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/timer.h>
31 #include <linux/proc_fs.h>
32 #include <linux/types.h>
34 #include <pcmcia/cs_types.h>
35 #include <pcmcia/cs.h>
36 #include <pcmcia/ss.h>
37 #include <pcmcia/cistpl.h>
38 #include <pcmcia/bus_ops.h>
42 #include <asm/system.h>
44 #include <asm/au1000.h>
45 #include <asm/au1000_pcmcia.h>
47 #define debug(fmt, arg...) do { } while (0)
49 #ifdef CONFIG_MIPS_PB1000
50 #include <asm/pb1000.h>
51 #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
60 static int pb1x00_pcmcia_init(struct pcmcia_init *init)
62 #ifdef CONFIG_MIPS_PB1000
64 pcr = PCR_SLOT_0_RST | PCR_SLOT_1_RST;
66 au_writel(0x8000, PB1000_MDR); /* clear pcmcia interrupt */
68 au_writel(0x4000, PB1000_MDR); /* enable pcmcia interrupt */
71 pcr |= SET_VCC_VPP(VCC_HIZ,VPP_HIZ,0);
72 pcr |= SET_VCC_VPP(VCC_HIZ,VPP_HIZ,1);
73 au_writel(pcr, PB1000_PCR);
76 return PCMCIA_NUM_SOCKS;
78 #else /* fixme -- take care of the Pb1500 at some point */
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);
85 return PCMCIA_NUM_SOCKS;
89 static int pb1x00_pcmcia_shutdown(void)
91 #ifdef CONFIG_MIPS_PB1000
93 pcr = PCR_SLOT_0_RST | PCR_SLOT_1_RST;
94 pcr |= SET_VCC_VPP(VCC_HIZ,VPP_HIZ,0);
95 pcr |= SET_VCC_VPP(VCC_HIZ,VPP_HIZ,1);
96 au_writel(pcr, PB1000_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);
110 pb1x00_pcmcia_socket_state(unsigned sock, struct pcmcia_state *state)
112 u32 inserted0, inserted1;
115 #ifdef CONFIG_MIPS_PB1000
116 vs0 = vs1 = (u16)au_readl(PB1000_ACR1);
117 inserted0 = !(vs0 & (ACR1_SLOT_0_CD1 | ACR1_SLOT_0_CD2));
118 inserted1 = !(vs1 & (ACR1_SLOT_1_CD1 | ACR1_SLOT_1_CD2));
119 vs0 = (vs0 >> 4) & 0x3;
120 vs1 = (vs1 >> 12) & 0x3;
122 vs0 = (au_readw(BOARD_STATUS_REG) >> 4) & 0x3;
123 #ifdef CONFIG_MIPS_PB1500
124 inserted0 = !((au_readl(GPIO2_PINSTATE) >> 1) & 0x1); /* gpio 201 */
126 inserted0 = !((au_readl(SYS_PINSTATERD) >> 9) & 0x1); /* gpio 9 */
146 /* return without setting 'detect' */
147 printk(KERN_ERR "pb1x00 bad VS (%d)\n",
164 /* return without setting 'detect' */
165 printk(KERN_ERR "pb1x00 bad VS (%d)\n",
184 static int pb1x00_pcmcia_get_irq_info(struct pcmcia_irq_info *info)
187 if(info->sock > PCMCIA_MAX_SOCK) return -1;
190 * Even in the case of the Pb1000, both sockets are connected
191 * to the same irq line.
193 info->irq = PCMCIA_IRQ;
200 pb1x00_pcmcia_configure_socket(const struct pcmcia_configure *configure)
204 if(configure->sock > PCMCIA_MAX_SOCK) return -1;
206 #ifdef CONFIG_MIPS_PB1000
207 pcr = au_readl(PB1000_PCR);
209 if (configure->sock == 0) {
210 pcr &= ~(PCR_SLOT_0_VCC0 | PCR_SLOT_0_VCC1 |
211 PCR_SLOT_0_VPP0 | PCR_SLOT_0_VPP1);
214 pcr &= ~(PCR_SLOT_1_VCC0 | PCR_SLOT_1_VCC1 |
215 PCR_SLOT_1_VPP0 | PCR_SLOT_1_VPP1);
218 pcr &= ~PCR_SLOT_0_RST;
219 debug("Vcc %dV Vpp %dV, pcr %x\n",
220 configure->vcc, configure->vpp, pcr);
221 switch(configure->vcc){
223 switch(configure->vpp) {
225 pcr |= SET_VCC_VPP(VCC_HIZ,VPP_GND,
229 pcr |= SET_VCC_VPP(VCC_HIZ,VPP_12V,
233 pcr |= SET_VCC_VPP(VCC_HIZ,VPP_5V,
237 pcr |= SET_VCC_VPP(VCC_HIZ,VPP_3V,
241 pcr |= SET_VCC_VPP(VCC_HIZ,VPP_HIZ,
243 printk("%s: bad Vcc/Vpp (%d:%d)\n",
250 case 50: /* Vcc 5V */
251 switch(configure->vpp) {
253 pcr |= SET_VCC_VPP(VCC_5V,VPP_GND,
257 pcr |= SET_VCC_VPP(VCC_5V,VPP_5V,
261 pcr |= SET_VCC_VPP(VCC_5V,VPP_12V,
265 pcr |= SET_VCC_VPP(VCC_5V,VPP_3V,
269 pcr |= SET_VCC_VPP(VCC_HIZ,VPP_HIZ,
271 printk("%s: bad Vcc/Vpp (%d:%d)\n",
278 case 33: /* Vcc 3.3V */
279 switch(configure->vpp) {
281 pcr |= SET_VCC_VPP(VCC_3V,VPP_GND,
285 pcr |= SET_VCC_VPP(VCC_3V,VPP_5V,
289 pcr |= SET_VCC_VPP(VCC_3V,VPP_12V,
293 pcr |= SET_VCC_VPP(VCC_3V,VPP_3V,
297 pcr |= SET_VCC_VPP(VCC_HIZ,VPP_HIZ,
299 printk("%s: bad Vcc/Vpp (%d:%d)\n",
306 default: /* what's this ? */
307 pcr |= SET_VCC_VPP(VCC_HIZ,VPP_HIZ,configure->sock);
308 printk(KERN_ERR "%s: bad Vcc %d\n",
309 __func__, configure->vcc);
313 if (configure->sock == 0) {
314 pcr &= ~(PCR_SLOT_0_RST);
315 if (configure->reset)
316 pcr |= PCR_SLOT_0_RST;
319 pcr &= ~(PCR_SLOT_1_RST);
320 if (configure->reset)
321 pcr |= PCR_SLOT_1_RST;
323 au_writel(pcr, PB1000_PCR);
328 pcr = au_readw(PCMCIA_BOARD_REG) & ~0xf;
330 debug("Vcc %dV Vpp %dV, pcr %x, reset %d\n",
331 configure->vcc, configure->vpp, pcr, configure->reset);
334 switch(configure->vcc){
336 pcr |= SET_VCC_VPP(0,0);
338 case 50: /* Vcc 5V */
339 switch(configure->vpp) {
341 pcr |= SET_VCC_VPP(2,0);
344 pcr |= SET_VCC_VPP(2,1);
347 pcr |= SET_VCC_VPP(2,2);
351 pcr |= SET_VCC_VPP(0,0);
352 printk("%s: bad Vcc/Vpp (%d:%d)\n",
359 case 33: /* Vcc 3.3V */
360 switch(configure->vpp) {
362 pcr |= SET_VCC_VPP(1,0);
365 pcr |= SET_VCC_VPP(1,2);
368 pcr |= SET_VCC_VPP(1,1);
372 pcr |= SET_VCC_VPP(0,0);
373 printk("%s: bad Vcc/Vpp (%d:%d)\n",
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);
387 au_writew(pcr, PCMCIA_BOARD_REG);
390 if (!configure->reset) {
392 au_writew(pcr, PCMCIA_BOARD_REG);
394 pcr |= PC_DEASSERT_RST;
395 au_writew(pcr, PCMCIA_BOARD_REG);
399 pcr &= ~(PC_DEASSERT_RST | PC_DRV_EN);
400 au_writew(pcr, PCMCIA_BOARD_REG);
408 struct pcmcia_low_level pb1x00_pcmcia_ops = {
410 pb1x00_pcmcia_shutdown,
411 pb1x00_pcmcia_socket_state,
412 pb1x00_pcmcia_get_irq_info,
413 pb1x00_pcmcia_configure_socket