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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 #include <netdev.h>
40
41 #include "../common/ngpixis.h"
42 #include "../common/sgmii_riser.h"
43
44 DECLARE_GLOBAL_DATA_PTR;
45
46 phys_size_t fixed_sdram(void);
47
48 int checkboard(void)
49 {
50         u8 sw;
51
52         puts("Board: P2020DS ");
53 #ifdef CONFIG_PHYS_64BIT
54         puts("(36-bit addrmap) ");
55 #endif
56
57         printf("Sys ID: 0x%02x, Sys Ver: 0x%02x, FPGA Ver: 0x%02x, ",
58                 in_8(&pixis->id), in_8(&pixis->arch), in_8(&pixis->scver));
59
60         sw = in_8(&PIXIS_SW(PIXIS_LBMAP_SWITCH));
61         sw = (sw & PIXIS_LBMAP_MASK) >> PIXIS_LBMAP_SHIFT;
62
63         if (sw < 0x8)
64                 /* The lower two bits are the actual vbank number */
65                 printf("vBank: %d\n", sw & 3);
66         else
67                 puts("Promjet\n");
68
69         return 0;
70 }
71
72 phys_size_t initdram(int board_type)
73 {
74         phys_size_t dram_size = 0;
75
76         puts("Initializing....");
77
78 #ifdef CONFIG_SPD_EEPROM
79         dram_size = fsl_ddr_sdram();
80 #else
81         dram_size = fixed_sdram();
82
83         if (set_ddr_laws(CONFIG_SYS_DDR_SDRAM_BASE,
84                          dram_size,
85                          LAW_TRGT_IF_DDR) < 0) {
86                 printf("ERROR setting Local Access Windows for DDR\n");
87                 return 0;
88         };
89 #endif
90         dram_size = setup_ddr_tlbs(dram_size / 0x100000);
91         dram_size *= 0x100000;
92
93         puts("    DDR: ");
94         return dram_size;
95 }
96
97 #if !defined(CONFIG_SPD_EEPROM)
98 /*
99  * Fixed sdram init -- doesn't use serial presence detect.
100  */
101
102 phys_size_t fixed_sdram(void)
103 {
104         volatile ccsr_ddr_t *ddr = (ccsr_ddr_t *)CONFIG_SYS_MPC85xx_DDR_ADDR;
105         uint d_init;
106
107         ddr->cs0_config = CONFIG_SYS_DDR_CS0_CONFIG;
108         ddr->timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3;
109         ddr->timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0;
110         ddr->sdram_mode = CONFIG_SYS_DDR_MODE_1;
111         ddr->sdram_mode_2 = CONFIG_SYS_DDR_MODE_2;
112         ddr->sdram_md_cntl = CONFIG_SYS_DDR_MODE_CTRL;
113         ddr->sdram_interval = CONFIG_SYS_DDR_INTERVAL;
114         ddr->sdram_data_init = CONFIG_SYS_DDR_DATA_INIT;
115         ddr->sdram_clk_cntl = CONFIG_SYS_DDR_CLK_CTRL;
116         ddr->sdram_cfg_2 = CONFIG_SYS_DDR_CONTROL2;
117         ddr->ddr_zq_cntl = CONFIG_SYS_DDR_ZQ_CNTL;
118         ddr->ddr_wrlvl_cntl = CONFIG_SYS_DDR_WRLVL_CNTL;
119         ddr->ddr_cdr1 = CONFIG_SYS_DDR_CDR1;
120         ddr->timing_cfg_4 = CONFIG_SYS_DDR_TIMING_4;
121         ddr->timing_cfg_5 = CONFIG_SYS_DDR_TIMING_5;
122
123         if (!strcmp("performance", getenv("perf_mode"))) {
124                 /* Performance Mode Values */
125
126                 ddr->cs1_config = CONFIG_SYS_DDR_CS1_CONFIG_PERF;
127                 ddr->cs0_bnds = CONFIG_SYS_DDR_CS0_BNDS_PERF;
128                 ddr->cs1_bnds = CONFIG_SYS_DDR_CS1_BNDS_PERF;
129                 ddr->timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1_PERF;
130                 ddr->timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2_PERF;
131
132                 asm("sync;isync");
133
134                 udelay(500);
135
136                 ddr->sdram_cfg = CONFIG_SYS_DDR_CONTROL_PERF;
137         } else {
138                 /* Stable Mode Values */
139
140                 ddr->cs1_config = CONFIG_SYS_DDR_CS1_CONFIG;
141                 ddr->cs0_bnds = CONFIG_SYS_DDR_CS0_BNDS;
142                 ddr->cs1_bnds = CONFIG_SYS_DDR_CS1_BNDS;
143                 ddr->timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1;
144                 ddr->timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2;
145
146                 /* ECC will be assumed in stable mode */
147                 ddr->err_int_en = CONFIG_SYS_DDR_ERR_INT_EN;
148                 ddr->err_disable = CONFIG_SYS_DDR_ERR_DIS;
149                 ddr->err_sbe = CONFIG_SYS_DDR_SBE;
150
151                 asm("sync;isync");
152
153                 udelay(500);
154
155                 ddr->sdram_cfg = CONFIG_SYS_DDR_CONTROL;
156         }
157
158 #if defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
159         d_init = 1;
160         debug("DDR - 1st controller: memory initializing\n");
161         /*
162          * Poll until memory is initialized.
163          * 512 Meg at 400 might hit this 200 times or so.
164          */
165         while ((ddr->sdram_cfg_2 & (d_init << 4)) != 0)
166                 udelay(1000);
167         debug("DDR: memory initialized\n\n");
168         asm("sync; isync");
169         udelay(500);
170 #endif
171
172         return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
173 }
174
175 #endif
176
177 #ifdef CONFIG_PCIE1
178 static struct pci_controller pcie1_hose;
179 #endif
180
181 #ifdef CONFIG_PCIE2
182 static struct pci_controller pcie2_hose;
183 #endif
184
185 #ifdef CONFIG_PCIE3
186 static struct pci_controller pcie3_hose;
187 #endif
188
189 #ifdef CONFIG_PCI
190 void pci_init_board(void)
191 {
192         volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
193         struct fsl_pci_info pci_info[3];
194         u32 devdisr, pordevsr, io_sel;
195         int first_free_busno = 0;
196         int num = 0;
197
198         int pcie_ep, pcie_configured;
199
200         devdisr = in_be32(&gur->devdisr);
201         pordevsr = in_be32(&gur->pordevsr);
202         io_sel = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 19;
203
204         debug ("   pci_init_board: devdisr=%x, io_sel=%x\n", devdisr, io_sel);
205
206         if (!(pordevsr & MPC85xx_PORDEVSR_SGMII2_DIS))
207                 printf("    eTSEC2 is in sgmii mode.\n");
208         if (!(pordevsr & MPC85xx_PORDEVSR_SGMII3_DIS))
209                 printf("    eTSEC3 is in sgmii mode.\n");
210
211         puts("\n");
212 #ifdef CONFIG_PCIE2
213         pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_2, io_sel);
214
215         if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE2)) {
216                 SET_STD_PCIE_INFO(pci_info[num], 2);
217                 pcie_ep = fsl_setup_hose(&pcie2_hose, pci_info[num].regs);
218                 printf("    PCIE2 connected to ULI as %s (base addr %lx)\n",
219                                 pcie_ep ? "Endpoint" : "Root Complex",
220                                 pci_info[num].regs);
221                 first_free_busno = fsl_pci_init_port(&pci_info[num++],
222                                         &pcie2_hose, first_free_busno);
223
224                 /*
225                  * The workaround doesn't work on p2020 because the location
226                  * we try and read isn't valid on p2020, fix this later
227                  */
228 #if 0
229                 /*
230                  * Activate ULI1575 legacy chip by performing a fake
231                  * memory access.  Needed to make ULI RTC work.
232                  * Device 1d has the first on-board memory BAR.
233                  */
234
235                 pci_hose_read_config_dword(hose, PCI_BDF(2, 0x1d, 0),
236                                 PCI_BASE_ADDRESS_1, &temp32);
237                 if (temp32 >= CONFIG_SYS_PCIE3_MEM_BUS) {
238                         void *p = pci_mem_to_virt(PCI_BDF(2, 0x1d, 0),
239                                                         temp32, 4, 0);
240                         debug(" uli1575 read to %p\n", p);
241                         in_be32(p);
242                 }
243 #endif
244         } else {
245                 printf("    PCIE2: disabled\n");
246         }
247         puts("\n");
248 #else
249         setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCIE2); /* disable */
250 #endif
251
252 #ifdef CONFIG_PCIE3
253         pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_3, io_sel);
254
255         if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE3)) {
256                 SET_STD_PCIE_INFO(pci_info[num], 3);
257                 pcie_ep = fsl_setup_hose(&pcie3_hose, pci_info[num].regs);
258                 printf("    PCIE3 connected to Slot 1 as %s (base addr %lx)\n",
259                                 pcie_ep ? "Endpoint" : "Root Complex",
260                                 pci_info[num].regs);
261                 first_free_busno = fsl_pci_init_port(&pci_info[num++],
262                                         &pcie3_hose, first_free_busno);
263         } else {
264                 printf("    PCIE3: disabled\n");
265         }
266         puts("\n");
267 #else
268         setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCIE3); /* disable */
269 #endif
270
271 #ifdef CONFIG_PCIE1
272         pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
273
274         if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)) {
275                 SET_STD_PCIE_INFO(pci_info[num], 1);
276                 pcie_ep = fsl_setup_hose(&pcie1_hose, pci_info[num].regs);
277                 printf("    PCIE1 connected to Slot 2 as %s (base addr %lx)\n",
278                                 pcie_ep ? "Endpoint" : "Root Complex",
279                                 pci_info[num].regs);
280                 first_free_busno = fsl_pci_init_port(&pci_info[num++],
281                                         &pcie1_hose, first_free_busno);
282         } else {
283                 printf("    PCIE1: disabled\n");
284         }
285         puts("\n");
286 #else
287         setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCIE); /* disable */
288 #endif
289 }
290 #endif
291
292 int board_early_init_r(void)
293 {
294         const unsigned int flashbase = CONFIG_SYS_FLASH_BASE;
295         const u8 flash_esel = find_tlb_idx((void *)flashbase, 1);
296
297         /*
298          * Remap Boot flash + PROMJET region to caching-inhibited
299          * so that flash can be erased properly.
300          */
301
302         /* Flush d-cache and invalidate i-cache of any FLASH data */
303         flush_dcache();
304         invalidate_icache();
305
306         /* invalidate existing TLB entry for flash + promjet */
307         disable_tlb(flash_esel);
308
309         set_tlb(1, flashbase, CONFIG_SYS_FLASH_BASE_PHYS,
310                         MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
311                         0, flash_esel, BOOKE_PAGESZ_256M, 1);
312
313         return 0;
314 }
315
316 #ifdef CONFIG_GET_CLK_FROM_ICS307
317 /* decode S[0-2] to Output Divider (OD) */
318 static unsigned char ics307_S_to_OD[] = {
319         10, 2, 8, 4, 5, 7, 3, 6
320 };
321
322 /* Calculate frequency being generated by ICS307-02 clock chip based upon
323  * the control bytes being programmed into it. */
324 /* XXX: This function should probably go into a common library */
325 static unsigned long
326 ics307_clk_freq(unsigned char cw0, unsigned char cw1, unsigned char cw2)
327 {
328         const unsigned long InputFrequency = CONFIG_ICS307_REFCLK_HZ;
329         unsigned long VDW = ((cw1 << 1) & 0x1FE) + ((cw2 >> 7) & 1);
330         unsigned long RDW = cw2 & 0x7F;
331         unsigned long OD = ics307_S_to_OD[cw0 & 0x7];
332         unsigned long freq;
333
334         /* CLK1Frequency = InputFrequency * 2 * (VDW + 8) / ((RDW + 2) * OD) */
335
336         /* cw0:  C1 C0 TTL F1 F0 S2 S1 S0
337          * cw1:  V8 V7 V6 V5 V4 V3 V2 V1
338          * cw2:  V0 R6 R5 R4 R3 R2 R1 R0
339          *
340          * R6:R0 = Reference Divider Word (RDW)
341          * V8:V0 = VCO Divider Word (VDW)
342          * S2:S0 = Output Divider Select (OD)
343          * F1:F0 = Function of CLK2 Output
344          * TTL = duty cycle
345          * C1:C0 = internal load capacitance for cyrstal
346          */
347
348         /* Adding 1 to get a "nicely" rounded number, but this needs
349          * more tweaking to get a "properly" rounded number. */
350
351         freq = 1 + (InputFrequency * 2 * (VDW + 8) / ((RDW + 2) * OD));
352
353         debug("ICS307: CW[0-2]: %02X %02X %02X => %lu Hz\n", cw0, cw1, cw2,
354                         freq);
355         return freq;
356 }
357
358 unsigned long get_board_sys_clk(ulong dummy)
359 {
360         return gd->bus_clk;
361 }
362
363 unsigned long get_board_ddr_clk(ulong dummy)
364 {
365         return gd->mem_clk;
366 }
367
368 unsigned long calculate_board_sys_clk(ulong dummy)
369 {
370         ulong val;
371
372         val = ics307_clk_freq(in_8(&pixis->sclk[0]), in_8(&pixis->sclk[1]),
373                               in_8(&pixis->sclk[2]));
374         debug("sysclk val = %lu\n", val);
375         return val;
376 }
377
378 unsigned long calculate_board_ddr_clk(ulong dummy)
379 {
380         ulong val;
381
382         val = ics307_clk_freq(in_8(&pixis->dclk[0]), in_8(&pixis->dclk[1]),
383                               in_8(&pixis->dclk[2]));
384         debug("ddrclk val = %lu\n", val);
385         return val;
386 }
387 #else
388 unsigned long get_board_sys_clk(ulong dummy)
389 {
390         u8 i;
391         ulong val = 0;
392
393         i = in_8(&pixis->spd);
394         i &= 0x07;
395
396         switch (i) {
397                 case 0:
398                         val = 33333333;
399                         break;
400                 case 1:
401                         val = 40000000;
402                         break;
403                 case 2:
404                         val = 50000000;
405                         break;
406                 case 3:
407                         val = 66666666;
408                         break;
409                 case 4:
410                         val = 83333333;
411                         break;
412                 case 5:
413                         val = 100000000;
414                         break;
415                 case 6:
416                         val = 133333333;
417                         break;
418                 case 7:
419                         val = 166666666;
420                         break;
421         }
422
423         return val;
424 }
425
426 unsigned long get_board_ddr_clk(ulong dummy)
427 {
428         u8 i;
429         ulong val = 0;
430
431         i = in_8(&pixis->spd);
432         i &= 0x38;
433         i >>= 3;
434
435         switch (i) {
436                 case 0:
437                         val = 33333333;
438                         break;
439                 case 1:
440                         val = 40000000;
441                         break;
442                 case 2:
443                         val = 50000000;
444                         break;
445                 case 3:
446                         val = 66666666;
447                         break;
448                 case 4:
449                         val = 83333333;
450                         break;
451                 case 5:
452                         val = 100000000;
453                         break;
454                 case 6:
455                         val = 133333333;
456                         break;
457                 case 7:
458                         val = 166666666;
459                         break;
460         }
461         return val;
462 }
463 #endif
464
465 #ifdef CONFIG_TSEC_ENET
466 int board_eth_init(bd_t *bis)
467 {
468         struct tsec_info_struct tsec_info[4];
469         volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
470         int num = 0;
471
472 #ifdef CONFIG_TSEC1
473         SET_STD_TSEC_INFO(tsec_info[num], 1);
474         num++;
475 #endif
476 #ifdef CONFIG_TSEC2
477         SET_STD_TSEC_INFO(tsec_info[num], 2);
478         if (!(gur->pordevsr & MPC85xx_PORDEVSR_SGMII2_DIS))
479                 tsec_info[num].flags |= TSEC_SGMII;
480         num++;
481 #endif
482 #ifdef CONFIG_TSEC3
483         SET_STD_TSEC_INFO(tsec_info[num], 3);
484         if (!(gur->pordevsr & MPC85xx_PORDEVSR_SGMII3_DIS))
485                 tsec_info[num].flags |= TSEC_SGMII;
486         num++;
487 #endif
488
489         if (!num) {
490                 printf("No TSECs initialized\n");
491
492                 return 0;
493         }
494
495 #ifdef CONFIG_FSL_SGMII_RISER
496         fsl_sgmii_riser_init(tsec_info, num);
497 #endif
498
499         tsec_eth_init(bis, tsec_info, num);
500
501         return pci_eth_init(bis);
502 }
503 #endif
504
505 #if defined(CONFIG_OF_BOARD_SETUP)
506 void ft_board_setup(void *blob, bd_t *bd)
507 {
508         phys_addr_t base;
509         phys_size_t size;
510
511         ft_cpu_setup(blob, bd);
512
513         base = getenv_bootm_low();
514         size = getenv_bootm_size();
515
516         fdt_fixup_memory(blob, (u64)base, (u64)size);
517
518 #ifdef CONFIG_PCIE3
519         ft_fsl_pci_setup(blob, "pci0", &pcie3_hose);
520 #endif
521 #ifdef CONFIG_PCIE2
522         ft_fsl_pci_setup(blob, "pci1", &pcie2_hose);
523 #endif
524 #ifdef CONFIG_PCIE1
525         ft_fsl_pci_setup(blob, "pci2", &pcie1_hose);
526 #endif
527 #ifdef CONFIG_FSL_SGMII_RISER
528         fsl_sgmii_riser_fdt_fixup(blob);
529 #endif
530 }
531 #endif
532
533 #ifdef CONFIG_MP
534 void board_lmb_reserve(struct lmb *lmb)
535 {
536         cpu_mp_lmb_reserve(lmb);
537 }
538 #endif