[openwrt/openwrt] arm-trusted-firmware-mediatek: add FudanMicro manufacturer

[LEDE Commits]

hauke pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/863a594d188f53390c16448a1516b1b9634697e7

commit 863a594d188f53390c16448a1516b1b9634697e7
Author: Mikhail Zhilkin <csharper2005 at gmail.com>
AuthorDate: Wed Aug 13 22:46:54 2025 +0300

    arm-trusted-firmware-mediatek: add FudanMicro manufacturer
    
    Add FudanMicro manufacturer.
    
    Signed-off-by: Mikhail Zhilkin <csharper2005 at gmail.com>
    Link: https://github.com/openwrt/openwrt/pull/19760
    Signed-off-by: Hauke Mehrtens <hauke at hauke-m.de>
---
 ...mediatek-snfi-add-FudanMicro-manufacturer.patch | 41 ++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/package/boot/arm-trusted-firmware-mediatek/patches/0004-mediatek-snfi-add-FudanMicro-manufacturer.patch b/package/boot/arm-trusted-firmware-mediatek/patches/0004-mediatek-snfi-add-FudanMicro-manufacturer.patch
new file mode 100644
index 0000000000..7900cfe44d
--- /dev/null
+++ b/package/boot/arm-trusted-firmware-mediatek/patches/0004-mediatek-snfi-add-FudanMicro-manufacturer.patch
@@ -0,0 +1,41 @@
+From fd057aba83aea8458986e11c81dbb75a69468b84 Mon Sep 17 00:00:00 2001
+From: Mikhail Zhilkin <csharper2005 at gmail.com>
+Date: Wed, 13 Aug 2025 22:46:54 +0300
+Subject: arm-trusted-firmware-mediatek: add FudanMicro manufacturer
+
+Add FudanMicro manufacturer.
+
+Signed-off-by: Mikhail Zhilkin <csharper2005 at gmail.com>
+---
+
+--- a/plat/mediatek/apsoc_common/drivers/spi_nand/mtk_spi_nand.c
++++ b/plat/mediatek/apsoc_common/drivers/spi_nand/mtk_spi_nand.c
+@@ -21,6 +21,7 @@
+ #define SPI_NAND_MAX_ID_LEN		4U
+ #define DELAY_US_400MS			400000U
+ #define ETRON_ID			0xD5U
++#define FUDAN_ID			0xA1U
+ #define GIGADEVICE_ID			0xC8U
+ #define MACRONIX_ID			0xC2U
+ #define MICRON_ID			0x2CU
+@@ -146,7 +147,8 @@ static int spi_nand_quad_enable(uint8_t
+ 	if (manufacturer_id != MACRONIX_ID &&
+ 	    manufacturer_id != GIGADEVICE_ID &&
+ 	    manufacturer_id != ETRON_ID &&
+-	    manufacturer_id != FORESEE_ID) {
++	    manufacturer_id != FORESEE_ID &&
++	    manufacturer_id != FUDAN_ID) {
+ 		return 0;
+ 	}
+ 
+@@ -543,6 +545,10 @@ static int spi_nand_check_pp(struct para
+ 		INFO("PP COPY %d CRC read: 0x%x, compute: 0x%x\n",
+ 		     i, crc, crc_compute);
+ 
++		// FUDAN integrity CRC (bytes 254-255) is reversed
++		if (crc != crc_compute)
++			crc = htobe16(pp->integrity_crc);
++
+ 		if (crc != crc_compute) {
+ 			ret = -EBADMSG;
+ 			continue;