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Commit | Line | Data |
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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 | */ | |
1da177e4 LT |
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> | |
99730225 | 14 | #include <linux/io.h> |
5a0e3ad6 | 15 | #include <linux/slab.h> |
1da177e4 LT |
16 | |
17 | #include <pcmcia/ss.h> | |
18 | ||
a09e64fb | 19 | #include <mach/hardware.h> |
1da177e4 | 20 | #include <asm/hardware/sa1111.h> |
3f8df892 | 21 | #include <asm/mach-types.h> |
1da177e4 LT |
22 | #include <asm/irq.h> |
23 | ||
24 | #include "sa1111_generic.h" | |
25 | ||
ea8c00ac RK |
26 | /* |
27 | * These are offsets from the above base. | |
28 | */ | |
29 | #define PCCR 0x0000 | |
30 | #define PCSSR 0x0004 | |
31 | #define PCSR 0x0008 | |
32 | ||
33 | #define PCSR_S0_READY (1<<0) | |
34 | #define PCSR_S1_READY (1<<1) | |
35 | #define PCSR_S0_DETECT (1<<2) | |
36 | #define PCSR_S1_DETECT (1<<3) | |
37 | #define PCSR_S0_VS1 (1<<4) | |
38 | #define PCSR_S0_VS2 (1<<5) | |
39 | #define PCSR_S1_VS1 (1<<6) | |
40 | #define PCSR_S1_VS2 (1<<7) | |
41 | #define PCSR_S0_WP (1<<8) | |
42 | #define PCSR_S1_WP (1<<9) | |
43 | #define PCSR_S0_BVD1 (1<<10) | |
44 | #define PCSR_S0_BVD2 (1<<11) | |
45 | #define PCSR_S1_BVD1 (1<<12) | |
46 | #define PCSR_S1_BVD2 (1<<13) | |
47 | ||
48 | #define PCCR_S0_RST (1<<0) | |
49 | #define PCCR_S1_RST (1<<1) | |
50 | #define PCCR_S0_FLT (1<<2) | |
51 | #define PCCR_S1_FLT (1<<3) | |
52 | #define PCCR_S0_PWAITEN (1<<4) | |
53 | #define PCCR_S1_PWAITEN (1<<5) | |
54 | #define PCCR_S0_PSE (1<<6) | |
55 | #define PCCR_S1_PSE (1<<7) | |
56 | ||
57 | #define PCSSR_S0_SLEEP (1<<0) | |
58 | #define PCSSR_S1_SLEEP (1<<1) | |
59 | ||
08fa1590 EM |
60 | #define IDX_IRQ_S0_READY_NINT (0) |
61 | #define IDX_IRQ_S0_CD_VALID (1) | |
62 | #define IDX_IRQ_S0_BVD1_STSCHG (2) | |
63 | #define IDX_IRQ_S1_READY_NINT (3) | |
64 | #define IDX_IRQ_S1_CD_VALID (4) | |
65 | #define IDX_IRQ_S1_BVD1_STSCHG (5) | |
66 | ||
1da177e4 LT |
67 | void sa1111_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state) |
68 | { | |
701a5dc0 | 69 | struct sa1111_pcmcia_socket *s = to_skt(skt); |
ea8c00ac | 70 | unsigned long status = sa1111_readl(s->dev->mapbase + PCSR); |
1da177e4 LT |
71 | |
72 | switch (skt->nr) { | |
73 | case 0: | |
74 | state->detect = status & PCSR_S0_DETECT ? 0 : 1; | |
75 | state->ready = status & PCSR_S0_READY ? 1 : 0; | |
76 | state->bvd1 = status & PCSR_S0_BVD1 ? 1 : 0; | |
77 | state->bvd2 = status & PCSR_S0_BVD2 ? 1 : 0; | |
78 | state->wrprot = status & PCSR_S0_WP ? 1 : 0; | |
79 | state->vs_3v = status & PCSR_S0_VS1 ? 0 : 1; | |
80 | state->vs_Xv = status & PCSR_S0_VS2 ? 0 : 1; | |
81 | break; | |
82 | ||
83 | case 1: | |
84 | state->detect = status & PCSR_S1_DETECT ? 0 : 1; | |
85 | state->ready = status & PCSR_S1_READY ? 1 : 0; | |
86 | state->bvd1 = status & PCSR_S1_BVD1 ? 1 : 0; | |
87 | state->bvd2 = status & PCSR_S1_BVD2 ? 1 : 0; | |
88 | state->wrprot = status & PCSR_S1_WP ? 1 : 0; | |
89 | state->vs_3v = status & PCSR_S1_VS1 ? 0 : 1; | |
90 | state->vs_Xv = status & PCSR_S1_VS2 ? 0 : 1; | |
91 | break; | |
92 | } | |
93 | } | |
94 | ||
95 | int sa1111_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state) | |
96 | { | |
701a5dc0 | 97 | struct sa1111_pcmcia_socket *s = to_skt(skt); |
1da177e4 LT |
98 | unsigned int pccr_skt_mask, pccr_set_mask, val; |
99 | unsigned long flags; | |
100 | ||
101 | switch (skt->nr) { | |
102 | case 0: | |
103 | pccr_skt_mask = PCCR_S0_RST|PCCR_S0_FLT|PCCR_S0_PWAITEN|PCCR_S0_PSE; | |
104 | break; | |
105 | ||
106 | case 1: | |
107 | pccr_skt_mask = PCCR_S1_RST|PCCR_S1_FLT|PCCR_S1_PWAITEN|PCCR_S1_PSE; | |
108 | break; | |
109 | ||
110 | default: | |
111 | return -1; | |
112 | } | |
113 | ||
114 | pccr_set_mask = 0; | |
115 | ||
116 | if (state->Vcc != 0) | |
117 | pccr_set_mask |= PCCR_S0_PWAITEN|PCCR_S1_PWAITEN; | |
118 | if (state->Vcc == 50) | |
119 | pccr_set_mask |= PCCR_S0_PSE|PCCR_S1_PSE; | |
120 | if (state->flags & SS_RESET) | |
121 | pccr_set_mask |= PCCR_S0_RST|PCCR_S1_RST; | |
122 | if (state->flags & SS_OUTPUT_ENA) | |
123 | pccr_set_mask |= PCCR_S0_FLT|PCCR_S1_FLT; | |
124 | ||
125 | local_irq_save(flags); | |
ea8c00ac | 126 | val = sa1111_readl(s->dev->mapbase + PCCR); |
1da177e4 LT |
127 | val &= ~pccr_skt_mask; |
128 | val |= pccr_set_mask & pccr_skt_mask; | |
ea8c00ac | 129 | sa1111_writel(val, s->dev->mapbase + PCCR); |
1da177e4 LT |
130 | local_irq_restore(flags); |
131 | ||
132 | return 0; | |
133 | } | |
134 | ||
701a5dc0 RKAL |
135 | int sa1111_pcmcia_add(struct sa1111_dev *dev, struct pcmcia_low_level *ops, |
136 | int (*add)(struct soc_pcmcia_socket *)) | |
137 | { | |
138 | struct sa1111_pcmcia_socket *s; | |
321ae964 | 139 | struct clk *clk; |
701a5dc0 RKAL |
140 | int i, ret = 0; |
141 | ||
321ae964 RK |
142 | clk = devm_clk_get(&dev->dev, NULL); |
143 | if (IS_ERR(clk)) | |
144 | return PTR_ERR(clk); | |
145 | ||
dabd1468 | 146 | ops->socket_state = sa1111_pcmcia_socket_state; |
dabd1468 | 147 | |
701a5dc0 RKAL |
148 | for (i = 0; i < ops->nr; i++) { |
149 | s = kzalloc(sizeof(*s), GFP_KERNEL); | |
150 | if (!s) | |
151 | return -ENOMEM; | |
152 | ||
153 | s->soc.nr = ops->first + i; | |
321ae964 RK |
154 | s->soc.clk = clk; |
155 | ||
e0d21178 | 156 | soc_pcmcia_init_one(&s->soc, ops, &dev->dev); |
701a5dc0 | 157 | s->dev = dev; |
81f33c65 RK |
158 | if (s->soc.nr) { |
159 | s->soc.socket.pci_irq = dev->irq[IDX_IRQ_S1_READY_NINT]; | |
160 | s->soc.stat[SOC_STAT_CD].irq = dev->irq[IDX_IRQ_S1_CD_VALID]; | |
161 | s->soc.stat[SOC_STAT_CD].name = "SA1111 CF card detect"; | |
162 | s->soc.stat[SOC_STAT_BVD1].irq = dev->irq[IDX_IRQ_S1_BVD1_STSCHG]; | |
163 | s->soc.stat[SOC_STAT_BVD1].name = "SA1111 CF BVD1"; | |
164 | } else { | |
165 | s->soc.socket.pci_irq = dev->irq[IDX_IRQ_S0_READY_NINT]; | |
166 | s->soc.stat[SOC_STAT_CD].irq = dev->irq[IDX_IRQ_S0_CD_VALID]; | |
167 | s->soc.stat[SOC_STAT_CD].name = "SA1111 PCMCIA card detect"; | |
168 | s->soc.stat[SOC_STAT_BVD1].irq = dev->irq[IDX_IRQ_S0_BVD1_STSCHG]; | |
169 | s->soc.stat[SOC_STAT_BVD1].name = "SA1111 PCMCIA BVD1"; | |
170 | } | |
701a5dc0 RKAL |
171 | |
172 | ret = add(&s->soc); | |
173 | if (ret == 0) { | |
174 | s->next = dev_get_drvdata(&dev->dev); | |
175 | dev_set_drvdata(&dev->dev, s); | |
176 | } else | |
177 | kfree(s); | |
178 | } | |
179 | ||
180 | return ret; | |
181 | } | |
182 | ||
1da177e4 LT |
183 | static int pcmcia_probe(struct sa1111_dev *dev) |
184 | { | |
f339ab3d | 185 | void __iomem *base; |
ae99ddbc RK |
186 | int ret; |
187 | ||
188 | ret = sa1111_enable_device(dev); | |
189 | if (ret) | |
190 | return ret; | |
1da177e4 | 191 | |
701a5dc0 RKAL |
192 | dev_set_drvdata(&dev->dev, NULL); |
193 | ||
ae99ddbc RK |
194 | if (!request_mem_region(dev->res.start, 512, SA1111_DRIVER_NAME(dev))) { |
195 | sa1111_disable_device(dev); | |
1da177e4 | 196 | return -EBUSY; |
ae99ddbc | 197 | } |
1da177e4 LT |
198 | |
199 | base = dev->mapbase; | |
200 | ||
201 | /* | |
202 | * Initialise the suspend state. | |
203 | */ | |
ea8c00ac RK |
204 | sa1111_writel(PCSSR_S0_SLEEP | PCSSR_S1_SLEEP, base + PCSSR); |
205 | sa1111_writel(PCCR_S0_FLT | PCCR_S1_FLT, base + PCCR); | |
1da177e4 | 206 | |
3f8df892 | 207 | ret = -ENODEV; |
1da177e4 | 208 | #ifdef CONFIG_SA1100_BADGE4 |
3f8df892 RK |
209 | if (machine_is_badge4()) |
210 | ret = pcmcia_badge4_init(dev); | |
1da177e4 LT |
211 | #endif |
212 | #ifdef CONFIG_SA1100_JORNADA720 | |
3f8df892 RK |
213 | if (machine_is_jornada720()) |
214 | ret = pcmcia_jornada720_init(dev); | |
1da177e4 LT |
215 | #endif |
216 | #ifdef CONFIG_ARCH_LUBBOCK | |
3f8df892 RK |
217 | if (machine_is_lubbock()) |
218 | ret = pcmcia_lubbock_init(dev); | |
1da177e4 LT |
219 | #endif |
220 | #ifdef CONFIG_ASSABET_NEPONSET | |
3f8df892 RK |
221 | if (machine_is_assabet()) |
222 | ret = pcmcia_neponset_init(dev); | |
1da177e4 | 223 | #endif |
3f8df892 RK |
224 | |
225 | if (ret) { | |
226 | release_mem_region(dev->res.start, 512); | |
227 | sa1111_disable_device(dev); | |
228 | } | |
229 | ||
230 | return ret; | |
1da177e4 LT |
231 | } |
232 | ||
e765a02c | 233 | static int pcmcia_remove(struct sa1111_dev *dev) |
1da177e4 | 234 | { |
701a5dc0 | 235 | struct sa1111_pcmcia_socket *next, *s = dev_get_drvdata(&dev->dev); |
be85458e RKAL |
236 | |
237 | dev_set_drvdata(&dev->dev, NULL); | |
238 | ||
171cf94c RK |
239 | for (; s; s = next) { |
240 | next = s->next; | |
701a5dc0 RKAL |
241 | soc_pcmcia_remove_one(&s->soc); |
242 | kfree(s); | |
243 | } | |
be85458e | 244 | |
1da177e4 | 245 | release_mem_region(dev->res.start, 512); |
ae99ddbc | 246 | sa1111_disable_device(dev); |
1da177e4 LT |
247 | return 0; |
248 | } | |
249 | ||
1da177e4 LT |
250 | static struct sa1111_driver pcmcia_driver = { |
251 | .drv = { | |
252 | .name = "sa1111-pcmcia", | |
253 | }, | |
254 | .devid = SA1111_DEVID_PCMCIA, | |
255 | .probe = pcmcia_probe, | |
96364e3a | 256 | .remove = pcmcia_remove, |
1da177e4 LT |
257 | }; |
258 | ||
259 | static int __init sa1111_drv_pcmcia_init(void) | |
260 | { | |
261 | return sa1111_driver_register(&pcmcia_driver); | |
262 | } | |
263 | ||
264 | static void __exit sa1111_drv_pcmcia_exit(void) | |
265 | { | |
266 | sa1111_driver_unregister(&pcmcia_driver); | |
267 | } | |
268 | ||
f36598ae | 269 | fs_initcall(sa1111_drv_pcmcia_init); |
1da177e4 LT |
270 | module_exit(sa1111_drv_pcmcia_exit); |
271 | ||
272 | MODULE_DESCRIPTION("SA1111 PCMCIA card socket driver"); | |
273 | MODULE_LICENSE("GPL"); |