//=============================================================================
//
//      hal_aux.c
//
//      HAL auxiliary objects and code; per platform
//
//=============================================================================
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// -------------------------------------------                              
// This file is part of eCos, the Embedded Configurable Operating System.   
// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
//
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// for more details.                                                        
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//
// As a special exception, if other files instantiate templates or use      
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//=============================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):   hmt
// Contributors:hmt
// Date:        1999-06-08
// Purpose:     HAL aux objects: startup tables.
// Description: Tables for per-platform initialization
//
//####DESCRIPTIONEND####
//
//=============================================================================

#include <pkgconf/hal.h>
#include <pkgconf/hal_powerpc_quicc.h>

#include <cyg/infra/cyg_type.h>
#include <cyg/hal/hal_mem.h>            // HAL memory definitions
#define CYGARC_HAL_COMMON_EXPORT_CPU_MACROS
#include <cyg/hal/ppc_regs.h>
#include <cyg/hal/quicc/ppc8xx.h>
#include <cyg/hal/hal_if.h>             // hal_if_init
#include <cyg/hal/hal_io.h>
#include CYGHWR_MEMORY_LAYOUT_H

// The memory map is weakly defined, allowing the application to redefine
// it if necessary. The regions defined below are the minimum requirements.
CYGARC_MEMDESC_TABLE CYGBLD_ATTRIB_WEAK = {
    // Mapping for the Adder 85x development boards
    CYGARC_MEMDESC_CACHE(   0xfe000000, 0x00800000 ), // ROM region
    CYGARC_MEMDESC_NOCACHE( 0xff000000, 0x00100000 ), // MCP registers
    CYGARC_MEMDESC_NOCACHE( 0xfa000000, 0x00400000 ), // Control/Status+LEDs
    CYGARC_MEMDESC_CACHE(   CYGMEM_REGION_ram, CYGMEM_REGION_ram_SIZE ), // Main memory

    CYGARC_MEMDESC_TABLE_END
};

void
_adder_set_leds(int pat);

//--------------------------------------------------------------------------
// Platform init code.
void
hal_platform_init(void)
{
    volatile EPPC *eppc = (volatile EPPC *)eppc_base();

    // Special routing information for CICR
    eppc->cpmi_cicr &= ~0xFF0000;  // Routing bits
    eppc->cpmi_cicr |= 0x240000;   // SCC2, SCC3 on "normal" bit positions

#if defined(CYGHWR_HAL_POWERPC_ADDER_I)
    eppc->pip_pbpar &= ~0x0000400E;   // PB29..30 AS GPIO
    eppc->pip_pbdir |=  0x0000400E;
    eppc->pip_pbdat  =  0x00004000;
#endif

#if defined(CYGHWR_HAL_POWERPC_ADDER_II)  

#if defined(CYGHWR_HAL_POWERPC_MPC8XX_852T)
    // Special settings - according to manual errata
    eppc->pio_papar &= ~0xffffffff;   // PA manatory settings
    eppc->pio_padir |=  0xffffffff;

    eppc->pip_pbpar &= ~0x0003ff07;   // PB29..31 AS GPIO
    eppc->pip_pbdir |=  0x0003ff07;
    eppc->pip_pbdat  =  0x00010007;
    
    eppc->pio_pcpar &= ~0xffffffff;   // PC manatory settings
    eppc->pio_pcdir |=  0xffffffff;
#endif

    eppc->pip_pbpar &= ~0x00000007;   // PB29..31 AS GPIO for LEDS
    eppc->pip_pbdir |=  0x00000007;
    eppc->pip_pbdat |=  0x00000007;
#endif

    hal_if_init();

    _adder_set_leds(0x1);
}

#ifdef CYGHWR_HAL_POWERPC_ADDER_I
void
_adder_set_leds(int pat)
{
    volatile EPPC *eppc = (volatile EPPC *)eppc_base();

    eppc->pip_pbdat = (eppc->pip_pbdat & ~0x0000000E) | (pat << 1);
}

int
_adder_get_leds(void)
{
    volatile EPPC *eppc = (volatile EPPC *)eppc_base();

    return ((eppc->pip_pbdat & 0x0000000E) >> 1);
}
#endif

#ifdef CYGHWR_HAL_POWERPC_ADDER_II
void
_adder_set_leds(int pat)
{
    volatile EPPC *eppc = (volatile EPPC *)eppc_base();

    eppc->pip_pbdat = (eppc->pip_pbdat & ~0x00000007) |(~(pat&0x0007) );
}

int
_adder_get_leds(void)
{
    volatile EPPC *eppc = (volatile EPPC *)eppc_base();

    return ((~(eppc->pip_pbdat & 0x00000007)) & 0x0007 );
}
#endif

// EOF hal_aux.c