| /* |
| * linux/drivers/pcmcia/pxa/pxa_cm_x270.c |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| * |
| * Compulab Ltd., 2003, 2007 |
| * Mike Rapoport <mike@compulab.co.il> |
| * |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/sched.h> |
| #include <linux/platform_device.h> |
| #include <linux/irq.h> |
| #include <linux/delay.h> |
| |
| #include <pcmcia/ss.h> |
| #include <asm/hardware.h> |
| |
| #include <asm/arch/pxa-regs.h> |
| #include <asm/arch/pxa2xx-gpio.h> |
| #include <asm/arch/cm-x270.h> |
| |
| #include "soc_common.h" |
| |
| static struct pcmcia_irqs irqs[] = { |
| { 0, PCMCIA_S0_CD_VALID, "PCMCIA0 CD" }, |
| { 1, PCMCIA_S1_CD_VALID, "PCMCIA1 CD" }, |
| }; |
| |
| static int cmx270_pcmcia_hw_init(struct soc_pcmcia_socket *skt) |
| { |
| GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) | |
| GPIO_bit(GPIO49_nPWE) | |
| GPIO_bit(GPIO50_nPIOR) | |
| GPIO_bit(GPIO51_nPIOW) | |
| GPIO_bit(GPIO85_nPCE_1) | |
| GPIO_bit(GPIO54_nPCE_2); |
| |
| pxa_gpio_mode(GPIO48_nPOE_MD); |
| pxa_gpio_mode(GPIO49_nPWE_MD); |
| pxa_gpio_mode(GPIO50_nPIOR_MD); |
| pxa_gpio_mode(GPIO51_nPIOW_MD); |
| pxa_gpio_mode(GPIO85_nPCE_1_MD); |
| pxa_gpio_mode(GPIO54_nPCE_2_MD); |
| pxa_gpio_mode(GPIO55_nPREG_MD); |
| pxa_gpio_mode(GPIO56_nPWAIT_MD); |
| pxa_gpio_mode(GPIO57_nIOIS16_MD); |
| |
| /* Reset signal */ |
| pxa_gpio_mode(GPIO53_nPCE_2 | GPIO_OUT); |
| GPCR(GPIO53_nPCE_2) = GPIO_bit(GPIO53_nPCE_2); |
| |
| set_irq_type(PCMCIA_S0_CD_VALID, IRQ_TYPE_EDGE_BOTH); |
| set_irq_type(PCMCIA_S1_CD_VALID, IRQ_TYPE_EDGE_BOTH); |
| |
| /* irq's for slots: */ |
| set_irq_type(PCMCIA_S0_RDYINT, IRQ_TYPE_EDGE_FALLING); |
| set_irq_type(PCMCIA_S1_RDYINT, IRQ_TYPE_EDGE_FALLING); |
| |
| skt->irq = (skt->nr == 0) ? PCMCIA_S0_RDYINT : PCMCIA_S1_RDYINT; |
| return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs)); |
| } |
| |
| static void cmx270_pcmcia_shutdown(struct soc_pcmcia_socket *skt) |
| { |
| soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs)); |
| |
| set_irq_type(IRQ_TO_GPIO(PCMCIA_S0_CD_VALID), IRQ_TYPE_NONE); |
| set_irq_type(IRQ_TO_GPIO(PCMCIA_S1_CD_VALID), IRQ_TYPE_NONE); |
| |
| set_irq_type(IRQ_TO_GPIO(PCMCIA_S0_RDYINT), IRQ_TYPE_NONE); |
| set_irq_type(IRQ_TO_GPIO(PCMCIA_S1_RDYINT), IRQ_TYPE_NONE); |
| } |
| |
| |
| static void cmx270_pcmcia_socket_state(struct soc_pcmcia_socket *skt, |
| struct pcmcia_state *state) |
| { |
| state->detect = (PCC_DETECT(skt->nr) == 0) ? 1 : 0; |
| state->ready = (PCC_READY(skt->nr) == 0) ? 0 : 1; |
| state->bvd1 = 1; |
| state->bvd2 = 1; |
| state->vs_3v = 0; |
| state->vs_Xv = 0; |
| state->wrprot = 0; /* not available */ |
| } |
| |
| |
| static int cmx270_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, |
| const socket_state_t *state) |
| { |
| GPSR(GPIO49_nPWE) = GPIO_bit(GPIO49_nPWE); |
| pxa_gpio_mode(GPIO49_nPWE | GPIO_OUT); |
| |
| switch (skt->nr) { |
| case 0: |
| if (state->flags & SS_RESET) { |
| GPCR(GPIO49_nPWE) = GPIO_bit(GPIO49_nPWE); |
| GPSR(GPIO53_nPCE_2) = GPIO_bit(GPIO53_nPCE_2); |
| udelay(10); |
| GPCR(GPIO53_nPCE_2) = GPIO_bit(GPIO53_nPCE_2); |
| GPSR(GPIO49_nPWE) = GPIO_bit(GPIO49_nPWE); |
| } |
| break; |
| case 1: |
| if (state->flags & SS_RESET) { |
| GPCR(GPIO49_nPWE) = GPIO_bit(GPIO49_nPWE); |
| GPSR(GPIO53_nPCE_2) = GPIO_bit(GPIO53_nPCE_2); |
| udelay(10); |
| GPCR(GPIO53_nPCE_2) = GPIO_bit(GPIO53_nPCE_2); |
| GPSR(GPIO49_nPWE) = GPIO_bit(GPIO49_nPWE); |
| } |
| break; |
| } |
| |
| pxa_gpio_mode(GPIO49_nPWE_MD); |
| |
| return 0; |
| } |
| |
| static void cmx270_pcmcia_socket_init(struct soc_pcmcia_socket *skt) |
| { |
| } |
| |
| static void cmx270_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt) |
| { |
| } |
| |
| |
| static struct pcmcia_low_level cmx270_pcmcia_ops = { |
| .owner = THIS_MODULE, |
| .hw_init = cmx270_pcmcia_hw_init, |
| .hw_shutdown = cmx270_pcmcia_shutdown, |
| .socket_state = cmx270_pcmcia_socket_state, |
| .configure_socket = cmx270_pcmcia_configure_socket, |
| .socket_init = cmx270_pcmcia_socket_init, |
| .socket_suspend = cmx270_pcmcia_socket_suspend, |
| .nr = 2, |
| }; |
| |
| static struct platform_device *cmx270_pcmcia_device; |
| |
| static int __init cmx270_pcmcia_init(void) |
| { |
| int ret; |
| |
| cmx270_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1); |
| |
| if (!cmx270_pcmcia_device) |
| return -ENOMEM; |
| |
| cmx270_pcmcia_device->dev.platform_data = &cmx270_pcmcia_ops; |
| |
| printk(KERN_INFO "Registering cm-x270 PCMCIA interface.\n"); |
| ret = platform_device_add(cmx270_pcmcia_device); |
| |
| if (ret) |
| platform_device_put(cmx270_pcmcia_device); |
| |
| return ret; |
| } |
| |
| static void __exit cmx270_pcmcia_exit(void) |
| { |
| platform_device_unregister(cmx270_pcmcia_device); |
| } |
| |
| module_init(cmx270_pcmcia_init); |
| module_exit(cmx270_pcmcia_exit); |
| |
| MODULE_LICENSE("GPL"); |
| MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>"); |
| MODULE_DESCRIPTION("CM-x270 PCMCIA driver"); |