mirror of
https://github.com/brain-hackers/u-boot-brain
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We have switched to Kconfig and the boards.cfg file is going to be removed. We have to retrieve the board status and maintainers information from it. The MAINTAINERS format as in Linux Kernel would be nice because we can crib the scripts/get_maintainer.pl script. After some discussion, we chose to put a MAINTAINERS file under each board directory, not the top-level one because we want to collect relevant information for a board into a single place. TODO: Modify get_maintainer.pl to scan multiple MAINTAINERS files. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Suggested-by: Tom Rini <trini@ti.com> Acked-by: Simon Glass <sjg@chromium.org> |
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| .. | ||
| config.mk | ||
| flash.c | ||
| init.S | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| ocotea.c | ||
| ocotea.h | ||
| README.ocotea | ||
| README.ocotea-PIBS-to-U-Boot | ||
------------------------------------------ Installation of U-Boot using PIBS firmware ------------------------------------------ This document describes how to install U-Boot on the Ocotea PPC440GX Evaluation Board. We do not erase the PIBS firmware but install U-Boot in the soldered FLASH. After this you should be able to switch between PIBS and U-Boot via the switch U46 SW1. Please check that SW1 is off (= open) before continuing. Connect to the serial port 0 (J11 lower) of the Ocotea board using the cu program. See the hints for configuring cu above. Make sure you can communicate with the PIBS firmware: reset the board and hit ENTER a couple of times until you see the PIBS prompt (PIBS $). Then proceed as follows: Read MAC Addresses from PIBS ---------------------------- To read the configured MAC addresses available on your Ocotea board please use the following commands: PIBS $ echo $hwdaddr0 000173017FE3 PIBS $ echo $hwdaddr1 000173017FE4 PIBS $ echo $hwdaddr2 000173017FE1 PIBS $ echo $hwdaddr3 000173017FE2 In U-Boot this is stored in the following environment variables: * Ethernet Address 0: ethaddr = 000173017FE3 (==> 00:01:73:01:7F:E3) * Ethernet Address 1: eth1addr = 000173017FE4 (==> 00:01:73:01:7F:E4) * Ethernet Address 2: eth2addr = 000173017FE1 (==> 00:01:73:01:7F:E1) * Ethernet Address 3: eth3addr = 000173017FE2 (==> 00:01:73:01:7F:E2) Configure the network interface (ent0 == emac0) ----------------------------------------------- To download the U-Boot image we need to configure the ethernet interface with the following commands: PIBS $ ifconfig ent0 192.168.160.142 netmask 255.255.0.0 up PIBS $ set ipdstaddr0=192.168.1.1 status: writing PIBS variable value to FLASH PIBS $ set bootfilename=/tftpboot/ocotea/u-boot.bin status: writing PIBS variable value to FLASH Please insert correct parameters for your configuration (ip-addresses and file-location). Program U-Boot into soldered User-FLASH --------------------------------------- Please make sure to use a newer version of U-Boot (at least 1.1.3), since older versions don't support running from user-FLASH. To program U-Boot into the soldered user-FLASH use the following command: PIBS $ storefile bin eth 0xffbc0000 This commands loads the file vis ethernet into ram and copies it into the user-FLASH. Switch to U-Boot ---------------- Now you can turn your board off and switch SW1 (U46) to on (= closed). After powering the board you should see the following message: U-Boot 1.1.3 (Apr 5 2005 - 22:59:57) AMCC PowerPC 440 GX Rev. C Board: AMCC 440GX Evaluation Board VCO: 1066 MHz CPU: 533 MHz PLB: 152 MHz OPB: 76 MHz EPB: 76 MHz I2C: ready DRAM: 256 MB FLASH: 5 MB PCI: Bus Dev VenId DevId Class Int In: serial Out: serial Err: serial KGDB: kgdb ready ready Net: ppc_440x_eth0, ppc_440x_eth1, ppc_440x_eth2, ppc_440x_eth3 BEDBUG:ready => April 06 2005, Stefan Roese <sr@denx.de>