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path: root/drivers/net/wireless/bcm43xx/bcm43xx_power.c
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Diffstat (limited to 'drivers/net/wireless/bcm43xx/bcm43xx_power.c')
-rw-r--r--drivers/net/wireless/bcm43xx/bcm43xx_power.c28
1 files changed, 21 insertions, 7 deletions
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_power.c b/drivers/net/wireless/bcm43xx/bcm43xx_power.c
index 6569da3a7a3..7e774f41095 100644
--- a/drivers/net/wireless/bcm43xx/bcm43xx_power.c
+++ b/drivers/net/wireless/bcm43xx/bcm43xx_power.c
@@ -153,8 +153,6 @@ int bcm43xx_pctl_init(struct bcm43xx_private *bcm)
int err, maxfreq;
struct bcm43xx_coreinfo *old_core;
- if (!(bcm->chipcommon_capabilities & BCM43xx_CAPABILITIES_PCTL))
- return 0;
old_core = bcm->current_core;
err = bcm43xx_switch_core(bcm, &bcm->core_chipcommon);
if (err == -ENODEV)
@@ -162,11 +160,27 @@ int bcm43xx_pctl_init(struct bcm43xx_private *bcm)
if (err)
goto out;
- maxfreq = bcm43xx_pctl_clockfreqlimit(bcm, 1);
- bcm43xx_write32(bcm, BCM43xx_CHIPCOMMON_PLLONDELAY,
- (maxfreq * 150 + 999999) / 1000000);
- bcm43xx_write32(bcm, BCM43xx_CHIPCOMMON_FREFSELDELAY,
- (maxfreq * 15 + 999999) / 1000000);
+ if (bcm->chip_id == 0x4321) {
+ if (bcm->chip_rev == 0)
+ bcm43xx_write32(bcm, BCM43xx_CHIPCOMMON_CTL, 0x03A4);
+ if (bcm->chip_rev == 1)
+ bcm43xx_write32(bcm, BCM43xx_CHIPCOMMON_CTL, 0x00A4);
+ }
+
+ if (bcm->chipcommon_capabilities & BCM43xx_CAPABILITIES_PCTL) {
+ if (bcm->current_core->rev >= 10) {
+ /* Set Idle Power clock rate to 1Mhz */
+ bcm43xx_write32(bcm, BCM43xx_CHIPCOMMON_SYSCLKCTL,
+ (bcm43xx_read32(bcm, BCM43xx_CHIPCOMMON_SYSCLKCTL)
+ & 0x0000FFFF) | 0x40000);
+ } else {
+ maxfreq = bcm43xx_pctl_clockfreqlimit(bcm, 1);
+ bcm43xx_write32(bcm, BCM43xx_CHIPCOMMON_PLLONDELAY,
+ (maxfreq * 150 + 999999) / 1000000);
+ bcm43xx_write32(bcm, BCM43xx_CHIPCOMMON_FREFSELDELAY,
+ (maxfreq * 15 + 999999) / 1000000);
+ }
+ }
err = bcm43xx_switch_core(bcm, old_core);
assert(err == 0);