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authorHauke Mehrtens <hauke@hauke-m.de>2013-12-01 18:05:08 +0000
committerHauke Mehrtens <hauke@hauke-m.de>2013-12-01 18:05:08 +0000
commitc48f2851473bf24cdfec371c5857826eaa6007b5 (patch)
tree1ca10df453c1f183a3c2153b31642236114c34fc /target
parentcbbfc5f1e64b05ad423201c5f6e20d83a3eac97f (diff)
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brcm47xx: deactivate mips wait instruction only for BCM4706
The wait instruction is only broken on the BCM4706 and not on the other similar SoCs. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> SVN-Revision: 38979
Diffstat (limited to 'target')
-rw-r--r--target/linux/brcm47xx/patches-3.10/170-fix-74k-cpu.patch34
-rw-r--r--target/linux/brcm47xx/patches-3.10/830-huawei_e970_support.patch4
-rw-r--r--target/linux/brcm47xx/patches-3.10/980-wnr834b_no_cardbus_invariant.patch2
3 files changed, 27 insertions, 13 deletions
diff --git a/target/linux/brcm47xx/patches-3.10/170-fix-74k-cpu.patch b/target/linux/brcm47xx/patches-3.10/170-fix-74k-cpu.patch
index 7715cf2..c585faf 100644
--- a/target/linux/brcm47xx/patches-3.10/170-fix-74k-cpu.patch
+++ b/target/linux/brcm47xx/patches-3.10/170-fix-74k-cpu.patch
@@ -1,12 +1,26 @@
---- a/arch/mips/kernel/idle.c
-+++ b/arch/mips/kernel/idle.c
-@@ -188,9 +188,6 @@ void __init check_wait(void)
- break;
+--- a/arch/mips/bcm47xx/setup.c
++++ b/arch/mips/bcm47xx/setup.c
+@@ -35,6 +35,7 @@
+ #include <asm/prom.h>
+ #include <asm/reboot.h>
+ #include <asm/time.h>
++#include <asm/idle.h>
+ #include <bcm47xx.h>
+ #include <bcm47xx_nvram.h>
+ #include <bcm47xx_board.h>
+@@ -214,6 +215,15 @@ static void __init bcm47xx_register_bcma
+ panic("Failed to initialize BCMA bus (err %d)", err);
- case CPU_74K:
-- cpu_wait = r4k_wait;
-- if ((c->processor_id & 0xff) >= PRID_REV_ENCODE_332(2, 1, 0))
-- cpu_wait = r4k_wait_irqoff;
- break;
+ bcm47xx_fill_bcma_boardinfo(&bcm47xx_bus.bcma.bus.boardinfo, NULL);
++
++ /* The BCM4706 has a problem with the CPU wait instruction.
++ * When r4k_wait or r4k_wait_irqoff is used will just hang and
++ * not return from a msleep(). Removing the cpu_wait
++ * functionality is a workaround for this problem. The BCM4716
++ * does not have this problem.
++ */
++ if (bcm47xx_bus.bcma.bus.chipinfo.id == BCMA_CHIP_ID_BCM4706)
++ cpu_wait = NULL;
+ }
+ #endif
- case CPU_TX49XX:
diff --git a/target/linux/brcm47xx/patches-3.10/830-huawei_e970_support.patch b/target/linux/brcm47xx/patches-3.10/830-huawei_e970_support.patch
index 2ff649d..4cae1ea 100644
--- a/target/linux/brcm47xx/patches-3.10/830-huawei_e970_support.patch
+++ b/target/linux/brcm47xx/patches-3.10/830-huawei_e970_support.patch
@@ -8,7 +8,7 @@
#include <asm/bootinfo.h>
#include <asm/prom.h>
#include <asm/reboot.h>
-@@ -244,6 +245,33 @@ void __init plat_mem_setup(void)
+@@ -254,6 +255,33 @@ void __init plat_mem_setup(void)
mips_set_machine_name(bcm47xx_board_get_name());
}
@@ -42,7 +42,7 @@
static int __init bcm47xx_register_bus_complete(void)
{
switch (bcm47xx_bus_type) {
-@@ -258,6 +286,8 @@ static int __init bcm47xx_register_bus_c
+@@ -268,6 +296,8 @@ static int __init bcm47xx_register_bus_c
break;
#endif
}
diff --git a/target/linux/brcm47xx/patches-3.10/980-wnr834b_no_cardbus_invariant.patch b/target/linux/brcm47xx/patches-3.10/980-wnr834b_no_cardbus_invariant.patch
index 069a0fa..f30a4fb 100644
--- a/target/linux/brcm47xx/patches-3.10/980-wnr834b_no_cardbus_invariant.patch
+++ b/target/linux/brcm47xx/patches-3.10/980-wnr834b_no_cardbus_invariant.patch
@@ -1,6 +1,6 @@
--- a/arch/mips/bcm47xx/setup.c
+++ b/arch/mips/bcm47xx/setup.c
-@@ -121,6 +121,10 @@ static int bcm47xx_get_invariants(struct
+@@ -122,6 +122,10 @@ static int bcm47xx_get_invariants(struct
if (bcm47xx_nvram_getenv("cardbus", buf, sizeof(buf)) >= 0)
iv->has_cardbus_slot = !!simple_strtoul(buf, NULL, 10);