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mt76: mt76x0: handle chip specific initval differences

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Some RF registers need different values for various chips.
For at least mt76x0_rf_central_tab registers, overwriting them later does
not work, as the wrong values can cause the entire system to hang on some
devices with MT7610E

Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau 2018-10-18 16:09:07 +02:00
parent 5567b37359
commit cadc83efce
2 changed files with 49 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/net/wireless/mediatek/mt76/mt76x0/mt76x0.h
View File

@ -33,8 +33,10 @@
static inline bool is_mt7610e(struct mt76x02_dev *dev)
{
/* TODO */
return false;
if (!mt76_is_mmio(dev))
return false;
return mt76_chip(&dev->mt76) == 0x7610;
}
static inline bool is_mt7630(struct mt76x02_dev *dev)

47
drivers/net/wireless/mediatek/mt76/mt76x0/phy.c
View File

@ -742,13 +742,56 @@ static void mt76x0_phy_calibration_work(struct work_struct *work)
MT_CALIBRATE_INTERVAL);
}
static void mt76x0_rf_patch_reg_array(struct mt76x02_dev *dev,
const struct mt76_reg_pair *rp, int len)
{
int i;
for (i = 0; i < len; i++) {
u32 reg = rp[i].reg;
u8 val = rp[i].value;
switch (reg) {
case MT_RF(0, 3):
if (mt76_is_mmio(dev)) {
if (is_mt7630(dev))
val = 0x70;
else
val = 0x63;
} else {
val = 0x73;
}
break;
case MT_RF(0, 21):
if (is_mt7610e(dev))
val = 0x10;
else
val = 0x12;
break;
case MT_RF(5, 2):
if (is_mt7630(dev))
val = 0x1d;
else if (is_mt7610e(dev))
val = 0x00;
else
val = 0x0c;
break;
default:
break;
}
mt76x0_rf_wr(dev, reg, val);
}
}
static void mt76x0_phy_rf_init(struct mt76x02_dev *dev)
{
int i;
u8 val;
RF_RANDOM_WRITE(dev, mt76x0_rf_central_tab);
RF_RANDOM_WRITE(dev, mt76x0_rf_2g_channel_0_tab);
mt76x0_rf_patch_reg_array(dev, mt76x0_rf_central_tab,
ARRAY_SIZE(mt76x0_rf_central_tab));
mt76x0_rf_patch_reg_array(dev, mt76x0_rf_2g_channel_0_tab,
ARRAY_SIZE(mt76x0_rf_2g_channel_0_tab));
RF_RANDOM_WRITE(dev, mt76x0_rf_5g_channel_0_tab);
RF_RANDOM_WRITE(dev, mt76x0_rf_vga_channel_0_tab);