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mac80211: b43: improve PCIe host controller workaround

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This is only needed by BCM4716 and not by BCM4706, I haven't seen any
problems there. Adds the write flush for some more parts where the phy
control regs are written.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

SVN-Revision: 38977
This commit is contained in:
Hauke Mehrtens 2013-12-01 17:23:19 +00:00
parent c61b38dacb
commit 23cd074371
1 changed files with 112 additions and 3 deletions
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115
package/kernel/mac80211/patches/830-b43-workaround-pcie-bcm4716.patch
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@ -19,7 +19,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
--- a/drivers/net/wireless/b43/b43.h
+++ b/drivers/net/wireless/b43/b43.h
@@ -1058,6 +1058,32 @@ static inline bool b43_using_pio_transfe
@@ -1058,6 +1058,31 @@ static inline bool b43_using_pio_transfe
return dev->__using_pio_transfers;
}
@ -34,8 +34,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+{
+ if (b43_bus_host_is_pci(dev->dev) &&
+ bcm47xx_bus_type == BCM47XX_BUS_TYPE_BCMA &&
+ (bcm47xx_bus.bcma.bus.chipinfo.id == 0x4716 ||
+ bcm47xx_bus.bcma.bus.chipinfo.id == 0x5300)) {
+ bcm47xx_bus.bcma.bus.chipinfo.id == BCMA_CHIP_ID_BCM4716) {
+ b43_write16(dev, offset, value);
+ b43_read16(dev, offset);
+ } else {
@ -71,6 +70,30 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
struct b43_bus_dev *b43_bus_dev_bcma_init(struct bcma_device *core);
struct b43_bus_dev *b43_bus_dev_ssb_init(struct ssb_device *sdev);
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -4419,7 +4419,7 @@ static int b43_phy_versioning(struct b43
u16 radio24[3];
for (tmp = 0; tmp < 3; tmp++) {
- b43_write16(dev, B43_MMIO_RADIO24_CONTROL, tmp);
+ b43_wflush16(dev, B43_MMIO_RADIO24_CONTROL, tmp);
radio24[tmp] = b43_read16(dev, B43_MMIO_RADIO24_DATA);
}
@@ -4438,10 +4438,10 @@ static int b43_phy_versioning(struct b43
else
tmp = 0x5205017F;
} else {
- b43_write16(dev, B43_MMIO_RADIO_CONTROL,
+ b43_wflush16(dev, B43_MMIO_RADIO_CONTROL,
B43_RADIOCTL_ID);
tmp = b43_read16(dev, B43_MMIO_RADIO_DATA_LOW);
- b43_write16(dev, B43_MMIO_RADIO_CONTROL,
+ b43_wflush16(dev, B43_MMIO_RADIO_CONTROL,
B43_RADIOCTL_ID);
tmp |= (u32)b43_read16(dev, B43_MMIO_RADIO_DATA_HIGH)
<< 16;
--- a/drivers/net/wireless/b43/phy_common.c
+++ b/drivers/net/wireless/b43/phy_common.c
@@ -266,6 +266,12 @@ void b43_phy_write(struct b43_wldev *dev
@ -86,6 +109,92 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
if (++dev->phy.writes_counter == B43_MAX_WRITES_IN_ROW) {
b43_read16(dev, B43_MMIO_PHY_VER);
dev->phy.writes_counter = 0;
--- a/drivers/net/wireless/b43/phy_ht.c
+++ b/drivers/net/wireless/b43/phy_ht.c
@@ -1073,20 +1073,20 @@ static unsigned int b43_phy_ht_op_get_de
static u16 b43_phy_ht_op_read(struct b43_wldev *dev, u16 reg)
{
- b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
+ b43_wflush16(dev, B43_MMIO_PHY_CONTROL, reg);
return b43_read16(dev, B43_MMIO_PHY_DATA);
}
static void b43_phy_ht_op_write(struct b43_wldev *dev, u16 reg, u16 value)
{
- b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
+ b43_wflush16(dev, B43_MMIO_PHY_CONTROL, reg);
b43_write16(dev, B43_MMIO_PHY_DATA, value);
}
static void b43_phy_ht_op_maskset(struct b43_wldev *dev, u16 reg, u16 mask,
u16 set)
{
- b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
+ b43_wflush16(dev, B43_MMIO_PHY_CONTROL, reg);
b43_write16(dev, B43_MMIO_PHY_DATA,
(b43_read16(dev, B43_MMIO_PHY_DATA) & mask) | set);
}
@@ -1096,14 +1096,14 @@ static u16 b43_phy_ht_op_radio_read(stru
/* HT-PHY needs 0x200 for read access */
reg |= 0x200;
- b43_write16(dev, B43_MMIO_RADIO24_CONTROL, reg);
+ b43_wflush16(dev, B43_MMIO_RADIO24_CONTROL, reg);
return b43_read16(dev, B43_MMIO_RADIO24_DATA);
}
static void b43_phy_ht_op_radio_write(struct b43_wldev *dev, u16 reg,
u16 value)
{
- b43_write16(dev, B43_MMIO_RADIO24_CONTROL, reg);
+ b43_wflush16(dev, B43_MMIO_RADIO24_CONTROL, reg);
b43_write16(dev, B43_MMIO_RADIO24_DATA, value);
}
--- a/drivers/net/wireless/b43/phy_lcn.c
+++ b/drivers/net/wireless/b43/phy_lcn.c
@@ -845,20 +845,20 @@ static void b43_phy_lcn_op_adjust_txpowe
static u16 b43_phy_lcn_op_read(struct b43_wldev *dev, u16 reg)
{
- b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
+ b43_wflush16(dev, B43_MMIO_PHY_CONTROL, reg);
return b43_read16(dev, B43_MMIO_PHY_DATA);
}
static void b43_phy_lcn_op_write(struct b43_wldev *dev, u16 reg, u16 value)
{
- b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
+ b43_wflush16(dev, B43_MMIO_PHY_CONTROL, reg);
b43_write16(dev, B43_MMIO_PHY_DATA, value);
}
static void b43_phy_lcn_op_maskset(struct b43_wldev *dev, u16 reg, u16 mask,
u16 set)
{
- b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
+ b43_wflush16(dev, B43_MMIO_PHY_CONTROL, reg);
b43_write16(dev, B43_MMIO_PHY_DATA,
(b43_read16(dev, B43_MMIO_PHY_DATA) & mask) | set);
}
@@ -868,14 +868,14 @@ static u16 b43_phy_lcn_op_radio_read(str
/* LCN-PHY needs 0x200 for read access */
reg |= 0x200;
- b43_write16(dev, B43_MMIO_RADIO24_CONTROL, reg);
+ b43_wflush16(dev, B43_MMIO_RADIO24_CONTROL, reg);
return b43_read16(dev, B43_MMIO_RADIO24_DATA);
}
static void b43_phy_lcn_op_radio_write(struct b43_wldev *dev, u16 reg,
u16 value)
{
- b43_write16(dev, B43_MMIO_RADIO24_CONTROL, reg);
+ b43_wflush16(dev, B43_MMIO_RADIO24_CONTROL, reg);
b43_write16(dev, B43_MMIO_RADIO24_DATA, value);
}
--- a/drivers/net/wireless/b43/phy_n.c
+++ b/drivers/net/wireless/b43/phy_n.c
@@ -5418,14 +5418,14 @@ static inline void check_phyreg(struct b