12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091 |
- Work_92105 from Work Microwave is an LPC3250- based board with the
- following features:
- - 64MB SDR DRAM
- - 1 GB SLC NAND, managed through MLC controller.
- - Ethernet
- - Ethernet + PHY SMSC8710
- - I2C:
- - EEPROM (24M01-compatible)
- - RTC (DS1374-compatible)
- - Temperature sensor (DS620)
- - DACs (2 x MAX518)
- - SPI (through SSP interface)
- - Port expander MAX6957
- - LCD display (HD44780-compatible), controlled
- through the port expander and DACs
- Standard SPL and U-Boot binaries
- --------------------------------
- The default 'make' (or the 'make all') command will produce the
- following files:
- 1. spl/u-boot-spl.bin SPL, intended to run from SRAM at address 0.
- This file can be loaded in SRAM through a JTAG
- debugger or through the LPC32XX Service Boot
- mechanism.
- 2. u-boot.bin The raw U-Boot image, which can be loaded in
- DDR through a JTAG debugger (for instance by
- breaking SPL after DDR init), or by a running
- U-Boot through e.g. 'loady' or 'tftp' and then
- executed with 'go'.
- 3. u-boot.img A U-Boot image with a mkimage header prepended.
- SPL assumes (even when loaded through JTAG or
- Service Boot) that such an image will be found
- at offset 0x00040000 in NAND.
- NAND cold-boot binaries
- -----------------------
- The board can boot entirely from power-on with only SPL and U-Boot in
- NAND. The LPC32XX-specific 'make lpc32xx-full.bin' command will produce
- (in addition to spl/u-boot-spl.bin and u-boot.img if they were not made
- already) the following files:
- 4. lpc32xx-spl.img spl/u-boot-spl.bin, with a LPC32XX boot header
- prepended. This header is required for the ROM
- code to load SPL into SRAM and branch into it.
- The content of this file is expected to reside
- in NAND at addresses 0x00000000 and 0x00020000
- (two copies).
- 5. lpc32xx-boot-0.bin lpc32xx-spl.img, padded with 0xFF bytes to a
- size of 0x20000 bytes. This file covers exactly
- the reserved area for the first bootloader copy
- in NAND.
- 6. lpc32xx-boot-1.bin Same as lpc32xx-boot-0.bin. This is intended to
- be used as the second bootloader copy.
- 7. lpc32xx-full.bin lpc32xx-boot-0.bin, lpc32xx-boot-1.bin and
- u-boot.img concatenated. This file represents
- the content of whole bootloader as present in
- NAND at offset 00x00000000.
- Flashing instructions
- ---------------------
- The following assumes a working U-Boot on the target, with the ability
- to load files into DDR.
- To update the whole bootloader:
- nand erase 0x00000000 0x80000
- (load lpc32xx-full.bin at location $loadaddr)
- nand write $loadaddr 0x00000000 $filesize
- To update SPL only (note the double nand write) :
- nand erase 0x00000000 0x40000
- (load lpc32xx-spl.img or lpc32xx-boot-N.bin at location $loadaddr)
- nand write $loadaddr 0x00000000 $filesize
- nand write $loadaddr 0x00020000 $filesize
- To update U-Boot only:
- nand erase 0x00040000 0x40000
- (load u-boot.img at location $loadaddr)
- nand write $loadaddr 0x00040000 $filesize
|