From: João Paulo Gonçalves <joao.goncalves@toradex.com>
Date: Mon, 11 Aug 2025 12:57:50 +0000 (-0300)
Subject: arm: imx: imx9: soc: Fix env location when booting from USB
X-Git-Tag: v2025.10-rc3~7^2~2
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a20dbbb0711ef144703848105dd0500b16ba7eae;p=pandora-u-boot.git

arm: imx: imx9: soc: Fix env location when booting from USB

On i.MX9 platforms, when booting from USB, the U-Boot environment is
always assumed to be in RAM. However, this causes the boot to hang when
`CONFIG_ENV_IS_NOWHERE` is not enabled. The boot also hangs even if the
environment is present in another storage media (for example, eMMC). Fix
the issue by correctly handling the U-Boot environment's location when
booting from USB. Also for i.MX95, set the environment location based on
the ENV config and not solely based on the boot device type.

Suggested-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Signed-off-by: João Paulo Gonçalves <joao.goncalves@toradex.com>
---

diff --git a/arch/arm/mach-imx/imx9/scmi/soc.c b/arch/arm/mach-imx/imx9/scmi/soc.c
index 13f13ca7d10..f973652d0cb 100644
--- a/arch/arm/mach-imx/imx9/scmi/soc.c
+++ b/arch/arm/mach-imx/imx9/scmi/soc.c
@@ -635,7 +635,8 @@ enum env_location env_get_location(enum env_operation op, int prio)
 
 	switch (dev) {
 	case QSPI_BOOT:
-		env_loc = ENVL_SPI_FLASH;
+		if (IS_ENABLED(CONFIG_ENV_IS_IN_SPI_FLASH))
+			env_loc = ENVL_SPI_FLASH;
 		break;
 	case SD1_BOOT:
 	case SD2_BOOT:
@@ -643,10 +644,16 @@ enum env_location env_get_location(enum env_operation op, int prio)
 	case MMC1_BOOT:
 	case MMC2_BOOT:
 	case MMC3_BOOT:
-		env_loc =  ENVL_MMC;
+		if (IS_ENABLED(CONFIG_ENV_IS_IN_MMC))
+			env_loc =  ENVL_MMC;
 		break;
 	default:
-		env_loc = ENVL_NOWHERE;
+		if (IS_ENABLED(CONFIG_ENV_IS_NOWHERE))
+			env_loc = ENVL_NOWHERE;
+		else if (IS_ENABLED(CONFIG_ENV_IS_IN_SPI_FLASH))
+			env_loc = ENVL_SPI_FLASH;
+		else if (IS_ENABLED(CONFIG_ENV_IS_IN_MMC))
+			env_loc = ENVL_MMC;
 		break;
 	}
 
diff --git a/arch/arm/mach-imx/imx9/soc.c b/arch/arm/mach-imx/imx9/soc.c
index 9fb82644f12..3f7dafdcce5 100644
--- a/arch/arm/mach-imx/imx9/soc.c
+++ b/arch/arm/mach-imx/imx9/soc.c
@@ -809,7 +809,13 @@ enum env_location env_get_location(enum env_operation op, int prio)
 			return ENVL_FAT;
 		return ENVL_NOWHERE;
 	default:
-		return ENVL_NOWHERE;
+		if (IS_ENABLED(CONFIG_ENV_IS_NOWHERE))
+			return ENVL_NOWHERE;
+		else if (IS_ENABLED(CONFIG_ENV_IS_IN_SPI_FLASH))
+			return ENVL_SPI_FLASH;
+		else if (IS_ENABLED(CONFIG_ENV_IS_IN_MMC))
+			return ENVL_MMC;
+		return ENVL_UNKNOWN;
 	}
 }