2 * linux/arch/i386/kernel/reboot_fixups.c
4 * This is a good place to put board specific reboot fixups.
6 * List of supported fixups:
7 * geode-gx1/cs5530a - Jaya Kumar <jayalk@intworks.biz>
11 #include <asm/delay.h>
12 #include <linux/pci.h>
14 static void cs5530a_warm_reset(struct pci_dev
*dev
)
16 /* writing 1 to the reset control register, 0x44 causes the
17 cs5530a to perform a system warm reset */
18 pci_write_config_byte(dev
, 0x44, 0x1);
19 udelay(50); /* shouldn't get here but be safe and spin-a-while */
26 void (*reboot_fixup
)(struct pci_dev
*);
29 static struct device_fixup fixups_table
[] = {
30 { PCI_VENDOR_ID_CYRIX
, PCI_DEVICE_ID_CYRIX_5530_LEGACY
, cs5530a_warm_reset
},
34 * we see if any fixup is available for our current hardware. if there
35 * is a fixup, we call it and we expect to never return from it. if we
36 * do return, we keep looking and then eventually fall back to the
37 * standard mach_reboot on return.
39 void mach_reboot_fixups(void)
41 struct device_fixup
*cur
;
45 for (i
=0; i
< (sizeof(fixups_table
)/sizeof(fixups_table
[0])); i
++) {
46 cur
= &(fixups_table
[i
]);
47 dev
= pci_get_device(cur
->vendor
, cur
->device
, 0);
51 cur
->reboot_fixup(dev
);
54 printk(KERN_WARNING
"No reboot fixup found for your hardware\n");