Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 320 insertions, 0 deletions

diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/pci_init.c b/drivers/net/wireless/mediatek/mt76/mt76x2/pci_init.c
new file mode 100644
index 0000000000..e38e8e5685
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/mt76x2/pci_init.c
@@ -0,0 +1,320 @@
+// SPDX-License-Identifier: ISC
+/*
+ * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
+ */
+
+#include <linux/delay.h>
+#include "mt76x2.h"
+#include "eeprom.h"
+#include "mcu.h"
+#include "../mt76x02_mac.h"
+
+static void
+mt76x2_mac_pbf_init(struct mt76x02_dev *dev)
+{
+	u32 val;
+
+	val = MT_PBF_SYS_CTRL_MCU_RESET |
+	      MT_PBF_SYS_CTRL_DMA_RESET |
+	      MT_PBF_SYS_CTRL_MAC_RESET |
+	      MT_PBF_SYS_CTRL_PBF_RESET |
+	      MT_PBF_SYS_CTRL_ASY_RESET;
+
+	mt76_set(dev, MT_PBF_SYS_CTRL, val);
+	mt76_clear(dev, MT_PBF_SYS_CTRL, val);
+
+	mt76_wr(dev, MT_PBF_TX_MAX_PCNT, 0xefef3f1f);
+	mt76_wr(dev, MT_PBF_RX_MAX_PCNT, 0xfebf);
+}
+
+static void
+mt76x2_fixup_xtal(struct mt76x02_dev *dev)
+{
+	u16 eep_val;
+	s8 offset = 0;
+
+	eep_val = mt76x02_eeprom_get(dev, MT_EE_XTAL_TRIM_2);
+
+	offset = eep_val & 0x7f;
+	if ((eep_val & 0xff) == 0xff)
+		offset = 0;
+	else if (eep_val & 0x80)
+		offset = 0 - offset;
+
+	eep_val >>= 8;
+	if (eep_val == 0x00 || eep_val == 0xff) {
+		eep_val = mt76x02_eeprom_get(dev, MT_EE_XTAL_TRIM_1);
+		eep_val &= 0xff;
+
+		if (eep_val == 0x00 || eep_val == 0xff)
+			eep_val = 0x14;
+	}
+
+	eep_val &= 0x7f;
+	mt76_rmw_field(dev, MT_XO_CTRL5, MT_XO_CTRL5_C2_VAL, eep_val + offset);
+	mt76_set(dev, MT_XO_CTRL6, MT_XO_CTRL6_C2_CTRL);
+
+	eep_val = mt76x02_eeprom_get(dev, MT_EE_NIC_CONF_2);
+	switch (FIELD_GET(MT_EE_NIC_CONF_2_XTAL_OPTION, eep_val)) {
+	case 0:
+		mt76_wr(dev, MT_XO_CTRL7, 0x5c1fee80);
+		break;
+	case 1:
+		mt76_wr(dev, MT_XO_CTRL7, 0x5c1feed0);
+		break;
+	default:
+		break;
+	}
+}
+
+int mt76x2_mac_reset(struct mt76x02_dev *dev, bool hard)
+{
+	const u8 *macaddr = dev->mphy.macaddr;
+	u32 val;
+	int i, k;
+
+	if (!mt76x02_wait_for_mac(&dev->mt76))
+		return -ETIMEDOUT;
+
+	val = mt76_rr(dev, MT_WPDMA_GLO_CFG);
+
+	val &= ~(MT_WPDMA_GLO_CFG_TX_DMA_EN |
+		 MT_WPDMA_GLO_CFG_TX_DMA_BUSY |
+		 MT_WPDMA_GLO_CFG_RX_DMA_EN |
+		 MT_WPDMA_GLO_CFG_RX_DMA_BUSY |
+		 MT_WPDMA_GLO_CFG_DMA_BURST_SIZE);
+	val |= FIELD_PREP(MT_WPDMA_GLO_CFG_DMA_BURST_SIZE, 3);
+
+	mt76_wr(dev, MT_WPDMA_GLO_CFG, val);
+
+	mt76x2_mac_pbf_init(dev);
+	mt76_write_mac_initvals(dev);
+	mt76x2_fixup_xtal(dev);
+
+	mt76_clear(dev, MT_MAC_SYS_CTRL,
+		   MT_MAC_SYS_CTRL_RESET_CSR |
+		   MT_MAC_SYS_CTRL_RESET_BBP);
+
+	if (is_mt7612(dev))
+		mt76_clear(dev, MT_COEXCFG0, MT_COEXCFG0_COEX_EN);
+
+	mt76_set(dev, MT_EXT_CCA_CFG, 0x0000f000);
+	mt76_clear(dev, MT_TX_ALC_CFG_4, BIT(31));
+
+	mt76_wr(dev, MT_RF_BYPASS_0, 0x06000000);
+	mt76_wr(dev, MT_RF_SETTING_0, 0x08800000);
+	usleep_range(5000, 10000);
+	mt76_wr(dev, MT_RF_BYPASS_0, 0x00000000);
+
+	mt76_wr(dev, MT_MCU_CLOCK_CTL, 0x1401);
+	mt76_clear(dev, MT_FCE_L2_STUFF, MT_FCE_L2_STUFF_WR_MPDU_LEN_EN);
+
+	mt76x02_mac_setaddr(dev, macaddr);
+	mt76x02e_init_beacon_config(dev);
+	if (!hard)
+		return 0;
+
+	for (i = 0; i < 256 / 32; i++)
+		mt76_wr(dev, MT_WCID_DROP_BASE + i * 4, 0);
+
+	for (i = 0; i < 256; i++) {
+		mt76x02_mac_wcid_setup(dev, i, 0, NULL);
+		mt76_wr(dev, MT_WCID_TX_RATE(i), 0);
+		mt76_wr(dev, MT_WCID_TX_RATE(i) + 4, 0);
+	}
+
+	for (i = 0; i < MT_MAX_VIFS; i++)
+		mt76x02_mac_wcid_setup(dev, MT_VIF_WCID(i), i, NULL);
+
+	for (i = 0; i < 16; i++)
+		for (k = 0; k < 4; k++)
+			mt76x02_mac_shared_key_setup(dev, i, k, NULL);
+
+	for (i = 0; i < 16; i++)
+		mt76_rr(dev, MT_TX_STAT_FIFO);
+
+	mt76x02_set_tx_ackto(dev);
+
+	return 0;
+}
+
+static void
+mt76x2_power_on_rf_patch(struct mt76x02_dev *dev)
+{
+	mt76_set(dev, 0x10130, BIT(0) | BIT(16));
+	udelay(1);
+
+	mt76_clear(dev, 0x1001c, 0xff);
+	mt76_set(dev, 0x1001c, 0x30);
+
+	mt76_wr(dev, 0x10014, 0x484f);
+	udelay(1);
+
+	mt76_set(dev, 0x10130, BIT(17));
+	udelay(125);
+
+	mt76_clear(dev, 0x10130, BIT(16));
+	udelay(50);
+
+	mt76_set(dev, 0x1014c, BIT(19) | BIT(20));
+}
+
+static void
+mt76x2_power_on_rf(struct mt76x02_dev *dev, int unit)
+{
+	int shift = unit ? 8 : 0;
+
+	/* Enable RF BG */
+	mt76_set(dev, 0x10130, BIT(0) << shift);
+	udelay(10);
+
+	/* Enable RFDIG LDO/AFE/ABB/ADDA */
+	mt76_set(dev, 0x10130, (BIT(1) | BIT(3) | BIT(4) | BIT(5)) << shift);
+	udelay(10);
+
+	/* Switch RFDIG power to internal LDO */
+	mt76_clear(dev, 0x10130, BIT(2) << shift);
+	udelay(10);
+
+	mt76x2_power_on_rf_patch(dev);
+
+	mt76_set(dev, 0x530, 0xf);
+}
+
+static void
+mt76x2_power_on(struct mt76x02_dev *dev)
+{
+	u32 val;
+
+	/* Turn on WL MTCMOS */
+	mt76_set(dev, MT_WLAN_MTC_CTRL, MT_WLAN_MTC_CTRL_MTCMOS_PWR_UP);
+
+	val = MT_WLAN_MTC_CTRL_STATE_UP |
+	      MT_WLAN_MTC_CTRL_PWR_ACK |
+	      MT_WLAN_MTC_CTRL_PWR_ACK_S;
+
+	mt76_poll(dev, MT_WLAN_MTC_CTRL, val, val, 1000);
+
+	mt76_clear(dev, MT_WLAN_MTC_CTRL, 0x7f << 16);
+	udelay(10);
+
+	mt76_clear(dev, MT_WLAN_MTC_CTRL, 0xf << 24);
+	udelay(10);
+
+	mt76_set(dev, MT_WLAN_MTC_CTRL, 0xf << 24);
+	mt76_clear(dev, MT_WLAN_MTC_CTRL, 0xfff);
+
+	/* Turn on AD/DA power down */
+	mt76_clear(dev, 0x11204, BIT(3));
+
+	/* WLAN function enable */
+	mt76_set(dev, 0x10080, BIT(0));
+
+	/* Release BBP software reset */
+	mt76_clear(dev, 0x10064, BIT(18));
+
+	mt76x2_power_on_rf(dev, 0);
+	mt76x2_power_on_rf(dev, 1);
+}
+
+int mt76x2_resume_device(struct mt76x02_dev *dev)
+{
+	int err;
+
+	mt76x02_dma_disable(dev);
+	mt76x2_reset_wlan(dev, true);
+	mt76x2_power_on(dev);
+
+	err = mt76x2_mac_reset(dev, true);
+	if (err)
+		return err;
+
+	mt76x02_mac_start(dev);
+
+	return mt76x2_mcu_init(dev);
+}
+
+static int mt76x2_init_hardware(struct mt76x02_dev *dev)
+{
+	int ret;
+
+	mt76x02_dma_disable(dev);
+	mt76x2_reset_wlan(dev, true);
+	mt76x2_power_on(dev);
+
+	ret = mt76x2_eeprom_init(dev);
+	if (ret)
+		return ret;
+
+	ret = mt76x2_mac_reset(dev, true);
+	if (ret)
+		return ret;
+
+	dev->mt76.rxfilter = mt76_rr(dev, MT_RX_FILTR_CFG);
+
+	ret = mt76x02_dma_init(dev);
+	if (ret)
+		return ret;
+
+	set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
+	mt76x02_mac_start(dev);
+
+	ret = mt76x2_mcu_init(dev);
+	if (ret)
+		return ret;
+
+	mt76x2_mac_stop(dev, false);
+
+	return 0;
+}
+
+void mt76x2_stop_hardware(struct mt76x02_dev *dev)
+{
+	cancel_delayed_work_sync(&dev->cal_work);
+	cancel_delayed_work_sync(&dev->mphy.mac_work);
+	cancel_delayed_work_sync(&dev->wdt_work);
+	clear_bit(MT76_RESTART, &dev->mphy.state);
+	mt76x02_mcu_set_radio_state(dev, false);
+	mt76x2_mac_stop(dev, false);
+}
+
+void mt76x2_cleanup(struct mt76x02_dev *dev)
+{
+	tasklet_disable(&dev->dfs_pd.dfs_tasklet);
+	tasklet_disable(&dev->mt76.pre_tbtt_tasklet);
+	mt76x2_stop_hardware(dev);
+	mt76_dma_cleanup(&dev->mt76);
+	mt76x02_mcu_cleanup(dev);
+}
+
+int mt76x2_register_device(struct mt76x02_dev *dev)
+{
+	int ret;
+
+	INIT_DELAYED_WORK(&dev->cal_work, mt76x2_phy_calibrate);
+	ret = mt76x02_init_device(dev);
+	if (ret)
+		return ret;
+
+	ret = mt76x2_init_hardware(dev);
+	if (ret)
+		return ret;
+
+	mt76x02_config_mac_addr_list(dev);
+
+	ret = mt76_register_device(&dev->mt76, true, mt76x02_rates,
+				   ARRAY_SIZE(mt76x02_rates));
+	if (ret)
+		goto fail;
+
+	mt76x02_init_debugfs(dev);
+	mt76x2_init_txpower(dev, &dev->mphy.sband_2g.sband);
+	mt76x2_init_txpower(dev, &dev->mphy.sband_5g.sband);
+
+	return 0;
+
+fail:
+	mt76x2_stop_hardware(dev);
+	return ret;
+}
+