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authorPaul Mackerras <paulus@samba.org>2005-10-22 02:02:39 -0400
committerPaul Mackerras <paulus@samba.org>2005-10-22 02:02:39 -0400
commit35499c0195e46f479cf6ac16ad8d3f394b5fcc10 (patch)
tree25660acd2425de5236a1eff7a25dc931e6f86492 /arch/powerpc
parentb6ba92819dc1304a4e5a0bf06b297c657b58168a (diff)
powerpc: Merge in 64-bit powermac support.
This brings in a lot of changes from arch/ppc64/kernel/pmac_*.c to arch/powerpc/platforms/powermac/*.c and makes various minor tweaks elsewhere. On the powermac we now initialize ppc_md by copying the whole pmac_md structure into it, which required some changes in the ordering of initializations of individual fields of it. Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/Kconfig1
-rw-r--r--arch/powerpc/kernel/head_64.S25
-rw-r--r--arch/powerpc/kernel/prom_init.c4
-rw-r--r--arch/powerpc/kernel/setup_32.c7
-rw-r--r--arch/powerpc/platforms/Makefile2
-rw-r--r--arch/powerpc/platforms/powermac/Makefile6
-rw-r--r--arch/powerpc/platforms/powermac/feature.c5
-rw-r--r--arch/powerpc/platforms/powermac/nvram.c183
-rw-r--r--arch/powerpc/platforms/powermac/pci.c472
-rw-r--r--arch/powerpc/platforms/powermac/pic.c2
-rw-r--r--arch/powerpc/platforms/powermac/pmac.h4
-rw-r--r--arch/powerpc/platforms/powermac/setup.c458
-rw-r--r--arch/powerpc/platforms/powermac/smp.c530
-rw-r--r--arch/powerpc/platforms/powermac/time.c250
14 files changed, 1136 insertions, 813 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index e70f7049cc6f..27f122e1f849 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -290,6 +290,7 @@ config PPC_PMAC
290config PPC_PMAC64 290config PPC_PMAC64
291 bool 291 bool
292 depends on PPC_PMAC && POWER4 292 depends on PPC_PMAC && POWER4
293 select U3_DART
293 default y 294 default y
294 295
295config PPC_PREP 296config PPC_PREP
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index 72b0d26e41d4..147215a0d6c0 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -1501,20 +1501,17 @@ copy_to_here:
1501 .section ".text"; 1501 .section ".text";
1502 .align 2 ; 1502 .align 2 ;
1503 1503
1504 .globl pmac_secondary_start_1 1504 .globl __secondary_start_pmac_0
1505pmac_secondary_start_1: 1505__secondary_start_pmac_0:
1506 li r24, 1 1506 /* NB the entries for cpus 0, 1, 2 must each occupy 8 bytes. */
1507 b .pmac_secondary_start 1507 li r24,0
1508 1508 b 1f
1509 .globl pmac_secondary_start_2 1509 li r24,1
1510pmac_secondary_start_2: 1510 b 1f
1511 li r24, 2 1511 li r24,2
1512 b .pmac_secondary_start 1512 b 1f
1513 1513 li r24,3
1514 .globl pmac_secondary_start_3 15141:
1515pmac_secondary_start_3:
1516 li r24, 3
1517 b .pmac_secondary_start
1518 1515
1519_GLOBAL(pmac_secondary_start) 1516_GLOBAL(pmac_secondary_start)
1520 /* turn on 64-bit mode */ 1517 /* turn on 64-bit mode */
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 9b1baaa9eda0..095659d51b4b 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -772,7 +772,7 @@ static unsigned long __init prom_next_cell(int s, cell_t **cellp)
772 } 772 }
773 r = *p++; 773 r = *p++;
774#ifdef CONFIG_PPC64 774#ifdef CONFIG_PPC64
775 if (s) { 775 if (s > 1) {
776 r <<= 32; 776 r <<= 32;
777 r |= *(p++); 777 r |= *(p++);
778 } 778 }
@@ -2059,7 +2059,7 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4,
2059 reloc_got2(-offset); 2059 reloc_got2(-offset);
2060#endif 2060#endif
2061 2061
2062 __start(hdr, 0, 0); 2062 __start(hdr, KERNELBASE + offset, 0);
2063 2063
2064 return 0; 2064 return 0;
2065} 2065}
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index b9269c038af3..2d7fdeb581d1 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -464,14 +464,11 @@ void __init machine_init(unsigned long dt_ptr, unsigned long phys)
464 strlcpy(cmd_line, CONFIG_CMDLINE, sizeof(cmd_line)); 464 strlcpy(cmd_line, CONFIG_CMDLINE, sizeof(cmd_line));
465#endif /* CONFIG_CMDLINE */ 465#endif /* CONFIG_CMDLINE */
466 466
467 platform_init();
468
467#ifdef CONFIG_6xx 469#ifdef CONFIG_6xx
468 ppc_md.power_save = ppc6xx_idle; 470 ppc_md.power_save = ppc6xx_idle;
469#endif 471#endif
470#ifdef CONFIG_POWER4
471 ppc_md.power_save = power4_idle;
472#endif
473
474 platform_init();
475 472
476 if (ppc_md.progress) 473 if (ppc_md.progress)
477 ppc_md.progress("id mach(): done", 0x200); 474 ppc_md.progress("id mach(): done", 0x200);
diff --git a/arch/powerpc/platforms/Makefile b/arch/powerpc/platforms/Makefile
index da744d5e52fd..9b54e805b8aa 100644
--- a/arch/powerpc/platforms/Makefile
+++ b/arch/powerpc/platforms/Makefile
@@ -1,4 +1,4 @@
1ifeq ($(CONFIG_PPC32),y) 1ifeq ($(CONFIG_PPC_MERGE),y)
2obj-$(CONFIG_PPC_PMAC) += powermac/ 2obj-$(CONFIG_PPC_PMAC) += powermac/
3endif 3endif
4obj-$(CONFIG_4xx) += 4xx/ 4obj-$(CONFIG_4xx) += 4xx/
diff --git a/arch/powerpc/platforms/powermac/Makefile b/arch/powerpc/platforms/powermac/Makefile
index 74712ede16df..4369676f1d54 100644
--- a/arch/powerpc/platforms/powermac/Makefile
+++ b/arch/powerpc/platforms/powermac/Makefile
@@ -1,8 +1,8 @@
1obj-$(CONFIG_PPC_PMAC) += pic.o setup.o time.o feature.o pci.o \ 1obj-y += pic.o setup.o time.o feature.o pci.o \
2 sleep.o low_i2c.o cache.o 2 sleep.o low_i2c.o cache.o
3obj-$(CONFIG_PMAC_BACKLIGHT) += backlight.o 3obj-$(CONFIG_PMAC_BACKLIGHT) += backlight.o
4obj-$(CONFIG_CPU_FREQ_PMAC) += cpufreq.o 4obj-$(CONFIG_CPU_FREQ_PMAC) += cpufreq.o
5ifeq ($(CONFIG_PPC_PMAC),y)
6obj-$(CONFIG_NVRAM) += nvram.o 5obj-$(CONFIG_NVRAM) += nvram.o
6# ppc64 pmac doesn't define CONFIG_NVRAM but needs nvram stuff
7obj-$(CONFIG_PPC64) += nvram.o
7obj-$(CONFIG_SMP) += smp.o 8obj-$(CONFIG_SMP) += smp.o
8endif
diff --git a/arch/powerpc/platforms/powermac/feature.c b/arch/powerpc/platforms/powermac/feature.c
index 243a24fd025a..10f1d942c661 100644
--- a/arch/powerpc/platforms/powermac/feature.c
+++ b/arch/powerpc/platforms/powermac/feature.c
@@ -2960,7 +2960,6 @@ static void dump_HT_speeds(char *name, u32 cfg, u32 frq)
2960 2960
2961void __init pmac_check_ht_link(void) 2961void __init pmac_check_ht_link(void)
2962{ 2962{
2963#if 0 /* Disabled for now */
2964 u32 ufreq, freq, ucfg, cfg; 2963 u32 ufreq, freq, ucfg, cfg;
2965 struct device_node *pcix_node; 2964 struct device_node *pcix_node;
2966 u8 px_bus, px_devfn; 2965 u8 px_bus, px_devfn;
@@ -2991,10 +2990,8 @@ void __init pmac_check_ht_link(void)
2991 early_read_config_dword(px_hose, px_bus, px_devfn, 0xc8, &cfg); 2990 early_read_config_dword(px_hose, px_bus, px_devfn, 0xc8, &cfg);
2992 early_read_config_dword(px_hose, px_bus, px_devfn, 0xd0, &freq); 2991 early_read_config_dword(px_hose, px_bus, px_devfn, 0xd0, &freq);
2993 dump_HT_speeds("PCI-X HT Downlink", cfg, freq); 2992 dump_HT_speeds("PCI-X HT Downlink", cfg, freq);
2994#endif
2995} 2993}
2996 2994#endif /* 0 */
2997#endif /* CONFIG_POWER4 */
2998 2995
2999/* 2996/*
3000 * Early video resume hook 2997 * Early video resume hook
diff --git a/arch/powerpc/platforms/powermac/nvram.c b/arch/powerpc/platforms/powermac/nvram.c
index 8c9b008c7226..4042e2f06ee0 100644
--- a/arch/powerpc/platforms/powermac/nvram.c
+++ b/arch/powerpc/platforms/powermac/nvram.c
@@ -47,7 +47,8 @@
47 47
48/* On Core99, nvram is either a sharp, a micron or an AMD flash */ 48/* On Core99, nvram is either a sharp, a micron or an AMD flash */
49#define SM_FLASH_STATUS_DONE 0x80 49#define SM_FLASH_STATUS_DONE 0x80
50#define SM_FLASH_STATUS_ERR 0x38 50#define SM_FLASH_STATUS_ERR 0x38
51
51#define SM_FLASH_CMD_ERASE_CONFIRM 0xd0 52#define SM_FLASH_CMD_ERASE_CONFIRM 0xd0
52#define SM_FLASH_CMD_ERASE_SETUP 0x20 53#define SM_FLASH_CMD_ERASE_SETUP 0x20
53#define SM_FLASH_CMD_RESET 0xff 54#define SM_FLASH_CMD_RESET 0xff
@@ -75,11 +76,11 @@ struct core99_header {
75 * Read and write the non-volatile RAM on PowerMacs and CHRP machines. 76 * Read and write the non-volatile RAM on PowerMacs and CHRP machines.
76 */ 77 */
77static int nvram_naddrs; 78static int nvram_naddrs;
78static volatile unsigned char *nvram_addr;
79static volatile unsigned char *nvram_data; 79static volatile unsigned char *nvram_data;
80static int nvram_mult, is_core_99; 80static int is_core_99;
81static int core99_bank = 0; 81static int core99_bank = 0;
82static int nvram_partitions[3]; 82static int nvram_partitions[3];
83// XXX Turn that into a sem
83static DEFINE_SPINLOCK(nv_lock); 84static DEFINE_SPINLOCK(nv_lock);
84 85
85extern int pmac_newworld; 86extern int pmac_newworld;
@@ -105,6 +106,52 @@ static void core99_nvram_write_byte(int addr, unsigned char val)
105 nvram_image[addr] = val; 106 nvram_image[addr] = val;
106} 107}
107 108
109static ssize_t core99_nvram_read(char *buf, size_t count, loff_t *index)
110{
111 int i;
112
113 if (nvram_image == NULL)
114 return -ENODEV;
115 if (*index > NVRAM_SIZE)
116 return 0;
117
118 i = *index;
119 if (i + count > NVRAM_SIZE)
120 count = NVRAM_SIZE - i;
121
122 memcpy(buf, &nvram_image[i], count);
123 *index = i + count;
124 return count;
125}
126
127static ssize_t core99_nvram_write(char *buf, size_t count, loff_t *index)
128{
129 int i;
130
131 if (nvram_image == NULL)
132 return -ENODEV;
133 if (*index > NVRAM_SIZE)
134 return 0;
135
136 i = *index;
137 if (i + count > NVRAM_SIZE)
138 count = NVRAM_SIZE - i;
139
140 memcpy(&nvram_image[i], buf, count);
141 *index = i + count;
142 return count;
143}
144
145static ssize_t core99_nvram_size(void)
146{
147 if (nvram_image == NULL)
148 return -ENODEV;
149 return NVRAM_SIZE;
150}
151
152#ifdef CONFIG_PPC32
153static volatile unsigned char *nvram_addr;
154static int nvram_mult;
108 155
109static unsigned char direct_nvram_read_byte(int addr) 156static unsigned char direct_nvram_read_byte(int addr)
110{ 157{
@@ -181,7 +228,7 @@ static void pmu_nvram_write_byte(int addr, unsigned char val)
181} 228}
182 229
183#endif /* CONFIG_ADB_PMU */ 230#endif /* CONFIG_ADB_PMU */
184 231#endif /* CONFIG_PPC32 */
185 232
186static u8 chrp_checksum(struct chrp_header* hdr) 233static u8 chrp_checksum(struct chrp_header* hdr)
187{ 234{
@@ -249,7 +296,7 @@ static int sm_erase_bank(int bank)
249 timeout = 0; 296 timeout = 0;
250 do { 297 do {
251 if (++timeout > 1000000) { 298 if (++timeout > 1000000) {
252 printk(KERN_ERR "nvram: Sharp/Miron flash erase timeout !\n"); 299 printk(KERN_ERR "nvram: Sharp/Micron flash erase timeout !\n");
253 break; 300 break;
254 } 301 }
255 out_8(base, SM_FLASH_CMD_READ_STATUS); 302 out_8(base, SM_FLASH_CMD_READ_STATUS);
@@ -411,7 +458,7 @@ static void __init lookup_partitions(void)
411 buffer[16] = 0; 458 buffer[16] = 0;
412 do { 459 do {
413 for (i=0;i<16;i++) 460 for (i=0;i<16;i++)
414 buffer[i] = nvram_read_byte(offset+i); 461 buffer[i] = ppc_md.nvram_read_val(offset+i);
415 if (!strcmp(hdr->name, "common")) 462 if (!strcmp(hdr->name, "common"))
416 nvram_partitions[pmac_nvram_OF] = offset + 0x10; 463 nvram_partitions[pmac_nvram_OF] = offset + 0x10;
417 if (!strcmp(hdr->name, "APL,MacOS75")) { 464 if (!strcmp(hdr->name, "APL,MacOS75")) {
@@ -467,65 +514,76 @@ static void core99_nvram_sync(void)
467#endif 514#endif
468} 515}
469 516
470void __init pmac_nvram_init(void) 517static int __init core99_nvram_setup(struct device_node *dp)
518{
519 int i;
520 u32 gen_bank0, gen_bank1;
521
522 if (nvram_naddrs < 1) {
523 printk(KERN_ERR "nvram: no address\n");
524 return -EINVAL;
525 }
526 nvram_image = alloc_bootmem(NVRAM_SIZE);
527 if (nvram_image == NULL) {
528 printk(KERN_ERR "nvram: can't allocate ram image\n");
529 return -ENOMEM;
530 }
531 nvram_data = ioremap(dp->addrs[0].address, NVRAM_SIZE*2);
532 nvram_naddrs = 1; /* Make sure we get the correct case */
533
534 DBG("nvram: Checking bank 0...\n");
535
536 gen_bank0 = core99_check((u8 *)nvram_data);
537 gen_bank1 = core99_check((u8 *)nvram_data + NVRAM_SIZE);
538 core99_bank = (gen_bank0 < gen_bank1) ? 1 : 0;
539
540 DBG("nvram: gen0=%d, gen1=%d\n", gen_bank0, gen_bank1);
541 DBG("nvram: Active bank is: %d\n", core99_bank);
542
543 for (i=0; i<NVRAM_SIZE; i++)
544 nvram_image[i] = nvram_data[i + core99_bank*NVRAM_SIZE];
545
546 ppc_md.nvram_read_val = core99_nvram_read_byte;
547 ppc_md.nvram_write_val = core99_nvram_write_byte;
548 ppc_md.nvram_read = core99_nvram_read;
549 ppc_md.nvram_write = core99_nvram_write;
550 ppc_md.nvram_size = core99_nvram_size;
551 ppc_md.nvram_sync = core99_nvram_sync;
552 /*
553 * Maybe we could be smarter here though making an exclusive list
554 * of known flash chips is a bit nasty as older OF didn't provide us
555 * with a useful "compatible" entry. A solution would be to really
556 * identify the chip using flash id commands and base ourselves on
557 * a list of known chips IDs
558 */
559 if (device_is_compatible(dp, "amd-0137")) {
560 core99_erase_bank = amd_erase_bank;
561 core99_write_bank = amd_write_bank;
562 } else {
563 core99_erase_bank = sm_erase_bank;
564 core99_write_bank = sm_write_bank;
565 }
566 return 0;
567}
568
569int __init pmac_nvram_init(void)
471{ 570{
472 struct device_node *dp; 571 struct device_node *dp;
572 int err = 0;
473 573
474 nvram_naddrs = 0; 574 nvram_naddrs = 0;
475 575
476 dp = find_devices("nvram"); 576 dp = find_devices("nvram");
477 if (dp == NULL) { 577 if (dp == NULL) {
478 printk(KERN_ERR "Can't find NVRAM device\n"); 578 printk(KERN_ERR "Can't find NVRAM device\n");
479 return; 579 return -ENODEV;
480 } 580 }
481 nvram_naddrs = dp->n_addrs; 581 nvram_naddrs = dp->n_addrs;
482 is_core_99 = device_is_compatible(dp, "nvram,flash"); 582 is_core_99 = device_is_compatible(dp, "nvram,flash");
483 if (is_core_99) { 583 if (is_core_99)
484 int i; 584 err = core99_nvram_setup(dp);
485 u32 gen_bank0, gen_bank1; 585#ifdef CONFIG_PPC32
486 586 else if (_machine == _MACH_chrp && nvram_naddrs == 1) {
487 if (nvram_naddrs < 1) {
488 printk(KERN_ERR "nvram: no address\n");
489 return;
490 }
491 nvram_image = alloc_bootmem(NVRAM_SIZE);
492 if (nvram_image == NULL) {
493 printk(KERN_ERR "nvram: can't allocate ram image\n");
494 return;
495 }
496 nvram_data = ioremap(dp->addrs[0].address, NVRAM_SIZE*2);
497 nvram_naddrs = 1; /* Make sure we get the correct case */
498
499 DBG("nvram: Checking bank 0...\n");
500
501 gen_bank0 = core99_check((u8 *)nvram_data);
502 gen_bank1 = core99_check((u8 *)nvram_data + NVRAM_SIZE);
503 core99_bank = (gen_bank0 < gen_bank1) ? 1 : 0;
504
505 DBG("nvram: gen0=%d, gen1=%d\n", gen_bank0, gen_bank1);
506 DBG("nvram: Active bank is: %d\n", core99_bank);
507
508 for (i=0; i<NVRAM_SIZE; i++)
509 nvram_image[i] = nvram_data[i + core99_bank*NVRAM_SIZE];
510
511 ppc_md.nvram_read_val = core99_nvram_read_byte;
512 ppc_md.nvram_write_val = core99_nvram_write_byte;
513 ppc_md.nvram_sync = core99_nvram_sync;
514 /*
515 * Maybe we could be smarter here though making an exclusive list
516 * of known flash chips is a bit nasty as older OF didn't provide us
517 * with a useful "compatible" entry. A solution would be to really
518 * identify the chip using flash id commands and base ourselves on
519 * a list of known chips IDs
520 */
521 if (device_is_compatible(dp, "amd-0137")) {
522 core99_erase_bank = amd_erase_bank;
523 core99_write_bank = amd_write_bank;
524 } else {
525 core99_erase_bank = sm_erase_bank;
526 core99_write_bank = sm_write_bank;
527 }
528 } else if (_machine == _MACH_chrp && nvram_naddrs == 1) {
529 nvram_data = ioremap(dp->addrs[0].address + isa_mem_base, 587 nvram_data = ioremap(dp->addrs[0].address + isa_mem_base,
530 dp->addrs[0].size); 588 dp->addrs[0].size);
531 nvram_mult = 1; 589 nvram_mult = 1;
@@ -547,11 +605,14 @@ void __init pmac_nvram_init(void)
547 ppc_md.nvram_read_val = pmu_nvram_read_byte; 605 ppc_md.nvram_read_val = pmu_nvram_read_byte;
548 ppc_md.nvram_write_val = pmu_nvram_write_byte; 606 ppc_md.nvram_write_val = pmu_nvram_write_byte;
549#endif /* CONFIG_ADB_PMU */ 607#endif /* CONFIG_ADB_PMU */
550 } else { 608 }
551 printk(KERN_ERR "Don't know how to access NVRAM with %d addresses\n", 609#endif
552 nvram_naddrs); 610 else {
611 printk(KERN_ERR "Incompatible type of NVRAM\n");
612 return -ENXIO;
553 } 613 }
554 lookup_partitions(); 614 lookup_partitions();
615 return err;
555} 616}
556 617
557int pmac_get_partition(int partition) 618int pmac_get_partition(int partition)
@@ -561,9 +622,9 @@ int pmac_get_partition(int partition)
561 622
562u8 pmac_xpram_read(int xpaddr) 623u8 pmac_xpram_read(int xpaddr)
563{ 624{
564 int offset = nvram_partitions[pmac_nvram_XPRAM]; 625 int offset = pmac_get_partition(pmac_nvram_XPRAM);
565 626
566 if (offset < 0) 627 if (offset < 0 || xpaddr < 0 || xpaddr > 0x100)
567 return 0xff; 628 return 0xff;
568 629
569 return ppc_md.nvram_read_val(xpaddr + offset); 630 return ppc_md.nvram_read_val(xpaddr + offset);
@@ -571,9 +632,9 @@ u8 pmac_xpram_read(int xpaddr)
571 632
572void pmac_xpram_write(int xpaddr, u8 data) 633void pmac_xpram_write(int xpaddr, u8 data)
573{ 634{
574 int offset = nvram_partitions[pmac_nvram_XPRAM]; 635 int offset = pmac_get_partition(pmac_nvram_XPRAM);
575 636
576 if (offset < 0) 637 if (offset < 0 || xpaddr < 0 || xpaddr > 0x100)
577 return; 638 return;
578 639
579 ppc_md.nvram_write_val(xpaddr + offset, data); 640 ppc_md.nvram_write_val(xpaddr + offset, data);
diff --git a/arch/powerpc/platforms/powermac/pci.c b/arch/powerpc/platforms/powermac/pci.c
index 34dfe1e9706f..ebe22a2267d2 100644
--- a/arch/powerpc/platforms/powermac/pci.c
+++ b/arch/powerpc/platforms/powermac/pci.c
@@ -37,14 +37,14 @@
37#endif 37#endif
38 38
39static int add_bridge(struct device_node *dev); 39static int add_bridge(struct device_node *dev);
40extern void pmac_check_ht_link(void);
41 40
42/* XXX Could be per-controller, but I don't think we risk anything by 41/* XXX Could be per-controller, but I don't think we risk anything by
43 * assuming we won't have both UniNorth and Bandit */ 42 * assuming we won't have both UniNorth and Bandit */
44static int has_uninorth; 43static int has_uninorth;
45#ifdef CONFIG_POWER4 44#ifdef CONFIG_PPC64
46static struct pci_controller *u3_agp; 45static struct pci_controller *u3_agp;
47#endif /* CONFIG_POWER4 */ 46static struct pci_controller *u3_ht;
47#endif /* CONFIG_PPC64 */
48 48
49extern u8 pci_cache_line_size; 49extern u8 pci_cache_line_size;
50extern int pcibios_assign_bus_offset; 50extern int pcibios_assign_bus_offset;
@@ -229,6 +229,7 @@ static struct pci_ops macrisc_pci_ops =
229 macrisc_write_config 229 macrisc_write_config
230}; 230};
231 231
232#ifdef CONFIG_PPC32
232/* 233/*
233 * Verify that a specific (bus, dev_fn) exists on chaos 234 * Verify that a specific (bus, dev_fn) exists on chaos
234 */ 235 */
@@ -282,7 +283,19 @@ static struct pci_ops chaos_pci_ops =
282 chaos_write_config 283 chaos_write_config
283}; 284};
284 285
285#ifdef CONFIG_POWER4 286static void __init setup_chaos(struct pci_controller *hose,
287 struct reg_property *addr)
288{
289 /* assume a `chaos' bridge */
290 hose->ops = &chaos_pci_ops;
291 hose->cfg_addr = ioremap(addr->address + 0x800000, 0x1000);
292 hose->cfg_data = ioremap(addr->address + 0xc00000, 0x1000);
293}
294#else
295#define setup_chaos(hose, addr)
296#endif /* CONFIG_PPC32 */
297
298#ifdef CONFIG_PPC64
286/* 299/*
287 * These versions of U3 HyperTransport config space access ops do not 300 * These versions of U3 HyperTransport config space access ops do not
288 * implement self-view of the HT host yet 301 * implement self-view of the HT host yet
@@ -445,8 +458,9 @@ static struct pci_ops u3_ht_pci_ops =
445 u3_ht_read_config, 458 u3_ht_read_config,
446 u3_ht_write_config 459 u3_ht_write_config
447}; 460};
448#endif /* CONFIG_POWER4 */ 461#endif /* CONFIG_PPC64 */
449 462
463#ifdef CONFIG_PPC32
450/* 464/*
451 * For a bandit bridge, turn on cache coherency if necessary. 465 * For a bandit bridge, turn on cache coherency if necessary.
452 * N.B. we could clean this up using the hose ops directly. 466 * N.B. we could clean this up using the hose ops directly.
@@ -487,7 +501,6 @@ static void __init init_bandit(struct pci_controller *bp)
487 printk(KERN_INFO "Cache coherency enabled for bandit/PSX\n"); 501 printk(KERN_INFO "Cache coherency enabled for bandit/PSX\n");
488} 502}
489 503
490
491/* 504/*
492 * Tweak the PCI-PCI bridge chip on the blue & white G3s. 505 * Tweak the PCI-PCI bridge chip on the blue & white G3s.
493 */ 506 */
@@ -539,7 +552,7 @@ static void __init fixup_nec_usb2(void)
539 struct pci_controller *hose; 552 struct pci_controller *hose;
540 u32 data, *prop; 553 u32 data, *prop;
541 u8 bus, devfn; 554 u8 bus, devfn;
542 555
543 prop = (u32 *)get_property(nec, "vendor-id", NULL); 556 prop = (u32 *)get_property(nec, "vendor-id", NULL);
544 if (prop == NULL) 557 if (prop == NULL)
545 continue; 558 continue;
@@ -605,20 +618,18 @@ static inline void grackle_set_loop_snoop(struct pci_controller *bp, int enable)
605 (void)in_le32(bp->cfg_data); 618 (void)in_le32(bp->cfg_data);
606} 619}
607 620
608static int __init 621void __init setup_grackle(struct pci_controller *hose)
609setup_uninorth(struct pci_controller* hose, struct reg_property* addr)
610{ 622{
611 pci_assign_all_buses = 1; 623 setup_indirect_pci(hose, 0xfec00000, 0xfee00000);
612 has_uninorth = 1; 624 if (machine_is_compatible("AAPL,PowerBook1998"))
613 hose->ops = &macrisc_pci_ops; 625 grackle_set_loop_snoop(hose, 1);
614 hose->cfg_addr = ioremap(addr->address + 0x800000, 0x1000); 626#if 0 /* Disabled for now, HW problems ??? */
615 hose->cfg_data = ioremap(addr->address + 0xc00000, 0x1000); 627 grackle_set_stg(hose, 1);
616 /* We "know" that the bridge at f2000000 has the PCI slots. */ 628#endif
617 return addr->address == 0xf2000000;
618} 629}
619 630
620static void __init 631static void __init setup_bandit(struct pci_controller *hose,
621setup_bandit(struct pci_controller* hose, struct reg_property* addr) 632 struct reg_property *addr)
622{ 633{
623 hose->ops = &macrisc_pci_ops; 634 hose->ops = &macrisc_pci_ops;
624 hose->cfg_addr = ioremap(addr->address + 0x800000, 0x1000); 635 hose->cfg_addr = ioremap(addr->address + 0x800000, 0x1000);
@@ -626,21 +637,25 @@ setup_bandit(struct pci_controller* hose, struct reg_property* addr)
626 init_bandit(hose); 637 init_bandit(hose);
627} 638}
628 639
629static void __init 640static int __init setup_uninorth(struct pci_controller *hose,
630setup_chaos(struct pci_controller* hose, struct reg_property* addr) 641 struct reg_property *addr)
631{ 642{
632 /* assume a `chaos' bridge */ 643 pci_assign_all_buses = 1;
633 hose->ops = &chaos_pci_ops; 644 has_uninorth = 1;
645 hose->ops = &macrisc_pci_ops;
634 hose->cfg_addr = ioremap(addr->address + 0x800000, 0x1000); 646 hose->cfg_addr = ioremap(addr->address + 0x800000, 0x1000);
635 hose->cfg_data = ioremap(addr->address + 0xc00000, 0x1000); 647 hose->cfg_data = ioremap(addr->address + 0xc00000, 0x1000);
648 /* We "know" that the bridge at f2000000 has the PCI slots. */
649 return addr->address == 0xf2000000;
636} 650}
651#endif
637 652
638#ifdef CONFIG_POWER4 653#ifdef CONFIG_PPC64
639static void __init setup_u3_agp(struct pci_controller* hose) 654static void __init setup_u3_agp(struct pci_controller* hose)
640{ 655{
641 /* On G5, we move AGP up to high bus number so we don't need 656 /* On G5, we move AGP up to high bus number so we don't need
642 * to reassign bus numbers for HT. If we ever have P2P bridges 657 * to reassign bus numbers for HT. If we ever have P2P bridges
643 * on AGP, we'll have to move pci_assign_all_buses to the 658 * on AGP, we'll have to move pci_assign_all_busses to the
644 * pci_controller structure so we enable it for AGP and not for 659 * pci_controller structure so we enable it for AGP and not for
645 * HT childs. 660 * HT childs.
646 * We hard code the address because of the different size of 661 * We hard code the address because of the different size of
@@ -679,8 +694,7 @@ static void __init setup_u3_ht(struct pci_controller* hose)
679 * then read its configuration register (if any). 694 * then read its configuration register (if any).
680 */ 695 */
681 hose->io_base_phys = 0xf4000000; 696 hose->io_base_phys = 0xf4000000;
682 hose->io_base_virt = ioremap(hose->io_base_phys, 0x00400000); 697 hose->pci_io_size = 0x00400000;
683 isa_io_base = pci_io_base = (unsigned long) hose->io_base_virt;
684 hose->io_resource.name = np->full_name; 698 hose->io_resource.name = np->full_name;
685 hose->io_resource.start = 0; 699 hose->io_resource.start = 0;
686 hose->io_resource.end = 0x003fffff; 700 hose->io_resource.end = 0x003fffff;
@@ -693,6 +707,8 @@ static void __init setup_u3_ht(struct pci_controller* hose)
693 hose->mem_resources[0].end = 0xefffffff; 707 hose->mem_resources[0].end = 0xefffffff;
694 hose->mem_resources[0].flags = IORESOURCE_MEM; 708 hose->mem_resources[0].flags = IORESOURCE_MEM;
695 709
710 u3_ht = hose;
711
696 if (u3_agp == NULL) { 712 if (u3_agp == NULL) {
697 DBG("U3 has no AGP, using full resource range\n"); 713 DBG("U3 has no AGP, using full resource range\n");
698 return; 714 return;
@@ -730,7 +746,7 @@ static void __init setup_u3_ht(struct pci_controller* hose)
730 printk(KERN_WARNING "Running out of resources for /ht host !\n"); 746 printk(KERN_WARNING "Running out of resources for /ht host !\n");
731 hose->mem_resources[cur].end = res->start - 1; 747 hose->mem_resources[cur].end = res->start - 1;
732 continue; 748 continue;
733 } 749 }
734 cur++; 750 cur++;
735 DBG("U3/HT: hole, %d end at %08lx, %d start at %08lx\n", 751 DBG("U3/HT: hole, %d end at %08lx, %d start at %08lx\n",
736 cur-1, res->start - 1, cur, res->end + 1); 752 cur-1, res->start - 1, cur, res->end + 1);
@@ -742,126 +758,17 @@ static void __init setup_u3_ht(struct pci_controller* hose)
742 } 758 }
743} 759}
744 760
745#endif /* CONFIG_POWER4 */ 761/* XXX this needs to be converged between ppc32 and ppc64... */
746 762static struct pci_controller * __init pcibios_alloc_controller(void)
747void __init
748setup_grackle(struct pci_controller *hose)
749{ 763{
750 setup_indirect_pci(hose, 0xfec00000, 0xfee00000); 764 struct pci_controller *hose;
751 if (machine_is_compatible("AAPL,PowerBook1998"))
752 grackle_set_loop_snoop(hose, 1);
753#if 0 /* Disabled for now, HW problems ??? */
754 grackle_set_stg(hose, 1);
755#endif
756}
757
758static void __init pmac_process_bridge_OF_ranges(struct pci_controller *hose,
759 struct device_node *dev, int primary)
760{
761 static unsigned int static_lc_ranges[2024];
762 unsigned int *dt_ranges, *lc_ranges, *ranges, *prev;
763 unsigned int size;
764 int rlen = 0, orig_rlen;
765 int memno = 0;
766 struct resource *res;
767 int np, na = prom_n_addr_cells(dev);
768
769 np = na + 5;
770
771 /* First we try to merge ranges to fix a problem with some pmacs
772 * that can have more than 3 ranges, fortunately using contiguous
773 * addresses -- BenH
774 */
775 dt_ranges = (unsigned int *) get_property(dev, "ranges", &rlen);
776 if (!dt_ranges)
777 return;
778 /* lc_ranges = alloc_bootmem(rlen);*/
779 lc_ranges = static_lc_ranges;
780 if (!lc_ranges)
781 return; /* what can we do here ? */
782 memcpy(lc_ranges, dt_ranges, rlen);
783 orig_rlen = rlen;
784
785 /* Let's work on a copy of the "ranges" property instead of damaging
786 * the device-tree image in memory
787 */
788 ranges = lc_ranges;
789 prev = NULL;
790 while ((rlen -= np * sizeof(unsigned int)) >= 0) {
791 if (prev) {
792 if (prev[0] == ranges[0] && prev[1] == ranges[1] &&
793 (prev[2] + prev[na+4]) == ranges[2] &&
794 (prev[na+2] + prev[na+4]) == ranges[na+2]) {
795 prev[na+4] += ranges[na+4];
796 ranges[0] = 0;
797 ranges += np;
798 continue;
799 }
800 }
801 prev = ranges;
802 ranges += np;
803 }
804 765
805 /* 766 hose = alloc_bootmem(sizeof(struct pci_controller));
806 * The ranges property is laid out as an array of elements, 767 if (hose)
807 * each of which comprises: 768 pci_setup_pci_controller(hose);
808 * cells 0 - 2: a PCI address 769 return hose;
809 * cells 3 or 3+4: a CPU physical address
810 * (size depending on dev->n_addr_cells)
811 * cells 4+5 or 5+6: the size of the range
812 */
813 ranges = lc_ranges;
814 rlen = orig_rlen;
815 while (ranges && (rlen -= np * sizeof(unsigned int)) >= 0) {
816 res = NULL;
817 size = ranges[na+4];
818 switch (ranges[0] >> 24) {
819 case 1: /* I/O space */
820 if (ranges[2] != 0)
821 break;
822 hose->io_base_phys = ranges[na+2];
823 /* limit I/O space to 16MB */
824 if (size > 0x01000000)
825 size = 0x01000000;
826 hose->io_base_virt = ioremap(ranges[na+2], size);
827 if (primary)
828 isa_io_base = (unsigned long) hose->io_base_virt;
829 res = &hose->io_resource;
830 res->flags = IORESOURCE_IO;
831 res->start = ranges[2];
832 break;
833 case 2: /* memory space */
834 memno = 0;
835 if (ranges[1] == 0 && ranges[2] == 0
836 && ranges[na+4] <= (16 << 20)) {
837 /* 1st 16MB, i.e. ISA memory area */
838#if 0
839 if (primary)
840 isa_mem_base = ranges[na+2];
841#endif
842 memno = 1;
843 }
844 while (memno < 3 && hose->mem_resources[memno].flags)
845 ++memno;
846 if (memno == 0)
847 hose->pci_mem_offset = ranges[na+2] - ranges[2];
848 if (memno < 3) {
849 res = &hose->mem_resources[memno];
850 res->flags = IORESOURCE_MEM;
851 res->start = ranges[na+2];
852 }
853 break;
854 }
855 if (res != NULL) {
856 res->name = dev->full_name;
857 res->end = res->start + size - 1;
858 res->parent = NULL;
859 res->sibling = NULL;
860 res->child = NULL;
861 }
862 ranges += np;
863 }
864} 770}
771#endif
865 772
866/* 773/*
867 * We assume that if we have a G3 powermac, we have one bridge called 774 * We assume that if we have a G3 powermac, we have one bridge called
@@ -872,70 +779,78 @@ static int __init add_bridge(struct device_node *dev)
872{ 779{
873 int len; 780 int len;
874 struct pci_controller *hose; 781 struct pci_controller *hose;
782#ifdef CONFIG_PPC32
875 struct reg_property *addr; 783 struct reg_property *addr;
876 char* disp_name; 784#endif
785 char *disp_name;
877 int *bus_range; 786 int *bus_range;
878 int primary = 1; 787 int primary = 1;
879 788
880 DBG("Adding PCI host bridge %s\n", dev->full_name); 789 DBG("Adding PCI host bridge %s\n", dev->full_name);
881 790
882 addr = (struct reg_property *) get_property(dev, "reg", &len); 791#ifdef CONFIG_PPC32
883 if (addr == NULL || len < sizeof(*addr)) { 792 /* XXX fix this */
884 printk(KERN_WARNING "Can't use %s: no address\n", 793 addr = (struct reg_property *) get_property(dev, "reg", &len);
885 dev->full_name); 794 if (addr == NULL || len < sizeof(*addr)) {
886 return -ENODEV; 795 printk(KERN_WARNING "Can't use %s: no address\n",
887 } 796 dev->full_name);
888 bus_range = (int *) get_property(dev, "bus-range", &len); 797 return -ENODEV;
889 if (bus_range == NULL || len < 2 * sizeof(int)) { 798 }
890 printk(KERN_WARNING "Can't get bus-range for %s, assume bus 0\n", 799#endif
891 dev->full_name); 800 bus_range = (int *) get_property(dev, "bus-range", &len);
892 } 801 if (bus_range == NULL || len < 2 * sizeof(int)) {
893 802 printk(KERN_WARNING "Can't get bus-range for %s, assume bus 0\n",
894 hose = pcibios_alloc_controller(); 803 dev->full_name);
895 if (!hose) 804 }
896 return -ENOMEM; 805
897 hose->arch_data = dev; 806 hose = pcibios_alloc_controller();
898 hose->first_busno = bus_range ? bus_range[0] : 0; 807 if (!hose)
899 hose->last_busno = bus_range ? bus_range[1] : 0xff; 808 return -ENOMEM;
809 hose->arch_data = dev;
810 hose->first_busno = bus_range ? bus_range[0] : 0;
811 hose->last_busno = bus_range ? bus_range[1] : 0xff;
900 812
901 disp_name = NULL; 813 disp_name = NULL;
902#ifdef CONFIG_POWER4 814#ifdef CONFIG_POWER4
903 if (device_is_compatible(dev, "u3-agp")) { 815 if (device_is_compatible(dev, "u3-agp")) {
904 setup_u3_agp(hose, addr); 816 setup_u3_agp(hose);
905 disp_name = "U3-AGP"; 817 disp_name = "U3-AGP";
906 primary = 0; 818 primary = 0;
907 } else if (device_is_compatible(dev, "u3-ht")) { 819 } else if (device_is_compatible(dev, "u3-ht")) {
908 setup_u3_ht(hose, addr); 820 setup_u3_ht(hose);
909 disp_name = "U3-HT"; 821 disp_name = "U3-HT";
910 primary = 1; 822 primary = 1;
911 } else 823 }
912#endif /* CONFIG_POWER4 */ 824 printk(KERN_INFO "Found %s PCI host bridge. Firmware bus number: %d->%d\n",
825 disp_name, hose->first_busno, hose->last_busno);
826#else
913 if (device_is_compatible(dev, "uni-north")) { 827 if (device_is_compatible(dev, "uni-north")) {
914 primary = setup_uninorth(hose, addr); 828 primary = setup_uninorth(hose, addr);
915 disp_name = "UniNorth"; 829 disp_name = "UniNorth";
916 } else if (strcmp(dev->name, "pci") == 0) { 830 } else if (strcmp(dev->name, "pci") == 0) {
917 /* XXX assume this is a mpc106 (grackle) */ 831 /* XXX assume this is a mpc106 (grackle) */
918 setup_grackle(hose); 832 setup_grackle(hose);
919 disp_name = "Grackle (MPC106)"; 833 disp_name = "Grackle (MPC106)";
920 } else if (strcmp(dev->name, "bandit") == 0) { 834 } else if (strcmp(dev->name, "bandit") == 0) {
921 setup_bandit(hose, addr); 835 setup_bandit(hose, addr);
922 disp_name = "Bandit"; 836 disp_name = "Bandit";
923 } else if (strcmp(dev->name, "chaos") == 0) { 837 } else if (strcmp(dev->name, "chaos") == 0) {
924 setup_chaos(hose, addr); 838 setup_chaos(hose, addr);
925 disp_name = "Chaos"; 839 disp_name = "Chaos";
926 primary = 0; 840 primary = 0;
927 } 841 }
928 printk(KERN_INFO "Found %s PCI host bridge at 0x%08lx. Firmware bus number: %d->%d\n", 842 printk(KERN_INFO "Found %s PCI host bridge at 0x%08lx. Firmware bus number: %d->%d\n",
929 disp_name, addr->address, hose->first_busno, hose->last_busno); 843 disp_name, addr->address, hose->first_busno, hose->last_busno);
930 DBG(" ->Hose at 0x%p, cfg_addr=0x%p,cfg_data=0x%p\n", 844#endif
931 hose, hose->cfg_addr, hose->cfg_data); 845 DBG(" ->Hose at 0x%p, cfg_addr=0x%p,cfg_data=0x%p\n",
932 846 hose, hose->cfg_addr, hose->cfg_data);
933 /* Interpret the "ranges" property */ 847
934 /* This also maps the I/O region and sets isa_io/mem_base */ 848 /* Interpret the "ranges" property */
935 pci_process_bridge_OF_ranges(hose, dev, primary); 849 /* This also maps the I/O region and sets isa_io/mem_base */
936 850 pci_process_bridge_OF_ranges(hose, dev, primary);
937 /* Fixup "bus-range" OF property */ 851
938 fixup_bus_range(dev); 852 /* Fixup "bus-range" OF property */
853 fixup_bus_range(dev);
939 854
940 return 0; 855 return 0;
941} 856}
@@ -968,14 +883,28 @@ pmac_pcibios_fixup(void)
968 pcibios_fixup_OF_interrupts(); 883 pcibios_fixup_OF_interrupts();
969} 884}
970 885
971void __init pmac_find_bridges(void) 886#ifdef CONFIG_PPC64
887static void __init pmac_fixup_phb_resources(void)
888{
889 struct pci_controller *hose, *tmp;
890
891 list_for_each_entry_safe(hose, tmp, &hose_list, list_node) {
892 printk(KERN_INFO "PCI Host %d, io start: %lx; io end: %lx\n",
893 hose->global_number,
894 hose->io_resource.start, hose->io_resource.end);
895 }
896}
897#endif
898
899void __init pmac_pci_init(void)
972{ 900{
973 struct device_node *np, *root; 901 struct device_node *np, *root;
974 struct device_node *ht = NULL; 902 struct device_node *ht = NULL;
975 903
976 root = of_find_node_by_path("/"); 904 root = of_find_node_by_path("/");
977 if (root == NULL) { 905 if (root == NULL) {
978 printk(KERN_CRIT "pmac_find_bridges: can't find root of device tree\n"); 906 printk(KERN_CRIT "pmac_pci_init: can't find root "
907 "of device tree\n");
979 return; 908 return;
980 } 909 }
981 for (np = NULL; (np = of_get_next_child(root, np)) != NULL;) { 910 for (np = NULL; (np = of_get_next_child(root, np)) != NULL;) {
@@ -994,22 +923,66 @@ void __init pmac_find_bridges(void)
994 } 923 }
995 of_node_put(root); 924 of_node_put(root);
996 925
926#ifdef CONFIG_PPC64
997 /* Probe HT last as it relies on the agp resources to be already 927 /* Probe HT last as it relies on the agp resources to be already
998 * setup 928 * setup
999 */ 929 */
1000 if (ht && add_bridge(ht) != 0) 930 if (ht && add_bridge(ht) != 0)
1001 of_node_put(ht); 931 of_node_put(ht);
1002 932
933 /*
934 * We need to call pci_setup_phb_io for the HT bridge first
935 * so it gets the I/O port numbers starting at 0, and we
936 * need to call it for the AGP bridge after that so it gets
937 * small positive I/O port numbers.
938 */
939 if (u3_ht)
940 pci_setup_phb_io(u3_ht, 1);
941 if (u3_agp)
942 pci_setup_phb_io(u3_agp, 0);
943
944 /*
945 * On ppc64, fixup the IO resources on our host bridges as
946 * the common code does it only for children of the host bridges
947 */
948 pmac_fixup_phb_resources();
949
950 /* Setup the linkage between OF nodes and PHBs */
951 pci_devs_phb_init();
952
953 /* Fixup the PCI<->OF mapping for U3 AGP due to bus renumbering. We
954 * assume there is no P2P bridge on the AGP bus, which should be a
955 * safe assumptions hopefully.
956 */
957 if (u3_agp) {
958 struct device_node *np = u3_agp->arch_data;
959 PCI_DN(np)->busno = 0xf0;
960 for (np = np->child; np; np = np->sibling)
961 PCI_DN(np)->busno = 0xf0;
962 }
963
964 /* map in PCI I/O space */
965 phbs_remap_io();
966
967 /* pmac_check_ht_link(); */
968
969 /* Tell pci.c to not use the common resource allocation mechanism */
970 pci_probe_only = 1;
971
972 /* Allow all IO */
973 io_page_mask = -1;
974
975#else /* CONFIG_PPC64 */
1003 init_p2pbridge(); 976 init_p2pbridge();
1004 fixup_nec_usb2(); 977 fixup_nec_usb2();
1005 978
1006 /* We are still having some issues with the Xserve G4, enabling 979 /* We are still having some issues with the Xserve G4, enabling
1007 * some offset between bus number and domains for now when we 980 * some offset between bus number and domains for now when we
1008 * assign all busses should help for now 981 * assign all busses should help for now
1009 */ 982 */
1010 if (pci_assign_all_buses) 983 if (pci_assign_all_buses)
1011 pcibios_assign_bus_offset = 0x10; 984 pcibios_assign_bus_offset = 0x10;
1012 985#endif
1013} 986}
1014 987
1015int 988int
@@ -1037,7 +1010,7 @@ pmac_pci_enable_device_hook(struct pci_dev *dev, int initial)
1037 1010
1038 uninorth_child = node->parent && 1011 uninorth_child = node->parent &&
1039 device_is_compatible(node->parent, "uni-north"); 1012 device_is_compatible(node->parent, "uni-north");
1040 1013
1041 /* Firewire & GMAC were disabled after PCI probe, the driver is 1014 /* Firewire & GMAC were disabled after PCI probe, the driver is
1042 * claiming them, we must re-enable them now. 1015 * claiming them, we must re-enable them now.
1043 */ 1016 */
@@ -1057,7 +1030,7 @@ pmac_pci_enable_device_hook(struct pci_dev *dev, int initial)
1057 1030
1058 if (updatecfg) { 1031 if (updatecfg) {
1059 u16 cmd; 1032 u16 cmd;
1060 1033
1061 /* 1034 /*
1062 * Make sure PCI is correctly configured 1035 * Make sure PCI is correctly configured
1063 * 1036 *
@@ -1069,10 +1042,12 @@ pmac_pci_enable_device_hook(struct pci_dev *dev, int initial)
1069 * register the device. 1042 * register the device.
1070 */ 1043 */
1071 pci_read_config_word(dev, PCI_COMMAND, &cmd); 1044 pci_read_config_word(dev, PCI_COMMAND, &cmd);
1072 cmd |= PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | PCI_COMMAND_INVALIDATE; 1045 cmd |= PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER
1073 pci_write_config_word(dev, PCI_COMMAND, cmd); 1046 | PCI_COMMAND_INVALIDATE;
1074 pci_write_config_byte(dev, PCI_LATENCY_TIMER, 16); 1047 pci_write_config_word(dev, PCI_COMMAND, cmd);
1075 pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, pci_cache_line_size); 1048 pci_write_config_byte(dev, PCI_LATENCY_TIMER, 16);
1049 pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE,
1050 L1_CACHE_BYTES >> 2);
1076 } 1051 }
1077 1052
1078 return 0; 1053 return 0;
@@ -1081,8 +1056,7 @@ pmac_pci_enable_device_hook(struct pci_dev *dev, int initial)
1081/* We power down some devices after they have been probed. They'll 1056/* We power down some devices after they have been probed. They'll
1082 * be powered back on later on 1057 * be powered back on later on
1083 */ 1058 */
1084void __init 1059void __init pmac_pcibios_after_init(void)
1085pmac_pcibios_after_init(void)
1086{ 1060{
1087 struct device_node* nd; 1061 struct device_node* nd;
1088 1062
@@ -1125,84 +1099,6 @@ pmac_pcibios_after_init(void)
1125 } 1099 }
1126} 1100}
1127 1101
1128#ifdef CONFIG_PPC64
1129static void __init pmac_fixup_phb_resources(void)
1130{
1131 struct pci_controller *hose, *tmp;
1132
1133 list_for_each_entry_safe(hose, tmp, &hose_list, list_node) {
1134 unsigned long offset = (unsigned long)hose->io_base_virt - pci_io_base;
1135 hose->io_resource.start += offset;
1136 hose->io_resource.end += offset;
1137 printk(KERN_INFO "PCI Host %d, io start: %lx; io end: %lx\n",
1138 hose->global_number,
1139 hose->io_resource.start, hose->io_resource.end);
1140 }
1141}
1142
1143void __init pmac_pci_init(void)
1144{
1145 struct device_node *np, *root;
1146 struct device_node *ht = NULL;
1147
1148 /* Probe root PCI hosts, that is on U3 the AGP host and the
1149 * HyperTransport host. That one is actually "kept" around
1150 * and actually added last as it's resource management relies
1151 * on the AGP resources to have been setup first
1152 */
1153 root = of_find_node_by_path("/");
1154 if (root == NULL) {
1155 printk(KERN_CRIT "pmac_find_bridges: can't find root of device tree\n");
1156 return;
1157 }
1158 for (np = NULL; (np = of_get_next_child(root, np)) != NULL;) {
1159 if (np->name == NULL)
1160 continue;
1161 if (strcmp(np->name, "pci") == 0) {
1162 if (add_bridge(np) == 0)
1163 of_node_get(np);
1164 }
1165 if (strcmp(np->name, "ht") == 0) {
1166 of_node_get(np);
1167 ht = np;
1168 }
1169 }
1170 of_node_put(root);
1171
1172 /* Now setup the HyperTransport host if we found any
1173 */
1174 if (ht && add_bridge(ht) != 0)
1175 of_node_put(ht);
1176
1177 /* Fixup the IO resources on our host bridges as the common code
1178 * does it only for childs of the host bridges
1179 */
1180 pmac_fixup_phb_resources();
1181
1182 /* Setup the linkage between OF nodes and PHBs */
1183 pci_devs_phb_init();
1184
1185 /* Fixup the PCI<->OF mapping for U3 AGP due to bus renumbering. We
1186 * assume there is no P2P bridge on the AGP bus, which should be a
1187 * safe assumptions hopefully.
1188 */
1189 if (u3_agp) {
1190 struct device_node *np = u3_agp->arch_data;
1191 PCI_DN(np)->busno = 0xf0;
1192 for (np = np->child; np; np = np->sibling)
1193 PCI_DN(np)->busno = 0xf0;
1194 }
1195
1196 pmac_check_ht_link();
1197
1198 /* Tell pci.c to not use the common resource allocation mecanism */
1199 pci_probe_only = 1;
1200
1201 /* Allow all IO */
1202 io_page_mask = -1;
1203}
1204#endif
1205
1206#ifdef CONFIG_PPC32 1102#ifdef CONFIG_PPC32
1207void pmac_pci_fixup_cardbus(struct pci_dev* dev) 1103void pmac_pci_fixup_cardbus(struct pci_dev* dev)
1208{ 1104{
@@ -1217,7 +1113,7 @@ void pmac_pci_fixup_cardbus(struct pci_dev* dev)
1217 if (dev->device == PCI_DEVICE_ID_TI_1130 || 1113 if (dev->device == PCI_DEVICE_ID_TI_1130 ||
1218 dev->device == PCI_DEVICE_ID_TI_1131) { 1114 dev->device == PCI_DEVICE_ID_TI_1131) {
1219 u8 val; 1115 u8 val;
1220 /* Enable PCI interrupt */ 1116 /* Enable PCI interrupt */
1221 if (pci_read_config_byte(dev, 0x91, &val) == 0) 1117 if (pci_read_config_byte(dev, 0x91, &val) == 0)
1222 pci_write_config_byte(dev, 0x91, val | 0x30); 1118 pci_write_config_byte(dev, 0x91, val | 0x30);
1223 /* Disable ISA interrupt mode */ 1119 /* Disable ISA interrupt mode */
diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c
index 58017d18db70..0eca17df239e 100644
--- a/arch/powerpc/platforms/powermac/pic.c
+++ b/arch/powerpc/platforms/powermac/pic.c
@@ -430,7 +430,6 @@ void __init pmac_pic_init(void)
430 430
431 printk(KERN_INFO "PowerMac using OpenPIC irq controller at 0x%08x\n", 431 printk(KERN_INFO "PowerMac using OpenPIC irq controller at 0x%08x\n",
432 (unsigned int)irqctrler->addrs[0].address); 432 (unsigned int)irqctrler->addrs[0].address);
433 ppc_md.get_irq = mpic_get_irq;
434 pmac_call_feature(PMAC_FTR_ENABLE_MPIC, irqctrler, 0, 0); 433 pmac_call_feature(PMAC_FTR_ENABLE_MPIC, irqctrler, 0, 0);
435 434
436 prom_get_irq_senses(senses, 0, 128); 435 prom_get_irq_senses(senses, 0, 128);
@@ -483,6 +482,7 @@ void __init pmac_pic_init(void)
483 * a Grand Central nor an OHare, then it's an Heathrow 482 * a Grand Central nor an OHare, then it's an Heathrow
484 * (or Paddington). 483 * (or Paddington).
485 */ 484 */
485 ppc_md.get_irq = pmac_get_irq;
486 if (find_devices("gc")) 486 if (find_devices("gc"))
487 level_mask[0] = GC_LEVEL_MASK; 487 level_mask[0] = GC_LEVEL_MASK;
488 else if (find_devices("ohare")) { 488 else if (find_devices("ohare")) {
diff --git a/arch/powerpc/platforms/powermac/pmac.h b/arch/powerpc/platforms/powermac/pmac.h
index 0a9ba704865e..2ad25e13423e 100644
--- a/arch/powerpc/platforms/powermac/pmac.h
+++ b/arch/powerpc/platforms/powermac/pmac.h
@@ -19,7 +19,7 @@ extern int pmac_set_rtc_time(struct rtc_time *);
19extern void pmac_read_rtc_time(void); 19extern void pmac_read_rtc_time(void);
20extern void pmac_calibrate_decr(void); 20extern void pmac_calibrate_decr(void);
21extern void pmac_pcibios_fixup(void); 21extern void pmac_pcibios_fixup(void);
22extern void pmac_find_bridges(void); 22extern void pmac_pci_init(void);
23extern unsigned long pmac_ide_get_base(int index); 23extern unsigned long pmac_ide_get_base(int index);
24extern void pmac_ide_init_hwif_ports(hw_regs_t *hw, 24extern void pmac_ide_init_hwif_ports(hw_regs_t *hw,
25 unsigned long data_port, unsigned long ctrl_port, int *irq); 25 unsigned long data_port, unsigned long ctrl_port, int *irq);
@@ -41,7 +41,7 @@ extern unsigned long pmac_ide_get_base(int index);
41extern void pmac_ide_init_hwif_ports(hw_regs_t *hw, 41extern void pmac_ide_init_hwif_ports(hw_regs_t *hw,
42 unsigned long data_port, unsigned long ctrl_port, int *irq); 42 unsigned long data_port, unsigned long ctrl_port, int *irq);
43 43
44extern void pmac_nvram_init(void); 44extern int pmac_nvram_init(void);
45 45
46extern struct hw_interrupt_type pmac_pic; 46extern struct hw_interrupt_type pmac_pic;
47 47
diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c
index 0bad53fa36ef..da0cb165dfc6 100644
--- a/arch/powerpc/platforms/powermac/setup.c
+++ b/arch/powerpc/platforms/powermac/setup.c
@@ -1,11 +1,11 @@
1/* 1/*
2 * arch/ppc/platforms/setup.c 2 * Powermac setup and early boot code plus other random bits.
3 * 3 *
4 * PowerPC version 4 * PowerPC version
5 * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) 5 * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
6 * 6 *
7 * Adapted for Power Macintosh by Paul Mackerras 7 * Adapted for Power Macintosh by Paul Mackerras
8 * Copyright (C) 1996 Paul Mackerras (paulus@cs.anu.edu.au) 8 * Copyright (C) 1996 Paul Mackerras (paulus@samba.org)
9 * 9 *
10 * Derived from "arch/alpha/kernel/setup.c" 10 * Derived from "arch/alpha/kernel/setup.c"
11 * Copyright (C) 1995 Linus Torvalds 11 * Copyright (C) 1995 Linus Torvalds
@@ -65,13 +65,16 @@
65#include <asm/mediabay.h> 65#include <asm/mediabay.h>
66#include <asm/machdep.h> 66#include <asm/machdep.h>
67#include <asm/dma.h> 67#include <asm/dma.h>
68#include <asm/bootx.h>
69#include <asm/cputable.h> 68#include <asm/cputable.h>
70#include <asm/btext.h> 69#include <asm/btext.h>
71#include <asm/pmac_feature.h> 70#include <asm/pmac_feature.h>
72#include <asm/time.h> 71#include <asm/time.h>
73#include <asm/of_device.h> 72#include <asm/of_device.h>
74#include <asm/mmu_context.h> 73#include <asm/mmu_context.h>
74#include <asm/iommu.h>
75#include <asm/smu.h>
76#include <asm/pmc.h>
77#include <asm/mpic.h>
75 78
76#include "pmac.h" 79#include "pmac.h"
77 80
@@ -88,16 +91,24 @@ int pmac_newworld = 1;
88static int current_root_goodness = -1; 91static int current_root_goodness = -1;
89 92
90extern int pmac_newworld; 93extern int pmac_newworld;
94extern struct machdep_calls pmac_md;
91 95
92#define DEFAULT_ROOT_DEVICE Root_SDA1 /* sda1 - slightly silly choice */ 96#define DEFAULT_ROOT_DEVICE Root_SDA1 /* sda1 - slightly silly choice */
93 97
94extern void zs_kgdb_hook(int tty_num); 98#ifdef CONFIG_PPC64
95static void ohare_init(void); 99#include <asm/udbg.h>
96#ifdef CONFIG_BOOTX_TEXT 100int sccdbg;
97static void pmac_progress(char *s, unsigned short hex);
98#endif 101#endif
99 102
103extern void zs_kgdb_hook(int tty_num);
104
100sys_ctrler_t sys_ctrler = SYS_CTRLER_UNKNOWN; 105sys_ctrler_t sys_ctrler = SYS_CTRLER_UNKNOWN;
106EXPORT_SYMBOL(sys_ctrler);
107
108#ifdef CONFIG_PMAC_SMU
109unsigned long smu_cmdbuf_abs;
110EXPORT_SYMBOL(smu_cmdbuf_abs);
111#endif
101 112
102#ifdef CONFIG_SMP 113#ifdef CONFIG_SMP
103extern struct smp_ops_t psurge_smp_ops; 114extern struct smp_ops_t psurge_smp_ops;
@@ -191,44 +202,69 @@ static void pmac_show_percpuinfo(struct seq_file *m, int i)
191 return; 202 return;
192 } 203 }
193#endif /* CONFIG_CPU_FREQ_PMAC */ 204#endif /* CONFIG_CPU_FREQ_PMAC */
205#ifdef CONFIG_PPC32
194 of_show_percpuinfo(m, i); 206 of_show_percpuinfo(m, i);
207#endif
195} 208}
196 209
197static volatile u32 *sysctrl_regs; 210#ifndef CONFIG_ADB_CUDA
211int find_via_cuda(void)
212{
213 if (!find_devices("via-cuda"))
214 return 0;
215 printk("WARNING ! Your machine is CUDA-based but your kernel\n");
216 printk(" wasn't compiled with CONFIG_ADB_CUDA option !\n");
217 return 0;
218}
219#endif
198 220
199void __init 221#ifndef CONFIG_ADB_PMU
200pmac_setup_arch(void) 222int find_via_pmu(void)
201{ 223{
202 struct device_node *cpu; 224 if (!find_devices("via-pmu"))
203 int *fp; 225 return 0;
204 unsigned long pvr; 226 printk("WARNING ! Your machine is PMU-based but your kernel\n");
227 printk(" wasn't compiled with CONFIG_ADB_PMU option !\n");
228 return;
229}
230#endif
205 231
206 pvr = PVR_VER(mfspr(SPRN_PVR)); 232#ifndef CONFIG_PMAC_SMU
233int smu_init(void)
234{
235 /* should check and warn if SMU is present */
236 return 0;
237}
238#endif
207 239
208 /* Set loops_per_jiffy to a half-way reasonable value, 240#ifdef CONFIG_PPC32
209 for use until calibrate_delay gets called. */ 241static volatile u32 *sysctrl_regs;
210 cpu = find_type_devices("cpu");
211 if (cpu != 0) {
212 fp = (int *) get_property(cpu, "clock-frequency", NULL);
213 if (fp != 0) {
214 if (pvr == 4 || pvr >= 8)
215 /* 604, G3, G4 etc. */
216 loops_per_jiffy = *fp / HZ;
217 else
218 /* 601, 603, etc. */
219 loops_per_jiffy = *fp / (2*HZ);
220 } else
221 loops_per_jiffy = 50000000 / HZ;
222 }
223 242
243static void __init ohare_init(void)
244{
224 /* this area has the CPU identification register 245 /* this area has the CPU identification register
225 and some registers used by smp boards */ 246 and some registers used by smp boards */
226 sysctrl_regs = (volatile u32 *) ioremap(0xf8000000, 0x1000); 247 sysctrl_regs = (volatile u32 *) ioremap(0xf8000000, 0x1000);
227 ohare_init();
228 248
229 /* Lookup PCI hosts */ 249 /*
230 pmac_find_bridges(); 250 * Turn on the L2 cache.
251 * We assume that we have a PSX memory controller iff
252 * we have an ohare I/O controller.
253 */
254 if (find_devices("ohare") != NULL) {
255 if (((sysctrl_regs[2] >> 24) & 0xf) >= 3) {
256 if (sysctrl_regs[4] & 0x10)
257 sysctrl_regs[4] |= 0x04000020;
258 else
259 sysctrl_regs[4] |= 0x04000000;
260 if(has_l2cache)
261 printk(KERN_INFO "Level 2 cache enabled\n");
262 }
263 }
264}
231 265
266static void __init l2cr_init(void)
267{
232 /* Checks "l2cr-value" property in the registry */ 268 /* Checks "l2cr-value" property in the registry */
233 if (cpu_has_feature(CPU_FTR_L2CR)) { 269 if (cpu_has_feature(CPU_FTR_L2CR)) {
234 struct device_node *np = find_devices("cpus"); 270 struct device_node *np = find_devices("cpus");
@@ -247,68 +283,90 @@ pmac_setup_arch(void)
247 } 283 }
248 284
249 if (ppc_override_l2cr) 285 if (ppc_override_l2cr)
250 printk(KERN_INFO "L2CR overriden (0x%x), backside cache is %s\n", 286 printk(KERN_INFO "L2CR overridden (0x%x), "
251 ppc_override_l2cr_value, (ppc_override_l2cr_value & 0x80000000) 287 "backside cache is %s\n",
288 ppc_override_l2cr_value,
289 (ppc_override_l2cr_value & 0x80000000)
252 ? "enabled" : "disabled"); 290 ? "enabled" : "disabled");
291}
292#endif
293
294void __init pmac_setup_arch(void)
295{
296 struct device_node *cpu;
297 int *fp;
298 unsigned long pvr;
299
300 pvr = PVR_VER(mfspr(SPRN_PVR));
301
302 /* Set loops_per_jiffy to a half-way reasonable value,
303 for use until calibrate_delay gets called. */
304 loops_per_jiffy = 50000000 / HZ;
305 cpu = of_find_node_by_type(NULL, "cpu");
306 if (cpu != NULL) {
307 fp = (int *) get_property(cpu, "clock-frequency", NULL);
308 if (fp != NULL) {
309 if (pvr >= 0x30 && pvr < 0x80)
310 /* PPC970 etc. */
311 loops_per_jiffy = *fp / (3 * HZ);
312 else if (pvr == 4 || pvr >= 8)
313 /* 604, G3, G4 etc. */
314 loops_per_jiffy = *fp / HZ;
315 else
316 /* 601, 603, etc. */
317 loops_per_jiffy = *fp / (2 * HZ);
318 }
319 of_node_put(cpu);
320 }
321
322 /* Lookup PCI hosts */
323 pmac_pci_init();
324
325#ifdef CONFIG_PPC32
326 ohare_init();
327 l2cr_init();
328#endif /* CONFIG_PPC32 */
329
330#ifdef CONFIG_PPC64
331 /* Probe motherboard chipset */
332 /* this is done earlier in setup_arch for 32-bit */
333 pmac_feature_init();
334
335 /* We can NAP */
336 powersave_nap = 1;
337 printk(KERN_INFO "Using native/NAP idle loop\n");
338#endif
253 339
254#ifdef CONFIG_KGDB 340#ifdef CONFIG_KGDB
255 zs_kgdb_hook(0); 341 zs_kgdb_hook(0);
256#endif 342#endif
257 343
258#ifdef CONFIG_ADB_CUDA
259 find_via_cuda(); 344 find_via_cuda();
260#else
261 if (find_devices("via-cuda")) {
262 printk("WARNING ! Your machine is Cuda based but your kernel\n");
263 printk(" wasn't compiled with CONFIG_ADB_CUDA option !\n");
264 }
265#endif
266#ifdef CONFIG_ADB_PMU
267 find_via_pmu(); 345 find_via_pmu();
268#else 346 smu_init();
269 if (find_devices("via-pmu")) { 347
270 printk("WARNING ! Your machine is PMU based but your kernel\n");
271 printk(" wasn't compiled with CONFIG_ADB_PMU option !\n");
272 }
273#endif
274#ifdef CONFIG_NVRAM 348#ifdef CONFIG_NVRAM
275 pmac_nvram_init(); 349 pmac_nvram_init();
276#endif 350#endif
351
352#ifdef CONFIG_PPC32
277#ifdef CONFIG_BLK_DEV_INITRD 353#ifdef CONFIG_BLK_DEV_INITRD
278 if (initrd_start) 354 if (initrd_start)
279 ROOT_DEV = Root_RAM0; 355 ROOT_DEV = Root_RAM0;
280 else 356 else
281#endif 357#endif
282 ROOT_DEV = DEFAULT_ROOT_DEVICE; 358 ROOT_DEV = DEFAULT_ROOT_DEVICE;
359#endif
283 360
284#ifdef CONFIG_SMP 361#ifdef CONFIG_SMP
285 /* Check for Core99 */ 362 /* Check for Core99 */
286 if (find_devices("uni-n") || find_devices("u3")) 363 if (find_devices("uni-n") || find_devices("u3"))
287 smp_ops = &core99_smp_ops; 364 smp_ops = &core99_smp_ops;
365#ifdef CONFIG_PPC32
288 else 366 else
289 smp_ops = &psurge_smp_ops; 367 smp_ops = &psurge_smp_ops;
368#endif
290#endif /* CONFIG_SMP */ 369#endif /* CONFIG_SMP */
291
292 pci_create_OF_bus_map();
293}
294
295static void __init ohare_init(void)
296{
297 /*
298 * Turn on the L2 cache.
299 * We assume that we have a PSX memory controller iff
300 * we have an ohare I/O controller.
301 */
302 if (find_devices("ohare") != NULL) {
303 if (((sysctrl_regs[2] >> 24) & 0xf) >= 3) {
304 if (sysctrl_regs[4] & 0x10)
305 sysctrl_regs[4] |= 0x04000020;
306 else
307 sysctrl_regs[4] |= 0x04000000;
308 if(has_l2cache)
309 printk(KERN_INFO "Level 2 cache enabled\n");
310 }
311 }
312} 370}
313 371
314char *bootpath; 372char *bootpath;
@@ -319,8 +377,7 @@ int boot_part;
319extern dev_t boot_dev; 377extern dev_t boot_dev;
320 378
321#ifdef CONFIG_SCSI 379#ifdef CONFIG_SCSI
322void __init 380void __init note_scsi_host(struct device_node *node, void *host)
323note_scsi_host(struct device_node *node, void *host)
324{ 381{
325 int l; 382 int l;
326 char *p; 383 char *p;
@@ -351,8 +408,7 @@ EXPORT_SYMBOL(note_scsi_host);
351#endif 408#endif
352 409
353#if defined(CONFIG_BLK_DEV_IDE) && defined(CONFIG_BLK_DEV_IDE_PMAC) 410#if defined(CONFIG_BLK_DEV_IDE) && defined(CONFIG_BLK_DEV_IDE_PMAC)
354static dev_t __init 411static dev_t __init find_ide_boot(void)
355find_ide_boot(void)
356{ 412{
357 char *p; 413 char *p;
358 int n; 414 int n;
@@ -369,15 +425,13 @@ find_ide_boot(void)
369} 425}
370#endif /* CONFIG_BLK_DEV_IDE && CONFIG_BLK_DEV_IDE_PMAC */ 426#endif /* CONFIG_BLK_DEV_IDE && CONFIG_BLK_DEV_IDE_PMAC */
371 427
372static void __init 428static void __init find_boot_device(void)
373find_boot_device(void)
374{ 429{
375#if defined(CONFIG_BLK_DEV_IDE) && defined(CONFIG_BLK_DEV_IDE_PMAC) 430#if defined(CONFIG_BLK_DEV_IDE) && defined(CONFIG_BLK_DEV_IDE_PMAC)
376 boot_dev = find_ide_boot(); 431 boot_dev = find_ide_boot();
377#endif 432#endif
378} 433}
379 434
380static int initializing = 1;
381/* TODO: Merge the suspend-to-ram with the common code !!! 435/* TODO: Merge the suspend-to-ram with the common code !!!
382 * currently, this is a stub implementation for suspend-to-disk 436 * currently, this is a stub implementation for suspend-to-disk
383 * only 437 * only
@@ -428,6 +482,8 @@ static struct pm_ops pmac_pm_ops = {
428 482
429#endif /* CONFIG_SOFTWARE_SUSPEND */ 483#endif /* CONFIG_SOFTWARE_SUSPEND */
430 484
485static int initializing = 1;
486
431static int pmac_late_init(void) 487static int pmac_late_init(void)
432{ 488{
433 initializing = 0; 489 initializing = 0;
@@ -440,8 +496,7 @@ static int pmac_late_init(void)
440late_initcall(pmac_late_init); 496late_initcall(pmac_late_init);
441 497
442/* can't be __init - can be called whenever a disk is first accessed */ 498/* can't be __init - can be called whenever a disk is first accessed */
443void 499void note_bootable_part(dev_t dev, int part, int goodness)
444note_bootable_part(dev_t dev, int part, int goodness)
445{ 500{
446 static int found_boot = 0; 501 static int found_boot = 0;
447 char *p; 502 char *p;
@@ -466,52 +521,68 @@ note_bootable_part(dev_t dev, int part, int goodness)
466 } 521 }
467} 522}
468 523
469static void
470pmac_restart(char *cmd)
471{
472#ifdef CONFIG_ADB_CUDA 524#ifdef CONFIG_ADB_CUDA
525static void cuda_restart(void)
526{
473 struct adb_request req; 527 struct adb_request req;
474#endif /* CONFIG_ADB_CUDA */
475 528
529 cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_RESET_SYSTEM);
530 for (;;)
531 cuda_poll();
532}
533
534static void cuda_shutdown(void)
535{
536 struct adb_request req;
537
538 cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_POWERDOWN);
539 for (;;)
540 cuda_poll();
541}
542
543#else
544#define cuda_restart()
545#define cuda_shutdown()
546#endif
547
548#ifndef CONFIG_ADB_PMU
549#define pmu_restart()
550#define pmu_shutdown()
551#endif
552
553#ifndef CONFIG_PMAC_SMU
554#define smu_restart()
555#define smu_shutdown()
556#endif
557
558static void pmac_restart(char *cmd)
559{
476 switch (sys_ctrler) { 560 switch (sys_ctrler) {
477#ifdef CONFIG_ADB_CUDA
478 case SYS_CTRLER_CUDA: 561 case SYS_CTRLER_CUDA:
479 cuda_request(&req, NULL, 2, CUDA_PACKET, 562 cuda_restart();
480 CUDA_RESET_SYSTEM);
481 for (;;)
482 cuda_poll();
483 break; 563 break;
484#endif /* CONFIG_ADB_CUDA */
485#ifdef CONFIG_ADB_PMU
486 case SYS_CTRLER_PMU: 564 case SYS_CTRLER_PMU:
487 pmu_restart(); 565 pmu_restart();
488 break; 566 break;
489#endif /* CONFIG_ADB_PMU */ 567 case SYS_CTRLER_SMU:
568 smu_restart();
569 break;
490 default: ; 570 default: ;
491 } 571 }
492} 572}
493 573
494static void 574static void pmac_power_off(void)
495pmac_power_off(void)
496{ 575{
497#ifdef CONFIG_ADB_CUDA
498 struct adb_request req;
499#endif /* CONFIG_ADB_CUDA */
500
501 switch (sys_ctrler) { 576 switch (sys_ctrler) {
502#ifdef CONFIG_ADB_CUDA
503 case SYS_CTRLER_CUDA: 577 case SYS_CTRLER_CUDA:
504 cuda_request(&req, NULL, 2, CUDA_PACKET, 578 cuda_shutdown();
505 CUDA_POWERDOWN);
506 for (;;)
507 cuda_poll();
508 break; 579 break;
509#endif /* CONFIG_ADB_CUDA */
510#ifdef CONFIG_ADB_PMU
511 case SYS_CTRLER_PMU: 580 case SYS_CTRLER_PMU:
512 pmu_shutdown(); 581 pmu_shutdown();
513 break; 582 break;
514#endif /* CONFIG_ADB_PMU */ 583 case SYS_CTRLER_SMU:
584 smu_shutdown();
585 break;
515 default: ; 586 default: ;
516 } 587 }
517} 588}
@@ -522,37 +593,17 @@ pmac_halt(void)
522 pmac_power_off(); 593 pmac_power_off();
523} 594}
524 595
596#ifdef CONFIG_PPC32
525void __init pmac_init(void) 597void __init pmac_init(void)
526{ 598{
527 /* isa_io_base gets set in pmac_find_bridges */ 599 /* isa_io_base gets set in pmac_pci_init */
528 isa_mem_base = PMAC_ISA_MEM_BASE; 600 isa_mem_base = PMAC_ISA_MEM_BASE;
529 pci_dram_offset = PMAC_PCI_DRAM_OFFSET; 601 pci_dram_offset = PMAC_PCI_DRAM_OFFSET;
530 ISA_DMA_THRESHOLD = ~0L; 602 ISA_DMA_THRESHOLD = ~0L;
531 DMA_MODE_READ = 1; 603 DMA_MODE_READ = 1;
532 DMA_MODE_WRITE = 2; 604 DMA_MODE_WRITE = 2;
533 605
534 ppc_md.setup_arch = pmac_setup_arch; 606 ppc_md = pmac_md;
535 ppc_md.show_cpuinfo = pmac_show_cpuinfo;
536 ppc_md.show_percpuinfo = pmac_show_percpuinfo;
537 ppc_md.init_IRQ = pmac_pic_init;
538 ppc_md.get_irq = pmac_get_irq; /* Changed later on ... */
539
540 ppc_md.pcibios_fixup = pmac_pcibios_fixup;
541 ppc_md.pcibios_enable_device_hook = pmac_pci_enable_device_hook;
542 ppc_md.pcibios_after_init = pmac_pcibios_after_init;
543 ppc_md.phys_mem_access_prot = pci_phys_mem_access_prot;
544
545 ppc_md.restart = pmac_restart;
546 ppc_md.power_off = pmac_power_off;
547 ppc_md.halt = pmac_halt;
548
549 ppc_md.time_init = pmac_time_init;
550 ppc_md.set_rtc_time = pmac_set_rtc_time;
551 ppc_md.get_rtc_time = pmac_get_rtc_time;
552 ppc_md.get_boot_time = pmac_get_boot_time;
553 ppc_md.calibrate_decr = pmac_calibrate_decr;
554
555 ppc_md.feature_call = pmac_do_feature_call;
556 607
557#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE) 608#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
558#ifdef CONFIG_BLK_DEV_IDE_PMAC 609#ifdef CONFIG_BLK_DEV_IDE_PMAC
@@ -561,27 +612,62 @@ void __init pmac_init(void)
561#endif /* CONFIG_BLK_DEV_IDE_PMAC */ 612#endif /* CONFIG_BLK_DEV_IDE_PMAC */
562#endif /* defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE) */ 613#endif /* defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE) */
563 614
564#ifdef CONFIG_BOOTX_TEXT
565 ppc_md.progress = pmac_progress;
566#endif /* CONFIG_BOOTX_TEXT */
567
568 if (ppc_md.progress) ppc_md.progress("pmac_init(): exit", 0); 615 if (ppc_md.progress) ppc_md.progress("pmac_init(): exit", 0);
569 616
570} 617}
618#endif
571 619
572#ifdef CONFIG_BOOTX_TEXT 620/*
573static void __init 621 * Early initialization.
574pmac_progress(char *s, unsigned short hex) 622 */
623static void __init pmac_init_early(void)
624{
625#ifdef CONFIG_PPC64
626 /* Initialize hash table, from now on, we can take hash faults
627 * and call ioremap
628 */
629 hpte_init_native();
630
631 /* Init SCC */
632 if (strstr(cmd_line, "sccdbg")) {
633 sccdbg = 1;
634 udbg_init_scc(NULL);
635 }
636
637 /* Setup interrupt mapping options */
638 ppc64_interrupt_controller = IC_OPEN_PIC;
639
640 iommu_init_early_u3();
641#endif
642}
643
644static void __init pmac_progress(char *s, unsigned short hex)
575{ 645{
646#ifdef CONFIG_PPC64
647 if (sccdbg) {
648 udbg_puts(s);
649 udbg_puts("\n");
650 return;
651 }
652#endif
653#ifdef CONFIG_BOOTX_TEXT
576 if (boot_text_mapped) { 654 if (boot_text_mapped) {
577 btext_drawstring(s); 655 btext_drawstring(s);
578 btext_drawchar('\n'); 656 btext_drawchar('\n');
579 } 657 }
580}
581#endif /* CONFIG_BOOTX_TEXT */ 658#endif /* CONFIG_BOOTX_TEXT */
659}
582 660
583static int __init 661/*
584pmac_declare_of_platform_devices(void) 662 * pmac has no legacy IO, anything calling this function has to
663 * fail or bad things will happen
664 */
665static int pmac_check_legacy_ioport(unsigned int baseport)
666{
667 return -ENODEV;
668}
669
670static int __init pmac_declare_of_platform_devices(void)
585{ 671{
586 struct device_node *np; 672 struct device_node *np;
587 673
@@ -594,6 +680,13 @@ pmac_declare_of_platform_devices(void)
594 break; 680 break;
595 } 681 }
596 } 682 }
683 np = find_devices("valkyrie");
684 if (np)
685 of_platform_device_create(np, "valkyrie", NULL);
686 np = find_devices("platinum");
687 if (np)
688 of_platform_device_create(np, "platinum", NULL);
689
597 np = find_devices("u3"); 690 np = find_devices("u3");
598 if (np) { 691 if (np) {
599 for (np = np->child; np != NULL; np = np->sibling) 692 for (np = np->child; np != NULL; np = np->sibling)
@@ -603,15 +696,92 @@ pmac_declare_of_platform_devices(void)
603 break; 696 break;
604 } 697 }
605 } 698 }
606 699 np = of_find_node_by_type(NULL, "smu");
607 np = find_devices("valkyrie"); 700 if (np) {
608 if (np) 701 of_platform_device_create(np, "smu", NULL);
609 of_platform_device_create(np, "valkyrie", NULL); 702 of_node_put(np);
610 np = find_devices("platinum"); 703 }
611 if (np)
612 of_platform_device_create(np, "platinum", NULL);
613 704
614 return 0; 705 return 0;
615} 706}
616 707
617device_initcall(pmac_declare_of_platform_devices); 708device_initcall(pmac_declare_of_platform_devices);
709
710/*
711 * Called very early, MMU is off, device-tree isn't unflattened
712 */
713static int __init pmac_probe(int platform)
714{
715#ifdef CONFIG_PPC64
716 if (platform != PLATFORM_POWERMAC)
717 return 0;
718
719 /*
720 * On U3, the DART (iommu) must be allocated now since it
721 * has an impact on htab_initialize (due to the large page it
722 * occupies having to be broken up so the DART itself is not
723 * part of the cacheable linar mapping
724 */
725 alloc_u3_dart_table();
726#endif
727
728#ifdef CONFIG_PMAC_SMU
729 /*
730 * SMU based G5s need some memory below 2Gb, at least the current
731 * driver needs that. We have to allocate it now. We allocate 4k
732 * (1 small page) for now.
733 */
734 smu_cmdbuf_abs = lmb_alloc_base(4096, 4096, 0x80000000UL);
735#endif /* CONFIG_PMAC_SMU */
736
737 return 1;
738}
739
740#ifdef CONFIG_PPC64
741static int pmac_probe_mode(struct pci_bus *bus)
742{
743 struct device_node *node = bus->sysdata;
744
745 /* We need to use normal PCI probing for the AGP bus,
746 since the device for the AGP bridge isn't in the tree. */
747 if (bus->self == NULL && device_is_compatible(node, "u3-agp"))
748 return PCI_PROBE_NORMAL;
749
750 return PCI_PROBE_DEVTREE;
751}
752#endif
753
754struct machdep_calls __initdata pmac_md = {
755#if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PPC64)
756 .cpu_die = generic_mach_cpu_die,
757#endif
758 .probe = pmac_probe,
759 .setup_arch = pmac_setup_arch,
760 .init_early = pmac_init_early,
761 .show_cpuinfo = pmac_show_cpuinfo,
762 .show_percpuinfo = pmac_show_percpuinfo,
763 .init_IRQ = pmac_pic_init,
764 .get_irq = mpic_get_irq, /* changed later */
765 .pcibios_fixup = pmac_pcibios_fixup,
766 .restart = pmac_restart,
767 .power_off = pmac_power_off,
768 .halt = pmac_halt,
769 .time_init = pmac_time_init,
770 .get_boot_time = pmac_get_boot_time,
771 .set_rtc_time = pmac_set_rtc_time,
772 .get_rtc_time = pmac_get_rtc_time,
773 .calibrate_decr = pmac_calibrate_decr,
774 .feature_call = pmac_do_feature_call,
775 .check_legacy_ioport = pmac_check_legacy_ioport,
776 .progress = pmac_progress,
777#ifdef CONFIG_PPC64
778 .pci_probe_mode = pmac_probe_mode,
779 .idle_loop = native_idle,
780 .enable_pmcs = power4_enable_pmcs,
781#endif
782#ifdef CONFIG_PPC32
783 .pcibios_enable_device_hook = pmac_pci_enable_device_hook,
784 .pcibios_after_init = pmac_pcibios_after_init,
785 .phys_mem_access_prot = pci_phys_mem_access_prot,
786#endif
787};
diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c
index ccaa0534d60f..e1f9443cc872 100644
--- a/arch/powerpc/platforms/powermac/smp.c
+++ b/arch/powerpc/platforms/powermac/smp.c
@@ -44,20 +44,33 @@
44#include <asm/io.h> 44#include <asm/io.h>
45#include <asm/prom.h> 45#include <asm/prom.h>
46#include <asm/smp.h> 46#include <asm/smp.h>
47#include <asm/residual.h>
48#include <asm/machdep.h> 47#include <asm/machdep.h>
49#include <asm/pmac_feature.h> 48#include <asm/pmac_feature.h>
50#include <asm/time.h> 49#include <asm/time.h>
51#include <asm/mpic.h> 50#include <asm/mpic.h>
52#include <asm/cacheflush.h> 51#include <asm/cacheflush.h>
53#include <asm/keylargo.h> 52#include <asm/keylargo.h>
53#include <asm/pmac_low_i2c.h>
54
55#undef DEBUG
56
57#ifdef DEBUG
58#define DBG(fmt...) udbg_printf(fmt)
59#else
60#define DBG(fmt...)
61#endif
62
63extern void __secondary_start_pmac_0(void);
64
65#ifdef CONFIG_PPC32
66
67/* Sync flag for HW tb sync */
68static volatile int sec_tb_reset = 0;
54 69
55/* 70/*
56 * Powersurge (old powermac SMP) support. 71 * Powersurge (old powermac SMP) support.
57 */ 72 */
58 73
59extern void __secondary_start_pmac_0(void);
60
61/* Addresses for powersurge registers */ 74/* Addresses for powersurge registers */
62#define HAMMERHEAD_BASE 0xf8000000 75#define HAMMERHEAD_BASE 0xf8000000
63#define HHEAD_CONFIG 0x90 76#define HHEAD_CONFIG 0x90
@@ -106,47 +119,6 @@ static volatile u32 __iomem *psurge_start;
106/* what sort of powersurge board we have */ 119/* what sort of powersurge board we have */
107static int psurge_type = PSURGE_NONE; 120static int psurge_type = PSURGE_NONE;
108 121
109/* L2 and L3 cache settings to pass from CPU0 to CPU1 */
110volatile static long int core99_l2_cache;
111volatile static long int core99_l3_cache;
112
113/* Timebase freeze GPIO */
114static unsigned int core99_tb_gpio;
115
116/* Sync flag for HW tb sync */
117static volatile int sec_tb_reset = 0;
118static unsigned int pri_tb_hi, pri_tb_lo;
119static unsigned int pri_tb_stamp;
120
121static void __devinit core99_init_caches(int cpu)
122{
123 if (!cpu_has_feature(CPU_FTR_L2CR))
124 return;
125
126 if (cpu == 0) {
127 core99_l2_cache = _get_L2CR();
128 printk("CPU0: L2CR is %lx\n", core99_l2_cache);
129 } else {
130 printk("CPU%d: L2CR was %lx\n", cpu, _get_L2CR());
131 _set_L2CR(0);
132 _set_L2CR(core99_l2_cache);
133 printk("CPU%d: L2CR set to %lx\n", cpu, core99_l2_cache);
134 }
135
136 if (!cpu_has_feature(CPU_FTR_L3CR))
137 return;
138
139 if (cpu == 0){
140 core99_l3_cache = _get_L3CR();
141 printk("CPU0: L3CR is %lx\n", core99_l3_cache);
142 } else {
143 printk("CPU%d: L3CR was %lx\n", cpu, _get_L3CR());
144 _set_L3CR(0);
145 _set_L3CR(core99_l3_cache);
146 printk("CPU%d: L3CR set to %lx\n", cpu, core99_l3_cache);
147 }
148}
149
150/* 122/*
151 * Set and clear IPIs for powersurge. 123 * Set and clear IPIs for powersurge.
152 */ 124 */
@@ -436,151 +408,188 @@ void __init smp_psurge_give_timebase(void)
436 /* Dummy implementation */ 408 /* Dummy implementation */
437} 409}
438 410
439static int __init smp_core99_probe(void) 411/* PowerSurge-style Macs */
440{ 412struct smp_ops_t psurge_smp_ops = {
441#ifdef CONFIG_6xx 413 .message_pass = smp_psurge_message_pass,
442 extern int powersave_nap; 414 .probe = smp_psurge_probe,
443#endif 415 .kick_cpu = smp_psurge_kick_cpu,
444 struct device_node *cpus, *firstcpu; 416 .setup_cpu = smp_psurge_setup_cpu,
445 int i, ncpus = 0, boot_cpu = -1; 417 .give_timebase = smp_psurge_give_timebase,
446 u32 *tbprop = NULL; 418 .take_timebase = smp_psurge_take_timebase,
447 419};
448 if (ppc_md.progress) ppc_md.progress("smp_core99_probe", 0x345); 420#endif /* CONFIG_PPC32 - actually powersurge support */
449 cpus = firstcpu = find_type_devices("cpu");
450 while(cpus != NULL) {
451 u32 *regprop = (u32 *)get_property(cpus, "reg", NULL);
452 char *stateprop = (char *)get_property(cpus, "state", NULL);
453 if (regprop != NULL && stateprop != NULL &&
454 !strncmp(stateprop, "running", 7))
455 boot_cpu = *regprop;
456 ++ncpus;
457 cpus = cpus->next;
458 }
459 if (boot_cpu == -1)
460 printk(KERN_WARNING "Couldn't detect boot CPU !\n");
461 if (boot_cpu != 0)
462 printk(KERN_WARNING "Boot CPU is %d, unsupported setup !\n", boot_cpu);
463 421
464 if (machine_is_compatible("MacRISC4")) { 422#ifdef CONFIG_PPC64
465 extern struct smp_ops_t core99_smp_ops; 423/*
424 * G5s enable/disable the timebase via an i2c-connected clock chip.
425 */
426static struct device_node *pmac_tb_clock_chip_host;
427static u8 pmac_tb_pulsar_addr;
428static void (*pmac_tb_freeze)(int freeze);
429static DEFINE_SPINLOCK(timebase_lock);
430static unsigned long timebase;
466 431
467 core99_smp_ops.take_timebase = smp_generic_take_timebase; 432static void smp_core99_cypress_tb_freeze(int freeze)
468 core99_smp_ops.give_timebase = smp_generic_give_timebase; 433{
469 } else { 434 u8 data;
470 if (firstcpu != NULL) 435 int rc;
471 tbprop = (u32 *)get_property(firstcpu, "timebase-enable", NULL);
472 if (tbprop)
473 core99_tb_gpio = *tbprop;
474 else
475 core99_tb_gpio = KL_GPIO_TB_ENABLE;
476 }
477 436
478 if (ncpus > 1) { 437 /* Strangely, the device-tree says address is 0xd2, but darwin
479 mpic_request_ipis(); 438 * accesses 0xd0 ...
480 for (i = 1; i < ncpus; ++i) 439 */
481 smp_hw_index[i] = i; 440 pmac_low_i2c_setmode(pmac_tb_clock_chip_host, pmac_low_i2c_mode_combined);
482#ifdef CONFIG_6xx 441 rc = pmac_low_i2c_xfer(pmac_tb_clock_chip_host,
483 powersave_nap = 0; 442 0xd0 | pmac_low_i2c_read,
484#endif 443 0x81, &data, 1);
485 core99_init_caches(0); 444 if (rc != 0)
445 goto bail;
446
447 data = (data & 0xf3) | (freeze ? 0x00 : 0x0c);
448
449 pmac_low_i2c_setmode(pmac_tb_clock_chip_host, pmac_low_i2c_mode_stdsub);
450 rc = pmac_low_i2c_xfer(pmac_tb_clock_chip_host,
451 0xd0 | pmac_low_i2c_write,
452 0x81, &data, 1);
453
454 bail:
455 if (rc != 0) {
456 printk("Cypress Timebase %s rc: %d\n",
457 freeze ? "freeze" : "unfreeze", rc);
458 panic("Timebase freeze failed !\n");
486 } 459 }
487
488 return ncpus;
489} 460}
490 461
491static void __devinit smp_core99_kick_cpu(int nr)
492{
493 unsigned long save_vector, new_vector;
494 unsigned long flags;
495 462
496 volatile unsigned long *vector 463static void smp_core99_pulsar_tb_freeze(int freeze)
497 = ((volatile unsigned long *)(KERNELBASE+0x100)); 464{
498 if (nr < 0 || nr > 3) 465 u8 data;
499 return; 466 int rc;
500 if (ppc_md.progress) ppc_md.progress("smp_core99_kick_cpu", 0x346); 467
468 pmac_low_i2c_setmode(pmac_tb_clock_chip_host, pmac_low_i2c_mode_combined);
469 rc = pmac_low_i2c_xfer(pmac_tb_clock_chip_host,
470 pmac_tb_pulsar_addr | pmac_low_i2c_read,
471 0x2e, &data, 1);
472 if (rc != 0)
473 goto bail;
474
475 data = (data & 0x88) | (freeze ? 0x11 : 0x22);
476
477 pmac_low_i2c_setmode(pmac_tb_clock_chip_host, pmac_low_i2c_mode_stdsub);
478 rc = pmac_low_i2c_xfer(pmac_tb_clock_chip_host,
479 pmac_tb_pulsar_addr | pmac_low_i2c_write,
480 0x2e, &data, 1);
481 bail:
482 if (rc != 0) {
483 printk(KERN_ERR "Pulsar Timebase %s rc: %d\n",
484 freeze ? "freeze" : "unfreeze", rc);
485 panic("Timebase freeze failed !\n");
486 }
487}
501 488
502 local_irq_save(flags);
503 local_irq_disable();
504 489
505 /* Save reset vector */ 490static void smp_core99_give_timebase(void)
506 save_vector = *vector; 491{
492 /* Open i2c bus for synchronous access */
493 if (pmac_low_i2c_open(pmac_tb_clock_chip_host, 0))
494 panic("Can't open i2c for TB sync !\n");
507 495
508 /* Setup fake reset vector that does 496 spin_lock(&timebase_lock);
509 * b __secondary_start_pmac_0 + nr*8 - KERNELBASE 497 (*pmac_tb_freeze)(1);
510 */ 498 mb();
511 new_vector = (unsigned long) __secondary_start_pmac_0 + nr * 8; 499 timebase = get_tb();
512 *vector = 0x48000002 + new_vector - KERNELBASE; 500 spin_unlock(&timebase_lock);
513 501
514 /* flush data cache and inval instruction cache */ 502 while (timebase)
515 flush_icache_range((unsigned long) vector, (unsigned long) vector + 4); 503 barrier();
516 504
517 /* Put some life in our friend */ 505 spin_lock(&timebase_lock);
518 pmac_call_feature(PMAC_FTR_RESET_CPU, NULL, nr, 0); 506 (*pmac_tb_freeze)(0);
507 spin_unlock(&timebase_lock);
519 508
520 /* FIXME: We wait a bit for the CPU to take the exception, I should 509 /* Close i2c bus */
521 * instead wait for the entry code to set something for me. Well, 510 pmac_low_i2c_close(pmac_tb_clock_chip_host);
522 * ideally, all that crap will be done in prom.c and the CPU left 511}
523 * in a RAM-based wait loop like CHRP.
524 */
525 mdelay(1);
526 512
527 /* Restore our exception vector */
528 *vector = save_vector;
529 flush_icache_range((unsigned long) vector, (unsigned long) vector + 4);
530 513
531 local_irq_restore(flags); 514static void __devinit smp_core99_take_timebase(void)
532 if (ppc_md.progress) ppc_md.progress("smp_core99_kick_cpu done", 0x347); 515{
516 while (!timebase)
517 barrier();
518 spin_lock(&timebase_lock);
519 set_tb(timebase >> 32, timebase & 0xffffffff);
520 timebase = 0;
521 spin_unlock(&timebase_lock);
533} 522}
534 523
535static void __devinit smp_core99_setup_cpu(int cpu_nr) 524static void __init smp_core99_setup(int ncpus)
536{ 525{
537 /* Setup L2/L3 */ 526 struct device_node *cc = NULL;
538 if (cpu_nr != 0) 527 struct device_node *p;
539 core99_init_caches(cpu_nr); 528 u32 *reg;
529 int ok;
530
531 /* HW sync only on these platforms */
532 if (!machine_is_compatible("PowerMac7,2") &&
533 !machine_is_compatible("PowerMac7,3") &&
534 !machine_is_compatible("RackMac3,1"))
535 return;
540 536
541 /* Setup openpic */ 537 /* Look for the clock chip */
542 mpic_setup_this_cpu(); 538 while ((cc = of_find_node_by_name(cc, "i2c-hwclock")) != NULL) {
539 p = of_get_parent(cc);
540 ok = p && device_is_compatible(p, "uni-n-i2c");
541 of_node_put(p);
542 if (!ok)
543 continue;
543 544
544 if (cpu_nr == 0) { 545 reg = (u32 *)get_property(cc, "reg", NULL);
545#ifdef CONFIG_POWER4 546 if (reg == NULL)
546 extern void g5_phy_disable_cpu1(void); 547 continue;
547 548
548 /* If we didn't start the second CPU, we must take 549 switch (*reg) {
549 * it off the bus 550 case 0xd2:
550 */ 551 if (device_is_compatible(cc, "pulsar-legacy-slewing")) {
551 if (machine_is_compatible("MacRISC4") && 552 pmac_tb_freeze = smp_core99_pulsar_tb_freeze;
552 num_online_cpus() < 2) 553 pmac_tb_pulsar_addr = 0xd2;
553 g5_phy_disable_cpu1(); 554 printk(KERN_INFO "Timebase clock is Pulsar chip\n");
554#endif /* CONFIG_POWER4 */ 555 } else if (device_is_compatible(cc, "cy28508")) {
555 if (ppc_md.progress) ppc_md.progress("core99_setup_cpu 0 done", 0x349); 556 pmac_tb_freeze = smp_core99_cypress_tb_freeze;
557 printk(KERN_INFO "Timebase clock is Cypress chip\n");
558 }
559 break;
560 case 0xd4:
561 pmac_tb_freeze = smp_core99_pulsar_tb_freeze;
562 pmac_tb_pulsar_addr = 0xd4;
563 printk(KERN_INFO "Timebase clock is Pulsar chip\n");
564 break;
565 }
566 if (pmac_tb_freeze != NULL) {
567 pmac_tb_clock_chip_host = of_get_parent(cc);
568 of_node_put(cc);
569 break;
570 }
571 }
572 if (pmac_tb_freeze == NULL) {
573 smp_ops->give_timebase = smp_generic_give_timebase;
574 smp_ops->take_timebase = smp_generic_take_timebase;
556 } 575 }
557} 576}
558 577
559/* not __init, called in sleep/wakeup code */ 578/* nothing to do here, caches are already set up by service processor */
560void smp_core99_take_timebase(void) 579static inline void __devinit core99_init_caches(int cpu)
561{ 580{
562 unsigned long flags; 581}
563 582
564 /* tell the primary we're here */ 583#else /* CONFIG_PPC64 */
565 sec_tb_reset = 1;
566 mb();
567 584
568 /* wait for the primary to set pri_tb_hi/lo */ 585/*
569 while (sec_tb_reset < 2) 586 * SMP G4 powermacs use a GPIO to enable/disable the timebase.
570 mb(); 587 */
571 588
572 /* set our stuff the same as the primary */ 589static unsigned int core99_tb_gpio; /* Timebase freeze GPIO */
573 local_irq_save(flags);
574 set_dec(1);
575 set_tb(pri_tb_hi, pri_tb_lo);
576 last_jiffy_stamp(smp_processor_id()) = pri_tb_stamp;
577 mb();
578 590
579 /* tell the primary we're done */ 591static unsigned int pri_tb_hi, pri_tb_lo;
580 sec_tb_reset = 0; 592static unsigned int pri_tb_stamp;
581 mb();
582 local_irq_restore(flags);
583}
584 593
585/* not __init, called in sleep/wakeup code */ 594/* not __init, called in sleep/wakeup code */
586void smp_core99_give_timebase(void) 595void smp_core99_give_timebase(void)
@@ -626,43 +635,184 @@ void smp_core99_give_timebase(void)
626 local_irq_restore(flags); 635 local_irq_restore(flags);
627} 636}
628 637
629void smp_core99_message_pass(int target, int msg) 638/* not __init, called in sleep/wakeup code */
639void smp_core99_take_timebase(void)
640{
641 unsigned long flags;
642
643 /* tell the primary we're here */
644 sec_tb_reset = 1;
645 mb();
646
647 /* wait for the primary to set pri_tb_hi/lo */
648 while (sec_tb_reset < 2)
649 mb();
650
651 /* set our stuff the same as the primary */
652 local_irq_save(flags);
653 set_dec(1);
654 set_tb(pri_tb_hi, pri_tb_lo);
655 last_jiffy_stamp(smp_processor_id()) = pri_tb_stamp;
656 mb();
657
658 /* tell the primary we're done */
659 sec_tb_reset = 0;
660 mb();
661 local_irq_restore(flags);
662}
663
664/* L2 and L3 cache settings to pass from CPU0 to CPU1 on G4 cpus */
665volatile static long int core99_l2_cache;
666volatile static long int core99_l3_cache;
667
668static void __devinit core99_init_caches(int cpu)
630{ 669{
631 cpumask_t mask = CPU_MASK_ALL; 670 if (!cpu_has_feature(CPU_FTR_L2CR))
632 /* make sure we're sending something that translates to an IPI */
633 if (msg > 0x3) {
634 printk("SMP %d: smp_message_pass: unknown msg %d\n",
635 smp_processor_id(), msg);
636 return; 671 return;
672
673 if (cpu == 0) {
674 core99_l2_cache = _get_L2CR();
675 printk("CPU0: L2CR is %lx\n", core99_l2_cache);
676 } else {
677 printk("CPU%d: L2CR was %lx\n", cpu, _get_L2CR());
678 _set_L2CR(0);
679 _set_L2CR(core99_l2_cache);
680 printk("CPU%d: L2CR set to %lx\n", cpu, core99_l2_cache);
637 } 681 }
638 switch (target) { 682
639 case MSG_ALL: 683 if (!cpu_has_feature(CPU_FTR_L3CR))
640 mpic_send_ipi(msg, cpus_addr(mask)[0]); 684 return;
641 break; 685
642 case MSG_ALL_BUT_SELF: 686 if (cpu == 0){
643 cpu_clear(smp_processor_id(), mask); 687 core99_l3_cache = _get_L3CR();
644 mpic_send_ipi(msg, cpus_addr(mask)[0]); 688 printk("CPU0: L3CR is %lx\n", core99_l3_cache);
645 break; 689 } else {
646 default: 690 printk("CPU%d: L3CR was %lx\n", cpu, _get_L3CR());
647 mpic_send_ipi(msg, 1 << target); 691 _set_L3CR(0);
648 break; 692 _set_L3CR(core99_l3_cache);
693 printk("CPU%d: L3CR set to %lx\n", cpu, core99_l3_cache);
649 } 694 }
650} 695}
651 696
697static void __init smp_core99_setup(int ncpus)
698{
699 struct device_node *cpu;
700 u32 *tbprop = NULL;
701 int i;
702
703 core99_tb_gpio = KL_GPIO_TB_ENABLE; /* default value */
704 cpu = of_find_node_by_type(NULL, "cpu");
705 if (cpu != NULL) {
706 tbprop = (u32 *)get_property(cpu, "timebase-enable", NULL);
707 if (tbprop)
708 core99_tb_gpio = *tbprop;
709 of_node_put(cpu);
710 }
711
712 /* XXX should get this from reg properties */
713 for (i = 1; i < ncpus; ++i)
714 smp_hw_index[i] = i;
715 powersave_nap = 0;
716}
717#endif
718
719static int __init smp_core99_probe(void)
720{
721 struct device_node *cpus;
722 int ncpus = 0;
723
724 if (ppc_md.progress) ppc_md.progress("smp_core99_probe", 0x345);
725
726 /* Count CPUs in the device-tree */
727 for (cpus = NULL; (cpus = of_find_node_by_type(cpus, "cpu")) != NULL;)
728 ++ncpus;
729
730 printk(KERN_INFO "PowerMac SMP probe found %d cpus\n", ncpus);
731
732 /* Nothing more to do if less than 2 of them */
733 if (ncpus <= 1)
734 return 1;
735
736 smp_core99_setup(ncpus);
737 mpic_request_ipis();
738 core99_init_caches(0);
739
740 return ncpus;
741}
742
743static void __devinit smp_core99_kick_cpu(int nr)
744{
745 unsigned int save_vector;
746 unsigned long new_vector;
747 unsigned long flags;
748 volatile unsigned int *vector
749 = ((volatile unsigned int *)(KERNELBASE+0x100));
750
751 if (nr < 0 || nr > 3)
752 return;
753 if (ppc_md.progress) ppc_md.progress("smp_core99_kick_cpu", 0x346);
754
755 local_irq_save(flags);
756 local_irq_disable();
757
758 /* Save reset vector */
759 save_vector = *vector;
760
761 /* Setup fake reset vector that does
762 * b __secondary_start_pmac_0 + nr*8 - KERNELBASE
763 */
764 new_vector = (unsigned long) __secondary_start_pmac_0 + nr * 8;
765 *vector = 0x48000002 + new_vector - KERNELBASE;
766
767 /* flush data cache and inval instruction cache */
768 flush_icache_range((unsigned long) vector, (unsigned long) vector + 4);
769
770 /* Put some life in our friend */
771 pmac_call_feature(PMAC_FTR_RESET_CPU, NULL, nr, 0);
772
773 /* FIXME: We wait a bit for the CPU to take the exception, I should
774 * instead wait for the entry code to set something for me. Well,
775 * ideally, all that crap will be done in prom.c and the CPU left
776 * in a RAM-based wait loop like CHRP.
777 */
778 mdelay(1);
779
780 /* Restore our exception vector */
781 *vector = save_vector;
782 flush_icache_range((unsigned long) vector, (unsigned long) vector + 4);
783
784 local_irq_restore(flags);
785 if (ppc_md.progress) ppc_md.progress("smp_core99_kick_cpu done", 0x347);
786}
787
788static void __devinit smp_core99_setup_cpu(int cpu_nr)
789{
790 /* Setup L2/L3 */
791 if (cpu_nr != 0)
792 core99_init_caches(cpu_nr);
793
794 /* Setup openpic */
795 mpic_setup_this_cpu();
796
797 if (cpu_nr == 0) {
798#ifdef CONFIG_POWER4
799 extern void g5_phy_disable_cpu1(void);
800
801 /* If we didn't start the second CPU, we must take
802 * it off the bus
803 */
804 if (machine_is_compatible("MacRISC4") &&
805 num_online_cpus() < 2)
806 g5_phy_disable_cpu1();
807#endif /* CONFIG_POWER4 */
808 if (ppc_md.progress) ppc_md.progress("core99_setup_cpu 0 done", 0x349);
809 }
810}
652 811
653/* PowerSurge-style Macs */
654struct smp_ops_t psurge_smp_ops = {
655 .message_pass = smp_psurge_message_pass,
656 .probe = smp_psurge_probe,
657 .kick_cpu = smp_psurge_kick_cpu,
658 .setup_cpu = smp_psurge_setup_cpu,
659 .give_timebase = smp_psurge_give_timebase,
660 .take_timebase = smp_psurge_take_timebase,
661};
662 812
663/* Core99 Macs (dual G4s) */ 813/* Core99 Macs (dual G4s and G5s) */
664struct smp_ops_t core99_smp_ops = { 814struct smp_ops_t core99_smp_ops = {
665 .message_pass = smp_core99_message_pass, 815 .message_pass = smp_mpic_message_pass,
666 .probe = smp_core99_probe, 816 .probe = smp_core99_probe,
667 .kick_cpu = smp_core99_kick_cpu, 817 .kick_cpu = smp_core99_kick_cpu,
668 .setup_cpu = smp_core99_setup_cpu, 818 .setup_cpu = smp_core99_setup_cpu,
@@ -670,7 +820,7 @@ struct smp_ops_t core99_smp_ops = {
670 .take_timebase = smp_core99_take_timebase, 820 .take_timebase = smp_core99_take_timebase,
671}; 821};
672 822
673#ifdef CONFIG_HOTPLUG_CPU 823#if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PPC32)
674 824
675int __cpu_disable(void) 825int __cpu_disable(void)
676{ 826{
@@ -685,7 +835,7 @@ int __cpu_disable(void)
685 return 0; 835 return 0;
686} 836}
687 837
688extern void low_cpu_die(void) __attribute__((noreturn)); /* in pmac_sleep.S */ 838extern void low_cpu_die(void) __attribute__((noreturn)); /* in sleep.S */
689static int cpu_dead[NR_CPUS]; 839static int cpu_dead[NR_CPUS];
690 840
691void cpu_die(void) 841void cpu_die(void)
diff --git a/arch/powerpc/platforms/powermac/time.c b/arch/powerpc/platforms/powermac/time.c
index a6d2d231d5a0..82982bf6453c 100644
--- a/arch/powerpc/platforms/powermac/time.c
+++ b/arch/powerpc/platforms/powermac/time.c
@@ -33,6 +33,7 @@
33#include <asm/machdep.h> 33#include <asm/machdep.h>
34#include <asm/time.h> 34#include <asm/time.h>
35#include <asm/nvram.h> 35#include <asm/nvram.h>
36#include <asm/smu.h>
36 37
37#undef DEBUG 38#undef DEBUG
38 39
@@ -68,8 +69,8 @@
68 69
69long __init pmac_time_init(void) 70long __init pmac_time_init(void)
70{ 71{
71#ifdef CONFIG_NVRAM
72 s32 delta = 0; 72 s32 delta = 0;
73#ifdef CONFIG_NVRAM
73 int dst; 74 int dst;
74 75
75 delta = ((s32)pmac_xpram_read(PMAC_XPRAM_MACHINE_LOC + 0x9)) << 16; 76 delta = ((s32)pmac_xpram_read(PMAC_XPRAM_MACHINE_LOC + 0x9)) << 16;
@@ -80,110 +81,181 @@ long __init pmac_time_init(void)
80 dst = ((pmac_xpram_read(PMAC_XPRAM_MACHINE_LOC + 0x8) & 0x80) != 0); 81 dst = ((pmac_xpram_read(PMAC_XPRAM_MACHINE_LOC + 0x8) & 0x80) != 0);
81 printk("GMT Delta read from XPRAM: %d minutes, DST: %s\n", delta/60, 82 printk("GMT Delta read from XPRAM: %d minutes, DST: %s\n", delta/60,
82 dst ? "on" : "off"); 83 dst ? "on" : "off");
83 return delta;
84#else
85 return 0;
86#endif 84#endif
85 return delta;
87} 86}
88 87
89unsigned long pmac_get_boot_time(void) 88static void to_rtc_time(unsigned long now, struct rtc_time *tm)
89{
90 to_tm(now, tm);
91 tm->tm_year -= 1900;
92 tm->tm_mon -= 1;
93}
94
95static unsigned long from_rtc_time(struct rtc_time *tm)
96{
97 return mktime(tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday,
98 tm->tm_hour, tm->tm_min, tm->tm_sec);
99}
100
101#ifdef CONFIG_ADB_CUDA
102static unsigned long cuda_get_time(void)
90{ 103{
91#if defined(CONFIG_ADB_CUDA) || defined(CONFIG_ADB_PMU)
92 struct adb_request req; 104 struct adb_request req;
93 unsigned long now; 105 unsigned long now;
94#endif
95 106
96 /* Get the time from the RTC */ 107 if (cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_GET_TIME) < 0)
97 switch (sys_ctrler) { 108 return 0;
98#ifdef CONFIG_ADB_CUDA 109 while (!req.complete)
99 case SYS_CTRLER_CUDA: 110 cuda_poll();
100 if (cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_GET_TIME) < 0) 111 if (req.reply_len != 7)
101 return 0; 112 printk(KERN_ERR "cuda_get_time: got %d byte reply\n",
102 while (!req.complete) 113 req.reply_len);
103 cuda_poll(); 114 now = (req.reply[3] << 24) + (req.reply[4] << 16)
104 if (req.reply_len != 7) 115 + (req.reply[5] << 8) + req.reply[6];
105 printk(KERN_ERR "pmac_get_rtc_time: got %d byte reply\n", 116 if (now < RTC_OFFSET)
106 req.reply_len); 117 return 0;
107 now = (req.reply[3] << 24) + (req.reply[4] << 16) 118 return now - RTC_OFFSET;
108 + (req.reply[5] << 8) + req.reply[6]; 119}
109 return now - RTC_OFFSET; 120
110#endif /* CONFIG_ADB_CUDA */ 121#define cuda_get_rtc_time(tm) to_rtc_time(cuda_get_time(), (tm))
111#ifdef CONFIG_ADB_PMU 122
112 case SYS_CTRLER_PMU: 123static int cuda_set_rtc_time(struct rtc_time *tm)
113 if (pmu_request(&req, NULL, 1, PMU_READ_RTC) < 0) 124{
114 return 0; 125 unsigned int nowtime;
115 while (!req.complete) 126 struct adb_request req;
116 pmu_poll(); 127
117 if (req.reply_len != 4) 128 nowtime = from_rtc_time(tm) + RTC_OFFSET;
118 printk(KERN_ERR "pmac_get_rtc_time: got %d byte reply\n", 129 if (cuda_request(&req, NULL, 6, CUDA_PACKET, CUDA_SET_TIME,
119 req.reply_len); 130 nowtime >> 24, nowtime >> 16, nowtime >> 8,
120 now = (req.reply[0] << 24) + (req.reply[1] << 16) 131 nowtime) < 0)
121 + (req.reply[2] << 8) + req.reply[3]; 132 return -ENXIO;
122 return now - RTC_OFFSET; 133 while (!req.complete)
123#endif /* CONFIG_ADB_PMU */ 134 cuda_poll();
124 default: ; 135 if ((req.reply_len != 3) && (req.reply_len != 7))
125 } 136 printk(KERN_ERR "cuda_set_rtc_time: got %d byte reply\n",
137 req.reply_len);
126 return 0; 138 return 0;
127} 139}
128 140
129void pmac_get_rtc_time(struct rtc_time *tm) 141#else
142#define cuda_get_time() 0
143#define cuda_get_rtc_time(tm)
144#define cuda_set_rtc_time(tm) 0
145#endif
146
147#ifdef CONFIG_ADB_PMU
148static unsigned long pmu_get_time(void)
130{ 149{
150 struct adb_request req;
131 unsigned long now; 151 unsigned long now;
132 152
133 now = pmac_get_boot_time(); 153 if (pmu_request(&req, NULL, 1, PMU_READ_RTC) < 0)
134 to_tm(now, tm); 154 return 0;
135 tm->tm_year -= 1900; 155 pmu_wait_complete(&req);
136 tm->tm_mon -= 1; /* month is 0-based */ 156 if (req.reply_len != 4)
157 printk(KERN_ERR "pmu_get_time: got %d byte reply from PMU\n",
158 req.reply_len);
159 now = (req.reply[0] << 24) + (req.reply[1] << 16)
160 + (req.reply[2] << 8) + req.reply[3];
161 if (now < RTC_OFFSET)
162 return 0;
163 return now - RTC_OFFSET;
137} 164}
138 165
139int pmac_set_rtc_time(struct rtc_time *tm) 166#define pmu_get_rtc_time(tm) to_rtc_time(pmu_get_time(), (tm))
167
168static int pmu_set_rtc_time(struct rtc_time *tm)
140{ 169{
141 unsigned long nowtime; 170 unsigned int nowtime;
142#if defined(CONFIG_ADB_CUDA) || defined(CONFIG_ADB_PMU)
143 struct adb_request req; 171 struct adb_request req;
172
173 nowtime = from_rtc_time(tm) + RTC_OFFSET;
174 if (pmu_request(&req, NULL, 5, PMU_SET_RTC, nowtime >> 24,
175 nowtime >> 16, nowtime >> 8, nowtime) < 0)
176 return -ENXIO;
177 pmu_wait_complete(&req);
178 if (req.reply_len != 0)
179 printk(KERN_ERR "pmu_set_rtc_time: %d byte reply from PMU\n",
180 req.reply_len);
181 return 0;
182}
183
184#else
185#define pmu_get_time() 0
186#define pmu_get_rtc_time(tm)
187#define pmu_set_rtc_time(tm) 0
144#endif 188#endif
145 189
146 nowtime = mktime(tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday, 190#ifdef CONFIG_PMAC_SMU
147 tm->tm_hour, tm->tm_min, tm->tm_sec); 191static unsigned long smu_get_time(void)
148 nowtime += RTC_OFFSET; 192{
193 struct rtc_time tm;
194
195 if (smu_get_rtc_time(&tm, 1))
196 return 0;
197 return from_rtc_time(&tm);
198}
199
200#else
201#define smu_get_time() 0
202#define smu_get_rtc_time(tm, spin)
203#define smu_set_rtc_time(tm, spin) 0
204#endif
149 205
206unsigned long pmac_get_boot_time(void)
207{
208 /* Get the time from the RTC, used only at boot time */
150 switch (sys_ctrler) { 209 switch (sys_ctrler) {
151#ifdef CONFIG_ADB_CUDA
152 case SYS_CTRLER_CUDA: 210 case SYS_CTRLER_CUDA:
153 if (cuda_request(&req, NULL, 6, CUDA_PACKET, CUDA_SET_TIME, 211 return cuda_get_time();
154 nowtime >> 24, nowtime >> 16, nowtime >> 8,
155 nowtime) < 0)
156 return 0;
157 while (!req.complete)
158 cuda_poll();
159 if ((req.reply_len != 3) && (req.reply_len != 7))
160 printk(KERN_ERR "pmac_set_rtc_time: got %d byte reply\n",
161 req.reply_len);
162 return 1;
163#endif /* CONFIG_ADB_CUDA */
164#ifdef CONFIG_ADB_PMU
165 case SYS_CTRLER_PMU: 212 case SYS_CTRLER_PMU:
166 if (pmu_request(&req, NULL, 5, PMU_SET_RTC, 213 return pmu_get_time();
167 nowtime >> 24, nowtime >> 16, nowtime >> 8, nowtime) < 0) 214 case SYS_CTRLER_SMU:
168 return 0; 215 return smu_get_time();
169 while (!req.complete)
170 pmu_poll();
171 if (req.reply_len != 0)
172 printk(KERN_ERR "pmac_set_rtc_time: got %d byte reply\n",
173 req.reply_len);
174 return 1;
175#endif /* CONFIG_ADB_PMU */
176 default: 216 default:
177 return 0; 217 return 0;
178 } 218 }
179} 219}
180 220
221void pmac_get_rtc_time(struct rtc_time *tm)
222{
223 /* Get the time from the RTC, used only at boot time */
224 switch (sys_ctrler) {
225 case SYS_CTRLER_CUDA:
226 cuda_get_rtc_time(tm);
227 break;
228 case SYS_CTRLER_PMU:
229 pmu_get_rtc_time(tm);
230 break;
231 case SYS_CTRLER_SMU:
232 smu_get_rtc_time(tm, 1);
233 break;
234 default:
235 ;
236 }
237}
238
239int pmac_set_rtc_time(struct rtc_time *tm)
240{
241 switch (sys_ctrler) {
242 case SYS_CTRLER_CUDA:
243 return cuda_set_rtc_time(tm);
244 case SYS_CTRLER_PMU:
245 return pmu_set_rtc_time(tm);
246 case SYS_CTRLER_SMU:
247 return smu_set_rtc_time(tm, 1);
248 default:
249 return -ENODEV;
250 }
251}
252
253#ifdef CONFIG_PPC32
181/* 254/*
182 * Calibrate the decrementer register using VIA timer 1. 255 * Calibrate the decrementer register using VIA timer 1.
183 * This is used both on powermacs and CHRP machines. 256 * This is used both on powermacs and CHRP machines.
184 */ 257 */
185int __init 258int __init via_calibrate_decr(void)
186via_calibrate_decr(void)
187{ 259{
188 struct device_node *vias; 260 struct device_node *vias;
189 volatile unsigned char __iomem *via; 261 volatile unsigned char __iomem *via;
@@ -217,15 +289,12 @@ via_calibrate_decr(void)
217 dend = get_dec(); 289 dend = get_dec();
218 290
219 ppc_tb_freq = (dstart - dend) * 100 / 6; 291 ppc_tb_freq = (dstart - dend) * 100 / 6;
220 tb_ticks_per_jiffy = (dstart - dend) / ((6 * HZ)/100);
221
222 printk(KERN_INFO "via_calibrate_decr: ticks per jiffy = %lu (%u ticks)\n",
223 tb_ticks_per_jiffy, dstart - dend);
224 292
225 iounmap(via); 293 iounmap(via);
226 294
227 return 1; 295 return 1;
228} 296}
297#endif
229 298
230#ifdef CONFIG_PM 299#ifdef CONFIG_PM
231/* 300/*
@@ -262,19 +331,17 @@ static struct pmu_sleep_notifier time_sleep_notifier = {
262 331
263/* 332/*
264 * Query the OF and get the decr frequency. 333 * Query the OF and get the decr frequency.
265 * This was taken from the pmac time_init() when merging the prep/pmac
266 * time functions.
267 */ 334 */
268void __init 335void __init pmac_calibrate_decr(void)
269pmac_calibrate_decr(void)
270{ 336{
271 struct device_node *cpu;
272 unsigned int freq, *fp;
273
274#ifdef CONFIG_PM 337#ifdef CONFIG_PM
338 /* XXX why here? */
275 pmu_register_sleep_notifier(&time_sleep_notifier); 339 pmu_register_sleep_notifier(&time_sleep_notifier);
276#endif /* CONFIG_PM */ 340#endif /* CONFIG_PM */
277 341
342 generic_calibrate_decr();
343
344#ifdef CONFIG_PPC32
278 /* We assume MacRISC2 machines have correct device-tree 345 /* We assume MacRISC2 machines have correct device-tree
279 * calibration. That's better since the VIA itself seems 346 * calibration. That's better since the VIA itself seems
280 * to be slightly off. --BenH 347 * to be slightly off. --BenH
@@ -293,18 +360,5 @@ pmac_calibrate_decr(void)
293 if (machine_is_compatible("PowerMac3,5")) 360 if (machine_is_compatible("PowerMac3,5"))
294 if (via_calibrate_decr()) 361 if (via_calibrate_decr())
295 return; 362 return;
296 /* 363#endif
297 * The cpu node should have a timebase-frequency property
298 * to tell us the rate at which the decrementer counts.
299 */
300 cpu = find_type_devices("cpu");
301 if (cpu == 0)
302 panic("can't find cpu node in time_init");
303 fp = (unsigned int *) get_property(cpu, "timebase-frequency", NULL);
304 if (fp == 0)
305 panic("can't get cpu timebase frequency");
306 freq = *fp;
307 printk("time_init: decrementer frequency = %u.%.6u MHz\n",
308 freq/1000000, freq%1000000);
309 ppc_tb_freq = freq;
310} 364}
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-25 11:39:54 -0500