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

//

//      hal_aux.c

//

//      HAL auxiliary objects and code; per platform

//

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

// ####ECOSGPLCOPYRIGHTBEGIN####                                            

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

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

// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.

//

// eCos is free software; you can redistribute it and/or modify it under    

// the terms of the GNU General Public License as published by the Free     

// Software Foundation; either version 2 or (at your option) any later      

// version.                                                                 

//

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// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License    

// for more details.                                                        

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// You should have received a copy of the GNU General Public License        

// along with eCos; if not, write to the Free Software Foundation, Inc.,    

// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.            

//

// As a special exception, if other files instantiate templates or use      

// macros or inline functions from this file, or you compile this file      

// and link it with other works to produce a work based on this file,       

// this file does not by itself cause the resulting work to be covered by   

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// General Public License v2.                                               

//

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// on this file might be covered by the GNU General Public License.         

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

// ####ECOSGPLCOPYRIGHTEND####                                              

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

//#####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