cvs commit: src/sys/conf options.arm src/sys/arm/conf SKYEYE src/sys/arm/include pmap.h src/sys/arm/at91 at91.c at91_st.c if_ate.c uart_bus_at91usart.c uart_cpu_at91rm9200usart.c uart_dev_at91usart.c

[Olivier Houchard]

cognet      2006-05-13 23:41:16 UTC

  FreeBSD src repository

  Modified files:
    sys/conf             options.arm 
    sys/arm/conf         SKYEYE 
    sys/arm/include      pmap.h 
    sys/arm/at91         at91.c at91_st.c if_ate.c 
                         uart_bus_at91usart.c 
                         uart_cpu_at91rm9200usart.c 
                         uart_dev_at91usart.c 
  Log:
  Resurrect Skyeye support :
  Add a new option, SKYEYE_WORKAROUNDS, which as the name suggests adds
  workarounds for things skyeye doesn't simulate. Specifically :
  - Use USART0 instead of DBGU as the console, make it not use DMA, and           manually provoke an interrupt when we're done in the transmit function.
  - Skyeye maintains an internal counter for clock, but apparently there's
  no way to access it, so hack the timecounter code to return a value which
  is increased at every clock interrupts. This is gross, but I didn't find a
  better way to implement timecounters without hacking Skyeye to get the
  counter value.
  - Force the write-back of PTEs once we're done writing them, even if they
  are supposed to be write-through. I don't know why I have to do that.
  
  Revision  Changes    Path
  1.6       +8 -0      src/sys/arm/at91/at91.c
  1.3       +17 -1     src/sys/arm/at91/at91_st.c
  1.7       +1 -1      src/sys/arm/at91/if_ate.c
  1.3       +5 -7      src/sys/arm/at91/uart_bus_at91usart.c
  1.2       +3 -7      src/sys/arm/at91/uart_cpu_at91rm9200usart.c
  1.6       +12 -12    src/sys/arm/at91/uart_dev_at91usart.c
  1.3       +2 -1      src/sys/arm/conf/SKYEYE
  1.17      +5 -0      src/sys/arm/include/pmap.h
  1.8       +2 -1      src/sys/conf/options.arm