mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-05 20:54:31 +00:00
93 lines
3 KiB
Text
93 lines
3 KiB
Text
---------------------------------------------
|
|
Kirkwood Boot Image generation using mkimage
|
|
---------------------------------------------
|
|
|
|
This document describes the U-Boot feature as it
|
|
is implemented for the Kirkwood family of SoCs.
|
|
|
|
The Kirkwood SoC's can boot directly from NAND FLASH,
|
|
SPI FLASH, SATA etc. using its internal bootRom support.
|
|
|
|
for more details refer section 24.2 of Kirkwood functional specifications.
|
|
ref: www.marvell.com/products/embedded.../kirkwood/index.jsp
|
|
|
|
Command syntax:
|
|
--------------
|
|
./tools/mkimage -l <kwboot_file>
|
|
to list the kwb image file details
|
|
|
|
./tools/mkimage -n <board specific configuration file> \
|
|
-T kwbimage -a <start address> -e <execution address> \
|
|
-d <input_raw_binary> <output_kwboot_file>
|
|
|
|
for ex.
|
|
./tools/mkimage -n ./board/Marvell/openrd_base/kwbimage.cfg \
|
|
-T kwbimage -a 0x00600000 -e 0x00600000 \
|
|
-d u-boot.bin u-boot.kwb
|
|
|
|
kwimage support available with mkimage utility will generate kirkwood boot
|
|
image that can be flashed on the board NAND/SPI flash
|
|
|
|
Board specific configuration file specifications:
|
|
------------------------------------------------
|
|
1. This file must present in the $(BOARDDIR) and the name should be
|
|
kwbimage.cfg (since this is used in Makefile)
|
|
2. This file can have empty lines and lines starting with "#" as first
|
|
character to put comments
|
|
3. This file can have configuration command lines as mentioned below,
|
|
any other information in this file is treated as invalid.
|
|
|
|
Configuration command line syntax:
|
|
---------------------------------
|
|
1. Each command line is must have two strings, first one command or address
|
|
and second one data string
|
|
2. Following are the valid command strings and associated data strings:-
|
|
Command string data string
|
|
-------------- -----------
|
|
BOOT_FROM nand/spi/sata
|
|
NAND_ECC_MODE default/rs/hamming/disabled
|
|
NAND_PAGE_SIZE any uint16_t hex value
|
|
SATA_PIO_MODE any uint32_t hex value
|
|
DDR_INIT_DELAY any uint32_t hex value
|
|
DATA regaddr and regdara hex value
|
|
you can have maximum 55 such register programming commands
|
|
|
|
3. All commands are optional to program
|
|
|
|
Typical example of kwimage.cfg file:
|
|
-----------------------------------
|
|
|
|
# Boot Media configurations
|
|
BOOT_FROM nand
|
|
NAND_ECC_MODE default
|
|
NAND_PAGE_SIZE 0x0800
|
|
|
|
# Configure RGMII-0 interface pad voltage to 1.8V
|
|
DATA 0xFFD100e0 0x1b1b1b9b
|
|
# DRAM Configuration
|
|
DATA 0xFFD01400 0x43000c30
|
|
DATA 0xFFD01404 0x37543000
|
|
DATA 0xFFD01408 0x22125451
|
|
DATA 0xFFD0140C 0x00000a33
|
|
DATA 0xFFD01410 0x000000cc
|
|
DATA 0xFFD01414 0x00000000
|
|
DATA 0xFFD01418 0x00000000
|
|
DATA 0xFFD0141C 0x00000C52
|
|
DATA 0xFFD01420 0x00000040
|
|
DATA 0xFFD01424 0x0000F17F
|
|
DATA 0xFFD01428 0x00085520
|
|
DATA 0xFFD0147C 0x00008552
|
|
DATA 0xFFD01504 0x0FFFFFF1
|
|
DATA 0xFFD01508 0x10000000
|
|
DATA 0xFFD0150C 0x0FFFFFF5
|
|
DATA 0xFFD01514 0x00000000
|
|
DATA 0xFFD0151C 0x00000000
|
|
DATA 0xFFD01494 0x00030000
|
|
DATA 0xFFD01498 0x00000000
|
|
DATA 0xFFD0149C 0x0000E803
|
|
DATA 0xFFD01480 0x00000001
|
|
# End of Header extension
|
|
DATA 0x0 0x0
|
|
|
|
------------------------------------------------
|
|
Author: Prafulla Wadaskar <prafulla@marvell.com>
|