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allow coexistance of N build and AC build.
[tomato.git] / release / src-rt-6.x / linux / linux-2.6 / arch / powerpc / platforms / iseries / dt.c
blob9e8a334a518a8cc1dd9f9224c4e88399d1a45a59
1 /*
2 * Copyright (C) 2005-2006 Michael Ellerman, IBM Corporation
3 * Copyright (C) 2000-2004, IBM Corporation
4 *
5 * Description:
6 * This file contains all the routines to build a flattened device
7 * tree for a legacy iSeries machine.
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version
12 * 2 of the License, or (at your option) any later version.
13 */
14
15 #undef DEBUG
16
17 #include <linux/types.h>
18 #include <linux/init.h>
19 #include <linux/pci.h>
20 #include <linux/pci_regs.h>
21 #include <linux/pci_ids.h>
22 #include <linux/threads.h>
23 #include <linux/bitops.h>
24 #include <linux/string.h>
25 #include <linux/kernel.h>
26 #include <linux/if_ether.h> /* ETH_ALEN */
27
28 #include <asm/machdep.h>
29 #include <asm/prom.h>
30 #include <asm/lppaca.h>
31 #include <asm/cputable.h>
32 #include <asm/abs_addr.h>
33 #include <asm/system.h>
34 #include <asm/iseries/hv_types.h>
35 #include <asm/iseries/hv_lp_config.h>
36 #include <asm/iseries/hv_call_xm.h>
37 #include <asm/udbg.h>
38
39 #include "processor_vpd.h"
40 #include "call_hpt.h"
41 #include "call_pci.h"
42 #include "pci.h"
43 #include "it_exp_vpd_panel.h"
44 #include "naca.h"
45
46 #ifdef DEBUG
47 #define DBG(fmt...) udbg_printf(fmt)
48 #else
49 #define DBG(fmt...)
50 #endif
51
52 /*
53 * These are created by the linker script at the start and end
54 * of the section containing all the strings from this file.
55 */
56 extern char __dt_strings_start[];
57 extern char __dt_strings_end[];
58
59 struct iseries_flat_dt {
60 struct boot_param_header header;
61 u64 reserve_map[2];
62 };
63
64 static void * __initdata dt_data;
65
66 /*
67 * Putting these strings here keeps them out of the section
68 * that we rename to .dt_strings using objcopy and capture
69 * for the strings blob of the flattened device tree.
70 */
71 static char __initdata device_type_cpu[] = "cpu";
72 static char __initdata device_type_memory[] = "memory";
73 static char __initdata device_type_serial[] = "serial";
74 static char __initdata device_type_network[] = "network";
75 static char __initdata device_type_block[] = "block";
76 static char __initdata device_type_byte[] = "byte";
77 static char __initdata device_type_pci[] = "pci";
78 static char __initdata device_type_vdevice[] = "vdevice";
79 static char __initdata device_type_vscsi[] = "vscsi";
80
81
82 /* EBCDIC to ASCII conversion routines */
83
84 static unsigned char __init e2a(unsigned char x)
85 {
86 switch (x) {
87 case 0x81 ... 0x89:
88 return x - 0x81 + 'a';
89 case 0x91 ... 0x99:
90 return x - 0x91 + 'j';
91 case 0xA2 ... 0xA9:
92 return x - 0xA2 + 's';
93 case 0xC1 ... 0xC9:
94 return x - 0xC1 + 'A';
95 case 0xD1 ... 0xD9:
96 return x - 0xD1 + 'J';
97 case 0xE2 ... 0xE9:
98 return x - 0xE2 + 'S';
99 case 0xF0 ... 0xF9:
100 return x - 0xF0 + '0';
101 }
102 return ' ';
103 }
104
105 static unsigned char * __init strne2a(unsigned char *dest,
106 const unsigned char *src, size_t n)
107 {
108 int i;
109
110 n = strnlen(src, n);
111
112 for (i = 0; i < n; i++)
113 dest[i] = e2a(src[i]);
114
115 return dest;
116 }
117
118 static struct iseries_flat_dt * __init dt_init(void)
119 {
120 struct iseries_flat_dt *dt;
121 unsigned long str_len;
122
123 str_len = __dt_strings_end - __dt_strings_start;
124 dt = (struct iseries_flat_dt *)ALIGN(klimit, 8);
125 dt->header.off_mem_rsvmap =
126 offsetof(struct iseries_flat_dt, reserve_map);
127 dt->header.off_dt_strings = ALIGN(sizeof(*dt), 8);
128 dt->header.off_dt_struct = dt->header.off_dt_strings
129 + ALIGN(str_len, 8);
130 dt_data = (void *)((unsigned long)dt + dt->header.off_dt_struct);
131 dt->header.dt_strings_size = str_len;
132
133 /* There is no notion of hardware cpu id on iSeries */
134 dt->header.boot_cpuid_phys = smp_processor_id();
135
136 memcpy((char *)dt + dt->header.off_dt_strings, __dt_strings_start,
137 str_len);
138
139 dt->header.magic = OF_DT_HEADER;
140 dt->header.version = 0x10;
141 dt->header.last_comp_version = 0x10;
142
143 dt->reserve_map[0] = 0;
144 dt->reserve_map[1] = 0;
145
146 return dt;
147 }
148
149 static void __init dt_push_u32(struct iseries_flat_dt *dt, u32 value)
150 {
151 *((u32 *)dt_data) = value;
152 dt_data += sizeof(u32);
153 }
154
155 #ifdef notyet
156 static void __init dt_push_u64(struct iseries_flat_dt *dt, u64 value)
157 {
158 *((u64 *)dt_data) = value;
159 dt_data += sizeof(u64);
160 }
161 #endif
162
163 static void __init dt_push_bytes(struct iseries_flat_dt *dt, const char *data,
164 int len)
165 {
166 memcpy(dt_data, data, len);
167 dt_data += ALIGN(len, 4);
168 }
169
170 static void __init dt_start_node(struct iseries_flat_dt *dt, const char *name)
171 {
172 dt_push_u32(dt, OF_DT_BEGIN_NODE);
173 dt_push_bytes(dt, name, strlen(name) + 1);
174 }
175
176 #define dt_end_node(dt) dt_push_u32(dt, OF_DT_END_NODE)
177
178 static void __init dt_prop(struct iseries_flat_dt *dt, const char *name,
179 const void *data, int len)
180 {
181 unsigned long offset;
182
183 dt_push_u32(dt, OF_DT_PROP);
184
185 /* Length of the data */
186 dt_push_u32(dt, len);
187
188 offset = name - __dt_strings_start;
189
190 /* The offset of the properties name in the string blob. */
191 dt_push_u32(dt, (u32)offset);
192
193 /* The actual data. */
194 dt_push_bytes(dt, data, len);
195 }
196
197 static void __init dt_prop_str(struct iseries_flat_dt *dt, const char *name,
198 const char *data)
199 {
200 dt_prop(dt, name, data, strlen(data) + 1); /* + 1 for NULL */
201 }
202
203 static void __init dt_prop_u32(struct iseries_flat_dt *dt, const char *name,
204 u32 data)
205 {
206 dt_prop(dt, name, &data, sizeof(u32));
207 }
208
209 static void __init dt_prop_u64(struct iseries_flat_dt *dt, const char *name,
210 u64 data)
211 {
212 dt_prop(dt, name, &data, sizeof(u64));
213 }
214
215 static void __init dt_prop_u64_list(struct iseries_flat_dt *dt,
216 const char *name, u64 *data, int n)
217 {
218 dt_prop(dt, name, data, sizeof(u64) * n);
219 }
220
221 static void __init dt_prop_u32_list(struct iseries_flat_dt *dt,
222 const char *name, u32 *data, int n)
223 {
224 dt_prop(dt, name, data, sizeof(u32) * n);
225 }
226
227 #ifdef notyet
228 static void __init dt_prop_empty(struct iseries_flat_dt *dt, const char *name)
229 {
230 dt_prop(dt, name, NULL, 0);
231 }
232 #endif
233
234 static void __init dt_cpus(struct iseries_flat_dt *dt)
235 {
236 unsigned char buf[32];
237 unsigned char *p;
238 unsigned int i, index;
239 struct IoHriProcessorVpd *d;
240 u32 pft_size[2];
241
242 /* yuck */
243 snprintf(buf, 32, "PowerPC,%s", cur_cpu_spec->cpu_name);
244 p = strchr(buf, ' ');
245 if (!p) p = buf + strlen(buf);
246
247 dt_start_node(dt, "cpus");
248 dt_prop_u32(dt, "#address-cells", 1);
249 dt_prop_u32(dt, "#size-cells", 0);
250
251 pft_size[0] = 0; /* NUMA CEC cookie, 0 for non NUMA */
252 pft_size[1] = __ilog2(HvCallHpt_getHptPages() * HW_PAGE_SIZE);
253
254 for (i = 0; i < NR_CPUS; i++) {
255 if (lppaca[i].dyn_proc_status >= 2)
256 continue;
257
258 snprintf(p, 32 - (p - buf), "@%d", i);
259 dt_start_node(dt, buf);
260
261 dt_prop_str(dt, "device_type", device_type_cpu);
262
263 index = lppaca[i].dyn_hv_phys_proc_index;
264 d = &xIoHriProcessorVpd[index];
265
266 dt_prop_u32(dt, "i-cache-size", d->xInstCacheSize * 1024);
267 dt_prop_u32(dt, "i-cache-line-size", d->xInstCacheOperandSize);
268
269 dt_prop_u32(dt, "d-cache-size", d->xDataL1CacheSizeKB * 1024);
270 dt_prop_u32(dt, "d-cache-line-size", d->xDataCacheOperandSize);
271
272 /* magic conversions to Hz copied from old code */
273 dt_prop_u32(dt, "clock-frequency",
274 ((1UL << 34) * 1000000) / d->xProcFreq);
275 dt_prop_u32(dt, "timebase-frequency",
276 ((1UL << 32) * 1000000) / d->xTimeBaseFreq);
277
278 dt_prop_u32(dt, "reg", i);
279
280 dt_prop_u32_list(dt, "ibm,pft-size", pft_size, 2);
281
282 dt_end_node(dt);
283 }
284
285 dt_end_node(dt);
286 }
287
288 static void __init dt_model(struct iseries_flat_dt *dt)
289 {
290 char buf[16] = "IBM,";
291
292 /* N.B. lparcfg.c knows about the "IBM," prefixes ... */
293 /* "IBM," + mfgId[2:3] + systemSerial[1:5] */
294 strne2a(buf + 4, xItExtVpdPanel.mfgID + 2, 2);
295 strne2a(buf + 6, xItExtVpdPanel.systemSerial + 1, 5);
296 buf[11] = '\0';
297 dt_prop_str(dt, "system-id", buf);
298
299 /* "IBM," + machineType[0:4] */
300 strne2a(buf + 4, xItExtVpdPanel.machineType, 4);
301 buf[8] = '\0';
302 dt_prop_str(dt, "model", buf);
303
304 dt_prop_str(dt, "compatible", "IBM,iSeries");
305 dt_prop_u32(dt, "ibm,partition-no", HvLpConfig_getLpIndex());
306 }
307
308 static void __init dt_initrd(struct iseries_flat_dt *dt)
309 {
310 #ifdef CONFIG_BLK_DEV_INITRD
311 if (naca.xRamDisk) {
312 dt_prop_u64(dt, "linux,initrd-start", (u64)naca.xRamDisk);
313 dt_prop_u64(dt, "linux,initrd-end",
314 (u64)naca.xRamDisk + naca.xRamDiskSize * HW_PAGE_SIZE);
315 }
316 #endif
317 }
318
319 static void __init dt_do_vdevice(struct iseries_flat_dt *dt,
320 const char *name, u32 reg, int unit,
321 const char *type, const char *compat, int end)
322 {
323 char buf[32];
324
325 snprintf(buf, 32, "%s@%08x", name, reg + ((unit >= 0) ? unit : 0));
326 dt_start_node(dt, buf);
327 dt_prop_str(dt, "device_type", type);
328 if (compat)
329 dt_prop_str(dt, "compatible", compat);
330 dt_prop_u32(dt, "reg", reg + ((unit >= 0) ? unit : 0));
331 if (unit >= 0)
332 dt_prop_u32(dt, "linux,unit_address", unit);
333 if (end)
334 dt_end_node(dt);
335 }
336
337 static void __init dt_vdevices(struct iseries_flat_dt *dt)
338 {
339 u32 reg = 0;
340 HvLpIndexMap vlan_map;
341 int i;
342
343 dt_start_node(dt, "vdevice");
344 dt_prop_str(dt, "device_type", device_type_vdevice);
345 dt_prop_str(dt, "compatible", "IBM,iSeries-vdevice");
346 dt_prop_u32(dt, "#address-cells", 1);
347 dt_prop_u32(dt, "#size-cells", 0);
348
349 dt_do_vdevice(dt, "vty", reg, -1, device_type_serial,
350 "IBM,iSeries-vty", 1);
351 reg++;
352
353 dt_do_vdevice(dt, "v-scsi", reg, -1, device_type_vscsi,
354 "IBM,v-scsi", 1);
355 reg++;
356
357 vlan_map = HvLpConfig_getVirtualLanIndexMap();
358 for (i = 0; i < HVMAXARCHITECTEDVIRTUALLANS; i++) {
359 unsigned char mac_addr[ETH_ALEN];
360
361 if ((vlan_map & (0x8000 >> i)) == 0)
362 continue;
363 dt_do_vdevice(dt, "l-lan", reg, i, device_type_network,
364 "IBM,iSeries-l-lan", 0);
365 mac_addr[0] = 0x02;
366 mac_addr[1] = 0x01;
367 mac_addr[2] = 0xff;
368 mac_addr[3] = i;
369 mac_addr[4] = 0xff;
370 mac_addr[5] = HvLpConfig_getLpIndex_outline();
371 dt_prop(dt, "local-mac-address", (char *)mac_addr, ETH_ALEN);
372 dt_prop(dt, "mac-address", (char *)mac_addr, ETH_ALEN);
373 dt_prop_u32(dt, "max-frame-size", 9000);
374 dt_prop_u32(dt, "address-bits", 48);
375
376 dt_end_node(dt);
377 }
378 reg += HVMAXARCHITECTEDVIRTUALLANS;
379
380 for (i = 0; i < HVMAXARCHITECTEDVIRTUALDISKS; i++)
381 dt_do_vdevice(dt, "viodasd", reg, i, device_type_block,
382 "IBM,iSeries-viodasd", 1);
383 reg += HVMAXARCHITECTEDVIRTUALDISKS;
384
385 for (i = 0; i < HVMAXARCHITECTEDVIRTUALCDROMS; i++)
386 dt_do_vdevice(dt, "viocd", reg, i, device_type_block,
387 "IBM,iSeries-viocd", 1);
388 reg += HVMAXARCHITECTEDVIRTUALCDROMS;
389
390 for (i = 0; i < HVMAXARCHITECTEDVIRTUALTAPES; i++)
391 dt_do_vdevice(dt, "viotape", reg, i, device_type_byte,
392 "IBM,iSeries-viotape", 1);
393
394 dt_end_node(dt);
395 }
396
397 struct pci_class_name {
398 u16 code;
399 const char *name;
400 const char *type;
401 };
402
403 static struct pci_class_name __initdata pci_class_name[] = {
404 { PCI_CLASS_NETWORK_ETHERNET, "ethernet", device_type_network },
405 };
406
407 static struct pci_class_name * __init dt_find_pci_class_name(u16 class_code)
408 {
409 struct pci_class_name *cp;
410
411 for (cp = pci_class_name;
412 cp < &pci_class_name[ARRAY_SIZE(pci_class_name)]; cp++)
413 if (cp->code == class_code)
414 return cp;
415 return NULL;
416 }
417
418 /*
419 * This assumes that the node slot is always on the primary bus!
420 */
421 static void __init scan_bridge_slot(struct iseries_flat_dt *dt,
422 HvBusNumber bus, struct HvCallPci_BridgeInfo *bridge_info)
423 {
424 HvSubBusNumber sub_bus = bridge_info->subBusNumber;
425 u16 vendor_id;
426 u16 device_id;
427 u32 class_id;
428 int err;
429 char buf[32];
430 u32 reg[5];
431 int id_sel = ISERIES_GET_DEVICE_FROM_SUBBUS(sub_bus);
432 int function = ISERIES_GET_FUNCTION_FROM_SUBBUS(sub_bus);
433 HvAgentId eads_id_sel = ISERIES_PCI_AGENTID(id_sel, function);
434 u8 devfn;
435 struct pci_class_name *cp;
436
437 /*
438 * Connect all functions of any device found.
439 */
440 for (id_sel = 1; id_sel <= bridge_info->maxAgents; id_sel++) {
441 for (function = 0; function < 8; function++) {
442 HvAgentId agent_id = ISERIES_PCI_AGENTID(id_sel,
443 function);
444 err = HvCallXm_connectBusUnit(bus, sub_bus,
445 agent_id, 0);
446 if (err) {
447 if (err != 0x302)
448 DBG("connectBusUnit(%x, %x, %x) %x\n",
449 bus, sub_bus, agent_id, err);
450 continue;
451 }
452
453 err = HvCallPci_configLoad16(bus, sub_bus, agent_id,
454 PCI_VENDOR_ID, &vendor_id);
455 if (err) {
456 DBG("ReadVendor(%x, %x, %x) %x\n",
457 bus, sub_bus, agent_id, err);
458 continue;
459 }
460 err = HvCallPci_configLoad16(bus, sub_bus, agent_id,
461 PCI_DEVICE_ID, &device_id);
462 if (err) {
463 DBG("ReadDevice(%x, %x, %x) %x\n",
464 bus, sub_bus, agent_id, err);
465 continue;
466 }
467 err = HvCallPci_configLoad32(bus, sub_bus, agent_id,
468 PCI_CLASS_REVISION , &class_id);
469 if (err) {
470 DBG("ReadClass(%x, %x, %x) %x\n",
471 bus, sub_bus, agent_id, err);
472 continue;
473 }
474
475 devfn = PCI_DEVFN(ISERIES_ENCODE_DEVICE(eads_id_sel),
476 function);
477 cp = dt_find_pci_class_name(class_id >> 16);
478 if (cp && cp->name)
479 strncpy(buf, cp->name, sizeof(buf) - 1);
480 else
481 snprintf(buf, sizeof(buf), "pci%x,%x",
482 vendor_id, device_id);
483 buf[sizeof(buf) - 1] = '\0';
484 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
485 "@%x", PCI_SLOT(devfn));
486 buf[sizeof(buf) - 1] = '\0';
487 if (function != 0)
488 snprintf(buf + strlen(buf),
489 sizeof(buf) - strlen(buf),
490 ",%x", function);
491 dt_start_node(dt, buf);
492 reg[0] = (bus << 16) | (devfn << 8);
493 reg[1] = 0;
494 reg[2] = 0;
495 reg[3] = 0;
496 reg[4] = 0;
497 dt_prop_u32_list(dt, "reg", reg, 5);
498 if (cp && (cp->type || cp->name))
499 dt_prop_str(dt, "device_type",
500 cp->type ? cp->type : cp->name);
501 dt_prop_u32(dt, "vendor-id", vendor_id);
502 dt_prop_u32(dt, "device-id", device_id);
503 dt_prop_u32(dt, "class-code", class_id >> 8);
504 dt_prop_u32(dt, "revision-id", class_id & 0xff);
505 dt_prop_u32(dt, "linux,subbus", sub_bus);
506 dt_prop_u32(dt, "linux,agent-id", agent_id);
507 dt_prop_u32(dt, "linux,logical-slot-number",
508 bridge_info->logicalSlotNumber);
509 dt_end_node(dt);
510
511 }
512 }
513 }
514
515 static void __init scan_bridge(struct iseries_flat_dt *dt, HvBusNumber bus,
516 HvSubBusNumber sub_bus, int id_sel)
517 {
518 struct HvCallPci_BridgeInfo bridge_info;
519 HvAgentId agent_id;
520 int function;
521 int ret;
522
523 /* Note: hvSubBus and irq is always be 0 at this level! */
524 for (function = 0; function < 8; ++function) {
525 agent_id = ISERIES_PCI_AGENTID(id_sel, function);
526 ret = HvCallXm_connectBusUnit(bus, sub_bus, agent_id, 0);
527 if (ret != 0) {
528 if (ret != 0xb)
529 DBG("connectBusUnit(%x, %x, %x) %x\n",
530 bus, sub_bus, agent_id, ret);
531 continue;
532 }
533 DBG("found device at bus %d idsel %d func %d (AgentId %x)\n",
534 bus, id_sel, function, agent_id);
535 ret = HvCallPci_getBusUnitInfo(bus, sub_bus, agent_id,
536 iseries_hv_addr(&bridge_info),
537 sizeof(struct HvCallPci_BridgeInfo));
538 if (ret != 0)
539 continue;
540 DBG("bridge info: type %x subbus %x "
541 "maxAgents %x maxsubbus %x logslot %x\n",
542 bridge_info.busUnitInfo.deviceType,
543 bridge_info.subBusNumber,
544 bridge_info.maxAgents,
545 bridge_info.maxSubBusNumber,
546 bridge_info.logicalSlotNumber);
547 if (bridge_info.busUnitInfo.deviceType ==
548 HvCallPci_BridgeDevice)
549 scan_bridge_slot(dt, bus, &bridge_info);
550 else
551 DBG("PCI: Invalid Bridge Configuration(0x%02X)",
552 bridge_info.busUnitInfo.deviceType);
553 }
554 }
555
556 static void __init scan_phb(struct iseries_flat_dt *dt, HvBusNumber bus)
557 {
558 struct HvCallPci_DeviceInfo dev_info;
559 const HvSubBusNumber sub_bus = 0; /* EADs is always 0. */
560 int err;
561 int id_sel;
562 const int max_agents = 8;
563
564 /*
565 * Probe for EADs Bridges
566 */
567 for (id_sel = 1; id_sel < max_agents; ++id_sel) {
568 err = HvCallPci_getDeviceInfo(bus, sub_bus, id_sel,
569 iseries_hv_addr(&dev_info),
570 sizeof(struct HvCallPci_DeviceInfo));
571 if (err) {
572 if (err != 0x302)
573 DBG("getDeviceInfo(%x, %x, %x) %x\n",
574 bus, sub_bus, id_sel, err);
575 continue;
576 }
577 if (dev_info.deviceType != HvCallPci_NodeDevice) {
578 DBG("PCI: Invalid System Configuration"
579 "(0x%02X) for bus 0x%02x id 0x%02x.\n",
580 dev_info.deviceType, bus, id_sel);
581 continue;
582 }
583 scan_bridge(dt, bus, sub_bus, id_sel);
584 }
585 }
586
587 static void __init dt_pci_devices(struct iseries_flat_dt *dt)
588 {
589 HvBusNumber bus;
590 char buf[32];
591 u32 buses[2];
592 int phb_num = 0;
593
594 /* Check all possible buses. */
595 for (bus = 0; bus < 256; bus++) {
596 int err = HvCallXm_testBus(bus);
597
598 if (err) {
599 /*
600 * Check for Unexpected Return code, a clue that
601 * something has gone wrong.
602 */
603 if (err != 0x0301)
604 DBG("Unexpected Return on Probe(0x%02X) "
605 "0x%04X\n", bus, err);
606 continue;
607 }
608 DBG("bus %d appears to exist\n", bus);
609 snprintf(buf, 32, "pci@%d", phb_num);
610 dt_start_node(dt, buf);
611 dt_prop_str(dt, "device_type", device_type_pci);
612 dt_prop_str(dt, "compatible", "IBM,iSeries-Logical-PHB");
613 dt_prop_u32(dt, "#address-cells", 3);
614 dt_prop_u32(dt, "#size-cells", 2);
615 buses[0] = buses[1] = bus;
616 dt_prop_u32_list(dt, "bus-range", buses, 2);
617 scan_phb(dt, bus);
618 dt_end_node(dt);
619 phb_num++;
620 }
621 }
622
623 static void dt_finish(struct iseries_flat_dt *dt)
624 {
625 dt_push_u32(dt, OF_DT_END);
626 dt->header.totalsize = (unsigned long)dt_data - (unsigned long)dt;
627 klimit = ALIGN((unsigned long)dt_data, 8);
628 }
629
630 void * __init build_flat_dt(unsigned long phys_mem_size)
631 {
632 struct iseries_flat_dt *iseries_dt;
633 u64 tmp[2];
634
635 iseries_dt = dt_init();
636
637 dt_start_node(iseries_dt, "");
638
639 dt_prop_u32(iseries_dt, "#address-cells", 2);
640 dt_prop_u32(iseries_dt, "#size-cells", 2);
641 dt_model(iseries_dt);
642
643 /* /memory */
644 dt_start_node(iseries_dt, "memory@0");
645 dt_prop_str(iseries_dt, "device_type", device_type_memory);
646 tmp[0] = 0;
647 tmp[1] = phys_mem_size;
648 dt_prop_u64_list(iseries_dt, "reg", tmp, 2);
649 dt_end_node(iseries_dt);
650
651 /* /chosen */
652 dt_start_node(iseries_dt, "chosen");
653 dt_prop_str(iseries_dt, "bootargs", cmd_line);
654 dt_initrd(iseries_dt);
655 dt_end_node(iseries_dt);
656
657 dt_cpus(iseries_dt);
658
659 dt_vdevices(iseries_dt);
660 dt_pci_devices(iseries_dt);
661
662 dt_end_node(iseries_dt);
663
664 dt_finish(iseries_dt);
665
666 return iseries_dt;
667 }
Tomato firmware and modifications.