Use mainline driver for WiFi on Flat S 2022 (REVPI-2882)

Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt

@@ -1,4 +1,4 @@
-Marvell 8787/8897/8997 (sd8787/sd8897/sd8997/pcie8997) SDIO/PCIE devices
+Marvell 8787/8897/8978/8997 (sd8787/sd8897/sd8978/sd8997/pcie8997) SDIO/PCIE devices
 ------
 
 This node provides properties for controlling the Marvell SDIO/PCIE wireless device.
@@ -10,7 +10,9 @@ Required properties:
   - compatible : should be one of the following:
 	* "marvell,sd8787"
 	* "marvell,sd8897"
+	* "marvell,sd8978"
 	* "marvell,sd8997"
+	* "nxp,iw416"
 	* "pci11ab,2b42"
 	* "pci1b4b,2b42"
 

arch/arm/boot/dts/overlays/revpi-flat-s-2022-overlay.dts

@@ -37,8 +37,9 @@
 			};
 
 			wlan_pwrseq: wlan_pwrseq {
-				compatible = "mmc-pwrseq-simple";
-				reset-gpios = <&expander 12 GPIO_ACTIVE_LOW>;
+				compatible = "mmc-pwrseq-sd8787";
+				reset-gpios = <&expander 10 GPIO_ACTIVE_HIGH>;
+				powerdown-gpios = <&expander 12 GPIO_ACTIVE_HIGH>;
 			};
 
 			leds {
@@ -345,14 +346,10 @@
 			mmc-pwrseq = <&wlan_pwrseq>;
 			status = "okay";
 
-			sdxxx-wlan {
-				cfg80211_wext = <0xf>;
-				cal_data_cfg = "none";
-				max_vir_bss=<1>;
-				ps_mode=<1>;
-				auto_ds=<1>;
-				host_mlme=<1>;
-				fw_name="nxp/sdiouartiw416_combo_v0.bin";
+			wlan0: wifi@1 {
+				compatible = "nxp,iw416";
+				reg = <1>;
+				status = "okay";
 			};
 		};
 	};

arch/arm/configs/revpi-v7_defconfig

@@ -582,6 +582,7 @@ CONFIG_LIBERTAS_THINFIRM=m
 CONFIG_LIBERTAS_THINFIRM_USB=m
 CONFIG_MWIFIEX=m
 CONFIG_MWIFIEX_SDIO=m
+CONFIG_PWRSEQ_SD8787=y
 CONFIG_MT7601U=m
 CONFIG_MT76x0U=m
 CONFIG_MT76x2U=m

arch/arm/configs/revpi-v7l_defconfig

@@ -597,6 +597,7 @@ CONFIG_LIBERTAS_THINFIRM=m
 CONFIG_LIBERTAS_THINFIRM_USB=m
 CONFIG_MWIFIEX=m
 CONFIG_MWIFIEX_SDIO=m
+CONFIG_PWRSEQ_SD8787=y
 CONFIG_MT7601U=m
 CONFIG_MT76x0U=m
 CONFIG_MT76x2U=m

arch/arm64/configs/revpi-v8_defconfig

@@ -599,6 +599,7 @@ CONFIG_LIBERTAS_THINFIRM=m
 CONFIG_LIBERTAS_THINFIRM_USB=m
 CONFIG_MWIFIEX=m
 CONFIG_MWIFIEX_SDIO=m
+CONFIG_PWRSEQ_SD8787=y
 CONFIG_MT7601U=m
 CONFIG_MT76x0U=m
 CONFIG_MT76x2U=m

drivers/mmc/core/Kconfig

@@ -15,7 +15,7 @@ config PWRSEQ_EMMC
 
 config PWRSEQ_SD8787
 	tristate "HW reset support for SD8787 BT + Wifi module"
-	depends on OF && (MWIFIEX || BT_MRVL_SDIO || LIBERTAS_SDIO)
+	depends on OF && (MWIFIEX != n || BT_MRVL_SDIO != n || LIBERTAS_SDIO != n || WILC1000_SDIO != n)
 	help
 	  This selects hardware reset support for the SD8787 BT + Wifi
 	  module. By default this option is set to n.

drivers/mmc/host/bcm2835-mmc.c

@@ -1475,7 +1475,9 @@ static int bcm2835_mmc_probe(struct platform_device *pdev)
 	}
 
 	if (node) {
-		mmc_of_parse(mmc);
+		ret = mmc_of_parse(mmc);
+		if (ret)
+			goto err;
 
 		/* Read any custom properties */
 		of_property_read_u32(node,

drivers/net/wireless/marvell/mwifiex/Kconfig

@@ -10,13 +10,14 @@ config MWIFIEX
 	  mwifiex.
 
 config MWIFIEX_SDIO
-	tristate "Marvell WiFi-Ex Driver for SD8786/SD8787/SD8797/SD8887/SD8897/SD8977/SD8987/SD8997"
+	tristate "Marvell WiFi-Ex Driver for SD8786/SD8787/SD8797/SD8887/SD8897/SD8977/SD8978/SD8987/SD8997"
 	depends on MWIFIEX && MMC
 	select FW_LOADER
 	select WANT_DEV_COREDUMP
 	help
 	  This adds support for wireless adapters based on Marvell
-	  8786/8787/8797/8887/8897/8977/8987/8997 chipsets with SDIO interface.
+	  8786/8787/8797/8887/8897/8977/8978/8987/8997 chipsets with
+	  SDIO interface. SD8978 is also known as NXP IW416.
 
 	  If you choose to build it as a module, it will be called
 	  mwifiex_sdio.

drivers/net/wireless/marvell/mwifiex/cmdevt.c

@@ -1598,6 +1598,11 @@ int mwifiex_ret_get_hw_spec(struct mwifiex_private *priv,
 						    api_rev->major_ver,
 						    api_rev->minor_ver);
 					break;
+				case FW_HOTFIX_VER_ID:
+					mwifiex_dbg(adapter, INFO,
+						    "Firmware hotfix version %d\n",
+						    api_rev->major_ver);
+					break;
 				default:
 					mwifiex_dbg(adapter, FATAL,
 						    "Unknown api_id: %d\n",

drivers/net/wireless/marvell/mwifiex/fw.h

@@ -1055,6 +1055,7 @@ enum API_VER_ID {
 	FW_API_VER_ID = 2,
 	UAP_FW_API_VER_ID = 3,
 	CHANRPT_API_VER_ID = 4,
+	FW_HOTFIX_VER_ID = 5,
 };
 
 struct hw_spec_api_rev {

drivers/net/wireless/marvell/mwifiex/sdio.c

@@ -182,6 +182,9 @@ static const struct mwifiex_sdio_card_reg mwifiex_reg_sd8997 = {
 	.host_int_rsr_reg = 0x4,
 	.host_int_status_reg = 0x0C,
 	.host_int_mask_reg = 0x08,
+	.host_strap_reg = 0xF4,
+	.host_strap_mask = 0x01,
+	.host_strap_value = 0x00,
 	.status_reg_0 = 0xE8,
 	.status_reg_1 = 0xE9,
 	.sdio_int_mask = 0xff,
@@ -272,7 +275,7 @@ static const struct mwifiex_sdio_card_reg mwifiex_reg_sd8887 = {
 				 0x68, 0x69, 0x6a},
 };
 
-static const struct mwifiex_sdio_card_reg mwifiex_reg_sd8987 = {
+static const struct mwifiex_sdio_card_reg mwifiex_reg_sd89xx = {
 	.start_rd_port = 0,
 	.start_wr_port = 0,
 	.base_0_reg = 0xF8,
@@ -283,6 +286,9 @@ static const struct mwifiex_sdio_card_reg mwifiex_reg_sd8987 = {
 	.host_int_rsr_reg = 0x4,
 	.host_int_status_reg = 0x0C,
 	.host_int_mask_reg = 0x08,
+	.host_strap_reg = 0xF4,
+	.host_strap_mask = 0x01,
+	.host_strap_value = 0x00,
 	.status_reg_0 = 0xE8,
 	.status_reg_1 = 0xE9,
 	.sdio_int_mask = 0xff,
@@ -400,6 +406,22 @@ static const struct mwifiex_sdio_device mwifiex_sdio_sd8977 = {
 	.can_ext_scan = true,
 };
 
+static const struct mwifiex_sdio_device mwifiex_sdio_sd8978 = {
+	.firmware_sdiouart = SD8978_SDIOUART_FW_NAME,
+	.reg = &mwifiex_reg_sd89xx,
+	.max_ports = 32,
+	.mp_agg_pkt_limit = 16,
+	.tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K,
+	.mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX,
+	.mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX,
+	.supports_sdio_new_mode = true,
+	.has_control_mask = false,
+	.can_dump_fw = true,
+	.fw_dump_enh = true,
+	.can_auto_tdls = false,
+	.can_ext_scan = true,
+};
+
 static const struct mwifiex_sdio_device mwifiex_sdio_sd8997 = {
 	.firmware = SD8997_DEFAULT_FW_NAME,
 	.reg = &mwifiex_reg_sd8997,
@@ -433,7 +455,7 @@ static const struct mwifiex_sdio_device mwifiex_sdio_sd8887 = {
 
 static const struct mwifiex_sdio_device mwifiex_sdio_sd8987 = {
 	.firmware = SD8987_DEFAULT_FW_NAME,
-	.reg = &mwifiex_reg_sd8987,
+	.reg = &mwifiex_reg_sd89xx,
 	.max_ports = 32,
 	.mp_agg_pkt_limit = 16,
 	.tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K,
@@ -485,8 +507,11 @@ static struct memory_type_mapping mem_type_mapping_tbl[] = {
 };
 
 static const struct of_device_id mwifiex_sdio_of_match_table[] = {
+	{ .compatible = "marvell,sd8787" },
 	{ .compatible = "marvell,sd8897" },
+	{ .compatible = "marvell,sd8978" },
 	{ .compatible = "marvell,sd8997" },
+	{ .compatible = "nxp,iw416" },
 	{ }
 };
 
@@ -536,6 +561,7 @@ mwifiex_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id)
 		struct mwifiex_sdio_device *data = (void *)id->driver_data;
 
 		card->firmware = data->firmware;
+		card->firmware_sdiouart = data->firmware_sdiouart;
 		card->reg = data->reg;
 		card->max_ports = data->max_ports;
 		card->mp_agg_pkt_limit = data->mp_agg_pkt_limit;
@@ -923,6 +949,8 @@ static const struct sdio_device_id mwifiex_ids[] = {
 		.driver_data = (unsigned long)&mwifiex_sdio_sd8801},
 	{SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8977_WLAN),
 		.driver_data = (unsigned long)&mwifiex_sdio_sd8977},
+	{SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8978_WLAN),
+		.driver_data = (unsigned long)&mwifiex_sdio_sd8978},
 	{SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8987_WLAN),
 		.driver_data = (unsigned long)&mwifiex_sdio_sd8987},
 	{SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8997_WLAN),
@@ -2439,6 +2467,7 @@ static int mwifiex_register_dev(struct mwifiex_adapter *adapter)
 	int ret;
 	struct sdio_mmc_card *card = adapter->card;
 	struct sdio_func *func = card->func;
+	const char *firmware = card->firmware;
 
 	/* save adapter pointer in card */
 	card->adapter = adapter;
@@ -2455,7 +2484,18 @@ static int mwifiex_register_dev(struct mwifiex_adapter *adapter)
 		return ret;
 	}
 
-	strcpy(adapter->fw_name, card->firmware);
+	/* Select correct firmware (sdsd or sdiouart) firmware based on the strapping
+	 * option
+	 */
+	if (card->firmware_sdiouart) {
+		u8 val;
+
+		mwifiex_read_reg(adapter, card->reg->host_strap_reg, &val);
+		if ((val & card->reg->host_strap_mask) == card->reg->host_strap_value)
+			firmware = card->firmware_sdiouart;
+	}
+	strcpy(adapter->fw_name, firmware);
+
 	if (card->fw_dump_enh) {
 		adapter->mem_type_mapping_tbl = generic_mem_type_map;
 		adapter->num_mem_types = 1;
@@ -3155,5 +3195,6 @@ MODULE_FIRMWARE(SD8797_DEFAULT_FW_NAME);
 MODULE_FIRMWARE(SD8897_DEFAULT_FW_NAME);
 MODULE_FIRMWARE(SD8887_DEFAULT_FW_NAME);
 MODULE_FIRMWARE(SD8977_DEFAULT_FW_NAME);
+MODULE_FIRMWARE(SD8978_SDIOUART_FW_NAME);
 MODULE_FIRMWARE(SD8987_DEFAULT_FW_NAME);
 MODULE_FIRMWARE(SD8997_DEFAULT_FW_NAME);

drivers/net/wireless/marvell/mwifiex/sdio.h

@@ -37,6 +37,7 @@
 #define SD8887_DEFAULT_FW_NAME "mrvl/sd8887_uapsta.bin"
 #define SD8801_DEFAULT_FW_NAME "mrvl/sd8801_uapsta.bin"
 #define SD8977_DEFAULT_FW_NAME "mrvl/sdsd8977_combo_v2.bin"
+#define SD8978_SDIOUART_FW_NAME "mrvl/sdiouartiw416_combo_v0.bin"
 #define SD8987_DEFAULT_FW_NAME "mrvl/sd8987_uapsta.bin"
 #define SD8997_DEFAULT_FW_NAME "mrvl/sdsd8997_combo_v4.bin"
 
@@ -198,6 +199,9 @@ struct mwifiex_sdio_card_reg {
 	u8 host_int_rsr_reg;
 	u8 host_int_status_reg;
 	u8 host_int_mask_reg;
+	u8 host_strap_reg;
+	u8 host_strap_mask;
+	u8 host_strap_value;
 	u8 status_reg_0;
 	u8 status_reg_1;
 	u8 sdio_int_mask;
@@ -243,6 +247,7 @@ struct sdio_mmc_card {
 
 	struct completion fw_done;
 	const char *firmware;
+	const char *firmware_sdiouart;
 	const struct mwifiex_sdio_card_reg *reg;
 	u8 max_ports;
 	u8 mp_agg_pkt_limit;
@@ -276,6 +281,7 @@ struct sdio_mmc_card {
 
 struct mwifiex_sdio_device {
 	const char *firmware;
+	const char *firmware_sdiouart;
 	const struct mwifiex_sdio_card_reg *reg;
 	u8 max_ports;
 	u8 mp_agg_pkt_limit;

include/linux/mmc/sdio_ids.h

@@ -100,6 +100,7 @@
 #define SDIO_DEVICE_ID_MARVELL_8977_BT		0x9146
 #define SDIO_DEVICE_ID_MARVELL_8987_WLAN	0x9149
 #define SDIO_DEVICE_ID_MARVELL_8987_BT		0x914a
+#define SDIO_DEVICE_ID_MARVELL_8978_WLAN	0x9159
 
 #define SDIO_VENDOR_ID_MEDIATEK			0x037a
 #define SDIO_DEVICE_ID_MEDIATEK_MT7663		0x7663