[PATCH 2/5] Revert "imx: Introduce CONFIG_SPL_FORCE_MMC_BOOT to force MMC boot on falcon mode"

[Harald Seiler <hws@denx.de>]

The CONFIG_SPL_FORCE_MMC_BOOT config flag is not needed as its behavior
is the correct one in all cases;  using spl_boot_device() instead of the
boot_device parameter will lead to inconsistency issues, for example,
when a board_boot_order() is defined.  In fact, this is the reason the
parameter was introduced in the first place, in commit 2b1cdafa9fdd
("common: Pass the boot device into spl_boot_mode()").

This reverts commit 772b55723bcbe8ebe84f579d9cdc831d8e18579d.

Link: https://lists.denx.de/pipermail/u-boot/2020-April/405979.html
Signed-off-by: Harald Seiler <hws@denx.de>
---
 arch/arm/mach-imx/spl.c | 11 -----------
 common/spl/Kconfig      |  9 ---------
 2 files changed, 20 deletions(-)

diff --git a/arch/arm/mach-imx/spl.c b/arch/arm/mach-imx/spl.c
index e5835150a06d..e3f51e45edf2 100644
--- a/arch/arm/mach-imx/spl.c
+++ b/arch/arm/mach-imx/spl.c
@@ -219,18 +219,7 @@ u32 spl_mmc_boot_mode(const u32 boot_device)
 		hang();
 	}
 #else
-/*
- * When CONFIG_SPL_FORCE_MMC_BOOT is defined the 'boot_device' is used
- * unconditionally to decide about device to use for booting.
- * This is crucial for falcon boot mode, when board boots up (i.e. ROM
- * loads SPL) from slow SPI-NOR memory and afterwards the SPL's 'falcon' boot
- * mode is used to load Linux OS from eMMC partition.
- */
-#ifdef CONFIG_SPL_FORCE_MMC_BOOT
 	switch (boot_device) {
-#else
-	switch (boot_device) {
-#endif
 	/* for MMC return either RAW or FAT mode */
 	case BOOT_DEVICE_MMC1:
 	case BOOT_DEVICE_MMC2:
diff --git a/common/spl/Kconfig b/common/spl/Kconfig
index 9d52b75cb434..344fb8003f63 100644
--- a/common/spl/Kconfig
+++ b/common/spl/Kconfig
@@ -669,15 +669,6 @@ config SPL_MMC_SUPPORT
 	  this option to build the drivers in drivers/mmc as part of an SPL
 	  build.
 
-config SPL_FORCE_MMC_BOOT
-	bool "Force SPL booting from MMC"
-	depends on SPL_MMC_SUPPORT
-	default n
-	help
-	  Force SPL to use MMC device for Linux kernel booting even when the
-	  SoC ROM recognized boot medium is not eMMC/SD. This is crucial for
-	  factory or 'falcon mode' booting.
-
 config SPL_MMC_TINY
 	bool "Tiny MMC framework in SPL"
 	depends on SPL_MMC_SUPPORT
-- 
2.26.1