1/* 2 * drivers/pcmcia/sa1100_jornada720.c 3 * 4 * Jornada720 PCMCIA specific routines 5 * 6 */ 7#include <linux/module.h> 8#include <linux/kernel.h> 9#include <linux/device.h> 10#include <linux/errno.h> 11#include <linux/init.h> 12 13#include <mach/hardware.h> 14#include <asm/hardware/sa1111.h> 15#include <asm/mach-types.h> 16 17#include "sa1111_generic.h" 18 19/* Does SOCKET1_3V actually do anything? */ 20#define SOCKET0_POWER GPIO_GPIO0 21#define SOCKET0_3V GPIO_GPIO2 22#define SOCKET1_POWER (GPIO_GPIO1 | GPIO_GPIO3) 23#define SOCKET1_3V GPIO_GPIO3 24 25static int 26jornada720_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state) 27{ 28 struct sa1111_pcmcia_socket *s = to_skt(skt); 29 unsigned int pa_dwr_mask, pa_dwr_set; 30 int ret; 31 32 printk(KERN_INFO "%s(): config socket %d vcc %d vpp %d\n", __func__, 33 skt->nr, state->Vcc, state->Vpp); 34 35 switch (skt->nr) { 36 case 0: 37 pa_dwr_mask = SOCKET0_POWER | SOCKET0_3V; 38 39 switch (state->Vcc) { 40 default: 41 case 0: 42 pa_dwr_set = 0; 43 break; 44 case 33: 45 pa_dwr_set = SOCKET0_POWER | SOCKET0_3V; 46 break; 47 case 50: 48 pa_dwr_set = SOCKET0_POWER; 49 break; 50 } 51 break; 52 53 case 1: 54 pa_dwr_mask = SOCKET1_POWER; 55 56 switch (state->Vcc) { 57 default: 58 case 0: 59 pa_dwr_set = 0; 60 break; 61 case 33: 62 pa_dwr_set = SOCKET1_POWER; 63 break; 64 case 50: 65 pa_dwr_set = SOCKET1_POWER; 66 break; 67 } 68 break; 69 70 default: 71 return -1; 72 } 73 74 if (state->Vpp != state->Vcc && state->Vpp != 0) { 75 printk(KERN_ERR "%s(): slot cannot support VPP %u\n", 76 __func__, state->Vpp); 77 return -EPERM; 78 } 79 80 ret = sa1111_pcmcia_configure_socket(skt, state); 81 if (ret == 0) { 82 unsigned long flags; 83 84 local_irq_save(flags); 85 sa1111_set_io(s->dev, pa_dwr_mask, pa_dwr_set); 86 local_irq_restore(flags); 87 } 88 89 return ret; 90} 91 92static struct pcmcia_low_level jornada720_pcmcia_ops = { 93 .owner = THIS_MODULE, 94 .configure_socket = jornada720_pcmcia_configure_socket, 95 .socket_init = sa1111_pcmcia_socket_init, 96 .first = 0, 97 .nr = 2, 98}; 99 100int __devinit pcmcia_jornada720_init(struct device *dev) 101{ 102 int ret = -ENODEV; 103 104 if (machine_is_jornada720()) { 105 unsigned int pin = GPIO_A0 | GPIO_A1 | GPIO_A2 | GPIO_A3; 106 107 GRER |= 0x00000002; 108 109 /* Set GPIO_A<3:1> to be outputs for PCMCIA/CF power controller: */ 110 sa1111_set_io_dir(dev, pin, 0, 0); 111 sa1111_set_io(dev, pin, 0); 112 sa1111_set_sleep_io(dev, pin, 0); 113 114 sa11xx_drv_pcmcia_ops(&jornada720_pcmcia_ops); 115 ret = sa1111_pcmcia_add(dev, &jornada720_pcmcia_ops, 116 sa11xx_drv_pcmcia_add_one); 117 } 118 119 return ret; 120} 121