0002-Add-DFU-alternative-function-for-evb-rk3399.patch

From ed57f537a17d924424b81b8ca61a94f8973905f9 Mon Sep 17 00:00:00 2001
From: frank_chiang <frank_chiang@asus.com>
Date: Mon, 25 Mar 2024 16:26:55 +0800
Subject: [PATCH 1/1] Add DFU alternative function for evb-rk3399

---
 board/rockchip/evb_rk3399/evb-rk3399.c | 36 ++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/board/rockchip/evb_rk3399/evb-rk3399.c b/board/rockchip/evb_rk3399/evb-rk3399.c
index abb76585cf..169420e925 100644
--- a/board/rockchip/evb_rk3399/evb-rk3399.c
+++ b/board/rockchip/evb_rk3399/evb-rk3399.c
@@ -10,6 +10,9 @@
 #include <asm/arch-rockchip/periph.h>
 #include <power/regulator.h>
 
+#include <dfu.h>
+#include <env.h>
+
 #ifndef CONFIG_SPL_BUILD
 int board_early_init_f(void)
 {
@@ -30,3 +33,36 @@ out:
 	return 0;
 }
 #endif
+
+/* ALT_INFO Macro Function below added for DFU_ALT_INFO */
+#ifdef CONFIG_SET_DFU_ALT_INFO
+#define CONFIG_DFU_ALT_BOOT_SD \
+	"mmc 1=idbloader-img raw 0x40 0x2000;u-boot-itb raw 0x4000 0x2000\0"
+#define CONFIG_DFU_ALT_BOOT_EMMC \
+	"mmc 0=idbloader-img raw 0x40 0x2000;u-boot-itb raw 0x4000 0x2000\0"
+
+void set_dfu_alt_info(char *interface, char *devstr)
+{
+	char *alt_info;
+	struct mmc *mmc;
+	int dev_num = 0;
+	alt_info = env_get("dfu_alt_info");
+	if (alt_info)
+		return;
+	dev_num = simple_strtoul(devstr ? devstr:"0", NULL, 10);
+	mmc = find_mmc_device(dev_num);
+
+	int err = mmc_get_op_cond(mmc);
+	if (err) {
+		if (dev_num)
+			mmc = find_mmc_device(0);
+		else
+			mmc = find_mmc_device(1);
+	}
+
+	if (!mmc || mmc_init(mmc))
+		return;
+	alt_info = IS_SD(mmc) ? CONFIG_DFU_ALT_BOOT_SD : CONFIG_DFU_ALT_BOOT_EMMC;
+	env_set("dfu_alt_info", alt_info);
+}
+#endif
-- 
2.25.1