c48f285147
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
26 lines
833 B
Diff
26 lines
833 B
Diff
--- 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);
|
|
|
|
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
|
|
|