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[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [packages/] [hal/] [arm/] [xscale/] [mpc50/] [v2_0/] [include/] [hal_platform_setup.h] - Blame information for rev 174

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/*=============================================================================
2
//
3
//      hal_platform_setup.h
4
//
5
//      Platform specific support for HAL (assembly code)
6
//
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
//
13
// eCos is free software; you can redistribute it and/or modify it under
14
// the terms of the GNU General Public License as published by the Free
15
// Software Foundation; either version 2 or (at your option) any later version.
16
//
17
// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
18
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
19
// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
20
// for more details.
21
//
22
// You should have received a copy of the GNU General Public License along
23
// with eCos; if not, write to the Free Software Foundation, Inc.,
24
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
25
//
26
// As a special exception, if other files instantiate templates or use macros
27
// or inline functions from this file, or you compile this file and link it
28
// with other works to produce a work based on this file, this file does not
29
// by itself cause the resulting work to be covered by the GNU General Public
30
// License. However the source code for this file must still be made available
31
// in accordance with section (3) of the GNU General Public License.
32
//
33
// This exception does not invalidate any other reasons why a work based on
34
// this file might be covered by the GNU General Public License.
35
//
36
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
37
// at http://sources.redhat.com/ecos/ecos-license/
38
// -------------------------------------------
39
//####ECOSGPLCOPYRIGHTEND####
40
//==========================================================================
41
//#####DESCRIPTIONBEGIN####
42
//
43
// Author(s):    <knud.woehler@microplex.de>
44
// Date:         2003-01-09
45
//
46
//####DESCRIPTIONEND####
47
//
48
//===========================================================================*/
49
#ifndef CYGONCE_HAL_PLATFORM_SETUP_H
50
#define CYGONCE_HAL_PLATFORM_SETUP_H
51
 
52
#include <pkgconf/system.h>             // System-wide configuration info
53
#include CYGBLD_HAL_VARIANT_H           // Variant specific configuration
54
#include CYGBLD_HAL_PLATFORM_H  // Platform specific configuration
55
#include <cyg/hal/hal_pxa2x0.h> // Platform specific hardware definitions
56
#include <cyg/hal/hal_mmu.h>            // MMU definitions
57
#include <cyg/hal/hal_mm.h>             // more MMU definitions
58
#include <cyg/hal/mpc50.h>
59
 
60
/**********************************************************************************************************************
61
* MMU/Cache
62
**********************************************************************************************************************/
63
.macro init_mmu_cache_on
64
                ldr             r0, =0x2001
65
                mcr             p15, 0, r0, c15, c1, 0
66
                mcr             p15, 0, r0, c7, c10, 4           // drain the write & fill buffers
67
                CPWAIT  r0
68
                mcr             p15, 0, r0, c7, c7, 0             // flush Icache, Dcache and BTB
69
                CPWAIT  r0
70
                mcr             p15, 0, r0, c8, c7, 0             // flush instuction and data TLBs
71
                CPWAIT  r0
72
 
73
                // Icache on
74
                mrc             p15, 0, r0, c1, c0, 0
75
                orr             r0, r0, #MMU_Control_I
76
                orr             r0, r0, #MMU_Control_BTB                // Enable the BTB
77
                mcr             p15, 0, r0, c1, c0, 0
78
                CPWAIT  r0
79
 
80
                // create stack for "C"
81
                ldr     r1,=__startup_stack
82
                ldr     r2,=PXA2X0_RAM_BANK0_BASE
83
                orr     sp,r1,r2
84
                bl              hal_mmu_init    // create MMU Tables 
85
 
86
                // Enable permission checks in all domains
87
                ldr             r0, =0x55555555
88
                mcr             p15, 0, r0, c3, c0, 0
89
 
90
                // MMU on
91
                ldr     r2,=1f
92
                mrc             p15, 0, r0, c1, c0, 0
93
                orr             r0, r0, #MMU_Control_M
94
                orr             r0, r0, #MMU_Control_R
95
                mcr             p15, 0, r0, c1, c0, 0
96
                mov             pc,r2
97
                nop
98
                nop
99
                nop
100
1:
101
 
102
                mcr             p15, 0, r0, c7, c10, 4           // drain the write & fill buffers
103
                CPWAIT  r0
104
 
105
                // Dcache on
106
                mrc             p15, 0, r0, c1, c0, 0
107
                orr             r0, r0, #MMU_Control_C
108
                mcr             p15, 0, r0, c1, c0, 0
109
                CPWAIT  r0
110
 
111
                // clean/drain/flush the main Dcache
112
                mov             r1, #0xc0000000
113
                mov             r0, #1024
114
2:
115
                mcr             p15, 0, r1, c7, c2, 5
116
                add             r1, r1, #32
117
                subs    r0, r0, #1
118
                bne             2b
119
 
120
                // clean/drain/flush the mini Dcache
121
                //ldr   r1, =(DCACHE_FLUSH_AREA+DCACHE_SIZE) // use a CACHEABLE area of
122
                mov             r0, #64                                 // number of lines in the mini Dcache
123
3:
124
                mcr             p15, 0, r1, c7, c2, 5    // allocate a Dcache line
125
                add             r1, r1, #32                             // increment the address to
126
                subs    r0, r0, #1                              // decrement the loop count
127
                bne             3b
128
 
129
                // flush Dcache
130
                mcr             p15, 0, r0, c7, c6, 0
131
                CPWAIT  r0
132
 
133
                // drain the write & fill buffers
134
                mcr             p15, 0, r0, c7, c10, 4
135
                CPWAIT  r0
136
 
137
.endm
138
 
139
 
140
 
141
.macro  init_mmu_off
142
                mov             r0, #0x78                        
143
                mcr             p15, 0, r0, c1, c0, 0     // caches off -- MMU off or ID map
144
                mcr             p15, 0, r0, c7, c7, 0     // Invalidate the I & D cache, mini- d cache, and BTB
145
                mcr             p15, 0, r0, c7, c10, 4   // Drain write buffer -- r0 ignored
146
                CPWAIT  r0
147
                nop
148
                nop
149
                nop
150
                nop
151
                mvn             r0, #0                      
152
                mcr             p15, 0, r0, c3, c0, 0
153
.endm
154
 
155
/**********************************************************************************************************************
156
* Clock
157
**********************************************************************************************************************/
158
#define CCCR_OFFS (PXA2X0_CCCR-PXA2X0_CLK_BASE)
159
.macro init_clks
160
                ldr             r1, =PXA2X0_CLK_BASE
161
                // TurboMode=400MHz/RunMode=200MHz/Memory=100MHz/SDRam=100MHz
162
//              ldr             r0, =(PXA2X0_CCCR_L27 | PXA2X0_CCCR_M2 | PXA2X0_CCCR_N20)
163
                // TurboMode=300MHz/RunMode=200MHz/Memory=100MHz/SDRam=100MHz   
164
//              ldr             r0, =(PXA2X0_CCCR_L27 | PXA2X0_CCCR_M2 | PXA2X0_CCCR_N15)       
165
                adr             r0, mpc50_static_info
166
                ldr             r0, [r0, #MPC50_VAL_OFFS_CCCR]
167
 
168
                str             r0, [r1, #CCCR_OFFS]                                    // set Core Clock
169
                mov             r0,     #3
170
                mcr             p14, 0, r0, c6, c0, 0                                     // Turbo Mode on
171
.endm
172
 
173
/**********************************************************************************************************************
174
* Interrupt controller
175
**********************************************************************************************************************/
176
#define ICLR_OFFS (PXA2X0_ICLR-PXA2X0_IC_BASE)
177
#define ICMR_OFFS (PXA2X0_ICMR-PXA2X0_IC_BASE)
178
.macro init_intc_cnt
179
                ldr             r1, =PXA2X0_IC_BASE
180
                mov             r0, #0
181
                str             r0, [r1, #ICLR_OFFS]                                                                    // clear Interrupt level Register
182
                str             r0,     [r1, #ICMR_OFFS]                                                                        // clear Interrupt mask Register
183
.endm
184
 
185
/**********************************************************************************************************************
186
* SDRAM
187
**********************************************************************************************************************/
188
 
189
//#define MDCNFG_VAL    0x094B094B      // SDRAM Config Reg (32Bit, 9 Col, 13 Row, 2 Bank, CL2)
190
//#define MDREFR_VAL    0x0005b018  // SDRAM Refresh Reg SDCLK=memory clock
191
//#define MDREFR_VAL    0x000ff018  // SDRAM Refresh Reg SDCLK=1/2 memory clock
192
#define MDMRS_VAL       0x00000000  // SDRAM Mode Reg Set Config Reg
193
#define MSC0_VAL        0x199123da      // CS1(FPGA)/CS0(Flash)
194
#define MSC1_VAL        0x7ff07ff1      // CS3(not used)/CS2(ETH)
195
 
196
#define OSCR_OFFS       (PXA2X0_OSCR-PXA2X0_OSTIMER_BASE)
197
#define MDREFR_OFFS     (PXA2X0_MDREFR-PXA2X0_MEMORY_CTL_BASE)
198
#define MDCNFG_OFFS     (PXA2X0_MDCNFG-PXA2X0_MEMORY_CTL_BASE)
199
#define MDMRS_OFFS      (PXA2X0_MDMRS-PXA2X0_MEMORY_CTL_BASE)
200
#define MSC0_OFFS       (PXA2X0_MSC0-PXA2X0_MEMORY_CTL_BASE)
201
#define MSC1_OFFS       (PXA2X0_MSC1-PXA2X0_MEMORY_CTL_BASE)
202
#define MSC2_OFFS       (PXA2X0_MSC2-PXA2X0_MEMORY_CTL_BASE)
203
.macro init_sdram_cnt
204
// Hardware Reset Operation (S. 5-83)
205
// Step 1
206
 
207
// wait 200 usec
208
                ldr             r1,     =PXA2X0_OSTIMER_BASE                                                            // set OS Timer Count
209
                mov             r0,     #0
210
                str             r0,     [r1, #OSCR_OFFS] 
211
                ldr             r2,     =0x300                                                                                          // wait 200 usec 
212
61:
213
                ldr             r0,     [r1, #OSCR_OFFS] 
214
                cmp             r2,     r0
215
                bgt             61b
216
 
217
                ldr             r1,  =PXA2X0_MEMORY_CTL_BASE
218
 
219
        ldr     r0,  =MSC0_VAL
220
                str             r0,     [r1, #MSC0_OFFS]                                                                        // FPGA/Flash
221
 
222
                ldr     r0,  =MSC1_VAL
223
                str             r0,     [r1, #MSC1_OFFS]                                                                        // ETH
224
 
225
                // Refresh Register 
226
        //ldr     r3,  =MDREFR_VAL                                                                              // load SDRAM refresh info
227
                adr             r3,  mpc50_static_info
228
                ldr             r3,  [r3, #MPC50_VAL_OFFS_MDREFR]
229
 
230
 
231
                ldr     r2,  =0xFFF                                                                                             // DRI field
232
        and     r3,  r3,  r2
233
        ldr     r4,  [r1, #MDREFR_OFFS]                                                                 // read Reset Status
234
        bic     r4,  r4,  r2
235
                bic     r4,  r4,  #(0x01000000 | 0x02000000)                                    // clear K1Free, K2Free, 
236
                bic             r4,  r4,  #0x00004000                                                                   // K0DB2
237
        orr     r4,  r4,  r3                                                                                    // add DRI field
238
        str     r4,  [r1, #MDREFR_OFFS]                                                                 // 
239
        ldr     r4,  [r1, #MDREFR_OFFS]
240
 
241
// Step 2
242
// 
243
 
244
// Step 3
245
        //ldr     r3,  =MDREFR_VAL                                                                              // load SDRAM Refresh Info 
246
                adr             r3,  mpc50_static_info
247
                ldr             r3,  [r3, #MPC50_VAL_OFFS_MDREFR]
248
 
249
 
250
                ldr     r2,  =0x000f0000
251
        and     r3,  r3,  r2
252
        orr     r4,  r4,  r3
253
        str     r4,  [r1, #MDREFR_OFFS]
254
        ldr     r4,  [r1, #MDREFR_OFFS]        
255
 
256
        bic     r4,  r4,  #0x00400000                                                                   // Self Refresh off
257
        str     r4,  [r1, #MDREFR_OFFS]
258
        ldr     r4,  [r1, #MDREFR_OFFS]
259
 
260
                orr     r4,  r4,  #0x00008000                                                                   // SDCKE1 on
261
        str     r4,  [r1, #MDREFR_OFFS]
262
        ldr     r4,  [r1, #MDREFR_OFFS]
263
 
264
                orr     r4,  r4,  #0x00800000                                                                   // K0Free on
265
        str     r4,  [r1, #MDREFR_OFFS]
266
        ldr     r4,  [r1, #MDREFR_OFFS]
267
                nop
268
        nop
269
 
270
 // Step 4       
271
                //ldr     r2,  =MDCNFG_VAL
272
                adr             r2,  mpc50_static_info
273
                ldr             r2,  [r2, #MPC50_VAL_OFFS_MDCNFG]
274
 
275
 
276
                bic     r2,  r2,  #0x0003               // DE1-0
277
        bic     r2,  r2,  #0x00030000   // DE3-2
278
        str     r2,  [r1, #MDCNFG_OFFS]
279
 
280
// Step 5
281
// wait 200 usec 
282
                ldr r1, =PXA2X0_OSTIMER_BASE
283
                mov r0, #0
284
                str r0, [r1, #OSCR_OFFS] 
285
                ldr r2, =0x300
286
71:
287
                ldr r0, [r1, #OSCR_OFFS] 
288
                cmp r2, r0
289
                bgt 71b
290
 
291
// Step 6
292
                mov    r0, #0x78
293
                mcr    p15, 0, r0, c1, c0, 0      // (caches off, MMU off, etc.)
294
 
295
// Step 7
296
            ldr     r2, =PXA2X0_RAM_BANK0_BASE
297
            str     r2, [r2]
298
            str     r2, [r2]
299
            str     r2, [r2]
300
            str     r2, [r2]
301
            str     r2, [r2]
302
            str     r2, [r2]
303
            str     r2, [r2]
304
            str     r2, [r2]
305
 
306
// Step 8
307
//
308
// Step 9
309
// SDRAM enable
310
                //ldr     r3,  =MDCNFG_VAL
311
                adr             r3,  mpc50_static_info
312
                ldr             r3,  [r3, #MPC50_VAL_OFFS_MDCNFG]
313
 
314
 
315
                ldr     r2,  =0x00030003
316
        and     r2,  r3,  r2
317
                ldr             r1,  =PXA2X0_MEMORY_CTL_BASE
318
        ldr     r3,  [r1, #MDCNFG_OFFS]
319
                orr     r3,  r3,  r2
320
                str     r3,  [r1, #MDCNFG_OFFS]
321
 
322
// Step 10
323
        ldr     r2,  =MDMRS_VAL
324
        str     r2,  [r1, #MDMRS_OFFS]
325
.endm
326
 
327
 
328
/**********************************************************************************************************************
329
* GPIOs
330
**********************************************************************************************************************/
331
 
332
// GPIO         Name                    Pin             GPDR    GAFR    GPSR
333
 
334
//      0                INT0                    L10             0                00              0
335
//      1               INT1                    L12             0                00              0
336
//      2               FLX-CLK                 L13             1               00              0
337
//      3               FLX-DAT                 K14             1               00              0
338
 
339
//      4               FLX-CONFIG              J12             1               00              1
340
//      5               FLX-STATUS              J11             0                00              0
341
//      6               FLX-CONFDONE    H14             0                00              0
342
//      7               LAN_INT                 G15             0                00              0
343
 
344
//      8               USB-H-ON                F14             1               00              1
345
//      9               USB-CL-ON               F12             0                00              0
346
//      10              MPSB-INT0               F7              0                00              0
347
//      11              -                               A7              0                00              0
348
 
349
//      12              MPSB-INT1               B6              0                00              0
350
//      13              MBGNT                   B5              1               10              0
351
//      14              MBREQ                   B4              0                01              0
352
//      15              nCS_1                   T8              1               10              1
353
 
354
#define GAFR0_L_VAL             0x80000000 //0x98000000
355
 
356
//      16              PWM0                    E12             0                00              0
357
//      17              PWM1                    D12             0                00              0
358
//      18              RDY                             C1              0                01              0
359
//      19              DREQ[1]                 N14             0                00              0
360
 
361
//      20              DREQ[0]                 N12             0                00              0
362
//      21              DVAL0                   N15             0                00              0
363
//      22              DVAL1                   M12             0                00              0
364
//      23              SSPSCLK                 F9              0                00              0
365
 
366
//      24              SSPSFRM                 E9              0                00              0
367
//      25              SSPTXD                  D9              0                00              0
368
//      26              SSPRXD                  A9              0                00              0
369
//      27              SSPEXTCLK               B9              0                00              0
370
 
371
//      28              BITCLK                  C9              0                00              0
372
//      29              SDATIN0                 E10             0                00              0
373
//      30              SDATOUT                 A10             0                00              0
374
//      31              SYNC                    E11             0                00              0
375
 
376
#define GPDR0_VAL               0x0000811c //0x0000a11c
377
#define GAFR0_U_VAL             0x00000010
378
#define GPSR0_VAL               0x00008110
379
 
380
//      32              SDATIN1                 A16             0                00              0
381
//      33              Reset-Button    T13             0                00              0
382
//      34              FFRXD                   A13             0                01              0
383
//      35              FFCTS                   A14             0                01              0
384
 
385
//      36              FFDCD                   A12             0                01              0
386
//      37              FFDSR                   B11             0                01              0
387
//      38              FFRI                    B10             0                01              0
388
//      39              FFTXD                   E13             1               10              1
389
 
390
//      40              FFDTR                   F10             1               10              1
391
//      41              FFRTS                   F8              1               10              1
392
//      42              BTRXD                   B13             0                00              0
393
//      43              BTTXD                   D13             0                00              0
394
 
395
//      44              BTCTS                   A15             0                00              0
396
//      45              BTRTS                   B14             0                00              0
397
//      46              IRRXD                   B15             0                00              0
398
//      47              IRTXD                   C15             0                00              0
399
 
400
#define GAFR1_L_VAL             0x000a9550
401
 
402
 
403
//      48              LED_DP                  P13             1               00              0
404
//      49              LED_G                   T14             1               00              0
405
//      50              LED_F                   T15             1               00              0
406
//      51              LED_E                   R15             1               00              0
407
 
408
//      52              LED_D                   P14             1               00              0
409
//      53              LED_C                   R16             1               00              0
410
//      54              LED_B                   P16             1               00              0
411
//      55              LED_A                   M13             1               00              0
412
 
413
//      56              GPIO56                  N16             0                00              0
414
//      57              GPIO57                  M16             0                00              0
415
//      58              LCDD0                   E7              0                00              0
416
//      59              LCDD1                   D7              0                00              0
417
 
418
//      60              LCDD2                   C7              0                00              0
419
//      61              LCDD3                   B7              0                00              0
420
//      62              LCDD4                   E6              0                00              0
421
//      63              LCDD5                   D6              0                00              0
422
 
423
#define GPDR1_VAL               0x00ff0380
424
#define GAFR1_U_VAL             0x00000000
425
#define GPSR1_VAL               0x00000380
426
#define GPSR_LED_VAL    0x00ff0000
427
 
428
//      64              LCDD6                   E5              0                00              0
429
//      65              LCDD7                   A6              0                00              0
430
//      66              LCDD8                   C5              0                00              0
431
//      67              LCDD9                   A5              0                00              0
432
 
433
//      68              LCDD10                  D5              0                00              0
434
//      69              LCDD11                  A4              0                00              0
435
//      70              LCDD12                  A3              0                00              0
436
//      71              LCDD13                  A2              0                00              0
437
 
438
//      72              LCDD14                  C3              0                00              0
439
//      73              LCDD15                  B3              0                00              0
440
//      74              LCDFCLK                 E8              0                00              0
441
//      75              LCDLCLK                 D8              0                00              0
442
 
443
//      76              LCDPCLK                 B8              0                00              0
444
//      77              LCDBIAS                 A8              0                00              0
445
//      78              n_CS2                   P9              1               10              1
446
//      79              LAN_RES                 T9              1               00              1
447
 
448
#define GAFR2_L_VAL             0x20000000
449
 
450
//      80              n_CS4                   R13             0                00              0
451
 
452
#define GPDR2_VAL               0x0000c000
453
#define GAFR2_U_VAL             0x00000000
454
#define GPSR2_VAL               0x0000c000
455
 
456
 
457
#define GPSR0_OFFS              (PXA2X0_GPSR0-PXA2X0_GPIO_BASE)
458
#define GPCR0_OFFS              (PXA2X0_GPCR0-PXA2X0_GPIO_BASE)
459
#define GPSR1_OFFS              (PXA2X0_GPSR1-PXA2X0_GPIO_BASE)
460
#define GPCR1_OFFS              (PXA2X0_GPCR1-PXA2X0_GPIO_BASE)
461
#define GPSR2_OFFS              (PXA2X0_GPSR2-PXA2X0_GPIO_BASE)
462
#define GPCR2_OFFS              (PXA2X0_GPCR2-PXA2X0_GPIO_BASE)
463
#define GPDR0_OFFS              (PXA2X0_GPDR0-PXA2X0_GPIO_BASE)
464
#define GPDR1_OFFS              (PXA2X0_GPDR1-PXA2X0_GPIO_BASE)
465
#define GPDR2_OFFS              (PXA2X0_GPDR2-PXA2X0_GPIO_BASE)
466
#define GAFR0_L_OFFS    (PXA2X0_GAFR0_L-PXA2X0_GPIO_BASE)
467
#define GAFR0_U_OFFS    (PXA2X0_GAFR0_U-PXA2X0_GPIO_BASE)
468
#define GAFR1_L_OFFS    (PXA2X0_GAFR1_L-PXA2X0_GPIO_BASE)
469
#define GAFR1_U_OFFS    (PXA2X0_GAFR1_U-PXA2X0_GPIO_BASE)
470
#define GAFR2_L_OFFS    (PXA2X0_GAFR2_L-PXA2X0_GPIO_BASE)
471
#define GAFR2_U_OFFS    (PXA2X0_GAFR2_U-PXA2X0_GPIO_BASE)
472
#define PSSR_OFFS               (PXA2X0_PSSR-PXA2X0_PM_BASE)
473
 
474
.macro init_mpc_gpio
475
        ldr             r1, =PXA2X0_GPIO_BASE
476
 
477
        ldr             r0, =GPSR0_VAL                  // set GPIO outputs to default
478
        str             r0, [r1, #GPSR0_OFFS]
479
                mvn             r0, r0
480
                str             r0, [r1, #GPCR0_OFFS]
481
                ldr             r0, =GPSR1_VAL                  // set GPIO outputs to default
482
        str             r0, [r1, #GPSR1_OFFS]
483
                mvn             r0, r0
484
        str             r0, [r1, #GPCR1_OFFS]
485
        ldr             r0, =GPSR2_VAL                  // set GPIO outputs to default
486
        str             r0, [r1, #GPSR2_OFFS]
487
                mvn             r0, r0
488
                str             r0, [r1, #GPCR2_OFFS]
489
 
490
                ldr             r0, =GPDR0_VAL                  // GPIO direction
491
                str             r0, [r1, #GPDR0_OFFS]
492
                ldr             r0, =GPDR1_VAL                  // GPIO direction
493
                str             r0, [r1, #GPDR1_OFFS]
494
                ldr             r0, =GPDR2_VAL                  // GPIO direction
495
                str             r0, [r1, #GPDR2_OFFS]
496
 
497
        ldr             r0, =GAFR0_L_VAL                // GPIO alternate function
498
        str             r0, [r1, #GAFR0_L_OFFS]
499
        ldr             r0, =GAFR0_U_VAL                // GPIO alternate function
500
        str             r0, [r1, #GAFR0_U_OFFS]
501
        ldr             r0, =GAFR1_L_VAL                // GPIO alternate function
502
        str             r0, [r1, #GAFR1_L_OFFS]
503
        ldr             r0, =GAFR1_U_VAL                // GPIO alternate function
504
        str             r0, [r1, #GAFR1_U_OFFS]
505
        ldr             r0, =GAFR2_L_VAL                // GPIO alternate function
506
        str             r0, [r1, #GAFR2_L_OFFS]
507
        ldr             r0, =GAFR2_U_VAL                // GPIO alternate function
508
        str             r0, [r1, #GAFR2_U_OFFS]
509
 
510
        ldr             r1, =PXA2X0_PM_BASE
511
                ldr             r0,     =0x20
512
        str             r0, [r1, #PSSR_OFFS]    // enable GPIO inputs 
513
 
514
.endm
515
 
516
/**********************************************************************************************************************
517
* LED
518
**********************************************************************************************************************/
519
//   -7-
520
// |     |
521
// 1     6
522
// |     |
523
//   -2-
524
// |     |
525
// 3     5
526
// |     |
527
//   -4-     0
528
 
529
#define CYGHWR_LED_MACRO                                \
530
        b               2f                                                      ;\
531
1:                                                                              ;\
532
        .byte 0xfb, 0x61, 0xdd, 0xf5            ;\
533
        .byte 0x67, 0xb7, 0xbf, 0xe1            ;\
534
        .byte 0xff, 0xf7, 0xef, 0x3f            ;\
535
        .byte 0x1d, 0x7d, 0x9f, 0x8f            ;\
536
2:                                                                              ;\
537
        ldr             r1, =PXA2X0_GPIO_BASE           ;\
538
        mov             r0, #0x00ff0000                         ;\
539
        str             r0, [r1, #GPSR1_OFFS]           ;\
540
        sub             r0, pc, #((3f+4)-1b)            ;\
541
3:                                                                              ;\
542
        ldrb    r0,     [r0, #\x]                               ;\
543
        mov             r0, r0, lsl #16                         ;\
544
        str             r0, [r1, #GPCR1_OFFS]           ;
545
 
546
/**********************************************************************************************************************
547
* initialize controller
548
**********************************************************************************************************************/
549
 
550
#if defined(CYG_HAL_STARTUP_ROM)
551
#define PLATFORM_SETUP1 _platform_setup1
552
#define CYGHWR_HAL_ARM_HAS_MMU
553
#else
554
#define PLATFORM_SETUP1
555
#endif
556
 
557
.macro _platform_setup1
558
        .rept 0x20/4
559
        nop
560
        .endr
561
        b               1f
562
 
563
.globl mpc50_static_info        // Space for some static information
564
mpc50_static_info:
565
        .byte 'M','P','C','5'   // Magic
566
        .rept 16
567
        .long 0
568
        .endr
569
1:
570
        init_mmu_off                    // MMU on (and Cache)
571
        init_mpc_gpio                   // GPIOs 
572
        LED(12)
573
        init_sdram_cnt                  // SDRAM 
574
        LED(11)
575
        init_intc_cnt                   // Interrupt Controller 
576
        LED(10)
577
        init_clks                               // Clocks 
578
        LED(9)
579
        init_mmu_cache_on               // MMU and Cache 
580
        LED(8)
581
.endm
582
 
583
#endif /* CYGONCE_HAL_PLATFORM_SETUP_H */
584
 

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