3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
23 * Port to AMCC-440SPE Evaluation Board SOP - April 2005
25 * PCIe supporting routines derived from Linux 440SPe PCIe driver.
32 #include <asm/processor.h>
34 #include <asm/4xx_pcie.h>
38 DECLARE_GLOBAL_DATA_PTR;
40 void fpga_init (void);
44 #define DEBUGF(fmt,args...) printf(fmt ,##args)
46 #define DEBUGF(fmt,args...)
52 int board_early_init_f (void)
54 /*----------------------------------------------------------------------------+
56 +----------------------------------------------------------------------------*/
57 #define BOOT_FROM_SMALL_FLASH 0x00
58 #define BOOT_FROM_LARGE_FLASH_OR_SRAM 0x01
59 #define BOOT_FROM_PCI 0x02
60 #define BOOT_DEVICE_UNKNOWN 0x03
62 /*----------------------------------------------------------------------------+
63 | EBC Devices Characteristics
64 | Peripheral Bank Access Parameters - EBC_BxAP
65 | Peripheral Bank Configuration Register - EBC_BxCR
66 +----------------------------------------------------------------------------*/
69 * Small Flash and FRAM
71 * BxAP : 0x03800000 - 0 00000111 0 00 00 00 00 00 000 0 0 0 0 00000
72 * B0CR : 0xff098000 - BAS = ff0 - 100 11 00 0000000000000
73 * B2CR : 0xe7098000 - BAS = e70 - 100 11 00 0000000000000
75 #define EBC_BXAP_SMALL_FLASH EBC_BXAP_BME_DISABLED | \
76 EBC_BXAP_TWT_ENCODE(7) | \
77 EBC_BXAP_BCE_DISABLE | \
78 EBC_BXAP_BCT_2TRANS | \
79 EBC_BXAP_CSN_ENCODE(0) | \
80 EBC_BXAP_OEN_ENCODE(0) | \
81 EBC_BXAP_WBN_ENCODE(0) | \
82 EBC_BXAP_WBF_ENCODE(0) | \
83 EBC_BXAP_TH_ENCODE(0) | \
84 EBC_BXAP_RE_DISABLED | \
85 EBC_BXAP_SOR_DELAYED | \
86 EBC_BXAP_BEM_WRITEONLY | \
89 #define EBC_BXCR_SMALL_FLASH_CS0 EBC_BXCR_BAS_ENCODE(0xFF000000) | \
94 #define EBC_BXCR_SMALL_FLASH_CS2 EBC_BXCR_BAS_ENCODE(0xe7000000) | \
100 * Large Flash and SRAM
102 * BxAP : 0x048ff240 - 0 00000111 0 00 00 00 00 00 000 0 0 0 0 00000
103 * B0CR : 0xff09a000 - BAS = ff0 - 100 11 01 0000000000000
104 * B2CR : 0xe709a000 - BAS = e70 - 100 11 01 0000000000000
106 #define EBC_BXAP_LARGE_FLASH EBC_BXAP_BME_DISABLED | \
107 EBC_BXAP_TWT_ENCODE(7) | \
108 EBC_BXAP_BCE_DISABLE | \
109 EBC_BXAP_BCT_2TRANS | \
110 EBC_BXAP_CSN_ENCODE(0) | \
111 EBC_BXAP_OEN_ENCODE(0) | \
112 EBC_BXAP_WBN_ENCODE(0) | \
113 EBC_BXAP_WBF_ENCODE(0) | \
114 EBC_BXAP_TH_ENCODE(0) | \
115 EBC_BXAP_RE_DISABLED | \
116 EBC_BXAP_SOR_DELAYED | \
117 EBC_BXAP_BEM_WRITEONLY | \
118 EBC_BXAP_PEN_DISABLED
120 #define EBC_BXCR_LARGE_FLASH_CS0 EBC_BXCR_BAS_ENCODE(0xFF000000) | \
125 #define EBC_BXCR_LARGE_FLASH_CS2 EBC_BXCR_BAS_ENCODE(0xE7000000) | \
133 * B1AP = 0x05895240 - 0 00001011 0 00 10 01 01 01 001 0 0 1 0 00000
134 * B1CR = 0xe201a000 - BAS = e20 - 000 11 01 00000000000000
136 #define EBC_BXAP_FPGA EBC_BXAP_BME_DISABLED | \
137 EBC_BXAP_TWT_ENCODE(11) | \
138 EBC_BXAP_BCE_DISABLE | \
139 EBC_BXAP_BCT_2TRANS | \
140 EBC_BXAP_CSN_ENCODE(10) | \
141 EBC_BXAP_OEN_ENCODE(1) | \
142 EBC_BXAP_WBN_ENCODE(1) | \
143 EBC_BXAP_WBF_ENCODE(1) | \
144 EBC_BXAP_TH_ENCODE(1) | \
145 EBC_BXAP_RE_DISABLED | \
146 EBC_BXAP_SOR_DELAYED | \
148 EBC_BXAP_PEN_DISABLED
150 #define EBC_BXCR_FPGA_CS1 EBC_BXCR_BAS_ENCODE(0xe2000000) | \
157 * Define Variables for EBC initialization depending on BOOTSTRAP option
159 unsigned long sdr0_pinstp, sdr0_sdstp1 ;
160 unsigned long bootstrap_settings, ebc_data_width, boot_selection;
161 int computed_boot_device = BOOT_DEVICE_UNKNOWN;
163 /*-------------------------------------------------------------------+
164 | Initialize EBC CONFIG -
165 | Keep the Default value, but the bit PDT which has to be set to 1 ?TBC
167 | 0x07C00000 - 0 0 000 1 1 1 1 1 0000 0 00000 000000000000
169 +-------------------------------------------------------------------*/
170 mtebc(xbcfg, EBC_CFG_LE_UNLOCK |
172 EBC_CFG_RTC_16PERCLK |
173 EBC_CFG_ATC_PREVIOUS |
174 EBC_CFG_DTC_PREVIOUS |
175 EBC_CFG_CTC_PREVIOUS |
176 EBC_CFG_OEO_PREVIOUS |
177 EBC_CFG_EMC_DEFAULT |
178 EBC_CFG_PME_DISABLE |
181 /*-------------------------------------------------------------------+
183 | PART 1 : Initialize EBC Bank 1
184 | ==============================
185 | Bank1 is always associated to the EPLD.
186 | It has to be initialized prior to other banks settings computation
187 | since some board registers values may be needed to determine the
190 +-------------------------------------------------------------------*/
191 mtebc(pb1ap, EBC_BXAP_FPGA);
192 mtebc(pb1cr, EBC_BXCR_FPGA_CS1);
194 /*-------------------------------------------------------------------+
196 | PART 2 : Determine which boot device was selected
197 | =================================================
199 | Read Pin Strap Register in PPC440SPe
200 | Result can either be :
201 | - Boot strap = boot from EBC 8bits => Small Flash
202 | - Boot strap = boot from PCI
204 | In case of boot from IIC, read Serial Device Strap Register1
206 | Result can either be :
207 | - Boot from EBC - EBC Bus Width = 8bits => Small Flash
208 | - Boot from EBC - EBC Bus Width = 16bits => Large Flash or SRAM
211 +-------------------------------------------------------------------*/
212 /* Read Pin Strap Register in PPC440SP */
213 mfsdr(SDR0_PINSTP, sdr0_pinstp);
214 bootstrap_settings = sdr0_pinstp & SDR0_PINSTP_BOOTSTRAP_MASK;
216 switch (bootstrap_settings) {
217 case SDR0_PINSTP_BOOTSTRAP_SETTINGS0:
220 * Boot from EBC - 8 bits , Small Flash
222 computed_boot_device = BOOT_FROM_SMALL_FLASH;
224 case SDR0_PINSTP_BOOTSTRAP_SETTINGS1:
226 * Strappping Option B
229 computed_boot_device = BOOT_FROM_PCI;
231 case SDR0_PINSTP_BOOTSTRAP_IIC_50_EN:
232 case SDR0_PINSTP_BOOTSTRAP_IIC_54_EN:
234 * Strapping Option C or D
235 * Boot Settings in IIC EEprom address 0x50 or 0x54
236 * Read Serial Device Strap Register1 in PPC440SPe
238 mfsdr(SDR0_SDSTP1, sdr0_sdstp1);
239 boot_selection = sdr0_sdstp1 & SDR0_SDSTP1_ERPN_MASK;
240 ebc_data_width = sdr0_sdstp1 & SDR0_SDSTP1_EBCW_MASK;
242 switch (boot_selection) {
243 case SDR0_SDSTP1_ERPN_EBC:
244 switch (ebc_data_width) {
245 case SDR0_SDSTP1_EBCW_16_BITS:
246 computed_boot_device =
247 BOOT_FROM_LARGE_FLASH_OR_SRAM;
249 case SDR0_SDSTP1_EBCW_8_BITS :
250 computed_boot_device = BOOT_FROM_SMALL_FLASH;
255 case SDR0_SDSTP1_ERPN_PCI:
256 computed_boot_device = BOOT_FROM_PCI;
259 /* should not occure */
260 computed_boot_device = BOOT_DEVICE_UNKNOWN;
265 computed_boot_device = BOOT_DEVICE_UNKNOWN;
269 /*-------------------------------------------------------------------+
271 | PART 3 : Compute EBC settings depending on selected boot device
272 | ====== ======================================================
274 | Resulting EBC init will be among following configurations :
276 | - Boot from EBC 8bits => boot from Small Flash selected
277 | EBC-CS0 = Small Flash
278 | EBC-CS2 = Large Flash and SRAM
280 | - Boot from EBC 16bits => boot from Large Flash or SRAM
281 | EBC-CS0 = Large Flash or SRAM
282 | EBC-CS2 = Small Flash
285 | EBC-CS0 = not initialized to avoid address contention
286 | EBC-CS2 = same as boot from Small Flash selected
288 +-------------------------------------------------------------------*/
289 unsigned long ebc0_cs0_bxap_value = 0, ebc0_cs0_bxcr_value = 0;
290 unsigned long ebc0_cs2_bxap_value = 0, ebc0_cs2_bxcr_value = 0;
292 switch (computed_boot_device) {
293 /*-------------------------------------------------------------------*/
295 /*-------------------------------------------------------------------*/
297 * By Default CS2 is affected to LARGE Flash
298 * do not initialize SMALL FLASH to avoid address contention
301 ebc0_cs2_bxap_value = EBC_BXAP_LARGE_FLASH;
302 ebc0_cs2_bxcr_value = EBC_BXCR_LARGE_FLASH_CS2;
305 /*-------------------------------------------------------------------*/
306 case BOOT_FROM_SMALL_FLASH:
307 /*-------------------------------------------------------------------*/
308 ebc0_cs0_bxap_value = EBC_BXAP_SMALL_FLASH;
309 ebc0_cs0_bxcr_value = EBC_BXCR_SMALL_FLASH_CS0;
312 * Large Flash or SRAM
314 /* ebc0_cs2_bxap_value = EBC_BXAP_LARGE_FLASH; */
315 ebc0_cs2_bxap_value = 0x048ff240;
316 ebc0_cs2_bxcr_value = EBC_BXCR_LARGE_FLASH_CS2;
319 /*-------------------------------------------------------------------*/
320 case BOOT_FROM_LARGE_FLASH_OR_SRAM:
321 /*-------------------------------------------------------------------*/
322 ebc0_cs0_bxap_value = EBC_BXAP_LARGE_FLASH;
323 ebc0_cs0_bxcr_value = EBC_BXCR_LARGE_FLASH_CS0;
326 ebc0_cs2_bxap_value = EBC_BXAP_SMALL_FLASH;
327 ebc0_cs2_bxcr_value = EBC_BXCR_SMALL_FLASH_CS2;
330 /*-------------------------------------------------------------------*/
332 /*-------------------------------------------------------------------*/
333 /* BOOT_DEVICE_UNKNOWN */
337 mtebc(pb0ap, ebc0_cs0_bxap_value);
338 mtebc(pb0cr, ebc0_cs0_bxcr_value);
339 mtebc(pb2ap, ebc0_cs2_bxap_value);
340 mtebc(pb2cr, ebc0_cs2_bxcr_value);
342 /*--------------------------------------------------------------------+
343 | Interrupt controller setup for the AMCC 440SPe Evaluation board.
344 +--------------------------------------------------------------------+
345 +---------------------------------------------------------------------+
346 |Interrupt| Source | Pol. | Sensi.| Crit. |
347 +---------+-----------------------------------+-------+-------+-------+
348 | IRQ 00 | UART0 | High | Level | Non |
349 | IRQ 01 | UART1 | High | Level | Non |
350 | IRQ 02 | IIC0 | High | Level | Non |
351 | IRQ 03 | IIC1 | High | Level | Non |
352 | IRQ 04 | PCI0X0 MSG IN | High | Level | Non |
353 | IRQ 05 | PCI0X0 CMD Write | High | Level | Non |
354 | IRQ 06 | PCI0X0 Power Mgt | High | Level | Non |
355 | IRQ 07 | PCI0X0 VPD Access | Rising| Edge | Non |
356 | IRQ 08 | PCI0X0 MSI level 0 | High | Lvl/ed| Non |
357 | IRQ 09 | External IRQ 15 - (PCI-Express) | pgm H | Pgm | Non |
358 | IRQ 10 | UIC2 Non-critical Int. | NA | NA | Non |
359 | IRQ 11 | UIC2 Critical Interrupt | NA | NA | Crit |
360 | IRQ 12 | PCI Express MSI Level 0 | Rising| Edge | Non |
361 | IRQ 13 | PCI Express MSI Level 1 | Rising| Edge | Non |
362 | IRQ 14 | PCI Express MSI Level 2 | Rising| Edge | Non |
363 | IRQ 15 | PCI Express MSI Level 3 | Rising| Edge | Non |
364 | IRQ 16 | UIC3 Non-critical Int. | NA | NA | Non |
365 | IRQ 17 | UIC3 Critical Interrupt | NA | NA | Crit |
366 | IRQ 18 | External IRQ 14 - (PCI-Express) | Pgm | Pgm | Non |
367 | IRQ 19 | DMA Channel 0 FIFO Full | High | Level | Non |
368 | IRQ 20 | DMA Channel 0 Stat FIFO | High | Level | Non |
369 | IRQ 21 | DMA Channel 1 FIFO Full | High | Level | Non |
370 | IRQ 22 | DMA Channel 1 Stat FIFO | High | Level | Non |
371 | IRQ 23 | I2O Inbound Doorbell | High | Level | Non |
372 | IRQ 24 | Inbound Post List FIFO Not Empt | High | Level | Non |
373 | IRQ 25 | I2O Region 0 LL PLB Write | High | Level | Non |
374 | IRQ 26 | I2O Region 1 LL PLB Write | High | Level | Non |
375 | IRQ 27 | I2O Region 0 HB PLB Write | High | Level | Non |
376 | IRQ 28 | I2O Region 1 HB PLB Write | High | Level | Non |
377 | IRQ 29 | GPT Down Count Timer | Rising| Edge | Non |
378 | IRQ 30 | UIC1 Non-critical Int. | NA | NA | Non |
379 | IRQ 31 | UIC1 Critical Interrupt | NA | NA | Crit. |
380 |----------------------------------------------------------------------
381 | IRQ 32 | Ext. IRQ 13 - (PCI-Express) |pgm (H)|pgm/Lvl| Non |
382 | IRQ 33 | MAL Serr | High | Level | Non |
383 | IRQ 34 | MAL Txde | High | Level | Non |
384 | IRQ 35 | MAL Rxde | High | Level | Non |
385 | IRQ 36 | DMC CE or DMC UE | High | Level | Non |
386 | IRQ 37 | EBC or UART2 | High |Lvl Edg| Non |
387 | IRQ 38 | MAL TX EOB | High | Level | Non |
388 | IRQ 39 | MAL RX EOB | High | Level | Non |
389 | IRQ 40 | PCIX0 MSI Level 1 | High |Lvl Edg| Non |
390 | IRQ 41 | PCIX0 MSI level 2 | High |Lvl Edg| Non |
391 | IRQ 42 | PCIX0 MSI level 3 | High |Lvl Edg| Non |
392 | IRQ 43 | L2 Cache | Risin | Edge | Non |
393 | IRQ 44 | GPT Compare Timer 0 | Risin | Edge | Non |
394 | IRQ 45 | GPT Compare Timer 1 | Risin | Edge | Non |
395 | IRQ 46 | GPT Compare Timer 2 | Risin | Edge | Non |
396 | IRQ 47 | GPT Compare Timer 3 | Risin | Edge | Non |
397 | IRQ 48 | GPT Compare Timer 4 | Risin | Edge | Non |
398 | IRQ 49 | Ext. IRQ 12 - PCI-X |pgm/Fal|pgm/Lvl| Non |
399 | IRQ 50 | Ext. IRQ 11 - |pgm (H)|pgm/Lvl| Non |
400 | IRQ 51 | Ext. IRQ 10 - |pgm (H)|pgm/Lvl| Non |
401 | IRQ 52 | Ext. IRQ 9 |pgm (H)|pgm/Lvl| Non |
402 | IRQ 53 | Ext. IRQ 8 |pgm (H)|pgm/Lvl| Non |
403 | IRQ 54 | DMA Error | High | Level | Non |
404 | IRQ 55 | DMA I2O Error | High | Level | Non |
405 | IRQ 56 | Serial ROM | High | Level | Non |
406 | IRQ 57 | PCIX0 Error | High | Edge | Non |
407 | IRQ 58 | Ext. IRQ 7- |pgm (H)|pgm/Lvl| Non |
408 | IRQ 59 | Ext. IRQ 6- |pgm (H)|pgm/Lvl| Non |
409 | IRQ 60 | EMAC0 Interrupt | High | Level | Non |
410 | IRQ 61 | EMAC0 Wake-up | High | Level | Non |
411 | IRQ 62 | Reserved | High | Level | Non |
412 | IRQ 63 | XOR | High | Level | Non |
413 |----------------------------------------------------------------------
414 | IRQ 64 | PE0 AL | High | Level | Non |
415 | IRQ 65 | PE0 VPD Access | Risin | Edge | Non |
416 | IRQ 66 | PE0 Hot Reset Request | Risin | Edge | Non |
417 | IRQ 67 | PE0 Hot Reset Request | Falli | Edge | Non |
418 | IRQ 68 | PE0 TCR | High | Level | Non |
419 | IRQ 69 | PE0 BusMaster VCO | Falli | Edge | Non |
420 | IRQ 70 | PE0 DCR Error | High | Level | Non |
421 | IRQ 71 | Reserved | N/A | N/A | Non |
422 | IRQ 72 | PE1 AL | High | Level | Non |
423 | IRQ 73 | PE1 VPD Access | Risin | Edge | Non |
424 | IRQ 74 | PE1 Hot Reset Request | Risin | Edge | Non |
425 | IRQ 75 | PE1 Hot Reset Request | Falli | Edge | Non |
426 | IRQ 76 | PE1 TCR | High | Level | Non |
427 | IRQ 77 | PE1 BusMaster VCO | Falli | Edge | Non |
428 | IRQ 78 | PE1 DCR Error | High | Level | Non |
429 | IRQ 79 | Reserved | N/A | N/A | Non |
430 | IRQ 80 | PE2 AL | High | Level | Non |
431 | IRQ 81 | PE2 VPD Access | Risin | Edge | Non |
432 | IRQ 82 | PE2 Hot Reset Request | Risin | Edge | Non |
433 | IRQ 83 | PE2 Hot Reset Request | Falli | Edge | Non |
434 | IRQ 84 | PE2 TCR | High | Level | Non |
435 | IRQ 85 | PE2 BusMaster VCO | Falli | Edge | Non |
436 | IRQ 86 | PE2 DCR Error | High | Level | Non |
437 | IRQ 87 | Reserved | N/A | N/A | Non |
438 | IRQ 88 | External IRQ(5) | Progr | Progr | Non |
439 | IRQ 89 | External IRQ 4 - Ethernet | Progr | Progr | Non |
440 | IRQ 90 | External IRQ 3 - PCI-X | Progr | Progr | Non |
441 | IRQ 91 | External IRQ 2 - PCI-X | Progr | Progr | Non |
442 | IRQ 92 | External IRQ 1 - PCI-X | Progr | Progr | Non |
443 | IRQ 93 | External IRQ 0 - PCI-X | Progr | Progr | Non |
444 | IRQ 94 | Reserved | N/A | N/A | Non |
445 | IRQ 95 | Reserved | N/A | N/A | Non |
446 |---------------------------------------------------------------------
447 | IRQ 96 | PE0 INTA | High | Level | Non |
448 | IRQ 97 | PE0 INTB | High | Level | Non |
449 | IRQ 98 | PE0 INTC | High | Level | Non |
450 | IRQ 99 | PE0 INTD | High | Level | Non |
451 | IRQ 100 | PE1 INTA | High | Level | Non |
452 | IRQ 101 | PE1 INTB | High | Level | Non |
453 | IRQ 102 | PE1 INTC | High | Level | Non |
454 | IRQ 103 | PE1 INTD | High | Level | Non |
455 | IRQ 104 | PE2 INTA | High | Level | Non |
456 | IRQ 105 | PE2 INTB | High | Level | Non |
457 | IRQ 106 | PE2 INTC | High | Level | Non |
458 | IRQ 107 | PE2 INTD | Risin | Edge | Non |
459 | IRQ 108 | PCI Express MSI Level 4 | Risin | Edge | Non |
460 | IRQ 109 | PCI Express MSI Level 5 | Risin | Edge | Non |
461 | IRQ 110 | PCI Express MSI Level 6 | Risin | Edge | Non |
462 | IRQ 111 | PCI Express MSI Level 7 | Risin | Edge | Non |
463 | IRQ 116 | PCI Express MSI Level 12 | Risin | Edge | Non |
464 | IRQ 112 | PCI Express MSI Level 8 | Risin | Edge | Non |
465 | IRQ 113 | PCI Express MSI Level 9 | Risin | Edge | Non |
466 | IRQ 114 | PCI Express MSI Level 10 | Risin | Edge | Non |
467 | IRQ 115 | PCI Express MSI Level 11 | Risin | Edge | Non |
468 | IRQ 117 | PCI Express MSI Level 13 | Risin | Edge | Non |
469 | IRQ 118 | PCI Express MSI Level 14 | Risin | Edge | Non |
470 | IRQ 119 | PCI Express MSI Level 15 | Risin | Edge | Non |
471 | IRQ 120 | PCI Express MSI Level 16 | Risin | Edge | Non |
472 | IRQ 121 | PCI Express MSI Level 17 | Risin | Edge | Non |
473 | IRQ 122 | PCI Express MSI Level 18 | Risin | Edge | Non |
474 | IRQ 123 | PCI Express MSI Level 19 | Risin | Edge | Non |
475 | IRQ 124 | PCI Express MSI Level 20 | Risin | Edge | Non |
476 | IRQ 125 | PCI Express MSI Level 21 | Risin | Edge | Non |
477 | IRQ 126 | PCI Express MSI Level 22 | Risin | Edge | Non |
478 | IRQ 127 | PCI Express MSI Level 23 | Risin | Edge | Non |
479 +---------+-----------------------------------+-------+-------+------*/
480 /*--------------------------------------------------------------------+
481 | Put UICs in PowerPC440SPemode.
482 | Initialise UIC registers. Clear all interrupts. Disable all
484 | Set critical interrupt values. Set interrupt polarities. Set
485 | interrupt trigger levels. Make bit 0 High priority. Clear all
487 +-------------------------------------------------------------------*/
488 mtdcr (uic3sr, 0xffffffff); /* Clear all interrupts */
489 mtdcr (uic3er, 0x00000000); /* disable all interrupts */
490 mtdcr (uic3cr, 0x00000000); /* Set Critical / Non Critical
492 mtdcr (uic3pr, 0xffffffff); /* Set Interrupt Polarities */
493 mtdcr (uic3tr, 0x001fffff); /* Set Interrupt Trigger Levels */
494 mtdcr (uic3vr, 0x00000001); /* Set Vect base=0,INT31 Highest
496 mtdcr (uic3sr, 0x00000000); /* clear all interrupts */
497 mtdcr (uic3sr, 0xffffffff); /* clear all interrupts */
499 mtdcr (uic2sr, 0xffffffff); /* Clear all interrupts */
500 mtdcr (uic2er, 0x00000000); /* disable all interrupts */
501 mtdcr (uic2cr, 0x00000000); /* Set Critical / Non Critical
503 mtdcr (uic2pr, 0xebebebff); /* Set Interrupt Polarities */
504 mtdcr (uic2tr, 0x74747400); /* Set Interrupt Trigger Levels */
505 mtdcr (uic2vr, 0x00000001); /* Set Vect base=0,INT31 Highest
507 mtdcr (uic2sr, 0x00000000); /* clear all interrupts */
508 mtdcr (uic2sr, 0xffffffff); /* clear all interrupts */
510 mtdcr (uic1sr, 0xffffffff); /* Clear all interrupts */
511 mtdcr (uic1er, 0x00000000); /* disable all interrupts */
512 mtdcr (uic1cr, 0x00000000); /* Set Critical / Non Critical
514 mtdcr (uic1pr, 0xffffffff); /* Set Interrupt Polarities */
515 mtdcr (uic1tr, 0x001f8040); /* Set Interrupt Trigger Levels */
516 mtdcr (uic1vr, 0x00000001); /* Set Vect base=0,INT31 Highest
518 mtdcr (uic1sr, 0x00000000); /* clear all interrupts */
519 mtdcr (uic1sr, 0xffffffff); /* clear all interrupts */
521 mtdcr (uic0sr, 0xffffffff); /* Clear all interrupts */
522 mtdcr (uic0er, 0x00000000); /* disable all interrupts excepted
523 * cascade to be checked */
524 mtdcr (uic0cr, 0x00104001); /* Set Critical / Non Critical
526 mtdcr (uic0pr, 0xffffffff); /* Set Interrupt Polarities */
527 mtdcr (uic0tr, 0x010f0004); /* Set Interrupt Trigger Levels */
528 mtdcr (uic0vr, 0x00000001); /* Set Vect base=0,INT31 Highest
530 mtdcr (uic0sr, 0x00000000); /* clear all interrupts */
531 mtdcr (uic0sr, 0xffffffff); /* clear all interrupts */
534 mfr |= SDR0_MFR_FIXD; /* Workaround for PCI/DMA */
542 int checkboard (void)
544 char *s = getenv("serial#");
546 printf("Board: Yucca - AMCC 440SPe Evaluation Board");
557 * Override the default functions in cpu/ppc4xx/44x_spd_ddr2.c with
558 * board specific values.
560 static int ppc440spe_rev_a(void)
562 if ((get_pvr() == PVR_440SPe_6_RA) || (get_pvr() == PVR_440SPe_RA))
568 u32 ddr_wrdtr(u32 default_val) {
570 * Yucca boards with 440SPe rev. A need a slightly different setup
571 * for the MCIF0_WRDTR register.
573 if (ppc440spe_rev_a())
574 return (SDRAM_WRDTR_LLWP_1_CYC | SDRAM_WRDTR_WTR_270_DEG_ADV);
579 u32 ddr_clktr(u32 default_val) {
581 * Yucca boards with 440SPe rev. A need a slightly different setup
582 * for the MCIF0_CLKTR register.
584 if (ppc440spe_rev_a())
585 return (SDRAM_CLKTR_CLKP_180_DEG_ADV);
590 /*************************************************************************
593 * This routine is called just prior to registering the hose and gives
594 * the board the opportunity to check things. Returning a value of zero
595 * indicates that things are bad & PCI initialization should be aborted.
597 * Different boards may wish to customize the pci controller structure
598 * (add regions, override default access routines, etc) or perform
599 * certain pre-initialization actions.
601 ************************************************************************/
602 #if defined(CONFIG_PCI)
603 int pci_pre_init(struct pci_controller * hose )
607 /*-------------------------------------------------------------------+
608 * The yucca board is always configured as the host & requires the
609 * PCI arbiter to be enabled.
610 *-------------------------------------------------------------------*/
611 mfsdr(sdr_sdstp1, strap);
612 if( (strap & SDR0_SDSTP1_PAE_MASK) == 0 ) {
613 printf("PCI: SDR0_STRP1[%08lX] - PCI Arbiter disabled.\n",strap);
619 #endif /* defined(CONFIG_PCI) */
621 /*************************************************************************
624 * The bootstrap configuration provides default settings for the pci
625 * inbound map (PIM). But the bootstrap config choices are limited and
626 * may not be sufficient for a given board.
628 ************************************************************************/
629 #if defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_TARGET_INIT)
630 void pci_target_init(struct pci_controller * hose )
632 /*-------------------------------------------------------------------+
634 *-------------------------------------------------------------------*/
635 out32r( PCIX0_PIM0SA, 0 ); /* disable */
636 out32r( PCIX0_PIM1SA, 0 ); /* disable */
637 out32r( PCIX0_PIM2SA, 0 ); /* disable */
638 out32r( PCIX0_EROMBA, 0 ); /* disable expansion rom */
640 /*-------------------------------------------------------------------+
641 * Map all of SDRAM to PCI address 0x0000_0000. Note that the 440
642 * strapping options to not support sizes such as 128/256 MB.
643 *-------------------------------------------------------------------*/
644 out32r( PCIX0_PIM0LAL, CONFIG_SYS_SDRAM_BASE );
645 out32r( PCIX0_PIM0LAH, 0 );
646 out32r( PCIX0_PIM0SA, ~(gd->ram_size - 1) | 1 );
647 out32r( PCIX0_BAR0, 0 );
649 /*-------------------------------------------------------------------+
650 * Program the board's subsystem id/vendor id
651 *-------------------------------------------------------------------*/
652 out16r( PCIX0_SBSYSVID, CONFIG_SYS_PCI_SUBSYS_VENDORID );
653 out16r( PCIX0_SBSYSID, CONFIG_SYS_PCI_SUBSYS_DEVICEID );
655 out16r( PCIX0_CMD, in16r(PCIX0_CMD) | PCI_COMMAND_MEMORY );
657 #endif /* defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_TARGET_INIT) */
659 #if defined(CONFIG_PCI)
660 /*************************************************************************
663 * This routine is called to determine if a pci scan should be
664 * performed. With various hardware environments (especially cPCI and
665 * PPMC) it's insufficient to depend on the state of the arbiter enable
666 * bit in the strap register, or generic host/adapter assumptions.
668 * Rather than hard-code a bad assumption in the general 440 code, the
669 * 440 pci code requires the board to decide at runtime.
671 * Return 0 for adapter mode, non-zero for host (monarch) mode.
674 ************************************************************************/
675 int is_pci_host(struct pci_controller *hose)
677 /* The yucca board is always configured as host. */
681 static int yucca_pcie_card_present(int port)
685 reg = in_be16((u16 *)FPGA_REG1C);
688 return !(reg & FPGA_REG1C_PE0_PRSNT);
690 return !(reg & FPGA_REG1C_PE1_PRSNT);
692 return !(reg & FPGA_REG1C_PE2_PRSNT);
699 * For the given slot, set rootpoint mode, send power to the slot,
700 * turn on the green LED and turn off the yellow LED, enable the clock
701 * and turn off reset.
703 void yucca_setup_pcie_fpga_rootpoint(int port)
705 u16 power, clock, green_led, yellow_led, reset_off, rootpoint, endpoint;
709 rootpoint = FPGA_REG1C_PE0_ROOTPOINT;
711 power = FPGA_REG1A_PE0_PWRON;
712 green_led = FPGA_REG1A_PE0_GLED;
713 clock = FPGA_REG1A_PE0_REFCLK_ENABLE;
714 yellow_led = FPGA_REG1A_PE0_YLED;
715 reset_off = FPGA_REG1C_PE0_PERST;
719 endpoint = FPGA_REG1C_PE1_ENDPOINT;
720 power = FPGA_REG1A_PE1_PWRON;
721 green_led = FPGA_REG1A_PE1_GLED;
722 clock = FPGA_REG1A_PE1_REFCLK_ENABLE;
723 yellow_led = FPGA_REG1A_PE1_YLED;
724 reset_off = FPGA_REG1C_PE1_PERST;
728 endpoint = FPGA_REG1C_PE2_ENDPOINT;
729 power = FPGA_REG1A_PE2_PWRON;
730 green_led = FPGA_REG1A_PE2_GLED;
731 clock = FPGA_REG1A_PE2_REFCLK_ENABLE;
732 yellow_led = FPGA_REG1A_PE2_YLED;
733 reset_off = FPGA_REG1C_PE2_PERST;
740 out_be16((u16 *)FPGA_REG1A,
741 ~(power | clock | green_led) &
742 (yellow_led | in_be16((u16 *)FPGA_REG1A)));
744 out_be16((u16 *)FPGA_REG1C,
745 ~(endpoint | reset_off) &
746 (rootpoint | in_be16((u16 *)FPGA_REG1C)));
748 * Leave device in reset for a while after powering on the
749 * slot to give it a chance to initialize.
753 out_be16((u16 *)FPGA_REG1C, reset_off | in_be16((u16 *)FPGA_REG1C));
756 * For the given slot, set endpoint mode, send power to the slot,
757 * turn on the green LED and turn off the yellow LED, enable the clock
758 * .In end point mode reset bit is read only.
760 void yucca_setup_pcie_fpga_endpoint(int port)
762 u16 power, clock, green_led, yellow_led, reset_off, rootpoint, endpoint;
766 rootpoint = FPGA_REG1C_PE0_ROOTPOINT;
768 power = FPGA_REG1A_PE0_PWRON;
769 green_led = FPGA_REG1A_PE0_GLED;
770 clock = FPGA_REG1A_PE0_REFCLK_ENABLE;
771 yellow_led = FPGA_REG1A_PE0_YLED;
772 reset_off = FPGA_REG1C_PE0_PERST;
776 endpoint = FPGA_REG1C_PE1_ENDPOINT;
777 power = FPGA_REG1A_PE1_PWRON;
778 green_led = FPGA_REG1A_PE1_GLED;
779 clock = FPGA_REG1A_PE1_REFCLK_ENABLE;
780 yellow_led = FPGA_REG1A_PE1_YLED;
781 reset_off = FPGA_REG1C_PE1_PERST;
785 endpoint = FPGA_REG1C_PE2_ENDPOINT;
786 power = FPGA_REG1A_PE2_PWRON;
787 green_led = FPGA_REG1A_PE2_GLED;
788 clock = FPGA_REG1A_PE2_REFCLK_ENABLE;
789 yellow_led = FPGA_REG1A_PE2_YLED;
790 reset_off = FPGA_REG1C_PE2_PERST;
797 out_be16((u16 *)FPGA_REG1A,
798 ~(power | clock | green_led) &
799 (yellow_led | in_be16((u16 *)FPGA_REG1A)));
801 out_be16((u16 *)FPGA_REG1C,
802 ~(rootpoint | reset_off) &
803 (endpoint | in_be16((u16 *)FPGA_REG1C)));
806 static struct pci_controller pcie_hose[3] = {{0},{0},{0}};
808 void pcie_setup_hoses(int busno)
810 struct pci_controller *hose;
817 * assume we're called after the PCIX hose is initialized, which takes
818 * bus ID 0 and therefore start numbering PCIe's from 1.
821 for (i = 0; i <= 2; i++) {
822 /* Check for yucca card presence */
823 if (!yucca_pcie_card_present(i))
826 if (is_end_point(i)) {
827 yucca_setup_pcie_fpga_endpoint(i);
828 ret = ppc4xx_init_pcie_endport(i);
830 yucca_setup_pcie_fpga_rootpoint(i);
831 ret = ppc4xx_init_pcie_rootport(i);
834 printf("PCIE%d: initialization as %s failed\n", i,
835 is_end_point(i) ? "endpoint" : "root-complex");
839 hose = &pcie_hose[i];
840 hose->first_busno = bus;
841 hose->last_busno = bus;
842 hose->current_busno = bus;
844 /* setup mem resource */
845 pci_set_region(hose->regions + 0,
846 CONFIG_SYS_PCIE_MEMBASE + i * CONFIG_SYS_PCIE_MEMSIZE,
847 CONFIG_SYS_PCIE_MEMBASE + i * CONFIG_SYS_PCIE_MEMSIZE,
848 CONFIG_SYS_PCIE_MEMSIZE,
850 hose->region_count = 1;
851 pci_register_hose(hose);
853 if (is_end_point(i)) {
854 ppc4xx_setup_pcie_endpoint(hose, i);
856 * Reson for no scanning is endpoint can not generate
857 * upstream configuration accesses.
860 ppc4xx_setup_pcie_rootpoint(hose, i);
861 env = getenv("pciscandelay");
863 delay = simple_strtoul(env, NULL, 10);
865 printf("Warning, expect noticable delay before "
866 "PCIe scan due to 'pciscandelay' value!\n");
867 mdelay(delay * 1000);
871 * Config access can only go down stream
873 hose->last_busno = pci_hose_scan(hose);
874 bus = hose->last_busno + 1;
878 #endif /* defined(CONFIG_PCI) */
880 int misc_init_f (void)
884 out16(FPGA_REG10, (in16(FPGA_REG10) &
885 ~(FPGA_REG10_AUTO_NEG_DIS|FPGA_REG10_RESET_ETH)) |
886 FPGA_REG10_10MHZ_ENABLE |
887 FPGA_REG10_100MHZ_ENABLE |
888 FPGA_REG10_GIGABIT_ENABLE |
889 FPGA_REG10_FULL_DUPLEX );
891 udelay(10000); /* wait 10ms */
893 out16(FPGA_REG10, (in16(FPGA_REG10) | FPGA_REG10_RESET_ETH));
895 /* minimal init for PCIe */
896 /* pci express 0 Endpoint Mode */
897 mfsdr(SDRN_PESDR_DLPSET(0), reg);
898 reg &= (~0x00400000);
899 mtsdr(SDRN_PESDR_DLPSET(0), reg);
900 /* pci express 1 Rootpoint Mode */
901 mfsdr(SDRN_PESDR_DLPSET(1), reg);
903 mtsdr(SDRN_PESDR_DLPSET(1), reg);
904 /* pci express 2 Rootpoint Mode */
905 mfsdr(SDRN_PESDR_DLPSET(2), reg);
907 mtsdr(SDRN_PESDR_DLPSET(2), reg);
909 out16(FPGA_REG1C,(in16 (FPGA_REG1C) &
910 ~FPGA_REG1C_PE0_ROOTPOINT &
911 ~FPGA_REG1C_PE1_ENDPOINT &
912 ~FPGA_REG1C_PE2_ENDPOINT));
920 * by default sdram access is disabled by fpga
922 out16(FPGA_REG10, (in16 (FPGA_REG10) |
923 FPGA_REG10_SDRAM_ENABLE |
924 FPGA_REG10_ENABLE_DISPLAY ));
931 * Returns 1 if keys pressed to start the power-on long-running tests
932 * Called from board_init_f().
934 int post_hotkeys_pressed(void)
940 /*---------------------------------------------------------------------------+
941 | onboard_pci_arbiter_selected => from EPLD
942 +---------------------------------------------------------------------------*/
943 int onboard_pci_arbiter_selected(int core_pci)
946 unsigned long onboard_pci_arbiter_sel;
948 onboard_pci_arbiter_sel = in16(FPGA_REG0) & FPGA_REG0_EXT_ARB_SEL_MASK;
950 if (onboard_pci_arbiter_sel == FPGA_REG0_EXT_ARB_SEL_EXTERNAL)
951 return (BOARD_OPTION_SELECTED);
954 return (BOARD_OPTION_NOT_SELECTED);
957 int board_eth_init(bd_t *bis)
959 return pci_eth_init(bis);