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authorManuel Lauss <manuel.lauss@googlemail.com>2009-10-04 08:55:27 -0400
committerRalf Baechle <ralf@linux-mips.org>2010-02-27 06:52:51 -0500
commit66213b3ccfc770704025ce9465fa3aaedde21b55 (patch)
tree2f74c1819b371926952c9c5b8f98ae808588e728
parent7e50b2b741bb4f9dbddc9f56972ef82a7d4b33ed (diff)
MIPS: PCMCIA: new socket driver for Au1000 demoboards.
New PCMCIA socket driver for all Db/Pb1xxx boards (except Pb1000), which replaces au1000_db1x00.c and (most of) au1000_pb1x00.c. Notable improvements: - supports Db1000, DB/PB1100/1500/1550/1200. - support for carddetect and statuschange IRQs. - pcmcia socket mem/io/attr areas and irqs passed through platform resource information. - doesn't freeze system during card insertion/ejection like the one it replaces. - boardtype is automatically detected using BCSR ID register. Run-tested on the DB1200. Cc: Linux-PCMCIA <linux-pcmcia@lists.infradead.org> Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat
-rw-r--r--arch/mips/alchemy/common/platform.c6
-rw-r--r--arch/mips/alchemy/common/setup.c3
-rw-r--r--arch/mips/include/asm/mach-au1x00/au1000.h14
-rw-r--r--drivers/pcmcia/Kconfig11
-rw-r--r--drivers/pcmcia/Makefile9
-rw-r--r--drivers/pcmcia/au1000_db1x00.c307
-rw-r--r--drivers/pcmcia/au1000_generic.h12
-rw-r--r--drivers/pcmcia/au1000_pb1x00.c119
-rw-r--r--drivers/pcmcia/db1xxx_ss.c630
9 files changed, 660 insertions, 451 deletions
diff --git a/arch/mips/alchemy/common/platform.c b/arch/mips/alchemy/common/platform.c
index 117f99f70649..2b76a57c4947 100644
--- a/arch/mips/alchemy/common/platform.c
+++ b/arch/mips/alchemy/common/platform.c
@@ -308,11 +308,6 @@ static struct platform_device au1200_mmc1_device = {
308#endif /* #ifndef CONFIG_MIPS_DB1200 */ 308#endif /* #ifndef CONFIG_MIPS_DB1200 */
309#endif /* #ifdef CONFIG_SOC_AU1200 */ 309#endif /* #ifdef CONFIG_SOC_AU1200 */
310 310
311static struct platform_device au1x00_pcmcia_device = {
312 .name = "au1x00-pcmcia",
313 .id = 0,
314};
315
316/* All Alchemy demoboards with I2C have this #define in their headers */ 311/* All Alchemy demoboards with I2C have this #define in their headers */
317#ifdef SMBUS_PSC_BASE 312#ifdef SMBUS_PSC_BASE
318static struct resource pbdb_smbus_resources[] = { 313static struct resource pbdb_smbus_resources[] = {
@@ -334,7 +329,6 @@ static struct platform_device pbdb_smbus_device = {
334static struct platform_device *au1xxx_platform_devices[] __initdata = { 329static struct platform_device *au1xxx_platform_devices[] __initdata = {
335 &au1xx0_uart_device, 330 &au1xx0_uart_device,
336 &au1xxx_usb_ohci_device, 331 &au1xxx_usb_ohci_device,
337 &au1x00_pcmcia_device,
338#ifdef CONFIG_FB_AU1100 332#ifdef CONFIG_FB_AU1100
339 &au1100_lcd_device, 333 &au1100_lcd_device,
340#endif 334#endif
diff --git a/arch/mips/alchemy/common/setup.c b/arch/mips/alchemy/common/setup.c
index 6184baa56786..375984e5c2e6 100644
--- a/arch/mips/alchemy/common/setup.c
+++ b/arch/mips/alchemy/common/setup.c
@@ -107,7 +107,8 @@ phys_t __fixup_bigphys_addr(phys_t phys_addr, phys_t size)
107 * The pseudo address we use is 0xF400 0000. Any address over 107 * The pseudo address we use is 0xF400 0000. Any address over
108 * 0xF400 0000 is a PCMCIA pseudo address. 108 * 0xF400 0000 is a PCMCIA pseudo address.
109 */ 109 */
110 if ((phys_addr >= 0xF4000000) && (phys_addr < 0xFFFFFFFF)) 110 if ((phys_addr >= PCMCIA_ATTR_PSEUDO_PHYS) &&
111 (phys_addr < PCMCIA_PSEUDO_END))
111 return (phys_t)(phys_addr << 4); 112 return (phys_t)(phys_addr << 4);
112 113
113 /* default nop */ 114 /* default nop */
diff --git a/arch/mips/include/asm/mach-au1x00/au1000.h b/arch/mips/include/asm/mach-au1x00/au1000.h
index 05078224e933..fceeca883359 100644
--- a/arch/mips/include/asm/mach-au1x00/au1000.h
+++ b/arch/mips/include/asm/mach-au1x00/au1000.h
@@ -1724,6 +1724,20 @@ enum soc_au1200_ints {
1724 1724
1725#endif 1725#endif
1726 1726
1727/*
1728 * All Au1xx0 SOCs have a PCMCIA controller.
1729 * We setup our 32-bit pseudo addresses to be equal to the
1730 * 36-bit addr >> 4, to make it easier to check the address
1731 * and fix it.
1732 * The PCMCIA socket 0 physical attribute address is 0xF 4000 0000.
1733 * The pseudo address we use is 0xF400 0000. Any address over
1734 * 0xF400 0000 is a PCMCIA pseudo address.
1735 */
1736#define PCMCIA_IO_PSEUDO_PHYS (PCMCIA_IO_PHYS_ADDR >> 4)
1737#define PCMCIA_ATTR_PSEUDO_PHYS (PCMCIA_ATTR_PHYS_ADDR >> 4)
1738#define PCMCIA_MEM_PSEUDO_PHYS (PCMCIA_MEM_PHYS_ADDR >> 4)
1739#define PCMCIA_PSEUDO_END (0xffffffff)
1740
1727#ifndef _LANGUAGE_ASSEMBLY 1741#ifndef _LANGUAGE_ASSEMBLY
1728typedef volatile struct { 1742typedef volatile struct {
1729 /* 0x0000 */ u32 toytrim; 1743 /* 0x0000 */ u32 toytrim;
diff --git a/drivers/pcmcia/Kconfig b/drivers/pcmcia/Kconfig
index 9f3adbd9f700..7c16d35679a6 100644
--- a/drivers/pcmcia/Kconfig
+++ b/drivers/pcmcia/Kconfig
@@ -174,6 +174,17 @@ config PCMCIA_AU1X00
174 tristate "Au1x00 pcmcia support" 174 tristate "Au1x00 pcmcia support"
175 depends on SOC_AU1X00 && PCMCIA 175 depends on SOC_AU1X00 && PCMCIA
176 176
177config PCMCIA_ALCHEMY_DEVBOARD
178 tristate "Alchemy Db/Pb1xxx PCMCIA socket services"
179 depends on SOC_AU1X00 && PCMCIA
180 select 64BIT_PHYS_ADDR
181 help
182 Enable this driver of you want PCMCIA support on your Alchemy
183 Db1000, Db/Pb1100, Db/Pb1500, Db/Pb1550, Db/Pb1200 board.
184 NOT suitable for the PB1000!
185
186 This driver is also available as a module called db1xxx_ss.ko
187
177config PCMCIA_BCM63XX 188config PCMCIA_BCM63XX
178 tristate "bcm63xx pcmcia support" 189 tristate "bcm63xx pcmcia support"
179 depends on BCM63XX && PCMCIA 190 depends on BCM63XX && PCMCIA
diff --git a/drivers/pcmcia/Makefile b/drivers/pcmcia/Makefile
index 83ff802de544..f128d71c74c2 100644
--- a/drivers/pcmcia/Makefile
+++ b/drivers/pcmcia/Makefile
@@ -35,17 +35,10 @@ obj-$(CONFIG_OMAP_CF) += omap_cf.o
35obj-$(CONFIG_BFIN_CFPCMCIA) += bfin_cf_pcmcia.o 35obj-$(CONFIG_BFIN_CFPCMCIA) += bfin_cf_pcmcia.o
36obj-$(CONFIG_AT91_CF) += at91_cf.o 36obj-$(CONFIG_AT91_CF) += at91_cf.o
37obj-$(CONFIG_ELECTRA_CF) += electra_cf.o 37obj-$(CONFIG_ELECTRA_CF) += electra_cf.o
38obj-$(CONFIG_PCMCIA_ALCHEMY_DEVBOARD) += db1xxx_ss.o
38 39
39au1x00_ss-y += au1000_generic.o 40au1x00_ss-y += au1000_generic.o
40au1x00_ss-$(CONFIG_MIPS_PB1000) += au1000_pb1x00.o 41au1x00_ss-$(CONFIG_MIPS_PB1000) += au1000_pb1x00.o
41au1x00_ss-$(CONFIG_MIPS_PB1100) += au1000_pb1x00.o
42au1x00_ss-$(CONFIG_MIPS_PB1200) += au1000_db1x00.o
43au1x00_ss-$(CONFIG_MIPS_PB1500) += au1000_pb1x00.o
44au1x00_ss-$(CONFIG_MIPS_DB1000) += au1000_db1x00.o
45au1x00_ss-$(CONFIG_MIPS_DB1100) += au1000_db1x00.o
46au1x00_ss-$(CONFIG_MIPS_DB1200) += au1000_db1x00.o
47au1x00_ss-$(CONFIG_MIPS_DB1500) += au1000_db1x00.o
48au1x00_ss-$(CONFIG_MIPS_DB1550) += au1000_db1x00.o
49au1x00_ss-$(CONFIG_MIPS_XXS1500) += au1000_xxs1500.o 42au1x00_ss-$(CONFIG_MIPS_XXS1500) += au1000_xxs1500.o
50 43
51sa1111_cs-y += sa1111_generic.o 44sa1111_cs-y += sa1111_generic.o
diff --git a/drivers/pcmcia/au1000_db1x00.c b/drivers/pcmcia/au1000_db1x00.c
deleted file mode 100644
index 3fdd664e41c6..000000000000
--- a/drivers/pcmcia/au1000_db1x00.c
+++ /dev/null
@@ -1,307 +0,0 @@
1/*
2 *
3 * Alchemy Semi Db1x00 boards specific pcmcia routines.
4 *
5 * Copyright 2002 MontaVista Software Inc.
6 * Author: MontaVista Software, Inc.
7 * ppopov@mvista.com or source@mvista.com
8 *
9 * Copyright 2004 Pete Popov, updated the driver to 2.6.
10 * Followed the sa11xx API and largely copied many of the hardware
11 * independent functions.
12 *
13 * ########################################################################
14 *
15 * This program is free software; you can distribute it and/or modify it
16 * under the terms of the GNU General Public License (Version 2) as
17 * published by the Free Software Foundation.
18 *
19 * This program is distributed in the hope it will be useful, but WITHOUT
20 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
21 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
22 * for more details.
23 *
24 * You should have received a copy of the GNU General Public License along
25 * with this program; if not, write to the Free Software Foundation, Inc.,
26 * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
27 *
28 * ########################################################################
29 *
30 *
31 */
32
33#include <linux/module.h>
34#include <linux/kernel.h>
35#include <linux/errno.h>
36#include <linux/interrupt.h>
37#include <linux/device.h>
38#include <linux/init.h>
39
40#include <asm/irq.h>
41#include <asm/signal.h>
42#include <asm/mach-au1x00/au1000.h>
43
44#if defined(CONFIG_MIPS_DB1200)
45 #include <db1200.h>
46#elif defined(CONFIG_MIPS_PB1200)
47 #include <pb1200.h>
48#else
49 #include <asm/mach-db1x00/db1x00.h>
50#endif
51
52#include <asm/mach-db1x00/bcsr.h>
53#include "au1000_generic.h"
54
55#if 0
56#define debug(x,args...) printk(KERN_DEBUG "%s: " x, __func__ , ##args)
57#else
58#define debug(x,args...)
59#endif
60
61
62struct au1000_pcmcia_socket au1000_pcmcia_socket[PCMCIA_NUM_SOCKS];
63extern int au1x00_pcmcia_socket_probe(struct device *, struct pcmcia_low_level *, int, int);
64
65static int db1x00_pcmcia_hw_init(struct au1000_pcmcia_socket *skt)
66{
67#ifdef CONFIG_MIPS_DB1550
68 skt->irq = skt->nr ? AU1000_GPIO_5 : AU1000_GPIO_3;
69#elif defined(CONFIG_MIPS_DB1200) || defined(CONFIG_MIPS_PB1200)
70 skt->irq = skt->nr ? BOARD_PC1_INT : BOARD_PC0_INT;
71#else
72 skt->irq = skt->nr ? AU1000_GPIO_5 : AU1000_GPIO_2;
73#endif
74 return 0;
75}
76
77static void db1x00_pcmcia_shutdown(struct au1000_pcmcia_socket *skt)
78{
79 bcsr_write(BCSR_PCMCIA, 0); /* turn off power */
80 msleep(2);
81}
82
83static void
84db1x00_pcmcia_socket_state(struct au1000_pcmcia_socket *skt, struct pcmcia_state *state)
85{
86 u32 inserted;
87 unsigned char vs;
88
89 state->ready = 0;
90 state->vs_Xv = 0;
91 state->vs_3v = 0;
92 state->detect = 0;
93
94 switch (skt->nr) {
95 case 0:
96 vs = bcsr_read(BCSR_STATUS) & 0x3;
97#if defined(CONFIG_MIPS_DB1200) || defined(CONFIG_MIPS_PB1200)
98 inserted = BOARD_CARD_INSERTED(0);
99#else
100 inserted = !(bcsr_read(BCSR_STATUS) & (1 << 4));
101#endif
102 break;
103 case 1:
104 vs = (bcsr_read(BCSR_STATUS) & 0xC) >> 2;
105#if defined(CONFIG_MIPS_DB1200) || defined(CONFIG_MIPS_PB1200)
106 inserted = BOARD_CARD_INSERTED(1);
107#else
108 inserted = !(bcsr_read(BCSR_STATUS) & (1<<5));
109#endif
110 break;
111 default:/* should never happen */
112 return;
113 }
114
115 if (inserted)
116 debug("db1x00 socket %d: inserted %d, vs %d pcmcia %x\n",
117 skt->nr, inserted, vs, bcsr_read(BCSR_PCMCIA));
118
119 if (inserted) {
120 switch (vs) {
121 case 0:
122 case 2:
123 state->vs_3v=1;
124 break;
125 case 3: /* 5V */
126 break;
127 default:
128 /* return without setting 'detect' */
129 printk(KERN_ERR "db1x00 bad VS (%d)\n",
130 vs);
131 }
132 state->detect = 1;
133 state->ready = 1;
134 }
135 else {
136 /* if the card was previously inserted and then ejected,
137 * we should turn off power to it
138 */
139 if ((skt->nr == 0) &&
140 (bcsr_read(BCSR_PCMCIA) & BCSR_PCMCIA_PC0RST)) {
141 bcsr_mod(BCSR_PCMCIA, BCSR_PCMCIA_PC0RST |
142 BCSR_PCMCIA_PC0DRVEN |
143 BCSR_PCMCIA_PC0VPP |
144 BCSR_PCMCIA_PC0VCC, 0);
145 msleep(10);
146 }
147 else if ((skt->nr == 1) &&
148 (bcsr_read(BCSR_PCMCIA) & BCSR_PCMCIA_PC1RST)) {
149 bcsr_mod(BCSR_PCMCIA, BCSR_PCMCIA_PC1RST |
150 BCSR_PCMCIA_PC1DRVEN |
151 BCSR_PCMCIA_PC1VPP |
152 BCSR_PCMCIA_PC1VCC, 0);
153 msleep(10);
154 }
155 }
156
157 state->bvd1=1;
158 state->bvd2=1;
159 state->wrprot=0;
160}
161
162static int
163db1x00_pcmcia_configure_socket(struct au1000_pcmcia_socket *skt, struct socket_state_t *state)
164{
165 u16 pwr;
166 int sock = skt->nr;
167
168 debug("config_skt %d Vcc %dV Vpp %dV, reset %d\n",
169 sock, state->Vcc, state->Vpp,
170 state->flags & SS_RESET);
171
172 /* pcmcia reg was set to zero at init time. Be careful when
173 * initializing a socket not to wipe out the settings of the
174 * other socket.
175 */
176 pwr = bcsr_read(BCSR_PCMCIA);
177 pwr &= ~(0xf << sock*8); /* clear voltage settings */
178
179 state->Vpp = 0;
180 switch(state->Vcc){
181 case 0: /* Vcc 0 */
182 pwr |= SET_VCC_VPP(0,0,sock);
183 break;
184 case 50: /* Vcc 5V */
185 switch(state->Vpp) {
186 case 0:
187 pwr |= SET_VCC_VPP(2,0,sock);
188 break;
189 case 50:
190 pwr |= SET_VCC_VPP(2,1,sock);
191 break;
192 case 12:
193 pwr |= SET_VCC_VPP(2,2,sock);
194 break;
195 case 33:
196 default:
197 pwr |= SET_VCC_VPP(0,0,sock);
198 printk("%s: bad Vcc/Vpp (%d:%d)\n",
199 __func__,
200 state->Vcc,
201 state->Vpp);
202 break;
203 }
204 break;
205 case 33: /* Vcc 3.3V */
206 switch(state->Vpp) {
207 case 0:
208 pwr |= SET_VCC_VPP(1,0,sock);
209 break;
210 case 12:
211 pwr |= SET_VCC_VPP(1,2,sock);
212 break;
213 case 33:
214 pwr |= SET_VCC_VPP(1,1,sock);
215 break;
216 case 50:
217 default:
218 pwr |= SET_VCC_VPP(0,0,sock);
219 printk("%s: bad Vcc/Vpp (%d:%d)\n",
220 __func__,
221 state->Vcc,
222 state->Vpp);
223 break;
224 }
225 break;
226 default: /* what's this ? */
227 pwr |= SET_VCC_VPP(0,0,sock);
228 printk(KERN_ERR "%s: bad Vcc %d\n",
229 __func__, state->Vcc);
230 break;
231 }
232
233 bcsr_write(BCSR_PCMCIA, pwr);
234 msleep(300);
235
236 if (sock == 0) {
237 if (!(state->flags & SS_RESET)) {
238 pwr |= BCSR_PCMCIA_PC0DRVEN;
239 bcsr_write(BCSR_PCMCIA, pwr);
240 msleep(300);
241 pwr |= BCSR_PCMCIA_PC0RST;
242 bcsr_write(BCSR_PCMCIA, pwr);
243 msleep(100);
244 }
245 else {
246 pwr &= ~(BCSR_PCMCIA_PC0RST | BCSR_PCMCIA_PC0DRVEN);
247 bcsr_write(BCSR_PCMCIA, pwr);
248 msleep(100);
249 }
250 }
251 else {
252 if (!(state->flags & SS_RESET)) {
253 pwr |= BCSR_PCMCIA_PC1DRVEN;
254 bcsr_write(BCSR_PCMCIA, pwr);
255 msleep(300);
256 pwr |= BCSR_PCMCIA_PC1RST;
257 bcsr_write(BCSR_PCMCIA, pwr);
258 msleep(100);
259 }
260 else {
261 pwr &= ~(BCSR_PCMCIA_PC1RST | BCSR_PCMCIA_PC1DRVEN);
262 bcsr_write(BCSR_PCMCIA, pwr);
263 msleep(100);
264 }
265 }
266 return 0;
267}
268
269/*
270 * Enable card status IRQs on (re-)initialisation. This can
271 * be called at initialisation, power management event, or
272 * pcmcia event.
273 */
274void db1x00_socket_init(struct au1000_pcmcia_socket *skt)
275{
276 /* nothing to do for now */
277}
278
279/*
280 * Disable card status IRQs and PCMCIA bus on suspend.
281 */
282void db1x00_socket_suspend(struct au1000_pcmcia_socket *skt)
283{
284 /* nothing to do for now */
285}
286
287struct pcmcia_low_level db1x00_pcmcia_ops = {
288 .owner = THIS_MODULE,
289
290 .hw_init = db1x00_pcmcia_hw_init,
291 .hw_shutdown = db1x00_pcmcia_shutdown,
292
293 .socket_state = db1x00_pcmcia_socket_state,
294 .configure_socket = db1x00_pcmcia_configure_socket,
295
296 .socket_init = db1x00_socket_init,
297 .socket_suspend = db1x00_socket_suspend
298};
299
300int au1x_board_init(struct device *dev)
301{
302 int ret = -ENODEV;
303 bcsr_write(BCSR_PCMCIA, 0); /* turn off power, if it's not already off */
304 msleep(2);
305 ret = au1x00_pcmcia_socket_probe(dev, &db1x00_pcmcia_ops, 0, 2);
306 return ret;
307}
diff --git a/drivers/pcmcia/au1000_generic.h b/drivers/pcmcia/au1000_generic.h
index 13a4fbc58711..aa743f6875bd 100644
--- a/drivers/pcmcia/au1000_generic.h
+++ b/drivers/pcmcia/au1000_generic.h
@@ -44,22 +44,12 @@
44/* pcmcia socket 1 needs external glue logic so the memory map 44/* pcmcia socket 1 needs external glue logic so the memory map
45 * differs from board to board. 45 * differs from board to board.
46 */ 46 */
47#if defined(CONFIG_MIPS_PB1000) || defined(CONFIG_MIPS_PB1100) || \ 47#if defined(CONFIG_MIPS_PB1000)
48 defined(CONFIG_MIPS_PB1500) || defined(CONFIG_MIPS_PB1550) || \
49 defined(CONFIG_MIPS_PB1200)
50#define AU1X_SOCK1_IO 0xF08000000ULL 48#define AU1X_SOCK1_IO 0xF08000000ULL
51#define AU1X_SOCK1_PHYS_ATTR 0xF48000000ULL 49#define AU1X_SOCK1_PHYS_ATTR 0xF48000000ULL
52#define AU1X_SOCK1_PHYS_MEM 0xF88000000ULL 50#define AU1X_SOCK1_PHYS_MEM 0xF88000000ULL
53#define AU1X_SOCK1_PSEUDO_PHYS_ATTR 0xF4800000 51#define AU1X_SOCK1_PSEUDO_PHYS_ATTR 0xF4800000
54#define AU1X_SOCK1_PSEUDO_PHYS_MEM 0xF8800000 52#define AU1X_SOCK1_PSEUDO_PHYS_MEM 0xF8800000
55#elif defined(CONFIG_MIPS_DB1000) || defined(CONFIG_MIPS_DB1100) || \
56 defined(CONFIG_MIPS_DB1500) || defined(CONFIG_MIPS_DB1550) || \
57 defined(CONFIG_MIPS_DB1200)
58#define AU1X_SOCK1_IO 0xF04000000ULL
59#define AU1X_SOCK1_PHYS_ATTR 0xF44000000ULL
60#define AU1X_SOCK1_PHYS_MEM 0xF84000000ULL
61#define AU1X_SOCK1_PSEUDO_PHYS_ATTR 0xF4400000
62#define AU1X_SOCK1_PSEUDO_PHYS_MEM 0xF8400000
63#endif 53#endif
64 54
65struct pcmcia_state { 55struct pcmcia_state {
diff --git a/drivers/pcmcia/au1000_pb1x00.c b/drivers/pcmcia/au1000_pb1x00.c
index b1984ed72d1d..5a979cb8f3e6 100644
--- a/drivers/pcmcia/au1000_pb1x00.c
+++ b/drivers/pcmcia/au1000_pb1x00.c
@@ -1,6 +1,6 @@
1/* 1/*
2 * 2 *
3 * Alchemy Semi Pb1x00 boards specific pcmcia routines. 3 * Alchemy Semi Pb1000 boards specific pcmcia routines.
4 * 4 *
5 * Copyright 2002 MontaVista Software Inc. 5 * Copyright 2002 MontaVista Software Inc.
6 * Author: MontaVista Software, Inc. 6 * Author: MontaVista Software, Inc.
@@ -46,20 +46,11 @@
46 46
47#define debug(fmt, arg...) do { } while (0) 47#define debug(fmt, arg...) do { } while (0)
48 48
49#ifdef CONFIG_MIPS_PB1000
50#include <asm/pb1000.h> 49#include <asm/pb1000.h>
51#define PCMCIA_IRQ AU1000_GPIO_15 50#define PCMCIA_IRQ AU1000_GPIO_15
52#elif defined (CONFIG_MIPS_PB1500)
53#include <asm/pb1500.h>
54#define PCMCIA_IRQ AU1500_GPIO_203
55#elif defined (CONFIG_MIPS_PB1100)
56#include <asm/pb1100.h>
57#define PCMCIA_IRQ AU1000_GPIO_11
58#endif
59 51
60static int pb1x00_pcmcia_init(struct pcmcia_init *init) 52static int pb1x00_pcmcia_init(struct pcmcia_init *init)
61{ 53{
62#ifdef CONFIG_MIPS_PB1000
63 u16 pcr; 54 u16 pcr;
64 pcr = PCR_SLOT_0_RST | PCR_SLOT_1_RST; 55 pcr = PCR_SLOT_0_RST | PCR_SLOT_1_RST;
65 56
@@ -74,21 +65,10 @@ static int pb1x00_pcmcia_init(struct pcmcia_init *init)
74 au_sync_delay(20); 65 au_sync_delay(20);
75 66
76 return PCMCIA_NUM_SOCKS; 67 return PCMCIA_NUM_SOCKS;
77
78#else /* fixme -- take care of the Pb1500 at some point */
79
80 u16 pcr;
81 pcr = au_readw(PCMCIA_BOARD_REG) & ~0xf; /* turn off power */
82 pcr &= ~(PC_DEASSERT_RST | PC_DRV_EN);
83 au_writew(pcr, PCMCIA_BOARD_REG);
84 au_sync_delay(500);
85 return PCMCIA_NUM_SOCKS;
86#endif
87} 68}
88 69
89static int pb1x00_pcmcia_shutdown(void) 70static int pb1x00_pcmcia_shutdown(void)
90{ 71{
91#ifdef CONFIG_MIPS_PB1000
92 u16 pcr; 72 u16 pcr;
93 pcr = PCR_SLOT_0_RST | PCR_SLOT_1_RST; 73 pcr = PCR_SLOT_0_RST | PCR_SLOT_1_RST;
94 pcr |= SET_VCC_VPP(VCC_HIZ,VPP_HIZ,0); 74 pcr |= SET_VCC_VPP(VCC_HIZ,VPP_HIZ,0);
@@ -96,14 +76,6 @@ static int pb1x00_pcmcia_shutdown(void)
96 au_writel(pcr, PB1000_PCR); 76 au_writel(pcr, PB1000_PCR);
97 au_sync_delay(20); 77 au_sync_delay(20);
98 return 0; 78 return 0;
99#else
100 u16 pcr;
101 pcr = au_readw(PCMCIA_BOARD_REG) & ~0xf; /* turn off power */
102 pcr &= ~(PC_DEASSERT_RST | PC_DRV_EN);
103 au_writew(pcr, PCMCIA_BOARD_REG);
104 au_sync_delay(2);
105 return 0;
106#endif
107} 79}
108 80
109static int 81static int
@@ -112,21 +84,11 @@ pb1x00_pcmcia_socket_state(unsigned sock, struct pcmcia_state *state)
112 u32 inserted0, inserted1; 84 u32 inserted0, inserted1;
113 u16 vs0, vs1; 85 u16 vs0, vs1;
114 86
115#ifdef CONFIG_MIPS_PB1000
116 vs0 = vs1 = (u16)au_readl(PB1000_ACR1); 87 vs0 = vs1 = (u16)au_readl(PB1000_ACR1);
117 inserted0 = !(vs0 & (ACR1_SLOT_0_CD1 | ACR1_SLOT_0_CD2)); 88 inserted0 = !(vs0 & (ACR1_SLOT_0_CD1 | ACR1_SLOT_0_CD2));
118 inserted1 = !(vs1 & (ACR1_SLOT_1_CD1 | ACR1_SLOT_1_CD2)); 89 inserted1 = !(vs1 & (ACR1_SLOT_1_CD1 | ACR1_SLOT_1_CD2));
119 vs0 = (vs0 >> 4) & 0x3; 90 vs0 = (vs0 >> 4) & 0x3;
120 vs1 = (vs1 >> 12) & 0x3; 91 vs1 = (vs1 >> 12) & 0x3;
121#else
122 vs0 = (au_readw(BOARD_STATUS_REG) >> 4) & 0x3;
123#ifdef CONFIG_MIPS_PB1500
124 inserted0 = !((au_readl(GPIO2_PINSTATE) >> 1) & 0x1); /* gpio 201 */
125#else /* Pb1100 */
126 inserted0 = !((au_readl(SYS_PINSTATERD) >> 9) & 0x1); /* gpio 9 */
127#endif
128 inserted1 = 0;
129#endif
130 92
131 state->ready = 0; 93 state->ready = 0;
132 state->vs_Xv = 0; 94 state->vs_Xv = 0;
@@ -203,7 +165,6 @@ pb1x00_pcmcia_configure_socket(const struct pcmcia_configure *configure)
203 165
204 if(configure->sock > PCMCIA_MAX_SOCK) return -1; 166 if(configure->sock > PCMCIA_MAX_SOCK) return -1;
205 167
206#ifdef CONFIG_MIPS_PB1000
207 pcr = au_readl(PB1000_PCR); 168 pcr = au_readl(PB1000_PCR);
208 169
209 if (configure->sock == 0) { 170 if (configure->sock == 0) {
@@ -323,84 +284,6 @@ pb1x00_pcmcia_configure_socket(const struct pcmcia_configure *configure)
323 au_writel(pcr, PB1000_PCR); 284 au_writel(pcr, PB1000_PCR);
324 au_sync_delay(300); 285 au_sync_delay(300);
325 286
326#else
327
328 pcr = au_readw(PCMCIA_BOARD_REG) & ~0xf;
329
330 debug("Vcc %dV Vpp %dV, pcr %x, reset %d\n",
331 configure->vcc, configure->vpp, pcr, configure->reset);
332
333
334 switch(configure->vcc){
335 case 0: /* Vcc 0 */
336 pcr |= SET_VCC_VPP(0,0);
337 break;
338 case 50: /* Vcc 5V */
339 switch(configure->vpp) {
340 case 0:
341 pcr |= SET_VCC_VPP(2,0);
342 break;
343 case 50:
344 pcr |= SET_VCC_VPP(2,1);
345 break;
346 case 12:
347 pcr |= SET_VCC_VPP(2,2);
348 break;
349 case 33:
350 default:
351 pcr |= SET_VCC_VPP(0,0);
352 printk("%s: bad Vcc/Vpp (%d:%d)\n",
353 __func__,
354 configure->vcc,
355 configure->vpp);
356 break;
357 }
358 break;
359 case 33: /* Vcc 3.3V */
360 switch(configure->vpp) {
361 case 0:
362 pcr |= SET_VCC_VPP(1,0);
363 break;
364 case 12:
365 pcr |= SET_VCC_VPP(1,2);
366 break;
367 case 33:
368 pcr |= SET_VCC_VPP(1,1);
369 break;
370 case 50:
371 default:
372 pcr |= SET_VCC_VPP(0,0);
373 printk("%s: bad Vcc/Vpp (%d:%d)\n",
374 __func__,
375 configure->vcc,
376 configure->vpp);
377 break;
378 }
379 break;
380 default: /* what's this ? */
381 pcr |= SET_VCC_VPP(0,0);
382 printk(KERN_ERR "%s: bad Vcc %d\n",
383 __func__, configure->vcc);
384 break;
385 }
386
387 au_writew(pcr, PCMCIA_BOARD_REG);
388 au_sync_delay(300);
389
390 if (!configure->reset) {
391 pcr |= PC_DRV_EN;
392 au_writew(pcr, PCMCIA_BOARD_REG);
393 au_sync_delay(100);
394 pcr |= PC_DEASSERT_RST;
395 au_writew(pcr, PCMCIA_BOARD_REG);
396 au_sync_delay(100);
397 }
398 else {
399 pcr &= ~(PC_DEASSERT_RST | PC_DRV_EN);
400 au_writew(pcr, PCMCIA_BOARD_REG);
401 au_sync_delay(100);
402 }
403#endif
404 return 0; 287 return 0;
405} 288}
406 289
diff --git a/drivers/pcmcia/db1xxx_ss.c b/drivers/pcmcia/db1xxx_ss.c
new file mode 100644
index 000000000000..b35b72b0d5b5
--- /dev/null
+++ b/drivers/pcmcia/db1xxx_ss.c
@@ -0,0 +1,630 @@
1/*
2 * PCMCIA socket code for the Alchemy Db1xxx/Pb1xxx boards.
3 *
4 * Copyright (c) 2009 Manuel Lauss <manuel.lauss@gmail.com>
5 *
6 */
7
8/* This is a fairly generic PCMCIA socket driver suitable for the
9 * following Alchemy Development boards:
10 * Db1000, Db/Pb1500, Db/Pb1100, Db/Pb1550, Db/Pb1200.
11 *
12 * The Db1000 is used as a reference: Per-socket card-, carddetect- and
13 * statuschange IRQs connected to SoC GPIOs, control and status register
14 * bits arranged in per-socket groups in an external PLD. All boards
15 * listed here use this layout, including bit positions and meanings.
16 * Of course there are exceptions in later boards:
17 *
18 * - Pb1100/Pb1500: single socket only; voltage key bits VS are
19 * at STATUS[5:4] (instead of STATUS[1:0]).
20 * - Au1200-based: additional card-eject irqs, irqs not gpios!
21 */
22
23#include <linux/delay.h>
24#include <linux/gpio.h>
25#include <linux/interrupt.h>
26#include <linux/pm.h>
27#include <linux/platform_device.h>
28#include <linux/resource.h>
29#include <linux/spinlock.h>
30
31#include <pcmcia/cs_types.h>
32#include <pcmcia/ss.h>
33
34#include <asm/mach-au1x00/au1000.h>
35#include <asm/mach-db1x00/bcsr.h>
36
37#define MEM_MAP_SIZE 0x400000
38#define IO_MAP_SIZE 0x1000
39
40struct db1x_pcmcia_sock {
41 struct pcmcia_socket socket;
42 int nr; /* socket number */
43 void *virt_io;
44
45 /* the "pseudo" addresses of the PCMCIA space. */
46 unsigned long phys_io;
47 unsigned long phys_attr;
48 unsigned long phys_mem;
49
50 /* previous flags for set_socket() */
51 unsigned int old_flags;
52
53 /* interrupt sources: linux irq numbers! */
54 int insert_irq; /* default carddetect irq */
55 int stschg_irq; /* card-status-change irq */
56 int card_irq; /* card irq */
57 int eject_irq; /* db1200/pb1200 have these */
58
59#define BOARD_TYPE_DEFAULT 0 /* most boards */
60#define BOARD_TYPE_DB1200 1 /* IRQs aren't gpios */
61#define BOARD_TYPE_PB1100 2 /* VS bits slightly different */
62 int board_type;
63};
64
65#define to_db1x_socket(x) container_of(x, struct db1x_pcmcia_sock, socket)
66
67/* DB/PB1200: check CPLD SIGSTATUS register bit 10/12 */
68static int db1200_card_inserted(struct db1x_pcmcia_sock *sock)
69{
70 unsigned short sigstat;
71
72 sigstat = bcsr_read(BCSR_SIGSTAT);
73 return sigstat & 1 << (8 + 2 * sock->nr);
74}
75
76/* carddetect gpio: low-active */
77static int db1000_card_inserted(struct db1x_pcmcia_sock *sock)
78{
79 return !gpio_get_value(irq_to_gpio(sock->insert_irq));
80}
81
82static int db1x_card_inserted(struct db1x_pcmcia_sock *sock)
83{
84 switch (sock->board_type) {
85 case BOARD_TYPE_DB1200:
86 return db1200_card_inserted(sock);
87 default:
88 return db1000_card_inserted(sock);
89 }
90}
91
92/* STSCHG tends to bounce heavily when cards are inserted/ejected.
93 * To avoid this, the interrupt is normally disabled and only enabled
94 * after reset to a card has been de-asserted.
95 */
96static inline void set_stschg(struct db1x_pcmcia_sock *sock, int en)
97{
98 if (sock->stschg_irq != -1) {
99 if (en)
100 enable_irq(sock->stschg_irq);
101 else
102 disable_irq(sock->stschg_irq);
103 }
104}
105
106static irqreturn_t db1000_pcmcia_cdirq(int irq, void *data)
107{
108 struct db1x_pcmcia_sock *sock = data;
109
110 pcmcia_parse_events(&sock->socket, SS_DETECT);
111
112 return IRQ_HANDLED;
113}
114
115static irqreturn_t db1000_pcmcia_stschgirq(int irq, void *data)
116{
117 struct db1x_pcmcia_sock *sock = data;
118
119 pcmcia_parse_events(&sock->socket, SS_STSCHG);
120
121 return IRQ_HANDLED;
122}
123
124static irqreturn_t db1200_pcmcia_cdirq(int irq, void *data)
125{
126 struct db1x_pcmcia_sock *sock = data;
127
128 /* Db/Pb1200 have separate per-socket insertion and ejection
129 * interrupts which stay asserted as long as the card is
130 * inserted/missing. The one which caused us to be called
131 * needs to be disabled and the other one enabled.
132 */
133 if (irq == sock->insert_irq) {
134 disable_irq_nosync(sock->insert_irq);
135 enable_irq(sock->eject_irq);
136 } else {
137 disable_irq_nosync(sock->eject_irq);
138 enable_irq(sock->insert_irq);
139 }
140
141 pcmcia_parse_events(&sock->socket, SS_DETECT);
142
143 return IRQ_HANDLED;
144}
145
146static int db1x_pcmcia_setup_irqs(struct db1x_pcmcia_sock *sock)
147{
148 int ret;
149 unsigned long flags;
150
151 if (sock->stschg_irq != -1) {
152 ret = request_irq(sock->stschg_irq, db1000_pcmcia_stschgirq,
153 0, "pcmcia_stschg", sock);
154 if (ret)
155 return ret;
156 }
157
158 /* Db/Pb1200 have separate per-socket insertion and ejection
159 * interrupts, which should show edge behaviour but don't.
160 * So interrupts are disabled until both insertion and
161 * ejection handler have been registered and the currently
162 * active one disabled.
163 */
164 if (sock->board_type == BOARD_TYPE_DB1200) {
165 local_irq_save(flags);
166
167 ret = request_irq(sock->insert_irq, db1200_pcmcia_cdirq,
168 IRQF_DISABLED, "pcmcia_insert", sock);
169 if (ret)
170 goto out1;
171
172 ret = request_irq(sock->eject_irq, db1200_pcmcia_cdirq,
173 IRQF_DISABLED, "pcmcia_eject", sock);
174 if (ret) {
175 free_irq(sock->insert_irq, sock);
176 local_irq_restore(flags);
177 goto out1;
178 }
179
180 /* disable the currently active one */
181 if (db1200_card_inserted(sock))
182 disable_irq_nosync(sock->insert_irq);
183 else
184 disable_irq_nosync(sock->eject_irq);
185
186 local_irq_restore(flags);
187 } else {
188 /* all other (older) Db1x00 boards use a GPIO to show
189 * card detection status: use both-edge triggers.
190 */
191 set_irq_type(sock->insert_irq, IRQ_TYPE_EDGE_BOTH);
192 ret = request_irq(sock->insert_irq, db1000_pcmcia_cdirq,
193 0, "pcmcia_carddetect", sock);
194
195 if (ret)
196 goto out1;
197 }
198
199 return 0; /* all done */
200
201out1:
202 if (sock->stschg_irq != -1)
203 free_irq(sock->stschg_irq, sock);
204
205 return ret;
206}
207
208static void db1x_pcmcia_free_irqs(struct db1x_pcmcia_sock *sock)
209{
210 if (sock->stschg_irq != -1)
211 free_irq(sock->stschg_irq, sock);
212
213 free_irq(sock->insert_irq, sock);
214 if (sock->eject_irq != -1)
215 free_irq(sock->eject_irq, sock);
216}
217
218/*
219 * configure a PCMCIA socket on the Db1x00 series of boards (and
220 * compatibles).
221 *
222 * 2 external registers are involved:
223 * pcmcia_status (offset 0x04): bits [0:1/2:3]: read card voltage id
224 * pcmcia_control(offset 0x10):
225 * bits[0:1] set vcc for card
226 * bits[2:3] set vpp for card
227 * bit 4: enable data buffers
228 * bit 7: reset# for card
229 * add 8 for second socket.
230 */
231static int db1x_pcmcia_configure(struct pcmcia_socket *skt,
232 struct socket_state_t *state)
233{
234 struct db1x_pcmcia_sock *sock = to_db1x_socket(skt);
235 unsigned short cr_clr, cr_set;
236 unsigned int changed;
237 int v, p, ret;
238
239 /* card voltage setup */
240 cr_clr = (0xf << (sock->nr * 8)); /* clear voltage settings */
241 cr_set = 0;
242 v = p = ret = 0;
243
244 switch (state->Vcc) {
245 case 50:
246 ++v;
247 case 33:
248 ++v;
249 case 0:
250 break;
251 default:
252 printk(KERN_INFO "pcmcia%d unsupported Vcc %d\n",
253 sock->nr, state->Vcc);
254 }
255
256 switch (state->Vpp) {
257 case 12:
258 ++p;
259 case 33:
260 case 50:
261 ++p;
262 case 0:
263 break;
264 default:
265 printk(KERN_INFO "pcmcia%d unsupported Vpp %d\n",
266 sock->nr, state->Vpp);
267 }
268
269 /* sanity check: Vpp must be 0, 12, or Vcc */
270 if (((state->Vcc == 33) && (state->Vpp == 50)) ||
271 ((state->Vcc == 50) && (state->Vpp == 33))) {
272 printk(KERN_INFO "pcmcia%d bad Vcc/Vpp combo (%d %d)\n",
273 sock->nr, state->Vcc, state->Vpp);
274 v = p = 0;
275 ret = -EINVAL;
276 }
277
278 /* create new voltage code */
279 cr_set |= ((v << 2) | p) << (sock->nr * 8);
280
281 changed = state->flags ^ sock->old_flags;
282
283 if (changed & SS_RESET) {
284 if (state->flags & SS_RESET) {
285 set_stschg(sock, 0);
286 /* assert reset, disable io buffers */
287 cr_clr |= (1 << (7 + (sock->nr * 8)));
288 cr_clr |= (1 << (4 + (sock->nr * 8)));
289 } else {
290 /* de-assert reset, enable io buffers */
291 cr_set |= 1 << (7 + (sock->nr * 8));
292 cr_set |= 1 << (4 + (sock->nr * 8));
293 }
294 }
295
296 /* update PCMCIA configuration */
297 bcsr_mod(BCSR_PCMCIA, cr_clr, cr_set);
298
299 sock->old_flags = state->flags;
300
301 /* reset was taken away: give card time to initialize properly */
302 if ((changed & SS_RESET) && !(state->flags & SS_RESET)) {
303 msleep(500);
304 set_stschg(sock, 1);
305 }
306
307 return ret;
308}
309
310/* VCC bits at [3:2]/[11:10] */
311#define GET_VCC(cr, socknr) \
312 ((((cr) >> 2) >> ((socknr) * 8)) & 3)
313
314/* VS bits at [0:1]/[3:2] */
315#define GET_VS(sr, socknr) \
316 (((sr) >> (2 * (socknr))) & 3)
317
318/* reset bits at [7]/[15] */
319#define GET_RESET(cr, socknr) \
320 ((cr) & (1 << (7 + (8 * (socknr)))))
321
322static int db1x_pcmcia_get_status(struct pcmcia_socket *skt,
323 unsigned int *value)
324{
325 struct db1x_pcmcia_sock *sock = to_db1x_socket(skt);
326 unsigned short cr, sr;
327 unsigned int status;
328
329 status = db1x_card_inserted(sock) ? SS_DETECT : 0;
330
331 cr = bcsr_read(BCSR_PCMCIA);
332 sr = bcsr_read(BCSR_STATUS);
333
334 /* PB1100/PB1500: voltage key bits are at [5:4] */
335 if (sock->board_type == BOARD_TYPE_PB1100)
336 sr >>= 4;
337
338 /* determine card type */
339 switch (GET_VS(sr, sock->nr)) {
340 case 0:
341 case 2:
342 status |= SS_3VCARD; /* 3V card */
343 case 3:
344 break; /* 5V card: set nothing */
345 default:
346 status |= SS_XVCARD; /* treated as unsupported in core */
347 }
348
349 /* if Vcc is not zero, we have applied power to a card */
350 status |= GET_VCC(cr, sock->nr) ? SS_POWERON : 0;
351
352 /* reset de-asserted? then we're ready */
353 status |= (GET_RESET(cr, sock->nr)) ? SS_READY : SS_RESET;
354
355 *value = status;
356
357 return 0;
358}
359
360static int db1x_pcmcia_sock_init(struct pcmcia_socket *skt)
361{
362 return 0;
363}
364
365static int db1x_pcmcia_sock_suspend(struct pcmcia_socket *skt)
366{
367 return 0;
368}
369
370static int au1x00_pcmcia_set_io_map(struct pcmcia_socket *skt,
371 struct pccard_io_map *map)
372{
373 struct db1x_pcmcia_sock *sock = to_db1x_socket(skt);
374
375 map->start = (u32)sock->virt_io;
376 map->stop = map->start + IO_MAP_SIZE;
377
378 return 0;
379}
380
381static int au1x00_pcmcia_set_mem_map(struct pcmcia_socket *skt,
382 struct pccard_mem_map *map)
383{
384 struct db1x_pcmcia_sock *sock = to_db1x_socket(skt);
385
386 if (map->flags & MAP_ATTRIB)
387 map->static_start = sock->phys_attr + map->card_start;
388 else
389 map->static_start = sock->phys_mem + map->card_start;
390
391 return 0;
392}
393
394static struct pccard_operations db1x_pcmcia_operations = {
395 .init = db1x_pcmcia_sock_init,
396 .suspend = db1x_pcmcia_sock_suspend,
397 .get_status = db1x_pcmcia_get_status,
398 .set_socket = db1x_pcmcia_configure,
399 .set_io_map = au1x00_pcmcia_set_io_map,
400 .set_mem_map = au1x00_pcmcia_set_mem_map,
401};
402
403static int __devinit db1x_pcmcia_socket_probe(struct platform_device *pdev)
404{
405 struct db1x_pcmcia_sock *sock;
406 struct resource *r;
407 phys_t physio;
408 int ret, bid;
409
410 sock = kzalloc(sizeof(struct db1x_pcmcia_sock), GFP_KERNEL);
411 if (!sock)
412 return -ENOMEM;
413
414 sock->nr = pdev->id;
415
416 bid = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI));
417 switch (bid) {
418 case BCSR_WHOAMI_PB1500:
419 case BCSR_WHOAMI_PB1500R2:
420 case BCSR_WHOAMI_PB1100:
421 sock->board_type = BOARD_TYPE_PB1100;
422 break;
423 case BCSR_WHOAMI_DB1000 ... BCSR_WHOAMI_PB1550_SDR:
424 sock->board_type = BOARD_TYPE_DEFAULT;
425 break;
426 case BCSR_WHOAMI_PB1200 ... BCSR_WHOAMI_DB1200:
427 sock->board_type = BOARD_TYPE_DB1200;
428 break;
429 default:
430 printk(KERN_INFO "db1xxx-ss: unknown board %d!\n", bid);
431 ret = -ENODEV;
432 goto out0;
433 };
434
435 /*
436 * gather resources necessary and optional nice-to-haves to
437 * operate a socket:
438 * This includes IRQs for Carddetection/ejection, the card
439 * itself and optional status change detection.
440 * Also, the memory areas covered by a socket. For these
441 * we require the 32bit "pseudo" addresses (see the au1000.h
442 * header for more information).
443 */
444
445 /* card: irq assigned to the card itself. */
446 r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "card");
447 sock->card_irq = r ? r->start : 0;
448
449 /* insert: irq which triggers on card insertion/ejection */
450 r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "insert");
451 sock->insert_irq = r ? r->start : -1;
452
453 /* stschg: irq which trigger on card status change (optional) */
454 r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "stschg");
455 sock->stschg_irq = r ? r->start : -1;
456
457 /* eject: irq which triggers on ejection (DB1200/PB1200 only) */
458 r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "eject");
459 sock->eject_irq = r ? r->start : -1;
460
461 ret = -ENODEV;
462
463 /*
464 * pseudo-attr: The 32bit address of the PCMCIA attribute space
465 * for this socket (usually the 36bit address shifted 4 to the
466 * right).
467 */
468 r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pseudo-attr");
469 if (!r) {
470 printk(KERN_ERR "pcmcia%d has no 'pseudo-attr' resource!\n",
471 sock->nr);
472 goto out0;
473 }
474 sock->phys_attr = r->start;
475
476 /*
477 * pseudo-mem: The 32bit address of the PCMCIA memory space for
478 * this socket (usually the 36bit address shifted 4 to the right)
479 */
480 r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pseudo-mem");
481 if (!r) {
482 printk(KERN_ERR "pcmcia%d has no 'pseudo-mem' resource!\n",
483 sock->nr);
484 goto out0;
485 }
486 sock->phys_mem = r->start;
487
488 /*
489 * pseudo-io: The 32bit address of the PCMCIA IO space for this
490 * socket (usually the 36bit address shifted 4 to the right).
491 */
492 r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pseudo-io");
493 if (!r) {
494 printk(KERN_ERR "pcmcia%d has no 'pseudo-io' resource!\n",
495 sock->nr);
496 goto out0;
497 }
498 sock->phys_io = r->start;
499
500
501 /* IO: we must remap the full 36bit address (for reference see
502 * alchemy/common/setup.c::__fixup_bigphys_addr())
503 */
504 physio = ((phys_t)sock->phys_io) << 4;
505
506 /*
507 * PCMCIA client drivers use the inb/outb macros to access
508 * the IO registers. Since mips_io_port_base is added
509 * to the access address of the mips implementation of
510 * inb/outb, we need to subtract it here because we want
511 * to access the I/O or MEM address directly, without
512 * going through this "mips_io_port_base" mechanism.
513 */
514 sock->virt_io = (void *)(ioremap(physio, IO_MAP_SIZE) -
515 mips_io_port_base);
516
517 if (!sock->virt_io) {
518 printk(KERN_ERR "pcmcia%d: cannot remap IO area\n",
519 sock->nr);
520 ret = -ENOMEM;
521 goto out0;
522 }
523
524 sock->socket.ops = &db1x_pcmcia_operations;
525 sock->socket.owner = THIS_MODULE;
526 sock->socket.pci_irq = sock->card_irq;
527 sock->socket.features = SS_CAP_STATIC_MAP | SS_CAP_PCCARD;
528 sock->socket.map_size = MEM_MAP_SIZE;
529 sock->socket.io_offset = (unsigned long)sock->virt_io;
530 sock->socket.dev.parent = &pdev->dev;
531 sock->socket.resource_ops = &pccard_static_ops;
532
533 platform_set_drvdata(pdev, sock);
534
535 ret = db1x_pcmcia_setup_irqs(sock);
536 if (ret) {
537 printk(KERN_ERR "pcmcia%d cannot setup interrupts\n",
538 sock->nr);
539 goto out1;
540 }
541
542 set_stschg(sock, 0);
543
544 ret = pcmcia_register_socket(&sock->socket);
545 if (ret) {
546 printk(KERN_ERR "pcmcia%d failed to register\n", sock->nr);
547 goto out2;
548 }
549
550 printk(KERN_INFO "Alchemy Db/Pb1xxx pcmcia%d @ io/attr/mem %08lx"
551 "(%p) %08lx %08lx card/insert/stschg/eject irqs @ %d "
552 "%d %d %d\n", sock->nr, sock->phys_io, sock->virt_io,
553 sock->phys_attr, sock->phys_mem, sock->card_irq,
554 sock->insert_irq, sock->stschg_irq, sock->eject_irq);
555
556 return 0;
557
558out2:
559 db1x_pcmcia_free_irqs(sock);
560out1:
561 iounmap((void *)(sock->virt_io + (u32)mips_io_port_base));
562out0:
563 kfree(sock);
564 return ret;
565}
566
567static int __devexit db1x_pcmcia_socket_remove(struct platform_device *pdev)
568{
569 struct db1x_pcmcia_sock *sock = platform_get_drvdata(pdev);
570
571 db1x_pcmcia_free_irqs(sock);
572 pcmcia_unregister_socket(&sock->socket);
573 iounmap((void *)(sock->virt_io + (u32)mips_io_port_base));
574 kfree(sock);
575
576 return 0;
577}
578
579#ifdef CONFIG_PM
580static int db1x_pcmcia_suspend(struct device *dev)
581{
582 return pcmcia_socket_dev_suspend(dev);
583}
584
585static int db1x_pcmcia_resume(struct device *dev)
586{
587 return pcmcia_socket_dev_resume(dev);
588}
589
590static struct dev_pm_ops db1x_pcmcia_pmops = {
591 .resume = db1x_pcmcia_resume,
592 .suspend = db1x_pcmcia_suspend,
593 .thaw = db1x_pcmcia_resume,
594 .freeze = db1x_pcmcia_suspend,
595};
596
597#define DB1XXX_SS_PMOPS &db1x_pcmcia_pmops
598
599#else
600
601#define DB1XXX_SS_PMOPS NULL
602
603#endif
604
605static struct platform_driver db1x_pcmcia_socket_driver = {
606 .driver = {
607 .name = "db1xxx_pcmcia",
608 .owner = THIS_MODULE,
609 .pm = DB1XXX_SS_PMOPS
610 },
611 .probe = db1x_pcmcia_socket_probe,
612 .remove = __devexit_p(db1x_pcmcia_socket_remove),
613};
614
615int __init db1x_pcmcia_socket_load(void)
616{
617 return platform_driver_register(&db1x_pcmcia_socket_driver);
618}
619
620void __exit db1x_pcmcia_socket_unload(void)
621{
622 platform_driver_unregister(&db1x_pcmcia_socket_driver);
623}
624
625module_init(db1x_pcmcia_socket_load);
626module_exit(db1x_pcmcia_socket_unload);
627
628MODULE_LICENSE("GPL");
629MODULE_DESCRIPTION("PCMCIA Socket Services for Alchemy Db/Pb1x00 boards");
630MODULE_AUTHOR("Manuel Lauss");
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-28 16:07:06 -0500