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authorRafał Miłecki <zajec5@gmail.com>2015-06-01 06:11:26 +0000
committerRafał Miłecki <zajec5@gmail.com>2015-06-01 06:11:26 +0000
commit6bc9e00e9496667e0007a0a3e1262fbf87e69b5a (patch)
treebaeb3d6311c3a39d13d569e87d2780b9517f319c /target/linux
parentc0c8d3a95fb260f386bc0cacb79018dff2eac9b4 (diff)
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kernel: backport ssb fix for WRT350N v1 (BCM4705) reboots
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> SVN-Revision: 45865
Diffstat (limited to 'target/linux')
-rw-r--r--target/linux/brcm47xx/patches-4.0/159-cpu_fixes.patch32
-rw-r--r--target/linux/brcm47xx/patches-4.0/280-activate_ssb_support_in_usb.patch2
-rw-r--r--target/linux/brcm47xx/patches-4.0/300-fork_cacheflush.patch2
-rw-r--r--target/linux/brcm47xx/patches-4.0/976-ssb_increase_pci_delay.patch2
-rw-r--r--target/linux/generic/patches-3.18/020-ssb_update.patch9
-rw-r--r--target/linux/generic/patches-4.0/020-ssb_update.patch9
6 files changed, 29 insertions, 27 deletions
diff --git a/target/linux/brcm47xx/patches-4.0/159-cpu_fixes.patch b/target/linux/brcm47xx/patches-4.0/159-cpu_fixes.patch
index 214534577e..38c64318f1 100644
--- a/target/linux/brcm47xx/patches-4.0/159-cpu_fixes.patch
+++ b/target/linux/brcm47xx/patches-4.0/159-cpu_fixes.patch
@@ -1,6 +1,6 @@
--- a/arch/mips/include/asm/r4kcache.h
+++ b/arch/mips/include/asm/r4kcache.h
-@@ -23,6 +23,20 @@
+@@ -25,6 +25,20 @@
extern void (*r4k_blast_dcache)(void);
extern void (*r4k_blast_icache)(void);
@@ -21,7 +21,7 @@
/*
* This macro return a properly sign-extended address suitable as base address
* for indexed cache operations. Two issues here:
-@@ -96,6 +110,7 @@ static inline void flush_icache_line_ind
+@@ -98,6 +112,7 @@ static inline void flush_icache_line_ind
static inline void flush_dcache_line_indexed(unsigned long addr)
{
__dflush_prologue
@@ -29,7 +29,7 @@
cache_op(Index_Writeback_Inv_D, addr);
__dflush_epilogue
}
-@@ -123,6 +138,7 @@ static inline void flush_icache_line(uns
+@@ -125,6 +140,7 @@ static inline void flush_icache_line(uns
static inline void flush_dcache_line(unsigned long addr)
{
__dflush_prologue
@@ -37,7 +37,7 @@
cache_op(Hit_Writeback_Inv_D, addr);
__dflush_epilogue
}
-@@ -130,6 +146,7 @@ static inline void flush_dcache_line(uns
+@@ -132,6 +148,7 @@ static inline void flush_dcache_line(uns
static inline void invalidate_dcache_line(unsigned long addr)
{
__dflush_prologue
@@ -45,7 +45,7 @@
cache_op(Hit_Invalidate_D, addr);
__dflush_epilogue
}
-@@ -185,6 +202,7 @@ static inline void protected_flush_icach
+@@ -187,6 +204,7 @@ static inline void protected_flush_icach
#ifdef CONFIG_EVA
protected_cachee_op(Hit_Invalidate_I, addr);
#else
@@ -53,7 +53,7 @@
protected_cache_op(Hit_Invalidate_I, addr);
#endif
break;
-@@ -199,6 +217,7 @@ static inline void protected_flush_icach
+@@ -201,6 +219,7 @@ static inline void protected_flush_icach
*/
static inline void protected_writeback_dcache_line(unsigned long addr)
{
@@ -61,7 +61,7 @@
#ifdef CONFIG_EVA
protected_cachee_op(Hit_Writeback_Inv_D, addr);
#else
-@@ -553,8 +572,51 @@ static inline void invalidate_tcache_pag
+@@ -554,8 +573,51 @@ static inline void invalidate_tcache_pag
: "r" (base), \
"i" (op));
@@ -114,7 +114,7 @@
static inline void extra##blast_##pfx##cache##lsize(void) \
{ \
unsigned long start = INDEX_BASE; \
-@@ -566,6 +628,7 @@ static inline void extra##blast_##pfx##c
+@@ -567,6 +629,7 @@ static inline void extra##blast_##pfx##c
\
__##pfx##flush_prologue \
\
@@ -122,7 +122,7 @@
for (ws = 0; ws < ws_end; ws += ws_inc) \
for (addr = start; addr < end; addr += lsize * 32) \
cache##lsize##_unroll32(addr|ws, indexop); \
-@@ -580,6 +643,7 @@ static inline void extra##blast_##pfx##c
+@@ -581,6 +644,7 @@ static inline void extra##blast_##pfx##c
\
__##pfx##flush_prologue \
\
@@ -130,7 +130,7 @@
do { \
cache##lsize##_unroll32(start, hitop); \
start += lsize * 32; \
-@@ -598,6 +662,8 @@ static inline void extra##blast_##pfx##c
+@@ -599,6 +663,8 @@ static inline void extra##blast_##pfx##c
current_cpu_data.desc.waybit; \
unsigned long ws, addr; \
\
@@ -139,7 +139,7 @@
__##pfx##flush_prologue \
\
for (ws = 0; ws < ws_end; ws += ws_inc) \
-@@ -607,26 +673,26 @@ static inline void extra##blast_##pfx##c
+@@ -608,26 +674,26 @@ static inline void extra##blast_##pfx##c
__##pfx##flush_epilogue \
}
@@ -186,7 +186,7 @@
#define __BUILD_BLAST_USER_CACHE(pfx, desc, indexop, hitop, lsize) \
static inline void blast_##pfx##cache##lsize##_user_page(unsigned long page) \
-@@ -655,17 +721,19 @@ __BUILD_BLAST_USER_CACHE(d, dcache, Inde
+@@ -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 */
@@ -207,7 +207,7 @@
prot##cache_op(hitop, addr); \
if (addr == aend) \
break; \
-@@ -677,8 +745,8 @@ static inline void prot##extra##blast_##
+@@ -678,8 +746,8 @@ static inline void prot##extra##blast_##
#ifndef CONFIG_EVA
@@ -218,7 +218,7 @@
#else
-@@ -715,14 +783,14 @@ __BUILD_PROT_BLAST_CACHE_RANGE(d, dcache
+@@ -716,14 +784,14 @@ __BUILD_PROT_BLAST_CACHE_RANGE(d, dcache
__BUILD_PROT_BLAST_CACHE_RANGE(i, icache, Hit_Invalidate_I)
#endif
@@ -369,7 +369,7 @@
/*
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
-@@ -1286,6 +1286,9 @@ static void build_r4000_tlb_refill_handl
+@@ -1269,6 +1269,9 @@ static void build_r4000_tlb_refill_handl
/* No need for uasm_i_nop */
}
@@ -379,7 +379,7 @@
#ifdef CONFIG_64BIT
build_get_pmde64(&p, &l, &r, K0, K1); /* get pmd in K1 */
#else
-@@ -1848,6 +1851,9 @@ build_r4000_tlbchange_handler_head(u32 *
+@@ -1831,6 +1834,9 @@ build_r4000_tlbchange_handler_head(u32 *
{
struct work_registers wr = build_get_work_registers(p);
diff --git a/target/linux/brcm47xx/patches-4.0/280-activate_ssb_support_in_usb.patch b/target/linux/brcm47xx/patches-4.0/280-activate_ssb_support_in_usb.patch
index c44131f2fe..c4082ab464 100644
--- a/target/linux/brcm47xx/patches-4.0/280-activate_ssb_support_in_usb.patch
+++ b/target/linux/brcm47xx/patches-4.0/280-activate_ssb_support_in_usb.patch
@@ -15,7 +15,7 @@ This prevents the options from being delete with make kernel_oldconfig.
the memory. This only works with the Broadcom SoCs from the
--- a/drivers/ssb/Kconfig
+++ b/drivers/ssb/Kconfig
-@@ -146,6 +146,7 @@ config SSB_SFLASH
+@@ -147,6 +147,7 @@ config SSB_SFLASH
config SSB_EMBEDDED
bool
depends on SSB_DRIVER_MIPS && SSB_PCICORE_HOSTMODE
diff --git a/target/linux/brcm47xx/patches-4.0/300-fork_cacheflush.patch b/target/linux/brcm47xx/patches-4.0/300-fork_cacheflush.patch
index 686fb1b945..0f79debc6b 100644
--- a/target/linux/brcm47xx/patches-4.0/300-fork_cacheflush.patch
+++ b/target/linux/brcm47xx/patches-4.0/300-fork_cacheflush.patch
@@ -1,6 +1,6 @@
--- a/arch/mips/include/asm/cacheflush.h
+++ b/arch/mips/include/asm/cacheflush.h
-@@ -32,7 +32,7 @@
+@@ -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);
diff --git a/target/linux/brcm47xx/patches-4.0/976-ssb_increase_pci_delay.patch b/target/linux/brcm47xx/patches-4.0/976-ssb_increase_pci_delay.patch
index bf932729e9..90bda515eb 100644
--- a/target/linux/brcm47xx/patches-4.0/976-ssb_increase_pci_delay.patch
+++ b/target/linux/brcm47xx/patches-4.0/976-ssb_increase_pci_delay.patch
@@ -1,6 +1,6 @@
--- a/drivers/ssb/driver_pcicore.c
+++ b/drivers/ssb/driver_pcicore.c
-@@ -388,7 +388,7 @@ static void ssb_pcicore_init_hostmode(st
+@@ -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. */
diff --git a/target/linux/generic/patches-3.18/020-ssb_update.patch b/target/linux/generic/patches-3.18/020-ssb_update.patch
index 7afba07763..f94d160fc6 100644
--- a/target/linux/generic/patches-3.18/020-ssb_update.patch
+++ b/target/linux/generic/patches-3.18/020-ssb_update.patch
@@ -78,18 +78,19 @@
}
--- a/drivers/ssb/driver_pcicore.c
+++ b/drivers/ssb/driver_pcicore.c
-@@ -357,6 +357,15 @@ static void ssb_pcicore_init_hostmode(st
+@@ -357,6 +357,16 @@ static void ssb_pcicore_init_hostmode(st
pcicore_write32(pc, SSB_PCICORE_SBTOPCI2,
SSB_PCICORE_SBTOPCI_MEM | SSB_PCI_DMA);
+ /*
+ * Accessing PCI config without a proper delay after devices reset (not
-+ * GPIO reset) was causing reboots on WRT300N v1.0.
++ * GPIO reset) was causing reboots on WRT300N v1.0 (BCM4704).
+ * Tested delay 850 us lowered reboot chance to 50-80%, 1000 us fixed it
+ * completely. Flushing all writes was also tested but with no luck.
++ * The same problem was reported for WRT350N v1 (BCM4705), so we just
++ * sleep here unconditionally.
+ */
-+ if (pc->dev->bus->chip_id == 0x4704)
-+ usleep_range(1000, 2000);
++ usleep_range(1000, 2000);
+
/* Enable PCI bridge BAR0 prefetch and burst */
val = PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
diff --git a/target/linux/generic/patches-4.0/020-ssb_update.patch b/target/linux/generic/patches-4.0/020-ssb_update.patch
index 946cb3b106..d7e15aea42 100644
--- a/target/linux/generic/patches-4.0/020-ssb_update.patch
+++ b/target/linux/generic/patches-4.0/020-ssb_update.patch
@@ -1,17 +1,18 @@
--- a/drivers/ssb/driver_pcicore.c
+++ b/drivers/ssb/driver_pcicore.c
-@@ -357,6 +357,15 @@ static void ssb_pcicore_init_hostmode(st
+@@ -357,6 +357,16 @@ static void ssb_pcicore_init_hostmode(st
pcicore_write32(pc, SSB_PCICORE_SBTOPCI2,
SSB_PCICORE_SBTOPCI_MEM | SSB_PCI_DMA);
+ /*
+ * Accessing PCI config without a proper delay after devices reset (not
-+ * GPIO reset) was causing reboots on WRT300N v1.0.
++ * GPIO reset) was causing reboots on WRT300N v1.0 (BCM4704).
+ * Tested delay 850 us lowered reboot chance to 50-80%, 1000 us fixed it
+ * completely. Flushing all writes was also tested but with no luck.
++ * The same problem was reported for WRT350N v1 (BCM4705), so we just
++ * sleep here unconditionally.
+ */
-+ if (pc->dev->bus->chip_id == 0x4704)
-+ usleep_range(1000, 2000);
++ usleep_range(1000, 2000);
+
/* Enable PCI bridge BAR0 prefetch and burst */
val = PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;