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127 lines
2.9 KiB
127 lines
2.9 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* Toshiba e740 PCMCIA specific routines. |
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* |
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* (c) 2004 Ian Molton <[email protected]> |
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*/ |
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#include <linux/init.h> |
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#include <linux/module.h> |
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#include <linux/kernel.h> |
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#include <linux/errno.h> |
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#include <linux/gpio.h> |
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#include <linux/interrupt.h> |
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#include <linux/platform_device.h> |
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#include <mach/eseries-gpio.h> |
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#include <asm/irq.h> |
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#include <asm/mach-types.h> |
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#include "soc_common.h" |
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static int e740_pcmcia_hw_init(struct soc_pcmcia_socket *skt) |
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{ |
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if (skt->nr == 0) { |
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skt->stat[SOC_STAT_CD].gpio = GPIO_E740_PCMCIA_CD0; |
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skt->stat[SOC_STAT_CD].name = "CF card detect"; |
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skt->stat[SOC_STAT_RDY].gpio = GPIO_E740_PCMCIA_RDY0; |
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skt->stat[SOC_STAT_RDY].name = "CF ready"; |
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} else { |
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skt->stat[SOC_STAT_CD].gpio = GPIO_E740_PCMCIA_CD1; |
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skt->stat[SOC_STAT_CD].name = "Wifi switch"; |
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skt->stat[SOC_STAT_RDY].gpio = GPIO_E740_PCMCIA_RDY1; |
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skt->stat[SOC_STAT_RDY].name = "Wifi ready"; |
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} |
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return 0; |
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} |
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static void e740_pcmcia_socket_state(struct soc_pcmcia_socket *skt, |
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struct pcmcia_state *state) |
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{ |
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state->vs_3v = 1; |
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state->vs_Xv = 0; |
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} |
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static int e740_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, |
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const socket_state_t *state) |
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{ |
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if (state->flags & SS_RESET) { |
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if (skt->nr == 0) |
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gpio_set_value(GPIO_E740_PCMCIA_RST0, 1); |
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else |
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gpio_set_value(GPIO_E740_PCMCIA_RST1, 1); |
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} else { |
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if (skt->nr == 0) |
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gpio_set_value(GPIO_E740_PCMCIA_RST0, 0); |
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else |
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gpio_set_value(GPIO_E740_PCMCIA_RST1, 0); |
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} |
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switch (state->Vcc) { |
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case 0: /* Socket off */ |
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if (skt->nr == 0) |
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gpio_set_value(GPIO_E740_PCMCIA_PWR0, 0); |
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else |
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gpio_set_value(GPIO_E740_PCMCIA_PWR1, 1); |
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break; |
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case 50: |
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case 33: /* socket on */ |
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if (skt->nr == 0) |
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gpio_set_value(GPIO_E740_PCMCIA_PWR0, 1); |
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else |
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gpio_set_value(GPIO_E740_PCMCIA_PWR1, 0); |
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break; |
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default: |
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printk(KERN_ERR "e740_cs: Unsupported Vcc: %d\n", state->Vcc); |
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} |
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return 0; |
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} |
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static struct pcmcia_low_level e740_pcmcia_ops = { |
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.owner = THIS_MODULE, |
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.hw_init = e740_pcmcia_hw_init, |
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.socket_state = e740_pcmcia_socket_state, |
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.configure_socket = e740_pcmcia_configure_socket, |
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.nr = 2, |
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}; |
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static struct platform_device *e740_pcmcia_device; |
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static int __init e740_pcmcia_init(void) |
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{ |
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int ret; |
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if (!machine_is_e740()) |
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return -ENODEV; |
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e740_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1); |
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if (!e740_pcmcia_device) |
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return -ENOMEM; |
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ret = platform_device_add_data(e740_pcmcia_device, &e740_pcmcia_ops, |
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sizeof(e740_pcmcia_ops)); |
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if (!ret) |
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ret = platform_device_add(e740_pcmcia_device); |
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if (ret) |
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platform_device_put(e740_pcmcia_device); |
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return ret; |
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} |
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static void __exit e740_pcmcia_exit(void) |
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{ |
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platform_device_unregister(e740_pcmcia_device); |
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} |
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module_init(e740_pcmcia_init); |
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module_exit(e740_pcmcia_exit); |
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MODULE_LICENSE("GPL v2"); |
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MODULE_AUTHOR("Ian Molton <[email protected]>"); |
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MODULE_ALIAS("platform:pxa2xx-pcmcia"); |
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MODULE_DESCRIPTION("e740 PCMCIA platform support");
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