ia64/linux-2.6.18-xen.hg

view arch/arm26/machine/latches.c @ 647:a5bb490065f6

Fix the build after public header sync.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
author Keir Fraser <keir.fraser@citrix.com>
date Wed Aug 13 14:01:49 2008 +0100 (2008-08-13)
parents 831230e53067
children
line source
1 /*
2 * linux/arch/arm26/kernel/latches.c
3 *
4 * Copyright (C) David Alan Gilbert 1995/1996,2000
5 * Copyright (C) Ian Molton 2003
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 *
11 * Support for the latches on the old Archimedes which control the floppy,
12 * hard disc and printer
13 */
14 #include <linux/module.h>
15 #include <linux/kernel.h>
16 #include <linux/init.h>
17 #include <linux/sched.h>
19 #include <asm/io.h>
20 #include <asm/hardware.h>
21 #include <asm/mach-types.h>
22 #include <asm/oldlatches.h>
24 static unsigned char latch_a_copy;
25 static unsigned char latch_b_copy;
27 /* newval=(oldval & ~mask)|newdata */
28 void oldlatch_aupdate(unsigned char mask,unsigned char newdata)
29 {
30 unsigned long flags;
32 BUG_ON(!machine_is_archimedes());
34 local_irq_save(flags); //FIXME: was local_save_flags
35 latch_a_copy = (latch_a_copy & ~mask) | newdata;
36 __raw_writeb(latch_a_copy, LATCHA_BASE);
37 local_irq_restore(flags);
39 printk("Latch: A = 0x%02x\n", latch_a_copy);
40 }
43 /* newval=(oldval & ~mask)|newdata */
44 void oldlatch_bupdate(unsigned char mask,unsigned char newdata)
45 {
46 unsigned long flags;
48 BUG_ON(!machine_is_archimedes());
51 local_irq_save(flags);//FIXME: was local_save_flags
52 latch_b_copy = (latch_b_copy & ~mask) | newdata;
53 __raw_writeb(latch_b_copy, LATCHB_BASE);
54 local_irq_restore(flags);
56 printk("Latch: B = 0x%02x\n", latch_b_copy);
57 }
59 static int __init oldlatch_init(void)
60 {
61 if (machine_is_archimedes()) {
62 oldlatch_aupdate(0xff, 0xff);
63 /* Thats no FDC reset...*/
64 oldlatch_bupdate(0xff, LATCHB_FDCRESET);
65 }
66 return 0;
67 }
69 arch_initcall(oldlatch_init);
71 EXPORT_SYMBOL(oldlatch_aupdate);
72 EXPORT_SYMBOL(oldlatch_bupdate);