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authorStephen Rothwell <sfr@canb.auug.org.au>2006-05-19 03:00:04 -0400
committerPaul Mackerras <paulus@samba.org>2006-05-24 02:08:57 -0400
commitc81014f603db26e1ed818decebd3b594606e20a6 (patch)
tree8777dbf5e18f062c921a46929af996d953cf443e
parent9ceb19093b5e5f037c6b47df0607dd567283287d (diff)
[PATCH] powerpc: split device tree stuff out of iseries/setup.c
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat
-rw-r--r--arch/powerpc/platforms/iseries/Makefile2
-rw-r--r--arch/powerpc/platforms/iseries/dt.c618
-rw-r--r--arch/powerpc/platforms/iseries/setup.c578
-rw-r--r--arch/powerpc/platforms/iseries/setup.h2
4 files changed, 622 insertions, 578 deletions
diff --git a/arch/powerpc/platforms/iseries/Makefile b/arch/powerpc/platforms/iseries/Makefile
index 7e67a20c18..32306214a3 100644
--- a/arch/powerpc/platforms/iseries/Makefile
+++ b/arch/powerpc/platforms/iseries/Makefile
@@ -1,6 +1,6 @@
1EXTRA_CFLAGS += -mno-minimal-toc 1EXTRA_CFLAGS += -mno-minimal-toc
2 2
3obj-y += hvlog.o hvlpconfig.o lpardata.o setup.o mf.o lpevents.o \ 3obj-y += hvlog.o hvlpconfig.o lpardata.o setup.o dt.o mf.o lpevents.o \
4 hvcall.o proc.o htab.o iommu.o misc.o irq.o 4 hvcall.o proc.o htab.o iommu.o misc.o irq.o
5obj-$(CONFIG_PCI) += pci.o vpdinfo.o 5obj-$(CONFIG_PCI) += pci.o vpdinfo.o
6obj-$(CONFIG_SMP) += smp.o 6obj-$(CONFIG_SMP) += smp.o
diff --git a/arch/powerpc/platforms/iseries/dt.c b/arch/powerpc/platforms/iseries/dt.c
new file mode 100644
index 0000000000..93d4233e73
--- /dev/null
+++ b/arch/powerpc/platforms/iseries/dt.c
@@ -0,0 +1,618 @@
1/*
2 * Copyright (c) 2005-2006 Michael Ellerman, IBM Corporation
3 *
4 * Description:
5 * This file contains all the routines to build a flattened device
6 * tree for a legacy iSeries machine.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version
11 * 2 of the License, or (at your option) any later version.
12 */
13
14#undef DEBUG
15
16#include <linux/types.h>
17#include <linux/init.h>
18#include <linux/pci.h>
19#include <linux/pci_regs.h>
20#include <linux/pci_ids.h>
21#include <linux/threads.h>
22#include <linux/bitops.h>
23#include <linux/string.h>
24#include <linux/kernel.h>
25#include <linux/if_ether.h> /* ETH_ALEN */
26
27#include <asm/machdep.h>
28#include <asm/prom.h>
29#include <asm/lppaca.h>
30#include <asm/page.h>
31#include <asm/cputable.h>
32#include <asm/abs_addr.h>
33#include <asm/iseries/hv_types.h>
34#include <asm/iseries/hv_lp_config.h>
35#include <asm/iseries/hv_call_xm.h>
36#include <asm/iseries/it_exp_vpd_panel.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
44#ifdef DEBUG
45#define DBG(fmt...) udbg_printf(fmt)
46#else
47#define DBG(fmt...)
48#endif
49
50struct blob {
51 unsigned char data[PAGE_SIZE * 2];
52 unsigned long next;
53};
54
55struct iseries_flat_dt {
56 struct boot_param_header header;
57 u64 reserve_map[2];
58 struct blob dt;
59 struct blob strings;
60};
61
62static struct iseries_flat_dt iseries_dt;
63
64static void __init dt_init(struct iseries_flat_dt *dt)
65{
66 dt->header.off_mem_rsvmap =
67 offsetof(struct iseries_flat_dt, reserve_map);
68 dt->header.off_dt_struct = offsetof(struct iseries_flat_dt, dt);
69 dt->header.off_dt_strings = offsetof(struct iseries_flat_dt, strings);
70 dt->header.totalsize = sizeof(struct iseries_flat_dt);
71 dt->header.dt_strings_size = sizeof(struct blob);
72
73 /* There is no notion of hardware cpu id on iSeries */
74 dt->header.boot_cpuid_phys = smp_processor_id();
75
76 dt->dt.next = (unsigned long)&dt->dt.data;
77 dt->strings.next = (unsigned long)&dt->strings.data;
78
79 dt->header.magic = OF_DT_HEADER;
80 dt->header.version = 0x10;
81 dt->header.last_comp_version = 0x10;
82
83 dt->reserve_map[0] = 0;
84 dt->reserve_map[1] = 0;
85}
86
87static void __init dt_check_blob(struct blob *b)
88{
89 if (b->next >= (unsigned long)&b->next) {
90 DBG("Ran out of space in flat device tree blob!\n");
91 BUG();
92 }
93}
94
95static void __init dt_push_u32(struct iseries_flat_dt *dt, u32 value)
96{
97 *((u32*)dt->dt.next) = value;
98 dt->dt.next += sizeof(u32);
99
100 dt_check_blob(&dt->dt);
101}
102
103#ifdef notyet
104static void __init dt_push_u64(struct iseries_flat_dt *dt, u64 value)
105{
106 *((u64*)dt->dt.next) = value;
107 dt->dt.next += sizeof(u64);
108
109 dt_check_blob(&dt->dt);
110}
111#endif
112
113static unsigned long __init dt_push_bytes(struct blob *blob, char *data, int len)
114{
115 unsigned long start = blob->next - (unsigned long)blob->data;
116
117 memcpy((char *)blob->next, data, len);
118 blob->next = _ALIGN(blob->next + len, 4);
119
120 dt_check_blob(blob);
121
122 return start;
123}
124
125static void __init dt_start_node(struct iseries_flat_dt *dt, char *name)
126{
127 dt_push_u32(dt, OF_DT_BEGIN_NODE);
128 dt_push_bytes(&dt->dt, name, strlen(name) + 1);
129}
130
131#define dt_end_node(dt) dt_push_u32(dt, OF_DT_END_NODE)
132
133static void __init dt_prop(struct iseries_flat_dt *dt, char *name,
134 char *data, int len)
135{
136 unsigned long offset;
137
138 dt_push_u32(dt, OF_DT_PROP);
139
140 /* Length of the data */
141 dt_push_u32(dt, len);
142
143 /* Put the property name in the string blob. */
144 offset = dt_push_bytes(&dt->strings, name, strlen(name) + 1);
145
146 /* The offset of the properties name in the string blob. */
147 dt_push_u32(dt, (u32)offset);
148
149 /* The actual data. */
150 dt_push_bytes(&dt->dt, data, len);
151}
152
153static void __init dt_prop_str(struct iseries_flat_dt *dt, char *name,
154 char *data)
155{
156 dt_prop(dt, name, data, strlen(data) + 1); /* + 1 for NULL */
157}
158
159static void __init dt_prop_u32(struct iseries_flat_dt *dt, char *name, u32 data)
160{
161 dt_prop(dt, name, (char *)&data, sizeof(u32));
162}
163
164static void __init dt_prop_u64(struct iseries_flat_dt *dt, char *name, u64 data)
165{
166 dt_prop(dt, name, (char *)&data, sizeof(u64));
167}
168
169static void __init dt_prop_u64_list(struct iseries_flat_dt *dt, char *name,
170 u64 *data, int n)
171{
172 dt_prop(dt, name, (char *)data, sizeof(u64) * n);
173}
174
175static void __init dt_prop_u32_list(struct iseries_flat_dt *dt, char *name,
176 u32 *data, int n)
177{
178 dt_prop(dt, name, (char *)data, sizeof(u32) * n);
179}
180
181#ifdef notyet
182static void __init dt_prop_empty(struct iseries_flat_dt *dt, char *name)
183{
184 dt_prop(dt, name, NULL, 0);
185}
186#endif
187
188static void __init dt_cpus(struct iseries_flat_dt *dt)
189{
190 unsigned char buf[32];
191 unsigned char *p;
192 unsigned int i, index;
193 struct IoHriProcessorVpd *d;
194 u32 pft_size[2];
195
196 /* yuck */
197 snprintf(buf, 32, "PowerPC,%s", cur_cpu_spec->cpu_name);
198 p = strchr(buf, ' ');
199 if (!p) p = buf + strlen(buf);
200
201 dt_start_node(dt, "cpus");
202 dt_prop_u32(dt, "#address-cells", 1);
203 dt_prop_u32(dt, "#size-cells", 0);
204
205 pft_size[0] = 0; /* NUMA CEC cookie, 0 for non NUMA */
206 pft_size[1] = __ilog2(HvCallHpt_getHptPages() * HW_PAGE_SIZE);
207
208 for (i = 0; i < NR_CPUS; i++) {
209 if (lppaca[i].dyn_proc_status >= 2)
210 continue;
211
212 snprintf(p, 32 - (p - buf), "@%d", i);
213 dt_start_node(dt, buf);
214
215 dt_prop_str(dt, "device_type", "cpu");
216
217 index = lppaca[i].dyn_hv_phys_proc_index;
218 d = &xIoHriProcessorVpd[index];
219
220 dt_prop_u32(dt, "i-cache-size", d->xInstCacheSize * 1024);
221 dt_prop_u32(dt, "i-cache-line-size", d->xInstCacheOperandSize);
222
223 dt_prop_u32(dt, "d-cache-size", d->xDataL1CacheSizeKB * 1024);
224 dt_prop_u32(dt, "d-cache-line-size", d->xDataCacheOperandSize);
225
226 /* magic conversions to Hz copied from old code */
227 dt_prop_u32(dt, "clock-frequency",
228 ((1UL << 34) * 1000000) / d->xProcFreq);
229 dt_prop_u32(dt, "timebase-frequency",
230 ((1UL << 32) * 1000000) / d->xTimeBaseFreq);
231
232 dt_prop_u32(dt, "reg", i);
233
234 dt_prop_u32_list(dt, "ibm,pft-size", pft_size, 2);
235
236 dt_end_node(dt);
237 }
238
239 dt_end_node(dt);
240}
241
242static void __init dt_model(struct iseries_flat_dt *dt)
243{
244 char buf[16] = "IBM,";
245
246 /* "IBM," + mfgId[2:3] + systemSerial[1:5] */
247 strne2a(buf + 4, xItExtVpdPanel.mfgID + 2, 2);
248 strne2a(buf + 6, xItExtVpdPanel.systemSerial + 1, 5);
249 buf[11] = '\0';
250 dt_prop_str(dt, "system-id", buf);
251
252 /* "IBM," + machineType[0:4] */
253 strne2a(buf + 4, xItExtVpdPanel.machineType, 4);
254 buf[8] = '\0';
255 dt_prop_str(dt, "model", buf);
256
257 dt_prop_str(dt, "compatible", "IBM,iSeries");
258}
259
260static void __init dt_vdevices(struct iseries_flat_dt *dt)
261{
262 u32 reg = 0;
263 HvLpIndexMap vlan_map;
264 int i;
265 char buf[32];
266
267 dt_start_node(dt, "vdevice");
268 dt_prop_str(dt, "device_type", "vdevice");
269 dt_prop_str(dt, "compatible", "IBM,iSeries-vdevice");
270 dt_prop_u32(dt, "#address-cells", 1);
271 dt_prop_u32(dt, "#size-cells", 0);
272
273 snprintf(buf, sizeof(buf), "vty@%08x", reg);
274 dt_start_node(dt, buf);
275 dt_prop_str(dt, "device_type", "serial");
276 dt_prop_u32(dt, "reg", reg);
277 dt_end_node(dt);
278 reg++;
279
280 snprintf(buf, sizeof(buf), "v-scsi@%08x", reg);
281 dt_start_node(dt, buf);
282 dt_prop_str(dt, "device_type", "vscsi");
283 dt_prop_str(dt, "compatible", "IBM,v-scsi");
284 dt_prop_u32(dt, "reg", reg);
285 dt_end_node(dt);
286 reg++;
287
288 vlan_map = HvLpConfig_getVirtualLanIndexMap();
289 for (i = 0; i < HVMAXARCHITECTEDVIRTUALLANS; i++) {
290 unsigned char mac_addr[ETH_ALEN];
291
292 if ((vlan_map & (0x8000 >> i)) == 0)
293 continue;
294 snprintf(buf, 32, "l-lan@%08x", reg + i);
295 dt_start_node(dt, buf);
296 dt_prop_str(dt, "device_type", "network");
297 dt_prop_str(dt, "compatible", "IBM,iSeries-l-lan");
298 dt_prop_u32(dt, "reg", reg + i);
299 dt_prop_u32(dt, "linux,unit_address", i);
300
301 mac_addr[0] = 0x02;
302 mac_addr[1] = 0x01;
303 mac_addr[2] = 0xff;
304 mac_addr[3] = i;
305 mac_addr[4] = 0xff;
306 mac_addr[5] = HvLpConfig_getLpIndex_outline();
307 dt_prop(dt, "local-mac-address", (char *)mac_addr, ETH_ALEN);
308 dt_prop(dt, "mac-address", (char *)mac_addr, ETH_ALEN);
309 dt_prop_u32(dt, "max-frame-size", 9000);
310 dt_prop_u32(dt, "address-bits", 48);
311
312 dt_end_node(dt);
313 }
314 reg += HVMAXARCHITECTEDVIRTUALLANS;
315
316 for (i = 0; i < HVMAXARCHITECTEDVIRTUALDISKS; i++) {
317 snprintf(buf, 32, "viodasd@%08x", reg + i);
318 dt_start_node(dt, buf);
319 dt_prop_str(dt, "device_type", "block");
320 dt_prop_str(dt, "compatible", "IBM,iSeries-viodasd");
321 dt_prop_u32(dt, "reg", reg + i);
322 dt_prop_u32(dt, "linux,unit_address", i);
323 dt_end_node(dt);
324 }
325 reg += HVMAXARCHITECTEDVIRTUALDISKS;
326 for (i = 0; i < HVMAXARCHITECTEDVIRTUALCDROMS; i++) {
327 snprintf(buf, 32, "viocd@%08x", reg + i);
328 dt_start_node(dt, buf);
329 dt_prop_str(dt, "device_type", "block");
330 dt_prop_str(dt, "compatible", "IBM,iSeries-viocd");
331 dt_prop_u32(dt, "reg", reg + i);
332 dt_prop_u32(dt, "linux,unit_address", i);
333 dt_end_node(dt);
334 }
335 reg += HVMAXARCHITECTEDVIRTUALCDROMS;
336 for (i = 0; i < HVMAXARCHITECTEDVIRTUALTAPES; i++) {
337 snprintf(buf, 32, "viotape@%08x", reg + i);
338 dt_start_node(dt, buf);
339 dt_prop_str(dt, "device_type", "byte");
340 dt_prop_str(dt, "compatible", "IBM,iSeries-viotape");
341 dt_prop_u32(dt, "reg", reg + i);
342 dt_prop_u32(dt, "linux,unit_address", i);
343 dt_end_node(dt);
344 }
345
346 dt_end_node(dt);
347}
348
349struct pci_class_name {
350 u16 code;
351 char *name;
352 char *type;
353};
354
355static struct pci_class_name __initdata pci_class_name[] = {
356 { PCI_CLASS_NETWORK_ETHERNET, "ethernet", "network" },
357};
358
359static struct pci_class_name * __init dt_find_pci_class_name(u16 class_code)
360{
361 struct pci_class_name *cp;
362
363 for (cp = pci_class_name;
364 cp < &pci_class_name[ARRAY_SIZE(pci_class_name)]; cp++)
365 if (cp->code == class_code)
366 return cp;
367 return NULL;
368}
369
370/*
371 * This assumes that the node slot is always on the primary bus!
372 */
373static void __init scan_bridge_slot(struct iseries_flat_dt *dt,
374 HvBusNumber bus, struct HvCallPci_BridgeInfo *bridge_info)
375{
376 HvSubBusNumber sub_bus = bridge_info->subBusNumber;
377 u16 vendor_id;
378 u16 device_id;
379 u32 class_id;
380 int err;
381 char buf[32];
382 u32 reg[5];
383 int id_sel = ISERIES_GET_DEVICE_FROM_SUBBUS(sub_bus);
384 int function = ISERIES_GET_FUNCTION_FROM_SUBBUS(sub_bus);
385 HvAgentId eads_id_sel = ISERIES_PCI_AGENTID(id_sel, function);
386 u8 devfn;
387 struct pci_class_name *cp;
388
389 /*
390 * Connect all functions of any device found.
391 */
392 for (id_sel = 1; id_sel <= bridge_info->maxAgents; id_sel++) {
393 for (function = 0; function < 8; function++) {
394 HvAgentId agent_id = ISERIES_PCI_AGENTID(id_sel,
395 function);
396 err = HvCallXm_connectBusUnit(bus, sub_bus,
397 agent_id, 0);
398 if (err) {
399 if (err != 0x302)
400 printk(KERN_DEBUG
401 "connectBusUnit(%x, %x, %x) "
402 "== %x\n",
403 bus, sub_bus, agent_id, err);
404 continue;
405 }
406
407 err = HvCallPci_configLoad16(bus, sub_bus, agent_id,
408 PCI_VENDOR_ID, &vendor_id);
409 if (err) {
410 printk(KERN_DEBUG
411 "ReadVendor(%x, %x, %x) == %x\n",
412 bus, sub_bus, agent_id, err);
413 continue;
414 }
415 err = HvCallPci_configLoad16(bus, sub_bus, agent_id,
416 PCI_DEVICE_ID, &device_id);
417 if (err) {
418 printk(KERN_DEBUG
419 "ReadDevice(%x, %x, %x) == %x\n",
420 bus, sub_bus, agent_id, err);
421 continue;
422 }
423 err = HvCallPci_configLoad32(bus, sub_bus, agent_id,
424 PCI_CLASS_REVISION , &class_id);
425 if (err) {
426 printk(KERN_DEBUG
427 "ReadClass(%x, %x, %x) == %x\n",
428 bus, sub_bus, agent_id, err);
429 continue;
430 }
431
432 devfn = PCI_DEVFN(ISERIES_ENCODE_DEVICE(eads_id_sel),
433 function);
434 cp = dt_find_pci_class_name(class_id >> 16);
435 if (cp && cp->name)
436 strncpy(buf, cp->name, sizeof(buf) - 1);
437 else
438 snprintf(buf, sizeof(buf), "pci%x,%x",
439 vendor_id, device_id);
440 buf[sizeof(buf) - 1] = '\0';
441 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
442 "@%x", PCI_SLOT(devfn));
443 buf[sizeof(buf) - 1] = '\0';
444 if (function != 0)
445 snprintf(buf + strlen(buf),
446 sizeof(buf) - strlen(buf),
447 ",%x", function);
448 dt_start_node(dt, buf);
449 reg[0] = (bus << 16) | (devfn << 8);
450 reg[1] = 0;
451 reg[2] = 0;
452 reg[3] = 0;
453 reg[4] = 0;
454 dt_prop_u32_list(dt, "reg", reg, 5);
455 if (cp && (cp->type || cp->name))
456 dt_prop_str(dt, "device_type",
457 cp->type ? cp->type : cp->name);
458 dt_prop_u32(dt, "vendor-id", vendor_id);
459 dt_prop_u32(dt, "device-id", device_id);
460 dt_prop_u32(dt, "class-code", class_id >> 8);
461 dt_prop_u32(dt, "revision-id", class_id & 0xff);
462 dt_prop_u32(dt, "linux,subbus", sub_bus);
463 dt_prop_u32(dt, "linux,agent-id", agent_id);
464 dt_prop_u32(dt, "linux,logical-slot-number",
465 bridge_info->logicalSlotNumber);
466 dt_end_node(dt);
467
468 }
469 }
470}
471
472static void __init scan_bridge(struct iseries_flat_dt *dt, HvBusNumber bus,
473 HvSubBusNumber sub_bus, int id_sel)
474{
475 struct HvCallPci_BridgeInfo bridge_info;
476 HvAgentId agent_id;
477 int function;
478 int ret;
479
480 /* Note: hvSubBus and irq is always be 0 at this level! */
481 for (function = 0; function < 8; ++function) {
482 agent_id = ISERIES_PCI_AGENTID(id_sel, function);
483 ret = HvCallXm_connectBusUnit(bus, sub_bus, agent_id, 0);
484 if (ret != 0) {
485 if (ret != 0xb)
486 printk(KERN_DEBUG "connectBusUnit(%x, %x, %x) "
487 "== %x\n",
488 bus, sub_bus, agent_id, ret);
489 continue;
490 }
491 printk("found device at bus %d idsel %d func %d (AgentId %x)\n",
492 bus, id_sel, function, agent_id);
493 ret = HvCallPci_getBusUnitInfo(bus, sub_bus, agent_id,
494 iseries_hv_addr(&bridge_info),
495 sizeof(struct HvCallPci_BridgeInfo));
496 if (ret != 0)
497 continue;
498 printk("bridge info: type %x subbus %x "
499 "maxAgents %x maxsubbus %x logslot %x\n",
500 bridge_info.busUnitInfo.deviceType,
501 bridge_info.subBusNumber,
502 bridge_info.maxAgents,
503 bridge_info.maxSubBusNumber,
504 bridge_info.logicalSlotNumber);
505 if (bridge_info.busUnitInfo.deviceType ==
506 HvCallPci_BridgeDevice)
507 scan_bridge_slot(dt, bus, &bridge_info);
508 else
509 printk("PCI: Invalid Bridge Configuration(0x%02X)",
510 bridge_info.busUnitInfo.deviceType);
511 }
512}
513
514static void __init scan_phb(struct iseries_flat_dt *dt, HvBusNumber bus)
515{
516 struct HvCallPci_DeviceInfo dev_info;
517 const HvSubBusNumber sub_bus = 0; /* EADs is always 0. */
518 int err;
519 int id_sel;
520 const int max_agents = 8;
521
522 /*
523 * Probe for EADs Bridges
524 */
525 for (id_sel = 1; id_sel < max_agents; ++id_sel) {
526 err = HvCallPci_getDeviceInfo(bus, sub_bus, id_sel,
527 iseries_hv_addr(&dev_info),
528 sizeof(struct HvCallPci_DeviceInfo));
529 if (err) {
530 if (err != 0x302)
531 printk(KERN_DEBUG "getDeviceInfo(%x, %x, %x) "
532 "== %x\n",
533 bus, sub_bus, id_sel, err);
534 continue;
535 }
536 if (dev_info.deviceType != HvCallPci_NodeDevice) {
537 printk(KERN_DEBUG "PCI: Invalid System Configuration"
538 "(0x%02X) for bus 0x%02x id 0x%02x.\n",
539 dev_info.deviceType, bus, id_sel);
540 continue;
541 }
542 scan_bridge(dt, bus, sub_bus, id_sel);
543 }
544}
545
546static void __init dt_pci_devices(struct iseries_flat_dt *dt)
547{
548 HvBusNumber bus;
549 char buf[32];
550 u32 buses[2];
551 int phb_num = 0;
552
553 /* Check all possible buses. */
554 for (bus = 0; bus < 256; bus++) {
555 int err = HvCallXm_testBus(bus);
556
557 if (err) {
558 /*
559 * Check for Unexpected Return code, a clue that
560 * something has gone wrong.
561 */
562 if (err != 0x0301)
563 printk(KERN_ERR "Unexpected Return on Probe"
564 "(0x%02X): 0x%04X", bus, err);
565 continue;
566 }
567 printk("bus %d appears to exist\n", bus);
568 snprintf(buf, 32, "pci@%d", phb_num);
569 dt_start_node(dt, buf);
570 dt_prop_str(dt, "device_type", "pci");
571 dt_prop_str(dt, "compatible", "IBM,iSeries-Logical-PHB");
572 dt_prop_u32(dt, "#address-cells", 3);
573 dt_prop_u32(dt, "#size-cells", 2);
574 buses[0] = buses[1] = bus;
575 dt_prop_u32_list(dt, "bus-range", buses, 2);
576 scan_phb(dt, bus);
577 dt_end_node(dt);
578 phb_num++;
579 }
580}
581
582void * __init build_flat_dt(unsigned long phys_mem_size)
583{
584 u64 tmp[2];
585
586 dt_init(&iseries_dt);
587
588 dt_start_node(&iseries_dt, "");
589
590 dt_prop_u32(&iseries_dt, "#address-cells", 2);
591 dt_prop_u32(&iseries_dt, "#size-cells", 2);
592 dt_model(&iseries_dt);
593
594 /* /memory */
595 dt_start_node(&iseries_dt, "memory@0");
596 dt_prop_str(&iseries_dt, "name", "memory");
597 dt_prop_str(&iseries_dt, "device_type", "memory");
598 tmp[0] = 0;
599 tmp[1] = phys_mem_size;
600 dt_prop_u64_list(&iseries_dt, "reg", tmp, 2);
601 dt_end_node(&iseries_dt);
602
603 /* /chosen */
604 dt_start_node(&iseries_dt, "chosen");
605 dt_prop_str(&iseries_dt, "bootargs", cmd_line);
606 dt_end_node(&iseries_dt);
607
608 dt_cpus(&iseries_dt);
609
610 dt_vdevices(&iseries_dt);
611 dt_pci_devices(&iseries_dt);
612
613 dt_end_node(&iseries_dt);
614
615 dt_push_u32(&iseries_dt, OF_DT_END);
616
617 return &iseries_dt;
618}
diff --git a/arch/powerpc/platforms/iseries/setup.c b/arch/powerpc/platforms/iseries/setup.c
index 5661bd0d42..617c724c45 100644
--- a/arch/powerpc/platforms/iseries/setup.c
+++ b/arch/powerpc/platforms/iseries/setup.c
@@ -28,7 +28,6 @@
28#include <linux/major.h> 28#include <linux/major.h>
29#include <linux/root_dev.h> 29#include <linux/root_dev.h>
30#include <linux/kernel.h> 30#include <linux/kernel.h>
31#include <linux/if_ether.h> /* ETH_ALEN */
32 31
33#include <asm/processor.h> 32#include <asm/processor.h>
34#include <asm/machdep.h> 33#include <asm/machdep.h>
@@ -46,13 +45,11 @@
46#include <asm/cache.h> 45#include <asm/cache.h>
47#include <asm/sections.h> 46#include <asm/sections.h>
48#include <asm/abs_addr.h> 47#include <asm/abs_addr.h>
49#include <asm/iseries/hv_types.h>
50#include <asm/iseries/hv_lp_config.h> 48#include <asm/iseries/hv_lp_config.h>
51#include <asm/iseries/hv_call_event.h> 49#include <asm/iseries/hv_call_event.h>
52#include <asm/iseries/hv_call_xm.h> 50#include <asm/iseries/hv_call_xm.h>
53#include <asm/iseries/it_lp_queue.h> 51#include <asm/iseries/it_lp_queue.h>
54#include <asm/iseries/mf.h> 52#include <asm/iseries/mf.h>
55#include <asm/iseries/it_exp_vpd_panel.h>
56#include <asm/iseries/hv_lp_event.h> 53#include <asm/iseries/hv_lp_event.h>
57#include <asm/iseries/lpar_map.h> 54#include <asm/iseries/lpar_map.h>
58#include <asm/udbg.h> 55#include <asm/udbg.h>
@@ -66,8 +63,6 @@
66#include "main_store.h" 63#include "main_store.h"
67#include "call_sm.h" 64#include "call_sm.h"
68#include "call_hpt.h" 65#include "call_hpt.h"
69#include "call_pci.h"
70#include "pci.h"
71 66
72#ifdef DEBUG 67#ifdef DEBUG
73#define DBG(fmt...) udbg_printf(fmt) 68#define DBG(fmt...) udbg_printf(fmt)
@@ -711,575 +706,6 @@ define_machine(iseries) {
711 /* XXX Implement enable_pmcs for iSeries */ 706 /* XXX Implement enable_pmcs for iSeries */
712}; 707};
713 708
714struct blob {
715 unsigned char data[PAGE_SIZE * 2];
716 unsigned long next;
717};
718
719struct iseries_flat_dt {
720 struct boot_param_header header;
721 u64 reserve_map[2];
722 struct blob dt;
723 struct blob strings;
724};
725
726static struct iseries_flat_dt iseries_dt;
727
728static void __init dt_init(struct iseries_flat_dt *dt)
729{
730 dt->header.off_mem_rsvmap =
731 offsetof(struct iseries_flat_dt, reserve_map);
732 dt->header.off_dt_struct = offsetof(struct iseries_flat_dt, dt);
733 dt->header.off_dt_strings = offsetof(struct iseries_flat_dt, strings);
734 dt->header.totalsize = sizeof(struct iseries_flat_dt);
735 dt->header.dt_strings_size = sizeof(struct blob);
736
737 /* There is no notion of hardware cpu id on iSeries */
738 dt->header.boot_cpuid_phys = smp_processor_id();
739
740 dt->dt.next = (unsigned long)&dt->dt.data;
741 dt->strings.next = (unsigned long)&dt->strings.data;
742
743 dt->header.magic = OF_DT_HEADER;
744 dt->header.version = 0x10;
745 dt->header.last_comp_version = 0x10;
746
747 dt->reserve_map[0] = 0;
748 dt->reserve_map[1] = 0;
749}
750
751static void __init dt_check_blob(struct blob *b)
752{
753 if (b->next >= (unsigned long)&b->next) {
754 DBG("Ran out of space in flat device tree blob!\n");
755 BUG();
756 }
757}
758
759static void __init dt_push_u32(struct iseries_flat_dt *dt, u32 value)
760{
761 *((u32*)dt->dt.next) = value;
762 dt->dt.next += sizeof(u32);
763
764 dt_check_blob(&dt->dt);
765}
766
767#ifdef notyet
768static void __init dt_push_u64(struct iseries_flat_dt *dt, u64 value)
769{
770 *((u64*)dt->dt.next) = value;
771 dt->dt.next += sizeof(u64);
772
773 dt_check_blob(&dt->dt);
774}
775#endif
776
777static unsigned long __init dt_push_bytes(struct blob *blob, char *data, int len)
778{
779 unsigned long start = blob->next - (unsigned long)blob->data;
780
781 memcpy((char *)blob->next, data, len);
782 blob->next = _ALIGN(blob->next + len, 4);
783
784 dt_check_blob(blob);
785
786 return start;
787}
788
789static void __init dt_start_node(struct iseries_flat_dt *dt, char *name)
790{
791 dt_push_u32(dt, OF_DT_BEGIN_NODE);
792 dt_push_bytes(&dt->dt, name, strlen(name) + 1);
793}
794
795#define dt_end_node(dt) dt_push_u32(dt, OF_DT_END_NODE)
796
797static void __init dt_prop(struct iseries_flat_dt *dt, char *name,
798 char *data, int len)
799{
800 unsigned long offset;
801
802 dt_push_u32(dt, OF_DT_PROP);
803
804 /* Length of the data */
805 dt_push_u32(dt, len);
806
807 /* Put the property name in the string blob. */
808 offset = dt_push_bytes(&dt->strings, name, strlen(name) + 1);
809
810 /* The offset of the properties name in the string blob. */
811 dt_push_u32(dt, (u32)offset);
812
813 /* The actual data. */
814 dt_push_bytes(&dt->dt, data, len);
815}
816
817static void __init dt_prop_str(struct iseries_flat_dt *dt, char *name,
818 char *data)
819{
820 dt_prop(dt, name, data, strlen(data) + 1); /* + 1 for NULL */
821}
822
823static void __init dt_prop_u32(struct iseries_flat_dt *dt, char *name, u32 data)
824{
825 dt_prop(dt, name, (char *)&data, sizeof(u32));
826}
827
828static void __init dt_prop_u64(struct iseries_flat_dt *dt, char *name, u64 data)
829{
830 dt_prop(dt, name, (char *)&data, sizeof(u64));
831}
832
833static void __init dt_prop_u64_list(struct iseries_flat_dt *dt, char *name,
834 u64 *data, int n)
835{
836 dt_prop(dt, name, (char *)data, sizeof(u64) * n);
837}
838
839static void __init dt_prop_u32_list(struct iseries_flat_dt *dt, char *name,
840 u32 *data, int n)
841{
842 dt_prop(dt, name, (char *)data, sizeof(u32) * n);
843}
844
845#ifdef notyet
846static void __init dt_prop_empty(struct iseries_flat_dt *dt, char *name)
847{
848 dt_prop(dt, name, NULL, 0);
849}
850#endif
851
852static void __init dt_cpus(struct iseries_flat_dt *dt)
853{
854 unsigned char buf[32];
855 unsigned char *p;
856 unsigned int i, index;
857 struct IoHriProcessorVpd *d;
858 u32 pft_size[2];
859
860 /* yuck */
861 snprintf(buf, 32, "PowerPC,%s", cur_cpu_spec->cpu_name);
862 p = strchr(buf, ' ');
863 if (!p) p = buf + strlen(buf);
864
865 dt_start_node(dt, "cpus");
866 dt_prop_u32(dt, "#address-cells", 1);
867 dt_prop_u32(dt, "#size-cells", 0);
868
869 pft_size[0] = 0; /* NUMA CEC cookie, 0 for non NUMA */
870 pft_size[1] = __ilog2(HvCallHpt_getHptPages() * HW_PAGE_SIZE);
871
872 for (i = 0; i < NR_CPUS; i++) {
873 if (lppaca[i].dyn_proc_status >= 2)
874 continue;
875
876 snprintf(p, 32 - (p - buf), "@%d", i);
877 dt_start_node(dt, buf);
878
879 dt_prop_str(dt, "device_type", "cpu");
880
881 index = lppaca[i].dyn_hv_phys_proc_index;
882 d = &xIoHriProcessorVpd[index];
883
884 dt_prop_u32(dt, "i-cache-size", d->xInstCacheSize * 1024);
885 dt_prop_u32(dt, "i-cache-line-size", d->xInstCacheOperandSize);
886
887 dt_prop_u32(dt, "d-cache-size", d->xDataL1CacheSizeKB * 1024);
888 dt_prop_u32(dt, "d-cache-line-size", d->xDataCacheOperandSize);
889
890 /* magic conversions to Hz copied from old code */
891 dt_prop_u32(dt, "clock-frequency",
892 ((1UL << 34) * 1000000) / d->xProcFreq);
893 dt_prop_u32(dt, "timebase-frequency",
894 ((1UL << 32) * 1000000) / d->xTimeBaseFreq);
895
896 dt_prop_u32(dt, "reg", i);
897
898 dt_prop_u32_list(dt, "ibm,pft-size", pft_size, 2);
899
900 dt_end_node(dt);
901 }
902
903 dt_end_node(dt);
904}
905
906static void __init dt_model(struct iseries_flat_dt *dt)
907{
908 char buf[16] = "IBM,";
909
910 /* "IBM," + mfgId[2:3] + systemSerial[1:5] */
911 strne2a(buf + 4, xItExtVpdPanel.mfgID + 2, 2);
912 strne2a(buf + 6, xItExtVpdPanel.systemSerial + 1, 5);
913 buf[11] = '\0';
914 dt_prop_str(dt, "system-id", buf);
915
916 /* "IBM," + machineType[0:4] */
917 strne2a(buf + 4, xItExtVpdPanel.machineType, 4);
918 buf[8] = '\0';
919 dt_prop_str(dt, "model", buf);
920
921 dt_prop_str(dt, "compatible", "IBM,iSeries");
922}
923
924static void __init dt_vdevices(struct iseries_flat_dt *dt)
925{
926 u32 reg = 0;
927 HvLpIndexMap vlan_map;
928 int i;
929 char buf[32];
930
931 dt_start_node(dt, "vdevice");
932 dt_prop_str(dt, "device_type", "vdevice");
933 dt_prop_str(dt, "compatible", "IBM,iSeries-vdevice");
934 dt_prop_u32(dt, "#address-cells", 1);
935 dt_prop_u32(dt, "#size-cells", 0);
936
937 snprintf(buf, sizeof(buf), "vty@%08x", reg);
938 dt_start_node(dt, buf);
939 dt_prop_str(dt, "device_type", "serial");
940 dt_prop_u32(dt, "reg", reg);
941 dt_end_node(dt);
942 reg++;
943
944 snprintf(buf, sizeof(buf), "v-scsi@%08x", reg);
945 dt_start_node(dt, buf);
946 dt_prop_str(dt, "device_type", "vscsi");
947 dt_prop_str(dt, "compatible", "IBM,v-scsi");
948 dt_prop_u32(dt, "reg", reg);
949 dt_end_node(dt);
950 reg++;
951
952 vlan_map = HvLpConfig_getVirtualLanIndexMap();
953 for (i = 0; i < HVMAXARCHITECTEDVIRTUALLANS; i++) {
954 unsigned char mac_addr[ETH_ALEN];
955
956 if ((vlan_map & (0x8000 >> i)) == 0)
957 continue;
958 snprintf(buf, 32, "l-lan@%08x", reg + i);
959 dt_start_node(dt, buf);
960 dt_prop_str(dt, "device_type", "network");
961 dt_prop_str(dt, "compatible", "IBM,iSeries-l-lan");
962 dt_prop_u32(dt, "reg", reg + i);
963 dt_prop_u32(dt, "linux,unit_address", i);
964
965 mac_addr[0] = 0x02;
966 mac_addr[1] = 0x01;
967 mac_addr[2] = 0xff;
968 mac_addr[3] = i;
969 mac_addr[4] = 0xff;
970 mac_addr[5] = HvLpConfig_getLpIndex_outline();
971 dt_prop(dt, "local-mac-address", (char *)mac_addr, ETH_ALEN);
972 dt_prop(dt, "mac-address", (char *)mac_addr, ETH_ALEN);
973 dt_prop_u32(dt, "max-frame-size", 9000);
974 dt_prop_u32(dt, "address-bits", 48);
975
976 dt_end_node(dt);
977 }
978 reg += HVMAXARCHITECTEDVIRTUALLANS;
979
980 for (i = 0; i < HVMAXARCHITECTEDVIRTUALDISKS; i++) {
981 snprintf(buf, 32, "viodasd@%08x", reg + i);
982 dt_start_node(dt, buf);
983 dt_prop_str(dt, "device_type", "block");
984 dt_prop_str(dt, "compatible", "IBM,iSeries-viodasd");
985 dt_prop_u32(dt, "reg", reg + i);
986 dt_prop_u32(dt, "linux,unit_address", i);
987 dt_end_node(dt);
988 }
989 reg += HVMAXARCHITECTEDVIRTUALDISKS;
990 for (i = 0; i < HVMAXARCHITECTEDVIRTUALCDROMS; i++) {
991 snprintf(buf, 32, "viocd@%08x", reg + i);
992 dt_start_node(dt, buf);
993 dt_prop_str(dt, "device_type", "block");
994 dt_prop_str(dt, "compatible", "IBM,iSeries-viocd");
995 dt_prop_u32(dt, "reg", reg + i);
996 dt_prop_u32(dt, "linux,unit_address", i);
997 dt_end_node(dt);
998 }
999 reg += HVMAXARCHITECTEDVIRTUALCDROMS;
1000 for (i = 0; i < HVMAXARCHITECTEDVIRTUALTAPES; i++) {
1001 snprintf(buf, 32, "viotape@%08x", reg + i);
1002 dt_start_node(dt, buf);
1003 dt_prop_str(dt, "device_type", "byte");
1004 dt_prop_str(dt, "compatible", "IBM,iSeries-viotape");
1005 dt_prop_u32(dt, "reg", reg + i);
1006 dt_prop_u32(dt, "linux,unit_address", i);
1007 dt_end_node(dt);
1008 }
1009
1010 dt_end_node(dt);
1011}
1012
1013struct pci_class_name {
1014 u16 code;
1015 char *name;
1016 char *type;
1017};
1018
1019static struct pci_class_name __initdata pci_class_name[] = {
1020 { PCI_CLASS_NETWORK_ETHERNET, "ethernet", "network" },
1021};
1022
1023static struct pci_class_name * __init dt_find_pci_class_name(u16 class_code)
1024{
1025 struct pci_class_name *cp;
1026
1027 for (cp = pci_class_name;
1028 cp < &pci_class_name[ARRAY_SIZE(pci_class_name)]; cp++)
1029 if (cp->code == class_code)
1030 return cp;
1031 return NULL;
1032}
1033
1034/*
1035 * This assumes that the node slot is always on the primary bus!
1036 */
1037static void __init scan_bridge_slot(struct iseries_flat_dt *dt,
1038 HvBusNumber bus, struct HvCallPci_BridgeInfo *bridge_info)
1039{
1040 HvSubBusNumber sub_bus = bridge_info->subBusNumber;
1041 u16 vendor_id;
1042 u16 device_id;
1043 u32 class_id;
1044 int err;
1045 char buf[32];
1046 u32 reg[5];
1047 int id_sel = ISERIES_GET_DEVICE_FROM_SUBBUS(sub_bus);
1048 int function = ISERIES_GET_FUNCTION_FROM_SUBBUS(sub_bus);
1049 HvAgentId eads_id_sel = ISERIES_PCI_AGENTID(id_sel, function);
1050 u8 devfn;
1051 struct pci_class_name *cp;
1052
1053 /*
1054 * Connect all functions of any device found.
1055 */
1056 for (id_sel = 1; id_sel <= bridge_info->maxAgents; id_sel++) {
1057 for (function = 0; function < 8; function++) {
1058 HvAgentId agent_id = ISERIES_PCI_AGENTID(id_sel,
1059 function);
1060 err = HvCallXm_connectBusUnit(bus, sub_bus,
1061 agent_id, 0);
1062 if (err) {
1063 if (err != 0x302)
1064 printk(KERN_DEBUG
1065 "connectBusUnit(%x, %x, %x) "
1066 "== %x\n",
1067 bus, sub_bus, agent_id, err);
1068 continue;
1069 }
1070
1071 err = HvCallPci_configLoad16(bus, sub_bus, agent_id,
1072 PCI_VENDOR_ID, &vendor_id);
1073 if (err) {
1074 printk(KERN_DEBUG
1075 "ReadVendor(%x, %x, %x) == %x\n",
1076 bus, sub_bus, agent_id, err);
1077 continue;
1078 }
1079 err = HvCallPci_configLoad16(bus, sub_bus, agent_id,
1080 PCI_DEVICE_ID, &device_id);
1081 if (err) {
1082 printk(KERN_DEBUG
1083 "ReadDevice(%x, %x, %x) == %x\n",
1084 bus, sub_bus, agent_id, err);
1085 continue;
1086 }
1087 err = HvCallPci_configLoad32(bus, sub_bus, agent_id,
1088 PCI_CLASS_REVISION , &class_id);
1089 if (err) {
1090 printk(KERN_DEBUG
1091 "ReadClass(%x, %x, %x) == %x\n",
1092 bus, sub_bus, agent_id, err);
1093 continue;
1094 }
1095
1096 devfn = PCI_DEVFN(ISERIES_ENCODE_DEVICE(eads_id_sel),
1097 function);
1098 cp = dt_find_pci_class_name(class_id >> 16);
1099 if (cp && cp->name)
1100 strncpy(buf, cp->name, sizeof(buf) - 1);
1101 else
1102 snprintf(buf, sizeof(buf), "pci%x,%x",
1103 vendor_id, device_id);
1104 buf[sizeof(buf) - 1] = '\0';
1105 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1106 "@%x", PCI_SLOT(devfn));
1107 buf[sizeof(buf) - 1] = '\0';
1108 if (function != 0)
1109 snprintf(buf + strlen(buf),
1110 sizeof(buf) - strlen(buf),
1111 ",%x", function);
1112 dt_start_node(dt, buf);
1113 reg[0] = (bus << 16) | (devfn << 8);
1114 reg[1] = 0;
1115 reg[2] = 0;
1116 reg[3] = 0;
1117 reg[4] = 0;
1118 dt_prop_u32_list(dt, "reg", reg, 5);
1119 if (cp && (cp->type || cp->name))
1120 dt_prop_str(dt, "device_type",
1121 cp->type ? cp->type : cp->name);
1122 dt_prop_u32(dt, "vendor-id", vendor_id);
1123 dt_prop_u32(dt, "device-id", device_id);
1124 dt_prop_u32(dt, "class-code", class_id >> 8);
1125 dt_prop_u32(dt, "revision-id", class_id & 0xff);
1126 dt_prop_u32(dt, "linux,subbus", sub_bus);
1127 dt_prop_u32(dt, "linux,agent-id", agent_id);
1128 dt_prop_u32(dt, "linux,logical-slot-number",
1129 bridge_info->logicalSlotNumber);
1130 dt_end_node(dt);
1131
1132 }
1133 }
1134}
1135
1136static void __init scan_bridge(struct iseries_flat_dt *dt, HvBusNumber bus,
1137 HvSubBusNumber sub_bus, int id_sel)
1138{
1139 struct HvCallPci_BridgeInfo bridge_info;
1140 HvAgentId agent_id;
1141 int function;
1142 int ret;
1143
1144 /* Note: hvSubBus and irq is always be 0 at this level! */
1145 for (function = 0; function < 8; ++function) {
1146 agent_id = ISERIES_PCI_AGENTID(id_sel, function);
1147 ret = HvCallXm_connectBusUnit(bus, sub_bus, agent_id, 0);
1148 if (ret != 0) {
1149 if (ret != 0xb)
1150 printk(KERN_DEBUG "connectBusUnit(%x, %x, %x) "
1151 "== %x\n",
1152 bus, sub_bus, agent_id, ret);
1153 continue;
1154 }
1155 printk("found device at bus %d idsel %d func %d (AgentId %x)\n",
1156 bus, id_sel, function, agent_id);
1157 ret = HvCallPci_getBusUnitInfo(bus, sub_bus, agent_id,
1158 iseries_hv_addr(&bridge_info),
1159 sizeof(struct HvCallPci_BridgeInfo));
1160 if (ret != 0)
1161 continue;
1162 printk("bridge info: type %x subbus %x "
1163 "maxAgents %x maxsubbus %x logslot %x\n",
1164 bridge_info.busUnitInfo.deviceType,
1165 bridge_info.subBusNumber,
1166 bridge_info.maxAgents,
1167 bridge_info.maxSubBusNumber,
1168 bridge_info.logicalSlotNumber);
1169 if (bridge_info.busUnitInfo.deviceType ==
1170 HvCallPci_BridgeDevice)
1171 scan_bridge_slot(dt, bus, &bridge_info);
1172 else
1173 printk("PCI: Invalid Bridge Configuration(0x%02X)",
1174 bridge_info.busUnitInfo.deviceType);
1175 }
1176}
1177
1178static void __init scan_phb(struct iseries_flat_dt *dt, HvBusNumber bus)
1179{
1180 struct HvCallPci_DeviceInfo dev_info;
1181 const HvSubBusNumber sub_bus = 0; /* EADs is always 0. */
1182 int err;
1183 int id_sel;
1184 const int max_agents = 8;
1185
1186 /*
1187 * Probe for EADs Bridges
1188 */
1189 for (id_sel = 1; id_sel < max_agents; ++id_sel) {
1190 err = HvCallPci_getDeviceInfo(bus, sub_bus, id_sel,
1191 iseries_hv_addr(&dev_info),
1192 sizeof(struct HvCallPci_DeviceInfo));
1193 if (err) {
1194 if (err != 0x302)
1195 printk(KERN_DEBUG "getDeviceInfo(%x, %x, %x) "
1196 "== %x\n",
1197 bus, sub_bus, id_sel, err);
1198 continue;
1199 }
1200 if (dev_info.deviceType != HvCallPci_NodeDevice) {
1201 printk(KERN_DEBUG "PCI: Invalid System Configuration"
1202 "(0x%02X) for bus 0x%02x id 0x%02x.\n",
1203 dev_info.deviceType, bus, id_sel);
1204 continue;
1205 }
1206 scan_bridge(dt, bus, sub_bus, id_sel);
1207 }
1208}
1209
1210static void __init dt_pci_devices(struct iseries_flat_dt *dt)
1211{
1212 HvBusNumber bus;
1213 char buf[32];
1214 u32 buses[2];
1215 int phb_num = 0;
1216
1217 /* Check all possible buses. */
1218 for (bus = 0; bus < 256; bus++) {
1219 int err = HvCallXm_testBus(bus);
1220
1221 if (err) {
1222 /*
1223 * Check for Unexpected Return code, a clue that
1224 * something has gone wrong.
1225 */
1226 if (err != 0x0301)
1227 printk(KERN_ERR "Unexpected Return on Probe"
1228 "(0x%02X): 0x%04X", bus, err);
1229 continue;
1230 }
1231 printk("bus %d appears to exist\n", bus);
1232 snprintf(buf, 32, "pci@%d", phb_num);
1233 dt_start_node(dt, buf);
1234 dt_prop_str(dt, "device_type", "pci");
1235 dt_prop_str(dt, "compatible", "IBM,iSeries-Logical-PHB");
1236 dt_prop_u32(dt, "#address-cells", 3);
1237 dt_prop_u32(dt, "#size-cells", 2);
1238 buses[0] = buses[1] = bus;
1239 dt_prop_u32_list(dt, "bus-range", buses, 2);
1240 scan_phb(dt, bus);
1241 dt_end_node(dt);
1242 phb_num++;
1243 }
1244}
1245
1246static void __init build_flat_dt(struct iseries_flat_dt *dt,
1247 unsigned long phys_mem_size)
1248{
1249 u64 tmp[2];
1250
1251 dt_init(dt);
1252
1253 dt_start_node(dt, "");
1254
1255 dt_prop_u32(dt, "#address-cells", 2);
1256 dt_prop_u32(dt, "#size-cells", 2);
1257 dt_model(dt);
1258
1259 /* /memory */
1260 dt_start_node(dt, "memory@0");
1261 dt_prop_str(dt, "name", "memory");
1262 dt_prop_str(dt, "device_type", "memory");
1263 tmp[0] = 0;
1264 tmp[1] = phys_mem_size;
1265 dt_prop_u64_list(dt, "reg", tmp, 2);
1266 dt_end_node(dt);
1267
1268 /* /chosen */
1269 dt_start_node(dt, "chosen");
1270 dt_prop_str(dt, "bootargs", cmd_line);
1271 dt_end_node(dt);
1272
1273 dt_cpus(dt);
1274
1275 dt_vdevices(dt);
1276 dt_pci_devices(dt);
1277
1278 dt_end_node(dt);
1279
1280 dt_push_u32(dt, OF_DT_END);
1281}
1282
1283void * __init iSeries_early_setup(void) 709void * __init iSeries_early_setup(void)
1284{ 710{
1285 unsigned long phys_mem_size; 711 unsigned long phys_mem_size;
@@ -1294,9 +720,7 @@ void * __init iSeries_early_setup(void)
1294 720
1295 iSeries_get_cmdline(); 721 iSeries_get_cmdline();
1296 722
1297 build_flat_dt(&iseries_dt, phys_mem_size); 723 return (void *) __pa(build_flat_dt(phys_mem_size));
1298
1299 return (void *) __pa(&iseries_dt);
1300} 724}
1301 725
1302static void hvputc(char c) 726static void hvputc(char c)
diff --git a/arch/powerpc/platforms/iseries/setup.h b/arch/powerpc/platforms/iseries/setup.h
index 5213044ec4..0a47ac53c9 100644
--- a/arch/powerpc/platforms/iseries/setup.h
+++ b/arch/powerpc/platforms/iseries/setup.h
@@ -21,4 +21,6 @@ extern unsigned long iSeries_get_boot_time(void);
21extern int iSeries_set_rtc_time(struct rtc_time *tm); 21extern int iSeries_set_rtc_time(struct rtc_time *tm);
22extern void iSeries_get_rtc_time(struct rtc_time *tm); 22extern void iSeries_get_rtc_time(struct rtc_time *tm);
23 23
24extern void *build_flat_dt(unsigned long phys_mem_size);
25
24#endif /* __ISERIES_SETUP_H__ */ 26#endif /* __ISERIES_SETUP_H__ */
generated by cgit v1.2.2 (git 2.25.0) at 2025-03-25 10:39:11 -0400