/* * drivers/pcmcia/sa1100_cerf.c * * PCMCIA implementation routines for CerfBoard * Based off the Assabet. * */ #include <linux/config.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/sched.h> #include <linux/device.h> #include <linux/init.h> #include <linux/delay.h> #include <asm/hardware.h> #include <asm/mach-types.h> #include <asm/irq.h> #include <asm/arch/cerf.h> #include "sa1100_generic.h" #define CERF_SOCKET 1 static struct pcmcia_irqs irqs[] = { { CERF_SOCKET, CERF_IRQ_GPIO_CF_CD, "CF_CD" }, { CERF_SOCKET, CERF_IRQ_GPIO_CF_BVD2, "CF_BVD2" }, { CERF_SOCKET, CERF_IRQ_GPIO_CF_BVD1, "CF_BVD1" } }; static int cerf_pcmcia_hw_init(struct soc_pcmcia_socket *skt) { skt->irq = CERF_IRQ_GPIO_CF_IRQ; return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs)); } static void cerf_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) { soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs)); } static void cerf_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state) { unsigned long levels = GPLR; state->detect = (levels & CERF_GPIO_CF_CD) ?0:1; state->ready = (levels & CERF_GPIO_CF_IRQ) ?1:0; state->bvd1 = (levels & CERF_GPIO_CF_BVD1)?1:0; state->bvd2 = (levels & CERF_GPIO_CF_BVD2)?1:0; state->wrprot = 0; state->vs_3v = 1; state->vs_Xv = 0; } static int cerf_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state) { switch (state->Vcc) { case 0: case 50: case 33: break; default: printk(KERN_ERR "%s(): unrecognized Vcc %u\n", __FUNCTION__, state->Vcc); return -1; } if (state->flags & SS_RESET) { GPSR = CERF_GPIO_CF_RESET; } else { GPCR = CERF_GPIO_CF_RESET; } return 0; } static void cerf_pcmcia_socket_init(struct soc_pcmcia_socket *skt) { soc_pcmcia_enable_irqs(skt, irqs, ARRAY_SIZE(irqs)); } static void cerf_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt) { soc_pcmcia_disable_irqs(skt, irqs, ARRAY_SIZE(irqs)); } static struct pcmcia_low_level cerf_pcmcia_ops = { .owner = THIS_MODULE, .hw_init = cerf_pcmcia_hw_init, .hw_shutdown = cerf_pcmcia_hw_shutdown, .socket_state = cerf_pcmcia_socket_state, .configure_socket = cerf_pcmcia_configure_socket, .socket_init = cerf_pcmcia_socket_init, .socket_suspend = cerf_pcmcia_socket_suspend, }; int __init pcmcia_cerf_init(struct device *dev) { int ret = -ENODEV; if (machine_is_cerf()) ret = sa11xx_drv_pcmcia_probe(dev, &cerf_pcmcia_ops, CERF_SOCKET, 1); return ret; }