2 * linux/drivers/pcmcia/sa1111_generic.c
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...
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>
15 #include <linux/slab.h>
17 #include <pcmcia/ss.h>
19 #include <mach/hardware.h>
20 #include <asm/hardware/sa1111.h>
23 #include "sa1111_generic.h"
26 * These are offsets from the above base.
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)
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)
56 #define PCSSR_S0_SLEEP (1<<0)
57 #define PCSSR_S1_SLEEP (1<<1)
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)
66 static struct pcmcia_irqs irqs[] = {
67 { 0, NO_IRQ, "SA1111 PCMCIA card detect" },
68 { 0, NO_IRQ, "SA1111 PCMCIA BVD1" },
69 { 1, NO_IRQ, "SA1111 CF card detect" },
70 { 1, NO_IRQ, "SA1111 CF BVD1" },
73 static int sa1111_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
75 return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));
78 static void sa1111_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
80 soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs));
83 void sa1111_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state)
85 struct sa1111_pcmcia_socket *s = to_skt(skt);
86 unsigned long status = sa1111_readl(s->dev->mapbase + PCSR);
90 state->detect = status & PCSR_S0_DETECT ? 0 : 1;
91 state->ready = status & PCSR_S0_READY ? 1 : 0;
92 state->bvd1 = status & PCSR_S0_BVD1 ? 1 : 0;
93 state->bvd2 = status & PCSR_S0_BVD2 ? 1 : 0;
94 state->wrprot = status & PCSR_S0_WP ? 1 : 0;
95 state->vs_3v = status & PCSR_S0_VS1 ? 0 : 1;
96 state->vs_Xv = status & PCSR_S0_VS2 ? 0 : 1;
100 state->detect = status & PCSR_S1_DETECT ? 0 : 1;
101 state->ready = status & PCSR_S1_READY ? 1 : 0;
102 state->bvd1 = status & PCSR_S1_BVD1 ? 1 : 0;
103 state->bvd2 = status & PCSR_S1_BVD2 ? 1 : 0;
104 state->wrprot = status & PCSR_S1_WP ? 1 : 0;
105 state->vs_3v = status & PCSR_S1_VS1 ? 0 : 1;
106 state->vs_Xv = status & PCSR_S1_VS2 ? 0 : 1;
111 int sa1111_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
113 struct sa1111_pcmcia_socket *s = to_skt(skt);
114 unsigned int pccr_skt_mask, pccr_set_mask, val;
119 pccr_skt_mask = PCCR_S0_RST|PCCR_S0_FLT|PCCR_S0_PWAITEN|PCCR_S0_PSE;
123 pccr_skt_mask = PCCR_S1_RST|PCCR_S1_FLT|PCCR_S1_PWAITEN|PCCR_S1_PSE;
133 pccr_set_mask |= PCCR_S0_PWAITEN|PCCR_S1_PWAITEN;
134 if (state->Vcc == 50)
135 pccr_set_mask |= PCCR_S0_PSE|PCCR_S1_PSE;
136 if (state->flags & SS_RESET)
137 pccr_set_mask |= PCCR_S0_RST|PCCR_S1_RST;
138 if (state->flags & SS_OUTPUT_ENA)
139 pccr_set_mask |= PCCR_S0_FLT|PCCR_S1_FLT;
141 local_irq_save(flags);
142 val = sa1111_readl(s->dev->mapbase + PCCR);
143 val &= ~pccr_skt_mask;
144 val |= pccr_set_mask & pccr_skt_mask;
145 sa1111_writel(val, s->dev->mapbase + PCCR);
146 local_irq_restore(flags);
151 void sa1111_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
153 soc_pcmcia_enable_irqs(skt, irqs, ARRAY_SIZE(irqs));
156 static void sa1111_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
158 soc_pcmcia_disable_irqs(skt, irqs, ARRAY_SIZE(irqs));
161 int sa1111_pcmcia_add(struct sa1111_dev *dev, struct pcmcia_low_level *ops,
162 int (*add)(struct soc_pcmcia_socket *))
164 struct sa1111_pcmcia_socket *s;
167 ops->hw_init = sa1111_pcmcia_hw_init;
168 ops->hw_shutdown = sa1111_pcmcia_hw_shutdown;
169 ops->socket_state = sa1111_pcmcia_socket_state;
170 ops->socket_suspend = sa1111_pcmcia_socket_suspend;
172 for (i = 0; i < ops->nr; i++) {
173 s = kzalloc(sizeof(*s), GFP_KERNEL);
177 s->soc.nr = ops->first + i;
179 s->soc.socket.owner = ops->owner;
180 s->soc.socket.dev.parent = &dev->dev;
181 s->soc.socket.pci_irq = s->soc.nr ?
182 dev->irq[IDX_IRQ_S0_READY_NINT] :
183 dev->irq[IDX_IRQ_S1_READY_NINT];
188 s->next = dev_get_drvdata(&dev->dev);
189 dev_set_drvdata(&dev->dev, s);
197 static int pcmcia_probe(struct sa1111_dev *dev)
202 ret = sa1111_enable_device(dev);
206 dev_set_drvdata(&dev->dev, NULL);
208 if (!request_mem_region(dev->res.start, 512, SA1111_DRIVER_NAME(dev))) {
209 sa1111_disable_device(dev);
215 /* Initialize PCMCIA IRQs */
216 irqs[0].irq = dev->irq[IDX_IRQ_S0_CD_VALID];
217 irqs[1].irq = dev->irq[IDX_IRQ_S0_BVD1_STSCHG];
218 irqs[2].irq = dev->irq[IDX_IRQ_S1_CD_VALID];
219 irqs[3].irq = dev->irq[IDX_IRQ_S1_BVD1_STSCHG];
222 * Initialise the suspend state.
224 sa1111_writel(PCSSR_S0_SLEEP | PCSSR_S1_SLEEP, base + PCSSR);
225 sa1111_writel(PCCR_S0_FLT | PCCR_S1_FLT, base + PCCR);
227 #ifdef CONFIG_SA1100_BADGE4
228 pcmcia_badge4_init(&dev->dev);
230 #ifdef CONFIG_SA1100_JORNADA720
231 pcmcia_jornada720_init(&dev->dev);
233 #ifdef CONFIG_ARCH_LUBBOCK
234 pcmcia_lubbock_init(dev);
236 #ifdef CONFIG_ASSABET_NEPONSET
237 pcmcia_neponset_init(dev);
242 static int __devexit pcmcia_remove(struct sa1111_dev *dev)
244 struct sa1111_pcmcia_socket *next, *s = dev_get_drvdata(&dev->dev);
246 dev_set_drvdata(&dev->dev, NULL);
248 for (; s; s = next) {
250 soc_pcmcia_remove_one(&s->soc);
254 release_mem_region(dev->res.start, 512);
255 sa1111_disable_device(dev);
259 static struct sa1111_driver pcmcia_driver = {
261 .name = "sa1111-pcmcia",
263 .devid = SA1111_DEVID_PCMCIA,
264 .probe = pcmcia_probe,
265 .remove = __devexit_p(pcmcia_remove),
268 static int __init sa1111_drv_pcmcia_init(void)
270 return sa1111_driver_register(&pcmcia_driver);
273 static void __exit sa1111_drv_pcmcia_exit(void)
275 sa1111_driver_unregister(&pcmcia_driver);
278 fs_initcall(sa1111_drv_pcmcia_init);
279 module_exit(sa1111_drv_pcmcia_exit);
281 MODULE_DESCRIPTION("SA1111 PCMCIA card socket driver");
282 MODULE_LICENSE("GPL");