From: Hauke Mehrtens <hauke@xxxxxxxxxx>
The disabling of cpu_wait was done too early, before the detection was
done. This moves the code to a position where it actually works.
Signed-off-by: Hauke Mehrtens <hauke@xxxxxxxxxx>
Acked-by: Rafał Miłecki <zajec5@xxxxxxxxx>
---
V2: Remove empty spaces at ends of lines
---
arch/mips/bcm47xx/setup.c | 34 +++++++++++++++++++++++++---------
1 file changed, 25 insertions(+), 9 deletions(-)
diff --git a/arch/mips/bcm47xx/setup.c b/arch/mips/bcm47xx/setup.c
index 0bd4702..fb74862 100644
--- a/arch/mips/bcm47xx/setup.c
+++ b/arch/mips/bcm47xx/setup.c
@@ -205,15 +205,6 @@ 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
@@ -244,6 +235,31 @@ void __init plat_mem_setup(void)
mips_set_machine_name(bcm47xx_board_get_name());
}
+static int __init bcm47xx_cpu_fixes(void)
+{
+ switch (bcm47xx_bus_type) {
+#ifdef CONFIG_BCM47XX_SSB
+ case BCM47XX_BUS_TYPE_SSB:
+ /* Nothing to do */
+ break;
+#endif
+#ifdef CONFIG_BCM47XX_BCMA
+ case BCM47XX_BUS_TYPE_BCMA:
+ /* 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;
+ break;
+#endif
+ }
+ return 0;
+}
+arch_initcall(bcm47xx_cpu_fixes);
+
static struct fixed_phy_status bcm47xx_fixed_phy_status __initdata = {
.link = 1,
.speed = SPEED_100,
--
1.7.10.4
