u-boot

History

Simon Glass e895a4b06f fdt: Allow ft_board_setup() to report failure This function can fail if the device tree runs out of space. Rather than silently booting with an incomplete device tree, allow the failure to be detected. Unfortunately this involves changing a lot of places in the code. I have not changed behvaiour to return an error where one is not currently returned, to avoid unexpected breakage. Eventually it would be nice to allow boards to register functions to be called to update the device tree. This would avoid all the many functions to do this. However it's not clear yet if this should be done using driver model or with a linker list. This work is left for later. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de>		2014-11-21 04:43:15 +01:00
..
Kconfig	kconfig: remove redundant "string" type in arch and board Kconfigs	2014-09-13 16:43:55 -04:00
MAINTAINERS	MAINTAINERS: comment out blank M: field	2014-09-24 18:30:28 -04:00
Makefile	board: powerpc: convert makefiles to Kbuild style	2013-11-01 11:42:12 -04:00
README	powerpc/mpc85xx:Increase binary size for P, B & T series boards.	2014-01-21 14:06:30 -08:00
cpld.c	Add GPL-2.0+ SPDX-License-Identifier to source files	2013-07-24 09:44:38 -04:00
cpld.h	Add GPL-2.0+ SPDX-License-Identifier to source files	2013-07-24 09:44:38 -04:00
ddr.c	Driver/DDR: Moving Freescale DDR driver to a common driver	2013-11-25 11:43:43 -08:00
eth.c	Add GPL-2.0+ SPDX-License-Identifier to source files	2013-07-24 09:44:38 -04:00
p2041rdb.c	fdt: Allow ft_board_setup() to report failure	2014-11-21 04:43:15 +01:00

README

Overview
=========
The P2041 Processor combines four Power Architecture processor cores
with high-performance datapath acceleration architecture(DPAA), CoreNet
fabric infrastructure, as well as network and peripheral bus interfaces
required for networking, telecom/datacom, wireless infrastructure, and
military/aerospace applications.

P2041RDB board is a quad core platform supporting the P2041 processor
of QorIQ DPAA series.

Boot from NOR flash
===================
1. Build image
	make P2041RDB_config
	make all

2. Program image
	=> tftp 1000000 u-boot.bin
	=> protect off all
	=> erase eff40000 efffffff
	=> cp.b 1000000 eff40000 c0000

3. Program RCW
	=> tftp 1000000 rcw.bin
	=> protect off all
	=> erase e8000000 e801ffff
	=> cp.b 1000000 e8000000 50

4. Program FMAN Firmware ucode
	=> tftp 1000000 ucode.bin
	=> protect off all
	=> erase eff00000 eff3ffff
	=> cp.b 1000000 eff00000 2000

5. Change DIP-switch
	SW1[1-5] = 10110
	Note: 1 stands for 'on', 0 stands for 'off'

Boot from SDCard
===================
1. Build image
	make P2041RDB_SDCARD_config
	make all

2. Generate PBL imge
   Use PE tool to produce a image used to be programed to
   SDCard which contains RCW and U-Boot image.

3. Program the PBL image to SDCard
	=> tftp 1000000 pbl_sd.bin
	=> mmcinfo
	=> mmc write 1000000 8 672

4. Program FMAN Firmware ucode
	=> tftp 1000000 ucode.bin
	=> mmc write 1000000 690 10

5. Change DIP-switch
	SW1[1-5] = 01100
	Note: 1 stands for 'on', 0 stands for 'off'

Boot from SPI flash
===================
1. Build image
	make P2041RDB_SPIFLASH_config
	make all

2. Generate PBL imge
   Use PE tool to produce a image used to be programed to
   SPI flash which contains RCW and U-Boot image.

3. Program the PBL image to SPI flash
	=> tftp 1000000 pbl_spi.bin
	=> spi probe 0
	=> sf erase 0 100000
	=> sf write 1000000 0 $filesize

4. Program FMAN Firmware ucode
	=> tftp 1000000 ucode.bin
	=> sf erase 110000 10000
	=> sf write 1000000 110000 $filesize

5. Change DIP-switch
	SW1[1-5] = 10100
	Note: 1 stands for 'on', 0 stands for 'off'

CPLD command
============
The CPLD is used to control the power sequence and some serdes lane
mux function.

cpld reset			 - hard reset to default bank
cpld reset altbank		 - reset to alternate bank
cpld lane_mux <lane> <mux_value> - set multiplexed lane pin
		lane 6: 0 -> slot1 (Default)
			1 -> SGMII
		lane a: 0 -> slot2 (Default)
			1 -> AURORA
		lane c: 0 -> slot2 (Default)
			1 -> SATA0
		lane d: 0 -> slot2 (Default)
			1 -> SATA1

Using the Device Tree Source File
=================================
To create the DTB (Device Tree Binary) image file, use a command
similar to this:
	dtc -O dtb -b 0 -p 1024 p2041rdb.dts > p2041rdb.dtb

Or use the following command:
	{linux-2.6}/make p2041rdb.dtb ARCH=powerpc

then the dtb file will be generated under the following directory:
	{linux-2.6}/arch/powerpc/boot/p2041rdb.dtb

Booting Linux
=============
Place a linux uImage in the TFTP disk area.
	tftp 1000000 uImage
	tftp 2000000 rootfs.ext2.gz.uboot
	tftp 3000000 p2041rdb.dtb
	bootm 1000000 2000000 3000000