wifi: rtw89: 8922a: set memory heap address for secure firmware

Secure firmware is protected by public/private key cryptography. To help
firmware self verify integrity, configure a heap address for these
data before downloading firmware.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230901073956.54203-9-pkshih@realtek.com

drivers/net/wireless/realtek/rtw89/fw.c

@@ -912,6 +912,10 @@ static int rtw89_fw_download_suit(struct rtw89_dev *rtwdev,
 		return ret;
 	}
 
+	if (rtwdev->chip->chip_id == RTL8922A &&
+	    (fw_suit->type == RTW89_FW_NORMAL || fw_suit->type == RTW89_FW_WOWLAN))
+		rtw89_write32(rtwdev, R_BE_SECURE_BOOT_MALLOC_INFO, 0x20248000);
+
 	ret = mac->fwdl_check_path_ready(rtwdev, true);
 	if (ret) {
 		rtw89_err(rtwdev, "[ERR]H2C path ready\n");

drivers/net/wireless/realtek/rtw89/reg.h

@@ -3670,6 +3670,8 @@
 #define B_BE_LPS_STATUS BIT(3)
 #define B_BE_HCI_TXDMA_BUSY BIT(2)
 
+#define R_BE_SECURE_BOOT_MALLOC_INFO 0x0184
+
 #define R_BE_WCPU_FW_CTRL 0x01E0
 #define B_BE_RUN_ENV_MASK GENMASK(31, 30)
 #define B_BE_WCPU_FWDL_STATUS_MASK GENMASK(29, 26)