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 <asm/hardware.h> 14#include <asm/hardware/sa1111.h> 15#include <asm/mach-types.h> 16 17#include "sa1111_generic.h" 18 19#define SOCKET0_POWER GPIO_GPIO0 20#define SOCKET0_3V GPIO_GPIO2 21#define SOCKET1_POWER (GPIO_GPIO1 | GPIO_GPIO3) 22#warning *** Does SOCKET1_3V actually do anything? 23#define SOCKET1_3V GPIO_GPIO3 24 25static int jornada720_pcmcia_hw_init(struct soc_pcmcia_socket *skt) 26{ 27 /* 28 * What is all this crap for? 29 */ 30 GRER |= 0x00000002; 31 /* Set GPIO_A<3:1> to be outputs for PCMCIA/CF power controller: */ 32 sa1111_set_io_dir(SA1111_DEV(skt->dev), GPIO_A0|GPIO_A1|GPIO_A2|GPIO_A3, 0, 0); 33 sa1111_set_io(SA1111_DEV(skt->dev), GPIO_A0|GPIO_A1|GPIO_A2|GPIO_A3, 0); 34 sa1111_set_sleep_io(SA1111_DEV(skt->dev), GPIO_A0|GPIO_A1|GPIO_A2|GPIO_A3, 0); 35 36 return sa1111_pcmcia_hw_init(skt); 37} 38 39static int 40jornada720_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state) 41{ 42 unsigned int pa_dwr_mask, pa_dwr_set; 43 int ret; 44 45printk("%s(): config socket %d vcc %d vpp %d\n", __FUNCTION__, 46 skt->nr, state->Vcc, state->Vpp); 47 48 switch (skt->nr) { 49 case 0: 50 pa_dwr_mask = SOCKET0_POWER | SOCKET0_3V; 51 52 switch (state->Vcc) { 53 default: 54 case 0: pa_dwr_set = 0; break; 55 case 33: pa_dwr_set = SOCKET0_POWER | SOCKET0_3V; break; 56 case 50: pa_dwr_set = SOCKET0_POWER; break; 57 } 58 break; 59 60 case 1: 61 pa_dwr_mask = SOCKET1_POWER; 62 63 switch (state->Vcc) { 64 default: 65 case 0: pa_dwr_set = 0; break; 66 case 33: pa_dwr_set = SOCKET1_POWER; break; 67 case 50: pa_dwr_set = SOCKET1_POWER; break; 68 } 69 break; 70 71 default: 72 return -1; 73 } 74 75 if (state->Vpp != state->Vcc && state->Vpp != 0) { 76 printk(KERN_ERR "%s(): slot cannot support VPP %u\n", 77 __FUNCTION__, state->Vpp); 78 return -1; 79 } 80 81 ret = sa1111_pcmcia_configure_socket(skt, state); 82 if (ret == 0) { 83 unsigned long flags; 84 85 local_irq_save(flags); 86 sa1111_set_io(SA1111_DEV(skt->dev), pa_dwr_mask, pa_dwr_set); 87 local_irq_restore(flags); 88 } 89 90 return ret; 91} 92 93static struct pcmcia_low_level jornada720_pcmcia_ops = { 94 .owner = THIS_MODULE, 95 .hw_init = jornada720_pcmcia_hw_init, 96 .hw_shutdown = sa1111_pcmcia_hw_shutdown, 97 .socket_state = sa1111_pcmcia_socket_state, 98 .configure_socket = jornada720_pcmcia_configure_socket, 99 100 .socket_init = sa1111_pcmcia_socket_init, 101 .socket_suspend = sa1111_pcmcia_socket_suspend, 102}; 103 104int __init pcmcia_jornada720_init(struct device *dev) 105{ 106 int ret = -ENODEV; 107 108 if (machine_is_jornada720()) 109 ret = sa11xx_drv_pcmcia_probe(dev, &jornada720_pcmcia_ops, 0, 2); 110 111 return ret; 112} 113