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authorRafał Miłecki <zajec5@gmail.com>2015-12-18 07:25:13 +0000
committerRafał Miłecki <zajec5@gmail.com>2015-12-18 07:25:13 +0000
commit7caa9411e750279839ac0d253ecac778619412b5 (patch)
tree93ba95e6f438eb7f0b0b3a2d01cd0d3f387d24d6 /target/linux/brcm47xx/patches-4.4
parent4afe0fc2b2ce174f4e9e227e80064c1be77230ca (diff)
downloadupstream-7caa9411e750279839ac0d253ecac778619412b5.tar.gz
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brcm47xx: add kernel 4.4 support
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> SVN-Revision: 47930
Diffstat (limited to 'target/linux/brcm47xx/patches-4.4')
-rw-r--r--target/linux/brcm47xx/patches-4.4/159-cpu_fixes.patch391
-rw-r--r--target/linux/brcm47xx/patches-4.4/160-kmap_coherent.patch78
-rw-r--r--target/linux/brcm47xx/patches-4.4/209-b44-register-adm-switch.patch122
-rw-r--r--target/linux/brcm47xx/patches-4.4/210-b44_phy_fix.patch54
-rw-r--r--target/linux/brcm47xx/patches-4.4/280-activate_ssb_support_in_usb.patch25
-rw-r--r--target/linux/brcm47xx/patches-4.4/300-fork_cacheflush.patch21
-rw-r--r--target/linux/brcm47xx/patches-4.4/310-no_highpage.patch74
-rw-r--r--target/linux/brcm47xx/patches-4.4/320-MIPS-BCM47XX-Devices-database-update-for-4.x.patch223
-rw-r--r--target/linux/brcm47xx/patches-4.4/400-mtd-bcm47xxpart-get-nvram.patch34
-rw-r--r--target/linux/brcm47xx/patches-4.4/610-pci_ide_fix.patch41
-rw-r--r--target/linux/brcm47xx/patches-4.4/791-tg3-no-pci-sleep.patch17
-rw-r--r--target/linux/brcm47xx/patches-4.4/800-bcma-add-table-of-serial-flashes-with-smaller-blocks.patch73
-rw-r--r--target/linux/brcm47xx/patches-4.4/820-wgt634u-nvram-fix.patch293
-rw-r--r--target/linux/brcm47xx/patches-4.4/830-huawei_e970_support.patch101
-rw-r--r--target/linux/brcm47xx/patches-4.4/900-ssb-reject-PCI-writes-setting-CardBus-bridge-resourc.patch30
-rw-r--r--target/linux/brcm47xx/patches-4.4/901-Revert-bcma-switch-GPIO-portions-to-use-GPIOLIB_IRQC.patch233
-rw-r--r--target/linux/brcm47xx/patches-4.4/920-cache-wround.patch138
-rw-r--r--target/linux/brcm47xx/patches-4.4/940-bcm47xx-yenta.patch46
-rw-r--r--target/linux/brcm47xx/patches-4.4/976-ssb_increase_pci_delay.patch11
-rw-r--r--target/linux/brcm47xx/patches-4.4/999-wl_exports.patch22
20 files changed, 2027 insertions, 0 deletions
diff --git a/target/linux/brcm47xx/patches-4.4/159-cpu_fixes.patch b/target/linux/brcm47xx/patches-4.4/159-cpu_fixes.patch
new file mode 100644
index 0000000000..50df04f1e0
--- /dev/null
+++ b/target/linux/brcm47xx/patches-4.4/159-cpu_fixes.patch
@@ -0,0 +1,391 @@
+--- a/arch/mips/include/asm/r4kcache.h
++++ b/arch/mips/include/asm/r4kcache.h
+@@ -25,6 +25,20 @@
+ extern void (*r4k_blast_dcache)(void);
+ extern void (*r4k_blast_icache)(void);
+
++#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:
+@@ -98,6 +112,7 @@ 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
+ }
+@@ -125,6 +140,7 @@ 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
+ }
+@@ -132,6 +148,7 @@ 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
+ }
+@@ -187,6 +204,7 @@ static inline void protected_flush_icach
+ #ifdef CONFIG_EVA
+ protected_cachee_op(Hit_Invalidate_I, addr);
+ #else
++ BCM4710_DUMMY_RREG();
+ protected_cache_op(Hit_Invalidate_I, addr);
+ #endif
+ break;
+@@ -201,6 +219,7 @@ static inline void protected_flush_icach
+ */
+ static inline void protected_writeback_dcache_line(unsigned long addr)
+ {
++ BCM4710_DUMMY_RREG();
+ #ifdef CONFIG_EVA
+ protected_cachee_op(Hit_Writeback_Inv_D, addr);
+ #else
+@@ -554,8 +573,51 @@ 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, extra) \
++#define __BUILD_BLAST_CACHE(pfx, desc, indexop, hitop, lsize, extra, war) \
+ static inline void extra##blast_##pfx##cache##lsize(void) \
+ { \
+ unsigned long start = INDEX_BASE; \
+@@ -567,6 +629,7 @@ static inline void extra##blast_##pfx##c
+ \
+ __##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); \
+@@ -581,6 +644,7 @@ static inline void extra##blast_##pfx##c
+ \
+ __##pfx##flush_prologue \
+ \
++ war \
+ do { \
+ cache##lsize##_unroll32(start, hitop); \
+ start += lsize * 32; \
+@@ -599,6 +663,8 @@ static inline void extra##blast_##pfx##c
+ current_cpu_data.desc.waybit; \
+ unsigned long ws, addr; \
+ \
++ war \
++ \
+ __##pfx##flush_prologue \
+ \
+ for (ws = 0; ws < ws_end; ws += ws_inc) \
+@@ -608,26 +674,26 @@ static inline void extra##blast_##pfx##c
+ __##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(i, icache, Index_Invalidate_I, Hit_Invalidate_I_Loongson2, 32, loongson2_)
+-__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(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 128, )
+-__BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 128, )
+-__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(i, icache, Index_Invalidate_I, Hit_Invalidate_I_Loongson2, 32, loongson2_, 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(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 128, , )
++__BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 128, , )
++__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, , )
+
+ #define __BUILD_BLAST_USER_CACHE(pfx, desc, indexop, hitop, lsize) \
+ static inline void blast_##pfx##cache##lsize##_user_page(unsigned long page) \
+@@ -656,17 +722,19 @@ __BUILD_BLAST_USER_CACHE(d, dcache, Inde
+ __BUILD_BLAST_USER_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 64)
+
+ /* build blast_xxx_range, protected_blast_xxx_range */
+-#define __BUILD_BLAST_CACHE_RANGE(pfx, desc, hitop, prot, extra) \
++#define __BUILD_BLAST_CACHE_RANGE(pfx, desc, hitop, prot, extra, war, war2) \
+ static inline void prot##extra##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; \
+@@ -678,8 +746,8 @@ static inline void prot##extra##blast_##
+
+ #ifndef CONFIG_EVA
+
+-__BUILD_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D, protected_, )
+-__BUILD_BLAST_CACHE_RANGE(i, icache, Hit_Invalidate_I, protected_, )
++__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(i, icache, Hit_Invalidate_I, protected_, , , )
+
+ #else
+
+@@ -716,14 +784,14 @@ __BUILD_PROT_BLAST_CACHE_RANGE(d, dcache
+ __BUILD_PROT_BLAST_CACHE_RANGE(i, icache, Hit_Invalidate_I)
+
+ #endif
+-__BUILD_BLAST_CACHE_RANGE(s, scache, Hit_Writeback_Inv_SD, protected_, )
++__BUILD_BLAST_CACHE_RANGE(s, scache, Hit_Writeback_Inv_SD, protected_, , , )
+ __BUILD_BLAST_CACHE_RANGE(i, icache, Hit_Invalidate_I_Loongson2, \
+- protected_, loongson2_)
+-__BUILD_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D, , )
+-__BUILD_BLAST_CACHE_RANGE(i, icache, Hit_Invalidate_I, , )
+-__BUILD_BLAST_CACHE_RANGE(s, scache, Hit_Writeback_Inv_SD, , )
++ protected_, loongson2_, , )
++__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(i, icache, Hit_Invalidate_I, , , , )
++__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
+@@ -358,6 +358,10 @@
+ .macro RESTORE_SP_AND_RET
+ LONG_L sp, PT_R29(sp)
+ .set arch=r4000
++#ifdef CONFIG_BCM47XX
++ nop
++ nop
++#endif
+ eret
+ .set mips0
+ .endm
+--- a/arch/mips/kernel/genex.S
++++ b/arch/mips/kernel/genex.S
+@@ -32,6 +32,10 @@
+ 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
+@@ -39,6 +39,9 @@
+ #include <asm/dma-coherence.h>
+ #include <asm/mips-cm.h>
+
++/* For enabling BCM4710 cache workarounds */
++int bcm4710 = 0;
++
+ /*
+ * Special Variant of smp_call_function for use by cache functions:
+ *
+@@ -157,6 +160,9 @@ static void r4k_blast_dcache_user_page_s
+ {
+ 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_user_page = (void *)cache_noop;
+ else if (dc_lsize == 16)
+@@ -175,6 +181,9 @@ static void r4k_blast_dcache_page_indexe
+ {
+ 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)
+@@ -194,6 +203,9 @@ static void r4k_blast_dcache_setup(void)
+ {
+ 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)
+@@ -793,6 +805,8 @@ 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)
+@@ -1602,6 +1616,17 @@ static void coherency_setup(void)
+ * 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:
+@@ -1648,6 +1673,15 @@ void r4k_cache_init(void)
+ extern void build_copy_page(void);
+ struct cpuinfo_mips *c = &current_cpu_data;
+
++ /* 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();
+
+@@ -1717,7 +1751,15 @@ void r4k_cache_init(void)
+ */
+ local_r4k___flush_cache_all(NULL);
+
++#ifdef CONFIG_BCM47XX
++ {
++ static void (*_coherency_setup)(void);
++ _coherency_setup = (void (*)(void)) KSEG1ADDR(coherency_setup);
++ _coherency_setup();
++ }
++#else
+ coherency_setup();
++#endif
+ board_cache_error_setup = r4k_cache_error_setup;
+
+ /*
+--- a/arch/mips/mm/tlbex.c
++++ b/arch/mips/mm/tlbex.c
+@@ -1281,6 +1281,9 @@ static void build_r4000_tlb_refill_handl
+ /* 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
+@@ -1868,6 +1871,9 @@ 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
diff --git a/target/linux/brcm47xx/patches-4.4/160-kmap_coherent.patch b/target/linux/brcm47xx/patches-4.4/160-kmap_coherent.patch
new file mode 100644
index 0000000000..3d65fdfd62
--- /dev/null
+++ b/target/linux/brcm47xx/patches-4.4/160-kmap_coherent.patch
@@ -0,0 +1,78 @@
+From: Jeff Hansen <jhansen@cardaccess-inc.com>
+Subject: [PATCH] kmap_coherent
+
+On ASUS WL-500gP there are some "Data bus error"s when executing simple
+commands liks "ps" or "cat /proc/1/cmdline".
+
+This fixes OpenWrt ticket #1485: https://dev.openwrt.org/ticket/1485
+---
+--- a/arch/mips/include/asm/cpu-features.h
++++ b/arch/mips/include/asm/cpu-features.h
+@@ -160,6 +160,9 @@
+ #ifndef cpu_has_local_ebase
+ #define cpu_has_local_ebase 1
+ #endif
++#ifndef cpu_use_kmap_coherent
++#define cpu_use_kmap_coherent 1
++#endif
+
+ /*
+ * I-Cache snoops remote store. This only matters on SMP. Some multiprocessors
+--- a/arch/mips/include/asm/mach-bcm47xx/cpu-feature-overrides.h
++++ b/arch/mips/include/asm/mach-bcm47xx/cpu-feature-overrides.h
+@@ -79,4 +79,6 @@
+ #define cpu_scache_line_size() 0
+ #define cpu_has_vz 0
+
++#define cpu_use_kmap_coherent 0
++
+ #endif /* __ASM_MACH_BCM47XX_CPU_FEATURE_OVERRIDES_H */
+--- a/arch/mips/mm/c-r4k.c
++++ b/arch/mips/mm/c-r4k.c
+@@ -600,7 +600,7 @@ static inline void local_r4k_flush_cache
+ */
+ map_coherent = (cpu_has_dc_aliases &&
+ page_mapped(page) && !Page_dcache_dirty(page));
+- if (map_coherent)
++ if (map_coherent && cpu_use_kmap_coherent)
+ vaddr = kmap_coherent(page, addr);
+ else
+ vaddr = kmap_atomic(page);
+@@ -625,7 +625,7 @@ static inline void local_r4k_flush_cache
+ }
+
+ if (vaddr) {
+- if (map_coherent)
++ if (map_coherent && cpu_use_kmap_coherent)
+ kunmap_coherent();
+ else
+ kunmap_atomic(vaddr);
+--- a/arch/mips/mm/init.c
++++ b/arch/mips/mm/init.c
+@@ -164,7 +164,7 @@ void copy_user_highpage(struct page *to,
+ void *vfrom, *vto;
+
+ vto = kmap_atomic(to);
+- if (cpu_has_dc_aliases &&
++ if (cpu_has_dc_aliases && cpu_use_kmap_coherent &&
+ page_mapped(from) && !Page_dcache_dirty(from)) {
+ vfrom = kmap_coherent(from, vaddr);
+ copy_page(vto, vfrom);
+@@ -186,7 +186,7 @@ void copy_to_user_page(struct vm_area_st
+ struct page *page, unsigned long vaddr, void *dst, const void *src,
+ unsigned long len)
+ {
+- if (cpu_has_dc_aliases &&
++ if (cpu_has_dc_aliases && cpu_use_kmap_coherent &&
+ page_mapped(page) && !Page_dcache_dirty(page)) {
+ void *vto = kmap_coherent(page, vaddr) + (vaddr & ~PAGE_MASK);
+ memcpy(vto, src, len);
+@@ -204,7 +204,7 @@ void copy_from_user_page(struct vm_area_
+ struct page *page, unsigned long vaddr, void *dst, const void *src,
+ unsigned long len)
+ {
+- if (cpu_has_dc_aliases &&
++ if (cpu_has_dc_aliases && cpu_use_kmap_coherent &&
+ page_mapped(page) && !Page_dcache_dirty(page)) {
+ void *vfrom = kmap_coherent(page, vaddr) + (vaddr & ~PAGE_MASK);
+ memcpy(dst, vfrom, len);
diff --git a/target/linux/brcm47xx/patches-4.4/209-b44-register-adm-switch.patch b/target/linux/brcm47xx/patches-4.4/209-b44-register-adm-switch.patch
new file mode 100644
index 0000000000..115b6aea79
--- /dev/null
+++ b/target/linux/brcm47xx/patches-4.4/209-b44-register-adm-switch.patch
@@ -0,0 +1,122 @@
+From b36f694256f41bc71571f467646d015dda128d14 Mon Sep 17 00:00:00 2001
+From: Hauke Mehrtens <hauke@hauke-m.de>
+Date: Sat, 9 Nov 2013 17:03:59 +0100
+Subject: [PATCH 210/210] b44: register adm switch
+
+---
+ drivers/net/ethernet/broadcom/b44.c | 57 +++++++++++++++++++++++++++++++++++
+ drivers/net/ethernet/broadcom/b44.h | 3 ++
+ 2 files changed, 60 insertions(+)
+
+--- a/drivers/net/ethernet/broadcom/b44.c
++++ b/drivers/net/ethernet/broadcom/b44.c
+@@ -31,6 +31,8 @@
+ #include <linux/ssb/ssb.h>
+ #include <linux/slab.h>
+ #include <linux/phy.h>
++#include <linux/platform_device.h>
++#include <linux/platform_data/adm6996-gpio.h>
+
+ #include <asm/uaccess.h>
+ #include <asm/io.h>
+@@ -2240,6 +2242,70 @@ static void b44_adjust_link(struct net_d
+ }
+ }
+
++#ifdef CONFIG_BCM47XX
++static int b44_register_adm_switch(struct b44 *bp)
++{
++ int gpio;
++ struct platform_device *pdev;
++ struct adm6996_gpio_platform_data adm_data = {0};
++ struct platform_device_info info = {0};
++
++ adm_data.model = ADM6996L;
++ gpio = bcm47xx_nvram_gpio_pin("adm_eecs");
++ if (gpio >= 0)
++ adm_data.eecs = gpio;
++ else
++ adm_data.eecs = 2;
++
++ gpio = bcm47xx_nvram_gpio_pin("adm_eesk");
++ if (gpio >= 0)
++ adm_data.eesk = gpio;
++ else
++ adm_data.eesk = 3;
++
++ gpio = bcm47xx_nvram_gpio_pin("adm_eedi");
++ if (gpio >= 0)
++ adm_data.eedi = gpio;
++ else
++ adm_data.eedi = 4;
++
++ gpio = bcm47xx_nvram_gpio_pin("adm_rc");
++ if (gpio >= 0)
++ adm_data.eerc = gpio;
++ else
++ adm_data.eerc = 5;
++
++ info.parent = bp->sdev->dev;
++ info.name = "adm6996_gpio";
++ info.id = -1;
++ info.data = &adm_data;
++ info.size_data = sizeof(adm_data);
++
++ if (!bp->adm_switch) {
++ pdev = platform_device_register_full(&info);
++ if (IS_ERR(pdev))
++ return PTR_ERR(pdev);
++
++ bp->adm_switch = pdev;
++ }
++ return 0;
++}
++static void b44_unregister_adm_switch(struct b44 *bp)
++{
++ if (bp->adm_switch)
++ platform_device_unregister(bp->adm_switch);
++}
++#else
++static int b44_register_adm_switch(struct b44 *bp)
++{
++ return 0;
++}
++static void b44_unregister_adm_switch(struct b44 *bp)
++{
++
++}
++#endif /* CONFIG_BCM47XX */
++
+ static int b44_register_phy_one(struct b44 *bp)
+ {
+ struct mii_bus *mii_bus;
+@@ -2283,6 +2349,9 @@ static int b44_register_phy_one(struct b
+ if (!bp->mii_bus->phy_map[bp->phy_addr] &&
+ (sprom->boardflags_lo & (B44_BOARDFLAG_ROBO | B44_BOARDFLAG_ADM))) {
+
++ if (sprom->boardflags_lo & B44_BOARDFLAG_ADM)
++ b44_register_adm_switch(bp);
++
+ dev_info(sdev->dev,
+ "could not find PHY at %i, use fixed one\n",
+ bp->phy_addr);
+@@ -2479,6 +2548,7 @@ static void b44_remove_one(struct ssb_de
+ unregister_netdev(dev);
+ if (bp->flags & B44_FLAG_EXTERNAL_PHY)
+ b44_unregister_phy_one(bp);
++ b44_unregister_adm_switch(bp);
+ ssb_device_disable(sdev, 0);
+ ssb_bus_may_powerdown(sdev->bus);
+ netif_napi_del(&bp->napi);
+--- a/drivers/net/ethernet/broadcom/b44.h
++++ b/drivers/net/ethernet/broadcom/b44.h
+@@ -408,6 +408,9 @@ struct b44 {
+ struct mii_bus *mii_bus;
+ int old_link;
+ struct mii_if_info mii_if;
++
++ /* platform device for associated switch */
++ struct platform_device *adm_switch;
+ };
+
+ #endif /* _B44_H */
diff --git a/target/linux/brcm47xx/patches-4.4/210-b44_phy_fix.patch b/target/linux/brcm47xx/patches-4.4/210-b44_phy_fix.patch
new file mode 100644
index 0000000000..04f6832169
--- /dev/null
+++ b/target/linux/brcm47xx/patches-4.4/210-b44_phy_fix.patch
@@ -0,0 +1,54 @@
+--- a/drivers/net/ethernet/broadcom/b44.c
++++ b/drivers/net/ethernet/broadcom/b44.c
+@@ -431,10 +431,34 @@ static void b44_wap54g10_workaround(stru
+ error:
+ pr_warn("PHY: cannot reset MII transceiver isolate bit\n");
+ }
++
++static void b44_bcm47xx_workarounds(struct b44 *bp)
++{
++ char buf[20];
++ struct ssb_device *sdev = bp->sdev;
++
++ /* Toshiba WRC-1000, Siemens SE505 v1, Askey RT-210W, RT-220W */
++ if (sdev->bus->sprom.board_num == 100) {
++ bp->phy_addr = B44_PHY_ADDR_NO_LOCAL_PHY;
++ } else {
++ /* WL-HDD */
++ if (bcm47xx_nvram_getenv("hardware_version", buf, sizeof(buf)) >= 0 &&
++ !strncmp(buf, "WL300-", strlen("WL300-"))) {
++ if (sdev->bus->sprom.et0phyaddr == 0 &&
++ sdev->bus->sprom.et1phyaddr == 1)
++ bp->phy_addr = B44_PHY_ADDR_NO_LOCAL_PHY;
++ }
++ }
++ return;
++}
+ #else
+ static inline void b44_wap54g10_workaround(struct b44 *bp)
+ {
+ }
++
++static inline void b44_bcm47xx_workarounds(struct b44 *bp)
++{
++}
+ #endif
+
+ static int b44_setup_phy(struct b44 *bp)
+@@ -443,6 +467,7 @@ static int b44_setup_phy(struct b44 *bp)
+ int err;
+
+ b44_wap54g10_workaround(bp);
++ b44_bcm47xx_workarounds(bp);
+
+ if (bp->flags & B44_FLAG_EXTERNAL_PHY)
+ return 0;
+@@ -2170,6 +2195,8 @@ static int b44_get_invariants(struct b44
+ * valid PHY address. */
+ bp->phy_addr &= 0x1F;
+
++ b44_bcm47xx_workarounds(bp);
++
+ memcpy(bp->dev->dev_addr, addr, ETH_ALEN);
+
+ if (!is_valid_ether_addr(&bp->dev->dev_addr[0])){
diff --git a/target/linux/brcm47xx/patches-4.4/280-activate_ssb_support_in_usb.patch b/target/linux/brcm47xx/patches-4.4/280-activate_ssb_support_in_usb.patch
new file mode 100644
index 0000000000..ae6a72de7a
--- /dev/null
+++ b/target/linux/brcm47xx/patches-4.4/280-activate_ssb_support_in_usb.patch
@@ -0,0 +1,25 @@
+This prevents the options from being delete with make kernel_oldconfig.
+---
+ drivers/ssb/Kconfig | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/drivers/bcma/Kconfig
++++ b/drivers/bcma/Kconfig
+@@ -33,6 +33,7 @@ config BCMA_HOST_PCI
+ config BCMA_HOST_SOC
+ bool "Support for BCMA in a SoC"
+ depends on BCMA
++ select USB_HCD_BCMA if USB_EHCI_HCD || USB_OHCI_HCD
+ help
+ Host interface for a Broadcom AIX bus directly mapped into
+ the memory. This only works with the Broadcom SoCs from the
+--- a/drivers/ssb/Kconfig
++++ b/drivers/ssb/Kconfig
+@@ -156,6 +156,7 @@ config SSB_SFLASH
+ config SSB_EMBEDDED
+ bool
+ depends on SSB_DRIVER_MIPS && SSB_PCICORE_HOSTMODE
++ select USB_HCD_SSB if USB_EHCI_HCD || USB_OHCI_HCD
+ default y
+
+ config SSB_DRIVER_EXTIF
diff --git a/target/linux/brcm47xx/patches-4.4/300-fork_cacheflush.patch b/target/linux/brcm47xx/patches-4.4/300-fork_cacheflush.patch
new file mode 100644
index 0000000000..daa2c1adf0
--- /dev/null
+++ b/target/linux/brcm47xx/patches-4.4/300-fork_cacheflush.patch
@@ -0,0 +1,21 @@
+From: Wolfram Joost <dbox2@frokaschwei.de>
+Subject: [PATCH] fork_cacheflush
+
+On ASUS WL-500gP there are many unexpected "Segmentation fault"s that
+seem to be caused by a kernel. They can be avoided by:
+1) Disabling highpage
+2) Using flush_cache_mm in flush_cache_dup_mm
+
+For details see OpenWrt ticket #2035 https://dev.openwrt.org/ticket/2035
+---
+--- a/arch/mips/include/asm/cacheflush.h
++++ b/arch/mips/include/asm/cacheflush.h
+@@ -46,7 +46,7 @@
+ extern void (*flush_cache_all)(void);
+ extern void (*__flush_cache_all)(void);
+ extern void (*flush_cache_mm)(struct mm_struct *mm);
+-#define flush_cache_dup_mm(mm) do { (void) (mm); } while (0)
++#define flush_cache_dup_mm(mm) flush_cache_mm(mm)
+ extern void (*flush_cache_range)(struct vm_area_struct *vma,
+ unsigned long start, unsigned long end);
+ extern void (*flush_cache_page)(struct vm_area_struct *vma, unsigned long page, unsigned long pfn);
diff --git a/target/linux/brcm47xx/patches-4.4/310-no_highpage.patch b/target/linux/brcm47xx/patches-4.4/310-no_highpage.patch
new file mode 100644
index 0000000000..bb67417f90
--- /dev/null
+++ b/target/linux/brcm47xx/patches-4.4/310-no_highpage.patch
@@ -0,0 +1,74 @@
+From: Jeff Hansen <jhansen@cardaccess-inc.com>
+Subject: [PATCH] no highpage
+
+On ASUS WL-500gP there are many unexpected "Segmentation fault"s that
+seem to be caused by a kernel. They can be avoided by:
+1) Disabling highpage
+2) Using flush_cache_mm in flush_cache_dup_mm
+
+For details see OpenWrt ticket #2035 https://dev.openwrt.org/ticket/2035
+---
+--- a/arch/mips/include/asm/page.h
++++ b/arch/mips/include/asm/page.h
+@@ -71,6 +71,7 @@ static inline unsigned int page_size_ftl
+ #endif /* CONFIG_MIPS_HUGE_TLB_SUPPORT */
+
+ #include <linux/pfn.h>
++#include <asm/cpu-features.h>
+
+ extern void build_clear_page(void);
+ extern void build_copy_page(void);
+@@ -105,11 +106,16 @@ static inline void clear_user_page(void
+ flush_data_cache_page((unsigned long)addr);
+ }
+
+-struct vm_area_struct;
+-extern void copy_user_highpage(struct page *to, struct page *from,
+- unsigned long vaddr, struct vm_area_struct *vma);
++static inline void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
++ struct page *to)
++{
++ extern void (*flush_data_cache_page)(unsigned long addr);
+
+-#define __HAVE_ARCH_COPY_USER_HIGHPAGE
++ copy_page(vto, vfrom);
++ if (!cpu_has_ic_fills_f_dc ||
++ pages_do_alias((unsigned long)vto, vaddr & PAGE_MASK))
++ flush_data_cache_page((unsigned long)vto);
++}
+
+ /*
+ * These are used to make use of C type-checking..
+--- a/arch/mips/mm/init.c
++++ b/arch/mips/mm/init.c
+@@ -158,30 +158,6 @@ void kunmap_coherent(void)
+ preempt_enable();
+ }
+
+-void copy_user_highpage(struct page *to, struct page *from,
+- unsigned long vaddr, struct vm_area_struct *vma)
+-{
+- void *vfrom, *vto;
+-
+- vto = kmap_atomic(to);
+- if (cpu_has_dc_aliases && cpu_use_kmap_coherent &&
+- page_mapped(from) && !Page_dcache_dirty(from)) {
+- vfrom = kmap_coherent(from, vaddr);
+- copy_page(vto, vfrom);
+- kunmap_coherent();
+- } else {
+- vfrom = kmap_atomic(from);
+- copy_page(vto, vfrom);
+- kunmap_atomic(vfrom);
+- }
+- if ((!cpu_has_ic_fills_f_dc) ||
+- pages_do_alias((unsigned long)vto, vaddr & PAGE_MASK))
+- flush_data_cache_page((unsigned long)vto);
+- kunmap_atomic(vto);
+- /* Make sure this page is cleared on other CPU's too before using it */
+- smp_wmb();
+-}
+-
+ void copy_to_user_page(struct vm_area_struct *vma,
+ struct page *page, unsigned long vaddr, void *dst, const void *src,
+ unsigned long len)
diff --git a/target/linux/brcm47xx/patches-4.4/320-MIPS-BCM47XX-Devices-database-update-for-4.x.patch b/target/linux/brcm47xx/patches-4.4/320-MIPS-BCM47XX-Devices-database-update-for-4.x.patch
new file mode 100644
index 0000000000..68214c8452
--- /dev/null
+++ b/target/linux/brcm47xx/patches-4.4/320-MIPS-BCM47XX-Devices-database-update-for-4.x.patch
@@ -0,0 +1,223 @@
+--- a/arch/mips/bcm47xx/board.c
++++ b/arch/mips/bcm47xx/board.c
+@@ -140,6 +140,7 @@ struct bcm47xx_board_type_list2 bcm47xx_
+ {{BCM47XX_BOARD_LINKSYS_WRT300NV11, "Linksys WRT300N V1.1"}, "WRT300N", "1.1"},
+ {{BCM47XX_BOARD_LINKSYS_WRT310NV1, "Linksys WRT310N V1"}, "WRT310N", "1.0"},
+ {{BCM47XX_BOARD_LINKSYS_WRT310NV2, "Linksys WRT310N V2"}, "WRT310N", "2.0"},
++ {{BCM47XX_BOARD_LINKSYS_WRT320N_V1, "Linksys WRT320N V1"}, "WRT320N", "1.0"},
+ {{BCM47XX_BOARD_LINKSYS_WRT54G3GV2, "Linksys WRT54G3GV2-VF"}, "WRT54G3GV2-VF", "1.0"},
+ {{BCM47XX_BOARD_LINKSYS_WRT610NV1, "Linksys WRT610N V1"}, "WRT610N", "1.0"},
+ {{BCM47XX_BOARD_LINKSYS_WRT610NV2, "Linksys WRT610N V2"}, "WRT610N", "2.0"},
+@@ -150,9 +151,12 @@ struct bcm47xx_board_type_list2 bcm47xx_
+ static const
+ struct bcm47xx_board_type_list1 bcm47xx_board_list_board_id[] __initconst = {
+ {{BCM47XX_BOARD_LUXUL_XWR_1750_V1, "Luxul XWR-1750 V1"}, "luxul_xwr1750_v1"},
++ {{BCM47XX_BOARD_NETGEAR_R6300_V1, "Netgear R6300 V1"}, "U12H218T00_NETGEAR"},
+ {{BCM47XX_BOARD_NETGEAR_WGR614V8, "Netgear WGR614 V8"}, "U12H072T00_NETGEAR"},
+ {{BCM47XX_BOARD_NETGEAR_WGR614V9, "Netgear WGR614 V9"}, "U12H094T00_NETGEAR"},
+ {{BCM47XX_BOARD_NETGEAR_WGR614_V10, "Netgear WGR614 V10"}, "U12H139T01_NETGEAR"},
++ {{BCM47XX_BOARD_NETGEAR_WN2500RP_V1, "Netgear WN2500RP V1"}, "U12H197T00_NETGEAR"},
++ {{BCM47XX_BOARD_NETGEAR_WN2500RP_V2, "Netgear WN2500RP V2"}, "U12H294T00_NETGEAR"},
+ {{BCM47XX_BOARD_NETGEAR_WNDR3300, "Netgear WNDR3300"}, "U12H093T00_NETGEAR"},
+ {{BCM47XX_BOARD_NETGEAR_WNDR3400V1, "Netgear WNDR3400 V1"}, "U12H155T00_NETGEAR"},
+ {{BCM47XX_BOARD_NETGEAR_WNDR3400V2, "Netgear WNDR3400 V2"}, "U12H187T00_NETGEAR"},
+@@ -162,6 +166,7 @@ struct bcm47xx_board_type_list1 bcm47xx_
+ {{BCM47XX_BOARD_NETGEAR_WNDR4000, "Netgear WNDR4000"}, "U12H181T00_NETGEAR"},
+ {{BCM47XX_BOARD_NETGEAR_WNDR4500V1, "Netgear WNDR4500 V1"}, "U12H189T00_NETGEAR"},
+ {{BCM47XX_BOARD_NETGEAR_WNDR4500V2, "Netgear WNDR4500 V2"}, "U12H224T00_NETGEAR"},
++ {{BCM47XX_BOARD_NETGEAR_WNR1000_V3, "Netgear WNR1000 V3"}, "U12H139T50_NETGEAR"},
+ {{BCM47XX_BOARD_NETGEAR_WNR2000, "Netgear WNR2000"}, "U12H114T00_NETGEAR"},
+ {{BCM47XX_BOARD_NETGEAR_WNR3500L, "Netgear WNR3500L"}, "U12H136T99_NETGEAR"},
+ {{BCM47XX_BOARD_NETGEAR_WNR3500U, "Netgear WNR3500U"}, "U12H136T00_NETGEAR"},
+--- a/arch/mips/bcm47xx/buttons.c
++++ b/arch/mips/bcm47xx/buttons.c
+@@ -20,6 +20,12 @@
+ /* Asus */
+
+ static const struct gpio_keys_button
++bcm47xx_buttons_asus_rtn10u[] __initconst = {
++ BCM47XX_GPIO_KEY(20, KEY_WPS_BUTTON),
++ BCM47XX_GPIO_KEY(21, KEY_RESTART),
++};
++
++static const struct gpio_keys_button
+ bcm47xx_buttons_asus_rtn12[] __initconst = {
+ BCM47XX_GPIO_KEY(0, KEY_WPS_BUTTON),
+ BCM47XX_GPIO_KEY(1, KEY_RESTART),
+@@ -270,6 +276,18 @@ bcm47xx_buttons_linksys_wrt310nv1[] __in
+ };
+
+ static const struct gpio_keys_button
++bcm47xx_buttons_linksys_wrt310n_v2[] __initconst = {
++ BCM47XX_GPIO_KEY(5, KEY_WPS_BUTTON),
++ BCM47XX_GPIO_KEY(6, KEY_RESTART),
++};
++
++static const struct gpio_keys_button
++bcm47xx_buttons_linksys_wrt320n_v1[] __initconst = {
++ BCM47XX_GPIO_KEY(5, KEY_WPS_BUTTON),
++ BCM47XX_GPIO_KEY(8, KEY_RESTART),
++};
++
++static const struct gpio_keys_button
+ bcm47xx_buttons_linksys_wrt54g3gv2[] __initconst = {
+ BCM47XX_GPIO_KEY(5, KEY_WIMAX),
+ BCM47XX_GPIO_KEY(6, KEY_RESTART),
+@@ -333,6 +351,17 @@ bcm47xx_buttons_motorola_wr850gv2v3[] __
+ /* Netgear */
+
+ static const struct gpio_keys_button
++bcm47xx_buttons_netgear_r6300_v1[] __initconst = {
++ BCM47XX_GPIO_KEY(6, KEY_RESTART),
++};
++
++static const struct gpio_keys_button
++bcm47xx_buttons_netgear_wn2500rp_v1[] __initconst = {
++ BCM47XX_GPIO_KEY(12, KEY_RESTART),
++ BCM47XX_GPIO_KEY(31, KEY_WPS_BUTTON),
++};
++
++static const struct gpio_keys_button
+ bcm47xx_buttons_netgear_wndr3400v1[] __initconst = {
+ BCM47XX_GPIO_KEY(4, KEY_RESTART),
+ BCM47XX_GPIO_KEY(6, KEY_WPS_BUTTON),
+@@ -360,6 +389,11 @@ bcm47xx_buttons_netgear_wndr4500v1[] __i
+ };
+
+ static const struct gpio_keys_button
++bcm47xx_buttons_netgear_wnr1000_v3[] __initconst = {
++ BCM47XX_GPIO_KEY(3, KEY_RESTART),
++};
++
++static const struct gpio_keys_button
+ bcm47xx_buttons_netgear_wnr3500lv1[] __initconst = {
+ BCM47XX_GPIO_KEY(4, KEY_RESTART),
+ BCM47XX_GPIO_KEY(6, KEY_WPS_BUTTON),
+@@ -413,6 +447,9 @@ int __init bcm47xx_buttons_register(void
+ int err;
+
+ switch (board) {
++ case BCM47XX_BOARD_ASUS_RTN10U:
++ err = bcm47xx_copy_bdata(bcm47xx_buttons_asus_rtn10u);
++ break;
+ case BCM47XX_BOARD_ASUS_RTN12:
+ err = bcm47xx_copy_bdata(bcm47xx_buttons_asus_rtn12);
+ break;
+@@ -543,6 +580,12 @@ int __init bcm47xx_buttons_register(void
+ case BCM47XX_BOARD_LINKSYS_WRT310NV1:
+ err = bcm47xx_copy_bdata(bcm47xx_buttons_linksys_wrt310nv1);
+ break;
++ case BCM47XX_BOARD_LINKSYS_WRT310NV2:
++ err = bcm47xx_copy_bdata(bcm47xx_buttons_linksys_wrt310n_v2);
++ break;
++ case BCM47XX_BOARD_LINKSYS_WRT320N_V1:
++ err = bcm47xx_copy_bdata(bcm47xx_buttons_linksys_wrt320n_v1);
++ break;
+ case BCM47XX_BOARD_LINKSYS_WRT54G3GV2:
+ err = bcm47xx_copy_bdata(bcm47xx_buttons_linksys_wrt54g3gv2);
+ break;
+@@ -579,6 +622,12 @@ int __init bcm47xx_buttons_register(void
+ err = bcm47xx_copy_bdata(bcm47xx_buttons_motorola_wr850gv2v3);
+ break;
+
++ case BCM47XX_BOARD_NETGEAR_R6300_V1:
++ err = bcm47xx_copy_bdata(bcm47xx_buttons_netgear_r6300_v1);
++ break;
++ case BCM47XX_BOARD_NETGEAR_WN2500RP_V1:
++ err = bcm47xx_copy_bdata(bcm47xx_buttons_netgear_wn2500rp_v1);
++ break;
+ case BCM47XX_BOARD_NETGEAR_WNDR3400V1:
+ err = bcm47xx_copy_bdata(bcm47xx_buttons_netgear_wndr3400v1);
+ break;
+@@ -591,6 +640,9 @@ int __init bcm47xx_buttons_register(void
+ case BCM47XX_BOARD_NETGEAR_WNDR4500V1:
+ err = bcm47xx_copy_bdata(bcm47xx_buttons_netgear_wndr4500v1);
+ break;
++ case BCM47XX_BOARD_NETGEAR_WNR1000_V3:
++ err = bcm47xx_copy_bdata(bcm47xx_buttons_netgear_wnr1000_v3);
++ break;
+ case BCM47XX_BOARD_NETGEAR_WNR3500L:
+ err = bcm47xx_copy_bdata(bcm47xx_buttons_netgear_wnr3500lv1);
+ break;
+--- a/arch/mips/include/asm/mach-bcm47xx/bcm47xx_board.h
++++ b/arch/mips/include/asm/mach-bcm47xx/bcm47xx_board.h
+@@ -71,6 +71,7 @@ enum bcm47xx_board {
+ BCM47XX_BOARD_LINKSYS_WRT300NV11,
+ BCM47XX_BOARD_LINKSYS_WRT310NV1,
+ BCM47XX_BOARD_LINKSYS_WRT310NV2,
++ BCM47XX_BOARD_LINKSYS_WRT320N_V1,
+ BCM47XX_BOARD_LINKSYS_WRT54G3GV2,
+ BCM47XX_BOARD_LINKSYS_WRT54G_TYPE_0101,
+ BCM47XX_BOARD_LINKSYS_WRT54G_TYPE_0467,
+@@ -88,9 +89,12 @@ enum bcm47xx_board {
+ BCM47XX_BOARD_MOTOROLA_WR850GP,
+ BCM47XX_BOARD_MOTOROLA_WR850GV2V3,
+
++ BCM47XX_BOARD_NETGEAR_R6300_V1,
+ BCM47XX_BOARD_NETGEAR_WGR614V8,
+ BCM47XX_BOARD_NETGEAR_WGR614V9,
+ BCM47XX_BOARD_NETGEAR_WGR614_V10,
++ BCM47XX_BOARD_NETGEAR_WN2500RP_V1,
++ BCM47XX_BOARD_NETGEAR_WN2500RP_V2,
+ BCM47XX_BOARD_NETGEAR_WNDR3300,
+ BCM47XX_BOARD_NETGEAR_WNDR3400V1,
+ BCM47XX_BOARD_NETGEAR_WNDR3400V2,
+@@ -100,6 +104,7 @@ enum bcm47xx_board {
+ BCM47XX_BOARD_NETGEAR_WNDR4000,
+ BCM47XX_BOARD_NETGEAR_WNDR4500V1,
+ BCM47XX_BOARD_NETGEAR_WNDR4500V2,
++ BCM47XX_BOARD_NETGEAR_WNR1000_V3,
+ BCM47XX_BOARD_NETGEAR_WNR2000,
+ BCM47XX_BOARD_NETGEAR_WNR3500L,
+ BCM47XX_BOARD_NETGEAR_WNR3500U,
+--- a/arch/mips/bcm47xx/leds.c
++++ b/arch/mips/bcm47xx/leds.c
+@@ -29,6 +29,14 @@
+ /* Asus */
+
+ static const struct gpio_led
++bcm47xx_leds_asus_rtn10u[] __initconst = {
++ BCM47XX_GPIO_LED(5, "green", "wlan", 0, LEDS_GPIO_DEFSTATE_OFF),
++ BCM47XX_GPIO_LED(6, "green", "power", 1, LEDS_GPIO_DEFSTATE_ON),
++ BCM47XX_GPIO_LED(7, "green", "wps", 0, LEDS_GPIO_DEFSTATE_OFF),
++ BCM47XX_GPIO_LED(8, "green", "usb", 0, LEDS_GPIO_DEFSTATE_OFF),
++};
++
++static const struct gpio_led
+ bcm47xx_leds_asus_rtn12[] __initconst = {
+ BCM47XX_GPIO_LED(2, "unk", "power", 1, LEDS_GPIO_DEFSTATE_ON),
+ BCM47XX_GPIO_LED(7, "unk", "wlan", 0, LEDS_GPIO_DEFSTATE_OFF),
+@@ -313,6 +321,13 @@ bcm47xx_leds_linksys_wrt310nv1[] __initc
+ };
+
+ static const struct gpio_led
++bcm47xx_leds_linksys_wrt320n_v1[] __initconst = {
++ BCM47XX_GPIO_LED(1, "blue", "wlan", 1, LEDS_GPIO_DEFSTATE_OFF),
++ BCM47XX_GPIO_LED(2, "blue", "power", 0, LEDS_GPIO_DEFSTATE_ON),
++ BCM47XX_GPIO_LED(4, "amber", "wps", 1, LEDS_GPIO_DEFSTATE_OFF),
++};
++
++static const struct gpio_led
+ bcm47xx_leds_linksys_wrt54g_generic[] __initconst = {
+ BCM47XX_GPIO_LED(0, "unk", "dmz", 1, LEDS_GPIO_DEFSTATE_OFF),
+ BCM47XX_GPIO_LED(1, "unk", "power", 0, LEDS_GPIO_DEFSTATE_ON),
+@@ -478,6 +493,9 @@ void __init bcm47xx_leds_register(void)
+ enum bcm47xx_board board = bcm47xx_board_get();
+
+ switch (board) {
++ case BCM47XX_BOARD_ASUS_RTN10U:
++ bcm47xx_set_pdata(bcm47xx_leds_asus_rtn10u);
++ break;
+ case BCM47XX_BOARD_ASUS_RTN12:
+ bcm47xx_set_pdata(bcm47xx_leds_asus_rtn12);
+ break;
+@@ -611,6 +629,9 @@ void __init bcm47xx_leds_register(void)
+ case BCM47XX_BOARD_LINKSYS_WRT310NV1:
+ bcm47xx_set_pdata(bcm47xx_leds_linksys_wrt310nv1);
+ break;
++ case BCM47XX_BOARD_LINKSYS_WRT320N_V1:
++ bcm47xx_set_pdata(bcm47xx_leds_linksys_wrt320n_v1);
++ break;
+ case BCM47XX_BOARD_LINKSYS_WRT54G3GV2:
+ bcm47xx_set_pdata(bcm47xx_leds_linksys_wrt54g3gv2);
+ break;
diff --git a/target/linux/brcm47xx/patches-4.4/400-mtd-bcm47xxpart-get-nvram.patch b/target/linux/brcm47xx/patches-4.4/400-mtd-bcm47xxpart-get-nvram.patch
new file mode 100644
index 0000000000..de109e35f4
--- /dev/null
+++ b/target/linux/brcm47xx/patches-4.4/400-mtd-bcm47xxpart-get-nvram.patch
@@ -0,0 +1,34 @@
+--- a/drivers/mtd/bcm47xxpart.c
++++ b/drivers/mtd/bcm47xxpart.c
+@@ -100,6 +100,7 @@ static int bcm47xxpart_parse(struct mtd_
+ int last_trx_part = -1;
+ int possible_nvram_sizes[] = { 0x8000, 0xF000, 0x10000, };
+ int err;
++ bool found_nvram = false;
+
+ /*
+ * Some really old flashes (like AT45DB*) had smaller erasesize-s, but
+@@ -306,12 +307,23 @@ static int bcm47xxpart_parse(struct mtd_
+ if (buf[0] == NVRAM_HEADER) {
+ bcm47xxpart_add_part(&parts[curr_part++], "nvram",
+ master->size - blocksize, 0);
++ found_nvram = true;
+ break;
+ }
+ }
+
+ kfree(buf);
+
++ if (!found_nvram) {
++ pr_err("can not find a nvram partition reserve last block\n");
++ bcm47xxpart_add_part(&parts[curr_part++], "nvram_guess",
++ master->size - blocksize * 2, MTD_WRITEABLE);
++ for (i = 0; i < curr_part; i++) {
++ if (parts[i].size + parts[i].offset == master->size)
++ parts[i].offset -= blocksize * 2;
++ }
++ }
++
+ /*
+ * Assume that partitions end at the beginning of the one they are
+ * followed by.
diff --git a/target/linux/brcm47xx/patches-4.4/610-pci_ide_fix.patch b/target/linux/brcm47xx/patches-4.4/610-pci_ide_fix.patch
new file mode 100644
index 0000000000..c5a51add95
--- /dev/null
+++ b/target/linux/brcm47xx/patches-4.4/610-pci_ide_fix.patch
@@ -0,0 +1,41 @@
+From: b.sander
+Subject: [PATCH] pci: IDE fix
+
+These are standard probing messages when using pdc202xx_old:
+pdc202xx_old 0000:00:01.0: IDE controller (0x105a:0x0d30 rev 0x02)
+PCI: Enabling device 0000:00:01.0 (0004 -> 0007)
+PCI: Fixing up device 0000:00:01.0
+0000:00:01.0: (U)DMA Burst Bit DISABLED Primary PCI Mode Secondary PCI Mode.
+0000:00:01.0: FORCING BURST BIT 0x00->0x01 ACTIVE
+pdc202xx_old 0000:00:01.0: 100% native mode on irq 6
+
+With the default MAX_HWIFS value after above we get:
+ ide2: BM-DMA at 0x0400-0x0407
+ ide3: BM-DMA at 0x0408-0x040f
+Probing IDE interface ide2...
+hde: CF500, CFA DISK drive
+
+As you can see it's ide2 + ide3 and hde.
+
+With this patch applied we get:
+ ide0: BM-DMA at 0x0400-0x0407
+ ide1: BM-DMA at 0x0408-0x040f
+Probing IDE interface ide0...
+hda: CF500, CFA DISK drive
+
+This fixes OpenWrt ticket #7061: https://dev.openwrt.org/ticket/7061
+---
+--- a/include/linux/ide.h
++++ b/include/linux/ide.h
+@@ -204,7 +204,11 @@ static inline void ide_std_init_ports(st
+ hw->io_ports.ctl_addr = ctl_addr;
+ }
+
++#if defined CONFIG_BCM47XX
++# define MAX_HWIFS 2
++#else
+ #define MAX_HWIFS 10
++#endif
+
+ /*
+ * Now for the data we need to maintain per-drive: ide_drive_t
diff --git a/target/linux/brcm47xx/patches-4.4/791-tg3-no-pci-sleep.patch b/target/linux/brcm47xx/patches-4.4/791-tg3-no-pci-sleep.patch
new file mode 100644
index 0000000000..35a816d8c2
--- /dev/null
+++ b/target/linux/brcm47xx/patches-4.4/791-tg3-no-pci-sleep.patch
@@ -0,0 +1,17 @@
+When the Ethernet controller is powered down and someone wants to
+access the mdio bus like the witch driver (b53) the system crashed if
+PCI_D3hot was set before. This patch deactivates this power sawing mode
+when a switch driver is in use.
+
+--- a/drivers/net/ethernet/broadcom/tg3.c
++++ b/drivers/net/ethernet/broadcom/tg3.c
+@@ -4263,7 +4263,8 @@ static int tg3_power_down_prepare(struct
+ static void tg3_power_down(struct tg3 *tp)
+ {
+ pci_wake_from_d3(tp->pdev, tg3_flag(tp, WOL_ENABLE));
+- pci_set_power_state(tp->pdev, PCI_D3hot);
++ if (!tg3_flag(tp, ROBOSWITCH))
++ pci_set_power_state(tp->pdev, PCI_D3hot);
+ }
+
+ static void tg3_aux_stat_to_speed_duplex(struct tg3 *tp, u32 val, u16 *speed, u8 *duplex)
diff --git a/target/linux/brcm47xx/patches-4.4/800-bcma-add-table-of-serial-flashes-with-smaller-blocks.patch b/target/linux/brcm47xx/patches-4.4/800-bcma-add-table-of-serial-flashes-with-smaller-blocks.patch
new file mode 100644
index 0000000000..99d909bc03
--- /dev/null
+++ b/target/linux/brcm47xx/patches-4.4/800-bcma-add-table-of-serial-flashes-with-smaller-blocks.patch
@@ -0,0 +1,73 @@
+From 597715c61ae75a05ab3310a34ff3857a006f0f63 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
+Date: Thu, 20 Nov 2014 21:32:42 +0100
+Subject: [PATCH] bcma: add table of serial flashes with smaller blocks
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
+---
+ drivers/bcma/driver_chipcommon_sflash.c | 29 +++++++++++++++++++++++++++++
+ 1 file changed, 29 insertions(+)
+
+--- a/drivers/bcma/driver_chipcommon_sflash.c
++++ b/drivers/bcma/driver_chipcommon_sflash.c
+@@ -9,6 +9,7 @@
+
+ #include <linux/platform_device.h>
+ #include <linux/bcma/bcma.h>
++#include <bcm47xx_board.h>
+
+ static struct resource bcma_sflash_resource = {
+ .name = "bcma_sflash",
+@@ -41,6 +42,13 @@ static const struct bcma_sflash_tbl_e bc
+ { NULL },
+ };
+
++/* Some devices use smaller blocks (and have more of them) */
++static const struct bcma_sflash_tbl_e bcma_sflash_st_shrink_tbl[] = {
++ { "M25P16", 0x14, 0x1000, 512, },
++ { "M25P32", 0x15, 0x1000, 1024, },
++ { NULL },
++};
++
+ static const struct bcma_sflash_tbl_e bcma_sflash_sst_tbl[] = {
+ { "SST25WF512", 1, 0x1000, 16, },
+ { "SST25VF512", 0x48, 0x1000, 16, },
+@@ -84,6 +92,24 @@ static void bcma_sflash_cmd(struct bcma_
+ bcma_err(cc->core->bus, "SFLASH control command failed (timeout)!\n");
+ }
+
++const struct bcma_sflash_tbl_e *bcma_sflash_shrink_flash(u32 id)
++{
++ enum bcm47xx_board board = bcm47xx_board_get();
++ const struct bcma_sflash_tbl_e *e;
++
++ switch (board) {
++ case BCM47XX_BOARD_NETGEAR_WGR614_V10:
++ case BCM47XX_BOARD_NETGEAR_WNR1000_V3:
++ for (e = bcma_sflash_st_shrink_tbl; e->name; e++) {
++ if (e->id == id)
++ return e;
++ }
++ return NULL;
++ default:
++ return NULL;
++ }
++}
++
+ /* Initialize serial flash access */
+ int bcma_sflash_init(struct bcma_drv_cc *cc)
+ {
+@@ -114,6 +140,10 @@ int bcma_sflash_init(struct bcma_drv_cc
+ case 0x13:
+ return -ENOTSUPP;
+ default:
++ e = bcma_sflash_shrink_flash(id);
++ if (e)
++ break;
++
+ for (e = bcma_sflash_st_tbl; e->name; e++) {
+ if (e->id == id)
+ break;
diff --git a/target/linux/brcm47xx/patches-4.4/820-wgt634u-nvram-fix.patch b/target/linux/brcm47xx/patches-4.4/820-wgt634u-nvram-fix.patch
new file mode 100644
index 0000000000..6e10311d0c
--- /dev/null
+++ b/target/linux/brcm47xx/patches-4.4/820-wgt634u-nvram-fix.patch
@@ -0,0 +1,293 @@
+The Netgear wgt634u uses a different format for storing the
+configuration. This patch is needed to read out the correct
+configuration. The cfe_env.c file uses a different method way to read
+out the configuration than the in kernel cfe config reader.
+
+--- a/drivers/firmware/broadcom/Makefile
++++ b/drivers/firmware/broadcom/Makefile
+@@ -1 +1 @@
+-obj-$(CONFIG_BCM47XX_NVRAM) += bcm47xx_nvram.o
++obj-$(CONFIG_BCM47XX_NVRAM) += bcm47xx_nvram.o cfe_env.o
+--- /dev/null
++++ b/drivers/firmware/broadcom/cfe_env.c
+@@ -0,0 +1,228 @@
++/*
++ * CFE environment variable access
++ *
++ * Copyright 2001-2003, Broadcom Corporation
++ * Copyright 2006, Felix Fietkau <nbd@openwrt.org>
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License as published by the
++ * Free Software Foundation; either version 2 of the License, or (at your
++ * option) any later version.
++ */
++
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/string.h>
++#include <asm/io.h>
++#include <asm/uaccess.h>
++
++#define NVRAM_SIZE (0x1ff0)
++static char _nvdata[NVRAM_SIZE];
++static char _valuestr[256];
++
++/*
++ * TLV types. These codes are used in the "type-length-value"
++ * encoding of the items stored in the NVRAM device (flash or EEPROM)
++ *
++ * The layout of the flash/nvram is as follows:
++ *
++ * <type> <length> <data ...> <type> <length> <data ...> <type_end>
++ *
++ * The type code of "ENV_TLV_TYPE_END" marks the end of the list.
++ * The "length" field marks the length of the data section, not
++ * including the type and length fields.
++ *
++ * Environment variables are stored as follows:
++ *
++ * <type_env> <length> <flags> <name> = <value>
++ *
++ * If bit 0 (low bit) is set, the length is an 8-bit value.
++ * If bit 0 (low bit) is clear, the length is a 16-bit value
++ *
++ * Bit 7 set indicates "user" TLVs. In this case, bit 0 still
++ * indicates the size of the length field.
++ *
++ * Flags are from the constants below:
++ *
++ */
++#define ENV_LENGTH_16BITS 0x00 /* for low bit */
++#define ENV_LENGTH_8BITS 0x01
++
++#define ENV_TYPE_USER 0x80
++
++#define ENV_CODE_SYS(n,l) (((n)<<1)|(l))
++#define ENV_CODE_USER(n,l) ((((n)<<1)|(l)) | ENV_TYPE_USER)
++
++/*
++ * The actual TLV types we support
++ */
++
++#define ENV_TLV_TYPE_END 0x00
++#define ENV_TLV_TYPE_ENV ENV_CODE_SYS(0,ENV_LENGTH_8BITS)
++
++/*
++ * Environment variable flags
++ */
++
++#define ENV_FLG_NORMAL 0x00 /* normal read/write */
++#define ENV_FLG_BUILTIN 0x01 /* builtin - not stored in flash */
++#define ENV_FLG_READONLY 0x02 /* read-only - cannot be changed */
++
++#define ENV_FLG_MASK 0xFF /* mask of attributes we keep */
++#define ENV_FLG_ADMIN 0x100 /* lets us internally override permissions */
++
++
++/* *********************************************************************
++ * _nvram_read(buffer,offset,length)
++ *
++ * Read data from the NVRAM device
++ *
++ * Input parameters:
++ * buffer - destination buffer
++ * offset - offset of data to read
++ * length - number of bytes to read
++ *
++ * Return value:
++ * number of bytes read, or <0 if error occured
++ ********************************************************************* */
++static int
++_nvram_read(unsigned char *nv_buf, unsigned char *buffer, int offset, int length)
++{
++ int i;
++ if (offset > NVRAM_SIZE)
++ return -1;
++
++ for ( i = 0; i < length; i++) {
++ buffer[i] = ((volatile unsigned char*)nv_buf)[offset + i];
++ }
++ return length;
++}
++
++
++static char*
++_strnchr(const char *dest,int c,size_t cnt)
++{
++ while (*dest && (cnt > 0)) {
++ if (*dest == c) return (char *) dest;
++ dest++;
++ cnt--;
++ }
++ return NULL;
++}
++
++
++
++/*
++ * Core support API: Externally visible.
++ */
++
++/*
++ * Get the value of an NVRAM variable
++ * @param name name of variable to get
++ * @return value of variable or NULL if undefined
++ */
++
++char *cfe_env_get(unsigned char *nv_buf, const char *name)
++{
++ int size;
++ unsigned char *buffer;
++ unsigned char *ptr;
++ unsigned char *envval;
++ unsigned int reclen;
++ unsigned int rectype;
++ int offset;
++ int flg;
++
++ if (!strcmp(name, "nvram_type"))
++ return "cfe";
++
++ size = NVRAM_SIZE;
++ buffer = &_nvdata[0];
++
++ ptr = buffer;
++ offset = 0;
++
++ /* Read the record type and length */
++ if (_nvram_read(nv_buf, ptr,offset,1) != 1) {
++ goto error;
++ }
++
++ while ((*ptr != ENV_TLV_TYPE_END) && (size > 1)) {
++
++ /* Adjust pointer for TLV type */
++ rectype = *(ptr);
++ offset++;
++ size--;
++
++ /*
++ * Read the length. It can be either 1 or 2 bytes
++ * depending on the code
++ */
++ if (rectype & ENV_LENGTH_8BITS) {
++ /* Read the record type and length - 8 bits */
++ if (_nvram_read(nv_buf, ptr,offset,1) != 1) {
++ goto error;
++ }
++ reclen = *(ptr);
++ size--;
++ offset++;
++ }
++ else {
++ /* Read the record type and length - 16 bits, MSB first */
++ if (_nvram_read(nv_buf, ptr,offset,2) != 2) {
++ goto error;
++ }
++ reclen = (((unsigned int) *(ptr)) << 8) + (unsigned int) *(ptr+1);
++ size -= 2;
++ offset += 2;
++ }
++
++ if (reclen > size)
++ break; /* should not happen, bad NVRAM */
++
++ switch (rectype) {
++ case ENV_TLV_TYPE_ENV:
++ /* Read the TLV data */
++ if (_nvram_read(nv_buf, ptr,offset,reclen) != reclen)
++ goto error;
++ flg = *ptr++;
++ envval = (unsigned char *) _strnchr(ptr,'=',(reclen-1));
++ if (envval) {
++ *envval++ = '\0';
++ memcpy(_valuestr,envval,(reclen-1)-(envval-ptr));
++ _valuestr[(reclen-1)-(envval-ptr)] = '\0';
++#if 0
++ printk(KERN_INFO "NVRAM:%s=%s\n", ptr, _valuestr);
++#endif
++ if(!strcmp(ptr, name)){
++ return _valuestr;
++ }
++ if((strlen(ptr) > 1) && !strcmp(&ptr[1], name))
++ return _valuestr;
++ }
++ break;
++
++ default:
++ /* Unknown TLV type, skip it. */
++ break;
++ }
++
++ /*
++ * Advance to next TLV
++ */
++
++ size -= (int)reclen;
++ offset += reclen;
++
++ /* Read the next record type */
++ ptr = buffer;
++ if (_nvram_read(nv_buf, ptr,offset,1) != 1)
++ goto error;
++ }
++
++error:
++ return NULL;
++
++}
++
+--- a/drivers/firmware/broadcom/bcm47xx_nvram.c
++++ b/drivers/firmware/broadcom/bcm47xx_nvram.c
+@@ -37,6 +37,8 @@ struct nvram_header {
+ static char nvram_buf[NVRAM_SPACE];
+ static size_t nvram_len;
+ static const u32 nvram_sizes[] = {0x8000, 0xF000, 0x10000};
++static int cfe_env;
++extern char *cfe_env_get(char *nv_buf, const char *name);
+
+ static u32 find_nvram_size(void __iomem *end)
+ {
+@@ -66,6 +68,26 @@ static int nvram_find_and_copy(void __io
+ return -EEXIST;
+ }
+
++ cfe_env = 0;
++
++ /* XXX: hack for supporting the CFE environment stuff on WGT634U */
++ if (lim >= 8 * 1024 * 1024) {
++ src = (u32 *)(iobase + 8 * 1024 * 1024 - 0x2000);
++ dst = (u32 *)nvram_buf;
++
++ if ((*src & 0xff00ff) == 0x000001) {
++ printk("early_nvram_init: WGT634U NVRAM found.\n");
++
++ for (i = 0; i < 0x1ff0; i++) {
++ if (*src == 0xFFFFFFFF)
++ break;
++ *dst++ = *src++;
++ }
++ cfe_env = 1;
++ return 0;
++ }
++ }
++
+ /* TODO: when nvram is on nand flash check for bad blocks first. */
+ off = FLASH_MIN;
+ while (off <= lim) {
+@@ -180,6 +202,13 @@ int bcm47xx_nvram_getenv(const char *nam
+ if (!name)
+ return -EINVAL;
+
++ if (cfe_env) {
++ value = cfe_env_get(nvram_buf, name);
++ if (!value)
++ return -ENOENT;
++ return snprintf(val, val_len, "%s", value);
++ }
++
+ if (!nvram_len) {
+ err = nvram_init();
+ if (err)
diff --git a/target/linux/brcm47xx/patches-4.4/830-huawei_e970_support.patch b/target/linux/brcm47xx/patches-4.4/830-huawei_e970_support.patch
new file mode 100644
index 0000000000..f67c5dde1c
--- /dev/null
+++ b/target/linux/brcm47xx/patches-4.4/830-huawei_e970_support.patch
@@ -0,0 +1,101 @@
+--- a/arch/mips/bcm47xx/setup.c
++++ b/arch/mips/bcm47xx/setup.c
+@@ -36,6 +36,7 @@
+ #include <linux/ssb/ssb.h>
+ #include <linux/ssb/ssb_embedded.h>
+ #include <linux/bcma/bcma_soc.h>
++#include <linux/old_gpio_wdt.h>
+ #include <asm/bootinfo.h>
+ #include <asm/idle.h>
+ #include <asm/prom.h>
+@@ -262,6 +263,33 @@ static struct fixed_phy_status bcm47xx_f
+ .duplex = DUPLEX_FULL,
+ };
+
++static struct gpio_wdt_platform_data gpio_wdt_data;
++
++static struct platform_device gpio_wdt_device = {
++ .name = "gpio-wdt",
++ .id = 0,
++ .dev = {
++ .platform_data = &gpio_wdt_data,
++ },
++};
++
++static int __init bcm47xx_register_gpio_watchdog(void)
++{
++ enum bcm47xx_board board = bcm47xx_board_get();
++
++ switch (board) {
++ case BCM47XX_BOARD_HUAWEI_E970:
++ pr_info("bcm47xx: detected Huawei E970 or similar, starting early gpio_wdt timer\n");
++ gpio_wdt_data.gpio = 7;
++ gpio_wdt_data.interval = HZ;
++ gpio_wdt_data.first_interval = HZ / 5;
++ return platform_device_register(&gpio_wdt_device);
++ default:
++ /* Nothing to do */
++ return 0;
++ }
++}
++
+ static int __init bcm47xx_register_bus_complete(void)
+ {
+ switch (bcm47xx_bus_type) {
+@@ -281,6 +309,7 @@ static int __init bcm47xx_register_bus_c
+ bcm47xx_workarounds();
+
+ fixed_phy_add(PHY_POLL, 0, &bcm47xx_fixed_phy_status, -1);
++ bcm47xx_register_gpio_watchdog();
+ return 0;
+ }
+ device_initcall(bcm47xx_register_bus_complete);
+--- a/arch/mips/configs/bcm47xx_defconfig
++++ b/arch/mips/configs/bcm47xx_defconfig
+@@ -67,6 +67,7 @@ CONFIG_HW_RANDOM=y
+ CONFIG_GPIO_SYSFS=y
+ CONFIG_WATCHDOG=y
+ CONFIG_BCM47XX_WDT=y
++CONFIG_GPIO_WDT=y
+ CONFIG_SSB_DEBUG=y
+ CONFIG_SSB_DRIVER_GIGE=y
+ CONFIG_BCMA_DRIVER_GMAC_CMN=y
+--- a/drivers/ssb/embedded.c
++++ b/drivers/ssb/embedded.c
+@@ -34,11 +34,36 @@ int ssb_watchdog_timer_set(struct ssb_bu
+ }
+ EXPORT_SYMBOL(ssb_watchdog_timer_set);
+
++#ifdef CONFIG_BCM47XX
++#include <bcm47xx_board.h>
++
++static bool ssb_watchdog_supported(void)
++{
++ enum bcm47xx_board board = bcm47xx_board_get();
++
++ /* The Huawei E970 has a hardware watchdog using a GPIO */
++ switch (board) {
++ case BCM47XX_BOARD_HUAWEI_E970:
++ return false;
++ default:
++ return true;
++ }
++}
++#else
++static bool ssb_watchdog_supported(void)
++{
++ return true;
++}
++#endif
++
+ int ssb_watchdog_register(struct ssb_bus *bus)
+ {
+ struct bcm47xx_wdt wdt = {};
+ struct platform_device *pdev;
+
++ if (!ssb_watchdog_supported())
++ return 0;
++
+ if (ssb_chipco_available(&bus->chipco)) {
+ wdt.driver_data = &bus->chipco;
+ wdt.timer_set = ssb_chipco_watchdog_timer_set_wdt;
diff --git a/target/linux/brcm47xx/patches-4.4/900-ssb-reject-PCI-writes-setting-CardBus-bridge-resourc.patch b/target/linux/brcm47xx/patches-4.4/900-ssb-reject-PCI-writes-setting-CardBus-bridge-resourc.patch
new file mode 100644
index 0000000000..d7d2d7e59a
--- /dev/null
+++ b/target/linux/brcm47xx/patches-4.4/900-ssb-reject-PCI-writes-setting-CardBus-bridge-resourc.patch
@@ -0,0 +1,30 @@
+From 5c81397a0147ea59c778d1de14ef54e2268221f6 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
+Date: Wed, 8 Apr 2015 06:58:11 +0200
+Subject: [PATCH] ssb: reject PCI writes setting CardBus bridge resources
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+If SoC has a CardBus we can set resources of device at slot 1 only. It's
+impossigle to set bridge resources as it simply overwrites device 1
+configuration and usually results in Data bus error-s.
+
+Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
+---
+ drivers/ssb/driver_pcicore.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+--- a/drivers/ssb/driver_pcicore.c
++++ b/drivers/ssb/driver_pcicore.c
+@@ -164,6 +164,10 @@ static int ssb_extpci_write_config(struc
+ SSB_WARN_ON(!pc->hostmode);
+ if (unlikely(len != 1 && len != 2 && len != 4))
+ goto out;
++ /* CardBus SoCs allow configuring dev 1 resources only */
++ if (extpci_core->cardbusmode && dev != 1 &&
++ off >= PCI_BASE_ADDRESS_0 && off <= PCI_BASE_ADDRESS_5)
++ goto out;
+ addr = get_cfgspace_addr(pc, bus, dev, func, off);
+ if (unlikely(!addr))
+ goto out;
diff --git a/target/linux/brcm47xx/patches-4.4/901-Revert-bcma-switch-GPIO-portions-to-use-GPIOLIB_IRQC.patch b/target/linux/brcm47xx/patches-4.4/901-Revert-bcma-switch-GPIO-portions-to-use-GPIOLIB_IRQC.patch
new file mode 100644
index 0000000000..585d56aedf
--- /dev/null
+++ b/target/linux/brcm47xx/patches-4.4/901-Revert-bcma-switch-GPIO-portions-to-use-GPIOLIB_IRQC.patch
@@ -0,0 +1,233 @@
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
+Date: Fri, 18 Dec 2015 07:51:08 +0100
+Subject: [PATCH] Revert "bcma: switch GPIO portions to use GPIOLIB_IRQCHIP"
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This reverts commit 74f4e0cc61080f63f28e8d519bdf437957e64217.
+
+On BCM47XX (MIPS) bcma_bus_get_host_dev returns NULL which results in:
+[ 0.157054] missing gpiochip .dev parent pointer
+[ 0.157287] bcma: bus0: Error registering GPIO driver: -22
+
+Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
+---
+ drivers/bcma/Kconfig | 2 +-
+ drivers/bcma/driver_gpio.c | 92 +++++++++++++++++++----------
+ include/linux/bcma/bcma_driver_chipcommon.h | 1 +
+ 3 files changed, 64 insertions(+), 31 deletions(-)
+
+--- a/drivers/bcma/Kconfig
++++ b/drivers/bcma/Kconfig
+@@ -94,7 +94,7 @@ config BCMA_DRIVER_GMAC_CMN
+ config BCMA_DRIVER_GPIO
+ bool "BCMA GPIO driver"
+ depends on BCMA && GPIOLIB
+- select GPIOLIB_IRQCHIP if BCMA_HOST_SOC
++ select IRQ_DOMAIN if BCMA_HOST_SOC
+ help
+ Driver to provide access to the GPIO pins of the bcma bus.
+
+--- a/drivers/bcma/driver_gpio.c
++++ b/drivers/bcma/driver_gpio.c
+@@ -8,8 +8,10 @@
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+-#include <linux/gpio/driver.h>
++#include <linux/gpio.h>
++#include <linux/irq.h>
+ #include <linux/interrupt.h>
++#include <linux/irqdomain.h>
+ #include <linux/export.h>
+ #include <linux/bcma/bcma.h>
+
+@@ -77,11 +79,19 @@ static void bcma_gpio_free(struct gpio_c
+ }
+
+ #if IS_BUILTIN(CONFIG_BCM47XX) || IS_BUILTIN(CONFIG_ARCH_BCM_5301X)
++static int bcma_gpio_to_irq(struct gpio_chip *chip, unsigned gpio)
++{
++ struct bcma_drv_cc *cc = bcma_gpio_get_cc(chip);
++
++ if (cc->core->bus->hosttype == BCMA_HOSTTYPE_SOC)
++ return irq_find_mapping(cc->irq_domain, gpio);
++ else
++ return -EINVAL;
++}
+
+ static void bcma_gpio_irq_unmask(struct irq_data *d)
+ {
+- struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+- struct bcma_drv_cc *cc = bcma_gpio_get_cc(gc);
++ struct bcma_drv_cc *cc = irq_data_get_irq_chip_data(d);
+ int gpio = irqd_to_hwirq(d);
+ u32 val = bcma_chipco_gpio_in(cc, BIT(gpio));
+
+@@ -91,8 +101,7 @@ static void bcma_gpio_irq_unmask(struct
+
+ static void bcma_gpio_irq_mask(struct irq_data *d)
+ {
+- struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+- struct bcma_drv_cc *cc = bcma_gpio_get_cc(gc);
++ struct bcma_drv_cc *cc = irq_data_get_irq_chip_data(d);
+ int gpio = irqd_to_hwirq(d);
+
+ bcma_chipco_gpio_intmask(cc, BIT(gpio), 0);
+@@ -107,7 +116,6 @@ static struct irq_chip bcma_gpio_irq_chi
+ static irqreturn_t bcma_gpio_irq_handler(int irq, void *dev_id)
+ {
+ struct bcma_drv_cc *cc = dev_id;
+- struct gpio_chip *gc = &cc->gpio;
+ u32 val = bcma_cc_read32(cc, BCMA_CC_GPIOIN);
+ u32 mask = bcma_cc_read32(cc, BCMA_CC_GPIOIRQ);
+ u32 pol = bcma_cc_read32(cc, BCMA_CC_GPIOPOL);
+@@ -117,58 +125,81 @@ static irqreturn_t bcma_gpio_irq_handler
+ if (!irqs)
+ return IRQ_NONE;
+
+- for_each_set_bit(gpio, &irqs, gc->ngpio)
+- generic_handle_irq(irq_find_mapping(gc->irqdomain, gpio));
++ for_each_set_bit(gpio, &irqs, cc->gpio.ngpio)
++ generic_handle_irq(bcma_gpio_to_irq(&cc->gpio, gpio));
+ bcma_chipco_gpio_polarity(cc, irqs, val & irqs);
+
+ return IRQ_HANDLED;
+ }
+
+-static int bcma_gpio_irq_init(struct bcma_drv_cc *cc)
++static int bcma_gpio_irq_domain_init(struct bcma_drv_cc *cc)
+ {
+ struct gpio_chip *chip = &cc->gpio;
+- int hwirq, err;
++ int gpio, hwirq, err;
+
+ if (cc->core->bus->hosttype != BCMA_HOSTTYPE_SOC)
+ return 0;
+
++ cc->irq_domain = irq_domain_add_linear(NULL, chip->ngpio,
++ &irq_domain_simple_ops, cc);
++ if (!cc->irq_domain) {
++ err = -ENODEV;
++ goto err_irq_domain;
++ }
++ for (gpio = 0; gpio < chip->ngpio; gpio++) {
++ int irq = irq_create_mapping(cc->irq_domain, gpio);
++
++ irq_set_chip_data(irq, cc);
++ irq_set_chip_and_handler(irq, &bcma_gpio_irq_chip,
++ handle_simple_irq);
++ }
++
+ hwirq = bcma_core_irq(cc->core, 0);
+ err = request_irq(hwirq, bcma_gpio_irq_handler, IRQF_SHARED, "gpio",
+ cc);
+ if (err)
+- return err;
++ goto err_req_irq;
+
+ bcma_chipco_gpio_intmask(cc, ~0, 0);
+ bcma_cc_set32(cc, BCMA_CC_IRQMASK, BCMA_CC_IRQ_GPIO);
+
+- err = gpiochip_irqchip_add(chip,
+- &bcma_gpio_irq_chip,
+- 0,
+- handle_simple_irq,
+- IRQ_TYPE_NONE);
+- if (err) {
+- free_irq(hwirq, cc);
+- return err;
+- }
+-
+ return 0;
++
++err_req_irq:
++ for (gpio = 0; gpio < chip->ngpio; gpio++) {
++ int irq = irq_find_mapping(cc->irq_domain, gpio);
++
++ irq_dispose_mapping(irq);
++ }
++ irq_domain_remove(cc->irq_domain);
++err_irq_domain:
++ return err;
+ }
+
+-static void bcma_gpio_irq_exit(struct bcma_drv_cc *cc)
++static void bcma_gpio_irq_domain_exit(struct bcma_drv_cc *cc)
+ {
++ struct gpio_chip *chip = &cc->gpio;
++ int gpio;
++
+ if (cc->core->bus->hosttype != BCMA_HOSTTYPE_SOC)
+ return;
+
+ bcma_cc_mask32(cc, BCMA_CC_IRQMASK, ~BCMA_CC_IRQ_GPIO);
+ free_irq(bcma_core_irq(cc->core, 0), cc);
++ for (gpio = 0; gpio < chip->ngpio; gpio++) {
++ int irq = irq_find_mapping(cc->irq_domain, gpio);
++
++ irq_dispose_mapping(irq);
++ }
++ irq_domain_remove(cc->irq_domain);
+ }
+ #else
+-static int bcma_gpio_irq_init(struct bcma_drv_cc *cc)
++static int bcma_gpio_irq_domain_init(struct bcma_drv_cc *cc)
+ {
+ return 0;
+ }
+
+-static void bcma_gpio_irq_exit(struct bcma_drv_cc *cc)
++static void bcma_gpio_irq_domain_exit(struct bcma_drv_cc *cc)
+ {
+ }
+ #endif
+@@ -187,8 +218,9 @@ int bcma_gpio_init(struct bcma_drv_cc *c
+ chip->set = bcma_gpio_set_value;
+ chip->direction_input = bcma_gpio_direction_input;
+ chip->direction_output = bcma_gpio_direction_output;
+- chip->owner = THIS_MODULE;
+- chip->dev = bcma_bus_get_host_dev(bus);
++#if IS_BUILTIN(CONFIG_BCM47XX) || IS_BUILTIN(CONFIG_ARCH_BCM_5301X)
++ chip->to_irq = bcma_gpio_to_irq;
++#endif
+ #if IS_BUILTIN(CONFIG_OF)
+ if (cc->core->bus->hosttype == BCMA_HOSTTYPE_SOC)
+ chip->of_node = cc->core->dev.of_node;
+@@ -216,13 +248,13 @@ int bcma_gpio_init(struct bcma_drv_cc *c
+ else
+ chip->base = -1;
+
+- err = gpiochip_add(chip);
++ err = bcma_gpio_irq_domain_init(cc);
+ if (err)
+ return err;
+
+- err = bcma_gpio_irq_init(cc);
++ err = gpiochip_add(chip);
+ if (err) {
+- gpiochip_remove(chip);
++ bcma_gpio_irq_domain_exit(cc);
+ return err;
+ }
+
+@@ -231,7 +263,7 @@ int bcma_gpio_init(struct bcma_drv_cc *c
+
+ int bcma_gpio_unregister(struct bcma_drv_cc *cc)
+ {
+- bcma_gpio_irq_exit(cc);
++ bcma_gpio_irq_domain_exit(cc);
+ gpiochip_remove(&cc->gpio);
+ return 0;
+ }
+--- a/include/linux/bcma/bcma_driver_chipcommon.h
++++ b/include/linux/bcma/bcma_driver_chipcommon.h
+@@ -640,6 +640,7 @@ struct bcma_drv_cc {
+ spinlock_t gpio_lock;
+ #ifdef CONFIG_BCMA_DRIVER_GPIO
+ struct gpio_chip gpio;
++ struct irq_domain *irq_domain;
+ #endif
+ };
+
diff --git a/target/linux/brcm47xx/patches-4.4/920-cache-wround.patch b/target/linux/brcm47xx/patches-4.4/920-cache-wround.patch
new file mode 100644
index 0000000000..b730a76d39
--- /dev/null
+++ b/target/linux/brcm47xx/patches-4.4/920-cache-wround.patch
@@ -0,0 +1,138 @@
+--- a/arch/mips/include/asm/r4kcache.h
++++ b/arch/mips/include/asm/r4kcache.h
+@@ -28,10 +28,28 @@ extern void (*r4k_blast_icache)(void);
+ #ifdef CONFIG_BCM47XX
+ #include <asm/paccess.h>
+ #include <linux/ssb/ssb.h>
+-#define BCM4710_DUMMY_RREG() ((void) *((u8 *) KSEG1ADDR(SSB_ENUM_BASE)))
++#define BCM4710_DUMMY_RREG() bcm4710_dummy_rreg()
++
++static inline unsigned long bcm4710_dummy_rreg(void)
++{
++ return *(volatile unsigned long *)(KSEG1ADDR(SSB_ENUM_BASE));
++}
++
++#define BCM4710_FILL_TLB(addr) bcm4710_fill_tlb((void *)(addr))
++
++static inline unsigned long bcm4710_fill_tlb(void *addr)
++{
++ return *(unsigned long *)addr;
++}
++
++#define BCM4710_PROTECTED_FILL_TLB(addr) bcm4710_protected_fill_tlb((void *)(addr))
++
++static inline void bcm4710_protected_fill_tlb(void *addr)
++{
++ unsigned long x;
++ get_dbe(x, (unsigned long *)addr);;
++}
+
+-#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()
+
+--- a/arch/mips/mm/tlbex.c
++++ b/arch/mips/mm/tlbex.c
+@@ -943,6 +943,9 @@ build_get_pgde32(u32 **p, unsigned int t
+ uasm_i_srl(p, ptr, ptr, SMP_CPUID_PTRSHIFT);
+ uasm_i_addu(p, ptr, tmp, ptr);
+ #else
++#ifdef CONFIG_BCM47XX
++ uasm_i_nop(p);
++#endif
+ UASM_i_LA_mostly(p, ptr, pgdc);
+ #endif
+ uasm_i_mfc0(p, tmp, C0_BADVADDR); /* get faulting address */
+@@ -1281,12 +1284,12 @@ static void build_r4000_tlb_refill_handl
+ /* 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
++# ifdef CONFIG_BCM47XX
++ uasm_i_nop(&p);
++# endif
+ build_get_pgde32(&p, K0, K1); /* get pgd in K1 */
+ #endif
+
+@@ -1298,6 +1301,9 @@ static void build_r4000_tlb_refill_handl
+ build_update_entries(&p, K0, K1);
+ build_tlb_write_entry(&p, &l, &r, tlb_random);
+ uasm_l_leave(&l, p);
++#ifdef CONFIG_BCM47XX
++ uasm_i_nop(&p);
++#endif
+ uasm_i_eret(&p); /* return from trap */
+ }
+ #ifdef CONFIG_MIPS_HUGE_TLB_SUPPORT
+@@ -1871,12 +1877,12 @@ 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
++# ifdef CONFIG_BCM47XX
++ uasm_i_nop(p);
++# endif
+ build_get_pgde32(p, wr.r1, wr.r2); /* get pgd in ptr */
+ #endif
+
+@@ -1923,6 +1929,9 @@ build_r4000_tlbchange_handler_tail(u32 *
+ build_tlb_write_entry(p, l, r, tlb_indexed);
+ uasm_l_leave(l, *p);
+ build_restore_work_registers(p);
++#ifdef CONFIG_BCM47XX
++ uasm_i_nop(p);
++#endif
+ uasm_i_eret(p); /* return from trap */
+
+ #ifdef CONFIG_64BIT
+--- a/arch/mips/kernel/genex.S
++++ b/arch/mips/kernel/genex.S
+@@ -21,6 +21,19 @@
+ #include <asm/war.h>
+ #include <asm/thread_info.h>
+
++#ifdef CONFIG_BCM47XX
++# ifdef eret
++# undef eret
++# endif
++# define eret \
++ .set push; \
++ .set noreorder; \
++ nop; \
++ nop; \
++ eret; \
++ .set pop;
++#endif
++
+ __INIT
+
+ /*
+@@ -34,7 +47,6 @@ NESTED(except_vec3_generic, 0, sp)
+ .set noat
+ #ifdef CONFIG_BCM47XX
+ nop
+- nop
+ #endif
+ #if R5432_CP0_INTERRUPT_WAR
+ mfc0 k0, CP0_INDEX
+@@ -59,6 +71,9 @@ NESTED(except_vec3_r4000, 0, sp)
+ .set push
+ .set arch=r4000
+ .set noat
++#ifdef CONFIG_BCM47XX
++ nop
++#endif
+ mfc0 k1, CP0_CAUSE
+ li k0, 31<<2
+ andi k1, k1, 0x7c
diff --git a/target/linux/brcm47xx/patches-4.4/940-bcm47xx-yenta.patch b/target/linux/brcm47xx/patches-4.4/940-bcm47xx-yenta.patch
new file mode 100644
index 0000000000..00a44d6317
--- /dev/null
+++ b/target/linux/brcm47xx/patches-4.4/940-bcm47xx-yenta.patch
@@ -0,0 +1,46 @@
+--- a/drivers/pcmcia/yenta_socket.c
++++ b/drivers/pcmcia/yenta_socket.c
+@@ -919,6 +919,8 @@ static unsigned int yenta_probe_irq(stru
+ * Probe for usable interrupts using the force
+ * register to generate bogus card status events.
+ */
++#ifndef CONFIG_BCM47XX
++ /* WRT54G3G does not like this */
+ cb_writel(socket, CB_SOCKET_EVENT, -1);
+ cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK);
+ reg = exca_readb(socket, I365_CSCINT);
+@@ -934,6 +936,7 @@ static unsigned int yenta_probe_irq(stru
+ }
+ cb_writel(socket, CB_SOCKET_MASK, 0);
+ exca_writeb(socket, I365_CSCINT, reg);
++#endif
+
+ mask = probe_irq_mask(val) & 0xffff;
+
+@@ -1018,6 +1021,10 @@ static void yenta_get_socket_capabilitie
+ else
+ socket->socket.irq_mask = 0;
+
++ /* irq mask probing is broken for the WRT54G3G */
++ if (socket->socket.irq_mask == 0)
++ socket->socket.irq_mask = 0x6f8;
++
+ dev_info(&socket->dev->dev, "ISA IRQ mask 0x%04x, PCI irq %d\n",
+ socket->socket.irq_mask, socket->cb_irq);
+ }
+@@ -1250,6 +1257,15 @@ static int yenta_probe(struct pci_dev *d
+ dev_info(&dev->dev, "Socket status: %08x\n",
+ cb_readl(socket, CB_SOCKET_STATE));
+
++ /* Generate an interrupt on card insert/remove */
++ config_writew(socket, CB_SOCKET_MASK, CB_CSTSMASK | CB_CDMASK);
++
++ /* Set up Multifunction Routing Status Register */
++ config_writew(socket, 0x8C, 0x1000 /* MFUNC3 to GPIO3 */ | 0x2 /* MFUNC0 to INTA */);
++
++ /* Switch interrupts to parallelized */
++ config_writeb(socket, 0x92, 0x64);
++
+ yenta_fixup_parent_bridge(dev->subordinate);
+
+ /* Register it with the pcmcia layer.. */
diff --git a/target/linux/brcm47xx/patches-4.4/976-ssb_increase_pci_delay.patch b/target/linux/brcm47xx/patches-4.4/976-ssb_increase_pci_delay.patch
new file mode 100644
index 0000000000..90bda515eb
--- /dev/null
+++ b/target/linux/brcm47xx/patches-4.4/976-ssb_increase_pci_delay.patch
@@ -0,0 +1,11 @@
+--- a/drivers/ssb/driver_pcicore.c
++++ b/drivers/ssb/driver_pcicore.c
+@@ -389,7 +389,7 @@ static void ssb_pcicore_init_hostmode(st
+ set_io_port_base(ssb_pcicore_controller.io_map_base);
+ /* Give some time to the PCI controller to configure itself with the new
+ * values. Not waiting at this point causes crashes of the machine. */
+- mdelay(10);
++ mdelay(300);
+ register_pci_controller(&ssb_pcicore_controller);
+ }
+
diff --git a/target/linux/brcm47xx/patches-4.4/999-wl_exports.patch b/target/linux/brcm47xx/patches-4.4/999-wl_exports.patch
new file mode 100644
index 0000000000..ea59f4f1db
--- /dev/null
+++ b/target/linux/brcm47xx/patches-4.4/999-wl_exports.patch
@@ -0,0 +1,22 @@
+--- a/drivers/firmware/broadcom/bcm47xx_nvram.c
++++ b/drivers/firmware/broadcom/bcm47xx_nvram.c
+@@ -34,7 +34,8 @@ struct nvram_header {
+ u32 config_ncdl; /* ncdl values for memc */
+ };
+
+-static char nvram_buf[NVRAM_SPACE];
++char nvram_buf[NVRAM_SPACE];
++EXPORT_SYMBOL(nvram_buf);
+ static size_t nvram_len;
+ static const u32 nvram_sizes[] = {0x8000, 0xF000, 0x10000};
+ static int cfe_env;
+--- a/arch/mips/mm/cache.c
++++ b/arch/mips/mm/cache.c
+@@ -59,6 +59,7 @@ void (*_dma_cache_wback)(unsigned long s
+ void (*_dma_cache_inv)(unsigned long start, unsigned long size);
+
+ EXPORT_SYMBOL(_dma_cache_wback_inv);
++EXPORT_SYMBOL(_dma_cache_inv);
+
+ #endif /* CONFIG_DMA_NONCOHERENT || CONFIG_DMA_MAYBE_COHERENT */
+