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#ifndef CYGONCE_HAL_PLATFORM_SETUP_H

#define CYGONCE_HAL_PLATFORM_SETUP_H

/*=============================================================================

//

//      hal_platform_setup.h

//

//      Platform specific support for HAL (assembly code)

//

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

//####ECOSGPLCOPYRIGHTBEGIN####

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

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

// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, 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.

//

// eCos is distributed in the hope that it will be useful, but WITHOUT ANY

// WARRANTY; without even the implied warranty of MERCHANTABILITY or

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

// for more details.

//

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

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

// 59 Temple Place, Suite 330, Boston, MA 02111-1307 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 the GNU General Public

// License. However the source code for this file must still be made available

// in accordance with section (3) of the GNU General Public License.

//

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

//

// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.

// at http://sources.redhat.com/ecos/ecos-license/

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

//####ECOSGPLCOPYRIGHTEND####

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

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

//

// Author(s):   gthomas

// Contributors:gthomas

// Date:        2001-07-12

// Purpose:     AT91/EB40 platform specific support routines

// Description:

// Usage:       #include <cyg/hal/hal_platform_setup.h>

//

//####DESCRIPTIONEND####

//

//===========================================================================*/

#include <cyg/hal/plf_io.h>

#if defined(CYG_HAL_STARTUP_ROM) || defined(CYG_HAL_STARTUP_ROMRAM)

        .macro  _setup

        ldr     r10,=_InitMemory        // Initialize memory controller

        movs    r0,pc,lsr #20           // If ROM startup, PC < 0x100000

        moveq   r10,r10,lsl #12         //   mask address to low 20 bits

        moveq   r10,r10,lsr #12

        ldmia   r10!,{r0-r9,r11-r12}    // Table of initialization constants

#if defined(CYG_HAL_STARTUP_ROMRAM)

        ldr     r10,=0x0000FFFF

        and     r12,r12,r10

        ldr     r10,=0x01010000

        orr     r12,r12,r10

#endif        

        stmia   r11!,{r0-r9}            // Write to controller

        mov     pc,r12                  // Change address space, break pipeline

_InitMemory:

        .long   0x01002535  // 0x01000000, 16MB,  2 cycles added after transfer, 16-bit, 6 wait states

        .long   0x02002121  // 0x02000000, 16MB,  0 cycles added after transfer, 16-bit, 1 wait state

        .long   0x20000000  // unused

        .long   0x30000000  // unused

        .long   0x40000000  // unused

        .long   0x50000000  // unused

        .long   0x60000000  // unused

        .long   0x70000000  // unused

        .long   0x00000001  // REMAP commande

        .long   0x00000006  // 7 memory regions, standard read

        .long   AT91_EBI    // External Bus Interface address

        .long   10f         // address where to jump

10:

#if defined(CYG_HAL_STARTUP_ROMRAM)

        ldr     r0,=0x01010000          // Relocate FLASH/ROM to on-chip RAM

        ldr     r1,=0x02000000          // RAM base & length

        ldr     r2,=0x02010000

20:     ldr     r3,[r0],#4

        str     r3,[r1],#4

        cmp     r1,r2

        bne     20b

        ldr     r0,=30f

        mov     pc,r0

30:

#endif

        ldr     r0,=AT91_PS             // Power saving interface

        ldr     r1,=0xFFFFFFFF          // Enable all peripheral [clocks]

        str     r1,[r0,#AT91_PS_PCER]

        ldr     r0,=AT91_PIO            // Disable PIO (so peripherals can use bits)

        ldr     r1,=0x0070FE49          // UART, FIQ, EINT, Timer clocks

        str     r1,[r0,#AT91_PIO_PDR]

        ldr     r1,=0x000001B6          // LEDs

        str     r1,[r0,#AT91_PIO_OER]

        str     r1,[r0,#AT91_PIO_SODR]

        .endm

#define CYGSEM_HAL_ROM_RESET_USES_JUMP

#define PLATFORM_SETUP1     _setup

#else

#define PLATFORM_SETUP1

#endif

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

// end of hal_platform_setup.h

#endif // CYGONCE_HAL_PLATFORM_SETUP_H