2 * drivers/pcmcia/sa1100_simpad.c
4 * PCMCIA implementation routines for simpad
7 #include <linux/module.h>
8 #include <linux/kernel.h>
9 #include <linux/sched.h>
10 #include <linux/device.h>
11 #include <linux/init.h>
13 #include <asm/hardware.h>
14 #include <asm/mach-types.h>
16 #include <asm/arch/simpad.h>
17 #include "sa1100_generic.h"
19 extern long get_cs3_shadow(void);
20 extern void set_cs3_bit(int value);
21 extern void clear_cs3_bit(int value);
23 static struct pcmcia_irqs irqs[] = {
24 { 1, IRQ_GPIO_CF_CD, "CF_CD" },
27 static int simpad_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
30 clear_cs3_bit(VCC_3V_EN|VCC_5V_EN|EN0|EN1);
32 skt->irq = IRQ_GPIO_CF_IRQ;
34 return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));
37 static void simpad_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
39 soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs));
42 //set_cs3_bit(PCMCIA_BUFF_DIS);
43 clear_cs3_bit(PCMCIA_RESET);
47 simpad_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
48 struct pcmcia_state *state)
50 unsigned long levels = GPLR;
51 long cs3reg = get_cs3_shadow();
53 state->detect=((levels & GPIO_CF_CD)==0)?1:0;
54 state->ready=(levels & GPIO_CF_IRQ)?1:0;
55 state->bvd1=1; /* Not available on Simpad. */
56 state->bvd2=1; /* Not available on Simpad. */
57 state->wrprot=0; /* Not available on Simpad. */
59 if((cs3reg & 0x0c) == 0x0c) {
69 simpad_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
70 const socket_state_t *state)
74 local_irq_save(flags);
76 /* Murphy: see table of MIC2562a-1 */
79 clear_cs3_bit(VCC_3V_EN|VCC_5V_EN|EN0|EN1);
83 clear_cs3_bit(VCC_3V_EN|EN1);
84 set_cs3_bit(VCC_5V_EN|EN0);
88 clear_cs3_bit(VCC_5V_EN|EN1);
89 set_cs3_bit(VCC_3V_EN|EN0);
93 printk(KERN_ERR "%s(): unrecognized Vcc %u\n",
94 __FUNCTION__, state->Vcc);
95 clear_cs3_bit(VCC_3V_EN|VCC_5V_EN|EN0|EN1);
96 local_irq_restore(flags);
101 local_irq_restore(flags);
106 static void simpad_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
108 soc_pcmcia_enable_irqs(skt, irqs, ARRAY_SIZE(irqs));
111 static void simpad_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
113 soc_pcmcia_disable_irqs(skt, irqs, ARRAY_SIZE(irqs));
114 set_cs3_bit(PCMCIA_RESET);
117 static struct pcmcia_low_level simpad_pcmcia_ops = {
118 .owner = THIS_MODULE,
119 .hw_init = simpad_pcmcia_hw_init,
120 .hw_shutdown = simpad_pcmcia_hw_shutdown,
121 .socket_state = simpad_pcmcia_socket_state,
122 .configure_socket = simpad_pcmcia_configure_socket,
123 .socket_init = simpad_pcmcia_socket_init,
124 .socket_suspend = simpad_pcmcia_socket_suspend,
127 int __init pcmcia_simpad_init(struct device *dev)
131 if (machine_is_simpad())
132 ret = sa11xx_drv_pcmcia_probe(dev, &simpad_pcmcia_ops, 1, 1);