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30 lines
1.2 KiB
Text
30 lines
1.2 KiB
Text
Hi,
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so this is the port to the Embedded Planet RPX Super Board.
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ATTENTION
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This code is only tested on the AY-Version, which is an early release with some
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hardware bugs. The main problem is that this board uses the default Hard Reset
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Configuration Word and not the 4 bytes located at start of FLASH because at
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0xFE000000 is no FLASH. The FLASH consists out of 4 chips each 16bits wide. Be
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carefull, the bytes are swapped. So DQ0-7 is the high byte, DQ8-15 ist the low
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byte.
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The icache can only manually be enabled after reset.
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The FLASH and main SDRAM is working with icache enabled.
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The local SDRAM can only be used as data memory when icache is enabled.
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If U-Boot runs in local SDRAM, TFTP does not work.
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The functions in mii_phy.c are all working. Call mii_phy_discover() out of
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eth_init() and solve the linker error.
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I2C, RTC/NVRAM and PCMCIA are not working yet.
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TODO
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The 32MB local SDRAM is working but not shown in the startup messages of
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U-Boot. If you locate U-Boot or any other program to this area it won't run.
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Turning the ichache off does not solve this problem.
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As I won't buy another RPX Super there might be some little work to do for you
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getting this U-Boot port running on the final board.
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frank.morauf@salzbrenner.com
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