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Diffstat (limited to 'arch/powerpc/kernel/setup-common.c')
-rw-r--r--arch/powerpc/kernel/setup-common.c32
1 files changed, 18 insertions, 14 deletions
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 499c3861074f..0af3fc1bdcc9 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -304,19 +304,21 @@ struct seq_operations cpuinfo_op = {
void __init check_for_initrd(void)
{
#ifdef CONFIG_BLK_DEV_INITRD
- unsigned long *prop;
+ const unsigned int *prop;
+ int len;
DBG(" -> check_for_initrd()\n");
if (of_chosen) {
- prop = (unsigned long *)get_property(of_chosen,
- "linux,initrd-start", NULL);
+ prop = get_property(of_chosen, "linux,initrd-start", &len);
if (prop != NULL) {
- initrd_start = (unsigned long)__va(*prop);
- prop = (unsigned long *)get_property(of_chosen,
- "linux,initrd-end", NULL);
+ initrd_start = (unsigned long)
+ __va(of_read_ulong(prop, len / 4));
+ prop = get_property(of_chosen,
+ "linux,initrd-end", &len);
if (prop != NULL) {
- initrd_end = (unsigned long)__va(*prop);
+ initrd_end = (unsigned long)
+ __va(of_read_ulong(prop, len / 4));
initrd_below_start_ok = 1;
} else
initrd_start = 0;
@@ -366,15 +368,14 @@ void __init smp_setup_cpu_maps(void)
int cpu = 0;
while ((dn = of_find_node_by_type(dn, "cpu")) && cpu < NR_CPUS) {
- int *intserv;
+ const int *intserv;
int j, len = sizeof(u32), nthreads = 1;
- intserv = (int *)get_property(dn, "ibm,ppc-interrupt-server#s",
- &len);
+ intserv = get_property(dn, "ibm,ppc-interrupt-server#s", &len);
if (intserv)
nthreads = len / sizeof(int);
else {
- intserv = (int *) get_property(dn, "reg", NULL);
+ intserv = get_property(dn, "reg", NULL);
if (!intserv)
intserv = &cpu; /* assume logical == phys */
}
@@ -395,13 +396,12 @@ void __init smp_setup_cpu_maps(void)
if (machine_is(pseries) && firmware_has_feature(FW_FEATURE_LPAR) &&
(dn = of_find_node_by_path("/rtas"))) {
int num_addr_cell, num_size_cell, maxcpus;
- unsigned int *ireg;
+ const unsigned int *ireg;
num_addr_cell = prom_n_addr_cells(dn);
num_size_cell = prom_n_size_cells(dn);
- ireg = (unsigned int *)
- get_property(dn, "ibm,lrdr-capacity", NULL);
+ ireg = get_property(dn, "ibm,lrdr-capacity", NULL);
if (!ireg)
goto out;
@@ -444,6 +444,8 @@ void __init smp_setup_cpu_maps(void)
int __initdata do_early_xmon;
#ifdef CONFIG_XMON
+extern int xmon_no_auto_backtrace;
+
static int __init early_xmon(char *p)
{
/* ensure xmon is enabled */
@@ -452,6 +454,8 @@ static int __init early_xmon(char *p)
xmon_init(1);
if (strncmp(p, "off", 3) == 0)
xmon_init(0);
+ if (strncmp(p, "nobt", 4) == 0)
+ xmon_no_auto_backtrace = 1;
if (strncmp(p, "early", 5) != 0)
return 0;
}