blob: 6924d0ea8d3273b75cc13ccb57e9a99d654b302f [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * linux/drivers/pcmcia/sa1111_generic.c
3 *
4 * We implement the generic parts of a SA1111 PCMCIA driver. This
5 * basically means we handle everything except controlling the
6 * power. Power is machine specific...
7 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07008#include <linux/module.h>
9#include <linux/kernel.h>
10#include <linux/ioport.h>
11#include <linux/device.h>
12#include <linux/interrupt.h>
13#include <linux/init.h>
14
15#include <pcmcia/ss.h>
16
Russell Kinga09e64f2008-08-05 16:14:15 +010017#include <mach/hardware.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070018#include <asm/hardware/sa1111.h>
19#include <asm/io.h>
20#include <asm/irq.h>
21
22#include "sa1111_generic.h"
23
24static struct pcmcia_irqs irqs[] = {
25 { 0, IRQ_S0_CD_VALID, "SA1111 PCMCIA card detect" },
26 { 0, IRQ_S0_BVD1_STSCHG, "SA1111 PCMCIA BVD1" },
27 { 1, IRQ_S1_CD_VALID, "SA1111 CF card detect" },
28 { 1, IRQ_S1_BVD1_STSCHG, "SA1111 CF BVD1" },
29};
30
31int sa1111_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
32{
33 if (skt->irq == NO_IRQ)
34 skt->irq = skt->nr ? IRQ_S1_READY_NINT : IRQ_S0_READY_NINT;
35
36 return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));
37}
38
39void sa1111_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
40{
41 soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs));
42}
43
44void sa1111_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state)
45{
46 struct sa1111_dev *sadev = SA1111_DEV(skt->dev);
47 unsigned long status = sa1111_readl(sadev->mapbase + SA1111_PCSR);
48
49 switch (skt->nr) {
50 case 0:
51 state->detect = status & PCSR_S0_DETECT ? 0 : 1;
52 state->ready = status & PCSR_S0_READY ? 1 : 0;
53 state->bvd1 = status & PCSR_S0_BVD1 ? 1 : 0;
54 state->bvd2 = status & PCSR_S0_BVD2 ? 1 : 0;
55 state->wrprot = status & PCSR_S0_WP ? 1 : 0;
56 state->vs_3v = status & PCSR_S0_VS1 ? 0 : 1;
57 state->vs_Xv = status & PCSR_S0_VS2 ? 0 : 1;
58 break;
59
60 case 1:
61 state->detect = status & PCSR_S1_DETECT ? 0 : 1;
62 state->ready = status & PCSR_S1_READY ? 1 : 0;
63 state->bvd1 = status & PCSR_S1_BVD1 ? 1 : 0;
64 state->bvd2 = status & PCSR_S1_BVD2 ? 1 : 0;
65 state->wrprot = status & PCSR_S1_WP ? 1 : 0;
66 state->vs_3v = status & PCSR_S1_VS1 ? 0 : 1;
67 state->vs_Xv = status & PCSR_S1_VS2 ? 0 : 1;
68 break;
69 }
70}
71
72int sa1111_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
73{
74 struct sa1111_dev *sadev = SA1111_DEV(skt->dev);
75 unsigned int pccr_skt_mask, pccr_set_mask, val;
76 unsigned long flags;
77
78 switch (skt->nr) {
79 case 0:
80 pccr_skt_mask = PCCR_S0_RST|PCCR_S0_FLT|PCCR_S0_PWAITEN|PCCR_S0_PSE;
81 break;
82
83 case 1:
84 pccr_skt_mask = PCCR_S1_RST|PCCR_S1_FLT|PCCR_S1_PWAITEN|PCCR_S1_PSE;
85 break;
86
87 default:
88 return -1;
89 }
90
91 pccr_set_mask = 0;
92
93 if (state->Vcc != 0)
94 pccr_set_mask |= PCCR_S0_PWAITEN|PCCR_S1_PWAITEN;
95 if (state->Vcc == 50)
96 pccr_set_mask |= PCCR_S0_PSE|PCCR_S1_PSE;
97 if (state->flags & SS_RESET)
98 pccr_set_mask |= PCCR_S0_RST|PCCR_S1_RST;
99 if (state->flags & SS_OUTPUT_ENA)
100 pccr_set_mask |= PCCR_S0_FLT|PCCR_S1_FLT;
101
102 local_irq_save(flags);
103 val = sa1111_readl(sadev->mapbase + SA1111_PCCR);
104 val &= ~pccr_skt_mask;
105 val |= pccr_set_mask & pccr_skt_mask;
106 sa1111_writel(val, sadev->mapbase + SA1111_PCCR);
107 local_irq_restore(flags);
108
109 return 0;
110}
111
112void sa1111_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
113{
114 soc_pcmcia_enable_irqs(skt, irqs, ARRAY_SIZE(irqs));
115}
116
117void sa1111_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
118{
119 soc_pcmcia_disable_irqs(skt, irqs, ARRAY_SIZE(irqs));
120}
121
122static int pcmcia_probe(struct sa1111_dev *dev)
123{
Russell Kingf339ab32005-10-28 14:29:43 +0100124 void __iomem *base;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125
126 if (!request_mem_region(dev->res.start, 512,
127 SA1111_DRIVER_NAME(dev)))
128 return -EBUSY;
129
130 base = dev->mapbase;
131
132 /*
133 * Initialise the suspend state.
134 */
135 sa1111_writel(PCSSR_S0_SLEEP | PCSSR_S1_SLEEP, base + SA1111_PCSSR);
136 sa1111_writel(PCCR_S0_FLT | PCCR_S1_FLT, base + SA1111_PCCR);
137
138#ifdef CONFIG_SA1100_BADGE4
139 pcmcia_badge4_init(&dev->dev);
140#endif
141#ifdef CONFIG_SA1100_JORNADA720
142 pcmcia_jornada720_init(&dev->dev);
143#endif
144#ifdef CONFIG_ARCH_LUBBOCK
145 pcmcia_lubbock_init(dev);
146#endif
147#ifdef CONFIG_ASSABET_NEPONSET
148 pcmcia_neponset_init(dev);
149#endif
150 return 0;
151}
152
153static int __devexit pcmcia_remove(struct sa1111_dev *dev)
154{
155 soc_common_drv_pcmcia_remove(&dev->dev);
156 release_mem_region(dev->res.start, 512);
157 return 0;
158}
159
Pavel Machek8bf28032005-04-16 15:25:26 -0700160static int pcmcia_suspend(struct sa1111_dev *dev, pm_message_t state)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161{
162 return pcmcia_socket_dev_suspend(&dev->dev, state);
163}
164
165static int pcmcia_resume(struct sa1111_dev *dev)
166{
167 return pcmcia_socket_dev_resume(&dev->dev);
168}
169
170static struct sa1111_driver pcmcia_driver = {
171 .drv = {
172 .name = "sa1111-pcmcia",
173 },
174 .devid = SA1111_DEVID_PCMCIA,
175 .probe = pcmcia_probe,
176 .remove = __devexit_p(pcmcia_remove),
177 .suspend = pcmcia_suspend,
178 .resume = pcmcia_resume,
179};
180
181static int __init sa1111_drv_pcmcia_init(void)
182{
183 return sa1111_driver_register(&pcmcia_driver);
184}
185
186static void __exit sa1111_drv_pcmcia_exit(void)
187{
188 sa1111_driver_unregister(&pcmcia_driver);
189}
190
Richard Purdief36598a2005-09-03 19:39:25 +0100191fs_initcall(sa1111_drv_pcmcia_init);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700192module_exit(sa1111_drv_pcmcia_exit);
193
194MODULE_DESCRIPTION("SA1111 PCMCIA card socket driver");
195MODULE_LICENSE("GPL");