3 * Alchemy Semi Pb1x00 boards specific pcmcia routines.
5 * Copyright 2002 MontaVista Software Inc.
6 * Author: MontaVista Software, Inc.
7 * ppopov@mvista.com or source@mvista.com
9 * ########################################################################
11 * This program is free software; you can distribute it and/or modify it
12 * under the terms of the GNU General Public License (Version 2) as
13 * published by the Free Software Foundation.
15 * This program is distributed in the hope it will be useful, but WITHOUT
16 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
17 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
20 * You should have received a copy of the GNU General Public License along
21 * with this program; if not, write to the Free Software Foundation, Inc.,
22 * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
24 #include <linux/module.h>
25 #include <linux/init.h>
26 #include <linux/delay.h>
27 #include <linux/ioport.h>
28 #include <linux/kernel.h>
29 #include <linux/tqueue.h>
30 #include <linux/timer.h>
32 #include <linux/proc_fs.h>
33 #include <linux/types.h>
35 #include <pcmcia/version.h>
36 #include <pcmcia/cs_types.h>
37 #include <pcmcia/cs.h>
38 #include <pcmcia/ss.h>
39 #include <pcmcia/bulkmem.h>
40 #include <pcmcia/cistpl.h>
41 #include <pcmcia/bus_ops.h>
42 #include "cs_internal.h"
46 #include <asm/system.h>
48 #include <asm/au1000.h>
49 #include <asm/au1000_pcmcia.h>
51 #define debug(fmt, arg...) do { } while (0)
53 #ifdef CONFIG_MIPS_PB1000
54 #include <asm/pb1000.h>
55 #define PCMCIA_IRQ AU1000_GPIO_15
56 #elif defined (CONFIG_MIPS_PB1500)
57 #include <asm/pb1500.h>
58 #define PCMCIA_IRQ AU1000_GPIO_11 /* fixme */
59 #elif defined (CONFIG_MIPS_PB1100)
60 #include <asm/pb1100.h>
61 #define PCMCIA_IRQ AU1000_GPIO_11
64 static int pb1x00_pcmcia_init(struct pcmcia_init
*init
)
66 #ifdef CONFIG_MIPS_PB1000
68 pcr
= PCR_SLOT_0_RST
| PCR_SLOT_1_RST
;
70 au_writel(0x8000, PB1000_MDR
); /* clear pcmcia interrupt */
72 au_writel(0x4000, PB1000_MDR
); /* enable pcmcia interrupt */
75 pcr
|= SET_VCC_VPP(VCC_HIZ
,VPP_HIZ
,0);
76 pcr
|= SET_VCC_VPP(VCC_HIZ
,VPP_HIZ
,1);
77 au_writel(pcr
, PB1000_PCR
);
80 return PCMCIA_NUM_SOCKS
;
82 #else /* fixme -- take care of the Pb1500 at some point */
85 pcr
= au_readw(PB1100_MEM_PCMCIA
) & ~0xf; /* turn off power */
86 pcr
&= ~(PB1100_PC_DEASSERT_RST
| PB1100_PC_DRV_EN
);
87 au_writew(pcr
, PB1100_MEM_PCMCIA
);
89 return PCMCIA_NUM_SOCKS
;
93 static int pb1x00_pcmcia_shutdown(void)
95 #ifdef CONFIG_MIPS_PB1000
97 pcr
= PCR_SLOT_0_RST
| PCR_SLOT_1_RST
;
98 pcr
|= SET_VCC_VPP(VCC_HIZ
,VPP_HIZ
,0);
99 pcr
|= SET_VCC_VPP(VCC_HIZ
,VPP_HIZ
,1);
100 au_writel(pcr
, PB1000_PCR
);
105 pcr
= au_readw(PB1100_MEM_PCMCIA
) & ~0xf; /* turn off power */
106 pcr
&= ~(PB1100_PC_DEASSERT_RST
| PB1100_PC_DRV_EN
);
107 au_writew(pcr
, PB1100_MEM_PCMCIA
);
114 pb1x00_pcmcia_socket_state(unsigned sock
, struct pcmcia_state
*state
)
116 u32 inserted0
, inserted1
;
119 #ifdef CONFIG_MIPS_PB1000
120 vs0
= vs1
= (u16
)au_readl(PB1000_ACR1
);
121 inserted0
= !(vs0
& (ACR1_SLOT_0_CD1
| ACR1_SLOT_0_CD2
));
122 inserted1
= !(vs1
& (ACR1_SLOT_1_CD1
| ACR1_SLOT_1_CD2
));
123 vs0
= (vs0
>> 4) & 0x3;
124 vs1
= (vs1
>> 12) & 0x3;
126 vs0
= (au_readw(PB1100_BOARD_STATUS
) >> 4) & 0x3;
127 inserted0
= !((au_readl(SYS_PINSTATERD
) >> 9) & 0x1); /* gpio 9 */
145 /* return without setting 'detect' */
146 printk(KERN_ERR
"pb1x00 bad VS (%d)\n",
163 /* return without setting 'detect' */
164 printk(KERN_ERR
"pb1x00 bad VS (%d)\n",
183 static int pb1x00_pcmcia_get_irq_info(struct pcmcia_irq_info
*info
)
186 if(info
->sock
> PCMCIA_MAX_SOCK
) return -1;
189 * Even in the case of the Pb1000, both sockets are connected
190 * to the same irq line.
192 info
->irq
= PCMCIA_IRQ
;
199 pb1x00_pcmcia_configure_socket(const struct pcmcia_configure
*configure
)
203 if(configure
->sock
> PCMCIA_MAX_SOCK
) return -1;
205 #ifdef CONFIG_MIPS_PB1000
206 pcr
= au_readl(PB1000_PCR
);
208 if (configure
->sock
== 0) {
209 pcr
&= ~(PCR_SLOT_0_VCC0
| PCR_SLOT_0_VCC1
|
210 PCR_SLOT_0_VPP0
| PCR_SLOT_0_VPP1
);
213 pcr
&= ~(PCR_SLOT_1_VCC0
| PCR_SLOT_1_VCC1
|
214 PCR_SLOT_1_VPP0
| PCR_SLOT_1_VPP1
);
217 pcr
&= ~PCR_SLOT_0_RST
;
218 debug("Vcc %dV Vpp %dV, pcr %x\n",
219 configure
->vcc
, configure
->vpp
, pcr
);
220 switch(configure
->vcc
){
222 switch(configure
->vpp
) {
224 pcr
|= SET_VCC_VPP(VCC_HIZ
,VPP_GND
,
228 pcr
|= SET_VCC_VPP(VCC_HIZ
,VPP_12V
,
232 pcr
|= SET_VCC_VPP(VCC_HIZ
,VPP_5V
,
236 pcr
|= SET_VCC_VPP(VCC_HIZ
,VPP_3V
,
240 pcr
|= SET_VCC_VPP(VCC_HIZ
,VPP_HIZ
,
242 printk("%s: bad Vcc/Vpp (%d:%d)\n",
249 case 50: /* Vcc 5V */
250 switch(configure
->vpp
) {
252 pcr
|= SET_VCC_VPP(VCC_5V
,VPP_GND
,
256 pcr
|= SET_VCC_VPP(VCC_5V
,VPP_5V
,
260 pcr
|= SET_VCC_VPP(VCC_5V
,VPP_12V
,
264 pcr
|= SET_VCC_VPP(VCC_5V
,VPP_3V
,
268 pcr
|= SET_VCC_VPP(VCC_HIZ
,VPP_HIZ
,
270 printk("%s: bad Vcc/Vpp (%d:%d)\n",
277 case 33: /* Vcc 3.3V */
278 switch(configure
->vpp
) {
280 pcr
|= SET_VCC_VPP(VCC_3V
,VPP_GND
,
284 pcr
|= SET_VCC_VPP(VCC_3V
,VPP_5V
,
288 pcr
|= SET_VCC_VPP(VCC_3V
,VPP_12V
,
292 pcr
|= SET_VCC_VPP(VCC_3V
,VPP_3V
,
296 pcr
|= SET_VCC_VPP(VCC_HIZ
,VPP_HIZ
,
298 printk("%s: bad Vcc/Vpp (%d:%d)\n",
305 default: /* what's this ? */
306 pcr
|= SET_VCC_VPP(VCC_HIZ
,VPP_HIZ
,configure
->sock
);
307 printk(KERN_ERR
"%s: bad Vcc %d\n",
308 __FUNCTION__
, configure
->vcc
);
312 if (configure
->sock
== 0) {
313 pcr
&= ~(PCR_SLOT_0_RST
);
314 if (configure
->reset
)
315 pcr
|= PCR_SLOT_0_RST
;
318 pcr
&= ~(PCR_SLOT_1_RST
);
319 if (configure
->reset
)
320 pcr
|= PCR_SLOT_1_RST
;
322 au_writel(pcr
, PB1000_PCR
);
327 pcr
= au_readw(PB1100_MEM_PCMCIA
) & ~0xf;
329 debug("Vcc %dV Vpp %dV, pcr %x, reset %d\n",
330 configure
->vcc
, configure
->vpp
, pcr
, configure
->reset
);
333 switch(configure
->vcc
){
335 pcr
|= SET_VCC_VPP(0,0);
337 case 50: /* Vcc 5V */
338 switch(configure
->vpp
) {
340 pcr
|= SET_VCC_VPP(2,0);
343 pcr
|= SET_VCC_VPP(2,1);
346 pcr
|= SET_VCC_VPP(2,2);
350 pcr
|= SET_VCC_VPP(0,0);
351 printk("%s: bad Vcc/Vpp (%d:%d)\n",
358 case 33: /* Vcc 3.3V */
359 switch(configure
->vpp
) {
361 pcr
|= SET_VCC_VPP(1,0);
364 pcr
|= SET_VCC_VPP(1,2);
367 pcr
|= SET_VCC_VPP(1,1);
371 pcr
|= SET_VCC_VPP(0,0);
372 printk("%s: bad Vcc/Vpp (%d:%d)\n",
379 default: /* what's this ? */
380 pcr
|= SET_VCC_VPP(0,0);
381 printk(KERN_ERR
"%s: bad Vcc %d\n",
382 __FUNCTION__
, configure
->vcc
);
386 au_writew(pcr
, PB1100_MEM_PCMCIA
);
389 if (!configure
->reset
) {
390 pcr
|= PB1100_PC_DRV_EN
;
391 au_writew(pcr
, PB1100_MEM_PCMCIA
);
393 pcr
|= PB1100_PC_DEASSERT_RST
;
394 au_writew(pcr
, PB1100_MEM_PCMCIA
);
398 pcr
&= ~(PB1100_PC_DEASSERT_RST
| PB1100_PC_DRV_EN
);
399 au_writew(pcr
, PB1100_MEM_PCMCIA
);
406 struct pcmcia_low_level pb1x00_pcmcia_ops
= {
408 pb1x00_pcmcia_shutdown
,
409 pb1x00_pcmcia_socket_state
,
410 pb1x00_pcmcia_get_irq_info
,
411 pb1x00_pcmcia_configure_socket