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/version.h>
34 #include <linux/types.h>
36 #include <pcmcia/version.h>
37 #include <pcmcia/cs_types.h>
38 #include <pcmcia/cs.h>
39 #include <pcmcia/ss.h>
40 #include <pcmcia/bulkmem.h>
41 #include <pcmcia/cistpl.h>
42 #include <pcmcia/bus_ops.h>
43 #include "cs_internal.h"
47 #include <asm/system.h>
49 #include <asm/au1000.h>
50 #include <asm/au1000_pcmcia.h>
52 #ifdef CONFIG_MIPS_PB1000
53 #include <asm/pb1000.h>
54 #define PCMCIA_IRQ AU1000_GPIO_15
55 #elif defined (CONFIG_MIPS_PB1500)
56 #include <asm/pb1500.h>
57 #define PCMCIA_IRQ AU1000_GPIO_11 /* fixme */
58 #elif defined (CONFIG_MIPS_PB1100)
59 #include <asm/pb1100.h>
60 #define PCMCIA_IRQ AU1000_GPIO_11
63 static int pb1x00_pcmcia_init(struct pcmcia_init
*init
)
65 #ifdef CONFIG_MIPS_PB1000
67 pcr
= PCR_SLOT_0_RST
| PCR_SLOT_1_RST
;
69 au_writel(0x8000, PB1000_MDR
); /* clear pcmcia interrupt */
71 au_writel(0x4000, PB1000_MDR
); /* enable pcmcia interrupt */
74 pcr
|= SET_VCC_VPP(VCC_HIZ
,VPP_HIZ
,0);
75 pcr
|= SET_VCC_VPP(VCC_HIZ
,VPP_HIZ
,1);
76 au_writel(pcr
, PB1000_PCR
);
79 return PCMCIA_NUM_SOCKS
;
81 #else /* fixme -- take care of the Pb1500 at some point */
84 pcr
= au_readw(PB1100_MEM_PCMCIA
) & ~0xf; /* turn off power */
85 pcr
&= ~(PB1100_PC_DEASSERT_RST
| PB1100_PC_DRV_EN
);
86 au_writew(pcr
, PB1100_MEM_PCMCIA
);
88 return PCMCIA_NUM_SOCKS
;
92 static int pb1x00_pcmcia_shutdown(void)
94 #ifdef CONFIG_MIPS_PB1000
96 pcr
= PCR_SLOT_0_RST
| PCR_SLOT_1_RST
;
97 pcr
|= SET_VCC_VPP(VCC_HIZ
,VPP_HIZ
,0);
98 pcr
|= SET_VCC_VPP(VCC_HIZ
,VPP_HIZ
,1);
99 au_writel(pcr
, PB1000_PCR
);
104 pcr
= au_readw(PB1100_MEM_PCMCIA
) & ~0xf; /* turn off power */
105 pcr
&= ~(PB1100_PC_DEASSERT_RST
| PB1100_PC_DRV_EN
);
106 au_writew(pcr
, PB1100_MEM_PCMCIA
);
113 pb1x00_pcmcia_socket_state(unsigned sock
, struct pcmcia_state
*state
)
115 u32 inserted0
, inserted1
;
118 #ifdef CONFIG_MIPS_PB1000
119 vs0
= vs1
= (u16
)au_readl(PB1000_ACR1
);
120 inserted0
= !(vs0
& (ACR1_SLOT_0_CD1
| ACR1_SLOT_0_CD2
));
121 inserted1
= !(vs1
& (ACR1_SLOT_1_CD1
| ACR1_SLOT_1_CD2
));
122 vs0
= (vs0
>> 4) & 0x3;
123 vs1
= (vs1
>> 12) & 0x3;
125 vs0
= (au_readw(PB1100_BOARD_STATUS
) >> 4) & 0x3;
126 inserted0
= !((au_readl(SYS_PINSTATERD
) >> 9) & 0x1); /* gpio 9 */
144 /* return without setting 'detect' */
145 printk(KERN_ERR
"pb1x00 bad VS (%d)\n",
162 /* return without setting 'detect' */
163 printk(KERN_ERR
"pb1x00 bad VS (%d)\n",
182 static int pb1x00_pcmcia_get_irq_info(struct pcmcia_irq_info
*info
)
185 if(info
->sock
> PCMCIA_MAX_SOCK
) return -1;
188 * Even in the case of the Pb1000, both sockets are connected
189 * to the same irq line.
191 info
->irq
= PCMCIA_IRQ
;
198 pb1x00_pcmcia_configure_socket(const struct pcmcia_configure
*configure
)
202 if(configure
->sock
> PCMCIA_MAX_SOCK
) return -1;
204 #ifdef CONFIG_MIPS_PB1000
205 pcr
= au_readl(PB1000_PCR
);
207 if (configure
->sock
== 0) {
208 pcr
&= ~(PCR_SLOT_0_VCC0
| PCR_SLOT_0_VCC1
|
209 PCR_SLOT_0_VPP0
| PCR_SLOT_0_VPP1
);
212 pcr
&= ~(PCR_SLOT_1_VCC0
| PCR_SLOT_1_VCC1
|
213 PCR_SLOT_1_VPP0
| PCR_SLOT_1_VPP1
);
216 pcr
&= ~PCR_SLOT_0_RST
;
217 DEBUG(KERN_INFO
"Vcc %dV Vpp %dV, pcr %x\n",
218 configure
->vcc
, configure
->vpp
, pcr
);
219 switch(configure
->vcc
){
221 switch(configure
->vpp
) {
223 pcr
|= SET_VCC_VPP(VCC_HIZ
,VPP_GND
,
227 pcr
|= SET_VCC_VPP(VCC_HIZ
,VPP_12V
,
231 pcr
|= SET_VCC_VPP(VCC_HIZ
,VPP_5V
,
235 pcr
|= SET_VCC_VPP(VCC_HIZ
,VPP_3V
,
239 pcr
|= SET_VCC_VPP(VCC_HIZ
,VPP_HIZ
,
241 printk("%s: bad Vcc/Vpp (%d:%d)\n",
248 case 50: /* Vcc 5V */
249 switch(configure
->vpp
) {
251 pcr
|= SET_VCC_VPP(VCC_5V
,VPP_GND
,
255 pcr
|= SET_VCC_VPP(VCC_5V
,VPP_5V
,
259 pcr
|= SET_VCC_VPP(VCC_5V
,VPP_12V
,
263 pcr
|= SET_VCC_VPP(VCC_5V
,VPP_3V
,
267 pcr
|= SET_VCC_VPP(VCC_HIZ
,VPP_HIZ
,
269 printk("%s: bad Vcc/Vpp (%d:%d)\n",
276 case 33: /* Vcc 3.3V */
277 switch(configure
->vpp
) {
279 pcr
|= SET_VCC_VPP(VCC_3V
,VPP_GND
,
283 pcr
|= SET_VCC_VPP(VCC_3V
,VPP_5V
,
287 pcr
|= SET_VCC_VPP(VCC_3V
,VPP_12V
,
291 pcr
|= SET_VCC_VPP(VCC_3V
,VPP_3V
,
295 pcr
|= SET_VCC_VPP(VCC_HIZ
,VPP_HIZ
,
297 printk("%s: bad Vcc/Vpp (%d:%d)\n",
304 default: /* what's this ? */
305 pcr
|= SET_VCC_VPP(VCC_HIZ
,VPP_HIZ
,configure
->sock
);
306 printk(KERN_ERR
"%s: bad Vcc %d\n",
307 __FUNCTION__
, configure
->vcc
);
311 if (configure
->sock
== 0) {
312 pcr
&= ~(PCR_SLOT_0_RST
);
313 if (configure
->reset
)
314 pcr
|= PCR_SLOT_0_RST
;
317 pcr
&= ~(PCR_SLOT_1_RST
);
318 if (configure
->reset
)
319 pcr
|= PCR_SLOT_1_RST
;
321 au_writel(pcr
, PB1000_PCR
);
326 pcr
= au_readw(PB1100_MEM_PCMCIA
) & ~0xf;
328 DEBUG(KERN_INFO
"Vcc %dV Vpp %dV, pcr %x, reset %d\n",
329 configure
->vcc
, configure
->vpp
, pcr
, configure
->reset
);
332 switch(configure
->vcc
){
334 pcr
|= SET_VCC_VPP(0,0);
336 case 50: /* Vcc 5V */
337 switch(configure
->vpp
) {
339 pcr
|= SET_VCC_VPP(2,0);
342 pcr
|= SET_VCC_VPP(2,1);
345 pcr
|= SET_VCC_VPP(2,2);
349 pcr
|= SET_VCC_VPP(0,0);
350 printk("%s: bad Vcc/Vpp (%d:%d)\n",
357 case 33: /* Vcc 3.3V */
358 switch(configure
->vpp
) {
360 pcr
|= SET_VCC_VPP(1,0);
363 pcr
|= SET_VCC_VPP(1,2);
366 pcr
|= SET_VCC_VPP(1,1);
370 pcr
|= SET_VCC_VPP(0,0);
371 printk("%s: bad Vcc/Vpp (%d:%d)\n",
378 default: /* what's this ? */
379 pcr
|= SET_VCC_VPP(0,0);
380 printk(KERN_ERR
"%s: bad Vcc %d\n",
381 __FUNCTION__
, configure
->vcc
);
385 au_writew(pcr
, PB1100_MEM_PCMCIA
);
388 if (!configure
->reset
) {
389 pcr
|= PB1100_PC_DRV_EN
;
390 au_writew(pcr
, PB1100_MEM_PCMCIA
);
392 pcr
|= PB1100_PC_DEASSERT_RST
;
393 au_writew(pcr
, PB1100_MEM_PCMCIA
);
397 pcr
&= ~(PB1100_PC_DEASSERT_RST
| PB1100_PC_DRV_EN
);
398 au_writew(pcr
, PB1100_MEM_PCMCIA
);
405 struct pcmcia_low_level pb1x00_pcmcia_ops
= {
407 pb1x00_pcmcia_shutdown
,
408 pb1x00_pcmcia_socket_state
,
409 pb1x00_pcmcia_get_irq_info
,
410 pb1x00_pcmcia_configure_socket