drivers/net/wireless/ath/ath9k/ar9002_hw.c - nest-cam/v366/kernel_backports - Git at Google

 /*
  * Copyright (c) 2008-2011 Atheros Communications Inc.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
  * copyright notice and this permission notice appear in all copies.
  *
  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */

 #include <linux/moduleparam.h>
 #include "hw.h"
 #include "ar5008_initvals.h"
 #include "ar9001_initvals.h"
 #include "ar9002_initvals.h"
 #include "ar9002_phy.h"

 /* General hardware code for the A5008/AR9001/AR9002 hadware families */

 static int ar9002_hw_init_mode_regs(struct ath_hw *ah)
 {
 	if (AR_SREV_9271(ah)) {
 		INIT_INI_ARRAY(&ah->iniModes, ar9271Modes_9271);
 		INIT_INI_ARRAY(&ah->iniCommon, ar9271Common_9271);
 		INIT_INI_ARRAY(&ah->iniModes_9271_ANI_reg, ar9271Modes_9271_ANI_reg);
 		return 0;
 	}

 	INIT_INI_ARRAY(&ah->iniPcieSerdes,
 		       ar9280PciePhy_clkreq_always_on_L1_9280);

 	if (AR_SREV_9287_11_OR_LATER(ah)) {
 		INIT_INI_ARRAY(&ah->iniModes, ar9287Modes_9287_1_1);
 		INIT_INI_ARRAY(&ah->iniCommon, ar9287Common_9287_1_1);
 	} else if (AR_SREV_9285_12_OR_LATER(ah)) {
 		INIT_INI_ARRAY(&ah->iniModes, ar9285Modes_9285_1_2);
 		INIT_INI_ARRAY(&ah->iniCommon, ar9285Common_9285_1_2);
 	} else if (AR_SREV_9280_20_OR_LATER(ah)) {
 		INIT_INI_ARRAY(&ah->iniModes, ar9280Modes_9280_2);
 		INIT_INI_ARRAY(&ah->iniCommon, ar9280Common_9280_2);

 		INIT_INI_ARRAY(&ah->iniModesFastClock,
 			       ar9280Modes_fast_clock_9280_2);
 	} else if (AR_SREV_9160_10_OR_LATER(ah)) {
 		INIT_INI_ARRAY(&ah->iniModes, ar5416Modes_9160);
 		INIT_INI_ARRAY(&ah->iniCommon, ar5416Common_9160);
 		if (AR_SREV_9160_11(ah)) {
 			INIT_INI_ARRAY(&ah->iniAddac,
 				       ar5416Addac_9160_1_1);
 		} else {
 			INIT_INI_ARRAY(&ah->iniAddac, ar5416Addac_9160);
 		}
 	} else if (AR_SREV_9100_OR_LATER(ah)) {
 		INIT_INI_ARRAY(&ah->iniModes, ar5416Modes_9100);
 		INIT_INI_ARRAY(&ah->iniCommon, ar5416Common_9100);
 		INIT_INI_ARRAY(&ah->iniAddac, ar5416Addac_9100);
 	} else {
 		INIT_INI_ARRAY(&ah->iniModes, ar5416Modes);
 		INIT_INI_ARRAY(&ah->iniCommon, ar5416Common);
 		INIT_INI_ARRAY(&ah->iniAddac, ar5416Addac);
 	}

 	if (!AR_SREV_9280_20_OR_LATER(ah)) {
 		/* Common for AR5416, AR913x, AR9160 */
 		INIT_INI_ARRAY(&ah->iniBB_RfGain, ar5416BB_RfGain);

 		/* Common for AR913x, AR9160 */
 		if (!AR_SREV_5416(ah))
 			INIT_INI_ARRAY(&ah->iniBank6, ar5416Bank6TPC_9100);
 		else
 			INIT_INI_ARRAY(&ah->iniBank6, ar5416Bank6TPC);
 	}

 	/* iniAddac needs to be modified for these chips */
 	if (AR_SREV_9160(ah) || !AR_SREV_5416_22_OR_LATER(ah)) {
 		struct ar5416IniArray *addac = &ah->iniAddac;
 		u32 size = sizeof(u32) * addac->ia_rows * addac->ia_columns;
 		u32 *data;

 		data = devm_kzalloc(ah->dev, size, GFP_KERNEL);
 		if (!data)
 			return -ENOMEM;

 		memcpy(data, addac->ia_array, size);
 		addac->ia_array = data;

 		if (!AR_SREV_5416_22_OR_LATER(ah)) {
 			/* override CLKDRV value */
 			INI_RA(addac, 31,1) = 0;
 		}
 	}
 	if (AR_SREV_9287_11_OR_LATER(ah)) {
 		INIT_INI_ARRAY(&ah->iniCckfirNormal,
 		       ar9287Common_normal_cck_fir_coeff_9287_1_1);
 		INIT_INI_ARRAY(&ah->iniCckfirJapan2484,
 		       ar9287Common_japan_2484_cck_fir_coeff_9287_1_1);
 	}
 	return 0;
 }

 static void ar9280_20_hw_init_rxgain_ini(struct ath_hw *ah)
 {
 	u32 rxgain_type;

 	if (ah->eep_ops->get_eeprom(ah, EEP_MINOR_REV) >=
 	    AR5416_EEP_MINOR_VER_17) {
 		rxgain_type = ah->eep_ops->get_eeprom(ah, EEP_RXGAIN_TYPE);

 		if (rxgain_type == AR5416_EEP_RXGAIN_13DB_BACKOFF)
 			INIT_INI_ARRAY(&ah->iniModesRxGain,
 				       ar9280Modes_backoff_13db_rxgain_9280_2);
 		else if (rxgain_type == AR5416_EEP_RXGAIN_23DB_BACKOFF)
 			INIT_INI_ARRAY(&ah->iniModesRxGain,
 				       ar9280Modes_backoff_23db_rxgain_9280_2);
 		else
 			INIT_INI_ARRAY(&ah->iniModesRxGain,
 				       ar9280Modes_original_rxgain_9280_2);
 	} else {
 		INIT_INI_ARRAY(&ah->iniModesRxGain,
 			       ar9280Modes_original_rxgain_9280_2);
 	}
 }

 static void ar9280_20_hw_init_txgain_ini(struct ath_hw *ah, u32 txgain_type)
 {
 	if (ah->eep_ops->get_eeprom(ah, EEP_MINOR_REV) >=
 	    AR5416_EEP_MINOR_VER_19) {
 		if (txgain_type == AR5416_EEP_TXGAIN_HIGH_POWER)
 			INIT_INI_ARRAY(&ah->iniModesTxGain,
 				       ar9280Modes_high_power_tx_gain_9280_2);
 		else
 			INIT_INI_ARRAY(&ah->iniModesTxGain,
 				       ar9280Modes_original_tx_gain_9280_2);
 	} else {
 		INIT_INI_ARRAY(&ah->iniModesTxGain,
 			       ar9280Modes_original_tx_gain_9280_2);
 	}
 }

 static void ar9271_hw_init_txgain_ini(struct ath_hw *ah, u32 txgain_type)
 {
 	if (txgain_type == AR5416_EEP_TXGAIN_HIGH_POWER)
 		INIT_INI_ARRAY(&ah->iniModesTxGain,
 			       ar9271Modes_high_power_tx_gain_9271);
 	else
 		INIT_INI_ARRAY(&ah->iniModesTxGain,
 			       ar9271Modes_normal_power_tx_gain_9271);
 }

 static void ar9002_hw_init_mode_gain_regs(struct ath_hw *ah)
 {
 	u32 txgain_type = ah->eep_ops->get_eeprom(ah, EEP_TXGAIN_TYPE);

 	if (AR_SREV_9287_11_OR_LATER(ah))
 		INIT_INI_ARRAY(&ah->iniModesRxGain,
 			       ar9287Modes_rx_gain_9287_1_1);
 	else if (AR_SREV_9280_20(ah))
 		ar9280_20_hw_init_rxgain_ini(ah);

 	if (AR_SREV_9271(ah)) {
 		ar9271_hw_init_txgain_ini(ah, txgain_type);
 	} else if (AR_SREV_9287_11_OR_LATER(ah)) {
 		INIT_INI_ARRAY(&ah->iniModesTxGain,
 			       ar9287Modes_tx_gain_9287_1_1);
 	} else if (AR_SREV_9280_20(ah)) {
 		ar9280_20_hw_init_txgain_ini(ah, txgain_type);
 	} else if (AR_SREV_9285_12_OR_LATER(ah)) {
 		/* txgain table */
 		if (txgain_type == AR5416_EEP_TXGAIN_HIGH_POWER) {
 			if (AR_SREV_9285E_20(ah)) {
 				INIT_INI_ARRAY(&ah->iniModesTxGain,
 					       ar9285Modes_XE2_0_high_power);
 			} else {
 				INIT_INI_ARRAY(&ah->iniModesTxGain,
 					ar9285Modes_high_power_tx_gain_9285_1_2);
 			}
 		} else {
 			if (AR_SREV_9285E_20(ah)) {
 				INIT_INI_ARRAY(&ah->iniModesTxGain,
 					       ar9285Modes_XE2_0_normal_power);
 			} else {
 				INIT_INI_ARRAY(&ah->iniModesTxGain,
 					ar9285Modes_original_tx_gain_9285_1_2);
 			}
 		}
 	}
 }

 /*
  * Helper for ASPM support.
  *
  * Disable PLL when in L0s as well as receiver clock when in L1.
  * This power saving option must be enabled through the SerDes.
  *
  * Programming the SerDes must go through the same 288 bit serial shift
  * register as the other analog registers.  Hence the 9 writes.
  */
 static void ar9002_hw_configpcipowersave(struct ath_hw *ah,
 					 bool power_off)
 {
 	u8 i;
 	u32 val;

 	/* Nothing to do on restore for 11N */
 	if (!power_off /* !restore */) {
 		if (AR_SREV_9280_20_OR_LATER(ah)) {
 			/*
 			 * AR9280 2.0 or later chips use SerDes values from the
 			 * initvals.h initialized depending on chipset during
 			 * __ath9k_hw_init()
 			 */
 			for (i = 0; i < ah->iniPcieSerdes.ia_rows; i++) {
 				REG_WRITE(ah, INI_RA(&ah->iniPcieSerdes, i, 0),
 					  INI_RA(&ah->iniPcieSerdes, i, 1));
 			}
 		} else {
 			ENABLE_REGWRITE_BUFFER(ah);

 			REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00);
 			REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);

 			/* RX shut off when elecidle is asserted */
 			REG_WRITE(ah, AR_PCIE_SERDES, 0x28000039);
 			REG_WRITE(ah, AR_PCIE_SERDES, 0x53160824);
 			REG_WRITE(ah, AR_PCIE_SERDES, 0xe5980579);

 			/*
 			 * Ignore ah->ah_config.pcie_clock_req setting for
 			 * pre-AR9280 11n
 			 */
 			REG_WRITE(ah, AR_PCIE_SERDES, 0x001defff);

 			REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
 			REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
 			REG_WRITE(ah, AR_PCIE_SERDES, 0x000e3007);

 			/* Load the new settings */
 			REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);

 			REGWRITE_BUFFER_FLUSH(ah);
 		}

 		udelay(1000);
 	}

 	if (power_off) {
 		/* clear bit 19 to disable L1 */
 		REG_CLR_BIT(ah, AR_PCIE_PM_CTRL, AR_PCIE_PM_CTRL_ENA);

 		val = REG_READ(ah, AR_WA);

 		/*
 		 * Set PCIe workaround bits
 		 * In AR9280 and AR9285, bit 14 in WA register (disable L1)
 		 * should only  be set when device enters D3 and be
 		 * cleared when device comes back to D0.
 		 */
 		if (ah->config.pcie_waen) {
 			if (ah->config.pcie_waen & AR_WA_D3_L1_DISABLE)
 				val |= AR_WA_D3_L1_DISABLE;
 		} else {
 			if (AR_SREV_9285(ah) || AR_SREV_9271(ah) || AR_SREV_9287(ah)) {
 				if (AR9285_WA_DEFAULT & AR_WA_D3_L1_DISABLE)
 					val |= AR_WA_D3_L1_DISABLE;
 			} else if (AR_SREV_9280(ah)) {
 				if (AR9280_WA_DEFAULT & AR_WA_D3_L1_DISABLE)
 					val |= AR_WA_D3_L1_DISABLE;
 			}
 		}

 		if (AR_SREV_9280(ah) || AR_SREV_9285(ah) || AR_SREV_9287(ah)) {
 			/*
 			 * Disable bit 6 and 7 before entering D3 to
 			 * prevent system hang.
 			 */
 			val &= ~(AR_WA_BIT6 | AR_WA_BIT7);
 		}

 		if (AR_SREV_9280(ah))
 			val |= AR_WA_BIT22;

 		if (AR_SREV_9285E_20(ah))
 			val |= AR_WA_BIT23;

 		REG_WRITE(ah, AR_WA, val);
 	} else {
 		if (ah->config.pcie_waen) {
 			val = ah->config.pcie_waen;
 			val &= (~AR_WA_D3_L1_DISABLE);
 		} else {
 			if (AR_SREV_9285(ah) || AR_SREV_9271(ah) || AR_SREV_9287(ah)) {
 				val = AR9285_WA_DEFAULT;
 				val &= (~AR_WA_D3_L1_DISABLE);
 			} else if (AR_SREV_9280(ah)) {
 				/*
 				 * For AR9280 chips, bit 22 of 0x4004
 				 * needs to be set.
 				 */
 				val = AR9280_WA_DEFAULT;
 				val &= (~AR_WA_D3_L1_DISABLE);
 			} else {
 				val = AR_WA_DEFAULT;
 			}
 		}

 		/* WAR for ASPM system hang */
 		if (AR_SREV_9285(ah) || AR_SREV_9287(ah))
 			val |= (AR_WA_BIT6 | AR_WA_BIT7);

 		if (AR_SREV_9285E_20(ah))
 			val |= AR_WA_BIT23;

 		REG_WRITE(ah, AR_WA, val);

 		/* set bit 19 to allow forcing of pcie core into L1 state */
 		REG_SET_BIT(ah, AR_PCIE_PM_CTRL, AR_PCIE_PM_CTRL_ENA);
 	}
 }

 static int ar9002_hw_get_radiorev(struct ath_hw *ah)
 {
 	u32 val;
 	int i;

 	ENABLE_REGWRITE_BUFFER(ah);

 	REG_WRITE(ah, AR_PHY(0x36), 0x00007058);
 	for (i = 0; i < 8; i++)
 		REG_WRITE(ah, AR_PHY(0x20), 0x00010000);

 	REGWRITE_BUFFER_FLUSH(ah);

 	val = (REG_READ(ah, AR_PHY(256)) >> 24) & 0xff;
 	val = ((val & 0xf0) >> 4) | ((val & 0x0f) << 4);

 	return ath9k_hw_reverse_bits(val, 8);
 }

 int ar9002_hw_rf_claim(struct ath_hw *ah)
 {
 	u32 val;

 	REG_WRITE(ah, AR_PHY(0), 0x00000007);

 	val = ar9002_hw_get_radiorev(ah);
 	switch (val & AR_RADIO_SREV_MAJOR) {
 	case 0:
 		val = AR_RAD5133_SREV_MAJOR;
 		break;
 	case AR_RAD5133_SREV_MAJOR:
 	case AR_RAD5122_SREV_MAJOR:
 	case AR_RAD2133_SREV_MAJOR:
 	case AR_RAD2122_SREV_MAJOR:
 		break;
 	default:
 		ath_err(ath9k_hw_common(ah),
 			"Radio Chip Rev 0x%02X not supported\n",
 			val & AR_RADIO_SREV_MAJOR);
 		return -EOPNOTSUPP;
 	}

 	ah->hw_version.analog5GhzRev = val;

 	return 0;
 }

 void ar9002_hw_enable_async_fifo(struct ath_hw *ah)
 {
 	if (AR_SREV_9287_13_OR_LATER(ah)) {
 		REG_SET_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
 				AR_MAC_PCU_ASYNC_FIFO_REG3_DATAPATH_SEL);
 		REG_SET_BIT(ah, AR_PHY_MODE, AR_PHY_MODE_ASYNCFIFO);
 		REG_CLR_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
 				AR_MAC_PCU_ASYNC_FIFO_REG3_SOFT_RESET);
 		REG_SET_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
 				AR_MAC_PCU_ASYNC_FIFO_REG3_SOFT_RESET);
 	}
 }

 static void ar9002_hw_init_hang_checks(struct ath_hw *ah)
 {
 	if (AR_SREV_9100(ah) || AR_SREV_9160(ah)) {
 		ah->config.hw_hang_checks |= HW_BB_RIFS_HANG;
 		ah->config.hw_hang_checks |= HW_BB_DFS_HANG;
 	}

 	if (AR_SREV_9280(ah))
 		ah->config.hw_hang_checks |= HW_BB_RX_CLEAR_STUCK_HANG;

 	if (AR_SREV_5416(ah) || AR_SREV_9100(ah) || AR_SREV_9160(ah))
 		ah->config.hw_hang_checks |= HW_MAC_HANG;
 }

 /* Sets up the AR5008/AR9001/AR9002 hardware familiy callbacks */
 int ar9002_hw_attach_ops(struct ath_hw *ah)
 {
 	struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah);
 	struct ath_hw_ops *ops = ath9k_hw_ops(ah);
 	int ret;

 	ret = ar9002_hw_init_mode_regs(ah);
 	if (ret)
 		return ret;

 	priv_ops->init_mode_gain_regs = ar9002_hw_init_mode_gain_regs;
 	priv_ops->init_hang_checks = ar9002_hw_init_hang_checks;

 	ops->config_pci_powersave = ar9002_hw_configpcipowersave;

 	ret = ar5008_hw_attach_phy_ops(ah);
 	if (ret)
 		return ret;

 	if (AR_SREV_9280_20_OR_LATER(ah))
 		ar9002_hw_attach_phy_ops(ah);

 	ar9002_hw_attach_calib_ops(ah);
 	ar9002_hw_attach_mac_ops(ah);
 	return 0;
 }

 void ar9002_hw_load_ani_reg(struct ath_hw *ah, struct ath9k_channel *chan)
 {
 	u32 modesIndex;
 	int i;

 	if (IS_CHAN_5GHZ(chan))
 		modesIndex = IS_CHAN_HT40(chan) ? 2 : 1;
 	else
 		modesIndex = IS_CHAN_HT40(chan) ? 3 : 4;

 	ENABLE_REGWRITE_BUFFER(ah);

 	for (i = 0; i < ah->iniModes_9271_ANI_reg.ia_rows; i++) {
 		u32 reg = INI_RA(&ah->iniModes_9271_ANI_reg, i, 0);
 		u32 val = INI_RA(&ah->iniModes_9271_ANI_reg, i, modesIndex);
 		u32 val_orig;

 		if (reg == AR_PHY_CCK_DETECT) {
 			val_orig = REG_READ(ah, reg);
 			val &= AR_PHY_CCK_DETECT_WEAK_SIG_THR_CCK;
 			val_orig &= ~AR_PHY_CCK_DETECT_WEAK_SIG_THR_CCK;

 			REG_WRITE(ah, reg, val|val_orig);
 		} else
 			REG_WRITE(ah, reg, val);
 	}

 	REGWRITE_BUFFER_FLUSH(ah);
 }
	/*
	* Copyright (c) 2008-2011 Atheros Communications Inc.
	*
	* Permission to use, copy, modify, and/or distribute this software for any
	* purpose with or without fee is hereby granted, provided that the above
	* copyright notice and this permission notice appear in all copies.
	*
	* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
	* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
	* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
	* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
	* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
	* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
	* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
	*/

	#include <linux/moduleparam.h>
	#include "hw.h"
	#include "ar5008_initvals.h"
	#include "ar9001_initvals.h"
	#include "ar9002_initvals.h"
	#include "ar9002_phy.h"

	/* General hardware code for the A5008/AR9001/AR9002 hadware families */

	static int ar9002_hw_init_mode_regs(struct ath_hw *ah)
	{
	if (AR_SREV_9271(ah)) {
	INIT_INI_ARRAY(&ah->iniModes, ar9271Modes_9271);
	INIT_INI_ARRAY(&ah->iniCommon, ar9271Common_9271);
	INIT_INI_ARRAY(&ah->iniModes_9271_ANI_reg, ar9271Modes_9271_ANI_reg);
	return 0;
	}

	INIT_INI_ARRAY(&ah->iniPcieSerdes,
	ar9280PciePhy_clkreq_always_on_L1_9280);

	if (AR_SREV_9287_11_OR_LATER(ah)) {
	INIT_INI_ARRAY(&ah->iniModes, ar9287Modes_9287_1_1);
	INIT_INI_ARRAY(&ah->iniCommon, ar9287Common_9287_1_1);
	} else if (AR_SREV_9285_12_OR_LATER(ah)) {
	INIT_INI_ARRAY(&ah->iniModes, ar9285Modes_9285_1_2);
	INIT_INI_ARRAY(&ah->iniCommon, ar9285Common_9285_1_2);
	} else if (AR_SREV_9280_20_OR_LATER(ah)) {
	INIT_INI_ARRAY(&ah->iniModes, ar9280Modes_9280_2);
	INIT_INI_ARRAY(&ah->iniCommon, ar9280Common_9280_2);

	INIT_INI_ARRAY(&ah->iniModesFastClock,
	ar9280Modes_fast_clock_9280_2);
	} else if (AR_SREV_9160_10_OR_LATER(ah)) {
	INIT_INI_ARRAY(&ah->iniModes, ar5416Modes_9160);
	INIT_INI_ARRAY(&ah->iniCommon, ar5416Common_9160);
	if (AR_SREV_9160_11(ah)) {
	INIT_INI_ARRAY(&ah->iniAddac,
	ar5416Addac_9160_1_1);
	} else {
	INIT_INI_ARRAY(&ah->iniAddac, ar5416Addac_9160);
	}
	} else if (AR_SREV_9100_OR_LATER(ah)) {
	INIT_INI_ARRAY(&ah->iniModes, ar5416Modes_9100);
	INIT_INI_ARRAY(&ah->iniCommon, ar5416Common_9100);
	INIT_INI_ARRAY(&ah->iniAddac, ar5416Addac_9100);
	} else {
	INIT_INI_ARRAY(&ah->iniModes, ar5416Modes);
	INIT_INI_ARRAY(&ah->iniCommon, ar5416Common);
	INIT_INI_ARRAY(&ah->iniAddac, ar5416Addac);
	}

	if (!AR_SREV_9280_20_OR_LATER(ah)) {
	/* Common for AR5416, AR913x, AR9160 */
	INIT_INI_ARRAY(&ah->iniBB_RfGain, ar5416BB_RfGain);

	/* Common for AR913x, AR9160 */
	if (!AR_SREV_5416(ah))
	INIT_INI_ARRAY(&ah->iniBank6, ar5416Bank6TPC_9100);
	else
	INIT_INI_ARRAY(&ah->iniBank6, ar5416Bank6TPC);
	}

	/* iniAddac needs to be modified for these chips */
	if (AR_SREV_9160(ah) \|\| !AR_SREV_5416_22_OR_LATER(ah)) {
	struct ar5416IniArray *addac = &ah->iniAddac;
	u32 size = sizeof(u32) * addac->ia_rows * addac->ia_columns;
	u32 *data;

	data = devm_kzalloc(ah->dev, size, GFP_KERNEL);
	if (!data)
	return -ENOMEM;

	memcpy(data, addac->ia_array, size);
	addac->ia_array = data;

	if (!AR_SREV_5416_22_OR_LATER(ah)) {
	/* override CLKDRV value */
	INI_RA(addac, 31,1) = 0;
	}
	}
	if (AR_SREV_9287_11_OR_LATER(ah)) {
	INIT_INI_ARRAY(&ah->iniCckfirNormal,
	ar9287Common_normal_cck_fir_coeff_9287_1_1);
	INIT_INI_ARRAY(&ah->iniCckfirJapan2484,
	ar9287Common_japan_2484_cck_fir_coeff_9287_1_1);
	}
	return 0;
	}

	static void ar9280_20_hw_init_rxgain_ini(struct ath_hw *ah)
	{
	u32 rxgain_type;

	if (ah->eep_ops->get_eeprom(ah, EEP_MINOR_REV) >=
	AR5416_EEP_MINOR_VER_17) {
	rxgain_type = ah->eep_ops->get_eeprom(ah, EEP_RXGAIN_TYPE);

	if (rxgain_type == AR5416_EEP_RXGAIN_13DB_BACKOFF)
	INIT_INI_ARRAY(&ah->iniModesRxGain,
	ar9280Modes_backoff_13db_rxgain_9280_2);
	else if (rxgain_type == AR5416_EEP_RXGAIN_23DB_BACKOFF)
	INIT_INI_ARRAY(&ah->iniModesRxGain,
	ar9280Modes_backoff_23db_rxgain_9280_2);
	else
	INIT_INI_ARRAY(&ah->iniModesRxGain,
	ar9280Modes_original_rxgain_9280_2);
	} else {
	INIT_INI_ARRAY(&ah->iniModesRxGain,
	ar9280Modes_original_rxgain_9280_2);
	}
	}

	static void ar9280_20_hw_init_txgain_ini(struct ath_hw *ah, u32 txgain_type)
	{
	if (ah->eep_ops->get_eeprom(ah, EEP_MINOR_REV) >=
	AR5416_EEP_MINOR_VER_19) {
	if (txgain_type == AR5416_EEP_TXGAIN_HIGH_POWER)
	INIT_INI_ARRAY(&ah->iniModesTxGain,
	ar9280Modes_high_power_tx_gain_9280_2);
	else
	INIT_INI_ARRAY(&ah->iniModesTxGain,
	ar9280Modes_original_tx_gain_9280_2);
	} else {
	INIT_INI_ARRAY(&ah->iniModesTxGain,
	ar9280Modes_original_tx_gain_9280_2);
	}
	}

	static void ar9271_hw_init_txgain_ini(struct ath_hw *ah, u32 txgain_type)
	{
	if (txgain_type == AR5416_EEP_TXGAIN_HIGH_POWER)
	INIT_INI_ARRAY(&ah->iniModesTxGain,
	ar9271Modes_high_power_tx_gain_9271);
	else
	INIT_INI_ARRAY(&ah->iniModesTxGain,
	ar9271Modes_normal_power_tx_gain_9271);
	}

	static void ar9002_hw_init_mode_gain_regs(struct ath_hw *ah)
	{
	u32 txgain_type = ah->eep_ops->get_eeprom(ah, EEP_TXGAIN_TYPE);

	if (AR_SREV_9287_11_OR_LATER(ah))
	INIT_INI_ARRAY(&ah->iniModesRxGain,
	ar9287Modes_rx_gain_9287_1_1);
	else if (AR_SREV_9280_20(ah))
	ar9280_20_hw_init_rxgain_ini(ah);

	if (AR_SREV_9271(ah)) {
	ar9271_hw_init_txgain_ini(ah, txgain_type);
	} else if (AR_SREV_9287_11_OR_LATER(ah)) {
	INIT_INI_ARRAY(&ah->iniModesTxGain,
	ar9287Modes_tx_gain_9287_1_1);
	} else if (AR_SREV_9280_20(ah)) {
	ar9280_20_hw_init_txgain_ini(ah, txgain_type);
	} else if (AR_SREV_9285_12_OR_LATER(ah)) {
	/* txgain table */
	if (txgain_type == AR5416_EEP_TXGAIN_HIGH_POWER) {
	if (AR_SREV_9285E_20(ah)) {
	INIT_INI_ARRAY(&ah->iniModesTxGain,
	ar9285Modes_XE2_0_high_power);
	} else {
	INIT_INI_ARRAY(&ah->iniModesTxGain,
	ar9285Modes_high_power_tx_gain_9285_1_2);
	}
	} else {
	if (AR_SREV_9285E_20(ah)) {
	INIT_INI_ARRAY(&ah->iniModesTxGain,
	ar9285Modes_XE2_0_normal_power);
	} else {
	INIT_INI_ARRAY(&ah->iniModesTxGain,
	ar9285Modes_original_tx_gain_9285_1_2);
	}
	}
	}
	}

	/*
	* Helper for ASPM support.
	*
	* Disable PLL when in L0s as well as receiver clock when in L1.
	* This power saving option must be enabled through the SerDes.
	*
	* Programming the SerDes must go through the same 288 bit serial shift
	* register as the other analog registers. Hence the 9 writes.
	*/
	static void ar9002_hw_configpcipowersave(struct ath_hw *ah,
	bool power_off)
	{
	u8 i;
	u32 val;

	/* Nothing to do on restore for 11N */
	if (!power_off /* !restore */) {
	if (AR_SREV_9280_20_OR_LATER(ah)) {
	/*
	* AR9280 2.0 or later chips use SerDes values from the
	* initvals.h initialized depending on chipset during
	* __ath9k_hw_init()
	*/
	for (i = 0; i < ah->iniPcieSerdes.ia_rows; i++) {
	REG_WRITE(ah, INI_RA(&ah->iniPcieSerdes, i, 0),
	INI_RA(&ah->iniPcieSerdes, i, 1));
	}
	} else {
	ENABLE_REGWRITE_BUFFER(ah);

	REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00);
	REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);

	/* RX shut off when elecidle is asserted */
	REG_WRITE(ah, AR_PCIE_SERDES, 0x28000039);
	REG_WRITE(ah, AR_PCIE_SERDES, 0x53160824);
	REG_WRITE(ah, AR_PCIE_SERDES, 0xe5980579);

	/*
	* Ignore ah->ah_config.pcie_clock_req setting for
	* pre-AR9280 11n
	*/
	REG_WRITE(ah, AR_PCIE_SERDES, 0x001defff);

	REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
	REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
	REG_WRITE(ah, AR_PCIE_SERDES, 0x000e3007);

	/* Load the new settings */
	REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);

	REGWRITE_BUFFER_FLUSH(ah);
	}

	udelay(1000);
	}

	if (power_off) {
	/* clear bit 19 to disable L1 */
	REG_CLR_BIT(ah, AR_PCIE_PM_CTRL, AR_PCIE_PM_CTRL_ENA);

	val = REG_READ(ah, AR_WA);

	/*
	* Set PCIe workaround bits
	* In AR9280 and AR9285, bit 14 in WA register (disable L1)
	* should only be set when device enters D3 and be
	* cleared when device comes back to D0.
	*/
	if (ah->config.pcie_waen) {
	if (ah->config.pcie_waen & AR_WA_D3_L1_DISABLE)
	val \|= AR_WA_D3_L1_DISABLE;
	} else {
	if (AR_SREV_9285(ah) \|\| AR_SREV_9271(ah) \|\| AR_SREV_9287(ah)) {
	if (AR9285_WA_DEFAULT & AR_WA_D3_L1_DISABLE)
	val \|= AR_WA_D3_L1_DISABLE;
	} else if (AR_SREV_9280(ah)) {
	if (AR9280_WA_DEFAULT & AR_WA_D3_L1_DISABLE)
	val \|= AR_WA_D3_L1_DISABLE;
	}
	}

	if (AR_SREV_9280(ah) \|\| AR_SREV_9285(ah) \|\| AR_SREV_9287(ah)) {
	/*
	* Disable bit 6 and 7 before entering D3 to
	* prevent system hang.
	*/
	val &= ~(AR_WA_BIT6 \| AR_WA_BIT7);
	}

	if (AR_SREV_9280(ah))
	val \|= AR_WA_BIT22;

	if (AR_SREV_9285E_20(ah))
	val \|= AR_WA_BIT23;

	REG_WRITE(ah, AR_WA, val);
	} else {
	if (ah->config.pcie_waen) {
	val = ah->config.pcie_waen;
	val &= (~AR_WA_D3_L1_DISABLE);
	} else {
	if (AR_SREV_9285(ah) \|\| AR_SREV_9271(ah) \|\| AR_SREV_9287(ah)) {
	val = AR9285_WA_DEFAULT;
	val &= (~AR_WA_D3_L1_DISABLE);
	} else if (AR_SREV_9280(ah)) {
	/*
	* For AR9280 chips, bit 22 of 0x4004
	* needs to be set.
	*/
	val = AR9280_WA_DEFAULT;
	val &= (~AR_WA_D3_L1_DISABLE);
	} else {
	val = AR_WA_DEFAULT;
	}
	}

	/* WAR for ASPM system hang */
	if (AR_SREV_9285(ah) \|\| AR_SREV_9287(ah))
	val \|= (AR_WA_BIT6 \| AR_WA_BIT7);

	if (AR_SREV_9285E_20(ah))
	val \|= AR_WA_BIT23;

	REG_WRITE(ah, AR_WA, val);

	/* set bit 19 to allow forcing of pcie core into L1 state */
	REG_SET_BIT(ah, AR_PCIE_PM_CTRL, AR_PCIE_PM_CTRL_ENA);
	}
	}

	static int ar9002_hw_get_radiorev(struct ath_hw *ah)
	{
	u32 val;
	int i;

	ENABLE_REGWRITE_BUFFER(ah);

	REG_WRITE(ah, AR_PHY(0x36), 0x00007058);
	for (i = 0; i < 8; i++)
	REG_WRITE(ah, AR_PHY(0x20), 0x00010000);

	REGWRITE_BUFFER_FLUSH(ah);

	val = (REG_READ(ah, AR_PHY(256)) >> 24) & 0xff;
	val = ((val & 0xf0) >> 4) \| ((val & 0x0f) << 4);

	return ath9k_hw_reverse_bits(val, 8);
	}

	int ar9002_hw_rf_claim(struct ath_hw *ah)
	{
	u32 val;

	REG_WRITE(ah, AR_PHY(0), 0x00000007);

	val = ar9002_hw_get_radiorev(ah);
	switch (val & AR_RADIO_SREV_MAJOR) {
	case 0:
	val = AR_RAD5133_SREV_MAJOR;
	break;
	case AR_RAD5133_SREV_MAJOR:
	case AR_RAD5122_SREV_MAJOR:
	case AR_RAD2133_SREV_MAJOR:
	case AR_RAD2122_SREV_MAJOR:
	break;
	default:
	ath_err(ath9k_hw_common(ah),
	"Radio Chip Rev 0x%02X not supported\n",
	val & AR_RADIO_SREV_MAJOR);
	return -EOPNOTSUPP;
	}

	ah->hw_version.analog5GhzRev = val;

	return 0;
	}

	void ar9002_hw_enable_async_fifo(struct ath_hw *ah)
	{
	if (AR_SREV_9287_13_OR_LATER(ah)) {
	REG_SET_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
	AR_MAC_PCU_ASYNC_FIFO_REG3_DATAPATH_SEL);
	REG_SET_BIT(ah, AR_PHY_MODE, AR_PHY_MODE_ASYNCFIFO);
	REG_CLR_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
	AR_MAC_PCU_ASYNC_FIFO_REG3_SOFT_RESET);
	REG_SET_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
	AR_MAC_PCU_ASYNC_FIFO_REG3_SOFT_RESET);
	}
	}

	static void ar9002_hw_init_hang_checks(struct ath_hw *ah)
	{
	if (AR_SREV_9100(ah) \|\| AR_SREV_9160(ah)) {
	ah->config.hw_hang_checks \|= HW_BB_RIFS_HANG;
	ah->config.hw_hang_checks \|= HW_BB_DFS_HANG;
	}

	if (AR_SREV_9280(ah))
	ah->config.hw_hang_checks \|= HW_BB_RX_CLEAR_STUCK_HANG;

	if (AR_SREV_5416(ah) \|\| AR_SREV_9100(ah) \|\| AR_SREV_9160(ah))
	ah->config.hw_hang_checks \|= HW_MAC_HANG;
	}

	/* Sets up the AR5008/AR9001/AR9002 hardware familiy callbacks */
	int ar9002_hw_attach_ops(struct ath_hw *ah)
	{
	struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah);
	struct ath_hw_ops *ops = ath9k_hw_ops(ah);
	int ret;

	ret = ar9002_hw_init_mode_regs(ah);
	if (ret)
	return ret;

	priv_ops->init_mode_gain_regs = ar9002_hw_init_mode_gain_regs;
	priv_ops->init_hang_checks = ar9002_hw_init_hang_checks;

	ops->config_pci_powersave = ar9002_hw_configpcipowersave;

	ret = ar5008_hw_attach_phy_ops(ah);
	if (ret)
	return ret;

	if (AR_SREV_9280_20_OR_LATER(ah))
	ar9002_hw_attach_phy_ops(ah);

	ar9002_hw_attach_calib_ops(ah);
	ar9002_hw_attach_mac_ops(ah);
	return 0;
	}

	void ar9002_hw_load_ani_reg(struct ath_hw ah, struct ath9k_channel chan)
	{
	u32 modesIndex;
	int i;

	if (IS_CHAN_5GHZ(chan))
	modesIndex = IS_CHAN_HT40(chan) ? 2 : 1;
	else
	modesIndex = IS_CHAN_HT40(chan) ? 3 : 4;

	ENABLE_REGWRITE_BUFFER(ah);

	for (i = 0; i < ah->iniModes_9271_ANI_reg.ia_rows; i++) {
	u32 reg = INI_RA(&ah->iniModes_9271_ANI_reg, i, 0);
	u32 val = INI_RA(&ah->iniModes_9271_ANI_reg, i, modesIndex);
	u32 val_orig;

	if (reg == AR_PHY_CCK_DETECT) {
	val_orig = REG_READ(ah, reg);
	val &= AR_PHY_CCK_DETECT_WEAK_SIG_THR_CCK;
	val_orig &= ~AR_PHY_CCK_DETECT_WEAK_SIG_THR_CCK;

	REG_WRITE(ah, reg, val\|val_orig);
	} else
	REG_WRITE(ah, reg, val);
	}

	REGWRITE_BUFFER_FLUSH(ah);
	}