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authorPaul Mackerras <paulus@samba.org>2006-03-28 10:22:10 +1100
committerPaul Mackerras <paulus@samba.org>2006-03-28 10:22:10 +1100
commit0a26b1364f14852bc9a51db0ca63c5250c775627 (patch)
tree83422473cb4bf4c450012cded06288a0dc6abedf /arch/ppc/syslib
parentff2e6d7e27cf1f757ab0d97e1a9e46de47152a0e (diff)
ppc: Remove CHRP, POWER3 and POWER4 support from arch/ppc
32-bit CHRP machines are now supported only in arch/powerpc, as are all 64-bit PowerPC processors. This means that we don't use Open Firmware on any platform in arch/ppc any more. This makes PReP support a single-platform option like every other platform support option in arch/ppc now, thus CONFIG_PPC_MULTIPLATFORM is gone from arch/ppc. CONFIG_PPC_PREP is the option that selects PReP support and is generally what has replaced CONFIG_PPC_MULTIPLATFORM within arch/ppc. _machine is all but dead now, being #defined to 0. Updated Makefiles, comments and Kconfig options generally to reflect these changes. Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/ppc/syslib')
-rw-r--r--arch/ppc/syslib/Makefile2
-rw-r--r--arch/ppc/syslib/open_pic.c2
-rw-r--r--arch/ppc/syslib/prom.c1429
-rw-r--r--arch/ppc/syslib/prom_init.c1011
4 files changed, 1 insertions, 2443 deletions
diff --git a/arch/ppc/syslib/Makefile b/arch/ppc/syslib/Makefile
index 5cb62c6a51c..490749ca88f 100644
--- a/arch/ppc/syslib/Makefile
+++ b/arch/ppc/syslib/Makefile
@@ -38,8 +38,6 @@ endif
obj-$(CONFIG_8xx) += m8xx_setup.o ppc8xx_pic.o $(wdt-mpc8xx-y) \
ppc_sys.o mpc8xx_devices.o mpc8xx_sys.o
obj-$(CONFIG_PCI_QSPAN) += qspan_pci.o
-obj-$(CONFIG_PPC_OF) += prom_init.o prom.o
-obj-$(CONFIG_PPC_CHRP) += open_pic.o
obj-$(CONFIG_PPC_PREP) += open_pic.o todc_time.o
obj-$(CONFIG_BAMBOO) += pci_auto.o todc_time.o
obj-$(CONFIG_CPCI690) += todc_time.o pci_auto.o
diff --git a/arch/ppc/syslib/open_pic.c b/arch/ppc/syslib/open_pic.c
index 38e5b93fbe4..70456c8f998 100644
--- a/arch/ppc/syslib/open_pic.c
+++ b/arch/ppc/syslib/open_pic.c
@@ -216,7 +216,7 @@ static void openpic_safe_writefield(volatile u_int __iomem *addr, u_int mask,
u_int openpic_read_IPI(volatile u_int __iomem * addr)
{
u_int val = 0;
-#if defined(OPENPIC_BIG_ENDIAN) || defined(CONFIG_POWER3)
+#if defined(OPENPIC_BIG_ENDIAN)
val = in_be32(addr);
#else
val = in_le32(addr);
diff --git a/arch/ppc/syslib/prom.c b/arch/ppc/syslib/prom.c
deleted file mode 100644
index 482f837fd37..00000000000
--- a/arch/ppc/syslib/prom.c
+++ /dev/null
@@ -1,1429 +0,0 @@
-/*
- * Procedures for interfacing to the Open Firmware PROM on
- * Power Macintosh computers.
- *
- * In particular, we are interested in the device tree
- * and in using some of its services (exit, write to stdout).
- *
- * Paul Mackerras August 1996.
- * Copyright (C) 1996 Paul Mackerras.
- */
-#include <stdarg.h>
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/init.h>
-#include <linux/threads.h>
-#include <linux/spinlock.h>
-#include <linux/ioport.h>
-#include <linux/pci.h>
-#include <linux/slab.h>
-#include <linux/bitops.h>
-
-#include <asm/sections.h>
-#include <asm/prom.h>
-#include <asm/page.h>
-#include <asm/processor.h>
-#include <asm/irq.h>
-#include <asm/io.h>
-#include <asm/smp.h>
-#include <asm/bootx.h>
-#include <asm/system.h>
-#include <asm/mmu.h>
-#include <asm/pgtable.h>
-#include <asm/bootinfo.h>
-#include <asm/btext.h>
-#include <asm/pci-bridge.h>
-#include <asm/open_pic.h>
-
-
-struct pci_address {
- unsigned a_hi;
- unsigned a_mid;
- unsigned a_lo;
-};
-
-struct pci_reg_property {
- struct pci_address addr;
- unsigned size_hi;
- unsigned size_lo;
-};
-
-struct isa_reg_property {
- unsigned space;
- unsigned address;
- unsigned size;
-};
-
-typedef unsigned long interpret_func(struct device_node *, unsigned long,
- int, int);
-static interpret_func interpret_pci_props;
-static interpret_func interpret_dbdma_props;
-static interpret_func interpret_isa_props;
-static interpret_func interpret_macio_props;
-static interpret_func interpret_root_props;
-
-extern char *klimit;
-
-/* Set for a newworld or CHRP machine */
-int use_of_interrupt_tree;
-struct device_node *dflt_interrupt_controller;
-int num_interrupt_controllers;
-
-extern unsigned int rtas_entry; /* physical pointer */
-
-extern struct device_node *allnodes;
-
-static unsigned long finish_node(struct device_node *, unsigned long,
- interpret_func *, int, int);
-static unsigned long finish_node_interrupts(struct device_node *, unsigned long);
-static struct device_node *find_phandle(phandle);
-
-extern void enter_rtas(void *);
-void phys_call_rtas(int, int, int, ...);
-
-extern char cmd_line[512]; /* XXX */
-extern boot_infos_t *boot_infos;
-unsigned long dev_tree_size;
-
-void
-phys_call_rtas(int service, int nargs, int nret, ...)
-{
- va_list list;
- union {
- unsigned long words[16];
- double align;
- } u;
- void (*rtas)(void *, unsigned long);
- int i;
-
- u.words[0] = service;
- u.words[1] = nargs;
- u.words[2] = nret;
- va_start(list, nret);
- for (i = 0; i < nargs; ++i)
- u.words[i+3] = va_arg(list, unsigned long);
- va_end(list);
-
- rtas = (void (*)(void *, unsigned long)) rtas_entry;
- rtas(&u, rtas_data);
-}
-
-/*
- * finish_device_tree is called once things are running normally
- * (i.e. with text and data mapped to the address they were linked at).
- * It traverses the device tree and fills in the name, type,
- * {n_}addrs and {n_}intrs fields of each node.
- */
-void __init
-finish_device_tree(void)
-{
- unsigned long mem = (unsigned long) klimit;
- struct device_node *np;
-
- /* All CHRPs now use the interrupt tree */
- for (np = allnodes; np != NULL; np = np->allnext) {
- if (get_property(np, "interrupt-parent", NULL)) {
- use_of_interrupt_tree = 1;
- break;
- }
- }
-
- if (use_of_interrupt_tree) {
- /*
- * We want to find out here how many interrupt-controller
- * nodes there are, and if we are booted from BootX,
- * we need a pointer to the first (and hopefully only)
- * such node. But we can't use find_devices here since
- * np->name has not been set yet. -- paulus
- */
- int n = 0;
- char *name, *ic;
- int iclen;
-
- for (np = allnodes; np != NULL; np = np->allnext) {
- ic = get_property(np, "interrupt-controller", &iclen);
- name = get_property(np, "name", NULL);
- /* checking iclen makes sure we don't get a false
- match on /chosen.interrupt_controller */
- if ((name != NULL
- && strcmp(name, "interrupt-controller") == 0)
- || (ic != NULL && iclen == 0 && strcmp(name, "AppleKiwi"))) {
- if (n == 0)
- dflt_interrupt_controller = np;
- ++n;
- }
- }
- num_interrupt_controllers = n;
- }
-
- mem = finish_node(allnodes, mem, NULL, 1, 1);
- dev_tree_size = mem - (unsigned long) allnodes;
- klimit = (char *) mem;
-}
-
-static unsigned long __init
-finish_node(struct device_node *np, unsigned long mem_start,
- interpret_func *ifunc, int naddrc, int nsizec)
-{
- struct device_node *child;
- int *ip;
-
- np->name = get_property(np, "name", NULL);
- np->type = get_property(np, "device_type", NULL);
-
- if (!np->name)
- np->name = "<NULL>";
- if (!np->type)
- np->type = "<NULL>";
-
- /* get the device addresses and interrupts */
- if (ifunc != NULL)
- mem_start = ifunc(np, mem_start, naddrc, nsizec);
-
- if (use_of_interrupt_tree)
- mem_start = finish_node_interrupts(np, mem_start);
-
- /* Look for #address-cells and #size-cells properties. */
- ip = (int *) get_property(np, "#address-cells", NULL);
- if (ip != NULL)
- naddrc = *ip;
- ip = (int *) get_property(np, "#size-cells", NULL);
- if (ip != NULL)
- nsizec = *ip;
-
- if (np->parent == NULL)
- ifunc = interpret_root_props;
- else if (np->type == 0)
- ifunc = NULL;
- else if (!strcmp(np->type, "pci") || !strcmp(np->type, "vci"))
- ifunc = interpret_pci_props;
- else if (!strcmp(np->type, "dbdma"))
- ifunc = interpret_dbdma_props;
- else if (!strcmp(np->type, "mac-io")
- || ifunc == interpret_macio_props)
- ifunc = interpret_macio_props;
- else if (!strcmp(np->type, "isa"))
- ifunc = interpret_isa_props;
- else if (!strcmp(np->name, "uni-n") || !strcmp(np->name, "u3"))
- ifunc = interpret_root_props;
- else if (!((ifunc == interpret_dbdma_props
- || ifunc == interpret_macio_props)
- && (!strcmp(np->type, "escc")
- || !strcmp(np->type, "media-bay"))))
- ifunc = NULL;
-
- /* if we were booted from BootX, convert the full name */
- if (boot_infos
- && strncmp(np->full_name, "Devices:device-tree", 19) == 0) {
- if (np->full_name[19] == 0) {
- strcpy(np->full_name, "/");
- } else if (np->full_name[19] == ':') {
- char *p = np->full_name + 19;
- np->full_name = p;
- for (; *p; ++p)
- if (*p == ':')
- *p = '/';
- }
- }
-
- for (child = np->child; child != NULL; child = child->sibling)
- mem_start = finish_node(child, mem_start, ifunc,
- naddrc, nsizec);
-
- return mem_start;
-}
-
-/*
- * Find the interrupt parent of a node.
- */
-static struct device_node * __init
-intr_parent(struct device_node *p)
-{
- phandle *parp;
-
- parp = (phandle *) get_property(p, "interrupt-parent", NULL);
- if (parp == NULL)
- return p->parent;
- p = find_phandle(*parp);
- if (p != NULL)
- return p;
- /*
- * On a powermac booted with BootX, we don't get to know the
- * phandles for any nodes, so find_phandle will return NULL.
- * Fortunately these machines only have one interrupt controller
- * so there isn't in fact any ambiguity. -- paulus
- */
- if (num_interrupt_controllers == 1)
- p = dflt_interrupt_controller;
- return p;
-}
-
-/*
- * Find out the size of each entry of the interrupts property
- * for a node.
- */
-static int __init
-prom_n_intr_cells(struct device_node *np)
-{
- struct device_node *p;
- unsigned int *icp;
-
- for (p = np; (p = intr_parent(p)) != NULL; ) {
- icp = (unsigned int *)
- get_property(p, "#interrupt-cells", NULL);
- if (icp != NULL)
- return *icp;
- if (get_property(p, "interrupt-controller", NULL) != NULL
- || get_property(p, "interrupt-map", NULL) != NULL) {
- printk("oops, node %s doesn't have #interrupt-cells\n",
- p->full_name);
- return 1;
- }
- }
- printk("prom_n_intr_cells failed for %s\n", np->full_name);
- return 1;
-}
-
-/*
- * Map an interrupt from a device up to the platform interrupt
- * descriptor.
- */
-static int __init
-map_interrupt(unsigned int **irq, struct device_node **ictrler,
- struct device_node *np, unsigned int *ints, int nintrc)
-{
- struct device_node *p, *ipar;
- unsigned int *imap, *imask, *ip;
- int i, imaplen, match;
- int newintrc = 1, newaddrc = 1;
- unsigned int *reg;
- int naddrc;
-
- reg = (unsigned int *) get_property(np, "reg", NULL);
- naddrc = prom_n_addr_cells(np);
- p = intr_parent(np);
- while (p != NULL) {
- if (get_property(p, "interrupt-controller", NULL) != NULL)
- /* this node is an interrupt controller, stop here */
- break;
- imap = (unsigned int *)
- get_property(p, "interrupt-map", &imaplen);
- if (imap == NULL) {
- p = intr_parent(p);
- continue;
- }
- imask = (unsigned int *)
- get_property(p, "interrupt-map-mask", NULL);
- if (imask == NULL) {
- printk("oops, %s has interrupt-map but no mask\n",
- p->full_name);
- return 0;
- }
- imaplen /= sizeof(unsigned int);
- match = 0;
- ipar = NULL;
- while (imaplen > 0 && !match) {
- /* check the child-interrupt field */
- match = 1;
- for (i = 0; i < naddrc && match; ++i)
- match = ((reg[i] ^ imap[i]) & imask[i]) == 0;
- for (; i < naddrc + nintrc && match; ++i)
- match = ((ints[i-naddrc] ^ imap[i]) & imask[i]) == 0;
- imap += naddrc + nintrc;
- imaplen -= naddrc + nintrc;
- /* grab the interrupt parent */
- ipar = find_phandle((phandle) *imap++);
- --imaplen;
- if (ipar == NULL && num_interrupt_controllers == 1)
- /* cope with BootX not giving us phandles */
- ipar = dflt_interrupt_controller;
- if (ipar == NULL) {
- printk("oops, no int parent %x in map of %s\n",
- imap[-1], p->full_name);
- return 0;
- }
- /* find the parent's # addr and intr cells */
- ip = (unsigned int *)
- get_property(ipar, "#interrupt-cells", NULL);
- if (ip == NULL) {
- printk("oops, no #interrupt-cells on %s\n",
- ipar->full_name);
- return 0;
- }
- newintrc = *ip;
- ip = (unsigned int *)
- get_property(ipar, "#address-cells", NULL);
- newaddrc = (ip == NULL)? 0: *ip;
- imap += newaddrc + newintrc;
- imaplen -= newaddrc + newintrc;
- }
- if (imaplen < 0) {
- printk("oops, error decoding int-map on %s, len=%d\n",
- p->full_name, imaplen);
- return 0;
- }
- if (!match) {
- printk("oops, no match in %s int-map for %s\n",
- p->full_name, np->full_name);
- return 0;
- }
- p = ipar;
- naddrc = newaddrc;
- nintrc = newintrc;
- ints = imap - nintrc;
- reg = ints - naddrc;
- }
- if (p == NULL)
- printk("hmmm, int tree for %s doesn't have ctrler\n",
- np->full_name);
- *irq = ints;
- *ictrler = p;
- return nintrc;
-}
-
-/*
- * New version of finish_node_interrupts.
- */
-static unsigned long __init
-finish_node_interrupts(struct device_node *np, unsigned long mem_start)
-{
- unsigned int *ints;
- int intlen, intrcells;
- int i, j, n, offset;
- unsigned int *irq;
- struct device_node *ic;
-
- ints = (unsigned int *) get_property(np, "interrupts", &intlen);
- if (ints == NULL)
- return mem_start;
- intrcells = prom_n_intr_cells(np);
- intlen /= intrcells * sizeof(unsigned int);
- np->n_intrs = intlen;
- np->intrs = (struct interrupt_info *) mem_start;
- mem_start += intlen * sizeof(struct interrupt_info);
-
- for (i = 0; i < intlen; ++i) {
- np->intrs[i].line = 0;
- np->intrs[i].sense = 1;
- n = map_interrupt(&irq, &ic, np, ints, intrcells);
- if (n <= 0)
- continue;
- offset = 0;
- /*
- * On a CHRP we have an 8259 which is subordinate to
- * the openpic in the interrupt tree, but we want the
- * openpic's interrupt numbers offsetted, not the 8259's.
- * So we apply the offset if the controller is at the
- * root of the interrupt tree, i.e. has no interrupt-parent.
- * This doesn't cope with the general case of multiple
- * cascaded interrupt controllers, but then neither will
- * irq.c at the moment either. -- paulus
- * The G5 triggers that code, I add a machine test. On
- * those machines, we want to offset interrupts from the
- * second openpic by 128 -- BenH
- */
- if (num_interrupt_controllers > 1
- && ic != NULL
- && get_property(ic, "interrupt-parent", NULL) == NULL)
- offset = 16;
-
- np->intrs[i].line = irq[0] + offset;
- if (n > 1)
- np->intrs[i].sense = irq[1];
- if (n > 2) {
- printk("hmmm, got %d intr cells for %s:", n,
- np->full_name);
- for (j = 0; j < n; ++j)
- printk(" %d", irq[j]);
- printk("\n");
- }
- ints += intrcells;
- }
-
- return mem_start;
-}
-
-/*
- * When BootX makes a copy of the device tree from the MacOS
- * Name Registry, it is in the format we use but all of the pointers
- * are offsets from the start of the tree.
- * This procedure updates the pointers.
- */
-void __init
-relocate_nodes(void)
-{
- unsigned long base;
- struct device_node *np;
- struct property *pp;
-
-#define ADDBASE(x) (x = (typeof (x))((x)? ((unsigned long)(x) + base): 0))
-
- base = (unsigned long) boot_infos + boot_infos->deviceTreeOffset;
- allnodes = (struct device_node *)(base + 4);
- for (np = allnodes; np != 0; np = np->allnext) {
- ADDBASE(np->full_name);
- ADDBASE(np->properties);
- ADDBASE(np->parent);
- ADDBASE(np->child);
- ADDBASE(np->sibling);
- ADDBASE(np->allnext);
- for (pp = np->properties; pp != 0; pp = pp->next) {
- ADDBASE(pp->name);
- ADDBASE(pp->value);
- ADDBASE(pp->next);
- }
- }
-}
-
-int
-prom_n_addr_cells(struct device_node* np)
-{
- int* ip;
- do {
- if (np->parent)
- np = np->parent;
- ip = (int *) get_property(np, "#address-cells", NULL);
- if (ip != NULL)
- return *ip;
- } while (np->parent);
- /* No #address-cells property for the root node, default to 1 */
- return 1;
-}
-
-int
-prom_n_size_cells(struct device_node* np)
-{
- int* ip;
- do {
- if (np->parent)
- np = np->parent;
- ip = (int *) get_property(np, "#size-cells", NULL);
- if (ip != NULL)
- return *ip;
- } while (np->parent);
- /* No #size-cells property for the root node, default to 1 */
- return 1;
-}
-
-static unsigned long __init
-map_addr(struct device_node *np, unsigned long space, unsigned long addr)
-{
- int na;
- unsigned int *ranges;
- int rlen = 0;
- unsigned int type;
-
- type = (space >> 24) & 3;
- if (type == 0)
- return addr;
-
- while ((np = np->parent) != NULL) {
- if (strcmp(np->type, "pci") != 0)
- continue;
- /* PCI bridge: map the address through the ranges property */
- na = prom_n_addr_cells(np);
- ranges = (unsigned int *) get_property(np, "ranges", &rlen);
- while ((rlen -= (na + 5) * sizeof(unsigned int)) >= 0) {
- if (((ranges[0] >> 24) & 3) == type
- && ranges[2] <= addr
- && addr - ranges[2] < ranges[na+4]) {
- /* ok, this matches, translate it */
- addr += ranges[na+2] - ranges[2];
- break;
- }
- ranges += na + 5;
- }
- }
- return addr;
-}
-
-static unsigned long __init
-interpret_pci_props(struct device_node *np, unsigned long mem_start,
- int naddrc, int nsizec)
-{
- struct address_range *adr;
- struct pci_reg_property *pci_addrs;
- int i, l, *ip;
-
- pci_addrs = (struct pci_reg_property *)
- get_property(np, "assigned-addresses", &l);
- if (pci_addrs != 0 && l >= sizeof(struct pci_reg_property)) {
- i = 0;
- adr = (struct address_range *) mem_start;
- while ((l -= sizeof(struct pci_reg_property)) >= 0) {
- adr[i].space = pci_addrs[i].addr.a_hi;
- adr[i].address = map_addr(np, pci_addrs[i].addr.a_hi,
- pci_addrs[i].addr.a_lo);
- adr[i].size = pci_addrs[i].size_lo;
- ++i;
- }
- np->addrs = adr;
- np->n_addrs = i;
- mem_start += i * sizeof(struct address_range);
- }
-
- if (use_of_interrupt_tree)
- return mem_start;
-
- ip = (int *) get_property(np, "AAPL,interrupts", &l);
- if (ip == 0 && np->parent)
- ip = (int *) get_property(np->parent, "AAPL,interrupts", &l);
- if (ip == 0)
- ip = (int *) get_property(np, "interrupts", &l);
- if (ip != 0) {
- np->intrs = (struct interrupt_info *) mem_start;
- np->n_intrs = l / sizeof(int);
- mem_start += np->n_intrs * sizeof(struct interrupt_info);
- for (i = 0; i < np->n_intrs; ++i) {
- np->intrs[i].line = *ip++;
- np->intrs[i].sense = 1;
- }
- }
-
- return mem_start;
-}
-
-static unsigned long __init
-interpret_dbdma_props(struct device_node *np, unsigned long mem_start,
- int naddrc, int nsizec)
-{
- struct reg_property *rp;
- struct address_range *adr;
- unsigned long base_address;
- int i, l, *ip;
- struct device_node *db;
-
- base_address = 0;
- for (db = np->parent; db != NULL; db = db->parent) {
- if (!strcmp(db->type, "dbdma") && db->n_addrs != 0) {
- base_address = db->addrs[0].address;
- break;
- }
- }
-
- rp = (struct reg_property *) get_property(np, "reg", &l);
- if (rp != 0 && l >= sizeof(struct reg_property)) {
- i = 0;
- adr = (struct address_range *) mem_start;
- while ((l -= sizeof(struct reg_property)) >= 0) {
- adr[i].space = 2;
- adr[i].address = rp[i].address + base_address;
- adr[i].size = rp[i].size;
- ++i;
- }
- np->addrs = adr;
- np->n_addrs = i;
- mem_start += i * sizeof(struct address_range);
- }
-
- if (use_of_interrupt_tree)
- return mem_start;
-
- ip = (int *) get_property(np, "AAPL,interrupts", &l);
- if (ip == 0)
- ip = (int *) get_property(np, "interrupts", &l);
- if (ip != 0) {
- np->intrs = (struct interrupt_info *) mem_start;
- np->n_intrs = l / sizeof(int);
- mem_start += np->n_intrs * sizeof(struct interrupt_info);
- for (i = 0; i < np->n_intrs; ++i) {
- np->intrs[i].line = *ip++;
- np->intrs[i].sense = 1;
- }
- }
-
- return mem_start;
-}
-
-static unsigned long __init
-interpret_macio_props(struct device_node *np, unsigned long mem_start,
- int naddrc, int nsizec)
-{
- struct reg_property *rp;
- struct address_range *adr;
- unsigned long base_address;
- int i, l, *ip;
- struct device_node *db;
-
- base_address = 0;
- for (db = np->parent; db != NULL; db = db->parent) {
- if (!strcmp(db->type, "mac-io") && db->n_addrs != 0) {
- base_address = db->addrs[0].address;
- break;
- }
- }
-
- rp = (struct reg_property *) get_property(np, "reg", &l);
- if (rp != 0 && l >= sizeof(struct reg_property)) {
- i = 0;
- adr = (struct address_range *) mem_start;
- while ((l -= sizeof(struct reg_property)) >= 0) {
- adr[i].space = 2;
- adr[i].address = rp[i].address + base_address;
- adr[i].size = rp[i].size;
- ++i;
- }
- np->addrs = adr;
- np->n_addrs = i;
- mem_start += i * sizeof(struct address_range);
- }
-
- if (use_of_interrupt_tree)
- return mem_start;
-
- ip = (int *) get_property(np, "interrupts", &l);
- if (ip == 0)
- ip = (int *) get_property(np, "AAPL,interrupts", &l);
- if (ip != 0) {
- np->intrs = (struct interrupt_info *) mem_start;
- np->n_intrs = l / sizeof(int);
- for (i = 0; i < np->n_intrs; ++i) {
- np->intrs[i].line = *ip++;
- np->intrs[i].sense = 1;
- }
- mem_start += np->n_intrs * sizeof(struct interrupt_info);
- }
-
- return mem_start;
-}
-
-static unsigned long __init
-interpret_isa_props(struct device_node *np, unsigned long mem_start,
- int naddrc, int nsizec)
-{
- struct isa_reg_property *rp;
- struct address_range *adr;
- int i, l, *ip;
-
- rp = (struct isa_reg_property *) get_property(np, "reg", &l);
- if (rp != 0 && l >= sizeof(struct isa_reg_property)) {
- i = 0;
- adr = (struct address_range *) mem_start;
- while ((l -= sizeof(struct reg_property)) >= 0) {
- adr[i].space = rp[i].space;
- adr[i].address = rp[i].address
- + (adr[i].space? 0: _ISA_MEM_BASE);
- adr[i].size = rp[i].size;
- ++i;
- }
- np->addrs = adr;
- np->n_addrs = i;
- mem_start += i * sizeof(struct address_range);
- }
-
- if (use_of_interrupt_tree)
- return mem_start;
-
- ip = (int *) get_property(np, "interrupts", &l);
- if (ip != 0) {
- np->intrs = (struct interrupt_info *) mem_start;
- np->n_intrs = l / (2 * sizeof(int));
- mem_start += np->n_intrs * sizeof(struct interrupt_info);
- for (i = 0; i < np->n_intrs; ++i) {
- np->intrs[i].line = *ip++;
- np->intrs[i].sense = *ip++;
- }
- }
-
- return mem_start;
-}
-
-static unsigned long __init
-interpret_root_props(struct device_node *np, unsigned long mem_start,
- int naddrc, int nsizec)
-{
- struct address_range *adr;
- int i, l, *ip;
- unsigned int *rp;
- int rpsize = (naddrc + nsizec) * sizeof(unsigned int);
-
- rp = (unsigned int *) get_property(np, "reg", &l);
- if (rp != 0 && l >= rpsize) {
- i = 0;
- adr = (struct address_range *) mem_start;
- while ((l -= rpsize) >= 0) {
- adr[i].space = (naddrc >= 2? rp[naddrc-2]: 2);
- adr[i].address = rp[naddrc - 1];
- adr[i].size = rp[naddrc + nsizec - 1];
- ++i;
- rp += naddrc + nsizec;
- }
- np->addrs = adr;
- np->n_addrs = i;
- mem_start += i * sizeof(struct address_range);
- }
-
- if (use_of_interrupt_tree)
- return mem_start;
-
- ip = (int *) get_property(np, "AAPL,interrupts", &l);
- if (ip == 0)
- ip = (int *) get_property(np, "interrupts", &l);
- if (ip != 0) {
- np->intrs = (struct interrupt_info *) mem_start;
- np->n_intrs = l / sizeof(int);
- mem_start += np->n_intrs * sizeof(struct interrupt_info);
- for (i = 0; i < np->n_intrs; ++i) {
- np->intrs[i].line = *ip++;
- np->intrs[i].sense = 1;
- }
- }
-
- return mem_start;
-}
-
-/*
- * Work out the sense (active-low level / active-high edge)
- * of each interrupt from the device tree.
- */
-void __init
-prom_get_irq_senses(unsigned char *senses, int off, int max)
-{
- struct device_node *np;
- int i, j;
-
- /* default to level-triggered */
- memset(senses, 1, max - off);
- if (!use_of_interrupt_tree)
- return;
-
- for (np = allnodes; np != 0; np = np->allnext) {
- for (j = 0; j < np->n_intrs; j++) {
- i = np->intrs[j].line;
- if (i >= off && i < max) {
- if (np->intrs[j].sense == 1)
- senses[i-off] = (IRQ_SENSE_LEVEL
- | IRQ_POLARITY_NEGATIVE);
- else
- senses[i-off] = (IRQ_SENSE_EDGE
- | IRQ_POLARITY_POSITIVE);
- }
- }
- }
-}
-
-/*
- * Construct and return a list of the device_nodes with a given name.
- */
-struct device_node *
-find_devices(const char *name)
-{
- struct device_node *head, **prevp, *np;
-
- prevp = &head;
- for (np = allnodes; np != 0; np = np->allnext) {
- if (np->name != 0 && strcasecmp(np->name, name) == 0) {
- *prevp = np;
- prevp = &np->next;
- }
- }
- *prevp = NULL;
- return head;
-}
-
-/*
- * Construct and return a list of the device_nodes with a given type.
- */
-struct device_node *
-find_type_devices(const char *type)
-{
- struct device_node *head, **prevp, *np;
-
- prevp = &head;
- for (np = allnodes; np != 0; np = np->allnext) {
- if (np->type != 0 && strcasecmp(np->type, type) == 0) {
- *prevp = np;
- prevp = &np->next;
- }
- }
- *prevp = NULL;
- return head;
-}
-
-/*
- * Returns all nodes linked together
- */
-struct device_node *
-find_all_nodes(void)
-{
- struct device_node *head, **prevp, *np;
-
- prevp = &head;
- for (np = allnodes; np != 0; np = np->allnext) {
- *prevp = np;
- prevp = &np->next;
- }
- *prevp = NULL;
- return head;
-}
-
-/* Checks if the given "compat" string matches one of the strings in
- * the device's "compatible" property
- */
-int
-device_is_compatible(struct device_node *device, const char *compat)
-{
- const char* cp;
- int cplen, l;
-
- cp = (char *) get_property(device, "compatible", &cplen);
- if (cp == NULL)
- return 0;
- while (cplen > 0) {
- if (strncasecmp(cp, compat, strlen(compat)) == 0)
- return 1;
- l = strlen(cp) + 1;
- cp += l;
- cplen -= l;
- }
-
- return 0;
-}
-
-
-/*
- * Indicates whether the root node has a given value in its
- * compatible property.
- */
-int
-machine_is_compatible(const char *compat)
-{
- struct device_node *root;
-
- root = find_path_device("/");
- if (root == 0)
- return 0;
- return device_is_compatible(root, compat);
-}
-
-/*
- * Construct and return a list of the device_nodes with a given type
- * and compatible property.
- */
-struct device_node *
-find_compatible_devices(const char *type, const char *compat)
-{
- struct device_node *head, **prevp, *np;
-
- prevp = &head;
- for (np = allnodes; np != 0; np = np->allnext) {
- if (type != NULL
- && !(np->type != 0 && strcasecmp(np->type, type) == 0))
- continue;
- if (device_is_compatible(np, compat)) {
- *prevp = np;
- prevp = &np->next;
- }
- }
- *prevp = NULL;
- return head;
-}
-
-/*
- * Find the device_node with a given full_name.
- */
-struct device_node *
-find_path_device(const char *path)
-{
- struct device_node *np;
-
- for (np = allnodes; np != 0; np = np->allnext)
- if (np->full_name != 0 && strcasecmp(np->full_name, path) == 0)
- return np;
- return NULL;
-}
-
-/*******
- *
- * New implementation of the OF "find" APIs, return a refcounted
- * object, call of_node_put() when done. Currently, still lacks
- * locking as old implementation, this is beeing done for ppc64.
- *
- * Note that property management will need some locking as well,
- * this isn't dealt with yet
- *
- *******/
-
-/**
- * of_find_node_by_name - Find a node by it's "name" property
- * @from: The node to start searching from or NULL, the node
- * you pass will not be searched, only the next one
- * will; typically, you pass what the previous call
- * returned. of_node_put() will be called on it
- * @name: The name string to match against
- *
- * Returns a node pointer with refcount incremented, use
- * of_node_put() on it when done.
- */
-struct device_node *of_find_node_by_name(struct device_node *from,
- const char *name)
-{
- struct device_node *np = from ? from->allnext : allnodes;
-
- for (; np != 0; np = np->allnext)
- if (np->name != 0 && strcasecmp(np->name, name) == 0)
- break;
- if (from)
- of_node_put(from);
- return of_node_get(np);
-}
-
-/**
- * of_find_node_by_type - Find a node by it's "device_type" property
- * @from: The node to start searching from or NULL, the node
- * you pass will not be searched, only the next one
- * will; typically, you pass what the previous call
- * returned. of_node_put() will be called on it
- * @name: The type string to match against
- *
- * Returns a node pointer with refcount incremented, use
- * of_node_put() on it when done.
- */
-struct device_node *of_find_node_by_type(struct device_node *from,
- const char *type)
-{
- struct device_node *np = from ? from->allnext : allnodes;
-
- for (; np != 0; np = np->allnext)
- if (np->type != 0 && strcasecmp(np->type, type) == 0)
- break;
- if (from)
- of_node_put(from);
- return of_node_get(np);
-}
-
-/**
- * of_find_compatible_node - Find a node based on type and one of the
- * tokens in it's "compatible" property
- * @from: The node to start searching from or NULL, the node
- * you pass will not be searched, only the next one
- * will; typically, you pass what the previous call
- * returned. of_node_put() will be called on it
- * @type: The type string to match "device_type" or NULL to ignore
- * @compatible: The string to match to one of the tokens in the device
- * "compatible" list.
- *
- * Returns a node pointer with refcount incremented, use
- * of_node_put() on it when done.
- */
-struct device_node *of_find_compatible_node(struct device_node *from,
- const char *type, const char *compatible)
-{
- struct device_node *np = from ? from->allnext : allnodes;
-
- for (; np != 0; np = np->allnext) {
- if (type != NULL
- && !(np->type != 0 && strcasecmp(np->type, type) == 0))
- continue;
- if (device_is_compatible(np, compatible))
- break;
- }
- if (from)
- of_node_put(from);
- return of_node_get(np);
-}
-
-/**
- * of_find_node_by_path - Find a node matching a full OF path
- * @path: The full path to match
- *
- * Returns a node pointer with refcount incremented, use
- * of_node_put() on it when done.
- */
-struct device_node *of_find_node_by_path(const char *path)
-{
- struct device_node *np = allnodes;
-
- for (; np != 0; np = np->allnext)
- if (np->full_name != 0 && strcasecmp(np->full_name, path) == 0)
- break;
- return of_node_get(np);
-}
-
-/**
- * of_find_all_nodes - Get next node in global list
- * @prev: Previous node or NULL to start iteration
- * of_node_put() will be called on it
- *
- * Returns a node pointer with refcount incremented, use
- * of_node_put() on it when done.
- */
-struct device_node *of_find_all_nodes(struct device_node *prev)
-{
- return of_node_get(prev ? prev->allnext : allnodes);
-}
-
-/**
- * of_get_parent - Get a node's parent if any
- * @node: Node to get parent
- *
- * Returns a node pointer with refcount incremented, use
- * of_node_put() on it when done.
- */
-struct device_node *of_get_parent(const struct device_node *node)
-{
- return node ? of_node_get(node->parent) : NULL;
-}
-
-/**
- * of_get_next_child - Iterate a node childs
- * @node: parent node
- * @prev: previous child of the parent node, or NULL to get first
- *
- * Returns a node pointer with refcount incremented, use
- * of_node_put() on it when done.
- */
-struct device_node *of_get_next_child(const struct device_node *node,
- struct device_node *prev)
-{
- struct device_node *next = prev ? prev->sibling : node->child;
-
- for (; next != 0; next = next->sibling)
- if (of_node_get(next))
- break;
- if (prev)
- of_node_put(prev);
- return next;
-}
-
-/**
- * of_node_get - Increment refcount of a node
- * @node: Node to inc refcount, NULL is supported to
- * simplify writing of callers
- *
- * Returns the node itself or NULL if gone. Current implementation
- * does nothing as we don't yet do dynamic node allocation on ppc32
- */
-struct device_node *of_node_get(struct device_node *node)
-{
- return node;
-}
-
-/**
- * of_node_put - Decrement refcount of a node
- * @node: Node to dec refcount, NULL is supported to
- * simplify writing of callers
- *
- * Current implementation does nothing as we don't yet do dynamic node
- * allocation on ppc32
- */
-void of_node_put(struct device_node *node)
-{
-}
-
-/*
- * Find the device_node with a given phandle.
- */
-static struct device_node * __init
-find_phandle(phandle ph)
-{
- struct device_node *np;
-
- for (np = allnodes; np != 0; np = np->allnext)
- if (np->node == ph)
- return np;
- return NULL;
-}
-
-/*
- * Find a property with a given name for a given node
- * and return the value.
- */
-unsigned char *
-get_property(struct device_node *np, const char *name, int *lenp)
-{
- struct property *pp;
-
- for (pp = np->properties; pp != 0; pp = pp->next)
- if (pp->name != NULL && strcmp(pp->name, name) == 0) {
- if (lenp != 0)
- *lenp = pp->length;
- return pp->value;
- }
- return NULL;
-}
-
-/*
- * Add a property to a node
- */
-int
-prom_add_property(struct device_node* np, struct property* prop)
-{
- struct property **next = &np->properties;
-
- prop->next = NULL;
- while (*next)
- next = &(*next)->next;
- *next = prop;
-
- return 0;
-}
-
-/* I quickly hacked that one, check against spec ! */
-static inline unsigned long
-bus_space_to_resource_flags(unsigned int bus_space)
-{
- u8 space = (bus_space >> 24) & 0xf;
- if (space == 0)
- space = 0x02;
- if (space == 0x02)
- return IORESOURCE_MEM;
- else if (space == 0x01)
- return IORESOURCE_IO;
- else {
- printk(KERN_WARNING "prom.c: bus_space_to_resource_flags(), space: %x\n",
- bus_space);
- return 0;
- }
-}
-
-static struct resource*
-find_parent_pci_resource(struct pci_dev* pdev, struct address_range *range)
-{
- unsigned long mask;
- int i;
-
- /* Check this one */
- mask = bus_space_to_resource_flags(range->space);
- for (i=0; i<DEVICE_COUNT_RESOURCE; i++) {
- if ((pdev->resource[i].flags & mask) == mask &&
- pdev->resource[i].start <= range->address &&
- pdev->resource[i].end > range->address) {
- if ((range->address + range->size - 1) > pdev->resource[i].end) {
- /* Add better message */
- printk(KERN_WARNING "PCI/OF resource overlap !\n");
- return NULL;
- }
- break;
- }
- }
- if (i == DEVICE_COUNT_RESOURCE)
- return NULL;
- return &pdev->resource[i];
-}
-
-/*
- * Request an OF device resource. Currently handles child of PCI devices,
- * or other nodes attached to the root node. Ultimately, put some
- * link to resources in the OF node.
- */
-struct resource*
-request_OF_resource(struct device_node* node, int index, const char* name_postfix)
-{
- struct pci_dev* pcidev;
- u8 pci_bus, pci_devfn;
- unsigned long iomask;
- struct device_node* nd;
- struct resource* parent;
- struct resource *res = NULL;
- int nlen, plen;
-
- if (index >= node->n_addrs)
- goto fail;
-
- /* Sanity check on bus space */
- iomask = bus_space_to_resource_flags(node->addrs[index].space);
- if (iomask & IORESOURCE_MEM)
- parent = &iomem_resource;
- else if (iomask & IORESOURCE_IO)
- parent = &ioport_resource;
- else
- goto fail;
-
- /* Find a PCI parent if any */
- nd = node;
- pcidev = NULL;
- while(nd) {
- if (!pci_device_from_OF_node(nd, &pci_bus, &pci_devfn))
- pcidev = pci_find_slot(pci_bus, pci_devfn);
- if (pcidev) break;
- nd = nd->parent;
- }
- if (pcidev)
- parent = find_parent_pci_resource(pcidev, &node->addrs[index]);
- if (!parent) {
- printk(KERN_WARNING "request_OF_resource(%s), parent not found\n",
- node->name);
- goto fail;
- }
-
- res = __request_region(parent, node->addrs[index].address, node->addrs[index].size, NULL);
- if (!res)
- goto fail;
- nlen = strlen(node->name);
- plen = name_postfix ? strlen(name_postfix) : 0;
- res->name = (const char *)kmalloc(nlen+plen+1, GFP_KERNEL);
- if (res->name) {
- strcpy((char *)res->name, node->name);
- if (plen)
- strcpy((char *)res->name+nlen, name_postfix);
- }
- return res;
-fail:
- return NULL;
-}
-
-int
-release_OF_resource(struct device_node* node, int index)
-{
- struct pci_dev* pcidev;
- u8 pci_bus, pci_devfn;
- unsigned long iomask, start, end;
- struct device_node* nd;
- struct resource* parent;
- struct resource *res = NULL;
-
- if (index >= node->n_addrs)
- return -EINVAL;
-
- /* Sanity check on bus space */
- iomask = bus_space_to_resource_flags(node->addrs[index].space);
- if (iomask & IORESOURCE_MEM)
- parent = &iomem_resource;
- else if (iomask & IORESOURCE_IO)
- parent = &ioport_resource;
- else
- return -EINVAL;
-
- /* Find a PCI parent if any */
- nd = node;
- pcidev = NULL;
- while(nd) {
- if (!pci_device_from_OF_node(nd, &pci_bus, &pci_devfn))
- pcidev = pci_find_slot(pci_bus, pci_devfn);
- if (pcidev) break;
- nd = nd->parent;
- }
- if (pcidev)
- parent = find_parent_pci_resource(pcidev, &node->addrs[index]);
- if (!parent) {
- printk(KERN_WARNING "release_OF_resource(%s), parent not found\n",
- node->name);
- return -ENODEV;
- }
-
- /* Find us in the parent and its childs */
- res = parent->child;
- start = node->addrs[index].address;
- end = start + node->addrs[index].size - 1;
- while (res) {
- if (res->start == start && res->end == end &&
- (res->flags & IORESOURCE_BUSY))
- break;
- if (res->start <= start && res->end >= end)
- res = res->child;
- else
- res = res->sibling;
- }
- if (!res)
- return -ENODEV;
-
- kfree(res->name);
- res->name = NULL;
- release_resource(res);
- kfree(res);
-
- return 0;
-}
-
-#if 0
-void
-print_properties(struct device_node *np)
-{
- struct property *pp;
- char *cp;
- int i, n;
-
- for (pp = np->properties; pp != 0; pp = pp->next) {
- printk(KERN_INFO "%s", pp->name);
- for (i = strlen(pp->name); i < 16; ++i)
- printk(" ");
- cp = (char *) pp->value;
- for (i = pp->length; i > 0; --i, ++cp)
- if ((i > 1 && (*cp < 0x20 || *cp > 0x7e))
- || (i == 1 && *cp != 0))
- break;
- if (i == 0 && pp->length > 1) {
- /* looks like a string */
- printk(" %s\n", (char *) pp->value);
- } else {
- /* dump it in hex */
- n = pp->length;
- if (n > 64)
- n = 64;
- if (pp->length % 4 == 0) {
- unsigned int *p = (unsigned int *) pp->value;
-
- n /= 4;
- for (i = 0; i < n; ++i) {
- if (i != 0 && (i % 4) == 0)
- printk("\n ");
- printk(" %08x", *p++);
- }
- } else {
- unsigned char *bp = pp->value;
-
- for (i = 0; i < n; ++i) {
- if (i != 0 && (i % 16) == 0)
- printk("\n ");
- printk(" %02x", *bp++);
- }
- }
- printk("\n");
- if (pp->length > 64)
- printk(" ... (length = %d)\n",
- pp->length);
- }
- }
-}
-#endif
-
-static DEFINE_SPINLOCK(rtas_lock);
-
-/* this can be called after setup -- Cort */
-int
-call_rtas(const char *service, int nargs, int nret,
- unsigned long *outputs, ...)
-{
- va_list list;
- int i;
- unsigned long s;
- struct device_node *rtas;
- int *tokp;
- union {
- unsigned long words[16];
- double align;
- } u;
-
- rtas = find_devices("rtas");
- if (rtas == NULL)
- return -1;
- tokp = (int *) get_property(rtas, service, NULL);
- if (tokp == NULL) {
- printk(KERN_ERR "No RTAS service called %s\n", service);
- return -1;
- }
- u.words[0] = *tokp;
- u.words[1] = nargs;
- u.words[2] = nret;
- va_start(list, outputs);
- for (i = 0; i < nargs; ++i)
- u.words[i+3] = va_arg(list, unsigned long);
- va_end(list);
-
- /*
- * RTAS doesn't use floating point.
- * Or at least, according to the CHRP spec we enter RTAS
- * with FP disabled, and it doesn't change the FP registers.
- * -- paulus.
- */
- spin_lock_irqsave(&rtas_lock, s);
- enter_rtas((void *)__pa(&u));
- spin_unlock_irqrestore(&rtas_lock, s);
-
- if (nret > 1 && outputs != NULL)
- for (i = 0; i < nret-1; ++i)
- outputs[i] = u.words[i+nargs+4];
- return u.words[nargs+3];
-}
diff --git a/arch/ppc/syslib/prom_init.c b/arch/ppc/syslib/prom_init.c
deleted file mode 100644
index df14422ae1c..00000000000
--- a/arch/ppc/syslib/prom_init.c
+++ /dev/null
@@ -1,1011 +0,0 @@
-/*
- * Note that prom_init() and anything called from prom_init()
- * may be running at an address that is different from the address
- * that it was linked at. References to static data items are
- * handled by compiling this file with -mrelocatable-lib.
- */
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/init.h>
-#include <linux/threads.h>
-#include <linux/spinlock.h>
-#include <linux/ioport.h>
-#include <linux/pci.h>
-#include <linux/slab.h>
-#include <linux/bitops.h>
-
-#include <asm/sections.h>
-#include <asm/prom.h>
-#include <asm/page.h>
-#include <asm/irq.h>
-#include <asm/io.h>
-#include <asm/smp.h>
-#include <asm/bootx.h>
-#include <asm/system.h>
-#include <asm/mmu.h>
-#include <asm/pgtable.h>
-#include <asm/bootinfo.h>
-#include <asm/btext.h>
-#include <asm/pci-bridge.h>
-#include <asm/open_pic.h>
-#include <asm/cacheflush.h>
-
-#ifdef CONFIG_LOGO_LINUX_CLUT224
-#include <linux/linux_logo.h>
-extern const struct linux_logo logo_linux_clut224;
-#endif
-
-/*
- * Properties whose value is longer than this get excluded from our
- * copy of the device tree. This way we don't waste space storing
- * things like "driver,AAPL,MacOS,PowerPC" properties. But this value
- * does need to be big enough to ensure that we don't lose things
- * like the interrupt-map property on a PCI-PCI bridge.
- */
-#define MAX_PROPERTY_LENGTH 4096
-
-#ifndef FB_MAX /* avoid pulling in all of the fb stuff */
-#define FB_MAX 8
-#endif
-
-#define ALIGNUL(x) (((x) + sizeof(unsigned long)-1) & -sizeof(unsigned long))
-
-typedef u32 prom_arg_t;
-
-struct prom_args {
- const char *service;
- int nargs;
- int nret;
- prom_arg_t args[10];
-};
-
-struct pci_address {
- unsigned a_hi;
- unsigned a_mid;
- unsigned a_lo;
-};
-
-struct pci_reg_property {
- struct pci_address addr;
- unsigned size_hi;
- unsigned size_lo;
-};
-
-struct pci_range {
- struct pci_address addr;
- unsigned phys;
- unsigned size_hi;
- unsigned size_lo;
-};
-
-struct isa_reg_property {
- unsigned space;
- unsigned address;
- unsigned size;
-};
-
-struct pci_intr_map {
- struct pci_address addr;
- unsigned dunno;
- phandle int_ctrler;
- unsigned intr;
-};
-
-static void prom_exit(void);
-static int call_prom(const char *service, int nargs, int nret, ...);
-static int call_prom_ret(const char *service, int nargs, int nret,
- prom_arg_t *rets, ...);
-static void prom_print_hex(unsigned int v);
-static int prom_set_color(ihandle ih, int i, int r, int g, int b);
-static int prom_next_node(phandle *nodep);
-static unsigned long check_display(unsigned long mem);
-static void setup_disp_fake_bi(ihandle dp);
-static unsigned long copy_device_tree(unsigned long mem_start,
- unsigned long mem_end);
-static unsigned long inspect_node(phandle node, struct device_node *dad,
- unsigned long mem_start, unsigned long mem_end,
- struct device_node ***allnextpp);
-static void prom_hold_cpus(unsigned long mem);
-static void prom_instantiate_rtas(void);
-static void * early_get_property(unsigned long base, unsigned long node,
- char *prop);
-
-prom_entry prom __initdata;
-ihandle prom_chosen __initdata;
-ihandle prom_stdout __initdata;
-
-static char *prom_display_paths[FB_MAX] __initdata;
-static phandle prom_display_nodes[FB_MAX] __initdata;
-static unsigned int prom_num_displays __initdata;
-static ihandle prom_disp_node __initdata;
-char *of_stdout_device __initdata;
-
-unsigned int rtas_data; /* physical pointer */
-unsigned int rtas_entry; /* physical pointer */
-unsigned int rtas_size;
-unsigned int old_rtas;
-
-boot_infos_t *boot_infos;
-char *bootpath;
-char *bootdevice;
-struct device_node *allnodes;
-
-extern char *klimit;
-
-static void __init
-prom_exit(void)
-{
- struct prom_args args;
-
- args.service = "exit";
- args.nargs = 0;
- args.nret = 0;
- prom(&args);
- for (;;) /* should never get here */
- ;
-}
-
-static int __init
-call_prom(const char *service, int nargs, int nret, ...)
-{
- va_list list;
- int i;
- struct prom_args prom_args;
-
- prom_args.service = service;
- prom_args.nargs = nargs;
- prom_args.nret = nret;
- va_start(list, nret);
- for (i = 0; i < nargs; ++i)
- prom_args.args[i] = va_arg(list, prom_arg_t);
- va_end(list);
- for (i = 0; i < nret; ++i)
- prom_args.args[i + nargs] = 0;
- prom(&prom_args);
- return prom_args.args[nargs];
-}
-
-static int __init
-call_prom_ret(const char *service, int nargs, int nret, prom_arg_t *rets, ...)
-{
- va_list list;
- int i;
- struct prom_args prom_args;
-
- prom_args.service = service;
- prom_args.nargs = nargs;
- prom_args.nret = nret;
- va_start(list, rets);
- for (i = 0; i < nargs; ++i)
- prom_args.args[i] = va_arg(list, int);
- va_end(list);
- for (i = 0; i < nret; ++i)
- prom_args.args[i + nargs] = 0;
- prom(&prom_args);
- for (i = 1; i < nret; ++i)
- rets[i-1] = prom_args.args[nargs + i];
- return prom_args.args[nargs];
-}
-
-void __init
-prom_print(const char *msg)
-{
- const char *p, *q;
-
- if (prom_stdout == 0)
- return;
-
- for (p = msg; *p != 0; p = q) {
- for (q = p; *q != 0 && *q != '\n'; ++q)
- ;
- if (q > p)
- call_prom("write", 3, 1, prom_stdout, p, q - p);
- if (*q != 0) {
- ++q;
- call_prom("write", 3, 1, prom_stdout, "\r\n", 2);
- }
- }
-}
-
-static void __init
-prom_print_hex(unsigned int v)
-{
- char buf[16];
- int i, c;
-
- for (i = 0; i < 8; ++i) {
- c = (v >> ((7-i)*4)) & 0xf;
- c += (c >= 10)? ('a' - 10): '0';
- buf[i] = c;
- }
- buf[i] = ' ';
- buf[i+1] = 0;
- prom_print(buf);
-}
-
-static int __init
-prom_set_color(ihandle ih, int i, int r, int g, int b)
-{
- return call_prom("call-method", 6, 1, "color!", ih, i, b, g, r);
-}
-
-static int __init
-prom_next_node(phandle *nodep)
-{
- phandle node;
-
- if ((node = *nodep) != 0
- && (*nodep = call_prom("child", 1, 1, node)) != 0)
- return 1;
- if ((*nodep = call_prom("peer", 1, 1, node)) != 0)
- return 1;
- for (;;) {
- if ((node = call_prom("parent", 1, 1, node)) == 0)
- return 0;
- if ((*nodep = call_prom("peer", 1, 1, node)) != 0)
- return 1;
- }
-}
-
-#ifdef CONFIG_POWER4
-/*
- * Set up a hash table with a set of entries in it to map the
- * first 64MB of RAM. This is used on 64-bit machines since
- * some of them don't have BATs.
- */
-
-static inline void make_pte(unsigned long htab, unsigned int hsize,
- unsigned int va, unsigned int pa, int mode)
-{
- unsigned int *pteg;
- unsigned int hash, i, vsid;
-
- vsid = ((va >> 28) * 0x111) << 12;
- hash = ((va ^ vsid) >> 5) & 0x7fff80;
- pteg = (unsigned int *)(htab + (hash & (hsize - 1)));
- for (i = 0; i < 8; ++i, pteg += 4) {
- if ((pteg[1] & 1) == 0) {
- pteg[1] = vsid | ((va >> 16) & 0xf80) | 1;
- pteg[3] = pa | mode;
- break;
- }
- }
-}
-
-extern unsigned long _SDR1;
-extern PTE *Hash;
-extern unsigned long Hash_size;
-
-static void __init
-prom_alloc_htab(void)
-{
- unsigned int hsize;
- unsigned long htab;
- unsigned int addr;
-
- /*
- * Because of OF bugs we can't use the "claim" client
- * interface to allocate memory for the hash table.
- * This code is only used on 64-bit PPCs, and the only
- * 64-bit PPCs at the moment are RS/6000s, and their
- * OF is based at 0xc00000 (the 12M point), so we just
- * arbitrarily use the 0x800000 - 0xc00000 region for the
- * hash table.
- * -- paulus.
- */
- hsize = 4 << 20; /* POWER4 has no BATs */
- htab = (8 << 20);
- call_prom("claim", 3, 1, htab, hsize, 0);
- Hash = (void *)(htab + KERNELBASE);
- Hash_size = hsize;
- _SDR1 = htab + __ilog2(hsize) - 18;
-
- /*
- * Put in PTEs for the first 64MB of RAM
- */
- memset((void *)htab, 0, hsize);
- for (addr = 0; addr < 0x4000000; addr += 0x1000)
- make_pte(htab, hsize, addr + KERNELBASE, addr,
- _PAGE_ACCESSED | _PAGE_COHERENT | PP_RWXX);
-#if 0 /* DEBUG stuff mapping the SCC */
- make_pte(htab, hsize, 0x80013000, 0x80013000,
- _PAGE_ACCESSED | _PAGE_NO_CACHE | _PAGE_GUARDED | PP_RWXX);
-#endif
-}
-#endif /* CONFIG_POWER4 */
-
-
-/*
- * If we have a display that we don't know how to drive,
- * we will want to try to execute OF's open method for it
- * later. However, OF will probably fall over if we do that
- * we've taken over the MMU.
- * So we check whether we will need to open the display,
- * and if so, open it now.
- */
-static unsigned long __init
-check_display(unsigned long mem)
-{
- phandle node;
- ihandle ih;
- int i, j;
- char type[16], *path;
- static unsigned char default_colors[] = {
- 0x00, 0x00, 0x00,
- 0x00, 0x00, 0xaa,
- 0x00, 0xaa, 0x00,
- 0x00, 0xaa, 0xaa,
- 0xaa, 0x00, 0x00,
- 0xaa, 0x00, 0xaa,
- 0xaa, 0xaa, 0x00,
- 0xaa, 0xaa, 0xaa,
- 0x55, 0x55, 0x55,
- 0x55, 0x55, 0xff,
- 0x55, 0xff, 0x55,
- 0x55, 0xff, 0xff,
- 0xff, 0x55, 0x55,
- 0xff, 0x55, 0xff,
- 0xff, 0xff, 0x55,
- 0xff, 0xff, 0xff
- };
- const unsigned char *clut;
-
- prom_disp_node = 0;
-
- for (node = 0; prom_next_node(&node); ) {
- type[0] = 0;
- call_prom("getprop", 4, 1, node, "device_type",
- type, sizeof(type));
- if (strcmp(type, "display") != 0)
- continue;
- /* It seems OF doesn't null-terminate the path :-( */
- path = (char *) mem;
- memset(path, 0, 256);
- if (call_prom("package-to-path", 3, 1, node, path, 255) < 0)
- continue;
-
- /*
- * If this display is the device that OF is using for stdout,
- * move it to the front of the list.
- */
- mem += strlen(path) + 1;
- i = prom_num_displays++;
- if (of_stdout_device != 0 && i > 0
- && strcmp(of_stdout_device, path) == 0) {
- for (; i > 0; --i) {
- prom_display_paths[i]
- = prom_display_paths[i-1];
- prom_display_nodes[i]
- = prom_display_nodes[i-1];
- }
- }
- prom_display_paths[i] = path;
- prom_display_nodes[i] = node;
- if (i == 0)
- prom_disp_node = node;
- if (prom_num_displays >= FB_MAX)
- break;
- }
-
- for (j=0; j<prom_num_displays; j++) {
- path = prom_display_paths[j];
- node = prom_display_nodes[j];
- prom_print("opening display ");
- prom_print(path);
- ih = call_prom("open", 1, 1, path);
- if (ih == 0 || ih == (ihandle) -1) {
- prom_print("... failed\n");
- for (i=j+1; i<prom_num_displays; i++) {
- prom_display_paths[i-1] = prom_display_paths[i];
- prom_display_nodes[i-1] = prom_display_nodes[i];
- }
- if (--prom_num_displays > 0) {
- prom_disp_node = prom_display_nodes[j];
- j--;
- } else
- prom_disp_node = 0;
- continue;
- } else {
- prom_print("... ok\n");
- call_prom("setprop", 4, 1, node, "linux,opened", 0, 0);
-
- /*
- * Setup a usable color table when the appropriate
- * method is available.
- * Should update this to use set-colors.
- */
- clut = default_colors;
- for (i = 0; i < 32; i++, clut += 3)
- if (prom_set_color(ih, i, clut[0], clut[1],
- clut[2]) != 0)
- break;
-
-#ifdef CONFIG_LOGO_LINUX_CLUT224
- clut = PTRRELOC(logo_linux_clut224.clut);
- for (i = 0; i < logo_linux_clut224.clutsize;
- i++, clut += 3)
- if (prom_set_color(ih, i + 32, clut[0],
- clut[1], clut[2]) != 0)
- break;
-#endif /* CONFIG_LOGO_LINUX_CLUT224 */
- }
- }
-
- if (prom_stdout) {
- phandle p;
- p = call_prom("instance-to-package", 1, 1, prom_stdout);
- if (p && p != -1) {
- type[0] = 0;
- call_prom("getprop", 4, 1, p, "device_type",
- type, sizeof(type));
- if (strcmp(type, "display") == 0)
- call_prom("setprop", 4, 1, p, "linux,boot-display",
- 0, 0);
- }
- }
-
- return ALIGNUL(mem);
-}
-
-/* This function will enable the early boot text when doing OF booting. This
- * way, xmon output should work too
- */
-static void __init
-setup_disp_fake_bi(ihandle dp)
-{
-#ifdef CONFIG_BOOTX_TEXT
- int width = 640, height = 480, depth = 8, pitch;
- unsigned address;
- struct pci_reg_property addrs[8];
- int i, naddrs;
- char name[32];
- char *getprop = "getprop";
-
- prom_print("Initializing fake screen: ");
-
- memset(name, 0, sizeof(name));
- call_prom(getprop, 4, 1, dp, "name", name, sizeof(name));
- name[sizeof(name)-1] = 0;
- prom_print(name);
- prom_print("\n");
- call_prom(getprop, 4, 1, dp, "width", &width, sizeof(width));
- call_prom(getprop, 4, 1, dp, "height", &height, sizeof(height));
- call_prom(getprop, 4, 1, dp, "depth", &depth, sizeof(depth));
- pitch = width * ((depth + 7) / 8);
- call_prom(getprop, 4, 1, dp, "linebytes",
- &pitch, sizeof(pitch));
- if (pitch == 1)
- pitch = 0x1000; /* for strange IBM display */
- address = 0;
- call_prom(getprop, 4, 1, dp, "address",
- &address, sizeof(address));
- if (address == 0) {
- /* look for an assigned address with a size of >= 1MB */
- naddrs = call_prom(getprop, 4, 1, dp, "assigned-addresses",
- addrs, sizeof(addrs));
- naddrs /= sizeof(struct pci_reg_property);
- for (i = 0; i < naddrs; ++i) {
- if (addrs[i].size_lo >= (1 << 20)) {
- address = addrs[i].addr.a_lo;
- /* use the BE aperture if possible */
- if (addrs[i].size_lo >= (16 << 20))
- address += (8 << 20);
- break;
- }
- }
- if (address == 0) {
- prom_print("Failed to get address\n");
- return;
- }
- }
- /* kludge for valkyrie */
- if (strcmp(name, "valkyrie") == 0)
- address += 0x1000;
-
-#ifdef CONFIG_POWER4
-#if CONFIG_TASK_SIZE > 0x80000000
-#error CONFIG_TASK_SIZE cannot be above 0x80000000 with BOOTX_TEXT on G5
-#endif
- {
- extern boot_infos_t disp_bi;
- unsigned long va, pa, i, offset;
- va = 0x90000000;
- pa = address & 0xfffff000ul;
- offset = address & 0x00000fff;
-
- for (i=0; i<0x4000; i++) {
- make_pte((unsigned long)Hash - KERNELBASE, Hash_size, va, pa,
- _PAGE_ACCESSED | _PAGE_NO_CACHE |
- _PAGE_GUARDED | PP_RWXX);
- va += 0x1000;
- pa += 0x1000;
- }
- btext_setup_display(width, height, depth, pitch, 0x90000000 | offset);
- disp_bi.dispDeviceBase = (u8 *)address;
- }
-#else /* CONFIG_POWER4 */
- btext_setup_display(width, height, depth, pitch, address);
- btext_prepare_BAT();
-#endif /* CONFIG_POWER4 */
-#endif /* CONFIG_BOOTX_TEXT */
-}
-
-/*
- * Make a copy of the device tree from the PROM.
- */
-static unsigned long __init
-copy_device_tree(unsigned long mem_start, unsigned long mem_end)
-{
- phandle root;
- unsigned long new_start;
- struct device_node **allnextp;
-
- root = call_prom("peer", 1, 1, (phandle)0);
- if (root == (phandle)0) {
- prom_print("couldn't get device tree root\n");
- prom_exit();
- }
- allnextp = &allnodes;
- mem_start = ALIGNUL(mem_start);
- new_start = inspect_node(root, NULL, mem_start, mem_end, &allnextp);
- *allnextp = NULL;
- return new_start;
-}
-
-static unsigned long __init
-inspect_node(phandle node, struct device_node *dad,
- unsigned long mem_start, unsigned long mem_end,
- struct device_node ***allnextpp)
-{
- int l;
- phandle child;
- struct device_node *np;
- struct property *pp, **prev_propp;
- char *prev_name, *namep;
- unsigned char *valp;
-
- np = (struct device_node *) mem_start;
- mem_start += sizeof(struct device_node);
- memset(np, 0, sizeof(*np));
- np->node = node;
- **allnextpp = PTRUNRELOC(np);
- *allnextpp = &np->allnext;
- if (dad != 0) {
- np->parent = PTRUNRELOC(dad);
- /* we temporarily use the `next' field as `last_child'. */
- if (dad->next == 0)
- dad->child = PTRUNRELOC(np);
- else
- dad->next->sibling = PTRUNRELOC(np);
- dad->next = np;
- }
-
- /* get and store all properties */
- prev_propp = &np->properties;
- prev_name = "";
- for (;;) {
- pp = (struct property *) mem_start;
- namep = (char *) (pp + 1);
- pp->name = PTRUNRELOC(namep);
- if (call_prom("nextprop", 3, 1, node, prev_name, namep) <= 0)
- break;
- mem_start = ALIGNUL((unsigned long)namep + strlen(namep) + 1);
- prev_name = namep;
- valp = (unsigned char *) mem_start;
- pp->value = PTRUNRELOC(valp);
- pp->length = call_prom("getprop", 4, 1, node, namep,
- valp, mem_end - mem_start);
- if (pp->length < 0)
- continue;
-#ifdef MAX_PROPERTY_LENGTH
- if (pp->length > MAX_PROPERTY_LENGTH)
- continue; /* ignore this property */
-#endif
- mem_start = ALIGNUL(mem_start + pp->length);
- *prev_propp = PTRUNRELOC(pp);
- prev_propp = &pp->next;
- }
- if (np->node != 0) {
- /* Add a "linux,phandle" property" */
- pp = (struct property *) mem_start;
- *prev_propp = PTRUNRELOC(pp);
- prev_propp = &pp->next;
- namep = (char *) (pp + 1);
- pp->name = PTRUNRELOC(namep);
- strcpy(namep, "linux,phandle");
- mem_start = ALIGNUL((unsigned long)namep + strlen(namep) + 1);
- pp->value = (unsigned char *) PTRUNRELOC(&np->node);
- pp->length = sizeof(np->node);
- }
- *prev_propp = NULL;
-
- /* get the node's full name */
- l = call_prom("package-to-path", 3, 1, node,
- mem_start, mem_end - mem_start);
- if (l >= 0) {
- char *p, *ep;
-
- np->full_name = PTRUNRELOC((char *) mem_start);
- *(char *)(mem_start + l) = 0;
- /* Fixup an Apple bug where they have bogus \0 chars in the
- * middle of the path in some properties
- */
- for (p = (char *)mem_start, ep = p + l; p < ep; p++)
- if ((*p) == '\0') {
- memmove(p, p+1, ep - p);
- ep--;
- }
- mem_start = ALIGNUL(mem_start + l + 1);
- }
-
- /* do all our children */
- child = call_prom("child", 1, 1, node);
- while (child != 0) {
- mem_start = inspect_node(child, np, mem_start, mem_end,
- allnextpp);
- child = call_prom("peer", 1, 1, child);
- }
-
- return mem_start;
-}
-
-unsigned long smp_chrp_cpu_nr __initdata = 0;
-
-/*
- * With CHRP SMP we need to use the OF to start the other
- * processors so we can't wait until smp_boot_cpus (the OF is
- * trashed by then) so we have to put the processors into
- * a holding pattern controlled by the kernel (not OF) before
- * we destroy the OF.
- *
- * This uses a chunk of high memory, puts some holding pattern
- * code there and sends the other processors off to there until
- * smp_boot_cpus tells them to do something. We do that by using
- * physical address 0x0. The holding pattern checks that address
- * until its cpu # is there, when it is that cpu jumps to
- * __secondary_start(). smp_boot_cpus() takes care of setting those
- * values.
- *
- * We also use physical address 0x4 here to tell when a cpu
- * is in its holding pattern code.
- *
- * -- Cort
- *
- * Note that we have to do this if we have more than one CPU,
- * even if this is a UP kernel. Otherwise when we trash OF
- * the other CPUs will start executing some random instructions
- * and crash the system. -- paulus
- */
-static void __init
-prom_hold_cpus(unsigned long mem)
-{
- extern void __secondary_hold(void);
- unsigned long i;
- int cpu;
- phandle node;
- char type[16], *path;
- unsigned int reg;
-
- /*
- * XXX: hack to make sure we're chrp, assume that if we're
- * chrp we have a device_type property -- Cort
- */
- node = call_prom("finddevice", 1, 1, "/");
- if (call_prom("getprop", 4, 1, node,
- "device_type", type, sizeof(type)) <= 0)
- return;
-
- /* copy the holding pattern code to someplace safe (0) */
- /* the holding pattern is now within the first 0x100
- bytes of the kernel image -- paulus */
- memcpy((void *)0, _stext, 0x100);
- flush_icache_range(0, 0x100);
-
- /* look for cpus */
- *(unsigned long *)(0x0) = 0;
- asm volatile("dcbf 0,%0": : "r" (0) : "memory");
- for (node = 0; prom_next_node(&node); ) {
- type[0] = 0;
- call_prom("getprop", 4, 1, node, "device_type",
- type, sizeof(type));
- if (strcmp(type, "cpu") != 0)
- continue;
- path = (char *) mem;
- memset(path, 0, 256);
- if (call_prom("package-to-path", 3, 1, node, path, 255) < 0)
- continue;
- reg = -1;
- call_prom("getprop", 4, 1, node, "reg", &reg, sizeof(reg));
- cpu = smp_chrp_cpu_nr++;
-#ifdef CONFIG_SMP
- smp_hw_index[cpu] = reg;
-#endif /* CONFIG_SMP */
- /* XXX: hack - don't start cpu 0, this cpu -- Cort */
- if (cpu == 0)
- continue;
- prom_print("starting cpu ");
- prom_print(path);
- *(ulong *)(0x4) = 0;
- call_prom("start-cpu", 3, 0, node,
- (char *)__secondary_hold - _stext, cpu);
- prom_print("...");
- for ( i = 0 ; (i < 10000) && (*(ulong *)(0x4) == 0); i++ )
- ;
- if (*(ulong *)(0x4) == cpu)
- prom_print("ok\n");
- else {
- prom_print("failed: ");
- prom_print_hex(*(ulong *)0x4);
- prom_print("\n");
- }
- }
-}
-
-static void __init
-prom_instantiate_rtas(void)
-{
- ihandle prom_rtas;
- prom_arg_t result;
-
- prom_rtas = call_prom("finddevice", 1, 1, "/rtas");
- if (prom_rtas == -1)
- return;
-
- rtas_size = 0;
- call_prom("getprop", 4, 1, prom_rtas,
- "rtas-size", &rtas_size, sizeof(rtas_size));
- prom_print("instantiating rtas");
- if (rtas_size == 0) {
- rtas_data = 0;
- } else {
- /*
- * Ask OF for some space for RTAS.
- * Actually OF has bugs so we just arbitrarily
- * use memory at the 6MB point.
- */
- rtas_data = 6 << 20;
- prom_print(" at ");
- prom_print_hex(rtas_data);
- }
-
- prom_rtas = call_prom("open", 1, 1, "/rtas");
- prom_print("...");
- rtas_entry = 0;
- if (call_prom_ret("call-method", 3, 2, &result,
- "instantiate-rtas", prom_rtas, rtas_data) == 0)
- rtas_entry = result;
- if ((rtas_entry == -1) || (rtas_entry == 0))
- prom_print(" failed\n");
- else
- prom_print(" done\n");
-}
-
-/*
- * We enter here early on, when the Open Firmware prom is still
- * handling exceptions and the MMU hash table for us.
- */
-unsigned long __init
-prom_init(int r3, int r4, prom_entry pp)
-{
- unsigned long mem;
- ihandle prom_mmu;
- unsigned long offset = reloc_offset();
- int i, l;
- char *p, *d;
- unsigned long phys;
- prom_arg_t result[3];
- char model[32];
- phandle node;
- int rc;
-
- /* Default */
- phys = (unsigned long) &_stext;
-
- /* First get a handle for the stdout device */
- prom = pp;
- prom_chosen = call_prom("finddevice", 1, 1, "/chosen");
- if (prom_chosen == -1)
- prom_exit();
- if (call_prom("getprop", 4, 1, prom_chosen, "stdout",
- &prom_stdout, sizeof(prom_stdout)) <= 0)
- prom_exit();
-
- /* Get the full OF pathname of the stdout device */
- mem = (unsigned long) klimit + offset;
- p = (char *) mem;
- memset(p, 0, 256);
- call_prom("instance-to-path", 3, 1, prom_stdout, p, 255);
- of_stdout_device = p;
- mem += strlen(p) + 1;
-
- /* Get the boot device and translate it to a full OF pathname. */
- p = (char *) mem;
- l = call_prom("getprop", 4, 1, prom_chosen, "bootpath", p, 1<<20);
- if (l > 0) {
- p[l] = 0; /* should already be null-terminated */
- bootpath = PTRUNRELOC(p);
- mem += l + 1;
- d = (char *) mem;
- *d = 0;
- call_prom("canon", 3, 1, p, d, 1<<20);
- bootdevice = PTRUNRELOC(d);
- mem = ALIGNUL(mem + strlen(d) + 1);
- }
-
- prom_instantiate_rtas();
-
-#ifdef CONFIG_POWER4
- /*
- * Find out how much memory we have and allocate a
- * suitably-sized hash table.
- */
- prom_alloc_htab();
-#endif
- mem = check_display(mem);
-
- prom_print("copying OF device tree...");
- mem = copy_device_tree(mem, mem + (1<<20));
- prom_print("done\n");
-
- prom_hold_cpus(mem);
-
- klimit = (char *) (mem - offset);
-
- node = call_prom("finddevice", 1, 1, "/");
- rc = call_prom("getprop", 4, 1, node, "model", model, sizeof(model));
- if (rc > 0 && !strncmp (model, "Pegasos", 7)
- && strncmp (model, "Pegasos2", 8)) {
- /* Pegasos 1 has a broken translate method in the OF,
- * and furthermore the BATs are mapped 1:1 so the phys
- * address calculated above is correct, so let's use
- * it directly.
- */
- } else if (offset == 0) {
- /* If we are already running at 0xc0000000, we assume we were
- * loaded by an OF bootloader which did set a BAT for us.
- * This breaks OF translate so we force phys to be 0.
- */
- prom_print("(already at 0xc0000000) phys=0\n");
- phys = 0;
- } else if (call_prom("getprop", 4, 1, prom_chosen, "mmu",
- &prom_mmu, sizeof(prom_mmu)) <= 0) {
- prom_print(" no MMU found\n");
- } else if (call_prom_ret("call-method", 4, 4, result, "translate",
- prom_mmu, &_stext, 1) != 0) {
- prom_print(" (translate failed)\n");
- } else {
- /* We assume the phys. address size is 3 cells */
- phys = result[2];
- }
-
- if (prom_disp_node != 0)
- setup_disp_fake_bi(prom_disp_node);
-
- /* Use quiesce call to get OF to shut down any devices it's using */
- prom_print("Calling quiesce ...\n");
- call_prom("quiesce", 0, 0);
-
- /* Relocate various pointers which will be used once the
- kernel is running at the address it was linked at. */
- for (i = 0; i < prom_num_displays; ++i)
- prom_display_paths[i] = PTRUNRELOC(prom_display_paths[i]);
-
-#ifdef CONFIG_SERIAL_CORE_CONSOLE
- /* Relocate the of stdout for console autodetection */
- of_stdout_device = PTRUNRELOC(of_stdout_device);
-#endif
-
- prom_print("returning 0x");
- prom_print_hex(phys);
- prom_print("from prom_init\n");
- prom_stdout = 0;
-
- return phys;
-}
-
-/*
- * early_get_property is used to access the device tree image prepared
- * by BootX very early on, before the pointers in it have been relocated.
- */
-static void * __init
-early_get_property(unsigned long base, unsigned long node, char *prop)
-{
- struct device_node *np = (struct device_node *)(base + node);
- struct property *pp;
-
- for (pp = np->properties; pp != 0; pp = pp->next) {
- pp = (struct property *) (base + (unsigned long)pp);
- if (strcmp((char *)((unsigned long)pp->name + base),
- prop) == 0) {
- return (void *)((unsigned long)pp->value + base);
- }
- }
- return NULL;
-}
-
-/* Is boot-info compatible ? */
-#define BOOT_INFO_IS_COMPATIBLE(bi) ((bi)->compatible_version <= BOOT_INFO_VERSION)
-#define BOOT_INFO_IS_V2_COMPATIBLE(bi) ((bi)->version >= 2)
-#define BOOT_INFO_IS_V4_COMPATIBLE(bi) ((bi)->version >= 4)
-
-void __init
-bootx_init(unsigned long r4, unsigned long phys)
-{
- boot_infos_t *bi = (boot_infos_t *) r4;
- unsigned long space;
- unsigned long ptr, x;
- char *model;
-
- boot_infos = PTRUNRELOC(bi);
- if (!BOOT_INFO_IS_V2_COMPATIBLE(bi))
- bi->logicalDisplayBase = NULL;
-
-#ifdef CONFIG_BOOTX_TEXT
- btext_init(bi);
-
- /*
- * Test if boot-info is compatible. Done only in config
- * CONFIG_BOOTX_TEXT since there is nothing much we can do
- * with an incompatible version, except display a message
- * and eventually hang the processor...
- *
- * I'll try to keep enough of boot-info compatible in the
- * future to always allow display of this message;
- */
- if (!BOOT_INFO_IS_COMPATIBLE(bi)) {
- btext_drawstring(" !!! WARNING - Incompatible version of BootX !!!\n\n\n");
- btext_flushscreen();
- }
-#endif /* CONFIG_BOOTX_TEXT */
-
- /* New BootX enters kernel with MMU off, i/os are not allowed
- here. This hack will have been done by the boostrap anyway.
- */
- if (bi->version < 4) {
- /*
- * XXX If this is an iMac, turn off the USB controller.
- */
- model = (char *) early_get_property
- (r4 + bi->deviceTreeOffset, 4, "model");
- if (model
- && (strcmp(model, "iMac,1") == 0
- || strcmp(model, "PowerMac1,1") == 0)) {
- out_le32((unsigned *)0x80880008, 1); /* XXX */
- }
- }
-
- /* Move klimit to enclose device tree, args, ramdisk, etc... */
- if (bi->version < 5) {
- space = bi->deviceTreeOffset + bi->deviceTreeSize;
- if (bi->ramDisk)
- space = bi->ramDisk + bi->ramDiskSize;
- } else
- space = bi->totalParamsSize;
- klimit = PTRUNRELOC((char *) bi + space);
-
- /* New BootX will have flushed all TLBs and enters kernel with
- MMU switched OFF, so this should not be useful anymore.
- */
- if (bi->version < 4) {
- /*
- * Touch each page to make sure the PTEs for them
- * are in the hash table - the aim is to try to avoid
- * getting DSI exceptions while copying the kernel image.
- */
- for (ptr = ((unsigned long) &_stext) & PAGE_MASK;
- ptr < (unsigned long)bi + space; ptr += PAGE_SIZE)
- x = *(volatile unsigned long *)ptr;
- }
-
-#ifdef CONFIG_BOOTX_TEXT
- /*
- * Note that after we call btext_prepare_BAT, we can't do
- * prom_draw*, flushscreen or clearscreen until we turn the MMU
- * on, since btext_prepare_BAT sets disp_bi.logicalDisplayBase
- * to a virtual address.
- */
- btext_prepare_BAT();
-#endif
-}