diff options
Diffstat (limited to 'drivers/staging/rt2860/chips/rt3070.c')
| -rw-r--r-- | drivers/staging/rt2860/chips/rt3070.c | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/drivers/staging/rt2860/chips/rt3070.c b/drivers/staging/rt2860/chips/rt3070.c new file mode 100644 index 000000000000..627bad943a3c --- /dev/null +++ b/drivers/staging/rt2860/chips/rt3070.c @@ -0,0 +1,169 @@ +/* + ************************************************************************* + * Ralink Tech Inc. + * 5F., No.36, Taiyuan St., Jhubei City, + * Hsinchu County 302, + * Taiwan, R.O.C. + * + * (c) Copyright 2002-2007, Ralink Technology, Inc. + * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + * * + ************************************************************************* + + Module Name: + rt3070.c + + Abstract: + Specific funcitons and variables for RT3070 + + Revision History: + Who When What + -------- ---------- ---------------------------------------------- +*/ + +#ifdef RT3070 + +#include "../rt_config.h" + +#ifndef RTMP_RF_RW_SUPPORT +#error "You Should Enable compile flag RTMP_RF_RW_SUPPORT for this chip" +#endif /* RTMP_RF_RW_SUPPORT // */ + +void NICInitRT3070RFRegisters(struct rt_rtmp_adapter *pAd) +{ + int i; + u8 RFValue; + + /* Driver must read EEPROM to get RfIcType before initial RF registers */ + /* Initialize RF register to default value */ + if (IS_RT3070(pAd) || IS_RT3071(pAd)) { + /* Init RF calibration */ + /* Driver should toggle RF R30 bit7 before init RF registers */ + u32 RfReg = 0; + u32 data; + + RT30xxReadRFRegister(pAd, RF_R30, (u8 *)& RfReg); + RfReg |= 0x80; + RT30xxWriteRFRegister(pAd, RF_R30, (u8)RfReg); + RTMPusecDelay(1000); + RfReg &= 0x7F; + RT30xxWriteRFRegister(pAd, RF_R30, (u8)RfReg); + + /* Initialize RF register to default value */ + for (i = 0; i < NUM_RF_REG_PARMS; i++) { + RT30xxWriteRFRegister(pAd, + RT30xx_RFRegTable[i].Register, + RT30xx_RFRegTable[i].Value); + } + + /* add by johnli */ + if (IS_RT3070(pAd)) { + /* */ + /* The DAC issue(LDO_CFG0) has been fixed in RT3070(F). */ + /* The voltage raising patch is no longer needed for RT3070(F) */ + /* */ + if ((pAd->MACVersion & 0xffff) < 0x0201) { + /* Update MAC 0x05D4 from 01xxxxxx to 0Dxxxxxx (voltage 1.2V to 1.35V) for RT3070 to improve yield rate */ + RTUSBReadMACRegister(pAd, LDO_CFG0, &data); + data = ((data & 0xF0FFFFFF) | 0x0D000000); + RTUSBWriteMACRegister(pAd, LDO_CFG0, data); + } + } else if (IS_RT3071(pAd)) { + /* Driver should set RF R6 bit6 on before init RF registers */ + RT30xxReadRFRegister(pAd, RF_R06, (u8 *)& RfReg); + RfReg |= 0x40; + RT30xxWriteRFRegister(pAd, RF_R06, (u8)RfReg); + + /* init R31 */ + RT30xxWriteRFRegister(pAd, RF_R31, 0x14); + + /* RT3071 version E has fixed this issue */ + if ((pAd->NicConfig2.field.DACTestBit == 1) + && ((pAd->MACVersion & 0xffff) < 0x0211)) { + /* patch tx EVM issue temporarily */ + RTUSBReadMACRegister(pAd, LDO_CFG0, &data); + data = ((data & 0xE0FFFFFF) | 0x0D000000); + RTUSBWriteMACRegister(pAd, LDO_CFG0, data); + } else { + RTMP_IO_READ32(pAd, LDO_CFG0, &data); + data = ((data & 0xE0FFFFFF) | 0x01000000); + RTMP_IO_WRITE32(pAd, LDO_CFG0, data); + } + + /* patch LNA_PE_G1 failed issue */ + RTUSBReadMACRegister(pAd, GPIO_SWITCH, &data); + data &= ~(0x20); + RTUSBWriteMACRegister(pAd, GPIO_SWITCH, data); + } + /*For RF filter Calibration */ + RTMPFilterCalibration(pAd); + + /* Initialize RF R27 register, set RF R27 must be behind RTMPFilterCalibration() */ + /* */ + /* TX to RX IQ glitch(RF_R27) has been fixed in RT3070(F). */ + /* Raising RF voltage is no longer needed for RT3070(F) */ + /* */ + if ((IS_RT3070(pAd)) && ((pAd->MACVersion & 0xffff) < 0x0201)) { + RT30xxWriteRFRegister(pAd, RF_R27, 0x3); + } else if ((IS_RT3071(pAd)) + && ((pAd->MACVersion & 0xffff) < 0x0211)) { + RT30xxWriteRFRegister(pAd, RF_R27, 0x3); + } + /* set led open drain enable */ + RTUSBReadMACRegister(pAd, OPT_14, &data); + data |= 0x01; + RTUSBWriteMACRegister(pAd, OPT_14, data); + + /* move from RT30xxLoadRFNormalModeSetup because it's needed for both RT3070 and RT3071 */ + /* TX_LO1_en, RF R17 register Bit 3 to 0 */ + RT30xxReadRFRegister(pAd, RF_R17, &RFValue); + RFValue &= (~0x08); + /* to fix rx long range issue */ + if (pAd->NicConfig2.field.ExternalLNAForG == 0) { + if ((IS_RT3071(pAd) + && ((pAd->MACVersion & 0xffff) >= 0x0211)) + || IS_RT3070(pAd)) { + RFValue |= 0x20; + } + } + /* set RF_R17_bit[2:0] equal to EEPROM setting at 0x48h */ + if (pAd->TxMixerGain24G >= 1) { + RFValue &= (~0x7); /* clean bit [2:0] */ + RFValue |= pAd->TxMixerGain24G; + } + RT30xxWriteRFRegister(pAd, RF_R17, RFValue); + + if (IS_RT3071(pAd)) { + /* add by johnli, RF power sequence setup, load RF normal operation-mode setup */ + RT30xxLoadRFNormalModeSetup(pAd); + } else if (IS_RT3070(pAd)) { + /* add by johnli, reset RF_R27 when interface down & up to fix throughput problem */ + /* LDORF_VC, RF R27 register Bit 2 to 0 */ + RT30xxReadRFRegister(pAd, RF_R27, &RFValue); + /* TX to RX IQ glitch(RF_R27) has been fixed in RT3070(F). */ + /* Raising RF voltage is no longer needed for RT3070(F) */ + if ((pAd->MACVersion & 0xffff) < 0x0201) + RFValue = (RFValue & (~0x77)) | 0x3; + else + RFValue = (RFValue & (~0x77)); + RT30xxWriteRFRegister(pAd, RF_R27, RFValue); + /* end johnli */ + } + } + +} +#endif /* RT3070 // */ |