1 /*
2 * drivers/pcmcia/sa1100_jornada720.c
3 *
4 * Jornada720 PCMCIA specific routines
5 *
6 */
7 #include <linux/kernel.h>
8 #include <linux/sched.h>
9
10 #include <asm/hardware.h>
11
12 #include "sa1100_generic.h"
13 #include "sa1111_generic.h"
14
15 #define SOCKET0_POWER GPIO_GPIO0
16 #define SOCKET0_3V GPIO_GPIO2
17 #define SOCKET1_POWER (GPIO_GPIO1 | GPIO_GPIO3)
18 #warning *** Does SOCKET1_3V actually do anything?
19 #define SOCKET1_3V GPIO_GPIO3
20
jornada720_pcmcia_init(struct pcmcia_init * init)21 static int jornada720_pcmcia_init(struct pcmcia_init *init)
22 {
23 /*
24 * What is all this crap for?
25 */
26 GRER |= 0x00000002;
27 /* Set GPIO_A<3:1> to be outputs for PCMCIA/CF power controller: */
28 PA_DDR = 0;
29 PA_DWR = 0;
30 PA_SDR = 0;
31 PA_SSR = 0;
32
33 PB_DDR = 0;
34 PB_DWR = 0x01;
35 PB_SDR = 0;
36 PB_SSR = 0;
37
38 PC_DDR = 0x88;
39 PC_DWR = 0x20;
40 PC_SDR = 0;
41 PC_SSR = 0;
42
43 return sa1111_pcmcia_init(init);
44 }
45
46 static int
jornada720_pcmcia_configure_socket(const struct pcmcia_configure * conf)47 jornada720_pcmcia_configure_socket(const struct pcmcia_configure *conf)
48 {
49 unsigned int pa_dwr_mask, pa_dwr_set;
50 int ret;
51
52 printk("%s(): config socket %d vcc %d vpp %d\n", __FUNCTION__,
53 conf->sock, conf->vcc, conf->vpp);
54
55 switch (conf->sock) {
56 case 0:
57 pa_dwr_mask = SOCKET0_POWER | SOCKET0_3V;
58
59 switch (conf->vcc) {
60 default:
61 case 0: pa_dwr_set = 0; break;
62 case 33: pa_dwr_set = SOCKET0_POWER | SOCKET0_3V; break;
63 case 50: pa_dwr_set = SOCKET0_POWER; break;
64 }
65 break;
66
67 case 1:
68 pa_dwr_mask = SOCKET1_POWER;
69
70 switch (conf->vcc) {
71 default:
72 case 0: pa_dwr_set = 0; break;
73 case 33: pa_dwr_set = SOCKET1_POWER; break;
74 case 50: pa_dwr_set = SOCKET1_POWER; break;
75 }
76 break;
77 }
78
79 if (conf->vpp != conf->vcc && conf->vpp != 0) {
80 printk(KERN_ERR "%s(): slot cannot support VPP %u\n",
81 __FUNCTION__, conf->vpp);
82 return -1;
83 }
84
85 ret = sa1111_pcmcia_configure_socket(conf);
86 if (ret == 0) {
87 unsigned long flags;
88
89 local_irq_save(flags);
90 PA_DWR = (PA_DWR & ~pa_dwr_mask) | pa_dwr_set;
91 locla_irq_restore(flags);
92 }
93
94 return ret;
95 }
96
97 struct pcmcia_low_level jornada720_pcmcia_ops = {
98 init: jornada720_pcmcia_init,
99 shutdown: sa1111_pcmcia_shutdown,
100 socket_state: sa1111_pcmcia_socket_state,
101 get_irq_info: sa1111_pcmcia_get_irq_info,
102 configure_socket: jornada720_pcmcia_configure_socket,
103
104 socket_init: sa1111_pcmcia_socket_init,
105 socket_suspend: sa1111_pcmcia_socket_suspend,
106 };
107
108