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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/mach-types.h>
22#include <asm/irq.h>
23
24#include "sa1111_generic.h"
25
26
27
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
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
67void sa1111_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state)
68{
69 struct sa1111_pcmcia_socket *s = to_skt(skt);
70 unsigned long status = sa1111_readl(s->dev->mapbase + PCSR);
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
95int sa1111_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
96{
97 struct sa1111_pcmcia_socket *s = to_skt(skt);
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);
126 val = sa1111_readl(s->dev->mapbase + PCCR);
127 val &= ~pccr_skt_mask;
128 val |= pccr_set_mask & pccr_skt_mask;
129 sa1111_writel(val, s->dev->mapbase + PCCR);
130 local_irq_restore(flags);
131
132 return 0;
133}
134
135int 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;
139 struct clk *clk;
140 int i, ret = 0;
141
142 clk = devm_clk_get(&dev->dev, NULL);
143 if (IS_ERR(clk))
144 return PTR_ERR(clk);
145
146 ops->socket_state = sa1111_pcmcia_socket_state;
147
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;
154 s->soc.clk = clk;
155
156 soc_pcmcia_init_one(&s->soc, ops, &dev->dev);
157 s->dev = dev;
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 }
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
183static int pcmcia_probe(struct sa1111_dev *dev)
184{
185 void __iomem *base;
186 int ret;
187
188 ret = sa1111_enable_device(dev);
189 if (ret)
190 return ret;
191
192 dev_set_drvdata(&dev->dev, NULL);
193
194 if (!request_mem_region(dev->res.start, 512, SA1111_DRIVER_NAME(dev))) {
195 sa1111_disable_device(dev);
196 return -EBUSY;
197 }
198
199 base = dev->mapbase;
200
201
202
203
204 sa1111_writel(PCSSR_S0_SLEEP | PCSSR_S1_SLEEP, base + PCSSR);
205 sa1111_writel(PCCR_S0_FLT | PCCR_S1_FLT, base + PCCR);
206
207 ret = -ENODEV;
208#ifdef CONFIG_SA1100_BADGE4
209 if (machine_is_badge4())
210 ret = pcmcia_badge4_init(dev);
211#endif
212#ifdef CONFIG_SA1100_JORNADA720
213 if (machine_is_jornada720())
214 ret = pcmcia_jornada720_init(dev);
215#endif
216#ifdef CONFIG_ARCH_LUBBOCK
217 if (machine_is_lubbock())
218 ret = pcmcia_lubbock_init(dev);
219#endif
220#ifdef CONFIG_ASSABET_NEPONSET
221 if (machine_is_assabet())
222 ret = pcmcia_neponset_init(dev);
223#endif
224
225 if (ret) {
226 release_mem_region(dev->res.start, 512);
227 sa1111_disable_device(dev);
228 }
229
230 return ret;
231}
232
233static int pcmcia_remove(struct sa1111_dev *dev)
234{
235 struct sa1111_pcmcia_socket *next, *s = dev_get_drvdata(&dev->dev);
236
237 dev_set_drvdata(&dev->dev, NULL);
238
239 for (; s; s = next) {
240 next = s->next;
241 soc_pcmcia_remove_one(&s->soc);
242 kfree(s);
243 }
244
245 release_mem_region(dev->res.start, 512);
246 sa1111_disable_device(dev);
247 return 0;
248}
249
250static struct sa1111_driver pcmcia_driver = {
251 .drv = {
252 .name = "sa1111-pcmcia",
253 },
254 .devid = SA1111_DEVID_PCMCIA,
255 .probe = pcmcia_probe,
256 .remove = pcmcia_remove,
257};
258
259static int __init sa1111_drv_pcmcia_init(void)
260{
261 return sa1111_driver_register(&pcmcia_driver);
262}
263
264static void __exit sa1111_drv_pcmcia_exit(void)
265{
266 sa1111_driver_unregister(&pcmcia_driver);
267}
268
269fs_initcall(sa1111_drv_pcmcia_init);
270module_exit(sa1111_drv_pcmcia_exit);
271
272MODULE_DESCRIPTION("SA1111 PCMCIA card socket driver");
273MODULE_LICENSE("GPL");
274
