From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from bombadil.infradead.org ([18.85.46.34]:32964 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757404Ab0DOVjq (ORCPT ); Thu, 15 Apr 2010 17:39:46 -0400 From: "Luis R. Rodriguez" To: linville@tuxdriver.com Cc: linux-wireless@vger.kernel.org, Felix Fietkau Subject: [PATCH v3 77/97] ath9k_hw: Update ath9k_hw_set_dma for AR9300 Date: Thu, 15 Apr 2010 17:39:22 -0400 Message-Id: <1271367582-992-78-git-send-email-lrodriguez@atheros.com> In-Reply-To: <1271367582-992-1-git-send-email-lrodriguez@atheros.com> References: <1271367582-992-1-git-send-email-lrodriguez@atheros.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: From: Felix Fietkau Signed-off-by: Felix Fietkau --- drivers/net/wireless/ath/ath9k/hw.c | 18 +++++++++++++++--- drivers/net/wireless/ath/ath9k/reg.h | 6 ++++++ 2 files changed, 21 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index de7ee90..953911d 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -837,13 +837,16 @@ u32 ath9k_regd_get_ctl(struct ath_regulatory *reg, struct ath9k_channel *chan) static inline void ath9k_hw_set_dma(struct ath_hw *ah) { + struct ath_common *common = ath9k_hw_common(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); + if (!AR_SREV_9300_20_OR_LATER(ah)) { + 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 @@ -856,7 +859,8 @@ static inline void ath9k_hw_set_dma(struct ath_hw *ah) * 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); + if (!AR_SREV_9300_20_OR_LATER(ah)) + REG_RMW_FIELD(ah, AR_TXCFG, AR_FTRIG, ah->tx_trig_level); /* * let mac dma writes be in 128 byte chunks @@ -869,6 +873,14 @@ static inline void ath9k_hw_set_dma(struct ath_hw *ah) */ REG_WRITE(ah, AR_RXFIFO_CFG, 0x200); + if (AR_SREV_9300_20_OR_LATER(ah)) { + REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_HP, 0x1); + REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_LP, 0x1); + + ath9k_hw_set_rx_bufsize(ah, common->rx_bufsize - + ah->caps.rx_status_len); + } + /* * reduce the number of usable entries in PCU TXBUF to avoid * wrap around issues. diff --git a/drivers/net/wireless/ath/ath9k/reg.h b/drivers/net/wireless/ath/ath9k/reg.h index 12f1621..2ca478c 100644 --- a/drivers/net/wireless/ath/ath9k/reg.h +++ b/drivers/net/wireless/ath/ath9k/reg.h @@ -39,6 +39,12 @@ #define AR_CFG_PCI_MASTER_REQ_Q_THRESH 0x00060000 #define AR_CFG_PCI_MASTER_REQ_Q_THRESH_S 17 +#define AR_RXBP_THRESH 0x0018 +#define AR_RXBP_THRESH_HP 0x0000000f +#define AR_RXBP_THRESH_HP_S 0 +#define AR_RXBP_THRESH_LP 0x00003f00 +#define AR_RXBP_THRESH_LP_S 8 + #define AR_MIRT 0x0020 #define AR_MIRT_VAL 0x0000ffff #define AR_MIRT_VAL_S 16 -- 1.6.3.3