u-boot

mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-16 01:38:22 +00:00

History

Simon Glass 3929fb0a14 Replace __bss_end__ with __bss_end Note this is a tree-wide change affecting multiple architectures. At present we use __bss_start, but mostly __bss_end__. This seems inconsistent and in a number of places __bss_end is used instead. Change to use __bss_end for the BSS end symbol throughout U-Boot. This makes it possible to use the asm-generic/sections.h file on all archs. Signed-off-by: Simon Glass <sjg@chromium.org>		2013-03-15 16:13:54 -04:00
..
lowlevel_init.S	sh: Add a flag which controls the DDR ECC mode of sh7757lcr	2011-12-02 13:46:21 +09:00
Makefile	punt unused clean/distclean targets	2011-10-15 22:20:36 +02:00
README.sh7757lcr	doc: cleanup - move board READMEs into respective board directories	2012-07-29 15:42:02 +02:00
sh7757lcr.c	sh: sh7757lcr: Add MMC header file of SH	2012-03-26 10:09:31 +09:00
spi-boot.c	Coding Style cleanup: remove trailing empty lines	2011-03-27 21:48:08 +02:00
u-boot.lds	Replace __bss_end__ with __bss_end	2013-03-15 16:13:54 -04:00

README.sh7757lcr

========================================
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