📄 hal_platform_setup.h
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#ifndef CYGONCE_HAL_PLATFORM_SETUP_H
#define CYGONCE_HAL_PLATFORM_SETUP_H
//==========================================================================
//
// hal_platform_setup.h
//
//
//
//==========================================================================
//####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.
//
// This exception does not invalidate any other reasons why a work based on
// 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, jskov, rcassebohm
// Grant Edwards <grante@visi.com>
// Date: 2001-07-31
// Purpose:
// Description:
//
//####DESCRIPTIONEND####
//
//========================================================================*/
#include <cyg/hal/plf_io.h>
.macro LED_MACRO x
ldr r0,=KS32C_IOPDATA
ldr r1,[r0]
and r1,r1,#(~0x7)
orr r1,r1,#((0x7 & (~(\x))))
str r1,[r0]
#ifdef CYGSEM_HAL_LED_WITH_DELAY
ldr r1,=0x80000
1: sub r1,r1,#1
cmp r1,#0
bne 1b
#endif
.endm
#define CYGHWR_LED_MACRO \
LED_MACRO (\x)
// Use relative branch since we are going to switch the address space
// around.
#define CYGSEM_HAL_ROM_RESET_USES_JUMP
.macro PLATFORM_RELOCATE
ldr r1,=KS32C_IOPMOD
ldr r2,=0x07 /* set led display to output */
str r2,[r1]
LED 0x0
/* Check that it worked, otherwise try Sync DRAM setup */
ldr r1,=0x00000000
str r1,[r1]
ldr r2,[r1]
cmp r2,r1
beq 99f
/* Sync DRAM mode */
LED 0x1
ldr r3, =0xe7ffff90 /* sdram c+wb disabled, regs @ 0x03ff0000 */
ldr r0, =KS32C_SYSCFG
str r3,[r0]
1: mov r1,pc /* actual address */
sub r1,r1,#8 /* + 8 */
ldr r0,=1b /* address off 1: after remap */
sub r1,r1,r0
ldr r0,=40f
add r0,r0,r1
#ifdef CYG_HAL_STARTUP_ROMRAM
ldr lr,=4f
add lr,lr,r1
ldr r1,=AIM711_ROM0_LA_START
add lr,lr,r1
#else
ldr lr,=99f
#endif
ldmia r0,{r1-r12}
ldr r0,=KS32C_EXTDBWTH
stmia r0,{r1-r12}
mov pc,lr
#ifdef CYG_HAL_STARTUP_ROMRAM
4:
/* Relocate text segment */
ldr r2,=__exception_handlers
ldr r3,=AIM711_ROM0_LA_START
cmp r2,r3
beq 6f
ldr r4,=__rom_data_end
5:
ldr r0,[r3],#4
str r0,[r2],#4
cmp r2,r4
bne 5b
6:
ldr lr,=99f
mov pc,lr
nop
nop
nop
#endif
/* The below are set with a store-multiple instruction */
/* Sync DRAM setup */
/* Flash is 8 bit, DRAM is 32 bit and EXTIO is 8 bit */
/* .long KS32C_EXTDBWTH */
40: .long ( (KS32C_EXTDBWTH_8BIT<<KS32C_EXTDBWTH_DSR0_shift) \
|(KS32C_EXTDBWTH_32BIT<<KS32C_EXTDBWTH_DSD0_shift) \
|(KS32C_EXTDBWTH_8BIT<<KS32C_EXTDBWTH_DSX0_shift) \
|(KS32C_EXTDBWTH_8BIT<<KS32C_EXTDBWTH_DSX2_shift) )
/* Flash at 0x02000000-0x02100000, 5 cycles, 7 cycles */
/* .long KS32C_ROMCON0 */
.long ( (KS32C_ROMCON_PMC_ROM) \
|(KS32C_ROMCON_TPA_5C) \
|(KS32C_ROMCON_TACC_7C) \
|((AIM711_ROM0_LA_START >> 16) << KS32C_ROMCON_BASE_shift) \
|((AIM711_ROM0_LA_END >> 16) << KS32C_ROMCON_NEXT_shift))
/* .long KS32C_ROMCON1 */
.long ( (KS32C_ROMCON_PMC_ROM) \
|(KS32C_ROMCON_TPA_5C) \
|(KS32C_ROMCON_TACC_5C) \
|((0x00000000 >> 16) << KS32C_ROMCON_BASE_shift) \
|((0x00000000 >> 16) << KS32C_ROMCON_NEXT_shift))
/* .long KS32C_ROMCON2 */
.long ( (KS32C_ROMCON_PMC_ROM) \
|(KS32C_ROMCON_TPA_5C) \
|(KS32C_ROMCON_TACC_5C) \
|((0x00000000 >> 16) << KS32C_ROMCON_BASE_shift) \
|((0x00000000 >> 16) << KS32C_ROMCON_NEXT_shift))
/* .long KS32C_ROMCON3 */
.long ( (KS32C_ROMCON_PMC_ROM) \
|(KS32C_ROMCON_TPA_5C) \
|(KS32C_ROMCON_TACC_5C) \
|((0x00000000 >> 16) << KS32C_ROMCON_BASE_shift) \
|((0x00000000 >> 16) << KS32C_ROMCON_NEXT_shift))
/* .long KS32C_ROMCON4 */
.long ( (KS32C_ROMCON_PMC_ROM) \
|(KS32C_ROMCON_TPA_5C) \
|(KS32C_ROMCON_TACC_5C) \
|((0x00000000 >> 16) << KS32C_ROMCON_BASE_shift) \
|((0x00000000 >> 16) << KS32C_ROMCON_NEXT_shift))
/* .long KS32C_ROMCON5 */
.long ( (KS32C_ROMCON_PMC_ROM) \
|(KS32C_ROMCON_TPA_5C) \
|(KS32C_ROMCON_TACC_5C) \
|((0x00000000 >> 16) << KS32C_ROMCON_BASE_shift) \
|((0x00000000 >> 16) << KS32C_ROMCON_NEXT_shift))
/* .long KS32C_DRAMCON0 */
.long ( (KS32C_DRAMCON_RESERVED) \
|(KS32C_DRAMCON_CAN_8) \
|(KS32C_DRAMCON_TRP_4C) \
|(KS32C_DRAMCON_TRC_2C) \
|((AIM711_DRAM_LA_START >> 16) << KS32C_DRAMCON_BASE_shift) \
|((AIM711_DRAM_LA_END >> 16) << KS32C_DRAMCON_NEXT_shift))
/* .long KS32C_DRAMCON1 */
.long ( (KS32C_DRAMCON_RESERVED) \
|(KS32C_DRAMCON_CAN_8) \
|(KS32C_DRAMCON_TRP_2C) \
|(KS32C_DRAMCON_TRC_2C) \
|((0x00000000 >> 16) << KS32C_DRAMCON_BASE_shift) \
|((0x00000000 >> 16) << KS32C_DRAMCON_NEXT_shift))
/* .long KS32C_DRAMCON2 */
.long ( (KS32C_DRAMCON_RESERVED) \
|(KS32C_DRAMCON_CAN_8) \
|(KS32C_DRAMCON_TRP_2C) \
|(KS32C_DRAMCON_TRC_2C) \
|((0x00000000 >> 16) << KS32C_DRAMCON_BASE_shift) \
|((0x00000000 >> 16) << KS32C_DRAMCON_NEXT_shift))
/* .long KS32C_DRAMCON3 */
.long ( (KS32C_DRAMCON_RESERVED) \
|(KS32C_DRAMCON_CAN_8) \
|(KS32C_DRAMCON_TRP_2C) \
|(KS32C_DRAMCON_TRC_2C) \
|((0x00000000 >> 16) << KS32C_DRAMCON_BASE_shift) \
|((0x00000000 >> 16) << KS32C_DRAMCON_NEXT_shift))
/* .long KS32C_REFEXTCON */
.long (((2048+1-(8*CYGNUM_HAL_CPUCLOCK/1000000)) << KS32C_REFEXTCON_RCV_shift) \
|(KS32C_REFEXTCON_TRC_4C) \
|(KS32C_REFEXTCON_REN) \
|(KS32C_REFEXTCON_VSF) \
|(AIM711_EXT0_LA_START >> 16) )
#if 0
50:
.long 0x07113001 /* ROM half-word, RAM word, EXT-IO */
.long 0x21080060 /* ROM 32 - 33 MByte */
.long 0
.long 0
.long 0
.long 0
.long 0
.long 0x0800038e /* RAM 0 - 8 MByte */
.long 0
.long 0
.long 0
.long 0xc01583fd /* Reactivate external Bus */
#endif
99: LED 0x2
ldr r3,=0x00000000
str r3,[r3]
ldr r4,[r3]
cmp r4,r3
beq 15f
11: LED 0x3
b 11b
15: LED 0x4
.endm
#if defined(CYG_HAL_STARTUP_ROM) || defined(CYG_HAL_STARTUP_ROMRAM)
#define PLATFORM_SETUP1 \
PLATFORM_RELOCATE
#else
#define PLATFORM_SETUP1
#endif
//-----------------------------------------------------------------------------
// end of hal_platform_setup.h
#endif // CYGONCE_HAL_PLATFORM_SETUP_H
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