diff options
Diffstat (limited to 'arch/sparc64/kernel/power.c')
-rw-r--r-- | arch/sparc64/kernel/power.c | 64 |
1 files changed, 51 insertions, 13 deletions
diff --git a/arch/sparc64/kernel/power.c b/arch/sparc64/kernel/power.c index 946cee0257ea..9e8362ea3104 100644 --- a/arch/sparc64/kernel/power.c +++ b/arch/sparc64/kernel/power.c | |||
@@ -17,6 +17,7 @@ | |||
17 | 17 | ||
18 | #include <asm/system.h> | 18 | #include <asm/system.h> |
19 | #include <asm/ebus.h> | 19 | #include <asm/ebus.h> |
20 | #include <asm/isa.h> | ||
20 | #include <asm/auxio.h> | 21 | #include <asm/auxio.h> |
21 | 22 | ||
22 | #include <linux/unistd.h> | 23 | #include <linux/unistd.h> |
@@ -100,46 +101,83 @@ again: | |||
100 | return 0; | 101 | return 0; |
101 | } | 102 | } |
102 | 103 | ||
103 | static int __init has_button_interrupt(struct linux_ebus_device *edev) | 104 | static int __init has_button_interrupt(unsigned int irq, int prom_node) |
104 | { | 105 | { |
105 | if (edev->irqs[0] == PCI_IRQ_NONE) | 106 | if (irq == PCI_IRQ_NONE) |
106 | return 0; | 107 | return 0; |
107 | if (!prom_node_has_property(edev->prom_node, "button")) | 108 | if (!prom_node_has_property(prom_node, "button")) |
108 | return 0; | 109 | return 0; |
109 | 110 | ||
110 | return 1; | 111 | return 1; |
111 | } | 112 | } |
112 | 113 | ||
113 | void __init power_init(void) | 114 | static int __init power_probe_ebus(struct resource **resp, unsigned int *irq_p, int *prom_node_p) |
114 | { | 115 | { |
115 | struct linux_ebus *ebus; | 116 | struct linux_ebus *ebus; |
116 | struct linux_ebus_device *edev; | 117 | struct linux_ebus_device *edev; |
118 | |||
119 | for_each_ebus(ebus) { | ||
120 | for_each_ebusdev(edev, ebus) { | ||
121 | if (!strcmp(edev->prom_name, "power")) { | ||
122 | *resp = &edev->resource[0]; | ||
123 | *irq_p = edev->irqs[0]; | ||
124 | *prom_node_p = edev->prom_node; | ||
125 | return 0; | ||
126 | } | ||
127 | } | ||
128 | } | ||
129 | return -ENODEV; | ||
130 | } | ||
131 | |||
132 | static int __init power_probe_isa(struct resource **resp, unsigned int *irq_p, int *prom_node_p) | ||
133 | { | ||
134 | struct sparc_isa_bridge *isa_bus; | ||
135 | struct sparc_isa_device *isa_dev; | ||
136 | |||
137 | for_each_isa(isa_bus) { | ||
138 | for_each_isadev(isa_dev, isa_bus) { | ||
139 | if (!strcmp(isa_dev->prom_name, "power")) { | ||
140 | *resp = &isa_dev->resource; | ||
141 | *irq_p = isa_dev->irq; | ||
142 | *prom_node_p = isa_dev->prom_node; | ||
143 | return 0; | ||
144 | } | ||
145 | } | ||
146 | } | ||
147 | return -ENODEV; | ||
148 | } | ||
149 | |||
150 | void __init power_init(void) | ||
151 | { | ||
152 | struct resource *res = NULL; | ||
153 | unsigned int irq; | ||
154 | int prom_node; | ||
117 | static int invoked; | 155 | static int invoked; |
118 | 156 | ||
119 | if (invoked) | 157 | if (invoked) |
120 | return; | 158 | return; |
121 | invoked = 1; | 159 | invoked = 1; |
122 | 160 | ||
123 | for_each_ebus(ebus) { | 161 | if (!power_probe_ebus(&res, &irq, &prom_node)) |
124 | for_each_ebusdev(edev, ebus) { | 162 | goto found; |
125 | if (!strcmp(edev->prom_name, "power")) | 163 | |
126 | goto found; | 164 | if (!power_probe_isa(&res, &irq, &prom_node)) |
127 | } | 165 | goto found; |
128 | } | 166 | |
129 | return; | 167 | return; |
130 | 168 | ||
131 | found: | 169 | found: |
132 | power_reg = ioremap(edev->resource[0].start, 0x4); | 170 | power_reg = ioremap(res->start, 0x4); |
133 | printk("power: Control reg at %p ... ", power_reg); | 171 | printk("power: Control reg at %p ... ", power_reg); |
134 | poweroff_method = machine_halt; /* able to use the standard halt */ | 172 | poweroff_method = machine_halt; /* able to use the standard halt */ |
135 | if (has_button_interrupt(edev)) { | 173 | if (has_button_interrupt(irq, prom_node)) { |
136 | if (kernel_thread(powerd, NULL, CLONE_FS) < 0) { | 174 | if (kernel_thread(powerd, NULL, CLONE_FS) < 0) { |
137 | printk("Failed to start power daemon.\n"); | 175 | printk("Failed to start power daemon.\n"); |
138 | return; | 176 | return; |
139 | } | 177 | } |
140 | printk("powerd running.\n"); | 178 | printk("powerd running.\n"); |
141 | 179 | ||
142 | if (request_irq(edev->irqs[0], | 180 | if (request_irq(irq, |
143 | power_handler, SA_SHIRQ, "power", NULL) < 0) | 181 | power_handler, SA_SHIRQ, "power", NULL) < 0) |
144 | printk("power: Error, cannot register IRQ handler.\n"); | 182 | printk("power: Error, cannot register IRQ handler.\n"); |
145 | } else { | 183 | } else { |