[U-Boot] [PATCH 2/4] spl, nand: add option CONFIG_SPL_NAND_IDENT to lookup for supported NAND chips

[Jörg Krause]

Add the config option `CONFIG_SPL_NAND_IDENT` for using the NAND chip ID list
to identify the NAND flash in SPL.

Signed-off-by: Jörg Krause <joerg.krause at embedded.rocks>
---
 README                       | 4 ++++
 drivers/mtd/nand/Makefile    | 1 +
 scripts/config_whitelist.txt | 1 +
 3 files changed, 6 insertions(+)

diff --git a/README b/README
index 06f3ed057d..9ca5086097 100644
--- a/README
+++ b/README
@@ -2786,6 +2786,10 @@ FIT uImage format:
 		CONFIG_SPL_NAND_DRIVERS
 		SPL uses normal NAND drivers, not minimal drivers.
 
+		CONFIG_SPL_NAND_IDENT
+		SPL uses the chip ID list to identify the NAND flash.
+		Requires CONFIG_SPL_NAND_BASE.
+
 		CONFIG_SPL_NAND_ECC
 		Include standard software ECC in the SPL
 
diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile
index 9f7d9d6ff7..4ed4afde10 100644
--- a/drivers/mtd/nand/Makefile
+++ b/drivers/mtd/nand/Makefile
@@ -17,6 +17,7 @@ obj-$(CONFIG_SPL_NAND_SIMPLE) += nand_spl_simple.o
 obj-$(CONFIG_SPL_NAND_LOAD) += nand_spl_load.o
 obj-$(CONFIG_SPL_NAND_ECC) += nand_ecc.o
 obj-$(CONFIG_SPL_NAND_BASE) += nand_base.o
+obj-$(CONFIG_SPL_NAND_IDENT) += nand_ids.o nand_timings.o
 obj-$(CONFIG_SPL_NAND_INIT) += nand.o
 ifeq ($(CONFIG_SPL_ENV_SUPPORT),y)
 obj-$(CONFIG_ENV_IS_IN_NAND) += nand_util.o
diff --git a/scripts/config_whitelist.txt b/scripts/config_whitelist.txt
index 4e87d66bea..b01d196f5a 100644
--- a/scripts/config_whitelist.txt
+++ b/scripts/config_whitelist.txt
@@ -2092,6 +2092,7 @@ CONFIG_SPL_NAND_BASE
 CONFIG_SPL_NAND_BOOT
 CONFIG_SPL_NAND_DRIVERS
 CONFIG_SPL_NAND_ECC
+CONFIG_SPL_NAND_IDENT
 CONFIG_SPL_NAND_INIT
 CONFIG_SPL_NAND_LOAD
 CONFIG_SPL_NAND_MINIMAL
-- 
2.15.1