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[SPARC64]: Probe for power device on ISA bus too. 

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2005-10-06 20:43:54 -07:00
parent edb4a3534a
commit 2256c13b99
1 changed files with 51 additions and 13 deletions
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64
arch/sparc64/kernel/power.c
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@ -17,6 +17,7 @@
#include <asm/system.h>
#include <asm/ebus.h>
#include <asm/isa.h>
#include <asm/auxio.h>
#include <linux/unistd.h>
@ -100,46 +101,83 @@ again:
return 0;
}
static int __init has_button_interrupt(struct linux_ebus_device *edev)
static int __init has_button_interrupt(unsigned int irq, int prom_node)
{
if (edev->irqs[0] == PCI_IRQ_NONE)
if (irq == PCI_IRQ_NONE)
return 0;
if (!prom_node_has_property(edev->prom_node, "button"))
if (!prom_node_has_property(prom_node, "button"))
return 0;
return 1;
}
void __init power_init(void)
static int __init power_probe_ebus(struct resource **resp, unsigned int *irq_p, int *prom_node_p)
{
struct linux_ebus *ebus;
struct linux_ebus_device *edev;
for_each_ebus(ebus) {
for_each_ebusdev(edev, ebus) {
if (!strcmp(edev->prom_name, "power")) {
*resp = &edev->resource[0];
*irq_p = edev->irqs[0];
*prom_node_p = edev->prom_node;
return 0;
}
}
}
return -ENODEV;
}
static int __init power_probe_isa(struct resource **resp, unsigned int *irq_p, int *prom_node_p)
{
struct sparc_isa_bridge *isa_bus;
struct sparc_isa_device *isa_dev;
for_each_isa(isa_bus) {
for_each_isadev(isa_dev, isa_bus) {
if (!strcmp(isa_dev->prom_name, "power")) {
*resp = &isa_dev->resource;
*irq_p = isa_dev->irq;
*prom_node_p = isa_dev->prom_node;
return 0;
}
}
}
return -ENODEV;
}
void __init power_init(void)
{
struct resource *res = NULL;
unsigned int irq;
int prom_node;
static int invoked;
if (invoked)
return;
invoked = 1;
for_each_ebus(ebus) {
for_each_ebusdev(edev, ebus) {
if (!strcmp(edev->prom_name, "power"))
goto found;
}
}
if (!power_probe_ebus(&res, &irq, &prom_node))
goto found;
if (!power_probe_isa(&res, &irq, &prom_node))
goto found;
return;
found:
power_reg = ioremap(edev->resource[0].start, 0x4);
power_reg = ioremap(res->start, 0x4);
printk("power: Control reg at %p ... ", power_reg);
poweroff_method = machine_halt; /* able to use the standard halt */
if (has_button_interrupt(edev)) {
if (has_button_interrupt(irq, prom_node)) {
if (kernel_thread(powerd, NULL, CLONE_FS) < 0) {
printk("Failed to start power daemon.\n");
return;
}
printk("powerd running.\n");
if (request_irq(edev->irqs[0],
if (request_irq(irq,
power_handler, SA_SHIRQ, "power", NULL) < 0)
printk("power: Error, cannot register IRQ handler.\n");
} else {