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-rw-r--r--arch/mips/bcm63xx/Makefile2
-rw-r--r--arch/mips/bcm63xx/boards/board_bcm963xx.c4
-rw-r--r--arch/mips/bcm63xx/dev-pcmcia.c144
-rw-r--r--arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_pcmcia.h13
-rw-r--r--drivers/pcmcia/Kconfig4
-rw-r--r--drivers/pcmcia/Makefile1
-rw-r--r--drivers/pcmcia/bcm63xx_pcmcia.c536
-rw-r--r--drivers/pcmcia/bcm63xx_pcmcia.h60
8 files changed, 763 insertions, 1 deletions
diff --git a/arch/mips/bcm63xx/Makefile b/arch/mips/bcm63xx/Makefile
index cff75de8449b..c146d1ededed 100644
--- a/arch/mips/bcm63xx/Makefile
+++ b/arch/mips/bcm63xx/Makefile
@@ -1,5 +1,5 @@
1obj-y += clk.o cpu.o cs.o gpio.o irq.o prom.o setup.o timer.o \ 1obj-y += clk.o cpu.o cs.o gpio.o irq.o prom.o setup.o timer.o \
2 dev-dsp.o dev-enet.o dev-uart.o 2 dev-dsp.o dev-enet.o dev-pcmcia.o dev-uart.o
3obj-$(CONFIG_EARLY_PRINTK) += early_printk.o 3obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
4 4
5obj-y += boards/ 5obj-y += boards/
diff --git a/arch/mips/bcm63xx/boards/board_bcm963xx.c b/arch/mips/bcm63xx/boards/board_bcm963xx.c
index 5a327f3a7167..78e155d21be6 100644
--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
@@ -23,6 +23,7 @@
23#include <bcm63xx_dev_pci.h> 23#include <bcm63xx_dev_pci.h>
24#include <bcm63xx_dev_enet.h> 24#include <bcm63xx_dev_enet.h>
25#include <bcm63xx_dev_dsp.h> 25#include <bcm63xx_dev_dsp.h>
26#include <bcm63xx_dev_pcmcia.h>
26#include <bcm63xx_dev_uart.h> 27#include <bcm63xx_dev_uart.h>
27#include <board_bcm963xx.h> 28#include <board_bcm963xx.h>
28 29
@@ -795,6 +796,9 @@ int __init board_register_devices(void)
795 796
796 bcm63xx_uart_register(); 797 bcm63xx_uart_register();
797 798
799 if (board.has_pccard)
800 bcm63xx_pcmcia_register();
801
798 if (board.has_enet0 && 802 if (board.has_enet0 &&
799 !board_get_mac_address(board.enet0.mac_addr)) 803 !board_get_mac_address(board.enet0.mac_addr))
800 bcm63xx_enet_register(0, &board.enet0); 804 bcm63xx_enet_register(0, &board.enet0);
diff --git a/arch/mips/bcm63xx/dev-pcmcia.c b/arch/mips/bcm63xx/dev-pcmcia.c
new file mode 100644
index 000000000000..de4d917fd54d
--- /dev/null
+++ b/arch/mips/bcm63xx/dev-pcmcia.c
@@ -0,0 +1,144 @@
1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
7 */
8
9#include <linux/init.h>
10#include <linux/kernel.h>
11#include <asm/bootinfo.h>
12#include <linux/platform_device.h>
13#include <bcm63xx_cs.h>
14#include <bcm63xx_cpu.h>
15#include <bcm63xx_dev_pcmcia.h>
16#include <bcm63xx_io.h>
17#include <bcm63xx_regs.h>
18
19static struct resource pcmcia_resources[] = {
20 /* pcmcia registers */
21 {
22 /* start & end filled at runtime */
23 .flags = IORESOURCE_MEM,
24 },
25
26 /* pcmcia memory zone resources */
27 {
28 .start = BCM_PCMCIA_COMMON_BASE_PA,
29 .end = BCM_PCMCIA_COMMON_END_PA,
30 .flags = IORESOURCE_MEM,
31 },
32 {
33 .start = BCM_PCMCIA_ATTR_BASE_PA,
34 .end = BCM_PCMCIA_ATTR_END_PA,
35 .flags = IORESOURCE_MEM,
36 },
37 {
38 .start = BCM_PCMCIA_IO_BASE_PA,
39 .end = BCM_PCMCIA_IO_END_PA,
40 .flags = IORESOURCE_MEM,
41 },
42
43 /* PCMCIA irq */
44 {
45 /* start filled at runtime */
46 .flags = IORESOURCE_IRQ,
47 },
48
49 /* declare PCMCIA IO resource also */
50 {
51 .start = BCM_PCMCIA_IO_BASE_PA,
52 .end = BCM_PCMCIA_IO_END_PA,
53 .flags = IORESOURCE_IO,
54 },
55};
56
57static struct bcm63xx_pcmcia_platform_data pd;
58
59static struct platform_device bcm63xx_pcmcia_device = {
60 .name = "bcm63xx_pcmcia",
61 .id = 0,
62 .num_resources = ARRAY_SIZE(pcmcia_resources),
63 .resource = pcmcia_resources,
64 .dev = {
65 .platform_data = &pd,
66 },
67};
68
69static int __init config_pcmcia_cs(unsigned int cs,
70 u32 base, unsigned int size)
71{
72 int ret;
73
74 ret = bcm63xx_set_cs_status(cs, 0);
75 if (!ret)
76 ret = bcm63xx_set_cs_base(cs, base, size);
77 if (!ret)
78 ret = bcm63xx_set_cs_status(cs, 1);
79 return ret;
80}
81
82static const __initdata struct {
83 unsigned int cs;
84 unsigned int base;
85 unsigned int size;
86} pcmcia_cs[3] = {
87 {
88 .cs = MPI_CS_PCMCIA_COMMON,
89 .base = BCM_PCMCIA_COMMON_BASE_PA,
90 .size = BCM_PCMCIA_COMMON_SIZE
91 },
92 {
93 .cs = MPI_CS_PCMCIA_ATTR,
94 .base = BCM_PCMCIA_ATTR_BASE_PA,
95 .size = BCM_PCMCIA_ATTR_SIZE
96 },
97 {
98 .cs = MPI_CS_PCMCIA_IO,
99 .base = BCM_PCMCIA_IO_BASE_PA,
100 .size = BCM_PCMCIA_IO_SIZE
101 },
102};
103
104int __init bcm63xx_pcmcia_register(void)
105{
106 int ret, i;
107
108 if (!BCMCPU_IS_6348() && !BCMCPU_IS_6358())
109 return 0;
110
111 /* use correct pcmcia ready gpio depending on processor */
112 switch (bcm63xx_get_cpu_id()) {
113 case BCM6348_CPU_ID:
114 pd.ready_gpio = 22;
115 break;
116
117 case BCM6358_CPU_ID:
118 pd.ready_gpio = 18;
119 break;
120
121 default:
122 return -ENODEV;
123 }
124
125 pcmcia_resources[0].start = bcm63xx_regset_address(RSET_PCMCIA);
126 pcmcia_resources[0].end = pcmcia_resources[0].start +
127 RSET_PCMCIA_SIZE - 1;
128 pcmcia_resources[4].start = bcm63xx_get_irq_number(IRQ_PCMCIA);
129
130 /* configure pcmcia chip selects */
131 for (i = 0; i < 3; i++) {
132 ret = config_pcmcia_cs(pcmcia_cs[i].cs,
133 pcmcia_cs[i].base,
134 pcmcia_cs[i].size);
135 if (ret)
136 goto out_err;
137 }
138
139 return platform_device_register(&bcm63xx_pcmcia_device);
140
141out_err:
142 printk(KERN_ERR "unable to set pcmcia chip select\n");
143 return ret;
144}
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_pcmcia.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_pcmcia.h
new file mode 100644
index 000000000000..2beb3969ce3b
--- /dev/null
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_pcmcia.h
@@ -0,0 +1,13 @@
1#ifndef BCM63XX_DEV_PCMCIA_H_
2#define BCM63XX_DEV_PCMCIA_H_
3
4/*
5 * PCMCIA driver platform data
6 */
7struct bcm63xx_pcmcia_platform_data {
8 unsigned int ready_gpio;
9};
10
11int bcm63xx_pcmcia_register(void);
12
13#endif /* BCM63XX_DEV_PCMCIA_H_ */
diff --git a/drivers/pcmcia/Kconfig b/drivers/pcmcia/Kconfig
index fbf965b31c14..17f38a781d47 100644
--- a/drivers/pcmcia/Kconfig
+++ b/drivers/pcmcia/Kconfig
@@ -192,6 +192,10 @@ config PCMCIA_AU1X00
192 tristate "Au1x00 pcmcia support" 192 tristate "Au1x00 pcmcia support"
193 depends on SOC_AU1X00 && PCMCIA 193 depends on SOC_AU1X00 && PCMCIA
194 194
195config PCMCIA_BCM63XX
196 tristate "bcm63xx pcmcia support"
197 depends on BCM63XX && PCMCIA
198
195config PCMCIA_SA1100 199config PCMCIA_SA1100
196 tristate "SA1100 support" 200 tristate "SA1100 support"
197 depends on ARM && ARCH_SA1100 && PCMCIA 201 depends on ARM && ARCH_SA1100 && PCMCIA
diff --git a/drivers/pcmcia/Makefile b/drivers/pcmcia/Makefile
index 3247828aa203..a03a38acd77d 100644
--- a/drivers/pcmcia/Makefile
+++ b/drivers/pcmcia/Makefile
@@ -27,6 +27,7 @@ obj-$(CONFIG_PCMCIA_SA1111) += sa11xx_core.o sa1111_cs.o
27obj-$(CONFIG_M32R_PCC) += m32r_pcc.o 27obj-$(CONFIG_M32R_PCC) += m32r_pcc.o
28obj-$(CONFIG_M32R_CFC) += m32r_cfc.o 28obj-$(CONFIG_M32R_CFC) += m32r_cfc.o
29obj-$(CONFIG_PCMCIA_AU1X00) += au1x00_ss.o 29obj-$(CONFIG_PCMCIA_AU1X00) += au1x00_ss.o
30obj-$(CONFIG_PCMCIA_BCM63XX) += bcm63xx_pcmcia.o
30obj-$(CONFIG_PCMCIA_VRC4171) += vrc4171_card.o 31obj-$(CONFIG_PCMCIA_VRC4171) += vrc4171_card.o
31obj-$(CONFIG_PCMCIA_VRC4173) += vrc4173_cardu.o 32obj-$(CONFIG_PCMCIA_VRC4173) += vrc4173_cardu.o
32obj-$(CONFIG_OMAP_CF) += omap_cf.o 33obj-$(CONFIG_OMAP_CF) += omap_cf.o
diff --git a/drivers/pcmcia/bcm63xx_pcmcia.c b/drivers/pcmcia/bcm63xx_pcmcia.c
new file mode 100644
index 000000000000..bc88a3b19bb3
--- /dev/null
+++ b/drivers/pcmcia/bcm63xx_pcmcia.c
@@ -0,0 +1,536 @@
1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
7 */
8
9#include <linux/kernel.h>
10#include <linux/module.h>
11#include <linux/ioport.h>
12#include <linux/timer.h>
13#include <linux/platform_device.h>
14#include <linux/delay.h>
15#include <linux/pci.h>
16#include <linux/gpio.h>
17
18#include <bcm63xx_regs.h>
19#include <bcm63xx_io.h>
20#include "bcm63xx_pcmcia.h"
21
22#define PFX "bcm63xx_pcmcia: "
23
24#ifdef CONFIG_CARDBUS
25/* if cardbus is used, platform device needs reference to actual pci
26 * device */
27static struct pci_dev *bcm63xx_cb_dev;
28#endif
29
30/*
31 * read/write helper for pcmcia regs
32 */
33static inline u32 pcmcia_readl(struct bcm63xx_pcmcia_socket *skt, u32 off)
34{
35 return bcm_readl(skt->base + off);
36}
37
38static inline void pcmcia_writel(struct bcm63xx_pcmcia_socket *skt,
39 u32 val, u32 off)
40{
41 bcm_writel(val, skt->base + off);
42}
43
44/*
45 * This callback should (re-)initialise the socket, turn on status
46 * interrupts and PCMCIA bus, and wait for power to stabilise so that
47 * the card status signals report correctly.
48 *
49 * Hardware cannot do that.
50 */
51static int bcm63xx_pcmcia_sock_init(struct pcmcia_socket *sock)
52{
53 return 0;
54}
55
56/*
57 * This callback should remove power on the socket, disable IRQs from
58 * the card, turn off status interrupts, and disable the PCMCIA bus.
59 *
60 * Hardware cannot do that.
61 */
62static int bcm63xx_pcmcia_suspend(struct pcmcia_socket *sock)
63{
64 return 0;
65}
66
67/*
68 * Implements the set_socket() operation for the in-kernel PCMCIA
69 * service (formerly SS_SetSocket in Card Services). We more or
70 * less punt all of this work and let the kernel handle the details
71 * of power configuration, reset, &c. We also record the value of
72 * `state' in order to regurgitate it to the PCMCIA core later.
73 */
74static int bcm63xx_pcmcia_set_socket(struct pcmcia_socket *sock,
75 socket_state_t *state)
76{
77 struct bcm63xx_pcmcia_socket *skt;
78 unsigned long flags;
79 u32 val;
80
81 skt = sock->driver_data;
82
83 spin_lock_irqsave(&skt->lock, flags);
84
85 /* note: hardware cannot control socket power, so we will
86 * always report SS_POWERON */
87
88 /* apply socket reset */
89 val = pcmcia_readl(skt, PCMCIA_C1_REG);
90 if (state->flags & SS_RESET)
91 val |= PCMCIA_C1_RESET_MASK;
92 else
93 val &= ~PCMCIA_C1_RESET_MASK;
94
95 /* reverse reset logic for cardbus card */
96 if (skt->card_detected && (skt->card_type & CARD_CARDBUS))
97 val ^= PCMCIA_C1_RESET_MASK;
98
99 pcmcia_writel(skt, val, PCMCIA_C1_REG);
100
101 /* keep requested state for event reporting */
102 skt->requested_state = *state;
103
104 spin_unlock_irqrestore(&skt->lock, flags);
105
106 return 0;
107}
108
109/*
110 * identity cardtype from VS[12] input, CD[12] input while only VS2 is
111 * floating, and CD[12] input while only VS1 is floating
112 */
113enum {
114 IN_VS1 = (1 << 0),
115 IN_VS2 = (1 << 1),
116 IN_CD1_VS2H = (1 << 2),
117 IN_CD2_VS2H = (1 << 3),
118 IN_CD1_VS1H = (1 << 4),
119 IN_CD2_VS1H = (1 << 5),
120};
121
122static const u8 vscd_to_cardtype[] = {
123
124 /* VS1 float, VS2 float */
125 [IN_VS1 | IN_VS2] = (CARD_PCCARD | CARD_5V),
126
127 /* VS1 grounded, VS2 float */
128 [IN_VS2] = (CARD_PCCARD | CARD_5V | CARD_3V),
129
130 /* VS1 grounded, VS2 grounded */
131 [0] = (CARD_PCCARD | CARD_5V | CARD_3V | CARD_XV),
132
133 /* VS1 tied to CD1, VS2 float */
134 [IN_VS1 | IN_VS2 | IN_CD1_VS1H] = (CARD_CARDBUS | CARD_3V),
135
136 /* VS1 grounded, VS2 tied to CD2 */
137 [IN_VS2 | IN_CD2_VS2H] = (CARD_CARDBUS | CARD_3V | CARD_XV),
138
139 /* VS1 tied to CD2, VS2 grounded */
140 [IN_VS1 | IN_CD2_VS1H] = (CARD_CARDBUS | CARD_3V | CARD_XV | CARD_YV),
141
142 /* VS1 float, VS2 grounded */
143 [IN_VS1] = (CARD_PCCARD | CARD_XV),
144
145 /* VS1 float, VS2 tied to CD2 */
146 [IN_VS1 | IN_VS2 | IN_CD2_VS2H] = (CARD_CARDBUS | CARD_3V),
147
148 /* VS1 float, VS2 tied to CD1 */
149 [IN_VS1 | IN_VS2 | IN_CD1_VS2H] = (CARD_CARDBUS | CARD_XV | CARD_YV),
150
151 /* VS1 tied to CD2, VS2 float */
152 [IN_VS1 | IN_VS2 | IN_CD2_VS1H] = (CARD_CARDBUS | CARD_YV),
153
154 /* VS2 grounded, VS1 is tied to CD1, CD2 is grounded */
155 [IN_VS1 | IN_CD1_VS1H] = 0, /* ignore cardbay */
156};
157
158/*
159 * poll hardware to check card insertion status
160 */
161static unsigned int __get_socket_status(struct bcm63xx_pcmcia_socket *skt)
162{
163 unsigned int stat;
164 u32 val;
165
166 stat = 0;
167
168 /* check CD for card presence */
169 val = pcmcia_readl(skt, PCMCIA_C1_REG);
170
171 if (!(val & PCMCIA_C1_CD1_MASK) && !(val & PCMCIA_C1_CD2_MASK))
172 stat |= SS_DETECT;
173
174 /* if new insertion, detect cardtype */
175 if ((stat & SS_DETECT) && !skt->card_detected) {
176 unsigned int stat = 0;
177
178 /* float VS1, float VS2 */
179 val |= PCMCIA_C1_VS1OE_MASK;
180 val |= PCMCIA_C1_VS2OE_MASK;
181 pcmcia_writel(skt, val, PCMCIA_C1_REG);
182
183 /* wait for output to stabilize and read VS[12] */
184 udelay(10);
185 val = pcmcia_readl(skt, PCMCIA_C1_REG);
186 stat |= (val & PCMCIA_C1_VS1_MASK) ? IN_VS1 : 0;
187 stat |= (val & PCMCIA_C1_VS2_MASK) ? IN_VS2 : 0;
188
189 /* drive VS1 low, float VS2 */
190 val &= ~PCMCIA_C1_VS1OE_MASK;
191 val |= PCMCIA_C1_VS2OE_MASK;
192 pcmcia_writel(skt, val, PCMCIA_C1_REG);
193
194 /* wait for output to stabilize and read CD[12] */
195 udelay(10);
196 val = pcmcia_readl(skt, PCMCIA_C1_REG);
197 stat |= (val & PCMCIA_C1_CD1_MASK) ? IN_CD1_VS2H : 0;
198 stat |= (val & PCMCIA_C1_CD2_MASK) ? IN_CD2_VS2H : 0;
199
200 /* float VS1, drive VS2 low */
201 val |= PCMCIA_C1_VS1OE_MASK;
202 val &= ~PCMCIA_C1_VS2OE_MASK;
203 pcmcia_writel(skt, val, PCMCIA_C1_REG);
204
205 /* wait for output to stabilize and read CD[12] */
206 udelay(10);
207 val = pcmcia_readl(skt, PCMCIA_C1_REG);
208 stat |= (val & PCMCIA_C1_CD1_MASK) ? IN_CD1_VS1H : 0;
209 stat |= (val & PCMCIA_C1_CD2_MASK) ? IN_CD2_VS1H : 0;
210
211 /* guess cardtype from all this */
212 skt->card_type = vscd_to_cardtype[stat];
213 if (!skt->card_type)
214 dev_err(&skt->socket.dev, "unsupported card type\n");
215
216 /* drive both VS pin to 0 again */
217 val &= ~(PCMCIA_C1_VS1OE_MASK | PCMCIA_C1_VS2OE_MASK);
218
219 /* enable correct logic */
220 val &= ~(PCMCIA_C1_EN_PCMCIA_MASK | PCMCIA_C1_EN_CARDBUS_MASK);
221 if (skt->card_type & CARD_PCCARD)
222 val |= PCMCIA_C1_EN_PCMCIA_MASK;
223 else
224 val |= PCMCIA_C1_EN_CARDBUS_MASK;
225
226 pcmcia_writel(skt, val, PCMCIA_C1_REG);
227 }
228 skt->card_detected = (stat & SS_DETECT) ? 1 : 0;
229
230 /* report card type/voltage */
231 if (skt->card_type & CARD_CARDBUS)
232 stat |= SS_CARDBUS;
233 if (skt->card_type & CARD_3V)
234 stat |= SS_3VCARD;
235 if (skt->card_type & CARD_XV)
236 stat |= SS_XVCARD;
237 stat |= SS_POWERON;
238
239 if (gpio_get_value(skt->pd->ready_gpio))
240 stat |= SS_READY;
241
242 return stat;
243}
244
245/*
246 * core request to get current socket status
247 */
248static int bcm63xx_pcmcia_get_status(struct pcmcia_socket *sock,
249 unsigned int *status)
250{
251 struct bcm63xx_pcmcia_socket *skt;
252
253 skt = sock->driver_data;
254
255 spin_lock_bh(&skt->lock);
256 *status = __get_socket_status(skt);
257 spin_unlock_bh(&skt->lock);
258
259 return 0;
260}
261
262/*
263 * socket polling timer callback
264 */
265static void bcm63xx_pcmcia_poll(unsigned long data)
266{
267 struct bcm63xx_pcmcia_socket *skt;
268 unsigned int stat, events;
269
270 skt = (struct bcm63xx_pcmcia_socket *)data;
271
272 spin_lock_bh(&skt->lock);
273
274 stat = __get_socket_status(skt);
275
276 /* keep only changed bits, and mask with required one from the
277 * core */
278 events = (stat ^ skt->old_status) & skt->requested_state.csc_mask;
279 skt->old_status = stat;
280 spin_unlock_bh(&skt->lock);
281
282 if (events)
283 pcmcia_parse_events(&skt->socket, events);
284
285 mod_timer(&skt->timer,
286 jiffies + msecs_to_jiffies(BCM63XX_PCMCIA_POLL_RATE));
287}
288
289static int bcm63xx_pcmcia_set_io_map(struct pcmcia_socket *sock,
290 struct pccard_io_map *map)
291{
292 /* this doesn't seem to be called by pcmcia layer if static
293 * mapping is used */
294 return 0;
295}
296
297static int bcm63xx_pcmcia_set_mem_map(struct pcmcia_socket *sock,
298 struct pccard_mem_map *map)
299{
300 struct bcm63xx_pcmcia_socket *skt;
301 struct resource *res;
302
303 skt = sock->driver_data;
304 if (map->flags & MAP_ATTRIB)
305 res = skt->attr_res;
306 else
307 res = skt->common_res;
308
309 map->static_start = res->start + map->card_start;
310 return 0;
311}
312
313static struct pccard_operations bcm63xx_pcmcia_operations = {
314 .init = bcm63xx_pcmcia_sock_init,
315 .suspend = bcm63xx_pcmcia_suspend,
316 .get_status = bcm63xx_pcmcia_get_status,
317 .set_socket = bcm63xx_pcmcia_set_socket,
318 .set_io_map = bcm63xx_pcmcia_set_io_map,
319 .set_mem_map = bcm63xx_pcmcia_set_mem_map,
320};
321
322/*
323 * register pcmcia socket to core
324 */
325static int __devinit bcm63xx_drv_pcmcia_probe(struct platform_device *pdev)
326{
327 struct bcm63xx_pcmcia_socket *skt;
328 struct pcmcia_socket *sock;
329 struct resource *res, *irq_res;
330 unsigned int regmem_size = 0, iomem_size = 0;
331 u32 val;
332 int ret;
333
334 skt = kzalloc(sizeof(*skt), GFP_KERNEL);
335 if (!skt)
336 return -ENOMEM;
337 spin_lock_init(&skt->lock);
338 sock = &skt->socket;
339 sock->driver_data = skt;
340
341 /* make sure we have all resources we need */
342 skt->common_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
343 skt->attr_res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
344 irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
345 skt->pd = pdev->dev.platform_data;
346 if (!skt->common_res || !skt->attr_res || !irq_res || !skt->pd) {
347 ret = -EINVAL;
348 goto err;
349 }
350
351 /* remap pcmcia registers */
352 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
353 regmem_size = resource_size(res);
354 if (!request_mem_region(res->start, regmem_size, "bcm63xx_pcmcia")) {
355 ret = -EINVAL;
356 goto err;
357 }
358 skt->reg_res = res;
359
360 skt->base = ioremap(res->start, regmem_size);
361 if (!skt->base) {
362 ret = -ENOMEM;
363 goto err;
364 }
365
366 /* remap io registers */
367 res = platform_get_resource(pdev, IORESOURCE_MEM, 3);
368 iomem_size = resource_size(res);
369 skt->io_base = ioremap(res->start, iomem_size);
370 if (!skt->io_base) {
371 ret = -ENOMEM;
372 goto err;
373 }
374
375 /* resources are static */
376 sock->resource_ops = &pccard_static_ops;
377 sock->ops = &bcm63xx_pcmcia_operations;
378 sock->owner = THIS_MODULE;
379 sock->dev.parent = &pdev->dev;
380 sock->features = SS_CAP_STATIC_MAP | SS_CAP_PCCARD;
381 sock->io_offset = (unsigned long)skt->io_base;
382 sock->pci_irq = irq_res->start;
383
384#ifdef CONFIG_CARDBUS
385 sock->cb_dev = bcm63xx_cb_dev;
386 if (bcm63xx_cb_dev)
387 sock->features |= SS_CAP_CARDBUS;
388#endif
389
390 /* assume common & attribute memory have the same size */
391 sock->map_size = resource_size(skt->common_res);
392
393 /* initialize polling timer */
394 setup_timer(&skt->timer, bcm63xx_pcmcia_poll, (unsigned long)skt);
395
396 /* initialize pcmcia control register, drive VS[12] to 0,
397 * leave CB IDSEL to the old value since it is set by the PCI
398 * layer */
399 val = pcmcia_readl(skt, PCMCIA_C1_REG);
400 val &= PCMCIA_C1_CBIDSEL_MASK;
401 val |= PCMCIA_C1_EN_PCMCIA_GPIO_MASK;
402 pcmcia_writel(skt, val, PCMCIA_C1_REG);
403
404 /*
405 * Hardware has only one set of timings registers, not one for
406 * each memory access type, so we configure them for the
407 * slowest one: attribute memory.
408 */
409 val = PCMCIA_C2_DATA16_MASK;
410 val |= 10 << PCMCIA_C2_RWCOUNT_SHIFT;
411 val |= 6 << PCMCIA_C2_INACTIVE_SHIFT;
412 val |= 3 << PCMCIA_C2_SETUP_SHIFT;
413 val |= 3 << PCMCIA_C2_HOLD_SHIFT;
414 pcmcia_writel(skt, val, PCMCIA_C2_REG);
415
416 ret = pcmcia_register_socket(sock);
417 if (ret)
418 goto err;
419
420 /* start polling socket */
421 mod_timer(&skt->timer,
422 jiffies + msecs_to_jiffies(BCM63XX_PCMCIA_POLL_RATE));
423
424 platform_set_drvdata(pdev, skt);
425 return 0;
426
427err:
428 if (skt->io_base)
429 iounmap(skt->io_base);
430 if (skt->base)
431 iounmap(skt->base);
432 if (skt->reg_res)
433 release_mem_region(skt->reg_res->start, regmem_size);
434 kfree(skt);
435 return ret;
436}
437
438static int __devexit bcm63xx_drv_pcmcia_remove(struct platform_device *pdev)
439{
440 struct bcm63xx_pcmcia_socket *skt;
441 struct resource *res;
442
443 skt = platform_get_drvdata(pdev);
444 del_timer_sync(&skt->timer);
445 iounmap(skt->base);
446 iounmap(skt->io_base);
447 res = skt->reg_res;
448 release_mem_region(res->start, resource_size(res));
449 kfree(skt);
450 return 0;
451}
452
453struct platform_driver bcm63xx_pcmcia_driver = {
454 .probe = bcm63xx_drv_pcmcia_probe,
455 .remove = __devexit_p(bcm63xx_drv_pcmcia_remove),
456 .driver = {
457 .name = "bcm63xx_pcmcia",
458 .owner = THIS_MODULE,
459 },
460};
461
462#ifdef CONFIG_CARDBUS
463static int __devinit bcm63xx_cb_probe(struct pci_dev *dev,
464 const struct pci_device_id *id)
465{
466 /* keep pci device */
467 bcm63xx_cb_dev = dev;
468 return platform_driver_register(&bcm63xx_pcmcia_driver);
469}
470
471static void __devexit bcm63xx_cb_exit(struct pci_dev *dev)
472{
473 platform_driver_unregister(&bcm63xx_pcmcia_driver);
474 bcm63xx_cb_dev = NULL;
475}
476
477static struct pci_device_id bcm63xx_cb_table[] = {
478 {
479 .vendor = PCI_VENDOR_ID_BROADCOM,
480 .device = BCM6348_CPU_ID,
481 .subvendor = PCI_VENDOR_ID_BROADCOM,
482 .subdevice = PCI_ANY_ID,
483 .class = PCI_CLASS_BRIDGE_CARDBUS << 8,
484 .class_mask = ~0,
485 },
486
487 {
488 .vendor = PCI_VENDOR_ID_BROADCOM,
489 .device = BCM6358_CPU_ID,
490 .subvendor = PCI_VENDOR_ID_BROADCOM,
491 .subdevice = PCI_ANY_ID,
492 .class = PCI_CLASS_BRIDGE_CARDBUS << 8,
493 .class_mask = ~0,
494 },
495
496 { },
497};
498
499MODULE_DEVICE_TABLE(pci, bcm63xx_cb_table);
500
501static struct pci_driver bcm63xx_cardbus_driver = {
502 .name = "bcm63xx_cardbus",
503 .id_table = bcm63xx_cb_table,
504 .probe = bcm63xx_cb_probe,
505 .remove = __devexit_p(bcm63xx_cb_exit),
506};
507#endif
508
509/*
510 * if cardbus support is enabled, register our platform device after
511 * our fake cardbus bridge has been registered
512 */
513static int __init bcm63xx_pcmcia_init(void)
514{
515#ifdef CONFIG_CARDBUS
516 return pci_register_driver(&bcm63xx_cardbus_driver);
517#else
518 return platform_driver_register(&bcm63xx_pcmcia_driver);
519#endif
520}
521
522static void __exit bcm63xx_pcmcia_exit(void)
523{
524#ifdef CONFIG_CARDBUS
525 return pci_unregister_driver(&bcm63xx_cardbus_driver);
526#else
527 platform_driver_unregister(&bcm63xx_pcmcia_driver);
528#endif
529}
530
531module_init(bcm63xx_pcmcia_init);
532module_exit(bcm63xx_pcmcia_exit);
533
534MODULE_LICENSE("GPL");
535MODULE_AUTHOR("Maxime Bizon <mbizon@freebox.fr>");
536MODULE_DESCRIPTION("Linux PCMCIA Card Services: bcm63xx Socket Controller");
diff --git a/drivers/pcmcia/bcm63xx_pcmcia.h b/drivers/pcmcia/bcm63xx_pcmcia.h
new file mode 100644
index 000000000000..ed957399d863
--- /dev/null
+++ b/drivers/pcmcia/bcm63xx_pcmcia.h
@@ -0,0 +1,60 @@
1#ifndef BCM63XX_PCMCIA_H_
2#define BCM63XX_PCMCIA_H_
3
4#include <linux/types.h>
5#include <linux/timer.h>
6#include <pcmcia/ss.h>
7#include <bcm63xx_dev_pcmcia.h>
8
9/* socket polling rate in ms */
10#define BCM63XX_PCMCIA_POLL_RATE 500
11
12enum {
13 CARD_CARDBUS = (1 << 0),
14 CARD_PCCARD = (1 << 1),
15 CARD_5V = (1 << 2),
16 CARD_3V = (1 << 3),
17 CARD_XV = (1 << 4),
18 CARD_YV = (1 << 5),
19};
20
21struct bcm63xx_pcmcia_socket {
22 struct pcmcia_socket socket;
23
24 /* platform specific data */
25 struct bcm63xx_pcmcia_platform_data *pd;
26
27 /* all regs access are protected by this spinlock */
28 spinlock_t lock;
29
30 /* pcmcia registers resource */
31 struct resource *reg_res;
32
33 /* base remapped address of registers */
34 void __iomem *base;
35
36 /* whether a card is detected at the moment */
37 int card_detected;
38
39 /* type of detected card (mask of above enum) */
40 u8 card_type;
41
42 /* keep last socket status to implement event reporting */
43 unsigned int old_status;
44
45 /* backup of requested socket state */
46 socket_state_t requested_state;
47
48 /* timer used for socket status polling */
49 struct timer_list timer;
50
51 /* attribute/common memory resources */
52 struct resource *attr_res;
53 struct resource *common_res;
54 struct resource *io_res;
55
56 /* base address of io memory */
57 void __iomem *io_base;
58};
59
60#endif /* BCM63XX_PCMCIA_H_ */
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-12 12:55:07 -0500