diff options
| -rw-r--r-- | arch/mips/bcm47xx/setup.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/mips/bcm47xx/setup.c b/arch/mips/bcm47xx/setup.c index 71e5c7cae814..aa2d8e39a9b0 100644 --- a/arch/mips/bcm47xx/setup.c +++ b/arch/mips/bcm47xx/setup.c @@ -32,6 +32,7 @@ #include <linux/ssb/ssb_embedded.h> #include <linux/bcma/bcma_soc.h> #include <asm/bootinfo.h> +#include <asm/idle.h> #include <asm/prom.h> #include <asm/reboot.h> #include <asm/time.h> @@ -199,6 +200,15 @@ static void __init bcm47xx_register_bcma(void) panic("Failed to initialize BCMA bus (err %d)", err); 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 |