source: rtems/c/src/lib/libbsp/powerpc/mvme5500/irq/irq.h @ c499856

4.115
Last change on this file since c499856 was c499856, checked in by Chris Johns <chrisj@…>, on Mar 20, 2014 at 9:10:47 PM

Change all references of rtems.com to rtems.org.

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File size: 5.4 KB
Line 
1/* irq.h
2 *
3 *  This include file describe the data structure and the functions implemented
4 *  by rtems to write interrupt handlers.
5 *
6 *  CopyRight (C) 1999 valette@crf.canon.fr
7 *
8 *  This code is heavilly inspired by the public specification of STREAM V2
9 *  that can be found at :
10 *
11 *      <http://www.chorus.com/Documentation/index.html> by following
12 *  the STREAM API Specification Document link.
13 *
14 *  The license and distribution terms for this file may be
15 *  found in the file LICENSE in this distribution or at
16 *  http://www.rtems.org/license/LICENSE.
17 *
18 * Copyright 2004, 2005 Brookhaven National Laboratory and
19 *                 Shuchen Kate Feng <feng1@bnl.gov>
20 *
21 *    - modified shared/irq/irq.h for Mvme5500 (no ISA devices/PIC)
22 *    - Discovery GT64260 interrupt controller instead of 8259.
23 *    - Added support for software IRQ priority levels.
24 *    - modified to optimize the IRQ latency and handling
25 */
26
27#ifndef LIBBSP_POWERPC_MVME5500_IRQ_IRQ_H
28#define LIBBSP_POWERPC_MVME5500_IRQ_IRQ_H
29
30#define BSP_SHARED_HANDLER_SUPPORT      1
31#include <rtems/irq.h>
32
33#ifndef ASM
34
35#define OneTierIrqPrioTbl 1
36
37/*
38 * Symbolic IRQ names and related definitions.
39 */
40
41/* leave the ISA symbols in there, so we can reuse shared/irq.c
42 * Also, we start numbering PCI irqs at 16 because the OPENPIC
43 * driver relies on this when mapping irq number <-> vectors
44 * (OPENPIC_VEC_SOURCE in openpic.h)
45 */
46
47  /* See section 25.2 , Table 734 of GT64260 controller
48   * Main Interrupt Cause Low register
49   */
50#define BSP_MICL_IRQ_NUMBER           (32)
51#define BSP_MICL_IRQ_LOWEST_OFFSET    (0)
52#define BSP_MICL_IRQ_MAX_OFFSET       (BSP_MICL_IRQ_LOWEST_OFFSET + BSP_MICL_IRQ_NUMBER -1)
53  /*
54   * Main Interrupt Cause High register
55   */
56#define BSP_MICH_IRQ_NUMBER           (32)
57#define BSP_MICH_IRQ_LOWEST_OFFSET    (BSP_MICL_IRQ_MAX_OFFSET+1)
58#define BSP_MICH_IRQ_MAX_OFFSET       (BSP_MICH_IRQ_LOWEST_OFFSET + BSP_MICH_IRQ_NUMBER -1)
59 /* External GPP Interrupt assignements
60  */
61#define BSP_GPP_IRQ_NUMBER              (32)
62#define BSP_GPP_IRQ_LOWEST_OFFSET       (BSP_MICH_IRQ_MAX_OFFSET+1)
63#define BSP_GPP_IRQ_MAX_OFFSET          (BSP_GPP_IRQ_LOWEST_OFFSET + BSP_GPP_IRQ_NUMBER - 1)
64
65 /*
66  * PowerPc exceptions handled as interrupt where a rtems managed interrupt
67  * handler might be connected
68  */
69#define BSP_PROCESSOR_IRQ_NUMBER         (1)
70#define BSP_PROCESSOR_IRQ_LOWEST_OFFSET (BSP_GPP_IRQ_MAX_OFFSET + 1)
71#define BSP_PROCESSOR_IRQ_MAX_OFFSET    (BSP_PROCESSOR_IRQ_LOWEST_OFFSET + BSP_PROCESSOR_IRQ_NUMBER - 1)
72
73  /* allow a couple of vectors for VME and counter/timer irq sources etc.
74   * This is probably not needed any more.
75   */
76#define BSP_MISC_IRQ_NUMBER             (30)
77#define BSP_MISC_IRQ_LOWEST_OFFSET      (BSP_PROCESSOR_IRQ_MAX_OFFSET + 1)
78#define BSP_MISC_IRQ_MAX_OFFSET (BSP_MISC_IRQ_LOWEST_OFFSET + BSP_MISC_IRQ_NUMBER - 1)
79
80  /*
81   * Summary
82   */
83#define BSP_IRQ_NUMBER                  (BSP_MISC_IRQ_MAX_OFFSET + 1)
84#define BSP_MAIN_IRQ_NUMBER             (64)
85#define BSP_PIC_IRQ_NUMBER              (96)
86#define BSP_LOWEST_OFFSET               (BSP_MICL_IRQ_LOWEST_OFFSET)
87#define BSP_MAX_OFFSET                  (BSP_MISC_IRQ_MAX_OFFSET)
88
89  /* Main CPU interrupt cause (Low) */
90#define BSP_MAIN_TIMER0_1_IRQ         (BSP_MICL_IRQ_LOWEST_OFFSET+8)
91#define BSP_MAIN_PCI0_7_0             (BSP_MICL_IRQ_LOWEST_OFFSET+12)
92#define BSP_MAIN_PCI0_15_8            (BSP_MICL_IRQ_LOWEST_OFFSET+13)
93#define BSP_MAIN_PCI0_23_16           (BSP_MICL_IRQ_LOWEST_OFFSET+14)
94#define BSP_MAIN_PCI0_31_24           (BSP_MICL_IRQ_LOWEST_OFFSET+15)
95#define BSP_MAIN_PCI1_7_0             (BSP_MICL_IRQ_LOWEST_OFFSET+16)
96#define BSP_MAIN_PCI1_15_8            (BSP_MICL_IRQ_LOWEST_OFFSET+18)
97#define BSP_MAIN_PCI1_23_16           (BSP_MICL_IRQ_LOWEST_OFFSET+19)
98#define BSP_MAIN_PCI1_31_24           (BSP_MICL_IRQ_LOWEST_OFFSET+20)
99
100
101  /* Main CPU interrupt cause (High) */
102#define BSP_MAIN_ETH0_IRQ             (BSP_MICH_IRQ_LOWEST_OFFSET)
103#define BSP_MAIN_ETH1_IRQ             (BSP_MICH_IRQ_LOWEST_OFFSET+1)
104#define BSP_MAIN_ETH2_IRQ             (BSP_MICH_IRQ_LOWEST_OFFSET+2)
105#define BSP_MAIN_GPP7_0_IRQ           (BSP_MICH_IRQ_LOWEST_OFFSET+24)
106#define BSP_MAIN_GPP15_8_IRQ          (BSP_MICH_IRQ_LOWEST_OFFSET+25)
107#define BSP_MAIN_GPP23_16_IRQ         (BSP_MICH_IRQ_LOWEST_OFFSET+26)
108#define BSP_MAIN_GPP31_24_IRQ         (BSP_MICH_IRQ_LOWEST_OFFSET+27)
109
110  /* on the MVME5500, these are the GT64260B external GPP0 interrupt */
111#define BSP_PCI_IRQ_LOWEST_OFFSET       (BSP_GPP_IRQ_LOWEST_OFFSET)
112#define BSP_UART_COM2_IRQ               (BSP_GPP_IRQ_LOWEST_OFFSET)
113#define BSP_UART_COM1_IRQ               (BSP_GPP_IRQ_LOWEST_OFFSET)
114#define BSP_GPP8_IRQ_OFFSET             (BSP_GPP_IRQ_LOWEST_OFFSET+8)
115#define BSP_GPP_PMC1_INTA               (BSP_GPP8_IRQ_OFFSET)
116#define BSP_GPP16_IRQ_OFFSET          (BSP_GPP_IRQ_LOWEST_OFFSET+16)
117#define BSP_GPP24_IRQ_OFFSET          (BSP_GPP_IRQ_LOWEST_OFFSET+24)
118#define BSP_GPP_VME_VLINT0            (BSP_GPP_IRQ_LOWEST_OFFSET+12)
119#define BSP_GPP_VME_VLINT1            (BSP_GPP_IRQ_LOWEST_OFFSET+13)
120#define BSP_GPP_VME_VLINT2            (BSP_GPP_IRQ_LOWEST_OFFSET+14)
121#define BSP_GPP_VME_VLINT3            (BSP_GPP_IRQ_LOWEST_OFFSET+15)
122#define BSP_GPP_PMC2_INTA             (BSP_GPP_IRQ_LOWEST_OFFSET+16)
123#define BSP_GPP_82544_IRQ             (BSP_GPP_IRQ_LOWEST_OFFSET+20)
124#define BSP_GPP_WDT_NMI_IRQ           (BSP_GPP_IRQ_LOWEST_OFFSET+24)
125#define BSP_GPP_WDT_EXP_IRQ           (BSP_GPP_IRQ_LOWEST_OFFSET+25)
126
127 /*
128   * Some Processor execption handled as rtems IRQ symbolic name definition
129   */
130#define BSP_DECREMENTER         (BSP_PROCESSOR_IRQ_LOWEST_OFFSET)
131
132extern void BSP_rtems_irq_mng_init(unsigned cpuId);
133
134#include <bsp/irq_supp.h>
135
136#endif
137#endif
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