Loading...
1/*
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 */
8#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#include <linux/io.h>
15#include <linux/slab.h>
16
17#include <pcmcia/ss.h>
18
19#include <mach/hardware.h>
20#include <asm/hardware/sa1111.h>
21#include <asm/irq.h>
22
23#include "sa1111_generic.h"
24
25#define IDX_IRQ_S0_READY_NINT (0)
26#define IDX_IRQ_S0_CD_VALID (1)
27#define IDX_IRQ_S0_BVD1_STSCHG (2)
28#define IDX_IRQ_S1_READY_NINT (3)
29#define IDX_IRQ_S1_CD_VALID (4)
30#define IDX_IRQ_S1_BVD1_STSCHG (5)
31
32static struct pcmcia_irqs irqs[] = {
33 { 0, NO_IRQ, "SA1111 PCMCIA card detect" },
34 { 0, NO_IRQ, "SA1111 PCMCIA BVD1" },
35 { 1, NO_IRQ, "SA1111 CF card detect" },
36 { 1, NO_IRQ, "SA1111 CF BVD1" },
37};
38
39static int sa1111_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
40{
41 return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));
42}
43
44static void sa1111_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
45{
46 soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs));
47}
48
49void sa1111_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state)
50{
51 struct sa1111_pcmcia_socket *s = to_skt(skt);
52 unsigned long status = sa1111_readl(s->dev->mapbase + SA1111_PCSR);
53
54 switch (skt->nr) {
55 case 0:
56 state->detect = status & PCSR_S0_DETECT ? 0 : 1;
57 state->ready = status & PCSR_S0_READY ? 1 : 0;
58 state->bvd1 = status & PCSR_S0_BVD1 ? 1 : 0;
59 state->bvd2 = status & PCSR_S0_BVD2 ? 1 : 0;
60 state->wrprot = status & PCSR_S0_WP ? 1 : 0;
61 state->vs_3v = status & PCSR_S0_VS1 ? 0 : 1;
62 state->vs_Xv = status & PCSR_S0_VS2 ? 0 : 1;
63 break;
64
65 case 1:
66 state->detect = status & PCSR_S1_DETECT ? 0 : 1;
67 state->ready = status & PCSR_S1_READY ? 1 : 0;
68 state->bvd1 = status & PCSR_S1_BVD1 ? 1 : 0;
69 state->bvd2 = status & PCSR_S1_BVD2 ? 1 : 0;
70 state->wrprot = status & PCSR_S1_WP ? 1 : 0;
71 state->vs_3v = status & PCSR_S1_VS1 ? 0 : 1;
72 state->vs_Xv = status & PCSR_S1_VS2 ? 0 : 1;
73 break;
74 }
75}
76
77int sa1111_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
78{
79 struct sa1111_pcmcia_socket *s = to_skt(skt);
80 unsigned int pccr_skt_mask, pccr_set_mask, val;
81 unsigned long flags;
82
83 switch (skt->nr) {
84 case 0:
85 pccr_skt_mask = PCCR_S0_RST|PCCR_S0_FLT|PCCR_S0_PWAITEN|PCCR_S0_PSE;
86 break;
87
88 case 1:
89 pccr_skt_mask = PCCR_S1_RST|PCCR_S1_FLT|PCCR_S1_PWAITEN|PCCR_S1_PSE;
90 break;
91
92 default:
93 return -1;
94 }
95
96 pccr_set_mask = 0;
97
98 if (state->Vcc != 0)
99 pccr_set_mask |= PCCR_S0_PWAITEN|PCCR_S1_PWAITEN;
100 if (state->Vcc == 50)
101 pccr_set_mask |= PCCR_S0_PSE|PCCR_S1_PSE;
102 if (state->flags & SS_RESET)
103 pccr_set_mask |= PCCR_S0_RST|PCCR_S1_RST;
104 if (state->flags & SS_OUTPUT_ENA)
105 pccr_set_mask |= PCCR_S0_FLT|PCCR_S1_FLT;
106
107 local_irq_save(flags);
108 val = sa1111_readl(s->dev->mapbase + SA1111_PCCR);
109 val &= ~pccr_skt_mask;
110 val |= pccr_set_mask & pccr_skt_mask;
111 sa1111_writel(val, s->dev->mapbase + SA1111_PCCR);
112 local_irq_restore(flags);
113
114 return 0;
115}
116
117void sa1111_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
118{
119 soc_pcmcia_enable_irqs(skt, irqs, ARRAY_SIZE(irqs));
120}
121
122static void sa1111_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
123{
124 soc_pcmcia_disable_irqs(skt, irqs, ARRAY_SIZE(irqs));
125}
126
127int sa1111_pcmcia_add(struct sa1111_dev *dev, struct pcmcia_low_level *ops,
128 int (*add)(struct soc_pcmcia_socket *))
129{
130 struct sa1111_pcmcia_socket *s;
131 int i, ret = 0;
132
133 ops->hw_init = sa1111_pcmcia_hw_init;
134 ops->hw_shutdown = sa1111_pcmcia_hw_shutdown;
135 ops->socket_state = sa1111_pcmcia_socket_state;
136 ops->socket_suspend = sa1111_pcmcia_socket_suspend;
137
138 for (i = 0; i < ops->nr; i++) {
139 s = kzalloc(sizeof(*s), GFP_KERNEL);
140 if (!s)
141 return -ENOMEM;
142
143 s->soc.nr = ops->first + i;
144 s->soc.ops = ops;
145 s->soc.socket.owner = ops->owner;
146 s->soc.socket.dev.parent = &dev->dev;
147 s->soc.socket.pci_irq = s->soc.nr ?
148 dev->irq[IDX_IRQ_S0_READY_NINT] :
149 dev->irq[IDX_IRQ_S1_READY_NINT];
150 s->dev = dev;
151
152 ret = add(&s->soc);
153 if (ret == 0) {
154 s->next = dev_get_drvdata(&dev->dev);
155 dev_set_drvdata(&dev->dev, s);
156 } else
157 kfree(s);
158 }
159
160 return ret;
161}
162
163static int pcmcia_probe(struct sa1111_dev *dev)
164{
165 void __iomem *base;
166
167 dev_set_drvdata(&dev->dev, NULL);
168
169 if (!request_mem_region(dev->res.start, 512,
170 SA1111_DRIVER_NAME(dev)))
171 return -EBUSY;
172
173 base = dev->mapbase;
174
175 /* Initialize PCMCIA IRQs */
176 irqs[0].irq = dev->irq[IDX_IRQ_S0_CD_VALID];
177 irqs[1].irq = dev->irq[IDX_IRQ_S0_BVD1_STSCHG];
178 irqs[2].irq = dev->irq[IDX_IRQ_S1_CD_VALID];
179 irqs[3].irq = dev->irq[IDX_IRQ_S1_BVD1_STSCHG];
180
181 /*
182 * Initialise the suspend state.
183 */
184 sa1111_writel(PCSSR_S0_SLEEP | PCSSR_S1_SLEEP, base + SA1111_PCSSR);
185 sa1111_writel(PCCR_S0_FLT | PCCR_S1_FLT, base + SA1111_PCCR);
186
187#ifdef CONFIG_SA1100_BADGE4
188 pcmcia_badge4_init(&dev->dev);
189#endif
190#ifdef CONFIG_SA1100_JORNADA720
191 pcmcia_jornada720_init(&dev->dev);
192#endif
193#ifdef CONFIG_ARCH_LUBBOCK
194 pcmcia_lubbock_init(dev);
195#endif
196#ifdef CONFIG_ASSABET_NEPONSET
197 pcmcia_neponset_init(dev);
198#endif
199 return 0;
200}
201
202static int __devexit pcmcia_remove(struct sa1111_dev *dev)
203{
204 struct sa1111_pcmcia_socket *next, *s = dev_get_drvdata(&dev->dev);
205
206 dev_set_drvdata(&dev->dev, NULL);
207
208 for (; next = s->next, s; s = next) {
209 soc_pcmcia_remove_one(&s->soc);
210 kfree(s);
211 }
212
213 release_mem_region(dev->res.start, 512);
214 return 0;
215}
216
217static struct sa1111_driver pcmcia_driver = {
218 .drv = {
219 .name = "sa1111-pcmcia",
220 },
221 .devid = SA1111_DEVID_PCMCIA,
222 .probe = pcmcia_probe,
223 .remove = __devexit_p(pcmcia_remove),
224};
225
226static int __init sa1111_drv_pcmcia_init(void)
227{
228 return sa1111_driver_register(&pcmcia_driver);
229}
230
231static void __exit sa1111_drv_pcmcia_exit(void)
232{
233 sa1111_driver_unregister(&pcmcia_driver);
234}
235
236fs_initcall(sa1111_drv_pcmcia_init);
237module_exit(sa1111_drv_pcmcia_exit);
238
239MODULE_DESCRIPTION("SA1111 PCMCIA card socket driver");
240MODULE_LICENSE("GPL");
1/*
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 */
8#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#include <linux/io.h>
15#include <linux/slab.h>
16
17#include <pcmcia/ss.h>
18
19#include <mach/hardware.h>
20#include <asm/hardware/sa1111.h>
21#include <asm/irq.h>
22
23#include "sa1111_generic.h"
24
25/*
26 * These are offsets from the above base.
27 */
28#define PCCR 0x0000
29#define PCSSR 0x0004
30#define PCSR 0x0008
31
32#define PCSR_S0_READY (1<<0)
33#define PCSR_S1_READY (1<<1)
34#define PCSR_S0_DETECT (1<<2)
35#define PCSR_S1_DETECT (1<<3)
36#define PCSR_S0_VS1 (1<<4)
37#define PCSR_S0_VS2 (1<<5)
38#define PCSR_S1_VS1 (1<<6)
39#define PCSR_S1_VS2 (1<<7)
40#define PCSR_S0_WP (1<<8)
41#define PCSR_S1_WP (1<<9)
42#define PCSR_S0_BVD1 (1<<10)
43#define PCSR_S0_BVD2 (1<<11)
44#define PCSR_S1_BVD1 (1<<12)
45#define PCSR_S1_BVD2 (1<<13)
46
47#define PCCR_S0_RST (1<<0)
48#define PCCR_S1_RST (1<<1)
49#define PCCR_S0_FLT (1<<2)
50#define PCCR_S1_FLT (1<<3)
51#define PCCR_S0_PWAITEN (1<<4)
52#define PCCR_S1_PWAITEN (1<<5)
53#define PCCR_S0_PSE (1<<6)
54#define PCCR_S1_PSE (1<<7)
55
56#define PCSSR_S0_SLEEP (1<<0)
57#define PCSSR_S1_SLEEP (1<<1)
58
59#define IDX_IRQ_S0_READY_NINT (0)
60#define IDX_IRQ_S0_CD_VALID (1)
61#define IDX_IRQ_S0_BVD1_STSCHG (2)
62#define IDX_IRQ_S1_READY_NINT (3)
63#define IDX_IRQ_S1_CD_VALID (4)
64#define IDX_IRQ_S1_BVD1_STSCHG (5)
65
66void sa1111_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state)
67{
68 struct sa1111_pcmcia_socket *s = to_skt(skt);
69 unsigned long status = sa1111_readl(s->dev->mapbase + PCSR);
70
71 switch (skt->nr) {
72 case 0:
73 state->detect = status & PCSR_S0_DETECT ? 0 : 1;
74 state->ready = status & PCSR_S0_READY ? 1 : 0;
75 state->bvd1 = status & PCSR_S0_BVD1 ? 1 : 0;
76 state->bvd2 = status & PCSR_S0_BVD2 ? 1 : 0;
77 state->wrprot = status & PCSR_S0_WP ? 1 : 0;
78 state->vs_3v = status & PCSR_S0_VS1 ? 0 : 1;
79 state->vs_Xv = status & PCSR_S0_VS2 ? 0 : 1;
80 break;
81
82 case 1:
83 state->detect = status & PCSR_S1_DETECT ? 0 : 1;
84 state->ready = status & PCSR_S1_READY ? 1 : 0;
85 state->bvd1 = status & PCSR_S1_BVD1 ? 1 : 0;
86 state->bvd2 = status & PCSR_S1_BVD2 ? 1 : 0;
87 state->wrprot = status & PCSR_S1_WP ? 1 : 0;
88 state->vs_3v = status & PCSR_S1_VS1 ? 0 : 1;
89 state->vs_Xv = status & PCSR_S1_VS2 ? 0 : 1;
90 break;
91 }
92}
93
94int sa1111_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
95{
96 struct sa1111_pcmcia_socket *s = to_skt(skt);
97 unsigned int pccr_skt_mask, pccr_set_mask, val;
98 unsigned long flags;
99
100 switch (skt->nr) {
101 case 0:
102 pccr_skt_mask = PCCR_S0_RST|PCCR_S0_FLT|PCCR_S0_PWAITEN|PCCR_S0_PSE;
103 break;
104
105 case 1:
106 pccr_skt_mask = PCCR_S1_RST|PCCR_S1_FLT|PCCR_S1_PWAITEN|PCCR_S1_PSE;
107 break;
108
109 default:
110 return -1;
111 }
112
113 pccr_set_mask = 0;
114
115 if (state->Vcc != 0)
116 pccr_set_mask |= PCCR_S0_PWAITEN|PCCR_S1_PWAITEN;
117 if (state->Vcc == 50)
118 pccr_set_mask |= PCCR_S0_PSE|PCCR_S1_PSE;
119 if (state->flags & SS_RESET)
120 pccr_set_mask |= PCCR_S0_RST|PCCR_S1_RST;
121 if (state->flags & SS_OUTPUT_ENA)
122 pccr_set_mask |= PCCR_S0_FLT|PCCR_S1_FLT;
123
124 local_irq_save(flags);
125 val = sa1111_readl(s->dev->mapbase + PCCR);
126 val &= ~pccr_skt_mask;
127 val |= pccr_set_mask & pccr_skt_mask;
128 sa1111_writel(val, s->dev->mapbase + PCCR);
129 local_irq_restore(flags);
130
131 return 0;
132}
133
134int sa1111_pcmcia_add(struct sa1111_dev *dev, struct pcmcia_low_level *ops,
135 int (*add)(struct soc_pcmcia_socket *))
136{
137 struct sa1111_pcmcia_socket *s;
138 int i, ret = 0;
139
140 ops->socket_state = sa1111_pcmcia_socket_state;
141
142 for (i = 0; i < ops->nr; i++) {
143 s = kzalloc(sizeof(*s), GFP_KERNEL);
144 if (!s)
145 return -ENOMEM;
146
147 s->soc.nr = ops->first + i;
148 soc_pcmcia_init_one(&s->soc, ops, &dev->dev);
149 s->dev = dev;
150 if (s->soc.nr) {
151 s->soc.socket.pci_irq = dev->irq[IDX_IRQ_S1_READY_NINT];
152 s->soc.stat[SOC_STAT_CD].irq = dev->irq[IDX_IRQ_S1_CD_VALID];
153 s->soc.stat[SOC_STAT_CD].name = "SA1111 CF card detect";
154 s->soc.stat[SOC_STAT_BVD1].irq = dev->irq[IDX_IRQ_S1_BVD1_STSCHG];
155 s->soc.stat[SOC_STAT_BVD1].name = "SA1111 CF BVD1";
156 } else {
157 s->soc.socket.pci_irq = dev->irq[IDX_IRQ_S0_READY_NINT];
158 s->soc.stat[SOC_STAT_CD].irq = dev->irq[IDX_IRQ_S0_CD_VALID];
159 s->soc.stat[SOC_STAT_CD].name = "SA1111 PCMCIA card detect";
160 s->soc.stat[SOC_STAT_BVD1].irq = dev->irq[IDX_IRQ_S0_BVD1_STSCHG];
161 s->soc.stat[SOC_STAT_BVD1].name = "SA1111 PCMCIA BVD1";
162 }
163
164 ret = add(&s->soc);
165 if (ret == 0) {
166 s->next = dev_get_drvdata(&dev->dev);
167 dev_set_drvdata(&dev->dev, s);
168 } else
169 kfree(s);
170 }
171
172 return ret;
173}
174
175static int pcmcia_probe(struct sa1111_dev *dev)
176{
177 void __iomem *base;
178 int ret;
179
180 ret = sa1111_enable_device(dev);
181 if (ret)
182 return ret;
183
184 dev_set_drvdata(&dev->dev, NULL);
185
186 if (!request_mem_region(dev->res.start, 512, SA1111_DRIVER_NAME(dev))) {
187 sa1111_disable_device(dev);
188 return -EBUSY;
189 }
190
191 base = dev->mapbase;
192
193 /*
194 * Initialise the suspend state.
195 */
196 sa1111_writel(PCSSR_S0_SLEEP | PCSSR_S1_SLEEP, base + PCSSR);
197 sa1111_writel(PCCR_S0_FLT | PCCR_S1_FLT, base + PCCR);
198
199#ifdef CONFIG_SA1100_BADGE4
200 pcmcia_badge4_init(&dev->dev);
201#endif
202#ifdef CONFIG_SA1100_JORNADA720
203 pcmcia_jornada720_init(&dev->dev);
204#endif
205#ifdef CONFIG_ARCH_LUBBOCK
206 pcmcia_lubbock_init(dev);
207#endif
208#ifdef CONFIG_ASSABET_NEPONSET
209 pcmcia_neponset_init(dev);
210#endif
211 return 0;
212}
213
214static int __devexit pcmcia_remove(struct sa1111_dev *dev)
215{
216 struct sa1111_pcmcia_socket *next, *s = dev_get_drvdata(&dev->dev);
217
218 dev_set_drvdata(&dev->dev, NULL);
219
220 for (; s; s = next) {
221 next = s->next;
222 soc_pcmcia_remove_one(&s->soc);
223 kfree(s);
224 }
225
226 release_mem_region(dev->res.start, 512);
227 sa1111_disable_device(dev);
228 return 0;
229}
230
231static struct sa1111_driver pcmcia_driver = {
232 .drv = {
233 .name = "sa1111-pcmcia",
234 },
235 .devid = SA1111_DEVID_PCMCIA,
236 .probe = pcmcia_probe,
237 .remove = __devexit_p(pcmcia_remove),
238};
239
240static int __init sa1111_drv_pcmcia_init(void)
241{
242 return sa1111_driver_register(&pcmcia_driver);
243}
244
245static void __exit sa1111_drv_pcmcia_exit(void)
246{
247 sa1111_driver_unregister(&pcmcia_driver);
248}
249
250fs_initcall(sa1111_drv_pcmcia_init);
251module_exit(sa1111_drv_pcmcia_exit);
252
253MODULE_DESCRIPTION("SA1111 PCMCIA card socket driver");
254MODULE_LICENSE("GPL");