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Marian Balakowicz6c5879f2006-06-30 16:30:46 +02001/*
2 * (C) Copyright 2006
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
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.
12 *
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.
17 *
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,
21 * MA 02111-1307 USA
22 *
23 * Port to AMCC-440SPE Evaluation Board SOP - April 2005
Rafal Jaworowski692519b2006-08-10 12:43:17 +020024 *
25 * PCIe supporting routines derived from Linux 440SPe PCIe driver.
Marian Balakowicz6c5879f2006-06-30 16:30:46 +020026 */
27
28#include <common.h>
29#include <ppc4xx.h>
30#include <asm/processor.h>
31#include <i2c.h>
Rafal Jaworowski692519b2006-08-10 12:43:17 +020032#include <asm-ppc/io.h>
33
Marian Balakowicz6c5879f2006-06-30 16:30:46 +020034#include "yucca.h"
Stefan Roese2b393b02006-08-29 08:05:15 +020035#include "../cpu/ppc4xx/440spe_pcie.h"
36
37#undef PCIE_ENDPOINT
38/* #define PCIE_ENDPOINT 1 */
Marian Balakowicz6c5879f2006-06-30 16:30:46 +020039
40void fpga_init (void);
41
42void get_sys_info(PPC440_SYS_INFO *board_cfg );
43int compare_to_true(char *str );
44char *remove_l_w_space(char *in_str );
45char *remove_t_w_space(char *in_str );
46int get_console_port(void);
Marian Balakowicz6c5879f2006-06-30 16:30:46 +020047
Rafal Jaworowski692519b2006-08-10 12:43:17 +020048int ppc440spe_init_pcie_rootport(int port);
49void ppc440spe_setup_pcie(struct pci_controller *hose, int port);
50
Marian Balakowicz6c5879f2006-06-30 16:30:46 +020051#define DEBUG_ENV
52#ifdef DEBUG_ENV
53#define DEBUGF(fmt,args...) printf(fmt ,##args)
54#else
55#define DEBUGF(fmt,args...)
56#endif
57
58#define FALSE 0
59#define TRUE 1
60
61int board_early_init_f (void)
62{
63/*----------------------------------------------------------------------------+
64| Define Boot devices
65+----------------------------------------------------------------------------*/
66#define BOOT_FROM_SMALL_FLASH 0x00
67#define BOOT_FROM_LARGE_FLASH_OR_SRAM 0x01
68#define BOOT_FROM_PCI 0x02
69#define BOOT_DEVICE_UNKNOWN 0x03
70
71/*----------------------------------------------------------------------------+
72| EBC Devices Characteristics
73| Peripheral Bank Access Parameters - EBC_BxAP
74| Peripheral Bank Configuration Register - EBC_BxCR
75+----------------------------------------------------------------------------*/
76
77/*
78 * Small Flash and FRAM
79 * BU Value
80 * BxAP : 0x03800000 - 0 00000111 0 00 00 00 00 00 000 0 0 0 0 00000
81 * B0CR : 0xff098000 - BAS = ff0 - 100 11 00 0000000000000
82 * B2CR : 0xe7098000 - BAS = e70 - 100 11 00 0000000000000
83 */
84#define EBC_BXAP_SMALL_FLASH EBC_BXAP_BME_DISABLED | \
85 EBC_BXAP_TWT_ENCODE(7) | \
86 EBC_BXAP_BCE_DISABLE | \
87 EBC_BXAP_BCT_2TRANS | \
88 EBC_BXAP_CSN_ENCODE(0) | \
89 EBC_BXAP_OEN_ENCODE(0) | \
90 EBC_BXAP_WBN_ENCODE(0) | \
91 EBC_BXAP_WBF_ENCODE(0) | \
92 EBC_BXAP_TH_ENCODE(0) | \
93 EBC_BXAP_RE_DISABLED | \
94 EBC_BXAP_SOR_DELAYED | \
95 EBC_BXAP_BEM_WRITEONLY | \
96 EBC_BXAP_PEN_DISABLED
97
98#define EBC_BXCR_SMALL_FLASH_CS0 EBC_BXCR_BAS_ENCODE(0xFF000000) | \
99 EBC_BXCR_BS_16MB | \
100 EBC_BXCR_BU_RW | \
101 EBC_BXCR_BW_8BIT
102
103#define EBC_BXCR_SMALL_FLASH_CS2 EBC_BXCR_BAS_ENCODE(0xe7000000) | \
104 EBC_BXCR_BS_16MB | \
105 EBC_BXCR_BU_RW | \
106 EBC_BXCR_BW_8BIT
107
108/*
109 * Large Flash and SRAM
110 * BU Value
111 * BxAP : 0x048ff240 - 0 00000111 0 00 00 00 00 00 000 0 0 0 0 00000
112 * B0CR : 0xff09a000 - BAS = ff0 - 100 11 01 0000000000000
113 * B2CR : 0xe709a000 - BAS = e70 - 100 11 01 0000000000000
114*/
115#define EBC_BXAP_LARGE_FLASH EBC_BXAP_BME_DISABLED | \
116 EBC_BXAP_TWT_ENCODE(7) | \
117 EBC_BXAP_BCE_DISABLE | \
118 EBC_BXAP_BCT_2TRANS | \
119 EBC_BXAP_CSN_ENCODE(0) | \
120 EBC_BXAP_OEN_ENCODE(0) | \
121 EBC_BXAP_WBN_ENCODE(0) | \
122 EBC_BXAP_WBF_ENCODE(0) | \
123 EBC_BXAP_TH_ENCODE(0) | \
124 EBC_BXAP_RE_DISABLED | \
125 EBC_BXAP_SOR_DELAYED | \
126 EBC_BXAP_BEM_WRITEONLY | \
127 EBC_BXAP_PEN_DISABLED
128
129#define EBC_BXCR_LARGE_FLASH_CS0 EBC_BXCR_BAS_ENCODE(0xFF000000) | \
130 EBC_BXCR_BS_16MB | \
131 EBC_BXCR_BU_RW | \
132 EBC_BXCR_BW_16BIT
133
134#define EBC_BXCR_LARGE_FLASH_CS2 EBC_BXCR_BAS_ENCODE(0xE7000000) | \
135 EBC_BXCR_BS_16MB | \
136 EBC_BXCR_BU_RW | \
137 EBC_BXCR_BW_16BIT
138
139/*
140 * FPGA
141 * BU value :
142 * B1AP = 0x05895240 - 0 00001011 0 00 10 01 01 01 001 0 0 1 0 00000
143 * B1CR = 0xe201a000 - BAS = e20 - 000 11 01 00000000000000
144 */
145#define EBC_BXAP_FPGA EBC_BXAP_BME_DISABLED | \
146 EBC_BXAP_TWT_ENCODE(11) | \
147 EBC_BXAP_BCE_DISABLE | \
148 EBC_BXAP_BCT_2TRANS | \
149 EBC_BXAP_CSN_ENCODE(10) | \
150 EBC_BXAP_OEN_ENCODE(1) | \
151 EBC_BXAP_WBN_ENCODE(1) | \
152 EBC_BXAP_WBF_ENCODE(1) | \
153 EBC_BXAP_TH_ENCODE(1) | \
154 EBC_BXAP_RE_DISABLED | \
155 EBC_BXAP_SOR_DELAYED | \
156 EBC_BXAP_BEM_RW | \
157 EBC_BXAP_PEN_DISABLED
158
159#define EBC_BXCR_FPGA_CS1 EBC_BXCR_BAS_ENCODE(0xe2000000) | \
160 EBC_BXCR_BS_1MB | \
161 EBC_BXCR_BU_RW | \
162 EBC_BXCR_BW_16BIT
163
164 unsigned long mfr;
165 /*
166 * Define Variables for EBC initialization depending on BOOTSTRAP option
167 */
168 unsigned long sdr0_pinstp, sdr0_sdstp1 ;
169 unsigned long bootstrap_settings, ebc_data_width, boot_selection;
170 int computed_boot_device = BOOT_DEVICE_UNKNOWN;
171
172 /*-------------------------------------------------------------------+
173 | Initialize EBC CONFIG -
174 | Keep the Default value, but the bit PDT which has to be set to 1 ?TBC
175 | default value :
176 | 0x07C00000 - 0 0 000 1 1 1 1 1 0000 0 00000 000000000000
177 |
178 +-------------------------------------------------------------------*/
179 mtebc(xbcfg, EBC_CFG_LE_UNLOCK |
180 EBC_CFG_PTD_ENABLE |
181 EBC_CFG_RTC_16PERCLK |
182 EBC_CFG_ATC_PREVIOUS |
183 EBC_CFG_DTC_PREVIOUS |
184 EBC_CFG_CTC_PREVIOUS |
185 EBC_CFG_OEO_PREVIOUS |
186 EBC_CFG_EMC_DEFAULT |
187 EBC_CFG_PME_DISABLE |
188 EBC_CFG_PR_16);
189
190 /*-------------------------------------------------------------------+
191 |
192 | PART 1 : Initialize EBC Bank 1
193 | ==============================
194 | Bank1 is always associated to the EPLD.
195 | It has to be initialized prior to other banks settings computation
196 | since some board registers values may be needed to determine the
197 | boot type
198 |
199 +-------------------------------------------------------------------*/
200 mtebc(pb1ap, EBC_BXAP_FPGA);
201 mtebc(pb1cr, EBC_BXCR_FPGA_CS1);
202
203 /*-------------------------------------------------------------------+
204 |
205 | PART 2 : Determine which boot device was selected
206 | =================================================
207 |
208 | Read Pin Strap Register in PPC440SPe
209 | Result can either be :
210 | - Boot strap = boot from EBC 8bits => Small Flash
211 | - Boot strap = boot from PCI
212 | - Boot strap = IIC
213 | In case of boot from IIC, read Serial Device Strap Register1
214 |
215 | Result can either be :
216 | - Boot from EBC - EBC Bus Width = 8bits => Small Flash
217 | - Boot from EBC - EBC Bus Width = 16bits => Large Flash or SRAM
218 | - Boot from PCI
219 |
220 +-------------------------------------------------------------------*/
221 /* Read Pin Strap Register in PPC440SP */
Stefan Roese2f5df472007-03-08 10:10:18 +0100222 mfsdr(SDR0_PINSTP, sdr0_pinstp);
Marian Balakowicz6c5879f2006-06-30 16:30:46 +0200223 bootstrap_settings = sdr0_pinstp & SDR0_PINSTP_BOOTSTRAP_MASK;
224
225 switch (bootstrap_settings) {
226 case SDR0_PINSTP_BOOTSTRAP_SETTINGS0:
227 /*
228 * Strapping Option A
229 * Boot from EBC - 8 bits , Small Flash
230 */
231 computed_boot_device = BOOT_FROM_SMALL_FLASH;
232 break;
233 case SDR0_PINSTP_BOOTSTRAP_SETTINGS1:
234 /*
235 * Strappping Option B
236 * Boot from PCI
237 */
238 computed_boot_device = BOOT_FROM_PCI;
239 break;
240 case SDR0_PINSTP_BOOTSTRAP_IIC_50_EN:
241 case SDR0_PINSTP_BOOTSTRAP_IIC_54_EN:
242 /*
243 * Strapping Option C or D
244 * Boot Settings in IIC EEprom address 0x50 or 0x54
245 * Read Serial Device Strap Register1 in PPC440SPe
246 */
Stefan Roese2f5df472007-03-08 10:10:18 +0100247 mfsdr(SDR0_SDSTP1, sdr0_sdstp1);
Marian Balakowicz6c5879f2006-06-30 16:30:46 +0200248 boot_selection = sdr0_sdstp1 & SDR0_SDSTP1_ERPN_MASK;
249 ebc_data_width = sdr0_sdstp1 & SDR0_SDSTP1_EBCW_MASK;
250
251 switch (boot_selection) {
252 case SDR0_SDSTP1_ERPN_EBC:
253 switch (ebc_data_width) {
254 case SDR0_SDSTP1_EBCW_16_BITS:
255 computed_boot_device =
256 BOOT_FROM_LARGE_FLASH_OR_SRAM;
257 break;
258 case SDR0_SDSTP1_EBCW_8_BITS :
259 computed_boot_device = BOOT_FROM_SMALL_FLASH;
260 break;
261 }
262 break;
263
264 case SDR0_SDSTP1_ERPN_PCI:
265 computed_boot_device = BOOT_FROM_PCI;
266 break;
267 default:
268 /* should not occure */
269 computed_boot_device = BOOT_DEVICE_UNKNOWN;
270 }
271 break;
272 default:
273 /* should not be */
274 computed_boot_device = BOOT_DEVICE_UNKNOWN;
275 break;
276 }
277
278 /*-------------------------------------------------------------------+
279 |
280 | PART 3 : Compute EBC settings depending on selected boot device
281 | ====== ======================================================
282 |
283 | Resulting EBC init will be among following configurations :
284 |
285 | - Boot from EBC 8bits => boot from Small Flash selected
286 | EBC-CS0 = Small Flash
287 | EBC-CS2 = Large Flash and SRAM
288 |
289 | - Boot from EBC 16bits => boot from Large Flash or SRAM
290 | EBC-CS0 = Large Flash or SRAM
291 | EBC-CS2 = Small Flash
292 |
293 | - Boot from PCI
294 | EBC-CS0 = not initialized to avoid address contention
295 | EBC-CS2 = same as boot from Small Flash selected
296 |
297 +-------------------------------------------------------------------*/
298 unsigned long ebc0_cs0_bxap_value = 0, ebc0_cs0_bxcr_value = 0;
299 unsigned long ebc0_cs2_bxap_value = 0, ebc0_cs2_bxcr_value = 0;
300
301 switch (computed_boot_device) {
302 /*-------------------------------------------------------------------*/
303 case BOOT_FROM_PCI:
304 /*-------------------------------------------------------------------*/
305 /*
306 * By Default CS2 is affected to LARGE Flash
307 * do not initialize SMALL FLASH to avoid address contention
308 * Large Flash
309 */
310 ebc0_cs2_bxap_value = EBC_BXAP_LARGE_FLASH;
311 ebc0_cs2_bxcr_value = EBC_BXCR_LARGE_FLASH_CS2;
312 break;
313
314 /*-------------------------------------------------------------------*/
315 case BOOT_FROM_SMALL_FLASH:
316 /*-------------------------------------------------------------------*/
317 ebc0_cs0_bxap_value = EBC_BXAP_SMALL_FLASH;
318 ebc0_cs0_bxcr_value = EBC_BXCR_SMALL_FLASH_CS0;
319
320 /*
321 * Large Flash or SRAM
322 */
323 /* ebc0_cs2_bxap_value = EBC_BXAP_LARGE_FLASH; */
324 ebc0_cs2_bxap_value = 0x048ff240;
325 ebc0_cs2_bxcr_value = EBC_BXCR_LARGE_FLASH_CS2;
326 break;
327
328 /*-------------------------------------------------------------------*/
329 case BOOT_FROM_LARGE_FLASH_OR_SRAM:
330 /*-------------------------------------------------------------------*/
331 ebc0_cs0_bxap_value = EBC_BXAP_LARGE_FLASH;
332 ebc0_cs0_bxcr_value = EBC_BXCR_LARGE_FLASH_CS0;
333
334 /* Small flash */
335 ebc0_cs2_bxap_value = EBC_BXAP_SMALL_FLASH;
336 ebc0_cs2_bxcr_value = EBC_BXCR_SMALL_FLASH_CS2;
337 break;
338
339 /*-------------------------------------------------------------------*/
340 default:
341 /*-------------------------------------------------------------------*/
342 /* BOOT_DEVICE_UNKNOWN */
343 break;
344 }
345
346 mtebc(pb0ap, ebc0_cs0_bxap_value);
347 mtebc(pb0cr, ebc0_cs0_bxcr_value);
348 mtebc(pb2ap, ebc0_cs2_bxap_value);
349 mtebc(pb2cr, ebc0_cs2_bxcr_value);
350
351 /*--------------------------------------------------------------------+
352 | Interrupt controller setup for the AMCC 440SPe Evaluation board.
353 +--------------------------------------------------------------------+
354 +---------------------------------------------------------------------+
355 |Interrupt| Source | Pol. | Sensi.| Crit. |
356 +---------+-----------------------------------+-------+-------+-------+
357 | IRQ 00 | UART0 | High | Level | Non |
358 | IRQ 01 | UART1 | High | Level | Non |
359 | IRQ 02 | IIC0 | High | Level | Non |
360 | IRQ 03 | IIC1 | High | Level | Non |
361 | IRQ 04 | PCI0X0 MSG IN | High | Level | Non |
362 | IRQ 05 | PCI0X0 CMD Write | High | Level | Non |
363 | IRQ 06 | PCI0X0 Power Mgt | High | Level | Non |
364 | IRQ 07 | PCI0X0 VPD Access | Rising| Edge | Non |
365 | IRQ 08 | PCI0X0 MSI level 0 | High | Lvl/ed| Non |
366 | IRQ 09 | External IRQ 15 - (PCI-Express) | pgm H | Pgm | Non |
367 | IRQ 10 | UIC2 Non-critical Int. | NA | NA | Non |
368 | IRQ 11 | UIC2 Critical Interrupt | NA | NA | Crit |
369 | IRQ 12 | PCI Express MSI Level 0 | Rising| Edge | Non |
370 | IRQ 13 | PCI Express MSI Level 1 | Rising| Edge | Non |
371 | IRQ 14 | PCI Express MSI Level 2 | Rising| Edge | Non |
372 | IRQ 15 | PCI Express MSI Level 3 | Rising| Edge | Non |
373 | IRQ 16 | UIC3 Non-critical Int. | NA | NA | Non |
374 | IRQ 17 | UIC3 Critical Interrupt | NA | NA | Crit |
375 | IRQ 18 | External IRQ 14 - (PCI-Express) | Pgm | Pgm | Non |
376 | IRQ 19 | DMA Channel 0 FIFO Full | High | Level | Non |
377 | IRQ 20 | DMA Channel 0 Stat FIFO | High | Level | Non |
378 | IRQ 21 | DMA Channel 1 FIFO Full | High | Level | Non |
379 | IRQ 22 | DMA Channel 1 Stat FIFO | High | Level | Non |
380 | IRQ 23 | I2O Inbound Doorbell | High | Level | Non |
381 | IRQ 24 | Inbound Post List FIFO Not Empt | High | Level | Non |
382 | IRQ 25 | I2O Region 0 LL PLB Write | High | Level | Non |
383 | IRQ 26 | I2O Region 1 LL PLB Write | High | Level | Non |
384 | IRQ 27 | I2O Region 0 HB PLB Write | High | Level | Non |
385 | IRQ 28 | I2O Region 1 HB PLB Write | High | Level | Non |
386 | IRQ 29 | GPT Down Count Timer | Rising| Edge | Non |
387 | IRQ 30 | UIC1 Non-critical Int. | NA | NA | Non |
388 | IRQ 31 | UIC1 Critical Interrupt | NA | NA | Crit. |
389 |----------------------------------------------------------------------
390 | IRQ 32 | Ext. IRQ 13 - (PCI-Express) |pgm (H)|pgm/Lvl| Non |
391 | IRQ 33 | MAL Serr | High | Level | Non |
392 | IRQ 34 | MAL Txde | High | Level | Non |
393 | IRQ 35 | MAL Rxde | High | Level | Non |
394 | IRQ 36 | DMC CE or DMC UE | High | Level | Non |
395 | IRQ 37 | EBC or UART2 | High |Lvl Edg| Non |
396 | IRQ 38 | MAL TX EOB | High | Level | Non |
397 | IRQ 39 | MAL RX EOB | High | Level | Non |
398 | IRQ 40 | PCIX0 MSI Level 1 | High |Lvl Edg| Non |
399 | IRQ 41 | PCIX0 MSI level 2 | High |Lvl Edg| Non |
400 | IRQ 42 | PCIX0 MSI level 3 | High |Lvl Edg| Non |
401 | IRQ 43 | L2 Cache | Risin | Edge | Non |
402 | IRQ 44 | GPT Compare Timer 0 | Risin | Edge | Non |
403 | IRQ 45 | GPT Compare Timer 1 | Risin | Edge | Non |
404 | IRQ 46 | GPT Compare Timer 2 | Risin | Edge | Non |
405 | IRQ 47 | GPT Compare Timer 3 | Risin | Edge | Non |
406 | IRQ 48 | GPT Compare Timer 4 | Risin | Edge | Non |
407 | IRQ 49 | Ext. IRQ 12 - PCI-X |pgm/Fal|pgm/Lvl| Non |
408 | IRQ 50 | Ext. IRQ 11 - |pgm (H)|pgm/Lvl| Non |
409 | IRQ 51 | Ext. IRQ 10 - |pgm (H)|pgm/Lvl| Non |
410 | IRQ 52 | Ext. IRQ 9 |pgm (H)|pgm/Lvl| Non |
411 | IRQ 53 | Ext. IRQ 8 |pgm (H)|pgm/Lvl| Non |
412 | IRQ 54 | DMA Error | High | Level | Non |
413 | IRQ 55 | DMA I2O Error | High | Level | Non |
414 | IRQ 56 | Serial ROM | High | Level | Non |
415 | IRQ 57 | PCIX0 Error | High | Edge | Non |
416 | IRQ 58 | Ext. IRQ 7- |pgm (H)|pgm/Lvl| Non |
417 | IRQ 59 | Ext. IRQ 6- |pgm (H)|pgm/Lvl| Non |
418 | IRQ 60 | EMAC0 Interrupt | High | Level | Non |
419 | IRQ 61 | EMAC0 Wake-up | High | Level | Non |
420 | IRQ 62 | Reserved | High | Level | Non |
421 | IRQ 63 | XOR | High | Level | Non |
422 |----------------------------------------------------------------------
423 | IRQ 64 | PE0 AL | High | Level | Non |
424 | IRQ 65 | PE0 VPD Access | Risin | Edge | Non |
425 | IRQ 66 | PE0 Hot Reset Request | Risin | Edge | Non |
426 | IRQ 67 | PE0 Hot Reset Request | Falli | Edge | Non |
427 | IRQ 68 | PE0 TCR | High | Level | Non |
428 | IRQ 69 | PE0 BusMaster VCO | Falli | Edge | Non |
429 | IRQ 70 | PE0 DCR Error | High | Level | Non |
430 | IRQ 71 | Reserved | N/A | N/A | Non |
431 | IRQ 72 | PE1 AL | High | Level | Non |
432 | IRQ 73 | PE1 VPD Access | Risin | Edge | Non |
433 | IRQ 74 | PE1 Hot Reset Request | Risin | Edge | Non |
434 | IRQ 75 | PE1 Hot Reset Request | Falli | Edge | Non |
435 | IRQ 76 | PE1 TCR | High | Level | Non |
436 | IRQ 77 | PE1 BusMaster VCO | Falli | Edge | Non |
437 | IRQ 78 | PE1 DCR Error | High | Level | Non |
438 | IRQ 79 | Reserved | N/A | N/A | Non |
439 | IRQ 80 | PE2 AL | High | Level | Non |
440 | IRQ 81 | PE2 VPD Access | Risin | Edge | Non |
441 | IRQ 82 | PE2 Hot Reset Request | Risin | Edge | Non |
442 | IRQ 83 | PE2 Hot Reset Request | Falli | Edge | Non |
443 | IRQ 84 | PE2 TCR | High | Level | Non |
444 | IRQ 85 | PE2 BusMaster VCO | Falli | Edge | Non |
445 | IRQ 86 | PE2 DCR Error | High | Level | Non |
446 | IRQ 87 | Reserved | N/A | N/A | Non |
447 | IRQ 88 | External IRQ(5) | Progr | Progr | Non |
448 | IRQ 89 | External IRQ 4 - Ethernet | Progr | Progr | Non |
449 | IRQ 90 | External IRQ 3 - PCI-X | Progr | Progr | Non |
450 | IRQ 91 | External IRQ 2 - PCI-X | Progr | Progr | Non |
451 | IRQ 92 | External IRQ 1 - PCI-X | Progr | Progr | Non |
452 | IRQ 93 | External IRQ 0 - PCI-X | Progr | Progr | Non |
453 | IRQ 94 | Reserved | N/A | N/A | Non |
454 | IRQ 95 | Reserved | N/A | N/A | Non |
455 |---------------------------------------------------------------------
456 | IRQ 96 | PE0 INTA | High | Level | Non |
457 | IRQ 97 | PE0 INTB | High | Level | Non |
458 | IRQ 98 | PE0 INTC | High | Level | Non |
459 | IRQ 99 | PE0 INTD | High | Level | Non |
460 | IRQ 100 | PE1 INTA | High | Level | Non |
461 | IRQ 101 | PE1 INTB | High | Level | Non |
462 | IRQ 102 | PE1 INTC | High | Level | Non |
463 | IRQ 103 | PE1 INTD | High | Level | Non |
464 | IRQ 104 | PE2 INTA | High | Level | Non |
465 | IRQ 105 | PE2 INTB | High | Level | Non |
466 | IRQ 106 | PE2 INTC | High | Level | Non |
467 | IRQ 107 | PE2 INTD | Risin | Edge | Non |
468 | IRQ 108 | PCI Express MSI Level 4 | Risin | Edge | Non |
469 | IRQ 109 | PCI Express MSI Level 5 | Risin | Edge | Non |
470 | IRQ 110 | PCI Express MSI Level 6 | Risin | Edge | Non |
471 | IRQ 111 | PCI Express MSI Level 7 | Risin | Edge | Non |
472 | IRQ 116 | PCI Express MSI Level 12 | Risin | Edge | Non |
473 | IRQ 112 | PCI Express MSI Level 8 | Risin | Edge | Non |
474 | IRQ 113 | PCI Express MSI Level 9 | Risin | Edge | Non |
475 | IRQ 114 | PCI Express MSI Level 10 | Risin | Edge | Non |
476 | IRQ 115 | PCI Express MSI Level 11 | Risin | Edge | Non |
477 | IRQ 117 | PCI Express MSI Level 13 | Risin | Edge | Non |
478 | IRQ 118 | PCI Express MSI Level 14 | Risin | Edge | Non |
479 | IRQ 119 | PCI Express MSI Level 15 | Risin | Edge | Non |
480 | IRQ 120 | PCI Express MSI Level 16 | Risin | Edge | Non |
481 | IRQ 121 | PCI Express MSI Level 17 | Risin | Edge | Non |
482 | IRQ 122 | PCI Express MSI Level 18 | Risin | Edge | Non |
483 | IRQ 123 | PCI Express MSI Level 19 | Risin | Edge | Non |
484 | IRQ 124 | PCI Express MSI Level 20 | Risin | Edge | Non |
485 | IRQ 125 | PCI Express MSI Level 21 | Risin | Edge | Non |
486 | IRQ 126 | PCI Express MSI Level 22 | Risin | Edge | Non |
487 | IRQ 127 | PCI Express MSI Level 23 | Risin | Edge | Non |
488 +---------+-----------------------------------+-------+-------+------*/
489 /*--------------------------------------------------------------------+
490 | Put UICs in PowerPC440SPemode.
491 | Initialise UIC registers. Clear all interrupts. Disable all
492 | interrupts.
493 | Set critical interrupt values. Set interrupt polarities. Set
494 | interrupt trigger levels. Make bit 0 High priority. Clear all
495 | interrupts again.
496 +-------------------------------------------------------------------*/
497 mtdcr (uic3sr, 0xffffffff); /* Clear all interrupts */
498 mtdcr (uic3er, 0x00000000); /* disable all interrupts */
499 mtdcr (uic3cr, 0x00000000); /* Set Critical / Non Critical
500 * interrupts */
501 mtdcr (uic3pr, 0xffffffff); /* Set Interrupt Polarities */
502 mtdcr (uic3tr, 0x001fffff); /* Set Interrupt Trigger Levels */
503 mtdcr (uic3vr, 0x00000001); /* Set Vect base=0,INT31 Highest
504 * priority */
505 mtdcr (uic3sr, 0x00000000); /* clear all interrupts */
506 mtdcr (uic3sr, 0xffffffff); /* clear all interrupts */
507
508 mtdcr (uic2sr, 0xffffffff); /* Clear all interrupts */
509 mtdcr (uic2er, 0x00000000); /* disable all interrupts */
510 mtdcr (uic2cr, 0x00000000); /* Set Critical / Non Critical
511 * interrupts */
512 mtdcr (uic2pr, 0xebebebff); /* Set Interrupt Polarities */
513 mtdcr (uic2tr, 0x74747400); /* Set Interrupt Trigger Levels */
514 mtdcr (uic2vr, 0x00000001); /* Set Vect base=0,INT31 Highest
515 * priority */
516 mtdcr (uic2sr, 0x00000000); /* clear all interrupts */
517 mtdcr (uic2sr, 0xffffffff); /* clear all interrupts */
518
519 mtdcr (uic1sr, 0xffffffff); /* Clear all interrupts */
520 mtdcr (uic1er, 0x00000000); /* disable all interrupts */
521 mtdcr (uic1cr, 0x00000000); /* Set Critical / Non Critical
522 * interrupts */
523 mtdcr (uic1pr, 0xffffffff); /* Set Interrupt Polarities */
524 mtdcr (uic1tr, 0x001f8040); /* Set Interrupt Trigger Levels */
525 mtdcr (uic1vr, 0x00000001); /* Set Vect base=0,INT31 Highest
526 * priority */
527 mtdcr (uic1sr, 0x00000000); /* clear all interrupts */
528 mtdcr (uic1sr, 0xffffffff); /* clear all interrupts */
529
530 mtdcr (uic0sr, 0xffffffff); /* Clear all interrupts */
531 mtdcr (uic0er, 0x00000000); /* disable all interrupts excepted
532 * cascade to be checked */
533 mtdcr (uic0cr, 0x00104001); /* Set Critical / Non Critical
534 * interrupts */
535 mtdcr (uic0pr, 0xffffffff); /* Set Interrupt Polarities */
536 mtdcr (uic0tr, 0x010f0004); /* Set Interrupt Trigger Levels */
537 mtdcr (uic0vr, 0x00000001); /* Set Vect base=0,INT31 Highest
538 * priority */
539 mtdcr (uic0sr, 0x00000000); /* clear all interrupts */
540 mtdcr (uic0sr, 0xffffffff); /* clear all interrupts */
541
542 /* SDR0_MFR should be part of Ethernet init */
543 mfsdr (sdr_mfr, mfr);
544 mfr &= ~SDR0_MFR_ECS_MASK;
545 /*mtsdr(sdr_mfr, mfr);*/
546 fpga_init();
547
548 return 0;
549}
550
551int checkboard (void)
552{
Marian Balakowiczfe84b482006-07-03 23:42:36 +0200553 char *s = getenv("serial#");
Marian Balakowicz6c5879f2006-06-30 16:30:46 +0200554
Marian Balakowiczfe84b482006-07-03 23:42:36 +0200555 printf("Board: Yucca - AMCC 440SPe Evaluation Board");
556 if (s != NULL) {
557 puts(", serial# ");
558 puts(s);
559 }
560 putc('\n');
Marian Balakowicz6c5879f2006-06-30 16:30:46 +0200561
Marian Balakowicz6c5879f2006-06-30 16:30:46 +0200562 return 0;
563}
564
Marian Balakowicz6c5879f2006-06-30 16:30:46 +0200565#if defined(CFG_DRAM_TEST)
566int testdram (void)
567{
568 uint *pstart = (uint *) 0x00000000;
569 uint *pend = (uint *) 0x08000000;
570 uint *p;
571
572 for (p = pstart; p < pend; p++)
573 *p = 0xaaaaaaaa;
574
575 for (p = pstart; p < pend; p++) {
576 if (*p != 0xaaaaaaaa) {
577 printf ("SDRAM test fails at: %08x\n", (uint) p);
578 return 1;
579 }
580 }
581
582 for (p = pstart; p < pend; p++)
583 *p = 0x55555555;
584
585 for (p = pstart; p < pend; p++) {
586 if (*p != 0x55555555) {
587 printf ("SDRAM test fails at: %08x\n", (uint) p);
588 return 1;
589 }
590 }
591 return 0;
592}
593#endif
594
595/*************************************************************************
596 * pci_pre_init
597 *
598 * This routine is called just prior to registering the hose and gives
599 * the board the opportunity to check things. Returning a value of zero
600 * indicates that things are bad & PCI initialization should be aborted.
601 *
602 * Different boards may wish to customize the pci controller structure
603 * (add regions, override default access routines, etc) or perform
604 * certain pre-initialization actions.
605 *
606 ************************************************************************/
607#if defined(CONFIG_PCI) && defined(CFG_PCI_PRE_INIT)
608int pci_pre_init(struct pci_controller * hose )
609{
610 unsigned long strap;
611
612 /*-------------------------------------------------------------------+
613 * The yucca board is always configured as the host & requires the
614 * PCI arbiter to be enabled.
615 *-------------------------------------------------------------------*/
616 mfsdr(sdr_sdstp1, strap);
617 if( (strap & SDR0_SDSTP1_PAE_MASK) == 0 ) {
618 printf("PCI: SDR0_STRP1[%08lX] - PCI Arbiter disabled.\n",strap);
619 return 0;
620 }
621
622 return 1;
623}
624#endif /* defined(CONFIG_PCI) && defined(CFG_PCI_PRE_INIT) */
625
626/*************************************************************************
627 * pci_target_init
628 *
629 * The bootstrap configuration provides default settings for the pci
630 * inbound map (PIM). But the bootstrap config choices are limited and
631 * may not be sufficient for a given board.
632 *
633 ************************************************************************/
634#if defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT)
635void pci_target_init(struct pci_controller * hose )
636{
637 DECLARE_GLOBAL_DATA_PTR;
638
639 /*-------------------------------------------------------------------+
640 * Disable everything
641 *-------------------------------------------------------------------*/
642 out32r( PCIX0_PIM0SA, 0 ); /* disable */
643 out32r( PCIX0_PIM1SA, 0 ); /* disable */
644 out32r( PCIX0_PIM2SA, 0 ); /* disable */
645 out32r( PCIX0_EROMBA, 0 ); /* disable expansion rom */
646
647 /*-------------------------------------------------------------------+
648 * Map all of SDRAM to PCI address 0x0000_0000. Note that the 440
649 * strapping options to not support sizes such as 128/256 MB.
650 *-------------------------------------------------------------------*/
651 out32r( PCIX0_PIM0LAL, CFG_SDRAM_BASE );
652 out32r( PCIX0_PIM0LAH, 0 );
653 out32r( PCIX0_PIM0SA, ~(gd->ram_size - 1) | 1 );
654 out32r( PCIX0_BAR0, 0 );
655
656 /*-------------------------------------------------------------------+
657 * Program the board's subsystem id/vendor id
658 *-------------------------------------------------------------------*/
659 out16r( PCIX0_SBSYSVID, CFG_PCI_SUBSYS_VENDORID );
660 out16r( PCIX0_SBSYSID, CFG_PCI_SUBSYS_DEVICEID );
661
662 out16r( PCIX0_CMD, in16r(PCIX0_CMD) | PCI_COMMAND_MEMORY );
663}
664#endif /* defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT) */
665
Rafal Jaworowski692519b2006-08-10 12:43:17 +0200666#if defined(CONFIG_PCI)
Marian Balakowicz6c5879f2006-06-30 16:30:46 +0200667/*************************************************************************
668 * is_pci_host
669 *
670 * This routine is called to determine if a pci scan should be
671 * performed. With various hardware environments (especially cPCI and
672 * PPMC) it's insufficient to depend on the state of the arbiter enable
673 * bit in the strap register, or generic host/adapter assumptions.
674 *
675 * Rather than hard-code a bad assumption in the general 440 code, the
676 * 440 pci code requires the board to decide at runtime.
677 *
678 * Return 0 for adapter mode, non-zero for host (monarch) mode.
679 *
680 *
681 ************************************************************************/
Marian Balakowicz6c5879f2006-06-30 16:30:46 +0200682int is_pci_host(struct pci_controller *hose)
683{
684 /* The yucca board is always configured as host. */
685 return 1;
686}
Rafal Jaworowski692519b2006-08-10 12:43:17 +0200687
Rafal Jaworowski692519b2006-08-10 12:43:17 +0200688int yucca_pcie_card_present(int port)
689{
690 u16 reg;
691
692 reg = in_be16((u16 *)FPGA_REG1C);
693 switch(port) {
694 case 0:
695 return !(reg & FPGA_REG1C_PE0_PRSNT);
696 case 1:
697 return !(reg & FPGA_REG1C_PE1_PRSNT);
698 case 2:
699 return !(reg & FPGA_REG1C_PE2_PRSNT);
700 default:
701 return 0;
702 }
703}
704
705/*
706 * For the given slot, set rootpoint mode, send power to the slot,
707 * turn on the green LED and turn off the yellow LED, enable the clock
708 * and turn off reset.
709 */
710void yucca_setup_pcie_fpga_rootpoint(int port)
711{
712 u16 power, clock, green_led, yellow_led, reset_off, rootpoint, endpoint;
713
714 switch(port) {
715 case 0:
716 rootpoint = FPGA_REG1C_PE0_ROOTPOINT;
717 endpoint = 0;
718 power = FPGA_REG1A_PE0_PWRON;
719 green_led = FPGA_REG1A_PE0_GLED;
720 clock = FPGA_REG1A_PE0_REFCLK_ENABLE;
721 yellow_led = FPGA_REG1A_PE0_YLED;
722 reset_off = FPGA_REG1C_PE0_PERST;
723 break;
724 case 1:
725 rootpoint = 0;
726 endpoint = FPGA_REG1C_PE1_ENDPOINT;
727 power = FPGA_REG1A_PE1_PWRON;
728 green_led = FPGA_REG1A_PE1_GLED;
729 clock = FPGA_REG1A_PE1_REFCLK_ENABLE;
730 yellow_led = FPGA_REG1A_PE1_YLED;
731 reset_off = FPGA_REG1C_PE1_PERST;
732 break;
733 case 2:
734 rootpoint = 0;
735 endpoint = FPGA_REG1C_PE2_ENDPOINT;
736 power = FPGA_REG1A_PE2_PWRON;
737 green_led = FPGA_REG1A_PE2_GLED;
738 clock = FPGA_REG1A_PE2_REFCLK_ENABLE;
739 yellow_led = FPGA_REG1A_PE2_YLED;
740 reset_off = FPGA_REG1C_PE2_PERST;
741 break;
742
743 default:
744 return;
745 }
746
747 out_be16((u16 *)FPGA_REG1A,
748 ~(power | clock | green_led) &
749 (yellow_led | in_be16((u16 *)FPGA_REG1A)));
750
751 out_be16((u16 *)FPGA_REG1C,
752 ~(endpoint | reset_off) &
753 (rootpoint | in_be16((u16 *)FPGA_REG1C)));
754 /*
755 * Leave device in reset for a while after powering on the
756 * slot to give it a chance to initialize.
757 */
758 udelay(250 * 1000);
759
760 out_be16((u16 *)FPGA_REG1C, reset_off | in_be16((u16 *)FPGA_REG1C));
761}
Stefan Roese2b393b02006-08-29 08:05:15 +0200762/*
763 * For the given slot, set endpoint mode, send power to the slot,
764 * turn on the green LED and turn off the yellow LED, enable the clock
765 * .In end point mode reset bit is read only.
766 */
767void yucca_setup_pcie_fpga_endpoint(int port)
768{
769 u16 power, clock, green_led, yellow_led, reset_off, rootpoint, endpoint;
770
771 switch(port) {
772 case 0:
773 rootpoint = FPGA_REG1C_PE0_ROOTPOINT;
774 endpoint = 0;
775 power = FPGA_REG1A_PE0_PWRON;
776 green_led = FPGA_REG1A_PE0_GLED;
777 clock = FPGA_REG1A_PE0_REFCLK_ENABLE;
778 yellow_led = FPGA_REG1A_PE0_YLED;
779 reset_off = FPGA_REG1C_PE0_PERST;
780 break;
781 case 1:
782 rootpoint = 0;
783 endpoint = FPGA_REG1C_PE1_ENDPOINT;
784 power = FPGA_REG1A_PE1_PWRON;
785 green_led = FPGA_REG1A_PE1_GLED;
786 clock = FPGA_REG1A_PE1_REFCLK_ENABLE;
787 yellow_led = FPGA_REG1A_PE1_YLED;
788 reset_off = FPGA_REG1C_PE1_PERST;
789 break;
790 case 2:
791 rootpoint = 0;
792 endpoint = FPGA_REG1C_PE2_ENDPOINT;
793 power = FPGA_REG1A_PE2_PWRON;
794 green_led = FPGA_REG1A_PE2_GLED;
795 clock = FPGA_REG1A_PE2_REFCLK_ENABLE;
796 yellow_led = FPGA_REG1A_PE2_YLED;
797 reset_off = FPGA_REG1C_PE2_PERST;
798 break;
799
800 default:
801 return;
802 }
803
804 out_be16((u16 *)FPGA_REG1A,
805 ~(power | clock | green_led) &
806 (yellow_led | in_be16((u16 *)FPGA_REG1A)));
807
808 out_be16((u16 *)FPGA_REG1C,
809 ~(rootpoint | reset_off) &
810 (endpoint | in_be16((u16 *)FPGA_REG1C)));
811}
812
Rafal Jaworowski692519b2006-08-10 12:43:17 +0200813static struct pci_controller pcie_hose[3] = {{0},{0},{0}};
814
815void pcie_setup_hoses(void)
816{
817 struct pci_controller *hose;
818 int i, bus;
819
820 /*
821 * assume we're called after the PCIX hose is initialized, which takes
822 * bus ID 0 and therefore start numbering PCIe's from 1.
823 */
824 bus = 1;
825 for (i = 0; i <= 2; i++) {
826 /* Check for yucca card presence */
827 if (!yucca_pcie_card_present(i))
828 continue;
829
Stefan Roese2b393b02006-08-29 08:05:15 +0200830#ifdef PCIE_ENDPOINT
831 yucca_setup_pcie_fpga_endpoint(i);
832 if (ppc440spe_init_pcie_endport(i)) {
833#else
Rafal Jaworowski692519b2006-08-10 12:43:17 +0200834 yucca_setup_pcie_fpga_rootpoint(i);
835 if (ppc440spe_init_pcie_rootport(i)) {
Stefan Roese2b393b02006-08-29 08:05:15 +0200836#endif
Rafal Jaworowski692519b2006-08-10 12:43:17 +0200837 printf("PCIE%d: initialization failed\n", i);
838 continue;
839 }
840
841 hose = &pcie_hose[i];
842 hose->first_busno = bus;
843 hose->last_busno = bus;
844 bus++;
845
846 /* setup mem resource */
847 pci_set_region(hose->regions + 0,
848 CFG_PCIE_MEMBASE + i * CFG_PCIE_MEMSIZE,
849 CFG_PCIE_MEMBASE + i * CFG_PCIE_MEMSIZE,
850 CFG_PCIE_MEMSIZE,
851 PCI_REGION_MEM
852 );
853 hose->region_count = 1;
854 pci_register_hose(hose);
855
Stefan Roese2b393b02006-08-29 08:05:15 +0200856#ifdef PCIE_ENDPOINT
857 ppc440spe_setup_pcie_endpoint(hose, i);
858 /*
859 * Reson for no scanning is endpoint can not generate
860 * upstream configuration accesses.
861 */
862#else
863 ppc440spe_setup_pcie_rootpoint(hose, i);
864 /*
865 * Config access can only go down stream
866 */
Rafal Jaworowski692519b2006-08-10 12:43:17 +0200867 hose->last_busno = pci_hose_scan(hose);
Stefan Roese2b393b02006-08-29 08:05:15 +0200868#endif
Rafal Jaworowski692519b2006-08-10 12:43:17 +0200869 }
870}
Marian Balakowicz6c5879f2006-06-30 16:30:46 +0200871#endif /* defined(CONFIG_PCI) */
872
873int misc_init_f (void)
874{
875 uint reg;
876#if defined(CONFIG_STRESS)
877 uint i ;
878 uint disp;
879#endif
880
881 out16(FPGA_REG10, (in16(FPGA_REG10) &
882 ~(FPGA_REG10_AUTO_NEG_DIS|FPGA_REG10_RESET_ETH)) |
883 FPGA_REG10_10MHZ_ENABLE |
884 FPGA_REG10_100MHZ_ENABLE |
885 FPGA_REG10_GIGABIT_ENABLE |
886 FPGA_REG10_FULL_DUPLEX );
887
888 udelay(10000); /* wait 10ms */
889
890 out16(FPGA_REG10, (in16(FPGA_REG10) | FPGA_REG10_RESET_ETH));
891
892 /* minimal init for PCIe */
893 /* pci express 0 Endpoint Mode */
894 mfsdr(SDR0_PE0DLPSET, reg);
895 reg &= (~0x00400000);
896 mtsdr(SDR0_PE0DLPSET, reg);
897 /* pci express 1 Rootpoint Mode */
898 mfsdr(SDR0_PE1DLPSET, reg);
899 reg |= 0x00400000;
900 mtsdr(SDR0_PE1DLPSET, reg);
901 /* pci express 2 Rootpoint Mode */
902 mfsdr(SDR0_PE2DLPSET, reg);
903 reg |= 0x00400000;
904 mtsdr(SDR0_PE2DLPSET, reg);
905
906 out16(FPGA_REG1C,(in16 (FPGA_REG1C) &
907 ~FPGA_REG1C_PE0_ROOTPOINT &
908 ~FPGA_REG1C_PE1_ENDPOINT &
909 ~FPGA_REG1C_PE2_ENDPOINT));
910
911#if defined(CONFIG_STRESS)
912 /*
913 * all this setting done by linux only needed by stress an charac. test
914 * procedure
915 * PCIe 1 Rootpoint PCIe2 Endpoint
916 * PCIe 0 FIR Pre-emphasis Filter Coefficients & Transmit Driver
917 * Power Level
918 */
919 for (i = 0, disp = 0; i < 8; i++, disp += 3) {
920 mfsdr(SDR0_PE0HSSSET1L0 + disp, reg);
921 reg |= 0x33000000;
922 mtsdr(SDR0_PE0HSSSET1L0 + disp, reg);
923 }
924
925 /*
926 * PCIe 1 FIR Pre-emphasis Filter Coefficients & Transmit Driver
927 * Power Level
928 */
929 for (i = 0, disp = 0; i < 4; i++, disp += 3) {
930 mfsdr(SDR0_PE1HSSSET1L0 + disp, reg);
931 reg |= 0x33000000;
932 mtsdr(SDR0_PE1HSSSET1L0 + disp, reg);
933 }
934
935 /*
936 * PCIE 2 FIR Pre-emphasis Filter Coefficients & Transmit Driver
937 * Power Level
938 */
939 for (i = 0, disp = 0; i < 4; i++, disp += 3) {
940 mfsdr(SDR0_PE2HSSSET1L0 + disp, reg);
941 reg |= 0x33000000;
942 mtsdr(SDR0_PE2HSSSET1L0 + disp, reg);
943 }
944
945 reg = 0x21242222;
946 mtsdr(SDR0_PE2UTLSET1, reg);
947 reg = 0x11000000;
948 mtsdr(SDR0_PE2UTLSET2, reg);
949 /* pci express 1 Endpoint Mode */
950 reg = 0x00004000;
951 mtsdr(SDR0_PE2DLPSET, reg);
952
953 mtsdr(SDR0_UART1, 0x2080005a); /* patch for TG */
954#endif
955 return 0;
956}
957
958void fpga_init(void)
959{
960 /*
961 * by default sdram access is disabled by fpga
962 */
963 out16(FPGA_REG10, (in16 (FPGA_REG10) |
964 FPGA_REG10_SDRAM_ENABLE |
965 FPGA_REG10_ENABLE_DISPLAY ));
966
967 return;
968}
969
970#ifdef CONFIG_POST
971/*
972 * Returns 1 if keys pressed to start the power-on long-running tests
973 * Called from board_init_f().
974 */
975int post_hotkeys_pressed(void)
976{
977 return (ctrlc());
978}
979#endif
980
981/*---------------------------------------------------------------------------+
982 | onboard_pci_arbiter_selected => from EPLD
983 +---------------------------------------------------------------------------*/
984int onboard_pci_arbiter_selected(int core_pci)
985{
986#if 0
987 unsigned long onboard_pci_arbiter_sel;
988
989 onboard_pci_arbiter_sel = in16(FPGA_REG0) & FPGA_REG0_EXT_ARB_SEL_MASK;
990
991 if (onboard_pci_arbiter_sel == FPGA_REG0_EXT_ARB_SEL_EXTERNAL)
992 return (BOARD_OPTION_SELECTED);
993 else
994#endif
995 return (BOARD_OPTION_NOT_SELECTED);
996}