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debb7354 | 1 | /* |
3d98b858 | 2 | * Copyright 2006, 2007 Freescale Semiconductor. |
debb7354 JL |
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 | |
63cec581 | 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
debb7354 JL |
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 <pci.h> | |
25 | #include <asm/processor.h> | |
26 | #include <asm/immap_86xx.h> | |
63cec581 | 27 | #include <asm/immap_fsl_pci.h> |
debb7354 | 28 | #include <spd.h> |
3d98b858 | 29 | #include <asm/io.h> |
ea9f7395 JL |
30 | #include <libfdt.h> |
31 | #include <fdt_support.h> | |
debb7354 | 32 | |
4ce91774 | 33 | #include "../common/pixis.h" |
4d3d729c | 34 | |
debb7354 JL |
35 | #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) |
36 | extern void ddr_enable_ecc(unsigned int dram_size); | |
37 | #endif | |
38 | ||
cb5965fb JL |
39 | #if defined(CONFIG_SPD_EEPROM) |
40 | #include "spd_sdram.h" | |
41 | #endif | |
debb7354 | 42 | |
debb7354 JL |
43 | void sdram_init(void); |
44 | long int fixed_sdram(void); | |
45 | ||
46 | ||
80e955c7 | 47 | int board_early_init_f(void) |
debb7354 | 48 | { |
cb5965fb | 49 | return 0; |
debb7354 JL |
50 | } |
51 | ||
80e955c7 | 52 | int checkboard(void) |
debb7354 JL |
53 | { |
54 | puts("Board: MPC8641HPCN\n"); | |
55 | ||
debb7354 JL |
56 | return 0; |
57 | } | |
58 | ||
59 | ||
60 | long int | |
61 | initdram(int board_type) | |
62 | { | |
63 | long dram_size = 0; | |
debb7354 JL |
64 | |
65 | #if defined(CONFIG_SPD_EEPROM) | |
80e955c7 | 66 | dram_size = spd_sdram(); |
debb7354 | 67 | #else |
80e955c7 | 68 | dram_size = fixed_sdram(); |
debb7354 JL |
69 | #endif |
70 | ||
71 | #if defined(CFG_RAMBOOT) | |
72 | puts(" DDR: "); | |
73 | return dram_size; | |
74 | #endif | |
cb5965fb | 75 | |
debb7354 JL |
76 | #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) |
77 | /* | |
78 | * Initialize and enable DDR ECC. | |
79 | */ | |
80 | ddr_enable_ecc(dram_size); | |
81 | #endif | |
82 | ||
debb7354 JL |
83 | puts(" DDR: "); |
84 | return dram_size; | |
85 | } | |
86 | ||
87 | ||
debb7354 | 88 | #if defined(CFG_DRAM_TEST) |
80e955c7 JL |
89 | int |
90 | testdram(void) | |
debb7354 JL |
91 | { |
92 | uint *pstart = (uint *) CFG_MEMTEST_START; | |
93 | uint *pend = (uint *) CFG_MEMTEST_END; | |
94 | uint *p; | |
95 | ||
cb5965fb | 96 | puts("SDRAM test phase 1:\n"); |
debb7354 JL |
97 | for (p = pstart; p < pend; p++) |
98 | *p = 0xaaaaaaaa; | |
99 | ||
100 | for (p = pstart; p < pend; p++) { | |
101 | if (*p != 0xaaaaaaaa) { | |
80e955c7 | 102 | printf("SDRAM test fails at: %08x\n", (uint) p); |
debb7354 JL |
103 | return 1; |
104 | } | |
105 | } | |
106 | ||
cb5965fb | 107 | puts("SDRAM test phase 2:\n"); |
debb7354 JL |
108 | for (p = pstart; p < pend; p++) |
109 | *p = 0x55555555; | |
110 | ||
111 | for (p = pstart; p < pend; p++) { | |
112 | if (*p != 0x55555555) { | |
80e955c7 | 113 | printf("SDRAM test fails at: %08x\n", (uint) p); |
debb7354 JL |
114 | return 1; |
115 | } | |
116 | } | |
117 | ||
cb5965fb | 118 | puts("SDRAM test passed.\n"); |
debb7354 JL |
119 | return 0; |
120 | } | |
121 | #endif | |
122 | ||
123 | ||
124 | #if !defined(CONFIG_SPD_EEPROM) | |
5c9efb36 JL |
125 | /* |
126 | * Fixed sdram init -- doesn't use serial presence detect. | |
127 | */ | |
80e955c7 JL |
128 | long int |
129 | fixed_sdram(void) | |
debb7354 JL |
130 | { |
131 | #if !defined(CFG_RAMBOOT) | |
80e955c7 JL |
132 | volatile immap_t *immap = (immap_t *) CFG_IMMR; |
133 | volatile ccsr_ddr_t *ddr = &immap->im_ddr1; | |
debb7354 JL |
134 | |
135 | ddr->cs0_bnds = CFG_DDR_CS0_BNDS; | |
136 | ddr->cs0_config = CFG_DDR_CS0_CONFIG; | |
137 | ddr->ext_refrec = CFG_DDR_EXT_REFRESH; | |
138 | ddr->timing_cfg_0 = CFG_DDR_TIMING_0; | |
139 | ddr->timing_cfg_1 = CFG_DDR_TIMING_1; | |
140 | ddr->timing_cfg_2 = CFG_DDR_TIMING_2; | |
141 | ddr->sdram_mode_1 = CFG_DDR_MODE_1; | |
142 | ddr->sdram_mode_2 = CFG_DDR_MODE_2; | |
143 | ddr->sdram_interval = CFG_DDR_INTERVAL; | |
cb5965fb | 144 | ddr->sdram_data_init = CFG_DDR_DATA_INIT; |
debb7354 | 145 | ddr->sdram_clk_cntl = CFG_DDR_CLK_CTRL; |
cb5965fb | 146 | ddr->sdram_ocd_cntl = CFG_DDR_OCD_CTRL; |
debb7354 JL |
147 | ddr->sdram_ocd_status = CFG_DDR_OCD_STATUS; |
148 | ||
149 | #if defined (CONFIG_DDR_ECC) | |
150 | ddr->err_disable = 0x0000008D; | |
151 | ddr->err_sbe = 0x00ff0000; | |
152 | #endif | |
153 | asm("sync;isync"); | |
cb5965fb | 154 | |
debb7354 JL |
155 | udelay(500); |
156 | ||
157 | #if defined (CONFIG_DDR_ECC) | |
158 | /* Enable ECC checking */ | |
159 | ddr->sdram_cfg_1 = (CFG_DDR_CONTROL | 0x20000000); | |
160 | #else | |
161 | ddr->sdram_cfg_1 = CFG_DDR_CONTROL; | |
162 | ddr->sdram_cfg_2 = CFG_DDR_CONTROL2; | |
163 | #endif | |
164 | asm("sync; isync"); | |
cb5965fb | 165 | |
debb7354 JL |
166 | udelay(500); |
167 | #endif | |
168 | return CFG_SDRAM_SIZE * 1024 * 1024; | |
169 | } | |
170 | #endif /* !defined(CONFIG_SPD_EEPROM) */ | |
171 | ||
172 | ||
173 | #if defined(CONFIG_PCI) | |
174 | /* | |
175 | * Initialize PCI Devices, report devices found. | |
176 | */ | |
177 | ||
178 | #ifndef CONFIG_PCI_PNP | |
179 | static struct pci_config_table pci_fsl86xxads_config_table[] = { | |
80e955c7 JL |
180 | {PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, |
181 | PCI_IDSEL_NUMBER, PCI_ANY_ID, | |
182 | pci_cfgfunc_config_device, {PCI_ENET0_IOADDR, | |
183 | PCI_ENET0_MEMADDR, | |
184 | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER}}, | |
185 | {} | |
debb7354 JL |
186 | }; |
187 | #endif | |
188 | ||
189 | ||
63cec581 | 190 | static struct pci_controller pci1_hose = { |
debb7354 | 191 | #ifndef CONFIG_PCI_PNP |
63cec581 | 192 | config_table:pci_mpc86xxcts_config_table |
debb7354 JL |
193 | #endif |
194 | }; | |
80e955c7 | 195 | #endif /* CONFIG_PCI */ |
debb7354 | 196 | |
63cec581 ES |
197 | #ifdef CONFIG_PCI2 |
198 | static struct pci_controller pci2_hose; | |
199 | #endif /* CONFIG_PCI2 */ | |
200 | ||
201 | int first_free_busno = 0; | |
202 | ||
203 | ||
80e955c7 | 204 | void pci_init_board(void) |
debb7354 | 205 | { |
63cec581 ES |
206 | volatile immap_t *immap = (immap_t *) CFG_CCSRBAR; |
207 | volatile ccsr_gur_t *gur = &immap->im_gur; | |
208 | uint devdisr = gur->devdisr; | |
209 | uint io_sel = (gur->pordevsr & MPC86xx_PORDEVSR_IO_SEL) >> 16; | |
210 | ||
211 | #ifdef CONFIG_PCI1 | |
212 | { | |
213 | volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CFG_PCI1_ADDR; | |
214 | extern void fsl_pci_init(struct pci_controller *hose); | |
215 | struct pci_controller *hose = &pci1_hose; | |
216 | #ifdef DEBUG | |
217 | uint host1_agent = (gur->porbmsr & MPC86xx_PORBMSR_HA) >> 17; | |
218 | uint pex1_agent = (host1_agent == 0) || (host1_agent == 1); | |
219 | #endif | |
220 | if ((io_sel == 2 || io_sel == 3 || io_sel == 5 | |
221 | || io_sel == 6 || io_sel == 7 || io_sel == 0xF) | |
222 | && !(devdisr & MPC86xx_DEVDISR_PCIEX1)) { | |
223 | debug("PCI-EXPRESS 1: %s \n", pex1_agent ? "Agent" : "Host"); | |
224 | debug("0x%08x=0x%08x ", &pci->pme_msg_det, pci->pme_msg_det); | |
225 | if (pci->pme_msg_det) { | |
226 | pci->pme_msg_det = 0xffffffff; | |
227 | debug(" with errors. Clearing. Now 0x%08x", | |
228 | pci->pme_msg_det); | |
229 | } | |
230 | debug("\n"); | |
231 | ||
232 | /* inbound */ | |
233 | pci_set_region(hose->regions + 0, | |
234 | CFG_PCI_MEMORY_BUS, | |
235 | CFG_PCI_MEMORY_PHYS, | |
236 | CFG_PCI_MEMORY_SIZE, | |
237 | PCI_REGION_MEM | PCI_REGION_MEMORY); | |
238 | ||
239 | /* outbound memory */ | |
240 | pci_set_region(hose->regions + 1, | |
241 | CFG_PCI1_MEM_BASE, | |
242 | CFG_PCI1_MEM_PHYS, | |
243 | CFG_PCI1_MEM_SIZE, | |
244 | PCI_REGION_MEM); | |
245 | ||
246 | /* outbound io */ | |
247 | pci_set_region(hose->regions + 2, | |
248 | CFG_PCI1_IO_BASE, | |
249 | CFG_PCI1_IO_PHYS, | |
250 | CFG_PCI1_IO_SIZE, | |
251 | PCI_REGION_IO); | |
252 | ||
253 | hose->region_count = 3; | |
254 | ||
255 | hose->first_busno=first_free_busno; | |
256 | pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data); | |
257 | ||
258 | fsl_pci_init(hose); | |
259 | ||
260 | first_free_busno=hose->last_busno+1; | |
261 | printf (" PCI-EXPRESS 1 on bus %02x - %02x\n", | |
262 | hose->first_busno,hose->last_busno); | |
263 | ||
264 | /* | |
265 | * Activate ULI1575 legacy chip by performing a fake | |
266 | * memory access. Needed to make ULI RTC work. | |
267 | */ | |
cf0b185e JL |
268 | in_be32((unsigned *) ((char *)(CFG_PCI1_MEM_BASE |
269 | + CFG_PCI1_MEM_SIZE - 0x1000000))); | |
63cec581 ES |
270 | |
271 | } else { | |
272 | puts("PCI-EXPRESS 1: Disabled\n"); | |
273 | } | |
274 | } | |
275 | #else | |
276 | puts("PCI-EXPRESS1: Disabled\n"); | |
277 | #endif /* CONFIG_PCI1 */ | |
278 | ||
279 | #ifdef CONFIG_PCI2 | |
280 | { | |
281 | volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CFG_PCI2_ADDR; | |
282 | extern void fsl_pci_init(struct pci_controller *hose); | |
283 | struct pci_controller *hose = &pci2_hose; | |
284 | ||
285 | ||
286 | /* inbound */ | |
287 | pci_set_region(hose->regions + 0, | |
288 | CFG_PCI_MEMORY_BUS, | |
289 | CFG_PCI_MEMORY_PHYS, | |
290 | CFG_PCI_MEMORY_SIZE, | |
291 | PCI_REGION_MEM | PCI_REGION_MEMORY); | |
292 | ||
293 | /* outbound memory */ | |
294 | pci_set_region(hose->regions + 1, | |
295 | CFG_PCI2_MEM_BASE, | |
296 | CFG_PCI2_MEM_PHYS, | |
297 | CFG_PCI2_MEM_SIZE, | |
298 | PCI_REGION_MEM); | |
299 | ||
300 | /* outbound io */ | |
301 | pci_set_region(hose->regions + 2, | |
302 | CFG_PCI2_IO_BASE, | |
303 | CFG_PCI2_IO_PHYS, | |
304 | CFG_PCI2_IO_SIZE, | |
305 | PCI_REGION_IO); | |
306 | ||
307 | hose->region_count = 3; | |
308 | ||
309 | hose->first_busno=first_free_busno; | |
310 | pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data); | |
311 | ||
312 | fsl_pci_init(hose); | |
313 | ||
314 | first_free_busno=hose->last_busno+1; | |
315 | printf (" PCI-EXPRESS 2 on bus %02x - %02x\n", | |
316 | hose->first_busno,hose->last_busno); | |
317 | } | |
318 | #else | |
319 | puts("PCI-EXPRESS 2: Disabled\n"); | |
320 | #endif /* CONFIG_PCI2 */ | |
debb7354 | 321 | |
debb7354 JL |
322 | } |
323 | ||
ea9f7395 | 324 | #if defined(CONFIG_OF_BOARD_SETUP) |
debb7354 JL |
325 | void |
326 | ft_board_setup(void *blob, bd_t *bd) | |
327 | { | |
ea9f7395 JL |
328 | int node, tmp[2]; |
329 | const char *path; | |
debb7354 | 330 | |
ea9f7395 | 331 | fdt_fixup_ethernet(blob, bd); |
cb5965fb | 332 | |
ea9f7395 JL |
333 | do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, |
334 | "timebase-frequency", bd->bi_busfreq / 4, 1); | |
335 | do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, | |
336 | "bus-frequency", bd->bi_busfreq, 1); | |
337 | do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, | |
338 | "clock-frequency", bd->bi_intfreq, 1); | |
339 | do_fixup_by_prop_u32(blob, "device_type", "soc", 4, | |
340 | "bus-frequency", bd->bi_busfreq, 1); | |
341 | ||
342 | do_fixup_by_compat_u32(blob, "ns16550", | |
343 | "clock-frequency", bd->bi_busfreq, 1); | |
344 | ||
345 | fdt_fixup_memory(blob, bd->bi_memstart, bd->bi_memsize); | |
346 | ||
347 | node = fdt_path_offset(blob, "/aliases"); | |
348 | tmp[0] = 0; | |
349 | if (node >= 0) { | |
f75e89e9 | 350 | #ifdef CONFIG_PCI1 |
ea9f7395 JL |
351 | path = fdt_getprop(blob, node, "pci0", NULL); |
352 | if (path) { | |
353 | tmp[1] = pci1_hose.last_busno - pci1_hose.first_busno; | |
354 | do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1); | |
355 | } | |
f75e89e9 ES |
356 | #endif |
357 | #ifdef CONFIG_PCI2 | |
ea9f7395 JL |
358 | path = fdt_getprop(blob, node, "pci1", NULL); |
359 | if (path) { | |
360 | tmp[1] = pci2_hose.last_busno - pci2_hose.first_busno; | |
361 | do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1); | |
362 | } | |
f75e89e9 | 363 | #endif |
ea9f7395 | 364 | } |
debb7354 JL |
365 | } |
366 | #endif | |
367 | ||
debb7354 | 368 | |
239db37c HW |
369 | /* |
370 | * get_board_sys_clk | |
371 | * Reads the FPGA on board for CONFIG_SYS_CLK_FREQ | |
372 | */ | |
373 | ||
80e955c7 JL |
374 | unsigned long |
375 | get_board_sys_clk(ulong dummy) | |
239db37c HW |
376 | { |
377 | u8 i, go_bit, rd_clks; | |
378 | ulong val = 0; | |
379 | ||
380 | go_bit = in8(PIXIS_BASE + PIXIS_VCTL); | |
381 | go_bit &= 0x01; | |
382 | ||
383 | rd_clks = in8(PIXIS_BASE + PIXIS_VCFGEN0); | |
384 | rd_clks &= 0x1C; | |
385 | ||
386 | /* | |
387 | * Only if both go bit and the SCLK bit in VCFGEN0 are set | |
388 | * should we be using the AUX register. Remember, we also set the | |
389 | * GO bit to boot from the alternate bank on the on-board flash | |
390 | */ | |
391 | ||
392 | if (go_bit) { | |
393 | if (rd_clks == 0x1c) | |
394 | i = in8(PIXIS_BASE + PIXIS_AUX); | |
395 | else | |
396 | i = in8(PIXIS_BASE + PIXIS_SPD); | |
397 | } else { | |
398 | i = in8(PIXIS_BASE + PIXIS_SPD); | |
399 | } | |
400 | ||
401 | i &= 0x07; | |
402 | ||
403 | switch (i) { | |
404 | case 0: | |
405 | val = 33000000; | |
406 | break; | |
407 | case 1: | |
408 | val = 40000000; | |
409 | break; | |
410 | case 2: | |
411 | val = 50000000; | |
412 | break; | |
413 | case 3: | |
414 | val = 66000000; | |
415 | break; | |
416 | case 4: | |
417 | val = 83000000; | |
418 | break; | |
419 | case 5: | |
420 | val = 100000000; | |
421 | break; | |
422 | case 6: | |
423 | val = 134000000; | |
424 | break; | |
425 | case 7: | |
426 | val = 166000000; | |
427 | break; | |
428 | } | |
429 | ||
430 | return val; | |
431 | } |