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- ---------------------------------------------
- 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>
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