1 #ifndef CYGONCE_HAL_PLATFORM_SETUP_H
2 #define CYGONCE_HAL_PLATFORM_SETUP_H
4 /*=============================================================================
6 // hal_platform_setup.h
8 // Platform specific support for HAL (assembly code)
10 //=============================================================================
11 //####ECOSGPLCOPYRIGHTBEGIN####
12 // -------------------------------------------
13 // This file is part of eCos, the Embedded Configurable Operating System.
14 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
15 // Copyright (C) 2003 Nick Garnett <nickg@calivar.com>
17 // eCos is free software; you can redistribute it and/or modify it under
18 // the terms of the GNU General Public License as published by the Free
19 // Software Foundation; either version 2 or (at your option) any later version.
21 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
22 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
23 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
26 // You should have received a copy of the GNU General Public License along
27 // with eCos; if not, write to the Free Software Foundation, Inc.,
28 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
30 // As a special exception, if other files instantiate templates or use macros
31 // or inline functions from this file, or you compile this file and link it
32 // with other works to produce a work based on this file, this file does not
33 // by itself cause the resulting work to be covered by the GNU General Public
34 // License. However the source code for this file must still be made available
35 // in accordance with section (3) of the GNU General Public License.
37 // This exception does not invalidate any other reasons why a work based on
38 // this file might be covered by the GNU General Public License.
40 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
41 // at http://sources.redhat.com/ecos/ecos-license/
42 // -------------------------------------------
43 //####ECOSGPLCOPYRIGHTEND####
44 //=============================================================================
45 //#####DESCRIPTIONBEGIN####
48 // Contributors:gthomas, tdrury, nickg
50 // Purpose: AT91/EB40A platform specific support routines
52 // Usage: #include <cyg/hal/hal_platform_setup.h>
54 //####DESCRIPTIONEND####
56 //===========================================================================*/
58 #include <cyg/hal/var_io.h>
63 str r1,[r0,#AT91_PIO_PER]
64 str r1,[r0,#AT91_PIO_OER]
72 str r1,[r0,#AT91_PIO_SODR]
74 str r1,[r0,#AT91_PIO_CODR]
83 #define CYGHWR_LED_MACRO _led \x
85 #if defined(CYG_HAL_STARTUP_ROM) || defined(CYG_HAL_STARTUP_ROMRAM)
90 ldr r10,=_InitMemory // Initialize memory controller
91 movs r0,pc,lsr #20 // If ROM startup, PC < 0x100000
92 moveq r10,r10,lsl #12 // mask address to low 20 bits
94 ldmia r10!,{r0-r9,r11-r12} // Table of initialization constants
95 #if defined(CYG_HAL_STARTUP_ROMRAM)
101 stmia r11!,{r0-r9} // Write to controller
102 mov pc,r12 // Change address space, break pipeline
104 .long 0x01002535 // 0x01000000, 16MB, 2 cycles after transfer, 16-bit, 6 wait states
105 .long 0x02002121 // 0x02000000, 16MB, 0 cycles after transfer, 16-bit, 1 wait state
106 .long 0x20003E3E // 0x20000000, 1MB, 7 cycles after transfer, 8-bit, 8 wait states
107 .long 0x30000000 // unused
108 .long 0x40000000 // unused
109 .long 0x50000000 // unused
110 .long 0x60000000 // unused
111 .long 0x70000000 // unused
112 .long 0x00000001 // REMAP commande
113 .long 0x00000006 // 7 memory regions, standard read
114 .long AT91_EBI // External Bus Interface address
115 .long 10f // address where to jump
117 #if defined(CYG_HAL_STARTUP_ROMRAM)
118 ldr r0,=0x01000000 // Relocate FLASH/ROM to on-chip RAM
119 ldr r1,=0x02000000 // RAM base & length
129 ldr r0,=AT91_PS // Power saving interface
130 ldr r1,=0xFFFFFFFF // Enable all peripheral [clocks]
131 str r1,[r0,#AT91_PS_PCER]
132 ldr r0,=AT91_PIO // Disable PIO (so peripherals can use bits)
133 ldr r1,=0x0070FE49 // UART, FIQ, EINT, Timer clocks
134 str r1,[r0,#AT91_PIO_PDR]
135 ldr r1,=0x000001B6 // LEDs
136 str r1,[r0,#AT91_PIO_OER]
137 str r1,[r0,#AT91_PIO_SODR]
140 #define CYGSEM_HAL_ROM_RESET_USES_JUMP
141 #define PLATFORM_SETUP1 _setup
143 #define PLATFORM_SETUP1 _led_init
146 //-----------------------------------------------------------------------------
147 // end of hal_platform_setup.h
148 #endif // CYGONCE_HAL_PLATFORM_SETUP_H