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1da177e4 LT |
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/config.h> | |
9 | #include <linux/module.h> | |
10 | #include <linux/kernel.h> | |
11 | #include <linux/ioport.h> | |
12 | #include <linux/device.h> | |
13 | #include <linux/interrupt.h> | |
14 | #include <linux/init.h> | |
15 | ||
16 | #include <pcmcia/ss.h> | |
17 | ||
18 | #include <asm/hardware.h> | |
19 | #include <asm/hardware/sa1111.h> | |
20 | #include <asm/io.h> | |
21 | #include <asm/irq.h> | |
22 | ||
23 | #include "sa1111_generic.h" | |
24 | ||
25 | static struct pcmcia_irqs irqs[] = { | |
26 | { 0, IRQ_S0_CD_VALID, "SA1111 PCMCIA card detect" }, | |
27 | { 0, IRQ_S0_BVD1_STSCHG, "SA1111 PCMCIA BVD1" }, | |
28 | { 1, IRQ_S1_CD_VALID, "SA1111 CF card detect" }, | |
29 | { 1, IRQ_S1_BVD1_STSCHG, "SA1111 CF BVD1" }, | |
30 | }; | |
31 | ||
32 | int sa1111_pcmcia_hw_init(struct soc_pcmcia_socket *skt) | |
33 | { | |
34 | if (skt->irq == NO_IRQ) | |
35 | skt->irq = skt->nr ? IRQ_S1_READY_NINT : IRQ_S0_READY_NINT; | |
36 | ||
37 | return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs)); | |
38 | } | |
39 | ||
40 | void sa1111_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) | |
41 | { | |
42 | soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs)); | |
43 | } | |
44 | ||
45 | void sa1111_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state) | |
46 | { | |
47 | struct sa1111_dev *sadev = SA1111_DEV(skt->dev); | |
48 | unsigned long status = sa1111_readl(sadev->mapbase + SA1111_PCSR); | |
49 | ||
50 | switch (skt->nr) { | |
51 | case 0: | |
52 | state->detect = status & PCSR_S0_DETECT ? 0 : 1; | |
53 | state->ready = status & PCSR_S0_READY ? 1 : 0; | |
54 | state->bvd1 = status & PCSR_S0_BVD1 ? 1 : 0; | |
55 | state->bvd2 = status & PCSR_S0_BVD2 ? 1 : 0; | |
56 | state->wrprot = status & PCSR_S0_WP ? 1 : 0; | |
57 | state->vs_3v = status & PCSR_S0_VS1 ? 0 : 1; | |
58 | state->vs_Xv = status & PCSR_S0_VS2 ? 0 : 1; | |
59 | break; | |
60 | ||
61 | case 1: | |
62 | state->detect = status & PCSR_S1_DETECT ? 0 : 1; | |
63 | state->ready = status & PCSR_S1_READY ? 1 : 0; | |
64 | state->bvd1 = status & PCSR_S1_BVD1 ? 1 : 0; | |
65 | state->bvd2 = status & PCSR_S1_BVD2 ? 1 : 0; | |
66 | state->wrprot = status & PCSR_S1_WP ? 1 : 0; | |
67 | state->vs_3v = status & PCSR_S1_VS1 ? 0 : 1; | |
68 | state->vs_Xv = status & PCSR_S1_VS2 ? 0 : 1; | |
69 | break; | |
70 | } | |
71 | } | |
72 | ||
73 | int sa1111_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state) | |
74 | { | |
75 | struct sa1111_dev *sadev = SA1111_DEV(skt->dev); | |
76 | unsigned int pccr_skt_mask, pccr_set_mask, val; | |
77 | unsigned long flags; | |
78 | ||
79 | switch (skt->nr) { | |
80 | case 0: | |
81 | pccr_skt_mask = PCCR_S0_RST|PCCR_S0_FLT|PCCR_S0_PWAITEN|PCCR_S0_PSE; | |
82 | break; | |
83 | ||
84 | case 1: | |
85 | pccr_skt_mask = PCCR_S1_RST|PCCR_S1_FLT|PCCR_S1_PWAITEN|PCCR_S1_PSE; | |
86 | break; | |
87 | ||
88 | default: | |
89 | return -1; | |
90 | } | |
91 | ||
92 | pccr_set_mask = 0; | |
93 | ||
94 | if (state->Vcc != 0) | |
95 | pccr_set_mask |= PCCR_S0_PWAITEN|PCCR_S1_PWAITEN; | |
96 | if (state->Vcc == 50) | |
97 | pccr_set_mask |= PCCR_S0_PSE|PCCR_S1_PSE; | |
98 | if (state->flags & SS_RESET) | |
99 | pccr_set_mask |= PCCR_S0_RST|PCCR_S1_RST; | |
100 | if (state->flags & SS_OUTPUT_ENA) | |
101 | pccr_set_mask |= PCCR_S0_FLT|PCCR_S1_FLT; | |
102 | ||
103 | local_irq_save(flags); | |
104 | val = sa1111_readl(sadev->mapbase + SA1111_PCCR); | |
105 | val &= ~pccr_skt_mask; | |
106 | val |= pccr_set_mask & pccr_skt_mask; | |
107 | sa1111_writel(val, sadev->mapbase + SA1111_PCCR); | |
108 | local_irq_restore(flags); | |
109 | ||
110 | return 0; | |
111 | } | |
112 | ||
113 | void sa1111_pcmcia_socket_init(struct soc_pcmcia_socket *skt) | |
114 | { | |
115 | soc_pcmcia_enable_irqs(skt, irqs, ARRAY_SIZE(irqs)); | |
116 | } | |
117 | ||
118 | void sa1111_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt) | |
119 | { | |
120 | soc_pcmcia_disable_irqs(skt, irqs, ARRAY_SIZE(irqs)); | |
121 | } | |
122 | ||
123 | static int pcmcia_probe(struct sa1111_dev *dev) | |
124 | { | |
125 | char *base; | |
126 | ||
127 | if (!request_mem_region(dev->res.start, 512, | |
128 | SA1111_DRIVER_NAME(dev))) | |
129 | return -EBUSY; | |
130 | ||
131 | base = dev->mapbase; | |
132 | ||
133 | /* | |
134 | * Initialise the suspend state. | |
135 | */ | |
136 | sa1111_writel(PCSSR_S0_SLEEP | PCSSR_S1_SLEEP, base + SA1111_PCSSR); | |
137 | sa1111_writel(PCCR_S0_FLT | PCCR_S1_FLT, base + SA1111_PCCR); | |
138 | ||
139 | #ifdef CONFIG_SA1100_BADGE4 | |
140 | pcmcia_badge4_init(&dev->dev); | |
141 | #endif | |
142 | #ifdef CONFIG_SA1100_JORNADA720 | |
143 | pcmcia_jornada720_init(&dev->dev); | |
144 | #endif | |
145 | #ifdef CONFIG_ARCH_LUBBOCK | |
146 | pcmcia_lubbock_init(dev); | |
147 | #endif | |
148 | #ifdef CONFIG_ASSABET_NEPONSET | |
149 | pcmcia_neponset_init(dev); | |
150 | #endif | |
151 | return 0; | |
152 | } | |
153 | ||
154 | static int __devexit pcmcia_remove(struct sa1111_dev *dev) | |
155 | { | |
156 | soc_common_drv_pcmcia_remove(&dev->dev); | |
157 | release_mem_region(dev->res.start, 512); | |
158 | return 0; | |
159 | } | |
160 | ||
8bf28030 | 161 | static int pcmcia_suspend(struct sa1111_dev *dev, pm_message_t state) |
1da177e4 LT |
162 | { |
163 | return pcmcia_socket_dev_suspend(&dev->dev, state); | |
164 | } | |
165 | ||
166 | static int pcmcia_resume(struct sa1111_dev *dev) | |
167 | { | |
168 | return pcmcia_socket_dev_resume(&dev->dev); | |
169 | } | |
170 | ||
171 | static struct sa1111_driver pcmcia_driver = { | |
172 | .drv = { | |
173 | .name = "sa1111-pcmcia", | |
174 | }, | |
175 | .devid = SA1111_DEVID_PCMCIA, | |
176 | .probe = pcmcia_probe, | |
177 | .remove = __devexit_p(pcmcia_remove), | |
178 | .suspend = pcmcia_suspend, | |
179 | .resume = pcmcia_resume, | |
180 | }; | |
181 | ||
182 | static int __init sa1111_drv_pcmcia_init(void) | |
183 | { | |
184 | return sa1111_driver_register(&pcmcia_driver); | |
185 | } | |
186 | ||
187 | static void __exit sa1111_drv_pcmcia_exit(void) | |
188 | { | |
189 | sa1111_driver_unregister(&pcmcia_driver); | |
190 | } | |
191 | ||
f36598ae | 192 | fs_initcall(sa1111_drv_pcmcia_init); |
1da177e4 LT |
193 | module_exit(sa1111_drv_pcmcia_exit); |
194 | ||
195 | MODULE_DESCRIPTION("SA1111 PCMCIA card socket driver"); | |
196 | MODULE_LICENSE("GPL"); |