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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, 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.

//

// 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.,

// 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

// 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 v2.

//

// This exception does not invalidate any other reasons why a work based

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

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

// ####ECOSGPLCOPYRIGHTEND####

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

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

//

// Author(s):   jani

// Contributors:

// Date:        2004-09-12

// Purpose:     LPC2XXX/LPCMT platform specific support routines

// Description:

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

//

//####DESCRIPTIONEND####

//

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

#include <pkgconf/system.h>

#include <cyg/hal/var_io.h>

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

        .macro  _led_init

        ldr r0,=CYGARC_HAL_LPC2XXX_REG_IO_BASE

        ldr r1,=(1<<12) // GPIO0 pin 12 is LED output

        str r1,[r0,#CYGARC_HAL_LPC2XXX_REG_IODIR]

        .endm

        .macro _led x

        ldr r0,=CYGARC_HAL_LPC2XXX_REG_IO_BASE

        ldr r1,=(1<<12)

        str r1,[r0,#CYGARC_HAL_LPC2XXX_REG_IOCLR]

        ldr r1,=((\x & 1)<<12)

        str r1,[r0,#CYGARC_HAL_LPC2XXX_REG_IOSET]

        .endm

        .macro _pll_init

        ldr r0,=CYGARC_HAL_LPC2XXX_REG_SCB_BASE

        mov r2,#0xAA

        mov r3,#0x55

        mov r1,#1                       // enable PLL   

        str r1,[r0,#CYGARC_HAL_LPC2XXX_REG_PLLCON]

        mov r1,#(0x20 | (CYGNUM_HAL_ARM_LPC2XXX_PLL_MUL - 1))

        str r1,[r0,#CYGARC_HAL_LPC2XXX_REG_PLLCFG]      

        str r2,[r0,#CYGARC_HAL_LPC2XXX_REG_PLLFEED]     // update PLL registers

        str r3,[r0,#CYGARC_HAL_LPC2XXX_REG_PLLFEED]

1:

        ldr r1,[r0,#CYGARC_HAL_LPC2XXX_REG_PLLSTAT]     // wait for it to lock

        ands r1,r1,#(1<<10)

        beq 1b

        mov r1,#3                       // connect PLL

        str r1,[r0,#CYGARC_HAL_LPC2XXX_REG_PLLCON]

        str r2,[r0,#CYGARC_HAL_LPC2XXX_REG_PLLFEED]     // update PLL registers

        str r3,[r0,#CYGARC_HAL_LPC2XXX_REG_PLLFEED]

        .endm

        .macro _mem_init

        mov r0,#0                       // copy first 64 bytes of flash to RAM

        mov r1,#0x40000000

        mov r2,#0x40

1:

        ldr r3,[r0,#4]!

        str r3,[r1,#4]!

        cmps r0,r2

        bne 1b

        ldr r0,=CYGARC_HAL_LPC2XXX_REG_SCB_BASE

        mov r1,#2

        str r1, [r0,#CYGARC_HAL_LPC2XXX_REG_MEMMAP]     // int vectors mapped to RAM

        mov r1,#4

        str r1,[r0,#CYGARC_HAL_LPC2XXX_REG_MAMTIM]      // flash timings

        mov r1,#2

        str r1,[r0,#CYGARC_HAL_LPC2XXX_REG_MAMCR]       // enable full MAM

        .endm

        .macro _gpio_init

        ldr r0,=CYGARC_HAL_LPC2XXX_REG_PIN_BASE // enable  RX and TX on UART0

        ldr r1,=0x00000005

        str r1,[r0,#CYGARC_HAL_LPC2XXX_REG_PINSEL0]

        .endm

#define CYGHWR_LED_MACRO _led \x 

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

#if defined(CYG_HAL_STARTUP_ROM)

        .macro  _setup

        _pll_init

        _mem_init

        _gpio_init

        _led_init

        .endm

#define CYGSEM_HAL_ROM_RESET_USES_JUMP

#else

        .macro  _setup

        .endm

#endif

#define PLATFORM_SETUP1     _setup

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

// end of hal_platform_setup.h

#endif // CYGONCE_HAL_PLATFORM_SETUP_H