source: rtems/c/src/lib/libbsp/sparc/leon3/include/bsp.h @ 93b000e

4.115
Last change on this file since 93b000e was 93b000e, checked in by Daniel Cederman <cederman@…>, on Oct 1, 2014 at 11:53:03 AM

bsp/leon3: Replace the define LEON3_MP_IRQ with a weakly linked variable

The LEON3_MP_IRQ define is used to pick the IRQ to be used by the
shared memory driver and for inter-processor interrupts. On some LEON3
systems, for example the GR712RC, the default value of 14 is not suitable.
To make this value configurable from the application, it is replaced with
a weakly linked variable that can be overridden from the application.

  • Property mode set to 100644
File size: 6.0 KB
Line 
1/**
2 * @file
3 *
4 * @ingroup sparc_leon3
5 *
6 * @brief Global BSP Definitions.
7 */
8
9/*  bsp.h
10 *
11 *  This include file contains all SPARC simulator definitions.
12 *
13 *  COPYRIGHT (c) 1989-1998.
14 *  On-Line Applications Research Corporation (OAR).
15 *
16 *  The license and distribution terms for this file may be
17 *  found in the file LICENSE in this distribution or at
18 *  http://www.rtems.org/license/LICENSE.
19 *
20 *  Ported to ERC32 implementation of the SPARC by On-Line Applications
21 *  Research Corporation (OAR) under contract to the European Space
22 *  Agency (ESA).
23 *
24 *  ERC32 modifications of respective RTEMS file: COPYRIGHT (c) 1995.
25 *  European Space Agency.
26 */
27
28#ifndef _BSP_H
29#define _BSP_H
30
31#ifdef __cplusplus
32extern "C" {
33#endif
34
35#include <bspopts.h>
36#include <bsp/default-initial-extension.h>
37
38#include <rtems.h>
39#include <leon.h>
40#include <rtems/clockdrv.h>
41#include <rtems/console.h>
42#include <rtems/irq-extension.h>
43
44/**
45 *  @defgroup sparc_leon3 LEON3 Support
46 *
47 *  @ingroup bsp_sparc
48 *
49 *  @brief LEON3 support package
50 *
51 */
52
53/* SPARC CPU variant: LEON3 */
54#define LEON3 1
55
56/*
57 *  BSP provides its own Idle thread body
58 */
59void *bsp_idle_thread( uintptr_t ignored );
60#define BSP_IDLE_TASK_BODY bsp_idle_thread
61
62/* Maximum supported APBUARTs by BSP */
63#define BSP_NUMBER_OF_TERMIOS_PORTS 8
64
65/* Make sure maximum number of consoles fit in filesystem */
66#define BSP_MAXIMUM_DEVICES 8
67
68/*
69 * Network driver configuration
70 */
71struct rtems_bsdnet_ifconfig;
72extern int rtems_leon_open_eth_driver_attach(
73  struct rtems_bsdnet_ifconfig *config,
74  int attach
75);
76extern int rtems_smc91111_driver_attach_leon3(
77  struct rtems_bsdnet_ifconfig *config,
78  int attach
79);
80extern int rtems_leon_greth_driver_attach(
81  struct rtems_bsdnet_ifconfig *config,
82  int attach
83);
84
85#define RTEMS_BSP_NETWORK_DRIVER_NAME_OPENETH "open_eth1"
86#define RTEMS_BSP_NETWORK_DRIVER_ATTACH_OPENETH   \
87    rtems_leon_open_eth_driver_attach
88#define RTEMS_BSP_NETWORK_DRIVER_NAME_SMC91111 "smc_eth1"
89#define RTEMS_BSP_NETWORK_DRIVER_ATTACH_SMC91111 \
90    rtems_smc91111_driver_attach_leon3
91#define RTEMS_BSP_NETWORK_DRIVER_NAME_GRETH "gr_eth1"
92#define RTEMS_BSP_NETWORK_DRIVER_ATTACH_GRETH \
93    rtems_leon_greth_driver_attach
94
95#ifndef RTEMS_BSP_NETWORK_DRIVER_NAME
96#define RTEMS_BSP_NETWORK_DRIVER_NAME   RTEMS_BSP_NETWORK_DRIVER_NAME_GRETH
97#define RTEMS_BSP_NETWORK_DRIVER_ATTACH RTEMS_BSP_NETWORK_DRIVER_ATTACH_GRETH
98#endif
99
100#define HAS_SMC91111
101
102/* Configure GRETH driver */
103#define GRETH_SUPPORTED
104#define GRETH_MEM_LOAD(addr) leon_r32_no_cache(addr)
105
106extern int   CPU_SPARC_HAS_SNOOPING;
107
108/* Constants */
109
110/*
111 *  Information placed in the linkcmds file.
112 */
113
114extern int   RAM_START;
115extern int   RAM_END;
116extern int   RAM_SIZE;
117
118extern int   PROM_START;
119extern int   PROM_END;
120extern int   PROM_SIZE;
121
122extern int   CLOCK_SPEED;
123
124extern int   end;        /* last address in the program */
125
126/* miscellaneous stuff assumed to exist */
127
128rtems_isr_entry set_vector(                     /* returns old vector */
129    rtems_isr_entry     handler,                /* isr routine        */
130    rtems_vector_number vector,                 /* vector number      */
131    int                 type                    /* RTEMS or RAW intr  */
132);
133
134void BSP_fatal_return( void );
135
136void bsp_spurious_initialize( void );
137
138/* Allocate 8-byte aligned non-freeable pre-malloc() memory. The function
139 * can be called at any time. The work-area will shrink when called before
140 * bsp_work_area_initialize(). malloc() is called to get memory when this
141 * function is called after bsp_work_area_initialize().
142 */
143void *bsp_early_malloc(int size);
144
145/* Interrupt Service Routine (ISR) pointer */
146typedef void (*bsp_shared_isr)(void *arg);
147
148/* Initializes the Shared System Interrupt service */
149extern void BSP_shared_interrupt_init(void);
150
151/* Registers a shared IRQ handler, and enable it at IRQ controller. Multiple
152 * interrupt handlers may use the same IRQ number, all ISRs will be called
153 * when an interrupt on that line is fired.
154 *
155 * Arguments
156 *  irq       System IRQ number
157 *  info      Optional Name of IRQ source
158 *  isr       Function pointer to the ISR
159 *  arg       Second argument to function isr
160 */
161static __inline__ int BSP_shared_interrupt_register
162       (
163       int irq,
164       const char *info,
165       bsp_shared_isr isr,
166       void *arg
167       )
168{
169       return rtems_interrupt_handler_install(irq, info,
170                                       RTEMS_INTERRUPT_SHARED, isr, arg);
171}
172
173/* Unregister previously registered shared IRQ handler.
174 *
175 * Arguments
176 *  irq       System IRQ number
177 *  isr       Function pointer to the ISR
178 *  arg       Second argument to function isr
179 */
180static __inline__ int BSP_shared_interrupt_unregister
181       (
182       int irq,
183       bsp_shared_isr isr,
184       void *arg
185       )
186{
187       return rtems_interrupt_handler_remove(irq, isr, arg);
188}
189
190/* Clear interrupt pending on IRQ controller, this is typically done on a
191 * level triggered interrupt source such as PCI to avoid taking double IRQs.
192 * In such a case the interrupt source must be cleared first on LEON, before
193 * acknowledging the IRQ with this function.
194 *
195 * Arguments
196 *  irq       System IRQ number
197 */
198extern void BSP_shared_interrupt_clear(int irq);
199
200/* Enable Interrupt. This function will unmask the IRQ at the interrupt
201 * controller. This is normally done by _register(). Note that this will
202 * affect all ISRs on this IRQ.
203 *
204 * Arguments
205 *  irq       System IRQ number
206 */
207extern void BSP_shared_interrupt_unmask(int irq);
208
209/* Disable Interrupt. This function will mask one IRQ at the interrupt
210 * controller. This is normally done by _unregister().  Note that this will
211 * affect all ISRs on this IRQ.
212 *
213 * Arguments
214 *  irq         System IRQ number
215 */
216extern void BSP_shared_interrupt_mask(int irq);
217
218/* Irq used by the shared memory driver and for inter-processor interrupts.
219 * The variable is weakly linked. Redefine the variable in your application
220 * to override the BSP default.
221 * See startup/bspsmp.c for the default value.
222 */
223extern unsigned char LEON3_mp_irq;
224
225#ifdef __cplusplus
226}
227#endif
228
229#endif
230
231
Note: See TracBrowser for help on using the repository browser.