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Diffstat (limited to 'arch/powerpc/platforms/maple/setup.c')
-rw-r--r--arch/powerpc/platforms/maple/setup.c85
1 files changed, 50 insertions, 35 deletions
diff --git a/arch/powerpc/platforms/maple/setup.c b/arch/powerpc/platforms/maple/setup.c
index a1cb4d23672..ec5c1e10c40 100644
--- a/arch/powerpc/platforms/maple/setup.c
+++ b/arch/powerpc/platforms/maple/setup.c
@@ -71,38 +71,60 @@
#define DBG(fmt...)
#endif
+static unsigned long maple_find_nvram_base(void)
+{
+ struct device_node *rtcs;
+ unsigned long result = 0;
+
+ /* find NVRAM device */
+ rtcs = of_find_compatible_node(NULL, "nvram", "AMD8111");
+ if (rtcs) {
+ struct resource r;
+ if (of_address_to_resource(rtcs, 0, &r)) {
+ printk(KERN_EMERG "Maple: Unable to translate NVRAM"
+ " address\n");
+ goto bail;
+ }
+ if (!(r.flags & IORESOURCE_IO)) {
+ printk(KERN_EMERG "Maple: NVRAM address isn't PIO!\n");
+ goto bail;
+ }
+ result = r.start;
+ } else
+ printk(KERN_EMERG "Maple: Unable to find NVRAM\n");
+ bail:
+ of_node_put(rtcs);
+ return result;
+}
+
static void maple_restart(char *cmd)
{
unsigned int maple_nvram_base;
unsigned int maple_nvram_offset;
unsigned int maple_nvram_command;
- struct device_node *rtcs;
+ struct device_node *sp;
- /* find NVRAM device */
- rtcs = find_compatible_devices("nvram", "AMD8111");
- if (rtcs && rtcs->addrs) {
- maple_nvram_base = rtcs->addrs[0].address;
- } else {
- printk(KERN_EMERG "Maple: Unable to find NVRAM\n");
- printk(KERN_EMERG "Maple: Manual Restart Required\n");
- return;
- }
+ maple_nvram_base = maple_find_nvram_base();
+ if (maple_nvram_base == 0)
+ goto fail;
/* find service processor device */
- rtcs = find_devices("service-processor");
- if (!rtcs) {
+ sp = of_find_node_by_name(NULL, "service-processor");
+ if (!sp) {
printk(KERN_EMERG "Maple: Unable to find Service Processor\n");
- printk(KERN_EMERG "Maple: Manual Restart Required\n");
- return;
+ goto fail;
}
- maple_nvram_offset = *(unsigned int*) get_property(rtcs,
+ maple_nvram_offset = *(unsigned int*) get_property(sp,
"restart-addr", NULL);
- maple_nvram_command = *(unsigned int*) get_property(rtcs,
+ maple_nvram_command = *(unsigned int*) get_property(sp,
"restart-value", NULL);
+ of_node_put(sp);
/* send command */
outb_p(maple_nvram_command, maple_nvram_base + maple_nvram_offset);
for (;;) ;
+ fail:
+ printk(KERN_EMERG "Maple: Manual Restart Required\n");
}
static void maple_power_off(void)
@@ -110,33 +132,29 @@ static void maple_power_off(void)
unsigned int maple_nvram_base;
unsigned int maple_nvram_offset;
unsigned int maple_nvram_command;
- struct device_node *rtcs;
+ struct device_node *sp;
- /* find NVRAM device */
- rtcs = find_compatible_devices("nvram", "AMD8111");
- if (rtcs && rtcs->addrs) {
- maple_nvram_base = rtcs->addrs[0].address;
- } else {
- printk(KERN_EMERG "Maple: Unable to find NVRAM\n");
- printk(KERN_EMERG "Maple: Manual Power-Down Required\n");
- return;
- }
+ maple_nvram_base = maple_find_nvram_base();
+ if (maple_nvram_base == 0)
+ goto fail;
/* find service processor device */
- rtcs = find_devices("service-processor");
- if (!rtcs) {
+ sp = of_find_node_by_name(NULL, "service-processor");
+ if (!sp) {
printk(KERN_EMERG "Maple: Unable to find Service Processor\n");
- printk(KERN_EMERG "Maple: Manual Power-Down Required\n");
- return;
+ goto fail;
}
- maple_nvram_offset = *(unsigned int*) get_property(rtcs,
+ maple_nvram_offset = *(unsigned int*) get_property(sp,
"power-off-addr", NULL);
- maple_nvram_command = *(unsigned int*) get_property(rtcs,
+ maple_nvram_command = *(unsigned int*) get_property(sp,
"power-off-value", NULL);
+ of_node_put(sp);
/* send command */
outb_p(maple_nvram_command, maple_nvram_base + maple_nvram_offset);
for (;;) ;
+ fail:
+ printk(KERN_EMERG "Maple: Manual Power-Down Required\n");
}
static void maple_halt(void)
@@ -179,9 +197,6 @@ void __init maple_setup_arch(void)
*/
static void __init maple_init_early(void)
{
- unsigned int default_speed;
- u64 physport;
-
DBG(" -> maple_init_early\n");
/* Initialize hash table, from now on, we can take hash faults