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85xx: Add P2020DS support
[karo-tx-uboot.git] / board / freescale / p2020ds / p2020ds.c
1 /*
2  * Copyright 2007-2009 Freescale Semiconductor, Inc.
3  *
4  * See file CREDITS for list of people who contributed to this
5  * project.
6  *
7  * This program is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU General Public License as
9  * published by the Free Software Foundation; either version 2 of
10  * the License, or (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
20  * MA 02111-1307 USA
21  */
22
23 #include <common.h>
24 #include <command.h>
25 #include <pci.h>
26 #include <asm/processor.h>
27 #include <asm/mmu.h>
28 #include <asm/cache.h>
29 #include <asm/immap_85xx.h>
30 #include <asm/fsl_pci.h>
31 #include <asm/fsl_ddr_sdram.h>
32 #include <asm/io.h>
33 #include <miiphy.h>
34 #include <libfdt.h>
35 #include <fdt_support.h>
36 #include <tsec.h>
37 #include <asm/fsl_law.h>
38 #include <asm/mp.h>
39
40 #include "../common/pixis.h"
41 #include "../common/sgmii_riser.h"
42
43 DECLARE_GLOBAL_DATA_PTR;
44
45 phys_size_t fixed_sdram(void);
46
47 int checkboard(void)
48 {
49         puts("Board: P2020DS ");
50 #ifdef CONFIG_PHYS_64BIT
51         puts("(36-bit addrmap) ");
52 #endif
53         printf("Sys ID: 0x%02x, "
54                 "Sys Ver: 0x%02x, FPGA Ver: 0x%02x\n",
55                 in8(PIXIS_BASE + PIXIS_ID), in8(PIXIS_BASE + PIXIS_VER),
56                 in8(PIXIS_BASE + PIXIS_PVER));
57         return 0;
58 }
59
60 phys_size_t initdram(int board_type)
61 {
62         phys_size_t dram_size = 0;
63
64         puts("Initializing....");
65
66 #ifdef CONFIG_SPD_EEPROM
67         dram_size = fsl_ddr_sdram();
68 #else
69         dram_size = fixed_sdram();
70
71         if (set_ddr_laws(CONFIG_SYS_DDR_SDRAM_BASE,
72                          dram_size,
73                          LAW_TRGT_IF_DDR) < 0) {
74                 printf("ERROR setting Local Access Windows for DDR\n");
75                 return 0;
76         };
77 #endif
78         dram_size = setup_ddr_tlbs(dram_size / 0x100000);
79         dram_size *= 0x100000;
80
81         puts("    DDR: ");
82         return dram_size;
83 }
84
85 #if !defined(CONFIG_SPD_EEPROM)
86 /*
87  * Fixed sdram init -- doesn't use serial presence detect.
88  */
89
90 phys_size_t fixed_sdram(void)
91 {
92         volatile ccsr_ddr_t *ddr = (ccsr_ddr_t *)CONFIG_SYS_MPC85xx_DDR_ADDR;
93         uint d_init;
94
95         ddr->cs0_config = CONFIG_SYS_DDR_CS0_CONFIG;
96         ddr->timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3;
97         ddr->timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0;
98         ddr->sdram_mode = CONFIG_SYS_DDR_MODE_1;
99         ddr->sdram_mode_2 = CONFIG_SYS_DDR_MODE_2;
100         ddr->sdram_md_cntl = CONFIG_SYS_DDR_MODE_CTRL;
101         ddr->sdram_interval = CONFIG_SYS_DDR_INTERVAL;
102         ddr->sdram_data_init = CONFIG_SYS_DDR_DATA_INIT;
103         ddr->sdram_clk_cntl = CONFIG_SYS_DDR_CLK_CTRL;
104         ddr->sdram_cfg_2 = CONFIG_SYS_DDR_CONTROL2;
105         ddr->ddr_zq_cntl = CONFIG_SYS_DDR_ZQ_CNTL;
106         ddr->ddr_wrlvl_cntl = CONFIG_SYS_DDR_WRLVL_CNTL;
107         ddr->ddr_cdr1 = CONFIG_SYS_DDR_CDR1;
108         ddr->timing_cfg_4 = CONFIG_SYS_DDR_TIMING_4;
109         ddr->timing_cfg_5 = CONFIG_SYS_DDR_TIMING_5;
110
111         if (!strcmp("performance", getenv("perf_mode"))) {
112                 /* Performance Mode Values */
113
114                 ddr->cs1_config = CONFIG_SYS_DDR_CS1_CONFIG_PERF;
115                 ddr->cs0_bnds = CONFIG_SYS_DDR_CS0_BNDS_PERF;
116                 ddr->cs1_bnds = CONFIG_SYS_DDR_CS1_BNDS_PERF;
117                 ddr->timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1_PERF;
118                 ddr->timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2_PERF;
119
120                 asm("sync;isync");
121
122                 udelay(500);
123
124                 ddr->sdram_cfg = CONFIG_SYS_DDR_CONTROL_PERF;
125         } else {
126                 /* Stable Mode Values */
127
128                 ddr->cs1_config = CONFIG_SYS_DDR_CS1_CONFIG;
129                 ddr->cs0_bnds = CONFIG_SYS_DDR_CS0_BNDS;
130                 ddr->cs1_bnds = CONFIG_SYS_DDR_CS1_BNDS;
131                 ddr->timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1;
132                 ddr->timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2;
133
134                 /* ECC will be assumed in stable mode */
135                 ddr->err_int_en = CONFIG_SYS_DDR_ERR_INT_EN;
136                 ddr->err_disable = CONFIG_SYS_DDR_ERR_DIS;
137                 ddr->err_sbe = CONFIG_SYS_DDR_SBE;
138
139                 asm("sync;isync");
140
141                 udelay(500);
142
143                 ddr->sdram_cfg = CONFIG_SYS_DDR_CONTROL;
144         }
145
146 #if defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
147         d_init = 1;
148         debug("DDR - 1st controller: memory initializing\n");
149         /*
150          * Poll until memory is initialized.
151          * 512 Meg at 400 might hit this 200 times or so.
152          */
153         while ((ddr->sdram_cfg_2 & (d_init << 4)) != 0)
154                 udelay(1000);
155         debug("DDR: memory initialized\n\n");
156         asm("sync; isync");
157         udelay(500);
158 #endif
159
160         return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
161 }
162
163 #endif
164
165 #ifdef CONFIG_PCIE1
166 static struct pci_controller pcie1_hose;
167 #endif
168
169 #ifdef CONFIG_PCIE2
170 static struct pci_controller pcie2_hose;
171 #endif
172
173 #ifdef CONFIG_PCIE3
174 static struct pci_controller pcie3_hose;
175 #endif
176
177 int first_free_busno = 0;
178
179 #ifdef CONFIG_PCI
180 void pci_init_board(void)
181 {
182         volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
183         uint devdisr = gur->devdisr;
184         uint io_sel = (gur->pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 19;
185         uint host_agent = (gur->porbmsr & MPC85xx_PORBMSR_HA) >> 16;
186
187         volatile ccsr_fsl_pci_t *pci;
188         struct pci_controller *hose;
189         int pcie_ep, pcie_configured;
190         struct pci_region *r;
191 /*              u32 temp32; */
192
193         debug("   pci_init_board: devdisr=%x, io_sel=%x, host_agent=%x\n",
194                         devdisr, io_sel, host_agent);
195
196         if (!(gur->pordevsr & MPC85xx_PORDEVSR_SGMII2_DIS))
197                 printf("    eTSEC2 is in sgmii mode.\n");
198         if (!(gur->pordevsr & MPC85xx_PORDEVSR_SGMII3_DIS))
199                 printf("    eTSEC3 is in sgmii mode.\n");
200
201 #ifdef CONFIG_PCIE2
202         pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE2_ADDR;
203         hose = &pcie2_hose;
204         pcie_ep = (host_agent == 2) || (host_agent == 4) ||
205                   (host_agent == 6) || (host_agent == 0);
206         pcie_configured = (io_sel == 0x2) || (io_sel == 0xe);
207         r = hose->regions;
208
209         if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE2)) {
210                 printf("\n    PCIE2 connected to ULI as %s (base addr %x)",
211                                 pcie_ep ? "End Point" : "Root Complex",
212                                 (uint)pci);
213                 if (pci->pme_msg_det) {
214                         pci->pme_msg_det = 0xffffffff;
215                         debug(" with errors.  Clearing.  Now 0x%08x",
216                                 pci->pme_msg_det);
217                 }
218                 printf("\n");
219
220                 /* inbound */
221                 r += fsl_pci_setup_inbound_windows(r);
222
223                 /* outbound memory */
224                 pci_set_region(r++,
225                                 CONFIG_SYS_PCIE2_MEM_BUS,
226                                 CONFIG_SYS_PCIE2_MEM_PHYS,
227                                 CONFIG_SYS_PCIE2_MEM_SIZE,
228                                 PCI_REGION_MEM);
229
230                 /* outbound io */
231                 pci_set_region(r++,
232                                 CONFIG_SYS_PCIE2_IO_BUS,
233                                 CONFIG_SYS_PCIE2_IO_PHYS,
234                                 CONFIG_SYS_PCIE2_IO_SIZE,
235                                 PCI_REGION_IO);
236
237                 hose->region_count = r - hose->regions;
238                 hose->first_busno = first_free_busno;
239                 pci_setup_indirect(hose, (int)&pci->cfg_addr,
240                                   (int)&pci->cfg_data);
241
242                 fsl_pci_init(hose);
243                 first_free_busno = hose->last_busno+1;
244                 printf("    PCIE2 on bus %02x - %02x\n",
245                         hose->first_busno, hose->last_busno);
246
247                 /*
248                  * The workaround doesn't work on p2020 because the location
249                  * we try and read isn't valid on p2020, fix this later
250                  */
251 #if 0
252                 /*
253                  * Activate ULI1575 legacy chip by performing a fake
254                  * memory access.  Needed to make ULI RTC work.
255                  * Device 1d has the first on-board memory BAR.
256                  */
257
258                 pci_hose_read_config_dword(hose, PCI_BDF(2, 0x1d, 0),
259                                 PCI_BASE_ADDRESS_1, &temp32);
260                 if (temp32 >= CONFIG_SYS_PCIE3_MEM_BUS) {
261                         void *p = pci_mem_to_virt(PCI_BDF(2, 0x1d, 0),
262                                                         temp32, 4, 0);
263                         debug(" uli1575 read to %p\n", p);
264                         in_be32(p);
265                 }
266 #endif
267         } else {
268                 printf("    PCIE2: disabled\n");
269         }
270 #else
271         gur->devdisr |= MPC85xx_DEVDISR_PCIE2; /* disable */
272 #endif
273
274 #ifdef CONFIG_PCIE3
275         pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE3_ADDR;
276         hose = &pcie3_hose;
277         pcie_ep = (host_agent == 0) || (host_agent == 3) ||
278                 (host_agent == 5) || (host_agent == 6);
279         pcie_configured = (io_sel == 0x2) || (io_sel == 0x4);
280         r = hose->regions;
281
282         if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE3)) {
283                 printf("\n    PCIE3 connected to Slot 1 as %s (base addr %x)",
284                                 pcie_ep ? "End Point" : "Root Complex",
285                                 (uint)pci);
286                 if (pci->pme_msg_det) {
287                         pci->pme_msg_det = 0xffffffff;
288                         debug(" with errors.  Clearing.  Now 0x%08x",
289                                 pci->pme_msg_det);
290                 }
291                 printf("\n");
292
293                 /* inbound */
294                 r += fsl_pci_setup_inbound_windows(r);
295
296                 /* outbound memory */
297                 pci_set_region(r++,
298                                 CONFIG_SYS_PCIE3_MEM_BUS,
299                                 CONFIG_SYS_PCIE3_MEM_PHYS,
300                                 CONFIG_SYS_PCIE3_MEM_SIZE,
301                                 PCI_REGION_MEM);
302
303                 /* outbound io */
304                 pci_set_region(r++,
305                                 CONFIG_SYS_PCIE3_IO_BUS,
306                                 CONFIG_SYS_PCIE3_IO_PHYS,
307                                 CONFIG_SYS_PCIE3_IO_SIZE,
308                                 PCI_REGION_IO);
309
310                 hose->region_count = r - hose->regions;
311                 hose->first_busno = first_free_busno;
312                 pci_setup_indirect(hose, (int)&pci->cfg_addr,
313                                   (int)&pci->cfg_data);
314
315                 fsl_pci_init(hose);
316
317                 first_free_busno = hose->last_busno+1;
318                 printf("    PCIE3 on bus %02x - %02x\n",
319                                 hose->first_busno, hose->last_busno);
320
321         } else {
322                 printf("    PCIE3: disabled\n");
323         }
324 #else
325         gur->devdisr |= MPC85xx_DEVDISR_PCIE3; /* disable */
326 #endif
327
328 #ifdef CONFIG_PCIE1
329         pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE1_ADDR;
330         hose = &pcie1_hose;
331         pcie_ep = (host_agent <= 1) || (host_agent == 4) || (host_agent == 5);
332         pcie_configured  = (io_sel & 6) || (io_sel == 0xE) || (io_sel == 0xF);
333         r = hose->regions;
334
335         if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)) {
336                 printf("\n    PCIE1 connected to Slot 2 as %s (base addr %x)",
337                                 pcie_ep ? "End Point" : "Root Complex",
338                                 (uint)pci);
339                 if (pci->pme_msg_det) {
340                         pci->pme_msg_det = 0xffffffff;
341                         debug(" with errors.  Clearing.  Now 0x%08x",
342                                 pci->pme_msg_det);
343                 }
344                 printf("\n");
345
346                 /* inbound */
347                 r += fsl_pci_setup_inbound_windows(r);
348
349                 /* outbound memory */
350                 pci_set_region(r++,
351                                 CONFIG_SYS_PCIE1_MEM_BUS,
352                                 CONFIG_SYS_PCIE1_MEM_PHYS,
353                                 CONFIG_SYS_PCIE1_MEM_SIZE,
354                                 PCI_REGION_MEM);
355
356                 /* outbound io */
357                 pci_set_region(r++,
358                                 CONFIG_SYS_PCIE1_IO_BUS,
359                                 CONFIG_SYS_PCIE1_IO_PHYS,
360                                 CONFIG_SYS_PCIE1_IO_SIZE,
361                                 PCI_REGION_IO);
362
363                 hose->region_count = r - hose->regions;
364                 hose->first_busno = first_free_busno;
365
366                 pci_setup_indirect(hose, (int)&pci->cfg_addr,
367                                   (int)&pci->cfg_data);
368
369                 fsl_pci_init(hose);
370
371                 first_free_busno = hose->last_busno+1;
372                 printf("    PCIE1 on bus %02x - %02x\n",
373                         hose->first_busno, hose->last_busno);
374
375         } else {
376                 printf("    PCIE1: disabled\n");
377         }
378 #else
379         gur->devdisr |= MPC85xx_DEVDISR_PCIE; /* disable */
380 #endif
381 }
382 #endif
383
384 int board_early_init_r(void)
385 {
386         const unsigned int flashbase = CONFIG_SYS_FLASH_BASE;
387         const u8 flash_esel = 2;
388
389         /*
390          * Remap Boot flash + PROMJET region to caching-inhibited
391          * so that flash can be erased properly.
392          */
393
394         /* Flush d-cache and invalidate i-cache of any FLASH data */
395         flush_dcache();
396         invalidate_icache();
397
398         /* invalidate existing TLB entry for flash + promjet */
399         disable_tlb(flash_esel);
400
401         set_tlb(1, flashbase, CONFIG_SYS_FLASH_BASE_PHYS,
402                         MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
403                         0, flash_esel, BOOKE_PAGESZ_256M, 1);
404
405         return 0;
406 }
407
408 #ifdef CONFIG_GET_CLK_FROM_ICS307
409 /* decode S[0-2] to Output Divider (OD) */
410 static unsigned char ics307_S_to_OD[] = {
411         10, 2, 8, 4, 5, 7, 3, 6
412 };
413
414 /* Calculate frequency being generated by ICS307-02 clock chip based upon
415  * the control bytes being programmed into it. */
416 /* XXX: This function should probably go into a common library */
417 static unsigned long
418 ics307_clk_freq(unsigned char cw0, unsigned char cw1, unsigned char cw2)
419 {
420         const unsigned long InputFrequency = CONFIG_ICS307_REFCLK_HZ;
421         unsigned long VDW = ((cw1 << 1) & 0x1FE) + ((cw2 >> 7) & 1);
422         unsigned long RDW = cw2 & 0x7F;
423         unsigned long OD = ics307_S_to_OD[cw0 & 0x7];
424         unsigned long freq;
425
426         /* CLK1Frequency = InputFrequency * 2 * (VDW + 8) / ((RDW + 2) * OD) */
427
428         /* cw0:  C1 C0 TTL F1 F0 S2 S1 S0
429          * cw1:  V8 V7 V6 V5 V4 V3 V2 V1
430          * cw2:  V0 R6 R5 R4 R3 R2 R1 R0
431          *
432          * R6:R0 = Reference Divider Word (RDW)
433          * V8:V0 = VCO Divider Word (VDW)
434          * S2:S0 = Output Divider Select (OD)
435          * F1:F0 = Function of CLK2 Output
436          * TTL = duty cycle
437          * C1:C0 = internal load capacitance for cyrstal
438          */
439
440         /* Adding 1 to get a "nicely" rounded number, but this needs
441          * more tweaking to get a "properly" rounded number. */
442
443         freq = 1 + (InputFrequency * 2 * (VDW + 8) / ((RDW + 2) * OD));
444
445         debug("ICS307: CW[0-2]: %02X %02X %02X => %lu Hz\n", cw0, cw1, cw2,
446                         freq);
447         return freq;
448 }
449
450 unsigned long get_board_sys_clk(ulong dummy)
451 {
452         return gd->bus_clk;
453 }
454
455 unsigned long get_board_ddr_clk(ulong dummy)
456 {
457         return gd->mem_clk;
458 }
459
460 unsigned long
461 calculate_board_sys_clk(ulong dummy)
462 {
463         ulong val;
464         val = ics307_clk_freq(
465             in8(PIXIS_BASE + PIXIS_VSYSCLK0),
466             in8(PIXIS_BASE + PIXIS_VSYSCLK1),
467             in8(PIXIS_BASE + PIXIS_VSYSCLK2));
468         debug("sysclk val = %lu\n", val);
469         return val;
470 }
471
472 unsigned long
473 calculate_board_ddr_clk(ulong dummy)
474 {
475         ulong val;
476         val = ics307_clk_freq(
477             in8(PIXIS_BASE + PIXIS_VDDRCLK0),
478             in8(PIXIS_BASE + PIXIS_VDDRCLK1),
479             in8(PIXIS_BASE + PIXIS_VDDRCLK2));
480         debug("ddrclk val = %lu\n", val);
481         return val;
482 }
483 #else
484 unsigned long get_board_sys_clk(ulong dummy)
485 {
486         u8 i;
487         ulong val = 0;
488
489         i = in8(PIXIS_BASE + PIXIS_SPD);
490         i &= 0x07;
491
492         switch (i) {
493                 case 0:
494                         val = 33333333;
495                         break;
496                 case 1:
497                         val = 40000000;
498                         break;
499                 case 2:
500                         val = 50000000;
501                         break;
502                 case 3:
503                         val = 66666666;
504                         break;
505                 case 4:
506                         val = 83333333;
507                         break;
508                 case 5:
509                         val = 100000000;
510                         break;
511                 case 6:
512                         val = 133333333;
513                         break;
514                 case 7:
515                         val = 166666666;
516                         break;
517         }
518
519         return val;
520 }
521
522 unsigned long get_board_ddr_clk(ulong dummy)
523 {
524         u8 i;
525         ulong val = 0;
526
527         i = in8(PIXIS_BASE + PIXIS_SPD);
528         i &= 0x38;
529         i >>= 3;
530
531         switch (i) {
532                 case 0:
533                         val = 33333333;
534                         break;
535                 case 1:
536                         val = 40000000;
537                         break;
538                 case 2:
539                         val = 50000000;
540                         break;
541                 case 3:
542                         val = 66666666;
543                         break;
544                 case 4:
545                         val = 83333333;
546                         break;
547                 case 5:
548                         val = 100000000;
549                         break;
550                 case 6:
551                         val = 133333333;
552                         break;
553                 case 7:
554                         val = 166666666;
555                         break;
556         }
557         return val;
558 }
559 #endif
560
561 #ifdef CONFIG_TSEC_ENET
562 int board_eth_init(bd_t *bis)
563 {
564         struct tsec_info_struct tsec_info[4];
565         volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
566         int num = 0;
567
568 #ifdef CONFIG_TSEC1
569         SET_STD_TSEC_INFO(tsec_info[num], 1);
570         num++;
571 #endif
572 #ifdef CONFIG_TSEC2
573         SET_STD_TSEC_INFO(tsec_info[num], 2);
574         if (!(gur->pordevsr & MPC85xx_PORDEVSR_SGMII2_DIS))
575                 tsec_info[num].flags |= TSEC_SGMII;
576         num++;
577 #endif
578 #ifdef CONFIG_TSEC3
579         SET_STD_TSEC_INFO(tsec_info[num], 3);
580         if (!(gur->pordevsr & MPC85xx_PORDEVSR_SGMII3_DIS))
581                 tsec_info[num].flags |= TSEC_SGMII;
582         num++;
583 #endif
584
585         if (!num) {
586                 printf("No TSECs initialized\n");
587
588                 return 0;
589         }
590
591 #ifdef CONFIG_FSL_SGMII_RISER
592         fsl_sgmii_riser_init(tsec_info, num);
593 #endif
594
595         tsec_eth_init(bis, tsec_info, num);
596
597         return 0;
598 }
599 #endif
600
601 #if defined(CONFIG_OF_BOARD_SETUP)
602 void ft_board_setup(void *blob, bd_t *bd)
603 {
604         phys_addr_t base;
605         phys_size_t size;
606
607         ft_cpu_setup(blob, bd);
608
609         base = getenv_bootm_low();
610         size = getenv_bootm_size();
611
612         fdt_fixup_memory(blob, (u64)base, (u64)size);
613
614 #ifdef CONFIG_PCIE3
615         ft_fsl_pci_setup(blob, "pci0", &pcie3_hose);
616 #endif
617 #ifdef CONFIG_PCIE2
618         ft_fsl_pci_setup(blob, "pci1", &pcie2_hose);
619 #endif
620 #ifdef CONFIG_PCIE1
621         ft_fsl_pci_setup(blob, "pci2", &pcie1_hose);
622 #endif
623 #ifdef CONFIG_FSL_SGMII_RISER
624         fsl_sgmii_riser_fdt_fixup(blob);
625 #endif
626 }
627 #endif
628
629 #ifdef CONFIG_MP
630 void board_lmb_reserve(struct lmb *lmb)
631 {
632         cpu_mp_lmb_reserve(lmb);
633 }
634 #endif