ARM: uniphier: add emmcupdate command

The Boot ROM expects the boot image (SPL) in the Boot Partition 1.
So, updating images involves the hardware partition switch.  It might
be a bit advanced for some users.

To be user-friendly, this commit adds a useful command to update the
images; just put SPL and U-Boot proper into the public directory of
the TFTP server and execute "run emmcupdate" from the command line.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

diff --git a/doc/README.uniphier b/doc/README.uniphier
index c270ecb9a5bb302d470331cc43ae1b09c08593da..5ac52bd41f2de839860cefdad184d9cb9b3517c9 100644 (file)
--- a/doc/README.uniphier
+++ b/doc/README.uniphier
@@ -78,6 +78,20 @@ directory, and then run the following command at the U-Boot command line:
   => run nandupdate
 
 
+Burn U-Boot images to eMMC
+--------------------------
+
+Write two files to the Boot partition 1 of the eMMC device as follows:
+ - spl/u-boot-spl.bin at the offset address 0x00000000
+ - u-boot.img         at the offset address 0x00010000
+
+If a TFTP server is available, the images can be easily updated.
+Just copy the u-boot-spl-dtb.bin and u-boot-dtb.img to the TFTP public
+directory, and then run the following command at the U-Boot command line:
+
+  => run emmcupdate
+
+
 UniPhier specific commands
 --------------------------
 

diff --git a/include/configs/uniphier.h b/include/configs/uniphier.h
index 19dbfbbfc7919f3516715df5f775fddc589b8103..1b28cdc1a984e4da65ac8ad30e9ef55be604029f 100644 (file)
--- a/include/configs/uniphier.h
+++ b/include/configs/uniphier.h
@@ -233,6 +233,13 @@
        "netdev=eth0\0"                                         \
        "verify=n\0"                                            \
        "nor_base=0x42000000\0"                                 \
+       "emmcupdate=mmcsetn &&"                                 \
+               "mmc partconf $mmc_first_dev 0 1 1 &&"          \
+               "mmc erase 0 800 &&"                            \
+               "tftpboot u-boot-spl.bin &&"                    \
+               "mmc write $loadaddr 0 80 &&"                   \
+               "tftpboot u-boot.img &&"                        \
+               "mmc write $loadaddr 80 780\0"                  \
        "nandupdate=nand erase 0 0x00100000 &&"                 \
                "tftpboot u-boot-spl.bin &&"                    \
                "nand write $loadaddr 0 0x00010000 &&"          \