spl/nand: config symbol documentation

[oweals/u-boot.git] / README

diff --git a/README b/README
index af8ab69955680d790a6410a24f172ce6d52251ce..15596a7c6e96e59b45b424d4f436a8a318a7b40b 100644 (file)
--- a/README
+++ b/README
@@ -2727,7 +2727,8 @@ FIT uImage format:
                Include standard software ECC in the SPL
 
                CONFIG_SPL_NAND_SIMPLE
-               Support for drivers/mtd/nand/libnand.o in SPL binary
+               Support for NAND boot using simple NAND drivers that
+               expose the cmd_ctrl() interface.
 
                CONFIG_SYS_NAND_5_ADDR_CYCLE, CONFIG_SYS_NAND_PAGE_COUNT,
                CONFIG_SYS_NAND_PAGE_SIZE, CONFIG_SYS_NAND_OOBSIZE,
@@ -2735,15 +2736,19 @@ FIT uImage format:
                CONFIG_SYS_NAND_ECCPOS, CONFIG_SYS_NAND_ECCSIZE,
                CONFIG_SYS_NAND_ECCBYTES
                Defines the size and behavior of the NAND that SPL uses
-               to read U-Boot with CONFIG_SPL_NAND_SIMPLE
+               to read U-Boot
 
                CONFIG_SYS_NAND_U_BOOT_OFFS
-               Location in NAND for CONFIG_SPL_NAND_SIMPLE to read U-Boot
-               from.
+               Location in NAND to read U-Boot from
+
+               CONFIG_SYS_NAND_U_BOOT_DST
+               Location in memory to load U-Boot to
+
+               CONFIG_SYS_NAND_U_BOOT_SIZE
+               Size of image to load
 
                CONFIG_SYS_NAND_U_BOOT_START
-               Location in memory for CONFIG_SPL_NAND_SIMPLE to load U-Boot
-               to.
+               Entry point in loaded image to jump to
 
                CONFIG_SYS_NAND_HW_ECC_OOBFIRST
                Define this if you need to first read the OOB and then the