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.masah...@socionext.com>
---
doc/README.uniphier | 14 ++++++++++++++
include/configs/uniphier.h | 7 +++++++
2 files changed, 21 insertions(+)
diff --git a/doc/README.uniphier b/doc/README.uniphier
index 7cfff97..47b4d78 100644
--- 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 19dbfbb..1b28cdc 100644
--- 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 &&" \
--
1.9.1
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