From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/drivers/net/wireless/ath/ath9k/ar9002_hw.c | 456 ++++++++++++++++++++++ 1 file changed, 456 insertions(+) create mode 100644 kernel/drivers/net/wireless/ath/ath9k/ar9002_hw.c (limited to 'kernel/drivers/net/wireless/ath/ath9k/ar9002_hw.c') diff --git a/kernel/drivers/net/wireless/ath/ath9k/ar9002_hw.c b/kernel/drivers/net/wireless/ath/ath9k/ar9002_hw.c new file mode 100644 index 000000000..d480d2f3e --- /dev/null +++ b/kernel/drivers/net/wireless/ath/ath9k/ar9002_hw.c @@ -0,0 +1,456 @@ +/* + * 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 +#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); +} -- cgit 1.2.3-korg