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ath9k: add initial hardware support for ar9271

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We will finalize this after some driver core changes, for now
we leave this unsupported.

Cc: Stephen Chen <stephen.chen@atheros.com>
Cc: Zhifeng Cai <zhifeng.cai@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Luis R. Rodriguez 2009-08-03 23:14:12 -04:00 committed by John W. Linville
parent 670388c5f5
commit d7e7d229c7
4 changed files with 312 additions and 38 deletions
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106
drivers/net/wireless/ath/ath9k/calib.c
View file

@ -753,6 +753,98 @@ static void ath9k_olc_temp_compensation(struct ath_hw *ah)
}
}
static void ath9k_hw_9271_pa_cal(struct ath_hw *ah)
{
u32 regVal;
unsigned int i;
u32 regList [][2] = {
{ 0x786c, 0 },
{ 0x7854, 0 },
{ 0x7820, 0 },
{ 0x7824, 0 },
{ 0x7868, 0 },
{ 0x783c, 0 },
{ 0x7838, 0 } ,
{ 0x7828, 0 } ,
};
for (i = 0; i < ARRAY_SIZE(regList); i++)
regList[i][1] = REG_READ(ah, regList[i][0]);
regVal = REG_READ(ah, 0x7834);
regVal &= (~(0x1));
REG_WRITE(ah, 0x7834, regVal);
regVal = REG_READ(ah, 0x9808);
regVal |= (0x1 << 27);
REG_WRITE(ah, 0x9808, regVal);
/* 786c,b23,1, pwddac=1 */
REG_RMW_FIELD(ah, AR9285_AN_TOP3, AR9285_AN_TOP3_PWDDAC, 1);
/* 7854, b5,1, pdrxtxbb=1 */
REG_RMW_FIELD(ah, AR9285_AN_RXTXBB1, AR9285_AN_RXTXBB1_PDRXTXBB1, 1);
/* 7854, b7,1, pdv2i=1 */
REG_RMW_FIELD(ah, AR9285_AN_RXTXBB1, AR9285_AN_RXTXBB1_PDV2I, 1);
/* 7854, b8,1, pddacinterface=1 */
REG_RMW_FIELD(ah, AR9285_AN_RXTXBB1, AR9285_AN_RXTXBB1_PDDACIF, 1);
/* 7824,b12,0, offcal=0 */
REG_RMW_FIELD(ah, AR9285_AN_RF2G2, AR9285_AN_RF2G2_OFFCAL, 0);
/* 7838, b1,0, pwddb=0 */
REG_RMW_FIELD(ah, AR9285_AN_RF2G7, AR9285_AN_RF2G7_PWDDB, 0);
/* 7820,b11,0, enpacal=0 */
REG_RMW_FIELD(ah, AR9285_AN_RF2G1, AR9285_AN_RF2G1_ENPACAL, 0);
/* 7820,b25,1, pdpadrv1=0 */
REG_RMW_FIELD(ah, AR9285_AN_RF2G1, AR9285_AN_RF2G1_PDPADRV1, 0);
/* 7820,b24,0, pdpadrv2=0 */
REG_RMW_FIELD(ah, AR9285_AN_RF2G1,AR9285_AN_RF2G1_PDPADRV2,0);
/* 7820,b23,0, pdpaout=0 */
REG_RMW_FIELD(ah, AR9285_AN_RF2G1, AR9285_AN_RF2G1_PDPAOUT, 0);
/* 783c,b14-16,7, padrvgn2tab_0=7 */
REG_RMW_FIELD(ah, AR9285_AN_RF2G8,AR9285_AN_RF2G8_PADRVGN2TAB0, 7);
/*
* 7838,b29-31,0, padrvgn1tab_0=0
* does not matter since we turn it off
*/
REG_RMW_FIELD(ah, AR9285_AN_RF2G7,AR9285_AN_RF2G7_PADRVGN2TAB0, 0);
REG_RMW_FIELD(ah, AR9285_AN_RF2G3, AR9271_AN_RF2G3_CCOMP, 0xfff);
/* Set:
* localmode=1,bmode=1,bmoderxtx=1,synthon=1,
* txon=1,paon=1,oscon=1,synthon_force=1
*/
REG_WRITE(ah, AR9285_AN_TOP2, 0xca0358a0);
udelay(30);
REG_RMW_FIELD(ah, AR9285_AN_RF2G6, AR9271_AN_RF2G6_OFFS, 0);
/* find off_6_1; */
for (i = 6; i >= 0; i--) {
regVal = REG_READ(ah, 0x7834);
regVal |= (1 << (20 + i));
REG_WRITE(ah, 0x7834, regVal);
udelay(1);
//regVal = REG_READ(ah, 0x7834);
regVal &= (~(0x1 << (20 + i)));
regVal |= (MS(REG_READ(ah, 0x7840), AR9285_AN_RXTXBB1_SPARE9)
<< (20 + i));
REG_WRITE(ah, 0x7834, regVal);
}
/* Empirical offset correction */
#if 0
REG_RMW_FIELD(ah, AR9285_AN_RF2G6, AR9271_AN_RF2G6_OFFS, 0x20);
#endif
regVal = REG_READ(ah, 0x7834);
regVal |= 0x1;
REG_WRITE(ah, 0x7834, regVal);
regVal = REG_READ(ah, 0x9808);
regVal &= (~(0x1 << 27));
REG_WRITE(ah, 0x9808, regVal);
for (i = 0; i < ARRAY_SIZE(regList); i++)
REG_WRITE(ah, regList[i][0], regList[i][1]);
}
static inline void ath9k_hw_9285_pa_cal(struct ath_hw *ah)
{
@ -869,14 +961,26 @@ bool ath9k_hw_calibrate(struct ath_hw *ah, struct ath9k_channel *chan,
}
}
/* Do NF cal only at longer intervals */
if (longcal) {
if (AR_SREV_9285_11_OR_LATER(ah))
/* Do periodic PAOffset Cal */
if (AR_SREV_9271(ah))
ath9k_hw_9271_pa_cal(ah);
else if (AR_SREV_9285_11_OR_LATER(ah))
ath9k_hw_9285_pa_cal(ah);
if (OLC_FOR_AR9280_20_LATER || OLC_FOR_AR9287_10_LATER)
ath9k_olc_temp_compensation(ah);
/* Get the value from the previous NF cal and update history buffer */
ath9k_hw_getnf(ah, chan);
/*
* Load the NF from history buffer of the current channel.
* NF is slow time-variant, so it is OK to use a historical value.
*/
ath9k_hw_loadnf(ah, ah->curchan);
ath9k_hw_start_nfcal(ah);
}

138
drivers/net/wireless/ath/ath9k/eeprom.c
View file

@ -1237,6 +1237,10 @@ static void ath9k_hw_4k_set_gain(struct ath_hw *ah,
REG_WRITE(ah, AR9285_AN_TOP4, (AR9285_AN_TOP4_DEFAULT | 0x14));
}
/*
* Read EEPROM header info and program the device for correct operation
* given the channel value.
*/
static void ath9k_hw_4k_set_board_values(struct ath_hw *ah,
struct ath9k_channel *chan)
{
@ -1313,38 +1317,110 @@ static void ath9k_hw_4k_set_board_values(struct ath_hw *ah,
}
}
ath9k_hw_analog_shift_rmw(ah, AR9285_AN_RF2G3,
AR9285_AN_RF2G3_OB_0, AR9285_AN_RF2G3_OB_0_S, ob[0]);
ath9k_hw_analog_shift_rmw(ah, AR9285_AN_RF2G3,
AR9285_AN_RF2G3_OB_1, AR9285_AN_RF2G3_OB_1_S, ob[1]);
ath9k_hw_analog_shift_rmw(ah, AR9285_AN_RF2G3,
AR9285_AN_RF2G3_OB_2, AR9285_AN_RF2G3_OB_2_S, ob[2]);
ath9k_hw_analog_shift_rmw(ah, AR9285_AN_RF2G3,
AR9285_AN_RF2G3_OB_3, AR9285_AN_RF2G3_OB_3_S, ob[3]);
ath9k_hw_analog_shift_rmw(ah, AR9285_AN_RF2G3,
AR9285_AN_RF2G3_OB_4, AR9285_AN_RF2G3_OB_4_S, ob[4]);
if (AR_SREV_9271(ah)) {
ath9k_hw_analog_shift_rmw(ah,
AR9285_AN_RF2G3,
AR9271_AN_RF2G3_OB_cck,
AR9271_AN_RF2G3_OB_cck_S,
ob[0]);
ath9k_hw_analog_shift_rmw(ah,
AR9285_AN_RF2G3,
AR9271_AN_RF2G3_OB_psk,
AR9271_AN_RF2G3_OB_psk_S,
ob[1]);
ath9k_hw_analog_shift_rmw(ah,
AR9285_AN_RF2G3,
AR9271_AN_RF2G3_OB_qam,
AR9271_AN_RF2G3_OB_qam_S,
ob[2]);
ath9k_hw_analog_shift_rmw(ah,
AR9285_AN_RF2G3,
AR9271_AN_RF2G3_DB_1,
AR9271_AN_RF2G3_DB_1_S,
db1[0]);
ath9k_hw_analog_shift_rmw(ah,
AR9285_AN_RF2G4,
AR9271_AN_RF2G4_DB_2,
AR9271_AN_RF2G4_DB_2_S,
db2[0]);
} else {
ath9k_hw_analog_shift_rmw(ah,
AR9285_AN_RF2G3,
AR9285_AN_RF2G3_OB_0,
AR9285_AN_RF2G3_OB_0_S,
ob[0]);
ath9k_hw_analog_shift_rmw(ah,
AR9285_AN_RF2G3,
AR9285_AN_RF2G3_OB_1,
AR9285_AN_RF2G3_OB_1_S,
ob[1]);
ath9k_hw_analog_shift_rmw(ah,
AR9285_AN_RF2G3,
AR9285_AN_RF2G3_OB_2,
AR9285_AN_RF2G3_OB_2_S,
ob[2]);
ath9k_hw_analog_shift_rmw(ah,
AR9285_AN_RF2G3,
AR9285_AN_RF2G3_OB_3,
AR9285_AN_RF2G3_OB_3_S,
ob[3]);
ath9k_hw_analog_shift_rmw(ah,
AR9285_AN_RF2G3,
AR9285_AN_RF2G3_OB_4,
AR9285_AN_RF2G3_OB_4_S,
ob[4]);
ath9k_hw_analog_shift_rmw(ah, AR9285_AN_RF2G3,
AR9285_AN_RF2G3_DB1_0, AR9285_AN_RF2G3_DB1_0_S, db1[0]);
ath9k_hw_analog_shift_rmw(ah, AR9285_AN_RF2G3,
AR9285_AN_RF2G3_DB1_1, AR9285_AN_RF2G3_DB1_1_S, db1[1]);
ath9k_hw_analog_shift_rmw(ah, AR9285_AN_RF2G3,
AR9285_AN_RF2G3_DB1_2, AR9285_AN_RF2G3_DB1_2_S, db1[2]);
ath9k_hw_analog_shift_rmw(ah, AR9285_AN_RF2G4,
AR9285_AN_RF2G4_DB1_3, AR9285_AN_RF2G4_DB1_3_S, db1[3]);
ath9k_hw_analog_shift_rmw(ah, AR9285_AN_RF2G4,
AR9285_AN_RF2G4_DB1_4, AR9285_AN_RF2G4_DB1_4_S, db1[4]);
ath9k_hw_analog_shift_rmw(ah,
AR9285_AN_RF2G3,
AR9285_AN_RF2G3_DB1_0,
AR9285_AN_RF2G3_DB1_0_S,
db1[0]);
ath9k_hw_analog_shift_rmw(ah,
AR9285_AN_RF2G3,
AR9285_AN_RF2G3_DB1_1,
AR9285_AN_RF2G3_DB1_1_S,
db1[1]);
ath9k_hw_analog_shift_rmw(ah,
AR9285_AN_RF2G3,
AR9285_AN_RF2G3_DB1_2,
AR9285_AN_RF2G3_DB1_2_S,
db1[2]);
ath9k_hw_analog_shift_rmw(ah,
AR9285_AN_RF2G4,
AR9285_AN_RF2G4_DB1_3,
AR9285_AN_RF2G4_DB1_3_S,
db1[3]);
ath9k_hw_analog_shift_rmw(ah,
AR9285_AN_RF2G4,
AR9285_AN_RF2G4_DB1_4,
AR9285_AN_RF2G4_DB1_4_S, db1[4]);
ath9k_hw_analog_shift_rmw(ah, AR9285_AN_RF2G4,
AR9285_AN_RF2G4_DB2_0, AR9285_AN_RF2G4_DB2_0_S, db2[0]);
ath9k_hw_analog_shift_rmw(ah, AR9285_AN_RF2G4,
AR9285_AN_RF2G4_DB2_1, AR9285_AN_RF2G4_DB2_1_S, db2[1]);
ath9k_hw_analog_shift_rmw(ah, AR9285_AN_RF2G4,
AR9285_AN_RF2G4_DB2_2, AR9285_AN_RF2G4_DB2_2_S, db2[2]);
ath9k_hw_analog_shift_rmw(ah, AR9285_AN_RF2G4,
AR9285_AN_RF2G4_DB2_3, AR9285_AN_RF2G4_DB2_3_S, db2[3]);
ath9k_hw_analog_shift_rmw(ah, AR9285_AN_RF2G4,
AR9285_AN_RF2G4_DB2_4, AR9285_AN_RF2G4_DB2_4_S, db2[4]);
ath9k_hw_analog_shift_rmw(ah,
AR9285_AN_RF2G4,
AR9285_AN_RF2G4_DB2_0,
AR9285_AN_RF2G4_DB2_0_S,
db2[0]);
ath9k_hw_analog_shift_rmw(ah,
AR9285_AN_RF2G4,
AR9285_AN_RF2G4_DB2_1,
AR9285_AN_RF2G4_DB2_1_S,
db2[1]);
ath9k_hw_analog_shift_rmw(ah,
AR9285_AN_RF2G4,
AR9285_AN_RF2G4_DB2_2,
AR9285_AN_RF2G4_DB2_2_S,
db2[2]);
ath9k_hw_analog_shift_rmw(ah,
AR9285_AN_RF2G4,
AR9285_AN_RF2G4_DB2_3,
AR9285_AN_RF2G4_DB2_3_S,
db2[3]);
ath9k_hw_analog_shift_rmw(ah,
AR9285_AN_RF2G4,
AR9285_AN_RF2G4_DB2_4,
AR9285_AN_RF2G4_DB2_4_S,
db2[4]);
}
if (AR_SREV_9285_11(ah))
@ -3984,7 +4060,7 @@ int ath9k_hw_eeprom_init(struct ath_hw *ah)
if (AR_SREV_9287(ah)) {
ah->eep_map = EEP_MAP_AR9287;
ah->eep_ops = &eep_AR9287_ops;
} else if (AR_SREV_9285(ah)) {
} else if (AR_SREV_9285(ah) || AR_SREV_9271(ah)) {
ah->eep_map = EEP_MAP_4KBITS;
ah->eep_ops = &eep_4k_ops;
} else {

104
drivers/net/wireless/ath/ath9k/hw.c
View file

@ -638,6 +638,8 @@ static bool ath9k_hw_macversion_supported(u32 macversion)
case AR_SREV_VERSION_9285:
case AR_SREV_VERSION_9287:
return true;
/* Not yet */
case AR_SREV_VERSION_9271:
default:
break;
}
@ -670,6 +672,14 @@ static void ath9k_hw_init_cal_settings(struct ath_hw *ah)
static void ath9k_hw_init_mode_regs(struct ath_hw *ah)
{
if (AR_SREV_9271(ah)) {
INIT_INI_ARRAY(&ah->iniModes, ar9271Modes_9271_1_0,
ARRAY_SIZE(ar9271Modes_9271_1_0), 6);
INIT_INI_ARRAY(&ah->iniCommon, ar9271Common_9271_1_0,
ARRAY_SIZE(ar9271Common_9271_1_0), 2);
return;
}
if (AR_SREV_9287_11_OR_LATER(ah)) {
INIT_INI_ARRAY(&ah->iniModes, ar9287Modes_9287_1_1,
ARRAY_SIZE(ar9287Modes_9287_1_1), 6);
@ -943,6 +953,10 @@ int ath9k_hw_init(struct ath_hw *ah)
ah->supp_cals = IQ_MISMATCH_CAL;
ah->is_pciexpress = false;
}
if (AR_SREV_9271(ah))
ah->is_pciexpress = false;
ah->hw_version.phyRev = REG_READ(ah, AR_PHY_CHIP_ID);
ath9k_hw_init_cal_settings(ah);
@ -973,7 +987,7 @@ int ath9k_hw_init(struct ath_hw *ah)
return r;
}
if (AR_SREV_9285(ah))
if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
ah->tx_trig_level = (AR_FTRIG_256B >> AR_FTRIG_S);
else
ah->tx_trig_level = (AR_FTRIG_512B >> AR_FTRIG_S);
@ -1234,6 +1248,27 @@ void ath9k_hw_detach(struct ath_hw *ah)
static void ath9k_hw_override_ini(struct ath_hw *ah,
struct ath9k_channel *chan)
{
u32 val;
if (AR_SREV_9271(ah)) {
/*
* Enable spectral scan to solution for issues with stuck
* beacons on AR9271 1.0. The beacon stuck issue is not seeon on
* AR9271 1.1
*/
if (AR_SREV_9271_10(ah)) {
val = REG_READ(ah, AR_PHY_SPECTRAL_SCAN) | AR_PHY_SPECTRAL_SCAN_ENABLE;
REG_WRITE(ah, AR_PHY_SPECTRAL_SCAN, val);
}
else if (AR_SREV_9271_11(ah))
/*
* change AR_PHY_RF_CTL3 setting to fix MAC issue
* present on AR9271 1.1
*/
REG_WRITE(ah, AR_PHY_RF_CTL3, 0x3a020001);
return;
}
/*
* Set the RX_ABORT and RX_DIS and clear if off only after
* RXE is set for MAC. This prevents frames with corrupted
@ -1245,7 +1280,10 @@ static void ath9k_hw_override_ini(struct ath_hw *ah,
if (!AR_SREV_5416_20_OR_LATER(ah) ||
AR_SREV_9280_10_OR_LATER(ah))
return;
/*
* Disable BB clock gating
* Necessary to avoid issues on AR5416 2.0
*/
REG_WRITE(ah, 0x9800 + (651 << 2), 0x11);
}
@ -1477,23 +1515,48 @@ static inline void ath9k_hw_set_dma(struct ath_hw *ah)
{
u32 regval;
/*
* set AHB_MODE not to do cacheline prefetches
*/
regval = REG_READ(ah, AR_AHB_MODE);
REG_WRITE(ah, AR_AHB_MODE, regval | AR_AHB_PREFETCH_RD_EN);
/*
* let mac dma reads be in 128 byte chunks
*/
regval = REG_READ(ah, AR_TXCFG) & ~AR_TXCFG_DMASZ_MASK;
REG_WRITE(ah, AR_TXCFG, regval | AR_TXCFG_DMASZ_128B);
/*
* Restore TX Trigger Level to its pre-reset value.
* The initial value depends on whether aggregation is enabled, and is
* adjusted whenever underruns are detected.
*/
REG_RMW_FIELD(ah, AR_TXCFG, AR_FTRIG, ah->tx_trig_level);
/*
* let mac dma writes be in 128 byte chunks
*/
regval = REG_READ(ah, AR_RXCFG) & ~AR_RXCFG_DMASZ_MASK;
REG_WRITE(ah, AR_RXCFG, regval | AR_RXCFG_DMASZ_128B);
/*
* Setup receive FIFO threshold to hold off TX activities
*/
REG_WRITE(ah, AR_RXFIFO_CFG, 0x200);
/*
* reduce the number of usable entries in PCU TXBUF to avoid
* wrap around issues.
*/
if (AR_SREV_9285(ah)) {
/* For AR9285 the number of Fifos are reduced to half.
* So set the usable tx buf size also to half to
* avoid data/delimiter underruns
*/
REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE);
} else {
} else if (!AR_SREV_9271(ah)) {
REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
AR_PCU_TXBUF_CTRL_USABLE_SIZE);
}
@ -2299,11 +2362,26 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
ath9k_hw_mark_phy_inactive(ah);
if (AR_SREV_9271(ah) && ah->htc_reset_init) {
REG_WRITE(ah,
AR9271_RESET_POWER_DOWN_CONTROL,
AR9271_RADIO_RF_RST);
udelay(50);
}
if (!ath9k_hw_chip_reset(ah, chan)) {
DPRINTF(ah->ah_sc, ATH_DBG_FATAL, "Chip reset failed\n");
return -EINVAL;
}
if (AR_SREV_9271(ah) && ah->htc_reset_init) {
ah->htc_reset_init = false;
REG_WRITE(ah,
AR9271_RESET_POWER_DOWN_CONTROL,
AR9271_GATE_MAC_CTL);
udelay(50);
}
if (AR_SREV_9280_10_OR_LATER(ah))
REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
@ -2439,6 +2517,9 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
REG_WRITE(ah, AR_CFG_LED, saveLedState | AR_CFG_SCLK_32KHZ);
/*
* For big endian systems turn on swapping for descriptors
*/
if (AR_SREV_9100(ah)) {
u32 mask;
mask = REG_READ(ah, AR_CFG);
@ -2453,8 +2534,12 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
"Setting CFG 0x%x\n", REG_READ(ah, AR_CFG));
}
} else {
/* Configure AR9271 target WLAN */
if (AR_SREV_9271(ah))
REG_WRITE(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB);
#ifdef __BIG_ENDIAN
REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
else
REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
#endif
}
@ -2981,7 +3066,7 @@ void ath9k_hw_configpcipowersave(struct ath_hw *ah, int restore)
if (ah->config.pcie_waen) {
REG_WRITE(ah, AR_WA, ah->config.pcie_waen);
} else {
if (AR_SREV_9285(ah))
if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
REG_WRITE(ah, AR_WA, AR9285_WA_DEFAULT);
/*
* On AR9280 chips bit 22 of 0x4004 needs to be set to
@ -3445,10 +3530,17 @@ void ath9k_hw_fill_cap_info(struct ath_hw *ah)
}
pCap->tx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_TX_MASK);
/*
* For AR9271 we will temporarilly uses the rx chainmax as read from
* the EEPROM.
*/
if ((ah->hw_version.devid == AR5416_DEVID_PCI) &&
!(eeval & AR5416_OPFLAGS_11A))
!(eeval & AR5416_OPFLAGS_11A) &&
!(AR_SREV_9271(ah)))
/* CB71: GPIO 0 is pulled down to indicate 3 rx chains */
pCap->rx_chainmask = ath9k_hw_gpio_get(ah, 0) ? 0x5 : 0x7;
else
/* Use rx_chainmask from EEPROM. */
pCap->rx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_RX_MASK);
if (!(AR_SREV_9280(ah) && (ah->hw_version.macRev == 0)))

2
drivers/net/wireless/ath/ath9k/hw.h
View file

@ -419,6 +419,8 @@ struct ath_hw {
u32 wlanactive_gpio;
u32 ah_flags;
bool htc_reset_init;
enum nl80211_iftype opmode;
enum ath9k_power_mode power_mode;