[PATCH 1/5] mtd: nand: introduce SPL_NAND_FRAMEWORK_CAPABLE Kconfig option

[dinesh.maniyam at altera.com]

From: Dinesh Maniyam <dinesh.maniyam at altera.com>

The SPL NAND MTD framework requires working driver model support
and sufficient memory resources, which are not available on all
platforms.

Introduce a SPL_NAND_FRAMEWORK_CAPABLE Kconfig option to allow
platforms to explicitly advertise support for compiling the full
NAND/MTD framework into SPL.

This avoids accidental enablement of the SPL NAND framework on
platforms that cannot support it and provides a clear capability
boundary for platform maintainers.

Signed-off-by: Dinesh Maniyam <dinesh.maniyam at altera.com>
---
 drivers/mtd/nand/raw/Kconfig | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/drivers/mtd/nand/raw/Kconfig b/drivers/mtd/nand/raw/Kconfig
index e0ff28cb21b..e41e5ef2e94 100644
--- a/drivers/mtd/nand/raw/Kconfig
+++ b/drivers/mtd/nand/raw/Kconfig
@@ -809,6 +809,31 @@ config SYS_NAND_HW_ECC_OOBFIRST
 	bool "In SPL, read the OOB first and then the data from NAND"
 	depends on SPL_NAND_SIMPLE
 
+config SPL_NAND_FRAMEWORK_CAPABLE
+	bool
+	depends on SPL_DM
+	depends on SPL_HAS_BSS_LINKER_SECTION
+
+config SPL_NAND_USE_NAND_FRAMEWORK
+	bool "Use NAND/MTD framework in SPL"
+	depends on SPL_NAND_SUPPORT && MTD
+	depends on SPL_NAND_FRAMEWORK_CAPABLE
+	depends on SPL_ENV_SUPPORT
+	depends on ENV_IS_IN_NAND
+	select SPL_SYS_NAND_SELF_INIT
+	select SPL_NAND_BASE
+	select SPL_NAND_DRIVERS
+	select SPL_NAND_IDENT
+	select SPL_NAND_INIT
+	select SPL_NAND_ECC
+	help
+		Enable loading U-Boot from NAND in SPL using the full
+		NAND/MTD framework instead of the minimal SPL NAND loaders.
+		This provides bad-block aware reads and flexible offset
+		handling via the common NAND/MTD infrastructure.
+		Platforms enabling this option must also provide working
+		driver model support and sufficient SPL memory resources.
+
 endif	# if SPL
 
 endif	# if MTD_RAW_NAND
-- 
2.43.7