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c157d8e2 SR |
1 | /* |
2 | * | |
3 | * See file CREDITS for list of people who contributed to this | |
4 | * project. | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License as | |
8 | * published by the Free Software Foundation; either version 2 of | |
9 | * the License, or (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
19 | * MA 02111-1307 USA | |
20 | */ | |
21 | ||
22 | #include <common.h> | |
84286386 | 23 | #include <ppc4xx.h> |
c157d8e2 SR |
24 | #include <asm/processor.h> |
25 | #include <spd_sdram.h> | |
26 | ||
84286386 SR |
27 | extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ |
28 | ||
c157d8e2 SR |
29 | int board_early_init_f(void) |
30 | { | |
31 | register uint reg; | |
32 | ||
33 | /*-------------------------------------------------------------------- | |
34 | * Setup the external bus controller/chip selects | |
35 | *-------------------------------------------------------------------*/ | |
36 | mtdcr(ebccfga, xbcfg); | |
37 | reg = mfdcr(ebccfgd); | |
38 | mtdcr(ebccfgd, reg | 0x04000000); /* Set ATC */ | |
39 | ||
40 | mtebc(pb0ap, 0x03017300); /* FLASH/SRAM */ | |
84286386 | 41 | mtebc(pb0cr, 0xfc0da000); /* BAS=0xfc0 64MB r/w 16-bit */ |
c157d8e2 SR |
42 | |
43 | mtebc(pb1ap, 0x00000000); | |
44 | mtebc(pb1cr, 0x00000000); | |
45 | ||
46 | mtebc(pb2ap, 0x04814500); | |
47 | /*CPLD*/ mtebc(pb2cr, 0x80018000); /*BAS=0x800 1MB r/w 8-bit */ | |
48 | ||
49 | mtebc(pb3ap, 0x00000000); | |
50 | mtebc(pb3cr, 0x00000000); | |
51 | ||
52 | mtebc(pb4ap, 0x00000000); | |
53 | mtebc(pb4cr, 0x00000000); | |
54 | ||
55 | mtebc(pb5ap, 0x00000000); | |
56 | mtebc(pb5cr, 0x00000000); | |
57 | ||
58 | /*-------------------------------------------------------------------- | |
59 | * Setup the interrupt controller polarities, triggers, etc. | |
60 | *-------------------------------------------------------------------*/ | |
61 | mtdcr(uic0sr, 0xffffffff); /* clear all */ | |
62 | mtdcr(uic0er, 0x00000000); /* disable all */ | |
63 | mtdcr(uic0cr, 0x00000009); /* ATI & UIC1 crit are critical */ | |
64 | mtdcr(uic0pr, 0xfffffe13); /* per ref-board manual */ | |
65 | mtdcr(uic0tr, 0x01c00008); /* per ref-board manual */ | |
66 | mtdcr(uic0vr, 0x00000001); /* int31 highest, base=0x000 */ | |
67 | mtdcr(uic0sr, 0xffffffff); /* clear all */ | |
68 | ||
69 | mtdcr(uic1sr, 0xffffffff); /* clear all */ | |
70 | mtdcr(uic1er, 0x00000000); /* disable all */ | |
71 | mtdcr(uic1cr, 0x00000000); /* all non-critical */ | |
72 | mtdcr(uic1pr, 0xffffe0ff); /* per ref-board manual */ | |
73 | mtdcr(uic1tr, 0x00ffc000); /* per ref-board manual */ | |
74 | mtdcr(uic1vr, 0x00000001); /* int31 highest, base=0x000 */ | |
75 | mtdcr(uic1sr, 0xffffffff); /* clear all */ | |
76 | ||
77 | /*-------------------------------------------------------------------- | |
78 | * Setup the GPIO pins | |
79 | *-------------------------------------------------------------------*/ | |
80 | /*CPLD cs */ | |
81 | /*setup Address lines for flash sizes larger than 16Meg. */ | |
82 | out32(GPIO0_OSRL, in32(GPIO0_OSRL) | 0x40010000); | |
83 | out32(GPIO0_TSRL, in32(GPIO0_TSRL) | 0x40010000); | |
84 | out32(GPIO0_ISR1L, in32(GPIO0_ISR1L) | 0x40000000); | |
85 | ||
86 | /*setup emac */ | |
87 | out32(GPIO0_TCR, in32(GPIO0_TCR) | 0xC080); | |
88 | out32(GPIO0_TSRL, in32(GPIO0_TSRL) | 0x40); | |
89 | out32(GPIO0_ISR1L, in32(GPIO0_ISR1L) | 0x55); | |
90 | out32(GPIO0_OSRH, in32(GPIO0_OSRH) | 0x50004000); | |
91 | out32(GPIO0_ISR1H, in32(GPIO0_ISR1H) | 0x00440000); | |
92 | ||
93 | /*UART1 */ | |
94 | out32(GPIO1_TCR, in32(GPIO1_TCR) | 0x02000000); | |
95 | out32(GPIO1_OSRL, in32(GPIO1_OSRL) | 0x00080000); | |
96 | out32(GPIO1_ISR2L, in32(GPIO1_ISR2L) | 0x00010000); | |
97 | ||
e190290b SR |
98 | /* external interrupts IRQ0...3 */ |
99 | out32(GPIO1_TCR, in32(GPIO1_TCR) & ~0x0f000000); | |
100 | out32(GPIO1_TSRL, in32(GPIO1_TSRL) & ~0x00005500); | |
101 | out32(GPIO1_ISR1L, in32(GPIO1_ISR1L) | 0x00005500); | |
102 | ||
c157d8e2 SR |
103 | /*setup USB 2.0 */ |
104 | out32(GPIO1_TCR, in32(GPIO1_TCR) | 0xc0000000); | |
105 | out32(GPIO1_OSRL, in32(GPIO1_OSRL) | 0x50000000); | |
106 | out32(GPIO0_TCR, in32(GPIO0_TCR) | 0xf); | |
107 | out32(GPIO0_OSRH, in32(GPIO0_OSRH) | 0xaa); | |
108 | out32(GPIO0_ISR2H, in32(GPIO0_ISR2H) | 0x00000500); | |
109 | ||
110 | /*-------------------------------------------------------------------- | |
111 | * Setup other serial configuration | |
112 | *-------------------------------------------------------------------*/ | |
113 | mfsdr(sdr_pci0, reg); | |
114 | mtsdr(sdr_pci0, 0x80000000 | reg); /* PCI arbiter enabled */ | |
115 | mtsdr(sdr_pfc0, 0x00003e00); /* Pin function */ | |
116 | mtsdr(sdr_pfc1, 0x00048000); /* Pin function: UART0 has 4 pins */ | |
117 | ||
118 | /*clear tmrclk divisor */ | |
119 | *(unsigned char *)(CFG_BCSR_BASE | 0x04) = 0x00; | |
120 | ||
121 | /*enable ethernet */ | |
122 | *(unsigned char *)(CFG_BCSR_BASE | 0x08) = 0xf0; | |
123 | ||
124 | /*enable usb 1.1 fs device and remove usb 2.0 reset */ | |
125 | *(unsigned char *)(CFG_BCSR_BASE | 0x09) = 0x00; | |
126 | ||
127 | /*get rid of flash write protect */ | |
128 | *(unsigned char *)(CFG_BCSR_BASE | 0x07) = 0x40; | |
129 | ||
130 | return 0; | |
131 | } | |
132 | ||
84286386 SR |
133 | int misc_init_r (void) |
134 | { | |
135 | DECLARE_GLOBAL_DATA_PTR; | |
136 | uint pbcr; | |
137 | int size_val = 0; | |
138 | ||
139 | /* Re-do sizing to get full correct info */ | |
140 | mtdcr(ebccfga, pb0cr); | |
141 | pbcr = mfdcr(ebccfgd); | |
142 | switch (gd->bd->bi_flashsize) { | |
143 | case 1 << 20: | |
144 | size_val = 0; | |
145 | break; | |
146 | case 2 << 20: | |
147 | size_val = 1; | |
148 | break; | |
149 | case 4 << 20: | |
150 | size_val = 2; | |
151 | break; | |
152 | case 8 << 20: | |
153 | size_val = 3; | |
154 | break; | |
155 | case 16 << 20: | |
156 | size_val = 4; | |
157 | break; | |
158 | case 32 << 20: | |
159 | size_val = 5; | |
160 | break; | |
161 | case 64 << 20: | |
162 | size_val = 6; | |
163 | break; | |
164 | case 128 << 20: | |
165 | size_val = 7; | |
166 | break; | |
167 | } | |
168 | pbcr = (pbcr & 0x0001ffff) | gd->bd->bi_flashstart | (size_val << 17); | |
169 | mtdcr(ebccfga, pb0cr); | |
170 | mtdcr(ebccfgd, pbcr); | |
171 | ||
172 | /* Monitor protection ON by default */ | |
173 | (void)flash_protect(FLAG_PROTECT_SET, | |
174 | -CFG_MONITOR_LEN, | |
175 | 0xffffffff, | |
176 | &flash_info[0]); | |
177 | ||
178 | return 0; | |
179 | } | |
180 | ||
c157d8e2 SR |
181 | int checkboard(void) |
182 | { | |
183 | sys_info_t sysinfo; | |
93b17ec3 | 184 | unsigned char *s = getenv("serial#"); |
c157d8e2 SR |
185 | |
186 | get_sys_info(&sysinfo); | |
187 | ||
93b17ec3 SR |
188 | printf("Board: Yosemite - AMCC PPC440EP Evaluation Board"); |
189 | if (s != NULL) { | |
190 | puts(", serial# "); | |
191 | puts(s); | |
192 | } | |
193 | putc('\n'); | |
194 | ||
c157d8e2 SR |
195 | printf("\tVCO: %lu MHz\n", sysinfo.freqVCOMhz / 1000000); |
196 | printf("\tCPU: %lu MHz\n", sysinfo.freqProcessor / 1000000); | |
197 | printf("\tPLB: %lu MHz\n", sysinfo.freqPLB / 1000000); | |
198 | printf("\tOPB: %lu MHz\n", sysinfo.freqOPB / 1000000); | |
93b17ec3 | 199 | printf("\tEPB: %lu MHz\n", sysinfo.freqEPB / 1000000); |
c157d8e2 | 200 | printf("\tPCI: %lu MHz\n", sysinfo.freqPCI / 1000000); |
84286386 | 201 | |
c157d8e2 SR |
202 | return (0); |
203 | } | |
204 | ||
205 | /************************************************************************* | |
206 | * sdram_init -- doesn't use serial presence detect. | |
207 | * | |
208 | * Assumes: 256 MB, ECC, non-registered | |
209 | * PLB @ 133 MHz | |
210 | * | |
211 | ************************************************************************/ | |
212 | void sdram_init(void) | |
213 | { | |
214 | register uint reg; | |
215 | ||
216 | /*-------------------------------------------------------------------- | |
217 | * Setup some default | |
218 | *------------------------------------------------------------------*/ | |
219 | mtsdram(mem_uabba, 0x00000000); /* ubba=0 (default) */ | |
220 | mtsdram(mem_slio, 0x00000000); /* rdre=0 wrre=0 rarw=0 */ | |
221 | mtsdram(mem_devopt, 0x00000000); /* dll=0 ds=0 (normal) */ | |
222 | mtsdram(mem_clktr, 0x40000000); /* ?? */ | |
223 | mtsdram(mem_wddctr, 0x40000000); /* ?? */ | |
224 | ||
225 | /*clear this first, if the DDR is enabled by a debugger | |
226 | then you can not make changes. */ | |
227 | mtsdram(mem_cfg0, 0x00000000); /* Disable EEC */ | |
228 | ||
229 | /*-------------------------------------------------------------------- | |
230 | * Setup for board-specific specific mem | |
231 | *------------------------------------------------------------------*/ | |
232 | /* | |
233 | * Following for CAS Latency = 2.5 @ 133 MHz PLB | |
234 | */ | |
235 | mtsdram(mem_b0cr, 0x000a4001); /* SDBA=0x000 128MB, Mode 3, enabled */ | |
236 | mtsdram(mem_b1cr, 0x080a4001); /* SDBA=0x080 128MB, Mode 3, enabled */ | |
237 | ||
238 | mtsdram(mem_tr0, 0x410a4012); /* ?? */ | |
239 | mtsdram(mem_tr1, 0x8080080b); /* ?? */ | |
240 | mtsdram(mem_rtr, 0x04080000); /* ?? */ | |
241 | mtsdram(mem_cfg1, 0x00000000); /* Self-refresh exit, disable PM */ | |
242 | mtsdram(mem_cfg0, 0x34000000); /* Disable EEC */ | |
243 | udelay(400); /* Delay 200 usecs (min) */ | |
244 | ||
245 | /*-------------------------------------------------------------------- | |
246 | * Enable the controller, then wait for DCEN to complete | |
247 | *------------------------------------------------------------------*/ | |
248 | mtsdram(mem_cfg0, 0x84000000); /* Enable */ | |
249 | ||
250 | for (;;) { | |
251 | mfsdram(mem_mcsts, reg); | |
252 | if (reg & 0x80000000) | |
253 | break; | |
254 | } | |
255 | } | |
256 | ||
257 | /************************************************************************* | |
258 | * long int initdram | |
259 | * | |
260 | ************************************************************************/ | |
261 | long int initdram(int board) | |
262 | { | |
263 | sdram_init(); | |
264 | return CFG_SDRAM_BANKS * (CFG_KBYTES_SDRAM * 1024); /* return bytes */ | |
265 | } | |
266 | ||
267 | #if defined(CFG_DRAM_TEST) | |
268 | int testdram(void) | |
269 | { | |
270 | unsigned long *mem = (unsigned long *)0; | |
271 | const unsigned long kend = (1024 / sizeof(unsigned long)); | |
272 | unsigned long k, n; | |
273 | ||
274 | mtmsr(0); | |
275 | ||
276 | for (k = 0; k < CFG_KBYTES_SDRAM; | |
277 | ++k, mem += (1024 / sizeof(unsigned long))) { | |
278 | if ((k & 1023) == 0) { | |
279 | printf("%3d MB\r", k / 1024); | |
280 | } | |
281 | ||
282 | memset(mem, 0xaaaaaaaa, 1024); | |
283 | for (n = 0; n < kend; ++n) { | |
284 | if (mem[n] != 0xaaaaaaaa) { | |
285 | printf("SDRAM test fails at: %08x\n", | |
286 | (uint) & mem[n]); | |
287 | return 1; | |
288 | } | |
289 | } | |
290 | ||
291 | memset(mem, 0x55555555, 1024); | |
292 | for (n = 0; n < kend; ++n) { | |
293 | if (mem[n] != 0x55555555) { | |
294 | printf("SDRAM test fails at: %08x\n", | |
295 | (uint) & mem[n]); | |
296 | return 1; | |
297 | } | |
298 | } | |
299 | } | |
300 | printf("SDRAM test passes\n"); | |
301 | return 0; | |
302 | } | |
303 | #endif | |
304 | ||
305 | /************************************************************************* | |
306 | * pci_pre_init | |
307 | * | |
308 | * This routine is called just prior to registering the hose and gives | |
309 | * the board the opportunity to check things. Returning a value of zero | |
310 | * indicates that things are bad & PCI initialization should be aborted. | |
311 | * | |
312 | * Different boards may wish to customize the pci controller structure | |
313 | * (add regions, override default access routines, etc) or perform | |
314 | * certain pre-initialization actions. | |
315 | * | |
316 | ************************************************************************/ | |
317 | #if defined(CONFIG_PCI) && defined(CFG_PCI_PRE_INIT) | |
318 | int pci_pre_init(struct pci_controller *hose) | |
319 | { | |
320 | unsigned long strap; | |
321 | unsigned long addr; | |
322 | ||
323 | /*--------------------------------------------------------------------------+ | |
324 | * Bamboo is always configured as the host & requires the | |
325 | * PCI arbiter to be enabled. | |
326 | *--------------------------------------------------------------------------*/ | |
327 | mfsdr(sdr_sdstp1, strap); | |
328 | if ((strap & SDR0_SDSTP1_PAE_MASK) == 0) { | |
329 | printf("PCI: SDR0_STRP1[PAE] not set.\n"); | |
330 | printf("PCI: Configuration aborted.\n"); | |
331 | return 0; | |
332 | } | |
333 | ||
334 | /*-------------------------------------------------------------------------+ | |
335 | | Set priority for all PLB3 devices to 0. | |
336 | | Set PLB3 arbiter to fair mode. | |
337 | +-------------------------------------------------------------------------*/ | |
338 | mfsdr(sdr_amp1, addr); | |
339 | mtsdr(sdr_amp1, (addr & 0x000000FF) | 0x0000FF00); | |
340 | addr = mfdcr(plb3_acr); | |
341 | mtdcr(plb3_acr, addr | 0x80000000); | |
342 | ||
343 | /*-------------------------------------------------------------------------+ | |
344 | | Set priority for all PLB4 devices to 0. | |
345 | +-------------------------------------------------------------------------*/ | |
346 | mfsdr(sdr_amp0, addr); | |
347 | mtsdr(sdr_amp0, (addr & 0x000000FF) | 0x0000FF00); | |
348 | addr = mfdcr(plb4_acr) | 0xa0000000; /* Was 0x8---- */ | |
349 | mtdcr(plb4_acr, addr); | |
350 | ||
351 | /*-------------------------------------------------------------------------+ | |
352 | | Set Nebula PLB4 arbiter to fair mode. | |
353 | +-------------------------------------------------------------------------*/ | |
354 | /* Segment0 */ | |
355 | addr = (mfdcr(plb0_acr) & ~plb0_acr_ppm_mask) | plb0_acr_ppm_fair; | |
356 | addr = (addr & ~plb0_acr_hbu_mask) | plb0_acr_hbu_enabled; | |
357 | addr = (addr & ~plb0_acr_rdp_mask) | plb0_acr_rdp_4deep; | |
358 | addr = (addr & ~plb0_acr_wrp_mask) | plb0_acr_wrp_2deep; | |
359 | mtdcr(plb0_acr, addr); | |
360 | ||
361 | /* Segment1 */ | |
362 | addr = (mfdcr(plb1_acr) & ~plb1_acr_ppm_mask) | plb1_acr_ppm_fair; | |
363 | addr = (addr & ~plb1_acr_hbu_mask) | plb1_acr_hbu_enabled; | |
364 | addr = (addr & ~plb1_acr_rdp_mask) | plb1_acr_rdp_4deep; | |
365 | addr = (addr & ~plb1_acr_wrp_mask) | plb1_acr_wrp_2deep; | |
366 | mtdcr(plb1_acr, addr); | |
367 | ||
368 | return 1; | |
369 | } | |
370 | #endif /* defined(CONFIG_PCI) && defined(CFG_PCI_PRE_INIT) */ | |
371 | ||
372 | /************************************************************************* | |
373 | * pci_target_init | |
374 | * | |
375 | * The bootstrap configuration provides default settings for the pci | |
376 | * inbound map (PIM). But the bootstrap config choices are limited and | |
377 | * may not be sufficient for a given board. | |
378 | * | |
379 | ************************************************************************/ | |
380 | #if defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT) | |
381 | void pci_target_init(struct pci_controller *hose) | |
382 | { | |
383 | /*--------------------------------------------------------------------------+ | |
384 | * Set up Direct MMIO registers | |
385 | *--------------------------------------------------------------------------*/ | |
386 | /*--------------------------------------------------------------------------+ | |
387 | | PowerPC440 EP PCI Master configuration. | |
388 | | Map one 1Gig range of PLB/processor addresses to PCI memory space. | |
389 | | PLB address 0xA0000000-0xDFFFFFFF ==> PCI address 0xA0000000-0xDFFFFFFF | |
390 | | Use byte reversed out routines to handle endianess. | |
391 | | Make this region non-prefetchable. | |
392 | +--------------------------------------------------------------------------*/ | |
393 | out32r(PCIX0_PMM0MA, 0x00000000); /* PMM0 Mask/Attribute - disabled b4 setting */ | |
394 | out32r(PCIX0_PMM0LA, CFG_PCI_MEMBASE); /* PMM0 Local Address */ | |
395 | out32r(PCIX0_PMM0PCILA, CFG_PCI_MEMBASE); /* PMM0 PCI Low Address */ | |
396 | out32r(PCIX0_PMM0PCIHA, 0x00000000); /* PMM0 PCI High Address */ | |
397 | out32r(PCIX0_PMM0MA, 0xE0000001); /* 512M + No prefetching, and enable region */ | |
398 | ||
399 | out32r(PCIX0_PMM1MA, 0x00000000); /* PMM0 Mask/Attribute - disabled b4 setting */ | |
400 | out32r(PCIX0_PMM1LA, CFG_PCI_MEMBASE2); /* PMM0 Local Address */ | |
401 | out32r(PCIX0_PMM1PCILA, CFG_PCI_MEMBASE2); /* PMM0 PCI Low Address */ | |
402 | out32r(PCIX0_PMM1PCIHA, 0x00000000); /* PMM0 PCI High Address */ | |
403 | out32r(PCIX0_PMM1MA, 0xE0000001); /* 512M + No prefetching, and enable region */ | |
404 | ||
405 | out32r(PCIX0_PTM1MS, 0x00000001); /* Memory Size/Attribute */ | |
406 | out32r(PCIX0_PTM1LA, 0); /* Local Addr. Reg */ | |
407 | out32r(PCIX0_PTM2MS, 0); /* Memory Size/Attribute */ | |
408 | out32r(PCIX0_PTM2LA, 0); /* Local Addr. Reg */ | |
409 | ||
410 | /*--------------------------------------------------------------------------+ | |
411 | * Set up Configuration registers | |
412 | *--------------------------------------------------------------------------*/ | |
413 | ||
414 | /* Program the board's subsystem id/vendor id */ | |
415 | pci_write_config_word(0, PCI_SUBSYSTEM_VENDOR_ID, | |
416 | CFG_PCI_SUBSYS_VENDORID); | |
417 | pci_write_config_word(0, PCI_SUBSYSTEM_ID, CFG_PCI_SUBSYS_ID); | |
418 | ||
419 | /* Configure command register as bus master */ | |
420 | pci_write_config_word(0, PCI_COMMAND, PCI_COMMAND_MASTER); | |
421 | ||
422 | /* 240nS PCI clock */ | |
423 | pci_write_config_word(0, PCI_LATENCY_TIMER, 1); | |
424 | ||
425 | /* No error reporting */ | |
426 | pci_write_config_word(0, PCI_ERREN, 0); | |
427 | ||
428 | pci_write_config_dword(0, PCI_BRDGOPT2, 0x00000101); | |
429 | ||
430 | } | |
431 | #endif /* defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT) */ | |
432 | ||
433 | /************************************************************************* | |
434 | * pci_master_init | |
435 | * | |
436 | ************************************************************************/ | |
437 | #if defined(CONFIG_PCI) && defined(CFG_PCI_MASTER_INIT) | |
438 | void pci_master_init(struct pci_controller *hose) | |
439 | { | |
440 | unsigned short temp_short; | |
441 | ||
442 | /*--------------------------------------------------------------------------+ | |
443 | | Write the PowerPC440 EP PCI Configuration regs. | |
444 | | Enable PowerPC440 EP to be a master on the PCI bus (PMM). | |
445 | | Enable PowerPC440 EP to act as a PCI memory target (PTM). | |
446 | +--------------------------------------------------------------------------*/ | |
447 | pci_read_config_word(0, PCI_COMMAND, &temp_short); | |
448 | pci_write_config_word(0, PCI_COMMAND, | |
449 | temp_short | PCI_COMMAND_MASTER | | |
450 | PCI_COMMAND_MEMORY); | |
451 | } | |
452 | #endif /* defined(CONFIG_PCI) && defined(CFG_PCI_MASTER_INIT) */ | |
453 | ||
454 | /************************************************************************* | |
455 | * is_pci_host | |
456 | * | |
457 | * This routine is called to determine if a pci scan should be | |
458 | * performed. With various hardware environments (especially cPCI and | |
459 | * PPMC) it's insufficient to depend on the state of the arbiter enable | |
460 | * bit in the strap register, or generic host/adapter assumptions. | |
461 | * | |
462 | * Rather than hard-code a bad assumption in the general 440 code, the | |
463 | * 440 pci code requires the board to decide at runtime. | |
464 | * | |
465 | * Return 0 for adapter mode, non-zero for host (monarch) mode. | |
466 | * | |
467 | * | |
468 | ************************************************************************/ | |
469 | #if defined(CONFIG_PCI) | |
470 | int is_pci_host(struct pci_controller *hose) | |
471 | { | |
472 | /* Bamboo is always configured as host. */ | |
473 | return (1); | |
474 | } | |
475 | #endif /* defined(CONFIG_PCI) */ | |
476 | ||
477 | /************************************************************************* | |
478 | * hw_watchdog_reset | |
479 | * | |
480 | * This routine is called to reset (keep alive) the watchdog timer | |
481 | * | |
482 | ************************************************************************/ | |
483 | #if defined(CONFIG_HW_WATCHDOG) | |
484 | void hw_watchdog_reset(void) | |
485 | { | |
486 | ||
487 | } | |
488 | #endif |