source: rtems/c/src/lib/libbsp/powerpc/beatnik/vme/vmeconfig.c @ 6273201

4.115
Last change on this file since 6273201 was 9b4422a2, checked in by Joel Sherrill <joel.sherrill@…>, on May 3, 2012 at 3:09:24 PM

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1/* Standard VME bridge configuration for MVME5500, MVME6100 */
2
3/*
4 * Authorship
5 * ----------
6 * This software ('beatnik' RTEMS BSP for MVME6100 and MVME5500) was
7 *     created by Till Straumann <strauman@slac.stanford.edu>, 2005-2007,
8 *         Stanford Linear Accelerator Center, Stanford University.
9 *
10 * Acknowledgement of sponsorship
11 * ------------------------------
12 * The 'beatnik' BSP was produced by
13 *     the Stanford Linear Accelerator Center, Stanford University,
14 *         under Contract DE-AC03-76SFO0515 with the Department of Energy.
15 *
16 * Government disclaimer of liability
17 * ----------------------------------
18 * Neither the United States nor the United States Department of Energy,
19 * nor any of their employees, makes any warranty, express or implied, or
20 * assumes any legal liability or responsibility for the accuracy,
21 * completeness, or usefulness of any data, apparatus, product, or process
22 * disclosed, or represents that its use would not infringe privately owned
23 * rights.
24 *
25 * Stanford disclaimer of liability
26 * --------------------------------
27 * Stanford University makes no representations or warranties, express or
28 * implied, nor assumes any liability for the use of this software.
29 *
30 * Stanford disclaimer of copyright
31 * --------------------------------
32 * Stanford University, owner of the copyright, hereby disclaims its
33 * copyright and all other rights in this software.  Hence, anyone may
34 * freely use it for any purpose without restriction. 
35 *
36 * Maintenance of notices
37 * ----------------------
38 * In the interest of clarity regarding the origin and status of this
39 * SLAC software, this and all the preceding Stanford University notices
40 * are to remain affixed to any copy or derivative of this software made
41 * or distributed by the recipient and are to be affixed to any copy of
42 * software made or distributed by the recipient that contains a copy or
43 * derivative of this software.
44 *
45 * ------------------ SLAC Software Notices, Set 4 OTT.002a, 2004 FEB 03
46 */ 
47
48#include <rtems.h>
49#include <rtems/bspIo.h>
50#include <bsp.h>
51#include <bsp/VME.h>
52#include <bsp/VMEConfig.h>
53#include <bsp/irq.h>
54#include <bsp/vmeUniverse.h>
55#define _VME_TSI148_DECLARE_SHOW_ROUTINES
56#include <bsp/vmeTsi148.h>
57#include <libcpu/bat.h>
58
59/* Use a weak alias for the VME configuration.
60 * This permits individual applications to override
61 * this routine.
62 * They may even create an 'empty'
63 *
64 *    void BSP_vme_config(void) {}
65 *
66 * which will avoid linking in the Universe driver
67 * at all :-).
68 */
69
70void BSP_vme_config(void) __attribute__ (( weak, alias("__BSP_default_vme_config") ));
71
72typedef struct {
73        int                             (*xlate_adrs)(int, int, unsigned long, unsigned long, unsigned long *);
74        int                             (*install_isr)(unsigned long, BSP_VME_ISR_t, void *);
75        int                             (*remove_isr)(unsigned long, BSP_VME_ISR_t, void *);
76        BSP_VME_ISR_t   (*get_isr)(unsigned long vector, void **);
77        int                             (*enable_int_lvl)(unsigned int);
78        int                             (*disable_int_lvl)(unsigned int);
79        int                             (*outbound_p_cfg)(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
80        int                             (*inbound_p_cfg) (unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
81        void                    (*outbound_p_show)(FILE*);
82        void                    (*inbound_p_show) (FILE*);
83        void            (*reset_bus)(void);
84        int                             (*install_irq_mgr)(int, int, int, ...);
85} VMEOpsRec, *VMEOps;
86
87static VMEOpsRec uniOpsRec = {
88        xlate_adrs:             vmeUniverseXlateAddr,
89        install_isr:            vmeUniverseInstallISR,
90        remove_isr:             vmeUniverseRemoveISR,
91        get_isr:                        vmeUniverseISRGet,
92        enable_int_lvl:         vmeUniverseIntEnable,
93        disable_int_lvl:        vmeUniverseIntDisable,
94        outbound_p_cfg:         vmeUniverseMasterPortCfg,
95        inbound_p_cfg:          vmeUniverseSlavePortCfg,
96        outbound_p_show:        vmeUniverseMasterPortsShow,
97        inbound_p_show:         vmeUniverseSlavePortsShow,
98        reset_bus:          vmeUniverseResetBus,
99        install_irq_mgr:        vmeUniverseInstallIrqMgrAlt,
100};
101
102static VMEOpsRec tsiOpsRec = {
103        xlate_adrs:             vmeTsi148XlateAddr,
104        install_isr:            vmeTsi148InstallISR,
105        remove_isr:             vmeTsi148RemoveISR,
106        get_isr:                        vmeTsi148ISRGet,
107        enable_int_lvl:         vmeTsi148IntEnable,
108        disable_int_lvl:        vmeTsi148IntDisable,
109        outbound_p_cfg:         vmeTsi148OutboundPortCfg,
110        inbound_p_cfg:          vmeTsi148InboundPortCfg,
111        outbound_p_show:        vmeTsi148OutboundPortsShow,
112        inbound_p_show:         vmeTsi148InboundPortsShow,
113        reset_bus:          vmeTsi148ResetBus,
114        install_irq_mgr:        vmeTsi148InstallIrqMgrAlt,
115};
116
117static VMEOps theOps = 0;
118
119int
120BSP_vme2local_adrs(unsigned long am, unsigned long vmeaddr, unsigned long *plocaladdr)
121{
122int rval=theOps->xlate_adrs(1,0,am,vmeaddr,plocaladdr);
123        *plocaladdr+=PCI_MEM_BASE;
124        return rval;
125}
126
127int
128BSP_local2vme_adrs(unsigned long am, unsigned long localaddr, unsigned long *pvmeaddr)
129{
130        return theOps->xlate_adrs(0, 0, am,localaddr+PCI_DRAM_OFFSET,pvmeaddr);
131}
132
133int
134BSP_installVME_isr(unsigned long vector, BSP_VME_ISR_t handler, void *arg)
135{
136        return theOps->install_isr(vector, handler, arg);
137}
138
139int
140BSP_removeVME_isr(unsigned long vector, BSP_VME_ISR_t handler, void *arg)
141{
142        return theOps->remove_isr(vector, handler, arg);
143}
144
145/* retrieve the currently installed ISR for a given vector */
146BSP_VME_ISR_t
147BSP_getVME_isr(unsigned long vector, void **parg)
148{
149        return theOps->get_isr(vector, parg);
150}
151
152int
153BSP_enableVME_int_lvl(unsigned int level)
154{
155        return theOps->enable_int_lvl(level);
156}
157
158int
159BSP_disableVME_int_lvl(unsigned int level)
160{
161        return theOps->disable_int_lvl(level);
162}
163
164int
165BSP_VMEOutboundPortCfg(
166        unsigned long port,
167        unsigned long address_space,
168        unsigned long vme_address,
169        unsigned long pci_address,
170        unsigned long size)
171{
172        return theOps->outbound_p_cfg(port, address_space, vme_address, pci_address, size);
173}
174
175int
176BSP_VMEInboundPortCfg(
177        unsigned long port,
178        unsigned long address_space,
179        unsigned long vme_address,
180        unsigned long pci_address,
181        unsigned long size)
182{
183        return theOps->inbound_p_cfg(port, address_space, vme_address, pci_address, size);
184}
185
186void
187BSP_VMEOutboundPortsShow(FILE *f)
188{
189        theOps->outbound_p_show(f);
190}
191
192void
193BSP_VMEInboundPortsShow(FILE *f)
194{
195        theOps->inbound_p_show(f);
196}
197
198void
199BSP_VMEResetBus(void)
200{
201        theOps->reset_bus();
202}
203
204static unsigned short
205tsi_clear_errors(int quiet)
206{
207unsigned long   v;
208unsigned short  rval;
209        v = vmeTsi148ClearVMEBusErrors(0);
210
211        /* return bits 8..23 of VEAT; set bit 15 to make sure rval is nonzero on error */
212        rval =  v ? ((v>>8) & 0xffff) | (1<<15) : 0;
213        return rval;
214}
215
216void
217__BSP_default_vme_config(void)
218{
219int err = 1;
220        if ( 0 == vmeUniverseInit() ) {
221                theOps = &uniOpsRec;
222                vmeUniverseReset();
223        } else if ( 0 == vmeTsi148Init() ) {
224                theOps = &tsiOpsRec;
225                vmeTsi148Reset();
226                _BSP_clear_vmebridge_errors = tsi_clear_errors;
227        } else 
228                return; /* no VME bridge found chip */
229
230  /* map VME address ranges */
231  BSP_VMEOutboundPortCfg(
232        0,
233        VME_AM_EXT_SUP_DATA,
234        _VME_A32_WIN0_ON_VME,
235        _VME_A32_WIN0_ON_PCI,
236        0x0e000000
237        );
238  BSP_VMEOutboundPortCfg(
239        1,
240        VME_AM_STD_SUP_DATA,
241        0x00000000,
242        _VME_A24_ON_PCI,
243        0x00ff0000);
244  BSP_VMEOutboundPortCfg(
245        2,
246        VME_AM_SUP_SHORT_IO,
247        0x00000000,
248        _VME_A16_ON_PCI,
249        0x00010000);
250
251#ifdef _VME_CSR_ON_PCI
252  /* Map VME64 CSR */
253  BSP_VMEOutboundPortCfg(
254                  7,
255                  VME_AM_CSR,
256                  0,
257                  _VME_CSR_ON_PCI,
258                  0x01000000);
259#endif
260
261#ifdef _VME_DRAM_OFFSET
262  /* map our memory to VME */
263  BSP_VMEInboundPortCfg(
264        0,
265        VME_AM_EXT_SUP_DATA | VME_AM_IS_MEMORY,
266        _VME_DRAM_OFFSET,
267        PCI_DRAM_OFFSET,
268        BSP_mem_size);
269#endif
270
271  /* stdio is not yet initialized; the driver will revert to printk */
272  BSP_VMEOutboundPortsShow(0);
273  BSP_VMEInboundPortsShow(0);
274
275  switch (BSP_getBoardType()) {
276        case MVME6100:
277                err = theOps->install_irq_mgr(
278                                        VMETSI148_IRQ_MGR_FLAG_SHARED,
279                                        0, BSP_IRQ_GPP_0 + 20,
280                                        1, BSP_IRQ_GPP_0 + 21,
281                                        2, BSP_IRQ_GPP_0 + 22,
282                                        3, BSP_IRQ_GPP_0 + 23,
283                                        -1);
284        break;
285
286        case MVME5500:
287                err = theOps->install_irq_mgr(
288                                        VMEUNIVERSE_IRQ_MGR_FLAG_SHARED |
289                                        VMEUNIVERSE_IRQ_MGR_FLAG_PW_WORKAROUND,
290                                        0, BSP_IRQ_GPP_0 + 12,
291                                        1, BSP_IRQ_GPP_0 + 13,
292                                        2, BSP_IRQ_GPP_0 + 14,
293                                        3, BSP_IRQ_GPP_0 + 15,
294                                        -1);
295        break;
296
297        default:
298                printk("WARNING: unknown board; ");
299        break;
300  }
301  if ( err )
302        printk("VME interrupt manager NOT INSTALLED (error: %i)\n", err);
303}
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