From e221174377d7e3ee848e014b96430d4c97023e93 Mon Sep 17 00:00:00 2001 From: wdenk Date: Sat, 2 Nov 2002 23:30:20 +0000 Subject: Initial revision --- board/rpxsuper/readme | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 board/rpxsuper/readme (limited to 'board/rpxsuper/readme') diff --git a/board/rpxsuper/readme b/board/rpxsuper/readme new file mode 100644 index 0000000..21267bd --- /dev/null +++ b/board/rpxsuper/readme @@ -0,0 +1,30 @@ +Hi, + +so this is the port to the Embedded Planet RPX Super Board. + +ATTENTION +This code is only tested on the AY-Version, which is an early release with some +hardware bugs. The main problem is that this board uses the default Hard Reset +Configuration Word and not the 4 bytes located at start of FLASH because at +0xFE000000 is no FLASH. The FLASH consists out of 4 chips each 16bits wide. Be +carefull, the bytes are swapped. So DQ0-7 is the high byte, DQ8-15 ist the low +byte. + +The icache can only manually be enabled after reset. +The FLASH and main SDRAM is working with icache enabled. +The local SDRAM can only be used as data memory when icache is enabled. +If U-Boot runs in local SDRAM, TFTP does not work. +The functions in mii_phy.c are all working. Call mii_phy_discover() out of +eth_init() and solve the linker error. +I2C, RTC/NVRAM and PCMCIA are not working yet. + +TODO +The 32MB local SDRAM is working but not shown in the startup messages of +U-Boot. If you locate U-Boot or any other program to this area it won't run. +Turning the ichache off does not solve this problem. + +As I won't buy another RPX Super there might be some little work to do for you +getting this U-Boot port running on the final board. + + +frank.morauf@salzbrenner.com -- cgit v1.1