From: Felix Fietkau Date: Thu, 2 Dec 2010 09:27:06 +0000 (+0100) Subject: ath5k: Add a function to read chipset's MAC revision X-Git-Tag: v2.6.38-rc1~476^2~169^2^2~85 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e7aecd327d80b2f156b54769013aaccb2a20645a;p=platform%2Fkernel%2Flinux-exynos.git ath5k: Add a function to read chipset's MAC revision Add bus dependent revision read function which is used to determine chipset's MAC before hardware is initialized. Signed-off-by: Felix Fietkau Signed-off-by: Wojciech Dubowik Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/ath/ath5k/ath5k.h b/drivers/net/wireless/ath/ath5k/ath5k.h index 5d9fdc2..5e525eb 100644 --- a/drivers/net/wireless/ath/ath5k/ath5k.h +++ b/drivers/net/wireless/ath/ath5k/ath5k.h @@ -1046,6 +1046,7 @@ struct ath5k_hw { u32 ah_phy; u32 ah_mac_srev; u16 ah_mac_version; + u16 ah_mac_revision; u16 ah_phy_revision; u16 ah_radio_5ghz_revision; u16 ah_radio_2ghz_revision; @@ -1156,8 +1157,9 @@ void ath5k_hw_deinit(struct ath5k_hw *ah); int ath5k_sysfs_register(struct ath5k_softc *sc); void ath5k_sysfs_unregister(struct ath5k_softc *sc); -/*Chip id helper function */ +/*Chip id helper functions */ const char *ath5k_chip_name(enum ath5k_srev_type type, u_int16_t val); +int ath5k_hw_read_srev(struct ath5k_hw *ah); /* LED functions */ int ath5k_init_leds(struct ath5k_softc *sc); diff --git a/drivers/net/wireless/ath/ath5k/attach.c b/drivers/net/wireless/ath/ath5k/attach.c index 86f6fec..9dbc1fa 100644 --- a/drivers/net/wireless/ath/ath5k/attach.c +++ b/drivers/net/wireless/ath/ath5k/attach.c @@ -128,7 +128,8 @@ int ath5k_hw_init(struct ath5k_softc *sc) /* * Find the mac version */ - srev = ath5k_hw_reg_read(ah, AR5K_SREV); + ath5k_hw_read_srev(ah); + srev = ah->ah_mac_srev; if (srev < AR5K_SREV_AR5311) ah->ah_version = AR5K_AR5210; else if (srev < AR5K_SREV_AR5212) @@ -136,6 +137,10 @@ int ath5k_hw_init(struct ath5k_softc *sc) else ah->ah_version = AR5K_AR5212; + /* Get the MAC revision */ + ah->ah_mac_version = AR5K_REG_MS(srev, AR5K_SREV_VER); + ah->ah_mac_revision = AR5K_REG_MS(srev, AR5K_SREV_REV); + /* Fill the ath5k_hw struct with the needed functions */ ret = ath5k_hw_init_desc_functions(ah); if (ret) @@ -146,9 +151,7 @@ int ath5k_hw_init(struct ath5k_softc *sc) if (ret) goto err; - /* Get MAC, PHY and RADIO revisions */ - ah->ah_mac_srev = srev; - ah->ah_mac_version = AR5K_REG_MS(srev, AR5K_SREV_VER); + /* Get PHY and RADIO revisions */ ah->ah_phy_revision = ath5k_hw_reg_read(ah, AR5K_PHY_CHIP_ID) & 0xffffffff; ah->ah_radio_5ghz_revision = ath5k_hw_radio_revision(ah, diff --git a/drivers/net/wireless/ath/ath5k/pci.c b/drivers/net/wireless/ath/ath5k/pci.c index 3f26cf2..39f03312 100644 --- a/drivers/net/wireless/ath/ath5k/pci.c +++ b/drivers/net/wireless/ath/ath5k/pci.c @@ -100,6 +100,12 @@ bool ath5k_pci_eeprom_read(struct ath_common *common, u32 offset, u16 *data) return -ETIMEDOUT; } +int ath5k_hw_read_srev(struct ath5k_hw *ah) +{ + ah->ah_mac_srev = ath5k_hw_reg_read(ah, AR5K_SREV); + return 0; +} + /* Common ath_bus_opts structure */ static const struct ath_bus_ops ath_pci_bus_ops = { .ath_bus_type = ATH_PCI,