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1/*
2 * Sharp SL-C7xx Series PCMCIA routines
3 *
4 * Copyright (c) 2004-2005 Richard Purdie
5 *
6 * Based on Sharp's 2.4 kernel patches and pxa2xx_mainstone.c
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 *
12 */
13
14#include <linux/module.h>
15#include <linux/init.h>
16#include <linux/kernel.h>
17#include <linux/errno.h>
18#include <linux/interrupt.h>
19#include <linux/platform_device.h>
20
21#include <asm/mach-types.h>
22#include <mach/hardware.h>
23#include <asm/irq.h>
24#include <asm/hardware/scoop.h>
25
26#include "soc_common.h"
27
28#define NO_KEEP_VS 0x0001
29#define SCOOP_DEV platform_scoop_config->devs
30
31static void sharpsl_pcmcia_init_reset(struct soc_pcmcia_socket *skt)
32{
33 struct scoop_pcmcia_dev *scoopdev = &SCOOP_DEV[skt->nr];
34
35 reset_scoop(scoopdev->dev);
36
37 /* Shared power controls need to be handled carefully */
38 if (platform_scoop_config->power_ctrl)
39 platform_scoop_config->power_ctrl(scoopdev->dev, 0x0000, skt->nr);
40 else
41 write_scoop_reg(scoopdev->dev, SCOOP_CPR, 0x0000);
42
43 scoopdev->keep_vs = NO_KEEP_VS;
44 scoopdev->keep_rd = 0;
45}
46
47static int sharpsl_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
48{
49 int ret;
50
51 /* Register interrupts */
52 if (SCOOP_DEV[skt->nr].cd_irq >= 0) {
53 struct pcmcia_irqs cd_irq;
54
55 cd_irq.sock = skt->nr;
56 cd_irq.irq = SCOOP_DEV[skt->nr].cd_irq;
57 cd_irq.str = SCOOP_DEV[skt->nr].cd_irq_str;
58 ret = soc_pcmcia_request_irqs(skt, &cd_irq, 1);
59
60 if (ret) {
61 printk(KERN_ERR "Request for Compact Flash IRQ failed\n");
62 return ret;
63 }
64 }
65
66 skt->socket.pci_irq = SCOOP_DEV[skt->nr].irq;
67
68 return 0;
69}
70
71static void sharpsl_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
72{
73 if (SCOOP_DEV[skt->nr].cd_irq >= 0) {
74 struct pcmcia_irqs cd_irq;
75
76 cd_irq.sock = skt->nr;
77 cd_irq.irq = SCOOP_DEV[skt->nr].cd_irq;
78 cd_irq.str = SCOOP_DEV[skt->nr].cd_irq_str;
79 soc_pcmcia_free_irqs(skt, &cd_irq, 1);
80 }
81}
82
83
84static void sharpsl_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
85 struct pcmcia_state *state)
86{
87 unsigned short cpr, csr;
88 struct device *scoop = SCOOP_DEV[skt->nr].dev;
89
90 cpr = read_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_CPR);
91
92 write_scoop_reg(scoop, SCOOP_IRM, 0x00FF);
93 write_scoop_reg(scoop, SCOOP_ISR, 0x0000);
94 write_scoop_reg(scoop, SCOOP_IRM, 0x0000);
95 csr = read_scoop_reg(scoop, SCOOP_CSR);
96 if (csr & 0x0004) {
97 /* card eject */
98 write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
99 SCOOP_DEV[skt->nr].keep_vs = NO_KEEP_VS;
100 }
101 else if (!(SCOOP_DEV[skt->nr].keep_vs & NO_KEEP_VS)) {
102 /* keep vs1,vs2 */
103 write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
104 csr |= SCOOP_DEV[skt->nr].keep_vs;
105 }
106 else if (cpr & 0x0003) {
107 /* power on */
108 write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
109 SCOOP_DEV[skt->nr].keep_vs = (csr & 0x00C0);
110 }
111 else {
112 /* card detect */
113 if ((machine_is_spitz() || machine_is_borzoi()) && skt->nr == 1) {
114 write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
115 } else {
116 write_scoop_reg(scoop, SCOOP_CDR, 0x0002);
117 }
118 }
119
120 state->detect = (csr & 0x0004) ? 0 : 1;
121 state->ready = (csr & 0x0002) ? 1 : 0;
122 state->bvd1 = (csr & 0x0010) ? 1 : 0;
123 state->bvd2 = (csr & 0x0020) ? 1 : 0;
124 state->wrprot = (csr & 0x0008) ? 1 : 0;
125 state->vs_3v = (csr & 0x0040) ? 0 : 1;
126 state->vs_Xv = (csr & 0x0080) ? 0 : 1;
127
128 if ((cpr & 0x0080) && ((cpr & 0x8040) != 0x8040)) {
129 printk(KERN_ERR "sharpsl_pcmcia_socket_state(): CPR=%04X, Low voltage!\n", cpr);
130 }
131}
132
133
134static int sharpsl_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
135 const socket_state_t *state)
136{
137 unsigned long flags;
138 struct device *scoop = SCOOP_DEV[skt->nr].dev;
139
140 unsigned short cpr, ncpr, ccr, nccr, mcr, nmcr, imr, nimr;
141
142 switch (state->Vcc) {
143 case 0: break;
144 case 33: break;
145 case 50: break;
146 default:
147 printk(KERN_ERR "sharpsl_pcmcia_configure_socket(): bad Vcc %u\n", state->Vcc);
148 return -1;
149 }
150
151 if ((state->Vpp!=state->Vcc) && (state->Vpp!=0)) {
152 printk(KERN_ERR "CF slot cannot support Vpp %u\n", state->Vpp);
153 return -1;
154 }
155
156 local_irq_save(flags);
157
158 nmcr = (mcr = read_scoop_reg(scoop, SCOOP_MCR)) & ~0x0010;
159 ncpr = (cpr = read_scoop_reg(scoop, SCOOP_CPR)) & ~0x0083;
160 nccr = (ccr = read_scoop_reg(scoop, SCOOP_CCR)) & ~0x0080;
161 nimr = (imr = read_scoop_reg(scoop, SCOOP_IMR)) & ~0x003E;
162
163 if ((machine_is_spitz() || machine_is_borzoi() || machine_is_akita()) && skt->nr == 0) {
164 ncpr |= (state->Vcc == 33) ? 0x0002 :
165 (state->Vcc == 50) ? 0x0002 : 0;
166 } else {
167 ncpr |= (state->Vcc == 33) ? 0x0001 :
168 (state->Vcc == 50) ? 0x0002 : 0;
169 }
170 nmcr |= (state->flags&SS_IOCARD) ? 0x0010 : 0;
171 ncpr |= (state->flags&SS_OUTPUT_ENA) ? 0x0080 : 0;
172 nccr |= (state->flags&SS_RESET)? 0x0080: 0;
173 nimr |= ((skt->status&SS_DETECT) ? 0x0004 : 0)|
174 ((skt->status&SS_READY) ? 0x0002 : 0)|
175 ((skt->status&SS_BATDEAD)? 0x0010 : 0)|
176 ((skt->status&SS_BATWARN)? 0x0020 : 0)|
177 ((skt->status&SS_STSCHG) ? 0x0010 : 0)|
178 ((skt->status&SS_WRPROT) ? 0x0008 : 0);
179
180 if (!(ncpr & 0x0003)) {
181 SCOOP_DEV[skt->nr].keep_rd = 0;
182 } else if (!SCOOP_DEV[skt->nr].keep_rd) {
183 if (nccr & 0x0080)
184 SCOOP_DEV[skt->nr].keep_rd = 1;
185 else
186 nccr |= 0x0080;
187 }
188
189 if (mcr != nmcr)
190 write_scoop_reg(scoop, SCOOP_MCR, nmcr);
191 if (cpr != ncpr) {
192 if (platform_scoop_config->power_ctrl)
193 platform_scoop_config->power_ctrl(scoop, ncpr , skt->nr);
194 else
195 write_scoop_reg(scoop, SCOOP_CPR, ncpr);
196 }
197 if (ccr != nccr)
198 write_scoop_reg(scoop, SCOOP_CCR, nccr);
199 if (imr != nimr)
200 write_scoop_reg(scoop, SCOOP_IMR, nimr);
201
202 local_irq_restore(flags);
203
204 return 0;
205}
206
207static void sharpsl_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
208{
209 sharpsl_pcmcia_init_reset(skt);
210
211 /* Enable interrupt */
212 write_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_IMR, 0x00C0);
213 write_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_MCR, 0x0101);
214 SCOOP_DEV[skt->nr].keep_vs = NO_KEEP_VS;
215}
216
217static void sharpsl_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
218{
219 sharpsl_pcmcia_init_reset(skt);
220}
221
222static struct pcmcia_low_level sharpsl_pcmcia_ops __initdata = {
223 .owner = THIS_MODULE,
224 .hw_init = sharpsl_pcmcia_hw_init,
225 .hw_shutdown = sharpsl_pcmcia_hw_shutdown,
226 .socket_state = sharpsl_pcmcia_socket_state,
227 .configure_socket = sharpsl_pcmcia_configure_socket,
228 .socket_init = sharpsl_pcmcia_socket_init,
229 .socket_suspend = sharpsl_pcmcia_socket_suspend,
230 .first = 0,
231 .nr = 0,
232};
233
234#ifdef CONFIG_SA1100_COLLIE
235#include "sa11xx_base.h"
236
237int __devinit pcmcia_collie_init(struct device *dev)
238{
239 int ret = -ENODEV;
240
241 if (machine_is_collie())
242 ret = sa11xx_drv_pcmcia_probe(dev, &sharpsl_pcmcia_ops, 0, 1);
243
244 return ret;
245}
246
247#else
248
249static struct platform_device *sharpsl_pcmcia_device;
250
251static int __init sharpsl_pcmcia_init(void)
252{
253 int ret;
254
255 if (!platform_scoop_config)
256 return -ENODEV;
257
258 sharpsl_pcmcia_ops.nr = platform_scoop_config->num_devs;
259 sharpsl_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
260
261 if (!sharpsl_pcmcia_device)
262 return -ENOMEM;
263
264 ret = platform_device_add_data(sharpsl_pcmcia_device,
265 &sharpsl_pcmcia_ops, sizeof(sharpsl_pcmcia_ops));
266 if (ret == 0) {
267 sharpsl_pcmcia_device->dev.parent = platform_scoop_config->devs[0].dev;
268 ret = platform_device_add(sharpsl_pcmcia_device);
269 }
270
271 if (ret)
272 platform_device_put(sharpsl_pcmcia_device);
273
274 return ret;
275}
276
277static void __exit sharpsl_pcmcia_exit(void)
278{
279 platform_device_unregister(sharpsl_pcmcia_device);
280}
281
282fs_initcall(sharpsl_pcmcia_init);
283module_exit(sharpsl_pcmcia_exit);
284#endif
285
286MODULE_DESCRIPTION("Sharp SL Series PCMCIA Support");
287MODULE_LICENSE("GPL");
288MODULE_ALIAS("platform:pxa2xx-pcmcia");
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Sharp SL-C7xx Series PCMCIA routines
4 *
5 * Copyright (c) 2004-2005 Richard Purdie
6 *
7 * Based on Sharp's 2.4 kernel patches and pxa2xx_mainstone.c
8 */
9
10#include <linux/module.h>
11#include <linux/init.h>
12#include <linux/kernel.h>
13#include <linux/errno.h>
14#include <linux/interrupt.h>
15#include <linux/platform_device.h>
16
17#include <asm/mach-types.h>
18#include <asm/irq.h>
19#include <asm/hardware/scoop.h>
20
21#include <pcmcia/soc_common.h>
22
23#define NO_KEEP_VS 0x0001
24#define SCOOP_DEV platform_scoop_config->devs
25
26static void sharpsl_pcmcia_init_reset(struct soc_pcmcia_socket *skt)
27{
28 struct scoop_pcmcia_dev *scoopdev = &SCOOP_DEV[skt->nr];
29
30 reset_scoop(scoopdev->dev);
31
32 /* Shared power controls need to be handled carefully */
33 if (platform_scoop_config->power_ctrl)
34 platform_scoop_config->power_ctrl(scoopdev->dev, 0x0000, skt->nr);
35 else
36 write_scoop_reg(scoopdev->dev, SCOOP_CPR, 0x0000);
37
38 scoopdev->keep_vs = NO_KEEP_VS;
39 scoopdev->keep_rd = 0;
40}
41
42static int sharpsl_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
43{
44 if (SCOOP_DEV[skt->nr].cd_irq >= 0) {
45 skt->stat[SOC_STAT_CD].irq = SCOOP_DEV[skt->nr].cd_irq;
46 skt->stat[SOC_STAT_CD].name = SCOOP_DEV[skt->nr].cd_irq_str;
47 }
48
49 skt->socket.pci_irq = SCOOP_DEV[skt->nr].irq;
50
51 return 0;
52}
53
54static void sharpsl_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
55 struct pcmcia_state *state)
56{
57 unsigned short cpr, csr;
58 struct device *scoop = SCOOP_DEV[skt->nr].dev;
59
60 cpr = read_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_CPR);
61
62 write_scoop_reg(scoop, SCOOP_IRM, 0x00FF);
63 write_scoop_reg(scoop, SCOOP_ISR, 0x0000);
64 write_scoop_reg(scoop, SCOOP_IRM, 0x0000);
65 csr = read_scoop_reg(scoop, SCOOP_CSR);
66 if (csr & 0x0004) {
67 /* card eject */
68 write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
69 SCOOP_DEV[skt->nr].keep_vs = NO_KEEP_VS;
70 }
71 else if (!(SCOOP_DEV[skt->nr].keep_vs & NO_KEEP_VS)) {
72 /* keep vs1,vs2 */
73 write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
74 csr |= SCOOP_DEV[skt->nr].keep_vs;
75 }
76 else if (cpr & 0x0003) {
77 /* power on */
78 write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
79 SCOOP_DEV[skt->nr].keep_vs = (csr & 0x00C0);
80 }
81 else {
82 /* card detect */
83 if ((machine_is_spitz() || machine_is_borzoi()) && skt->nr == 1) {
84 write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
85 } else {
86 write_scoop_reg(scoop, SCOOP_CDR, 0x0002);
87 }
88 }
89
90 state->detect = (csr & 0x0004) ? 0 : 1;
91 state->ready = (csr & 0x0002) ? 1 : 0;
92 state->bvd1 = (csr & 0x0010) ? 1 : 0;
93 state->bvd2 = (csr & 0x0020) ? 1 : 0;
94 state->wrprot = (csr & 0x0008) ? 1 : 0;
95 state->vs_3v = (csr & 0x0040) ? 0 : 1;
96 state->vs_Xv = (csr & 0x0080) ? 0 : 1;
97
98 if ((cpr & 0x0080) && ((cpr & 0x8040) != 0x8040)) {
99 printk(KERN_ERR "sharpsl_pcmcia_socket_state(): CPR=%04X, Low voltage!\n", cpr);
100 }
101}
102
103
104static int sharpsl_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
105 const socket_state_t *state)
106{
107 unsigned long flags;
108 struct device *scoop = SCOOP_DEV[skt->nr].dev;
109
110 unsigned short cpr, ncpr, ccr, nccr, mcr, nmcr, imr, nimr;
111
112 switch (state->Vcc) {
113 case 0: break;
114 case 33: break;
115 case 50: break;
116 default:
117 printk(KERN_ERR "sharpsl_pcmcia_configure_socket(): bad Vcc %u\n", state->Vcc);
118 return -1;
119 }
120
121 if ((state->Vpp!=state->Vcc) && (state->Vpp!=0)) {
122 printk(KERN_ERR "CF slot cannot support Vpp %u\n", state->Vpp);
123 return -1;
124 }
125
126 local_irq_save(flags);
127
128 nmcr = (mcr = read_scoop_reg(scoop, SCOOP_MCR)) & ~0x0010;
129 ncpr = (cpr = read_scoop_reg(scoop, SCOOP_CPR)) & ~0x0083;
130 nccr = (ccr = read_scoop_reg(scoop, SCOOP_CCR)) & ~0x0080;
131 nimr = (imr = read_scoop_reg(scoop, SCOOP_IMR)) & ~0x003E;
132
133 if ((machine_is_spitz() || machine_is_borzoi() || machine_is_akita()) && skt->nr == 0) {
134 ncpr |= (state->Vcc == 33) ? 0x0002 :
135 (state->Vcc == 50) ? 0x0002 : 0;
136 } else {
137 ncpr |= (state->Vcc == 33) ? 0x0001 :
138 (state->Vcc == 50) ? 0x0002 : 0;
139 }
140 nmcr |= (state->flags&SS_IOCARD) ? 0x0010 : 0;
141 ncpr |= (state->flags&SS_OUTPUT_ENA) ? 0x0080 : 0;
142 nccr |= (state->flags&SS_RESET)? 0x0080: 0;
143 nimr |= ((skt->status&SS_DETECT) ? 0x0004 : 0)|
144 ((skt->status&SS_READY) ? 0x0002 : 0)|
145 ((skt->status&SS_BATDEAD)? 0x0010 : 0)|
146 ((skt->status&SS_BATWARN)? 0x0020 : 0)|
147 ((skt->status&SS_STSCHG) ? 0x0010 : 0)|
148 ((skt->status&SS_WRPROT) ? 0x0008 : 0);
149
150 if (!(ncpr & 0x0003)) {
151 SCOOP_DEV[skt->nr].keep_rd = 0;
152 } else if (!SCOOP_DEV[skt->nr].keep_rd) {
153 if (nccr & 0x0080)
154 SCOOP_DEV[skt->nr].keep_rd = 1;
155 else
156 nccr |= 0x0080;
157 }
158
159 if (mcr != nmcr)
160 write_scoop_reg(scoop, SCOOP_MCR, nmcr);
161 if (cpr != ncpr) {
162 if (platform_scoop_config->power_ctrl)
163 platform_scoop_config->power_ctrl(scoop, ncpr , skt->nr);
164 else
165 write_scoop_reg(scoop, SCOOP_CPR, ncpr);
166 }
167 if (ccr != nccr)
168 write_scoop_reg(scoop, SCOOP_CCR, nccr);
169 if (imr != nimr)
170 write_scoop_reg(scoop, SCOOP_IMR, nimr);
171
172 local_irq_restore(flags);
173
174 return 0;
175}
176
177static void sharpsl_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
178{
179 sharpsl_pcmcia_init_reset(skt);
180
181 /* Enable interrupt */
182 write_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_IMR, 0x00C0);
183 write_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_MCR, 0x0101);
184 SCOOP_DEV[skt->nr].keep_vs = NO_KEEP_VS;
185}
186
187static void sharpsl_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
188{
189 sharpsl_pcmcia_init_reset(skt);
190}
191
192static struct pcmcia_low_level sharpsl_pcmcia_ops = {
193 .owner = THIS_MODULE,
194 .hw_init = sharpsl_pcmcia_hw_init,
195 .socket_state = sharpsl_pcmcia_socket_state,
196 .configure_socket = sharpsl_pcmcia_configure_socket,
197 .socket_init = sharpsl_pcmcia_socket_init,
198 .socket_suspend = sharpsl_pcmcia_socket_suspend,
199 .first = 0,
200 .nr = 0,
201};
202
203#ifdef CONFIG_SA1100_COLLIE
204#include "sa11xx_base.h"
205
206int pcmcia_collie_init(struct device *dev)
207{
208 int ret = -ENODEV;
209
210 if (machine_is_collie())
211 ret = sa11xx_drv_pcmcia_probe(dev, &sharpsl_pcmcia_ops, 0, 1);
212
213 return ret;
214}
215
216#else
217
218static struct platform_device *sharpsl_pcmcia_device;
219
220static int __init sharpsl_pcmcia_init(void)
221{
222 int ret;
223
224 if (!platform_scoop_config)
225 return -ENODEV;
226
227 sharpsl_pcmcia_ops.nr = platform_scoop_config->num_devs;
228 sharpsl_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
229
230 if (!sharpsl_pcmcia_device)
231 return -ENOMEM;
232
233 ret = platform_device_add_data(sharpsl_pcmcia_device,
234 &sharpsl_pcmcia_ops, sizeof(sharpsl_pcmcia_ops));
235 if (ret == 0) {
236 sharpsl_pcmcia_device->dev.parent = platform_scoop_config->devs[0].dev;
237 ret = platform_device_add(sharpsl_pcmcia_device);
238 }
239
240 if (ret)
241 platform_device_put(sharpsl_pcmcia_device);
242
243 return ret;
244}
245
246static void __exit sharpsl_pcmcia_exit(void)
247{
248 platform_device_unregister(sharpsl_pcmcia_device);
249}
250
251fs_initcall(sharpsl_pcmcia_init);
252module_exit(sharpsl_pcmcia_exit);
253#endif
254
255MODULE_DESCRIPTION("Sharp SL Series PCMCIA Support");
256MODULE_LICENSE("GPL");
257MODULE_ALIAS("platform:pxa2xx-pcmcia");