mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-05 02:36:39 +09:00
3e38691e8f
Add IDMA example code (tested on 8260 only) * Add support for Purple Board (MIPS64 5Kc) * Add support for MIPS64 5Kc CPUs * Fix missing setting of "loadaddr" and "bootfile" on ARM and MIPS * Patch by Denis Peter, 04 Apr 2003: - update MIP405-4 board * Patches by Denis Peter, 03 April 2003: - fix PCI IRQs on MPL boards - fix two more un-relocated pointer problems * Fix behaviour of "run" command: - print error message iv variable does not exist - terminate processing of arguments in case of error * Patches by Peter Figuli, 10 Mar 2003 - Add support for BTUART on PXA platform - Add support for WEP EP250 (PXA) board * Fix flash problems on INCA-IP; add tool to allow bruning images to flash using a BDI2000 * Implement fix for I2C Edge Conditions problem for all boards that use the bit-banging driver (common/soft_i2c.c) * Add patches by Robert Schwebel, 31 Mar 2003: - csb226 board: bring in sync with innokom/memsetup.S - csb226 board: fix MDREFR handling - misc doc fixes / extensions - innokom board: cleanup, MDREFR fix in memsetup.S, config update - add BOOT_PROGRESS to armlinux.c
45 lines
1.4 KiB
Plaintext
45 lines
1.4 KiB
Plaintext
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Flash programming on the INCA-IP board is complicated because of the
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EBU swapping unit. A BDI2000 can be used for flash programming only
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if the EBU swapping unit is enabled; otherwise it will not detect the
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flash memory. But the EBU swapping unit is disadbled after reset, so
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if you program some code to flash with the swapping unit on, it will
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not be runnable with the swapping unit off.
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The consequence is that you have to write a pre-swapped image to
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flash using the BDI2000. A simple host-side tool "inca-swap-bytes" is
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provided in the "tools/" directory. Use it as follows:
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bash$ ./inca-swap-bytes <u-boot.bin >u-boot.bin.swp
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Note that the current BDI config file _disables_ the EBU swapping
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unit for the flash bank 0. To enable it, (this is required for the
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BDI flash commands to work) uncomment the following line in the
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config file:
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;WM32 0xb8000260 0x404161ff ; Swapping unit enabled
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and comment out
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WM32 0xb8000260 0x004161ff ; Swapping unit disabled
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Alternatively, you can use "mm 0xb8000260 <value>" commands to
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enable/disable the swapping unit manually.
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Just for reference, here is the complete sequence of actions we took
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to install a U-Boot image into flash.
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1. ./inca-swap-bytes <u-boot.bin >u-boot.bin.swp
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2. From BDI:
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mm 0xb8000260 0x404161ff
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erase 0xb0000000
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erase 0xb0010000
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prog 0xb0000000 /tftpboot/INCA/u-boot.bin.swp bin
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mm 0xb8000260 0x004161ff
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go 0xb0000000
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(C) 2003 Wolfgang Denk
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