From 64e9d564653566812dfade36d20f1794407e6ca1 Mon Sep 17 00:00:00 2001 From: Martin Blumenstingl Date: Sat, 18 Feb 2023 16:29:42 +0100 Subject: [PATCH 56/85] wifi: rtw88: rtw8821c: Implement RTL8821CS (SDIO) efuse parsing The efuse of the SDIO RTL8821CS chip has only one known member: the mac address is at offset 0x11a. Add a struct rtw8821cs_efuse describing this and use it for copying the mac address when the SDIO bus is used. Signed-off-by: Martin Blumenstingl Reviewed-by: Ping-Ke Shih Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20230218152944.48842-4-martin.blumenstingl@googlemail.com --- drivers/net/wireless/realtek/rtw88/rtw8821c.c | 9 +++++++++ drivers/net/wireless/realtek/rtw88/rtw8821c.h | 6 ++++++ 2 files changed, 15 insertions(+) --- a/drivers/net/wireless/realtek/rtw88/rtw8821c.c +++ b/drivers/net/wireless/realtek/rtw88/rtw8821c.c @@ -32,6 +32,12 @@ static void rtw8821cu_efuse_parsing(stru ether_addr_copy(efuse->addr, map->u.mac_addr); } +static void rtw8821cs_efuse_parsing(struct rtw_efuse *efuse, + struct rtw8821c_efuse *map) +{ + ether_addr_copy(efuse->addr, map->s.mac_addr); +} + enum rtw8821ce_rf_set { SWITCH_TO_BTG, SWITCH_TO_WLG, @@ -77,6 +83,9 @@ static int rtw8821c_read_efuse(struct rt case RTW_HCI_TYPE_USB: rtw8821cu_efuse_parsing(efuse, map); break; + case RTW_HCI_TYPE_SDIO: + rtw8821cs_efuse_parsing(efuse, map); + break; default: /* unsupported now */ return -ENOTSUPP; --- a/drivers/net/wireless/realtek/rtw88/rtw8821c.h +++ b/drivers/net/wireless/realtek/rtw88/rtw8821c.h @@ -65,6 +65,11 @@ struct rtw8821ce_efuse { u8 res7; }; +struct rtw8821cs_efuse { + u8 res4[0x4a]; /* 0xd0 */ + u8 mac_addr[ETH_ALEN]; /* 0x11a */ +} __packed; + struct rtw8821c_efuse { __le16 rtl_id; u8 res0[0x0e]; @@ -94,6 +99,7 @@ struct rtw8821c_efuse { union { struct rtw8821ce_efuse e; struct rtw8821cu_efuse u; + struct rtw8821cs_efuse s; }; };