1 //=============================================================================
5 // HAL auxiliary objects and code; per platform
7 //=============================================================================
8 //####ECOSGPLCOPYRIGHTBEGIN####
9 // -------------------------------------------
10 // This file is part of eCos, the Embedded Configurable Operating System.
11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
12 // Copyright (C) 2002, 2003, 2004 Gary Thomas
14 // eCos is free software; you can redistribute it and/or modify it under
15 // the terms of the GNU General Public License as published by the Free
16 // Software Foundation; either version 2 or (at your option) any later version.
18 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
19 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
20 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
23 // You should have received a copy of the GNU General Public License along
24 // with eCos; if not, write to the Free Software Foundation, Inc.,
25 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
27 // As a special exception, if other files instantiate templates or use macros
28 // or inline functions from this file, or you compile this file and link it
29 // with other works to produce a work based on this file, this file does not
30 // by itself cause the resulting work to be covered by the GNU General Public
31 // License. However the source code for this file must still be made available
32 // in accordance with section (3) of the GNU General Public License.
34 // This exception does not invalidate any other reasons why a work based on
35 // this file might be covered by the GNU General Public License.
37 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
38 // at http://sources.redhat.com/ecos/ecos-license/
39 // -------------------------------------------
40 //####ECOSGPLCOPYRIGHTEND####
41 //=============================================================================
42 //#####DESCRIPTIONBEGIN####
47 // Purpose: HAL aux objects: startup tables.
48 // Description: Tables for per-platform initialization
50 //####DESCRIPTIONEND####
52 //=============================================================================
54 #include <pkgconf/hal.h>
55 #include <pkgconf/hal_powerpc_quicc.h>
57 #include <cyg/infra/cyg_type.h>
58 #include <cyg/hal/hal_mem.h> // HAL memory definitions
59 #define CYGARC_HAL_COMMON_EXPORT_CPU_MACROS
60 #include <cyg/hal/ppc_regs.h>
61 #include <cyg/hal/quicc/ppc8xx.h>
62 #include <cyg/hal/hal_if.h> // hal_if_init
63 #include <cyg/hal/hal_io.h>
64 #include CYGHWR_MEMORY_LAYOUT_H
66 // The memory map is weakly defined, allowing the application to redefine
67 // it if necessary. The regions defined below are the minimum requirements.
68 CYGARC_MEMDESC_TABLE CYGBLD_ATTRIB_WEAK = {
69 // Mapping for the Adder 85x development boards
70 CYGARC_MEMDESC_CACHE( 0xfe000000, 0x00800000 ), // ROM region
71 CYGARC_MEMDESC_NOCACHE( 0xff000000, 0x00100000 ), // MCP registers
72 CYGARC_MEMDESC_NOCACHE( 0xfa000000, 0x00400000 ), // Control/Status+LEDs
73 CYGARC_MEMDESC_CACHE( CYGMEM_REGION_ram, CYGMEM_REGION_ram_SIZE ), // Main memory
75 CYGARC_MEMDESC_TABLE_END
79 _adder_set_leds(int pat);
81 //--------------------------------------------------------------------------
82 // Platform init code.
84 hal_platform_init(void)
86 volatile EPPC *eppc = (volatile EPPC *)eppc_base();
88 // Special routing information for CICR
89 eppc->cpmi_cicr &= ~0xFF0000; // Routing bits
90 eppc->cpmi_cicr |= 0x240000; // SCC2, SCC3 on "normal" bit positions
92 #if defined(CYGHWR_HAL_POWERPC_ADDER_I)
93 eppc->pip_pbpar &= ~0x0000400E; // PB29..30 AS GPIO
94 eppc->pip_pbdir |= 0x0000400E;
95 eppc->pip_pbdat = 0x00004000;
98 #if defined(CYGHWR_HAL_POWERPC_ADDER_II)
100 #if defined(CYGHWR_HAL_POWERPC_MPC8XX_852T)
101 // Special settings - according to manual errata
102 eppc->pio_papar &= ~0xffffffff; // PA manatory settings
103 eppc->pio_padir |= 0xffffffff;
105 eppc->pip_pbpar &= ~0x0003ff07; // PB29..31 AS GPIO
106 eppc->pip_pbdir |= 0x0003ff07;
107 eppc->pip_pbdat = 0x00010007;
109 eppc->pio_pcpar &= ~0xffffffff; // PC manatory settings
110 eppc->pio_pcdir |= 0xffffffff;
113 eppc->pip_pbpar &= ~0x00000007; // PB29..31 AS GPIO for LEDS
114 eppc->pip_pbdir |= 0x00000007;
115 eppc->pip_pbdat |= 0x00000007;
120 _adder_set_leds(0x1);
123 #ifdef CYGHWR_HAL_POWERPC_ADDER_I
125 _adder_set_leds(int pat)
127 volatile EPPC *eppc = (volatile EPPC *)eppc_base();
129 eppc->pip_pbdat = (eppc->pip_pbdat & ~0x0000000E) | (pat << 1);
133 _adder_get_leds(void)
135 volatile EPPC *eppc = (volatile EPPC *)eppc_base();
137 return ((eppc->pip_pbdat & 0x0000000E) >> 1);
141 #ifdef CYGHWR_HAL_POWERPC_ADDER_II
143 _adder_set_leds(int pat)
145 volatile EPPC *eppc = (volatile EPPC *)eppc_base();
147 eppc->pip_pbdat = (eppc->pip_pbdat & ~0x00000007) |(~(pat&0x0007) );
151 _adder_get_leds(void)
153 volatile EPPC *eppc = (volatile EPPC *)eppc_base();
155 return ((~(eppc->pip_pbdat & 0x00000007)) & 0x0007 );