wifi: mt76: connac: add support to load firmware for mt7990

Add firmware download support. Note that mt7990 does not have WA and DSP
firmwares. This is a preliminary patch to support mt7990 chipset.

Co-developed-by: Peter Chiu <[email protected]>
Signed-off-by: Peter Chiu <[email protected]>
Signed-off-by: StanleyYP Wang <[email protected]>
Signed-off-by: Shayne Chen <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>

mt76_connac.h

@@ -232,9 +232,14 @@ static inline bool is_mt7992(struct mt76_dev *dev)
 	return mt76_chip(dev) == 0x7992;
 }
 
+static inline bool is_mt7990(struct mt76_dev *dev)
+{
+	return mt76_chip(dev) == 0x7993;
+}
+
 static inline bool is_mt799x(struct mt76_dev *dev)
 {
-	return is_mt7996(dev) || is_mt7992(dev);
+	return is_mt7996(dev) || is_mt7992(dev) || is_mt7990(dev);
 }
 
 static inline bool is_mt7622(struct mt76_dev *dev)

mt76_connac_mcu.c

@@ -67,8 +67,7 @@ int mt76_connac_mcu_init_download(struct mt76_dev *dev, u32 addr, u32 len,
 	if ((!is_connac_v1(dev) && addr == MCU_PATCH_ADDRESS) ||
 	    (is_mt7921(dev) && addr == 0x900000) ||
 	    (is_mt7925(dev) && (addr == 0x900000 || addr == 0xe0002800)) ||
-	    (is_mt7996(dev) && addr == 0x900000) ||
+	    (is_mt799x(dev) && addr == 0x900000))
-	    (is_mt7992(dev) && addr == 0x900000))
 		cmd = MCU_CMD(PATCH_START_REQ);
 	else
 		cmd = MCU_CMD(TARGET_ADDRESS_LEN_REQ);

mt7996/mcu.c

@@ -22,6 +22,9 @@
 			_fw = MT7992_##name;			\
 		}						\
 		break;						\
+	case MT7990_DEVICE_ID:					\
+		_fw = MT7990_##name;				\
+		break;						\
 	case MT7996_DEVICE_ID:						\
 	default:						\
 		switch ((_dev)->var.type) {			\
@@ -265,7 +268,7 @@ mt7996_mcu_send_message(struct mt76_dev *mdev, struct sk_buff *skb,
 
 	txd_len = cmd & __MCU_CMD_FIELD_UNI ? sizeof(*uni_txd) : sizeof(*mcu_txd);
 	txd = (__le32 *)skb_push(skb, txd_len);
-	if (test_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state))
+	if (test_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state) && mt7996_has_wa(dev))
 		qid = MT_MCUQ_WA;
 	else
 		qid = MT_MCUQ_WM;
@@ -3011,6 +3014,9 @@ static int mt7996_load_ram(struct mt7996_dev *dev)
 	if (ret)
 		return ret;
 
+	if (!mt7996_has_wa(dev))
+		return 0;
+
 	ret = __mt7996_load_ram(dev, "DSP", fw_name(dev, FIRMWARE_DSP),
 				MT7996_RAM_TYPE_DSP);
 	if (ret)
@@ -3021,10 +3027,9 @@ static int mt7996_load_ram(struct mt7996_dev *dev)
 }
 
 static int
-mt7996_firmware_state(struct mt7996_dev *dev, bool wa)
+mt7996_firmware_state(struct mt7996_dev *dev, u8 fw_state)
 {
-	u32 state = FIELD_PREP(MT_TOP_MISC_FW_STATE,
+	u32 state = FIELD_PREP(MT_TOP_MISC_FW_STATE, fw_state);
-			       wa ? FW_STATE_RDY : FW_STATE_FW_DOWNLOAD);
 
 	if (!mt76_poll_msec(dev, MT_TOP_MISC, MT_TOP_MISC_FW_STATE,
 			    state, 1000)) {
@@ -3056,13 +3061,14 @@ mt7996_mcu_restart(struct mt76_dev *dev)
 
 static int mt7996_load_firmware(struct mt7996_dev *dev)
 {
+	u8 fw_state;
 	int ret;
 
 	/* make sure fw is download state */
-	if (mt7996_firmware_state(dev, false)) {
+	if (mt7996_firmware_state(dev, FW_STATE_FW_DOWNLOAD)) {
 		/* restart firmware once */
 		mt7996_mcu_restart(&dev->mt76);
-		ret = mt7996_firmware_state(dev, false);
+		ret = mt7996_firmware_state(dev, FW_STATE_FW_DOWNLOAD);
 		if (ret) {
 			dev_err(dev->mt76.dev,
 				"Firmware is not ready for download\n");
@@ -3078,7 +3084,8 @@ static int mt7996_load_firmware(struct mt7996_dev *dev)
 	if (ret)
 		return ret;
 
-	ret = mt7996_firmware_state(dev, true);
+	fw_state = mt7996_has_wa(dev) ? FW_STATE_RDY : FW_STATE_NORMAL_TRX;
+	ret = mt7996_firmware_state(dev, fw_state);
 	if (ret)
 		return ret;
 
@@ -3248,7 +3255,7 @@ int mt7996_mcu_init(struct mt7996_dev *dev)
 void mt7996_mcu_exit(struct mt7996_dev *dev)
 {
 	mt7996_mcu_restart(&dev->mt76);
-	if (mt7996_firmware_state(dev, false)) {
+	if (mt7996_firmware_state(dev, FW_STATE_FW_DOWNLOAD)) {
 		dev_err(dev->mt76.dev, "Failed to exit mcu\n");
 		goto out;
 	}

mt7996/mt7996.h

@@ -34,6 +34,8 @@
 #define MT7996_DEVICE_ID_2		0x7991
 #define MT7992_DEVICE_ID		0x7992
 #define MT7992_DEVICE_ID_2		0x799a
+#define MT7990_DEVICE_ID		0x7993
+#define MT7990_DEVICE_ID_2		0x799b
 
 #define MT7996_FIRMWARE_WA		"mediatek/mt7996/mt7996_wa.bin"
 #define MT7996_FIRMWARE_WM		"mediatek/mt7996/mt7996_wm.bin"
@@ -55,6 +57,11 @@
 #define MT7992_FIRMWARE_DSP_23		"mediatek/mt7996/mt7992_dsp_23.bin"
 #define MT7992_ROM_PATCH_23		"mediatek/mt7996/mt7992_rom_patch_23.bin"
 
+#define MT7990_FIRMWARE_WA		""
+#define MT7990_FIRMWARE_WM		"mediatek/mt7996/mt7990_wm.bin"
+#define MT7990_FIRMWARE_DSP		""
+#define MT7990_ROM_PATCH		"mediatek/mt7996/mt7990_rom_patch.bin"
+
 #define MT7996_EEPROM_DEFAULT		"mediatek/mt7996/mt7996_eeprom.bin"
 #define MT7996_EEPROM_DEFAULT_INT	"mediatek/mt7996/mt7996_eeprom_2i5i6i.bin"
 #define MT7996_EEPROM_DEFAULT_233	"mediatek/mt7996/mt7996_eeprom_233.bin"
@@ -709,6 +716,11 @@ static inline u16 mt7996_rx_chainmask(struct mt7996_phy *phy)
 	return tx_chainmask | (BIT(fls(tx_chainmask)) * phy->has_aux_rx);
 }
 
+static inline bool mt7996_has_wa(struct mt7996_dev *dev)
+{
+	return !is_mt7990(&dev->mt76);
+}
+
 void mt7996_mac_init(struct mt7996_dev *dev);
 u32 mt7996_mac_wtbl_lmac_addr(struct mt7996_dev *dev, u16 wcid, u8 dw);
 bool mt7996_mac_wtbl_update(struct mt7996_dev *dev, int idx, u32 mask);

mt7996/pci.c

@@ -257,3 +257,5 @@ MODULE_FIRMWARE(MT7992_FIRMWARE_WA);
 MODULE_FIRMWARE(MT7992_FIRMWARE_WM);
 MODULE_FIRMWARE(MT7992_FIRMWARE_DSP);
 MODULE_FIRMWARE(MT7992_ROM_PATCH);
+MODULE_FIRMWARE(MT7990_FIRMWARE_WM);
+MODULE_FIRMWARE(MT7990_ROM_PATCH);