From: Fabio Estevam <festevam@denx.de>
Date: Thu, 21 Apr 2022 18:05:23 +0000 (-0300)
Subject: imx8mn/8mp: Allow booting via USB
X-Git-Tag: v2025.01-rc5-pxa1908~1402^2~60
X-Git-Url: http://git.dujemihanovic.xyz/projects?a=commitdiff_plain;h=d175982c207bb2ace592d7985cd3f05ab99759d9;p=u-boot.git

imx8mn/8mp: Allow booting via USB

When trying to boot via USB on i.MX8MN it is necessary to specify
the U-Boot environment location, otherwise the boot process simply
hangs.

Specify the environment location when booting from USB.

Tested on a imx8mn-evk.

Suggested-by: Michael Nazzareno Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Fabio Estevam <festevam@denx.de>
Tested-By: Tim Harvey <tharvey@gateworks.com>
---

diff --git a/arch/arm/mach-imx/imx8m/soc.c b/arch/arm/mach-imx/imx8m/soc.c
index 8e23e6da32..bc3379a250 100644
--- a/arch/arm/mach-imx/imx8m/soc.c
+++ b/arch/arm/mach-imx/imx8m/soc.c
@@ -1535,6 +1535,16 @@ enum env_location arch_env_get_location(enum env_operation op, int prio)
 		return ENVL_UNKNOWN;
 
 	switch (dev) {
+	case USB_BOOT:
+		if (IS_ENABLED(CONFIG_ENV_IS_IN_SPI_FLASH))
+			return ENVL_SPI_FLASH;
+		if (IS_ENABLED(CONFIG_ENV_IS_IN_NAND))
+			return ENVL_NAND;
+		if (IS_ENABLED(CONFIG_ENV_IS_IN_MMC))
+			return ENVL_MMC;
+		if (IS_ENABLED(CONFIG_ENV_IS_NOWHERE))
+			return ENVL_NOWHERE;
+		return ENVL_UNKNOWN;
 	case QSPI_BOOT:
 	case SPI_NOR_BOOT:
 		if (IS_ENABLED(CONFIG_ENV_IS_IN_SPI_FLASH))