linux-kernel - [DONOTAPPLY RFC PATCH v2 2/4] net: mwifiex: add support for the SD8777 chipset

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Message-ID: <20251026182602.26464-3-balejk@matfyz.cz>
Date: Sun, 26 Oct 2025 19:20:39 +0100
From: Karel Balej <balejk@...fyz.cz>
To: Johannes Berg <johannes@...solutions.net>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Duje Mihanović <duje@...emihanovic.xyz>,
        Andrew Lunn <andrew@...n.ch>,
        Gregory Clement <gregory.clement@...tlin.com>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        Brian Norris <briannorris@...omium.org>,
        Francesco Dolcini <francesco@...cini.it>,
        Ulf Hansson <ulf.hansson@...aro.org>, Frank Li <Frank.Li@....com>,
        linux-wireless@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mmc@...r.kernel.org
Cc: ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
        Karel Balej <balejk@...fyz.cz>, Jeff Chen <jeff.chen_1@....com>,
        Peng Fan <peng.fan@....com>
Subject: [DONOTAPPLY RFC PATCH v2 2/4] net: mwifiex: add support for the SD8777 chipset

Marvell SD8777 is a wireless chipset used for instance in the PXA1908
SoC found for example in the samsung,coreprimevelte smartphone, with
which this was tested. The driver seems to be compatible with this
chipset so enable this support by adding the necessary information based
on the downstream code.

Signed-off-by: Karel Balej <balejk@...fyz.cz>
---
 drivers/net/wireless/marvell/mwifiex/sdio.c | 21 +++++++++++++++++++++
 drivers/net/wireless/marvell/mwifiex/sdio.h |  1 +
 include/linux/mmc/sdio_ids.h                |  1 +
 3 files changed, 23 insertions(+)

diff --git a/drivers/net/wireless/marvell/mwifiex/sdio.c b/drivers/net/wireless/marvell/mwifiex/sdio.c
index f039d6f19183..a1adb78fabaf 100644
--- a/drivers/net/wireless/marvell/mwifiex/sdio.c
+++ b/drivers/net/wireless/marvell/mwifiex/sdio.c
@@ -318,6 +318,23 @@ static const struct mwifiex_sdio_card_reg mwifiex_reg_sd89xx = {
 				 0x68, 0x69, 0x6a},
 };
 
+static const struct mwifiex_sdio_device mwifiex_sdio_sd8777 = {
+	.firmware = SD8777_DEFAULT_FW_NAME,
+	.reg = &mwifiex_reg_sd87xx,
+	.max_ports = 16,
+	.mp_agg_pkt_limit = 8,
+	.tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K,
+	.mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K,
+	.mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K,
+	.supports_sdio_new_mode = false,
+	.has_control_mask = true,
+	.can_dump_fw = false,
+	.can_auto_tdls = true,
+	.can_ext_scan = true,
+	.fw_ready_extra_delay = false,
+	.host_mlme = false,
+};
+
 static const struct mwifiex_sdio_device mwifiex_sdio_sd8786 = {
 	.firmware = SD8786_DEFAULT_FW_NAME,
 	.reg = &mwifiex_reg_sd87xx,
@@ -516,6 +533,7 @@ static struct memory_type_mapping mem_type_mapping_tbl[] = {
 };
 
 static const struct of_device_id mwifiex_sdio_of_match_table[] __maybe_unused = {
+	{ .compatible = "marvell,sd8777" },
 	{ .compatible = "marvell,sd8787" },
 	{ .compatible = "marvell,sd8897" },
 	{ .compatible = "marvell,sd8978" },
@@ -954,6 +972,8 @@ static void mwifiex_sdio_coredump(struct device *dev)
 
 /* WLAN IDs */
 static const struct sdio_device_id mwifiex_ids[] = {
+	{SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8777_WLAN),
+		.driver_data = (unsigned long)&mwifiex_sdio_sd8777},
 	{SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8786_WLAN),
 		.driver_data = (unsigned long) &mwifiex_sdio_sd8786},
 	{SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8787_WLAN),
@@ -3201,6 +3221,7 @@ MODULE_AUTHOR("Marvell International Ltd.");
 MODULE_DESCRIPTION("Marvell WiFi-Ex SDIO Driver version " SDIO_VERSION);
 MODULE_VERSION(SDIO_VERSION);
 MODULE_LICENSE("GPL v2");
+MODULE_FIRMWARE(SD8777_DEFAULT_FW_NAME);
 MODULE_FIRMWARE(SD8786_DEFAULT_FW_NAME);
 MODULE_FIRMWARE(SD8787_DEFAULT_FW_NAME);
 MODULE_FIRMWARE(SD8797_DEFAULT_FW_NAME);
diff --git a/drivers/net/wireless/marvell/mwifiex/sdio.h b/drivers/net/wireless/marvell/mwifiex/sdio.h
index 65d142286c46..c6425191ad84 100644
--- a/drivers/net/wireless/marvell/mwifiex/sdio.h
+++ b/drivers/net/wireless/marvell/mwifiex/sdio.h
@@ -18,6 +18,7 @@
 
 #include "main.h"
 
+#define SD8777_DEFAULT_FW_NAME "mrvl/sd8777_uapsta.bin"
 #define SD8786_DEFAULT_FW_NAME "mrvl/sd8786_uapsta.bin"
 #define SD8787_DEFAULT_FW_NAME "mrvl/sd8787_uapsta.bin"
 #define SD8797_DEFAULT_FW_NAME "mrvl/sd8797_uapsta.bin"
diff --git a/include/linux/mmc/sdio_ids.h b/include/linux/mmc/sdio_ids.h
index 673cbdf43453..61e95b5a528c 100644
--- a/include/linux/mmc/sdio_ids.h
+++ b/include/linux/mmc/sdio_ids.h
@@ -95,6 +95,7 @@
 #define SDIO_DEVICE_ID_MARVELL_8797_BT		0x912a
 #define SDIO_DEVICE_ID_MARVELL_8897_WLAN	0x912d
 #define SDIO_DEVICE_ID_MARVELL_8897_BT		0x912e
+#define SDIO_DEVICE_ID_MARVELL_8777_WLAN	0x9131
 #define SDIO_DEVICE_ID_MARVELL_8887_F0		0x9134
 #define SDIO_DEVICE_ID_MARVELL_8887_WLAN	0x9135
 #define SDIO_DEVICE_ID_MARVELL_8887_BT		0x9136
-- 
2.51.1