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>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@38979 3c298f89-4303-0410-b956-a3cf2f4a3e73

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 (file)
--- 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 (file)
--- 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>
  #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());
  }
  
        mips_set_machine_name(bcm47xx_board_get_name());
  }
  


@@ -42,7 +42,7 @@
  static int __init bcm47xx_register_bus_complete(void)
  {
        switch (bcm47xx_bus_type) {
  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
        }
                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 (file)
--- 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
 --- 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);
  
        if (bcm47xx_nvram_getenv("cardbus", buf, sizeof(buf)) >= 0)
                iv->has_cardbus_slot = !!simple_strtoul(buf, NULL, 10);