aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/pcmcia/au1000_xxs1500.c
diff options
context:
space:
mode:
authorManuel Lauss <manuel.lauss@googlemail.com>2009-10-04 08:55:29 -0400
committerRalf Baechle <ralf@linux-mips.org>2010-02-27 06:52:51 -0500
commit0273b4efccd3bc2b2ef5ea9778e71d8efbbb7ac7 (patch)
treec67c6fb5ff0aa4a0201676374b252ea60475235c /drivers/pcmcia/au1000_xxs1500.c
parent27dd65ac9afabc8e67ab73f7c2f575eddbb47167 (diff)
MIPS: Alchemy: XXS1500 PCMCIA driver rewrite
Rewritten XXS1500 PCMCIA socket driver, standalone (doesn't depend on au1000_generic.c) and added carddetect IRQ support. Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com> Cc: Florian Fainelli <florian@openwrt.org> Cc: Linux-PCMCIA <linux-pcmcia@lists.infradead.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'drivers/pcmcia/au1000_xxs1500.c')
-rw-r--r--drivers/pcmcia/au1000_xxs1500.c188
1 files changed, 0 insertions, 188 deletions
diff --git a/drivers/pcmcia/au1000_xxs1500.c b/drivers/pcmcia/au1000_xxs1500.c
deleted file mode 100644
index b43d47b50819..000000000000
--- a/drivers/pcmcia/au1000_xxs1500.c
+++ /dev/null
@@ -1,188 +0,0 @@
1/*
2 *
3 * MyCable board specific pcmcia routines.
4 *
5 * Copyright 2003 MontaVista Software Inc.
6 * Author: Pete Popov, MontaVista Software, Inc.
7 * ppopov@mvista.com or source@mvista.com
8 *
9 * ########################################################################
10 *
11 * This program is free software; you can distribute it and/or modify it
12 * under the terms of the GNU General Public License (Version 2) as
13 * published by the Free Software Foundation.
14 *
15 * This program is distributed in the hope it will be useful, but WITHOUT
16 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
17 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 * for more details.
19 *
20 * You should have received a copy of the GNU General Public License along
21 * with this program; if not, write to the Free Software Foundation, Inc.,
22 * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
23 *
24 * ########################################################################
25 *
26 *
27 */
28#include <linux/module.h>
29#include <linux/init.h>
30#include <linux/delay.h>
31#include <linux/ioport.h>
32#include <linux/kernel.h>
33#include <linux/timer.h>
34#include <linux/mm.h>
35#include <linux/proc_fs.h>
36#include <linux/types.h>
37
38#include <pcmcia/cs_types.h>
39#include <pcmcia/cs.h>
40#include <pcmcia/ss.h>
41#include <pcmcia/cistpl.h>
42#include <pcmcia/bus_ops.h>
43
44#include <asm/io.h>
45#include <asm/irq.h>
46#include <asm/system.h>
47
48#include <asm/au1000.h>
49#include <asm/au1000_pcmcia.h>
50
51#define PCMCIA_MAX_SOCK 0
52#define PCMCIA_NUM_SOCKS (PCMCIA_MAX_SOCK + 1)
53#define PCMCIA_IRQ AU1000_GPIO_4
54
55#if 0
56#define DEBUG(x, args...) printk(__func__ ": " x, ##args)
57#else
58#define DEBUG(x,args...)
59#endif
60
61static int xxs1500_pcmcia_init(struct pcmcia_init *init)
62{
63 return PCMCIA_NUM_SOCKS;
64}
65
66static int xxs1500_pcmcia_shutdown(void)
67{
68 /* turn off power */
69 au_writel(au_readl(GPIO2_PINSTATE) | (1<<14)|(1<<30),
70 GPIO2_OUTPUT);
71 au_sync_delay(100);
72
73 /* assert reset */
74 au_writel(au_readl(GPIO2_PINSTATE) | (1<<4)|(1<<20),
75 GPIO2_OUTPUT);
76 au_sync_delay(100);
77 return 0;
78}
79
80
81static int
82xxs1500_pcmcia_socket_state(unsigned sock, struct pcmcia_state *state)
83{
84 u32 inserted; u32 vs;
85 unsigned long gpio, gpio2;
86
87 if(sock > PCMCIA_MAX_SOCK) return -1;
88
89 gpio = au_readl(SYS_PINSTATERD);
90 gpio2 = au_readl(GPIO2_PINSTATE);
91
92 vs = gpio2 & ((1<<8) | (1<<9));
93 inserted = (!(gpio & 0x1) && !(gpio & 0x2));
94
95 state->ready = 0;
96 state->vs_Xv = 0;
97 state->vs_3v = 0;
98 state->detect = 0;
99
100 if (inserted) {
101 switch (vs) {
102 case 0:
103 case 1:
104 case 2:
105 state->vs_3v=1;
106 break;
107 case 3: /* 5V */
108 default:
109 /* return without setting 'detect' */
110 printk(KERN_ERR "au1x00_cs: unsupported VS\n",
111 vs);
112 return;
113 }
114 state->detect = 1;
115 }
116
117 if (state->detect) {
118 state->ready = 1;
119 }
120
121 state->bvd1= gpio2 & (1<<10);
122 state->bvd2 = gpio2 & (1<<11);
123 state->wrprot=0;
124 return 1;
125}
126
127
128static int xxs1500_pcmcia_get_irq_info(struct pcmcia_irq_info *info)
129{
130
131 if(info->sock > PCMCIA_MAX_SOCK) return -1;
132 info->irq = PCMCIA_IRQ;
133 return 0;
134}
135
136
137static int
138xxs1500_pcmcia_configure_socket(const struct pcmcia_configure *configure)
139{
140
141 if(configure->sock > PCMCIA_MAX_SOCK) return -1;
142
143 DEBUG("Vcc %dV Vpp %dV, reset %d\n",
144 configure->vcc, configure->vpp, configure->reset);
145
146 switch(configure->vcc){
147 case 33: /* Vcc 3.3V */
148 /* turn on power */
149 DEBUG("turn on power\n");
150 au_writel((au_readl(GPIO2_PINSTATE) & ~(1<<14))|(1<<30),
151 GPIO2_OUTPUT);
152 au_sync_delay(100);
153 break;
154 case 50: /* Vcc 5V */
155 default: /* what's this ? */
156 printk(KERN_ERR "au1x00_cs: unsupported VCC\n");
157 case 0: /* Vcc 0 */
158 /* turn off power */
159 au_sync_delay(100);
160 au_writel(au_readl(GPIO2_PINSTATE) | (1<<14)|(1<<30),
161 GPIO2_OUTPUT);
162 break;
163 }
164
165 if (!configure->reset) {
166 DEBUG("deassert reset\n");
167 au_writel((au_readl(GPIO2_PINSTATE) & ~(1<<4))|(1<<20),
168 GPIO2_OUTPUT);
169 au_sync_delay(100);
170 au_writel((au_readl(GPIO2_PINSTATE) & ~(1<<5))|(1<<21),
171 GPIO2_OUTPUT);
172 }
173 else {
174 DEBUG("assert reset\n");
175 au_writel(au_readl(GPIO2_PINSTATE) | (1<<4)|(1<<20),
176 GPIO2_OUTPUT);
177 }
178 au_sync_delay(100);
179 return 0;
180}
181
182struct pcmcia_low_level xxs1500_pcmcia_ops = {
183 xxs1500_pcmcia_init,
184 xxs1500_pcmcia_shutdown,
185 xxs1500_pcmcia_socket_state,
186 xxs1500_pcmcia_get_irq_info,
187 xxs1500_pcmcia_configure_socket
188};
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-01 14:26:14 -0500