========================================
Renesas R0P7757LC0030RL board
========================================

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

The R0P7757LC0030RL(board config name:sh7757lcr) has the following device:

- SH7757 (SH-4A)
- DDR3-SDRAM 256MB (with ECC)
- SPI ROM 8MB
- 2D Graphic controller
- Ethernet controller
- eMMC 2GB

configuration for This board:
=============================

You can select the configuration as follows:

- make sh7785lcr_config

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

This board has the following its specific command:

- sh_g200
- write_mac

1. sh_g200

If we run this command, SH4 can control the G200.
The default setting is that SH4 cannot control the G200.

2. write_mac

You can write MAC address to SPI ROM.

Usage 1) Write MAC address

write_mac [ETHERC ch0] [ETHERC ch1] [GETHERC ch0] [GETHERC ch1]

For example)
=> write_mac 00:00:87:6c:21:80 00:00:87:6c:21:81 00:00:87:6c:21:82 00:00:87:6c:21:83
*) 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
ETHERC ch0 = 00:00:87:6c:21:80
ETHERC ch1 = 00:00:87:6c:21:81
GETHERC ch0 = 00:00:87:6c:21:82
GETHERC ch1 = 00:00:87:6c:21:83

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

1. Copy u-boot image to RAM area.
2. Probe SPI device.
=> sf probe 0
8192 KiB M25P64 at 0:0 is now current device
3. Erase SPI ROM.
=> sf erase 0 80000
4. Write u-boot image to SPI ROM.
=> sf write 0x89000000 0 80000