From d86d6efa7214c2853ac2ae51d4a0012af6258f22 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Tue, 25 Jun 2019 12:25:25 +0200 Subject: [PATCH] mt76x0: fix RF frontend initialization for external PA When loading EEPROM data from flash, the RF frontend settings need to be initialized from flash data. Without this, the chip loads the wrong values from its internal eFuse ROM. Signed-off-by: Felix Fietkau --- mt76x0/phy.c | 13 +++++++------ mt76x02_eeprom.h | 1 + mt76x02_regs.h | 3 +++ 3 files changed, 11 insertions(+), 6 deletions(-) diff --git a/mt76x0/phy.c b/mt76x0/phy.c index 1fd22eb8..610819b4 100644 --- a/mt76x0/phy.c +++ b/mt76x0/phy.c @@ -430,15 +430,15 @@ mt76x0_phy_set_chan_bbp_params(struct mt76x02_dev *dev, u16 rf_bw_band) static void mt76x0_phy_ant_select(struct mt76x02_dev *dev) { u16 ee_ant = mt76x02_eeprom_get(dev, MT_EE_ANTENNA); + u16 ee_cfg1 = mt76x02_eeprom_get(dev, MT_EE_CFG1_INIT); u16 nic_conf2 = mt76x02_eeprom_get(dev, MT_EE_NIC_CONF_2); - u32 wlan, coex3, cmb; + u32 wlan, coex3; bool ant_div; wlan = mt76_rr(dev, MT_WLAN_FUN_CTRL); - cmb = mt76_rr(dev, MT_CMB_CTRL); coex3 = mt76_rr(dev, MT_COEXCFG3); - cmb &= ~(BIT(14) | BIT(12)); + ee_ant &= ~(BIT(14) | BIT(12)); wlan &= ~(BIT(6) | BIT(5)); coex3 &= ~GENMASK(5, 2); @@ -447,7 +447,7 @@ static void mt76x0_phy_ant_select(struct mt76x02_dev *dev) ant_div = !(nic_conf2 & MT_EE_NIC_CONF_2_ANT_OPT) && (nic_conf2 & MT_EE_NIC_CONF_2_ANT_DIV); if (ant_div) - cmb |= BIT(12); + ee_ant |= BIT(12); else coex3 |= BIT(4); coex3 |= BIT(3); @@ -464,10 +464,11 @@ static void mt76x0_phy_ant_select(struct mt76x02_dev *dev) } if (is_mt7630(dev)) - cmb |= BIT(14) | BIT(11); + ee_ant |= BIT(14) | BIT(11); mt76_wr(dev, MT_WLAN_FUN_CTRL, wlan); - mt76_wr(dev, MT_CMB_CTRL, cmb); + mt76_rmw(dev, MT_CMB_CTRL, GENMASK(15, 0), ee_ant); + mt76_rmw(dev, MT_CSR_EE_CFG1, GENMASK(15, 0), ee_cfg1); mt76_clear(dev, MT_COEXCFG0, BIT(2)); mt76_wr(dev, MT_COEXCFG3, coex3); } diff --git a/mt76x02_eeprom.h b/mt76x02_eeprom.h index e3442bc4..0ba536de 100644 --- a/mt76x02_eeprom.h +++ b/mt76x02_eeprom.h @@ -26,6 +26,7 @@ enum mt76x02_eeprom_field { MT_EE_MAC_ADDR = 0x004, MT_EE_PCI_ID = 0x00A, MT_EE_ANTENNA = 0x022, + MT_EE_CFG1_INIT = 0x024, MT_EE_NIC_CONF_0 = 0x034, MT_EE_NIC_CONF_1 = 0x036, MT_EE_COUNTRY_REGION_5GHZ = 0x038, diff --git a/mt76x02_regs.h b/mt76x02_regs.h index 2ce05b54..ea783396 100644 --- a/mt76x02_regs.h +++ b/mt76x02_regs.h @@ -66,6 +66,9 @@ #define MT_WLAN_FUN_CTRL_GPIO_OUT GENMASK(23, 16) /* MT76x0 */ #define MT_WLAN_FUN_CTRL_GPIO_OUT_EN GENMASK(31, 24) /* MT76x0 */ +/* MT76x0 */ +#define MT_CSR_EE_CFG1 0x0104 + #define MT_XO_CTRL0 0x0100 #define MT_XO_CTRL1 0x0104 #define MT_XO_CTRL2 0x0108