[RFC,v2,1/4] spl: Kconfig: support U-Boot load from raw NAND
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Message ID 20250515145541.886857-2-dario.binacchi@amarulasolutions.com
State New
Headers show
Series
  • Restore imx8mn_bsh_smm_s2 properly booting
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Commit Message

Dario Binacchi May 15, 2025, 2:55 p.m. UTC 
Commit 2a00d73d081a ("spl: mmc: Try to clean up raw-mode options") breaks
the boot of the BSH SMM S2 board. As stated in the commit itself, "Some
boards use this value even though MMC is not enabled in SPL, for example
imx8mn_bsh_smm_s2".

Support load of the U-Boot image from raw NAND sector. This is equivalent
to load from MMC raw sector.

Fixes: 2a00d73d081a ("spl: mmc: Try to clean up raw-mode options")
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>

---

Changes in v2:
- Add SPL_NAND_RAW_U_BOOT_USE_SECTOR and SPL_NAND_RAW_U_BOOT_SECTOR

 common/spl/Kconfig | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

Patch
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diff --git a/common/spl/Kconfig b/common/spl/Kconfig
index aa3a85eea54d..77cf04d38ed0 100644
--- a/common/spl/Kconfig
+++ b/common/spl/Kconfig
@@ -974,6 +974,21 @@  config SPL_NAND_SUPPORT
 	  This enables the drivers in drivers/mtd/nand/raw as part of an SPL
 	  build.
 
+config SPL_NAND_RAW_U_BOOT_USE_SECTOR
+	bool "NAND raw mode: by sector"
+	depends on SPL_NAND_SUPPORT
+	select SPL_LOAD_BLOCK
+	help
+	  Use sector number for specifying U-Boot location on NAND in
+	  raw mode.
+
+config SPL_NAND_RAW_U_BOOT_SECTOR
+	hex "Address on the NAND to load U-Boot from"
+	depends on SPL_NAND_RAW_U_BOOT_USE_SECTOR
+	help
+	  Address on the NAND to load U-Boot from, when the NAND is being used
+	  in raw mode. Units: NAND disk sectors (1 sector = 512 bytes).
+
 config SPL_NAND_RAW_ONLY
 	bool "Support to boot only raw u-boot.bin images"
 	depends on SPL_NAND_SUPPORT