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diff --git a/doc/README.kwbimage b/doc/README.kwbimage new file mode 100644 index 0000000..2a5b3b3 --- /dev/null +++ b/doc/README.kwbimage @@ -0,0 +1,93 @@ +--------------------------------------------- +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> |