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//=============================================================================

//

//      platform.c

//

//      M5272C3 platform code

//

//=============================================================================

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// This file is part of eCos, the Embedded Configurable Operating System.   

// Copyright (C) 2003, 2004, 2006, 2008 Free Software Foundation, Inc.      

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//=============================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):   bartv

// Date:        2003-06-04

//

//####DESCRIPTIONEND####

//=============================================================================

#include <pkgconf/system.h>

#include <pkgconf/hal.h>

#include <pkgconf/hal_m68k_m5272c3.h>

#include <cyg/hal/hal_arch.h>

#include <cyg/hal/hal_intr.h>

#include <cyg/hal/hal_cache.h>

#include <cyg/hal/hal_io.h>

#include <cyg/hal/hal_diag.h>

#include <cyg/hal/hal_if.h>

// ----------------------------------------------------------------------------

// Platform initialization. This is called early on from

// hal_m68k_startup(), once the C environment has been set up. We are

// running on the startup stack and interrupts are disabled. It is

// assumed that the memory map is already sane - either the ROM

// monitor or the assembler startup code should have taken care of

// that.

//

// For ROM/ROMFFE startup the assumption is that we have just come

// out of reset, either because of a hard reset or because a soft

// reset activated the watchdog. Hence we can assume all peripherals

// are at their default settings.

void

hal_m68k_m5272c3_init(void)

{

    // Start with the hardware. If this code is reached from a hard

    // reset, RedBoot or dBUG then most of the hardware should be in a

    // reasonable state. For a soft reset assume that the watchdog has

    // been used so again everything should be in a reasonable state.

    // Hence we only need to worry about registers where the default

    // settings are inappropriate.

    // After a power-up the ethernet phy needs a bit of time to negotiate

    // the link. Without this delay packets appear to go out but are

    // just lost, which is a problem for bootp.

#if defined(CYGPKG_DEVS_ETH_MCFxxxx) && (defined(CYG_HAL_STARTUP_ROM) || defined(CYG_HAL_STARTUP_ROMFFE))

    HAL_DELAY_US(10000);

#endif    

}