static int pci_controller_scan(int (*handler)(char *, int, int))
{
char namebuf[64];
int node;
int count = 0;
node = prom_getchild(prom_root_node);
while ((node = prom_searchsiblings(node, "pci")) != 0) {
int len;
if ((len = prom_getproperty(node, "model", namebuf, sizeof(namebuf))) > 0 ||
(len = prom_getproperty(node, "compatible", namebuf, sizeof(namebuf))) > 0) {
int item_len = 0;
/* Our value may be a multi-valued string in the
* case of some compatible properties. For sanity,
* only try the first one. */
while (namebuf[item_len] && len) {
len--;
item_len++;
}
if (handler(namebuf, item_len, node))
count++;
}
node = prom_getsibling(node);
if (!node)
break;
}
return count;
}
static struct device_node * __init prom_build_tree(struct device_node *parent,
phandle node,
struct device_node ***nextp)
{
struct device_node *ret = NULL, *prev_sibling = NULL;
struct device_node *dp;
while (1) {
dp = prom_create_node(node, parent);
if (!dp)
break;
if (prev_sibling)
prev_sibling->sibling = dp;
if (!ret)
ret = dp;
prev_sibling = dp;
*(*nextp) = dp;
*nextp = &dp->allnext;
dp->path_component_name = build_path_component(dp);
dp->full_name = build_full_name(dp);
dp->child = prom_build_tree(dp, prom_getchild(node), nextp);
if (prom_build_more)
prom_build_more(dp, nextp);
node = prom_getsibling(node);
}
return ret;
}
__initfunc(void prom_init(void *cif_handler, void *cif_stack))
{
char buffer[80], *p;
int ints[3];
int node;
int i = 0;
prom_vers = PROM_P1275;
prom_cif_init(cif_handler, cif_stack);
prom_root_node = prom_getsibling(0);
if((prom_root_node == 0) || (prom_root_node == -1))
prom_halt();
prom_chosen_node = prom_finddevice("/chosen");
if (!prom_chosen_node || prom_chosen_node == -1)
prom_halt();
prom_stdin = prom_getint (prom_chosen_node, "stdin");
prom_stdout = prom_getint (prom_chosen_node, "stdout");
node = prom_finddevice("/openprom");
if (!node || node == -1)
prom_halt();
prom_getstring (node, "version", buffer, sizeof (buffer));
prom_printf ("\n");
if (strncmp (buffer, "OBP ", 4))
goto strange_version;
/* Version field is expected to be 'OBP xx.yy.zz date...' */
p = buffer + 4;
while (p && isdigit(*p) && i < 3) {
ints[i++] = simple_strtoul(p, NULL, 0);
if ((p = strchr(p, '.')) != NULL)
p++;
}
if (i != 3)
goto strange_version;
prom_rev = ints[1];
prom_prev = (ints[0] << 16) | (ints[1] << 8) | ints[2];
printk ("PROMLIB: Sun IEEE Boot Prom %s\n", buffer + 4);
prom_meminit();
prom_ranges_init();
/* Initialization successful. */
return;
strange_version:
prom_printf ("Strange OBP version `%s'.\n", buffer);
prom_halt ();
}
static void __init isa_fill_devices(struct sparc_isa_bridge *isa_br)
{
int node = prom_getchild(isa_br->prom_node);
while (node != 0) {
struct linux_prom_registers regs[PROMREG_MAX];
struct sparc_isa_device *isa_dev;
int prop_len;
isa_dev = kmalloc(sizeof(*isa_dev), GFP_KERNEL);
if (!isa_dev) {
fatal_err("cannot allocate isa_dev");
prom_halt();
}
memset(isa_dev, 0, sizeof(*isa_dev));
/* Link it in. */
isa_dev->next = NULL;
if (isa_br->devices == NULL) {
isa_br->devices = isa_dev;
} else {
struct sparc_isa_device *tmp = isa_br->devices;
while (tmp->next)
tmp = tmp->next;
tmp->next = isa_dev;
}
isa_dev->bus = isa_br;
isa_dev->prom_node = node;
prop_len = prom_getproperty(node, "name",
(char *) isa_dev->prom_name,
sizeof(isa_dev->prom_name));
if (prop_len <= 0) {
fatal_err("cannot get isa_dev OBP node name");
prom_halt();
}
prop_len = prom_getproperty(node, "compatible",
(char *) isa_dev->compatible,
sizeof(isa_dev->compatible));
/* Not having this is OK. */
if (prop_len <= 0)
isa_dev->compatible[0] = '\0';
isa_dev_get_resource(isa_dev, regs, sizeof(regs));
isa_dev_get_irq(isa_dev, regs);
report_dev(isa_dev, 0);
isa_fill_children(isa_dev);
printk("]");
node = prom_getsibling(node);
}
}
__initfunc(static void
sbus_do_child_siblings(int start_node, struct linux_sbus_device *child,
struct linux_sbus *sbus))
{
struct linux_sbus_device *this_dev = child;
int this_node = start_node;
/* Child already filled in, just need to traverse siblings. */
child->child = 0;
while((this_node = prom_getsibling(this_node)) != 0) {
this_dev->next = kmalloc(sizeof(struct linux_sbus_device), GFP_ATOMIC);
this_dev = this_dev->next;
this_dev->next = 0;
this_dev->my_bus = sbus;
fill_sbus_device(this_node, this_dev);
if(prom_getchild(this_node)) {
this_dev->child = kmalloc(sizeof(struct linux_sbus_device),
GFP_ATOMIC);
this_dev->child->my_bus = sbus;
fill_sbus_device(prom_getchild(this_node), this_dev->child);
sbus_do_child_siblings(prom_getchild(this_node),
this_dev->child, sbus);
} else {
this_dev->child = 0;
}
}
}
/* Find each controller in the system, attach and initialize
* software state structure for each and link into the
* pci_controller_root. Setup the controller enough such
* that bus scanning can be done.
*/
static void pci_controller_probe(void)
{
char namebuf[16];
int node;
printk("PCI: Probing for controllers.\n");
node = prom_getchild(prom_root_node);
while ((node = prom_searchsiblings(node, "pci")) != 0) {
int len;
len = prom_getproperty(node, "model",
namebuf, sizeof(namebuf));
if (len > 0)
pci_controller_init(namebuf, len, node);
else {
len = prom_getproperty(node, "compatible",
namebuf, sizeof(namebuf));
if (len > 0)
pci_controller_init(namebuf, len, node);
}
node = prom_getsibling(node);
if (!node)
break;
}
}
static void __init sbus_do_child_siblings(int start_node,
struct sbus_dev *child,
struct sbus_dev *parent,
struct sbus_bus *sbus)
{
struct sbus_dev *this_dev = child;
int this_node = start_node;
/* Child already filled in, just need to traverse siblings. */
child->child = NULL;
child->parent = parent;
while((this_node = prom_getsibling(this_node)) != 0) {
this_dev->next = kmalloc(sizeof(struct sbus_dev), GFP_ATOMIC);
this_dev = this_dev->next;
this_dev->next = 0;
this_dev->parent = parent;
this_dev->bus = sbus;
fill_sbus_device(this_node, this_dev);
if(prom_getchild(this_node)) {
this_dev->child = kmalloc(sizeof(struct sbus_dev),
GFP_ATOMIC);
this_dev->child->bus = sbus;
this_dev->child->next = 0;
fill_sbus_device(prom_getchild(this_node), this_dev->child);
sbus_do_child_siblings(prom_getchild(this_node),
this_dev->child, this_dev, sbus);
} else {
this_dev->child = NULL;
}
}
}
/* Return nonzero if a specific node is in the PROM device tree. */
static int intree(int root, int node)
{
for (; root != 0; root = prom_getsibling(root))
if (root == node || intree(prom_getchild(root),node))
return 1;
return 0;
}
int prom_finddevice(char *name)
{
char nbuf[128];
char *s = name, *d;
int node = prom_root_node, node2;
unsigned int which_io, phys_addr;
struct linux_prom_registers reg[PROMREG_MAX];
while (*s++) {
if (!*s) return node; /* path '.../' is legal */
node = prom_getchild(node);
for (d = nbuf; *s != 0 && *s != '@' && *s != '/';)
*d++ = *s++;
*d = 0;
node = prom_searchsiblings(node, nbuf);
if (!node)
return 0;
if (*s == '@') {
if (isxdigit(s[1]) && s[2] == ',') {
which_io = simple_strtoul(s+1, NULL, 16);
phys_addr = simple_strtoul(s+3, &d, 16);
if (d != s + 3 && (!*d || *d == '/')
&& d <= s + 3 + 8) {
node2 = node;
while (node2 && node2 != -1) {
if (prom_getproperty (node2, "reg", (char *)reg, sizeof (reg)) > 0) {
if (which_io == reg[0].which_io && phys_addr == reg[0].phys_addr) {
node = node2;
break;
}
}
node2 = prom_getsibling(node2);
if (!node2 || node2 == -1)
break;
node2 = prom_searchsiblings(prom_getsibling(node2), nbuf);
}
}
}
while (*s != 0 && *s != '/') s++;
}
}
return node;
}
void __init prom_init(struct linux_romvec *rp)
{
#ifdef CONFIG_SUN4
extern struct linux_romvec *sun4_prom_init(void);
rp = sun4_prom_init();
#endif
romvec = rp;
switch(romvec->pv_romvers) {
case 0:
prom_vers = PROM_V0;
break;
case 2:
prom_vers = PROM_V2;
break;
case 3:
prom_vers = PROM_V3;
break;
case 40:
prom_vers = PROM_SUN4;
break;
default:
prom_printf("PROMLIB: Bad PROM version %d\n",
romvec->pv_romvers);
prom_halt();
break;
};
prom_rev = romvec->pv_plugin_revision;
prom_prev = romvec->pv_printrev;
prom_nodeops = romvec->pv_nodeops;
prom_root_node = prom_getsibling(0);
if((prom_root_node == 0) || (prom_root_node == -1))
prom_halt();
if((((unsigned long) prom_nodeops) == 0) ||
(((unsigned long) prom_nodeops) == -1))
prom_halt();
if(prom_vers == PROM_V2 || prom_vers == PROM_V3) {
prom_stdout = *romvec->pv_v2bootargs.fd_stdout;
prom_stdin = *romvec->pv_v2bootargs.fd_stdin;
}
prom_meminit();
prom_ranges_init();
#ifndef CONFIG_SUN4
/* SUN4 prints this in sun4_prom_init */
printk("PROMLIB: Sun Boot Prom Version %d Revision %d\n",
romvec->pv_romvers, prom_rev);
#endif
/* Initialization successful. */
return;
}
void __init prom_init(struct linux_romvec *rp)
{
#ifdef CONFIG_AP1000
extern struct linux_romvec *ap_prom_init(void);
rp = ap_prom_init();
#endif
romvec = rp;
#ifndef CONFIG_SUN3
switch(romvec->pv_romvers) {
case 0:
prom_vers = PROM_V0;
break;
case 2:
prom_vers = PROM_V2;
break;
case 3:
prom_vers = PROM_V3;
break;
case 4:
prom_vers = PROM_P1275;
prom_printf("PROMLIB: Sun IEEE Prom not supported yet\n");
prom_halt();
break;
case 42: /* why not :-) */
prom_vers = PROM_AP1000;
break;
default:
prom_printf("PROMLIB: Bad PROM version %d\n",
romvec->pv_romvers);
prom_halt();
break;
};
prom_rev = romvec->pv_plugin_revision;
prom_prev = romvec->pv_printrev;
prom_nodeops = romvec->pv_nodeops;
prom_root_node = prom_getsibling(0);
if((prom_root_node == 0) || (prom_root_node == -1))
prom_halt();
if((((unsigned long) prom_nodeops) == 0) ||
(((unsigned long) prom_nodeops) == -1))
prom_halt();
prom_meminit();
prom_ranges_init();
#endif
// printk("PROMLIB: Sun Boot Prom Version %d Revision %d\n",
// romvec->pv_romvers, prom_rev);
/* Initialization successful. */
return;
}
__initfunc(unsigned long
device_scan(unsigned long mem_start))
{
char node_str[128];
int nd, prom_node_cpu, thismid;
int cpu_nds[NR_CPUS]; /* One node for each cpu */
int cpu_ctr = 0;
prom_getstring(prom_root_node, "device_type", node_str, sizeof(node_str));
if(strcmp(node_str, "cpu") == 0) {
cpu_nds[0] = prom_root_node;
linux_cpus[0].prom_node = prom_root_node;
linux_cpus[0].mid = 0;
cpu_ctr++;
} else {
int scan;
scan = prom_getchild(prom_root_node);
prom_printf("root child is %08x\n", (unsigned) scan);
nd = 0;
while((scan = prom_getsibling(scan)) != 0) {
prom_getstring(scan, "device_type", node_str, sizeof(node_str));
if(strcmp(node_str, "cpu") == 0) {
cpu_nds[cpu_ctr] = scan;
linux_cpus[cpu_ctr].prom_node = scan;
prom_getproperty(scan, "upa-portid",
(char *) &thismid, sizeof(thismid));
linux_cpus[cpu_ctr].mid = thismid;
#ifdef __SMP__
prom_printf("Found CPU %d (node=%08x,mid=%d)\n",
cpu_ctr, (unsigned) scan,
thismid);
printk("Found CPU %d (node=%08x,mid=%d)\n",
cpu_ctr, (unsigned) scan, thismid);
#endif
cpu_ctr++;
}
};
if(cpu_ctr == 0) {
prom_printf("No CPU nodes found, cannot continue.\n");
prom_halt();
}
#ifdef __SMP__
printk("Found %d CPU prom device tree node(s).\n", cpu_ctr);
#endif
};
prom_node_cpu = cpu_nds[0];
linux_num_cpus = cpu_ctr;
prom_cpu_nodes[0] = prom_node_cpu;
cpu_probe();
return central_probe(mem_start);
}
static void __init isa_fill_children(struct sparc_isa_device *parent_isa_dev)
{
int node = prom_getchild(parent_isa_dev->prom_node);
if (node == 0)
return;
printk(" ->");
while (node != 0) {
struct linux_prom_registers regs[PROMREG_MAX];
struct sparc_isa_device *isa_dev;
int prop_len;
isa_dev = kmalloc(sizeof(*isa_dev), GFP_KERNEL);
if (!isa_dev) {
fatal_err("cannot allocate child isa_dev");
prom_halt();
}
memset(isa_dev, 0, sizeof(*isa_dev));
/* Link it in to parent. */
isa_dev->next = parent_isa_dev->child;
parent_isa_dev->child = isa_dev;
isa_dev->bus = parent_isa_dev->bus;
isa_dev->prom_node = node;
prop_len = prom_getproperty(node, "name",
(char *) isa_dev->prom_name,
sizeof(isa_dev->prom_name));
if (prop_len <= 0) {
fatal_err("cannot get child isa_dev OBP node name");
prom_halt();
}
prop_len = prom_getproperty(node, "compatible",
(char *) isa_dev->compatible,
sizeof(isa_dev->compatible));
/* Not having this is OK. */
if (prop_len <= 0)
isa_dev->compatible[0] = '\0';
isa_dev_get_resource(isa_dev, regs, sizeof(regs));
isa_dev_get_irq(isa_dev, regs);
report_dev(isa_dev, 1);
node = prom_getsibling(node);
}
}
/* Search siblings at 'node_start' for a node with name
* 'nodename'. Return node if successful, zero if not.
*/
int prom_searchsiblings(int node_start, char *nodename)
{
int thisnode, error;
for(thisnode = node_start; thisnode;
thisnode=prom_getsibling(thisnode)) {
error = prom_getproperty(thisnode, "name", promlib_buf,
sizeof(promlib_buf));
/* Should this ever happen? */
if(error == -1) continue;
if(strcmp(nodename, promlib_buf)==0) return thisnode;
}
return 0;
}
/* Search siblings at 'node_start' for a node with name
* 'nodename'. Return node if successful, zero if not.
*/
phandle prom_searchsiblings(phandle node_start, const char *nodename)
{
phandle thisnode;
int error;
char promlib_buf[128];
for(thisnode = node_start; thisnode;
thisnode=prom_getsibling(thisnode)) {
error = prom_getproperty(thisnode, "name", promlib_buf,
sizeof(promlib_buf));
/* Should this ever happen? */
if(error == -1) continue;
if(strcmp(nodename, promlib_buf)==0) return thisnode;
}
return 0;
}
__initfunc(static int pdev_to_pnode(struct linux_pbm_info *pbm,
struct pci_dev *pdev))
{
struct linux_prom_pci_registers regs[PROMREG_MAX];
int err;
int node = prom_getchild(pbm->prom_node);
while(node) {
err = prom_getproperty(node, "reg",
(char *)®s[0], sizeof(regs));
if(err != 0 && err != -1) {
unsigned long devfn = (regs[0].which_io >> 8) & 0xff;
if(devfn == pdev->devfn)
return node; /* Match */
}
node = prom_getsibling(node);
}
void __init prom_init(struct linux_romvec *rp)
{
romvec = rp;
switch(romvec->pv_romvers) {
case 0:
prom_vers = PROM_V0;
break;
case 2:
prom_vers = PROM_V2;
break;
case 3:
prom_vers = PROM_V3;
break;
default:
prom_printf("PROMLIB: Bad PROM version %d\n",
romvec->pv_romvers);
prom_halt();
break;
};
prom_rev = romvec->pv_plugin_revision;
prom_prev = romvec->pv_printrev;
prom_nodeops = romvec->pv_nodeops;
prom_root_node = prom_getsibling(0);
if((prom_root_node == 0) || (prom_root_node == -1))
prom_halt();
if((((unsigned long) prom_nodeops) == 0) ||
(((unsigned long) prom_nodeops) == -1))
prom_halt();
prom_meminit();
prom_ranges_init();
printk("PROMLIB: Sun Boot Prom Version %d Revision %d\n",
romvec->pv_romvers, prom_rev);
/* Initialization successful. */
}
void __init sbus_init(void)
{
int nd, this_sbus, sbus_devs, topnd, iommund;
unsigned int sbus_clock;
struct sbus_bus *sbus;
struct sbus_dev *this_dev;
int num_sbus = 0; /* How many did we find? */
#ifndef __sparc_v9__
register_proc_sparc_ioport();
#endif
#ifdef CONFIG_SUN4
return sun4_dvma_init();
#endif
topnd = prom_getchild(prom_root_node);
/* Finding the first sbus is a special case... */
iommund = 0;
if(sparc_cpu_model == sun4u) {
nd = prom_searchsiblings(topnd, "sbus");
if(nd == 0) {
#ifdef CONFIG_PCI
if (!pcibios_present()) {
prom_printf("Neither SBUS nor PCI found.\n");
prom_halt();
} else {
#ifdef __sparc_v9__
firetruck_init();
#endif
}
return;
#else
prom_printf("YEEE, UltraSparc sbus not found\n");
prom_halt();
#endif
}
} else if(sparc_cpu_model == sun4d) {
if((iommund = prom_searchsiblings(topnd, "io-unit")) == 0 ||
(nd = prom_getchild(iommund)) == 0 ||
(nd = prom_searchsiblings(nd, "sbi")) == 0) {
panic("sbi not found");
}
} else if((nd = prom_searchsiblings(topnd, "sbus")) == 0) {
if((iommund = prom_searchsiblings(topnd, "iommu")) == 0 ||
(nd = prom_getchild(iommund)) == 0 ||
(nd = prom_searchsiblings(nd, "sbus")) == 0) {
#ifdef CONFIG_PCI
if (!pcibios_present()) {
prom_printf("Neither SBUS nor PCI found.\n");
prom_halt();
}
return;
#else
/* No reason to run further - the data access trap will occur. */
panic("sbus not found");
#endif
}
}
/* Ok, we've found the first one, allocate first SBus struct
* and place in chain.
*/
sbus = sbus_root = kmalloc(sizeof(struct sbus_bus), GFP_ATOMIC);
sbus->next = NULL;
sbus->prom_node = nd;
this_sbus = nd;
if(iommund && sparc_cpu_model != sun4u && sparc_cpu_model != sun4d)
iommu_init(iommund, sbus);
/* Loop until we find no more SBUS's */
while(this_sbus) {
#ifdef __sparc_v9__
/* IOMMU hides inside SBUS/SYSIO prom node on Ultra. */
if(sparc_cpu_model == sun4u) {
extern void sbus_iommu_init(int prom_node, struct sbus_bus *sbus);
sbus_iommu_init(this_sbus, sbus);
}
#endif
#ifndef __sparc_v9__
if (sparc_cpu_model == sun4d)
iounit_init(this_sbus, iommund, sbus);
#endif
printk("sbus%d: ", num_sbus);
sbus_clock = prom_getint(this_sbus, "clock-frequency");
if(sbus_clock == -1)
sbus_clock = (25*1000*1000);
printk("Clock %d.%d MHz\n", (int) ((sbus_clock/1000)/1000),
(int) (((sbus_clock/1000)%1000 != 0) ?
(((sbus_clock/1000)%1000) + 1000) : 0));
prom_getstring(this_sbus, "name",
sbus->prom_name, sizeof(sbus->prom_name));
sbus->clock_freq = sbus_clock;
#ifndef __sparc_v9__
if (sparc_cpu_model == sun4d) {
sbus->devid = prom_getint(iommund, "device-id");
sbus->board = prom_getint(iommund, "board#");
}
#endif
sbus_bus_ranges_init(iommund, sbus);
sbus_devs = prom_getchild(this_sbus);
if (!sbus_devs) {
sbus->devices = NULL;
goto next_bus;
}
sbus->devices = kmalloc(sizeof(struct sbus_dev), GFP_ATOMIC);
this_dev = sbus->devices;
this_dev->next = NULL;
this_dev->bus = sbus;
this_dev->parent = NULL;
fill_sbus_device(sbus_devs, this_dev);
/* Should we traverse for children? */
if(prom_getchild(sbus_devs)) {
/* Allocate device node */
this_dev->child = kmalloc(sizeof(struct sbus_dev),
GFP_ATOMIC);
/* Fill it */
this_dev->child->bus = sbus;
this_dev->child->next = 0;
fill_sbus_device(prom_getchild(sbus_devs),
this_dev->child);
sbus_do_child_siblings(prom_getchild(sbus_devs),
this_dev->child,
this_dev,
sbus);
} else {
this_dev->child = NULL;
}
while((sbus_devs = prom_getsibling(sbus_devs)) != 0) {
/* Allocate device node */
this_dev->next = kmalloc(sizeof(struct sbus_dev),
GFP_ATOMIC);
this_dev = this_dev->next;
this_dev->next = NULL;
/* Fill it */
this_dev->bus = sbus;
this_dev->parent = NULL;
fill_sbus_device(sbus_devs, this_dev);
/* Is there a child node hanging off of us? */
if(prom_getchild(sbus_devs)) {
/* Get new device struct */
this_dev->child = kmalloc(sizeof(struct sbus_dev),
GFP_ATOMIC);
/* Fill it */
this_dev->child->bus = sbus;
this_dev->child->next = 0;
fill_sbus_device(prom_getchild(sbus_devs),
this_dev->child);
sbus_do_child_siblings(prom_getchild(sbus_devs),
this_dev->child,
this_dev,
sbus);
} else {
this_dev->child = NULL;
}
}
/* Walk all devices and apply parent ranges. */
sbus_fixup_all_regs(sbus->devices);
dvma_init(sbus);
next_bus:
num_sbus++;
if(sparc_cpu_model == sun4u) {
this_sbus = prom_getsibling(this_sbus);
if(!this_sbus)
break;
this_sbus = prom_searchsiblings(this_sbus, "sbus");
} else if(sparc_cpu_model == sun4d) {
iommund = prom_getsibling(iommund);
if(!iommund)
break;
iommund = prom_searchsiblings(iommund, "io-unit");
if(!iommund)
break;
this_sbus = prom_searchsiblings(prom_getchild(iommund), "sbi");
} else {
this_sbus = prom_getsibling(this_sbus);
if(!this_sbus)
break;
this_sbus = prom_searchsiblings(this_sbus, "sbus");
}
if(this_sbus) {
sbus->next = kmalloc(sizeof(struct sbus_bus), GFP_ATOMIC);
sbus = sbus->next;
sbus->next = NULL;
sbus->prom_node = this_sbus;
} else {
break;
}
} /* while(this_sbus) */
if (sparc_cpu_model == sun4d) {
extern void sun4d_init_sbi_irq(void);
sun4d_init_sbi_irq();
}
rs_init();
#ifdef __sparc_v9__
if (sparc_cpu_model == sun4u) {
firetruck_init();
}
#endif
#ifdef CONFIG_SUN_AUXIO
if (sparc_cpu_model == sun4u)
auxio_probe ();
#endif
#ifdef __sparc_v9__
if (sparc_cpu_model == sun4u) {
extern void clock_probe(void);
clock_probe();
}
#endif
}
void __init prom_init(void *cif_handler, void *cif_stack)
{
char buffer[80], *p;
int ints[3];
int node;
int i = 0;
int bufadjust;
prom_vers = PROM_P1275;
prom_cif_init(cif_handler, cif_stack);
prom_root_node = prom_getsibling(0);
if((prom_root_node == 0) || (prom_root_node == -1))
prom_halt();
prom_chosen_node = prom_finddevice("/chosen");
if (!prom_chosen_node || prom_chosen_node == -1)
prom_halt();
prom_stdin = prom_getint (prom_chosen_node, "stdin");
prom_stdout = prom_getint (prom_chosen_node, "stdout");
node = prom_finddevice("/openprom");
if (!node || node == -1)
prom_halt();
prom_getstring (node, "version", buffer, sizeof (buffer));
prom_printf ("\n");
if (strncmp (buffer, "OBP ", 4))
goto strange_version;
/*
* Version field is expected to be 'OBP xx.yy.zz date...'
* However, Sun can't stick to this format very well, so
* we need to check for 'OBP xx.yy.zz date...' and adjust
* accordingly. -spot
*/
if (strncmp (buffer, "OBP ", 5))
bufadjust = 4;
else
bufadjust = 5;
p = buffer + bufadjust;
while (p && isdigit(*p) && i < 3) {
ints[i++] = simple_strtoul(p, NULL, 0);
if ((p = strchr(p, '.')) != NULL)
p++;
}
if (i != 3)
goto strange_version;
prom_rev = ints[1];
prom_prev = (ints[0] << 16) | (ints[1] << 8) | ints[2];
printk ("PROMLIB: Sun IEEE Boot Prom %s\n", buffer + bufadjust);
prom_meminit();
/* Initialization successful. */
return;
strange_version:
prom_printf ("Strange OBP version `%s'.\n", buffer);
prom_halt ();
}
void __init fill_ebus_device(int node, struct linux_ebus_device *dev)
{
struct linux_prom_registers regs[PROMREG_MAX];
struct linux_ebus_child *child;
int irqs[PROMINTR_MAX];
int i, n, len;
dev->prom_node = node;
prom_getstring(node, "name", dev->prom_name, sizeof(dev->prom_name));
printk(" [%s", dev->prom_name);
len = prom_getproperty(node, "reg", (void *)regs, sizeof(regs));
if (len % sizeof(struct linux_prom_registers)) {
prom_printf("UGH: proplen for %s was %d, need multiple of %d\n",
dev->prom_name, len,
(int)sizeof(struct linux_prom_registers));
prom_halt();
}
dev->num_addrs = len / sizeof(struct linux_prom_registers);
for (i = 0; i < dev->num_addrs; i++) {
n = (regs[i].which_io - 0x10) >> 2;
dev->resource[i].start = dev->bus->self->resource[n].start;
dev->resource[i].start += (unsigned long)regs[i].phys_addr;
dev->resource[i].end =
(dev->resource[i].start + (unsigned long)regs[i].reg_size - 1UL);
dev->resource[i].flags = IORESOURCE_MEM;
dev->resource[i].name = dev->prom_name;
request_resource(&dev->bus->self->resource[n],
&dev->resource[i]);
}
len = prom_getproperty(node, "interrupts", (char *)&irqs, sizeof(irqs));
if ((len == -1) || (len == 0)) {
dev->num_irqs = 0;
} else {
dev->num_irqs = len / sizeof(irqs[0]);
for (i = 0; i < dev->num_irqs; i++) {
struct pci_pbm_info *pbm = dev->bus->parent;
struct pci_controller_info *p = pbm->parent;
if (ebus_intmap_match(dev->bus, ®s[0], &irqs[i]) != -1) {
dev->irqs[i] = p->irq_build(p,
dev->bus->self,
irqs[i]);
} else {
/* If we get a bogus interrupt property, just
* record the raw value instead of punting.
*/
dev->irqs[i] = irqs[i];
}
}
}
if ((node = prom_getchild(node))) {
printk(" ->");
dev->children = ebus_alloc(sizeof(struct linux_ebus_child));
child = dev->children;
child->next = 0;
child->parent = dev;
child->bus = dev->bus;
fill_ebus_child(node, ®s[0],
child, child_regs_nonstandard(dev));
while ((node = prom_getsibling(node))) {
child->next = ebus_alloc(sizeof(struct linux_ebus_child));
child = child->next;
child->next = 0;
child->parent = dev;
child->bus = dev->bus;
fill_ebus_child(node, ®s[0],
child, child_regs_nonstandard(dev));
}
}
printk("]");
}
__initfunc(void ebus_init(void))
{
struct linux_prom_pci_registers regs[PROMREG_MAX];
struct linux_pbm_info *pbm;
struct linux_ebus_device *dev;
struct linux_ebus *ebus;
struct pci_dev *pdev;
struct pcidev_cookie *cookie;
char lbuf[128];
unsigned long addr, *base;
unsigned short pci_command;
int nd, len, ebusnd;
int reg, rng, nreg;
int num_ebus = 0;
if (!pci_present())
return;
pdev = pci_find_device(PCI_VENDOR_ID_SUN, PCI_DEVICE_ID_SUN_EBUS, 0);
if (!pdev) {
printk("ebus: No EBus's found.\n");
#ifdef PROM_DEBUG
dprintf("ebus: No EBus's found.\n");
#endif
return;
}
cookie = pdev->sysdata;
ebusnd = cookie->prom_node;
ebus_chain = ebus = (struct linux_ebus *)
ebus_alloc(sizeof(struct linux_ebus));
ebus->next = 0;
while (ebusnd) {
printk("ebus%d:", num_ebus);
#ifdef PROM_DEBUG
dprintf("ebus%d:", num_ebus);
#endif
prom_getstring(ebusnd, "name", lbuf, sizeof(lbuf));
ebus->prom_node = ebusnd;
strcpy(ebus->prom_name, lbuf);
ebus->self = pdev;
ebus->parent = pbm = cookie->pbm;
/* Enable BUS Master. */
pci_read_config_word(pdev, PCI_COMMAND, &pci_command);
pci_command |= PCI_COMMAND_MASTER;
pci_write_config_word(pdev, PCI_COMMAND, pci_command);
len = prom_getproperty(ebusnd, "reg", (void *)regs,
sizeof(regs));
if (len == 0 || len == -1) {
prom_printf("%s: can't find reg property\n",
__FUNCTION__);
prom_halt();
}
nreg = len / sizeof(struct linux_prom_pci_registers);
base = &ebus->self->base_address[0];
for (reg = 0; reg < nreg; reg++) {
if (!(regs[reg].phys_hi & 0x03000000))
continue;
for (rng = 0; rng < pbm->num_pbm_ranges; rng++) {
struct linux_prom_pci_ranges *rp =
&pbm->pbm_ranges[rng];
if ((rp->child_phys_hi ^ regs[reg].phys_hi)
& 0x03000000)
continue;
addr = (u64)regs[reg].phys_lo;
addr += (u64)regs[reg].phys_mid << 32UL;
addr += (u64)rp->parent_phys_lo;
addr += (u64)rp->parent_phys_hi << 32UL;
*base++ = (unsigned long)__va(addr);
printk(" %lx[%x]", (unsigned long)__va(addr),
regs[reg].size_lo);
#ifdef PROM_DEBUG
dprintf(" %lx[%x]", (unsigned long)__va(addr),
regs[reg].size_lo);
#endif
break;
}
}
printk("\n");
#ifdef PROM_DEBUG
dprintf("\n");
#endif
prom_ebus_ranges_init(ebus);
prom_ebus_intmap_init(ebus);
nd = prom_getchild(ebusnd);
if (!nd)
goto next_ebus;
ebus->devices = (struct linux_ebus_device *)
ebus_alloc(sizeof(struct linux_ebus_device));
dev = ebus->devices;
dev->next = 0;
dev->children = 0;
dev->bus = ebus;
fill_ebus_device(nd, dev);
while ((nd = prom_getsibling(nd))) {
dev->next = (struct linux_ebus_device *)
ebus_alloc(sizeof(struct linux_ebus_device));
dev = dev->next;
dev->next = 0;
dev->children = 0;
dev->bus = ebus;
fill_ebus_device(nd, dev);
}
next_ebus:
pdev = pci_find_device(PCI_VENDOR_ID_SUN,
PCI_DEVICE_ID_SUN_EBUS, pdev);
if (!pdev)
break;
cookie = pdev->sysdata;
ebusnd = cookie->prom_node;
ebus->next = (struct linux_ebus *)
ebus_alloc(sizeof(struct linux_ebus));
ebus = ebus->next;
ebus->next = 0;
++num_ebus;
}
#ifdef CONFIG_SUN_OPENPROMIO
openprom_init();
#endif
#ifdef CONFIG_SPARCAUDIO
sparcaudio_init();
#endif
#ifdef CONFIG_SUN_BPP
bpp_init();
#endif
#ifdef CONFIG_SUN_AUXIO
auxio_probe();
#endif
#ifdef CONFIG_ENVCTRL
envctrl_init();
#endif
#ifdef CONFIG_OBP_FLASH
flash_init();
#endif
clock_probe();
}
__initfunc(void fill_ebus_device(int node, struct linux_ebus_device *dev))
{
struct linux_prom_registers regs[PROMREG_MAX];
struct linux_ebus_child *child;
int irqs[PROMINTR_MAX];
char lbuf[128];
int i, n, len;
dev->prom_node = node;
prom_getstring(node, "name", lbuf, sizeof(lbuf));
strcpy(dev->prom_name, lbuf);
len = prom_getproperty(node, "reg", (void *)regs, sizeof(regs));
if (len % sizeof(struct linux_prom_registers)) {
prom_printf("UGH: proplen for %s was %d, need multiple of %d\n",
dev->prom_name, len,
(int)sizeof(struct linux_prom_registers));
panic(__FUNCTION__);
}
dev->num_addrs = len / sizeof(struct linux_prom_registers);
for (i = 0; i < dev->num_addrs; i++) {
n = (regs[i].which_io - 0x10) >> 2;
dev->base_address[i] = dev->bus->self->base_address[n];
dev->base_address[i] += (unsigned long)regs[i].phys_addr;
}
len = prom_getproperty(node, "interrupts", (char *)&irqs, sizeof(irqs));
if ((len == -1) || (len == 0)) {
dev->num_irqs = 0;
} else {
dev->num_irqs = len / sizeof(irqs[0]);
for (i = 0; i < dev->num_irqs; i++) {
ebus_intmap_match(dev->bus, ®s[0], &irqs[i]);
dev->irqs[i] = psycho_irq_build(dev->bus->parent,
dev->bus->self, irqs[i]);
}
}
#ifdef DEBUG_FILL_EBUS_DEV
dprintf("'%s': address%s\n", dev->prom_name,
dev->num_addrs > 1 ? "es" : "");
for (i = 0; i < dev->num_addrs; i++)
dprintf(" %016lx\n", dev->base_address[i]);
if (dev->num_irqs) {
dprintf(" IRQ%s", dev->num_irqs > 1 ? "s" : "");
for (i = 0; i < dev->num_irqs; i++)
dprintf(" %s", __irq_itoa(dev->irqs[i]));
dprintf("\n");
}
#endif
if ((node = prom_getchild(node))) {
dev->children = (struct linux_ebus_child *)
ebus_alloc(sizeof(struct linux_ebus_child));
child = dev->children;
child->next = 0;
child->parent = dev;
child->bus = dev->bus;
fill_ebus_child(node, ®s[0], child);
while ((node = prom_getsibling(node))) {
child->next = (struct linux_ebus_child *)
ebus_alloc(sizeof(struct linux_ebus_child));
child = child->next;
child->next = 0;
child->parent = dev;
child->bus = dev->bus;
fill_ebus_child(node, ®s[0], child);
}
}
}
void __init ebus_init(void)
{
struct pci_pbm_info *pbm;
struct linux_ebus_device *dev;
struct linux_ebus *ebus;
struct pci_dev *pdev;
struct pcidev_cookie *cookie;
int nd, ebusnd;
int num_ebus = 0;
if (!pci_present())
return;
pdev = pci_find_device(PCI_VENDOR_ID_SUN, PCI_DEVICE_ID_SUN_EBUS, 0);
if (!pdev) {
printk("ebus: No EBus's found.\n");
return;
}
cookie = pdev->sysdata;
ebusnd = cookie->prom_node;
ebus_chain = ebus = ebus_alloc(sizeof(struct linux_ebus));
ebus->next = 0;
while (ebusnd) {
/* SUNW,pci-qfe uses four empty ebuses on it.
I think we should not consider them here,
as they have half of the properties this
code expects and once we do PCI hot-plug,
we'd have to tweak with the ebus_chain
in the runtime after initialization. -jj */
if (!prom_getchild (ebusnd)) {
pdev = pci_find_device(PCI_VENDOR_ID_SUN,
PCI_DEVICE_ID_SUN_EBUS, pdev);
if (!pdev) {
if (ebus == ebus_chain) {
ebus_chain = NULL;
printk("ebus: No EBus's found.\n");
return;
}
break;
}
cookie = pdev->sysdata;
ebusnd = cookie->prom_node;
continue;
}
printk("ebus%d:", num_ebus);
prom_getstring(ebusnd, "name", ebus->prom_name, sizeof(ebus->prom_name));
ebus->index = num_ebus;
ebus->prom_node = ebusnd;
ebus->self = pdev;
ebus->parent = pbm = cookie->pbm;
ebus_ranges_init(ebus);
ebus_intmap_init(ebus);
nd = prom_getchild(ebusnd);
if (!nd)
goto next_ebus;
ebus->devices = ebus_alloc(sizeof(struct linux_ebus_device));
dev = ebus->devices;
dev->next = 0;
dev->children = 0;
dev->bus = ebus;
fill_ebus_device(nd, dev);
while ((nd = prom_getsibling(nd))) {
dev->next = ebus_alloc(sizeof(struct linux_ebus_device));
dev = dev->next;
dev->next = 0;
dev->children = 0;
dev->bus = ebus;
fill_ebus_device(nd, dev);
}
next_ebus:
printk("\n");
pdev = pci_find_device(PCI_VENDOR_ID_SUN,
PCI_DEVICE_ID_SUN_EBUS, pdev);
if (!pdev)
break;
cookie = pdev->sysdata;
ebusnd = cookie->prom_node;
ebus->next = ebus_alloc(sizeof(struct linux_ebus));
ebus = ebus->next;
ebus->next = 0;
++num_ebus;
}
#ifdef CONFIG_SUN_AUXIO
auxio_probe();
#endif
clock_probe();
power_init();
}
