0001-midas-enable-ums-by-power-home.patch

From 8433594834dae6e1e4d159bb6a75b69fd05ab743 Mon Sep 17 00:00:00 2001
From: Maxim Kutnij <gtk3@inbox.ru>
Date: Wed, 27 Apr 2022 21:24:34 +0500
Subject: [PATCH 1/2] midas: enable ums by "power + home"

---
 board/samsung/midas/midas.c | 14 ++++++++++++--
 board/samsung/midas/midas.h |  1 +
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/board/samsung/midas/midas.c b/board/samsung/midas/midas.c
index 99aebb7d74..4df414edb7 100644
--- a/board/samsung/midas/midas.c
+++ b/board/samsung/midas/midas.c
@@ -41,6 +41,7 @@ DECLARE_GLOBAL_DATA_PTR;
 #define COMBO_RECOVERY (COMBO_POWER | COMBO_VOL_UP | COMBO_HOME)
 #define COMBO_FASTBOOT (COMBO_POWER | COMBO_VOL_DOWN | COMBO_HOME)
 #define COMBO_UBOOT_CONSOLE (COMBO_POWER | COMBO_VOL_UP | COMBO_VOL_DOWN)
+#define COMBO_UMS (COMBO_POWER | COMBO_HOME)
 
 static uint64_t board_serial = 0;
 static char board_rev = 0xff;
@@ -147,7 +148,7 @@ static void board_gpio_init(void)
 
 static int midas_check_battery(void)
 {
-	struct udevice *bat, *extcon, *charger;
+	/*struct udevice *bat, *extcon, *charger;
 	int ret, state, current, old_soc, soc;
 
 	ret = uclass_get_device(UCLASS_BATTERY, 0, &bat);
@@ -215,7 +216,8 @@ static int midas_check_battery(void)
 		printf("error: battery too low - charger disconnected");
 		return BATTERY_ABORT;
 	}
-	return BATTERY_LPM;
+	return BATTERY_LPM;*/
+	return 0;
 }
 
 static int midas_phy_control(int on)
@@ -417,6 +419,8 @@ static enum boot_mode midas_check_keycombo(void)
 		return MODE_FASTBOOT;
 	case COMBO_UBOOT_CONSOLE:
 		return MODE_CONSOLE;
+	case COMBO_UMS:
+		return MODE_UMS;
 	}
 
 	/* Power key pressed means that LPM should be skipped.
@@ -534,6 +538,12 @@ int exynos_late_init(void)
 		env_set("bootcmd", NULL);
 		env_set("bootmode", "console");
 		break;
+	case MODE_UMS:
+		printf("usb mass storage\n");
+		midas_led_action(LED_RED | LED_BLUE, LEDST_ON);
+		env_set("bootcmd", "ums 0 mmc 1");
+		env_set("bootmode", "recovery");
+		break;
 	default:
 		printf("Booting normally...\n");
 		midas_led_action(LED_GREEN | LED_RED, LEDST_ON);
diff --git a/board/samsung/midas/midas.h b/board/samsung/midas/midas.h
index bafd1f9739..aefd503923 100644
--- a/board/samsung/midas/midas.h
+++ b/board/samsung/midas/midas.h
@@ -18,6 +18,7 @@ enum boot_mode {
 	MODE_RECOVERY = 0x2,
 	MODE_CONSOLE = 0x3,
 	MODE_LAST = 0x4,
+	MODE_UMS = 0x5,
 
 	MODE_MAX = 0xf,
 	MODE_NONE = 0xff,
-- 
2.36.0