32 cm;
-+			cm = read_c0_diag();
-+			/* Enable icache */
-+			cm |= (1 << 31);
-+			/* Enable dcache */
-+			cm |= (1 << 30);
-+			write_c0_diag(cm);
-+		}
-+		break;
- 	case CPU_R4000PC:
- 	case CPU_R4000SC:
- 	case CPU_R4000MC:
-@@ -1402,6 +1427,15 @@ void __cpuinit r4k_cache_init(void)
- 		break;
- 	}
- 
-+	/* Check if special workarounds are required */
-+#ifdef CONFIG_BCM47XX
-+	if (current_cpu_data.cputype == CPU_BMIPS32 && (current_cpu_data.processor_id & 0xff) == 0) {
-+		printk("Enabling BCM4710A0 cache workarounds.\n");
-+		bcm4710 = 1;
-+	} else
-+#endif
-+		bcm4710 = 0;
-+
- 	probe_pcache();
- 	setup_scache();
- 
-@@ -1462,5 +1496,13 @@ void __cpuinit r4k_cache_init(void)
- #if !defined(CONFIG_MIPS_CMP)
- 	local_r4k___flush_cache_all(NULL);
- #endif
-+#ifdef CONFIG_BCM47XX
-+	{
-+		static void (*_coherency_setup)(void);
-+		_coherency_setup = (void (*)(void)) KSEG1ADDR(coherency_setup);
-+		_coherency_setup();
-+	}
-+#else
- 	coherency_setup();
-+#endif
- }
---- a/arch/mips/mm/tlbex.c
-+++ b/arch/mips/mm/tlbex.c
-@@ -1264,6 +1264,9 @@ static void __cpuinit build_r4000_tlb_re
- 			/* No need for uasm_i_nop */
- 		}
- 
-+#ifdef CONFIG_BCM47XX
-+		uasm_i_nop(&p);
-+#endif
- #ifdef CONFIG_64BIT
- 		build_get_pmde64(&p, &l, &r, K0, K1); /* get pmd in K1 */
- #else
-@@ -1794,6 +1797,9 @@ build_r4000_tlbchange_handler_head(u32 *
- {
- 	struct work_registers wr = build_get_work_registers(p);
- 
-+#ifdef CONFIG_BCM47XX
-+	uasm_i_nop(p);
-+#endif
- #ifdef CONFIG_64BIT
- 	build_get_pmde64(p, l, r, wr.r1, wr.r2); /* get pmd in ptr */
- #else