ia64/linux-2.6.18-xen.hg

view arch/m68k/amiga/pcmcia.c @ 452:c7ed6fe5dca0

kexec: dont initialise regions in reserve_memory()

There is no need to initialise efi_memmap_res and boot_param_res in
reserve_memory() for the initial xen domain as it is done in
machine_kexec_setup_resources() using values from the kexec hypercall.

Signed-off-by: Simon Horman <horms@verge.net.au>
author Keir Fraser <keir.fraser@citrix.com>
date Thu Feb 28 10:55:18 2008 +0000 (2008-02-28)
parents 831230e53067
children
line source
1 /*
2 ** asm-m68k/pcmcia.c -- Amiga Linux PCMCIA support
3 ** most information was found by disassembling card.resource
4 ** I'm still looking for an official doc !
5 **
6 ** Copyright 1997 by Alain Malek
7 **
8 ** This file is subject to the terms and conditions of the GNU General Public
9 ** License. See the file COPYING in the main directory of this archive
10 ** for more details.
11 **
12 ** Created: 12/10/97 by Alain Malek
13 */
15 #include <linux/types.h>
16 #include <linux/jiffies.h>
17 #include <linux/timer.h>
18 #include <asm/amigayle.h>
19 #include <asm/amipcmcia.h>
21 /* gayle config byte for program voltage and access speed */
22 static unsigned char cfg_byte = GAYLE_CFG_0V|GAYLE_CFG_150NS;
24 void pcmcia_reset(void)
25 {
26 unsigned long reset_start_time = jiffies;
27 unsigned char b;
29 gayle_reset = 0x00;
30 while (time_before(jiffies, reset_start_time + 1*HZ/100));
31 b = gayle_reset;
32 }
35 /* copy a tuple, including tuple header. return nb bytes copied */
36 /* be carefull as this may trigger a GAYLE_IRQ_WR interrupt ! */
38 int pcmcia_copy_tuple(unsigned char tuple_id, void *tuple, int max_len)
39 {
40 unsigned char id, *dest;
41 int cnt, pos, len;
43 dest = tuple;
44 pos = 0;
46 id = gayle_attribute[pos];
48 while((id != CISTPL_END) && (pos < 0x10000)) {
49 len = (int)gayle_attribute[pos+2] + 2;
50 if (id == tuple_id) {
51 len = (len > max_len)?max_len:len;
52 for (cnt = 0; cnt < len; cnt++) {
53 *dest++ = gayle_attribute[pos+(cnt<<1)];
54 }
56 return len;
57 }
58 pos += len<<1;
59 id = gayle_attribute[pos];
60 }
62 return 0;
63 }
65 void pcmcia_program_voltage(int voltage)
66 {
67 unsigned char v;
69 switch (voltage) {
70 case PCMCIA_0V:
71 v = GAYLE_CFG_0V;
72 break;
73 case PCMCIA_5V:
74 v = GAYLE_CFG_5V;
75 break;
76 case PCMCIA_12V:
77 v = GAYLE_CFG_12V;
78 break;
79 default:
80 v = GAYLE_CFG_0V;
81 }
83 cfg_byte = (cfg_byte & 0xfc) | v;
84 gayle.config = cfg_byte;
86 }
88 void pcmcia_access_speed(int speed)
89 {
90 unsigned char s;
92 if (speed <= PCMCIA_SPEED_100NS)
93 s = GAYLE_CFG_100NS;
94 else if (speed <= PCMCIA_SPEED_150NS)
95 s = GAYLE_CFG_150NS;
96 else if (speed <= PCMCIA_SPEED_250NS)
97 s = GAYLE_CFG_250NS;
98 else
99 s = GAYLE_CFG_720NS;
101 cfg_byte = (cfg_byte & 0xf3) | s;
102 gayle.config = cfg_byte;
103 }
105 void pcmcia_write_enable(void)
106 {
107 gayle.cardstatus = GAYLE_CS_WR|GAYLE_CS_DA;
108 }
110 void pcmcia_write_disable(void)
111 {
112 gayle.cardstatus = 0;
113 }