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>
16 #include <pcmcia/ss.h>
18 #include <mach/hardware.h>
19 #include <asm/hardware/sa1111.h>
22 #include "sa1111_generic.h"
24 static 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" },
31 static int sa1111_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
33 return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));
36 static void sa1111_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
38 soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs));
41 void sa1111_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state)
43 struct sa1111_pcmcia_socket *s = to_skt(skt);
44 unsigned long status = sa1111_readl(s->dev->mapbase + SA1111_PCSR);
48 state->detect = status & PCSR_S0_DETECT ? 0 : 1;
49 state->ready = status & PCSR_S0_READY ? 1 : 0;
50 state->bvd1 = status & PCSR_S0_BVD1 ? 1 : 0;
51 state->bvd2 = status & PCSR_S0_BVD2 ? 1 : 0;
52 state->wrprot = status & PCSR_S0_WP ? 1 : 0;
53 state->vs_3v = status & PCSR_S0_VS1 ? 0 : 1;
54 state->vs_Xv = status & PCSR_S0_VS2 ? 0 : 1;
58 state->detect = status & PCSR_S1_DETECT ? 0 : 1;
59 state->ready = status & PCSR_S1_READY ? 1 : 0;
60 state->bvd1 = status & PCSR_S1_BVD1 ? 1 : 0;
61 state->bvd2 = status & PCSR_S1_BVD2 ? 1 : 0;
62 state->wrprot = status & PCSR_S1_WP ? 1 : 0;
63 state->vs_3v = status & PCSR_S1_VS1 ? 0 : 1;
64 state->vs_Xv = status & PCSR_S1_VS2 ? 0 : 1;
69 int sa1111_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
71 struct sa1111_pcmcia_socket *s = to_skt(skt);
72 unsigned int pccr_skt_mask, pccr_set_mask, val;
77 pccr_skt_mask = PCCR_S0_RST|PCCR_S0_FLT|PCCR_S0_PWAITEN|PCCR_S0_PSE;
81 pccr_skt_mask = PCCR_S1_RST|PCCR_S1_FLT|PCCR_S1_PWAITEN|PCCR_S1_PSE;
91 pccr_set_mask |= PCCR_S0_PWAITEN|PCCR_S1_PWAITEN;
93 pccr_set_mask |= PCCR_S0_PSE|PCCR_S1_PSE;
94 if (state->flags & SS_RESET)
95 pccr_set_mask |= PCCR_S0_RST|PCCR_S1_RST;
96 if (state->flags & SS_OUTPUT_ENA)
97 pccr_set_mask |= PCCR_S0_FLT|PCCR_S1_FLT;
99 local_irq_save(flags);
100 val = sa1111_readl(s->dev->mapbase + SA1111_PCCR);
101 val &= ~pccr_skt_mask;
102 val |= pccr_set_mask & pccr_skt_mask;
103 sa1111_writel(val, s->dev->mapbase + SA1111_PCCR);
104 local_irq_restore(flags);
109 void sa1111_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
111 soc_pcmcia_enable_irqs(skt, irqs, ARRAY_SIZE(irqs));
114 static void sa1111_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
116 soc_pcmcia_disable_irqs(skt, irqs, ARRAY_SIZE(irqs));
119 int sa1111_pcmcia_add(struct sa1111_dev *dev, struct pcmcia_low_level *ops,
120 int (*add)(struct soc_pcmcia_socket *))
122 struct sa1111_pcmcia_socket *s;
125 ops->hw_init = sa1111_pcmcia_hw_init;
126 ops->hw_shutdown = sa1111_pcmcia_hw_shutdown;
127 ops->socket_state = sa1111_pcmcia_socket_state;
128 ops->socket_suspend = sa1111_pcmcia_socket_suspend;
130 for (i = 0; i < ops->nr; i++) {
131 s = kzalloc(sizeof(*s), GFP_KERNEL);
135 s->soc.nr = ops->first + i;
137 s->soc.socket.owner = ops->owner;
138 s->soc.socket.dev.parent = &dev->dev;
139 s->soc.socket.pci_irq = s->soc.nr ? IRQ_S1_READY_NINT : IRQ_S0_READY_NINT;
144 s->next = dev_get_drvdata(&dev->dev);
145 dev_set_drvdata(&dev->dev, s);
153 static int pcmcia_probe(struct sa1111_dev *dev)
157 dev_set_drvdata(&dev->dev, NULL);
159 if (!request_mem_region(dev->res.start, 512,
160 SA1111_DRIVER_NAME(dev)))
166 * Initialise the suspend state.
168 sa1111_writel(PCSSR_S0_SLEEP | PCSSR_S1_SLEEP, base + SA1111_PCSSR);
169 sa1111_writel(PCCR_S0_FLT | PCCR_S1_FLT, base + SA1111_PCCR);
171 #ifdef CONFIG_SA1100_BADGE4
172 pcmcia_badge4_init(&dev->dev);
174 #ifdef CONFIG_SA1100_JORNADA720
175 pcmcia_jornada720_init(&dev->dev);
177 #ifdef CONFIG_ARCH_LUBBOCK
178 pcmcia_lubbock_init(dev);
180 #ifdef CONFIG_ASSABET_NEPONSET
181 pcmcia_neponset_init(dev);
186 static int __devexit pcmcia_remove(struct sa1111_dev *dev)
188 struct sa1111_pcmcia_socket *next, *s = dev_get_drvdata(&dev->dev);
190 dev_set_drvdata(&dev->dev, NULL);
192 for (; next = s->next, s; s = next) {
193 soc_pcmcia_remove_one(&s->soc);
197 release_mem_region(dev->res.start, 512);
201 static int pcmcia_suspend(struct sa1111_dev *dev, pm_message_t state)
203 return pcmcia_socket_dev_suspend(&dev->dev);
206 static int pcmcia_resume(struct sa1111_dev *dev)
208 return pcmcia_socket_dev_resume(&dev->dev);
211 static struct sa1111_driver pcmcia_driver = {
213 .name = "sa1111-pcmcia",
215 .devid = SA1111_DEVID_PCMCIA,
216 .probe = pcmcia_probe,
217 .remove = __devexit_p(pcmcia_remove),
218 .suspend = pcmcia_suspend,
219 .resume = pcmcia_resume,
222 static int __init sa1111_drv_pcmcia_init(void)
224 return sa1111_driver_register(&pcmcia_driver);
227 static void __exit sa1111_drv_pcmcia_exit(void)
229 sa1111_driver_unregister(&pcmcia_driver);
232 fs_initcall(sa1111_drv_pcmcia_init);
233 module_exit(sa1111_drv_pcmcia_exit);
235 MODULE_DESCRIPTION("SA1111 PCMCIA card socket driver");
236 MODULE_LICENSE("GPL");