upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
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u-boot/doc/README.sh7753evb

1.3 KiB

========================================
Renesas SH7753 EVB board
========================================

This board specification:
=========================

The SH7753 EVB (board config name:sh7753evb) has the following device:

- SH7753 (SH-4A)
- DDR3-SDRAM 512MB
- SPI ROM 8MB
- Gigabit Ethernet controllers
- eMMC 4GB


Configuration for This board:
=============================

You can select the configuration as follows:

- make sh7753evb_config


This board specific command:
============================

This board has the following its specific command:

- write_mac


1. write_mac

You can write MAC address to SPI ROM.

Usage 1) Write MAC address

write_mac [GETHERC ch0] [GETHERC ch1]

For example)
=> write_mac 74:90:50:00:33:9e 74:90:50:00:33:9f
*) We have to input the command as a single line
(without carriage return)
*) We have to reset after input the command.

Usage 2) Show current data

write_mac

For example)
=> write_mac
GETHERC ch0 = 74:90:50:00:33:9e
GETHERC ch1 = 74:90:50:00:33:9f


Update SPI ROM:
============================

1. Copy u-boot image to RAM area.
2. Probe SPI device.
=> sf probe 0
SF: Detected MX25L6405D with page size 64KiB, total 8 MiB
3. Erase SPI ROM.
=> sf erase 0 80000
4. Write u-boot image to SPI ROM.
=> sf write 0x48000000 0 80000