To boot UniPhier boards with the NAND boot mode, two images (u-boot-spl.bin and u-boot-dtb.img) must be written at the correct offset addresses.
TFTP downloading is useful to update such images in the NAND device. We generally do:
=> nand erase 0 0x100000 => tftpboot u-boot-spl.bin => nand write $loadaddr 0 0x10000 => tftpboot u-boot-dtb.img => nand write $loadaddr 0x10000 0xf0000
It is a tedious and error-prone operation.
This commit provides the shorthand:
=> run nandupdate
Signed-off-by: Masahiro Yamada yamada.m@jp.panasonic.com ---
Changes in v2: - Newly added
include/configs/uniphier.h | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/include/configs/uniphier.h b/include/configs/uniphier.h index 43d2a4c..35bea1a 100644 --- a/include/configs/uniphier.h +++ b/include/configs/uniphier.h @@ -235,6 +235,11 @@ "image_offset=0x00080000\0" \ "image_size=0x00f00000\0" \ "verify=n\0" \ + "nandupdate=nand erase 0 0x100000 &&" \ + "tftpboot u-boot-spl.bin &&" \ + "nand write $loadaddr 0 0x10000 &&" \ + "tftpboot u-boot-dtb.img &&" \ + "nand write $loadaddr 0x10000 0xf0000\0" \ "norboot=run add_default_bootargs &&" \ "bootm $image_offset\0" \ "nandboot=run add_default_bootargs &&" \