diff options
Diffstat (limited to 'arch/arm/mach-pxa/palmtc-pcmcia.c')
| -rw-r--r-- | arch/arm/mach-pxa/palmtc-pcmcia.c | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/arch/arm/mach-pxa/palmtc-pcmcia.c b/arch/arm/mach-pxa/palmtc-pcmcia.c deleted file mode 100644 index 8e3f382343fe..000000000000 --- a/arch/arm/mach-pxa/palmtc-pcmcia.c +++ /dev/null @@ -1,162 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * linux/drivers/pcmcia/pxa2xx_palmtc.c - * - * Driver for Palm Tungsten|C PCMCIA - * - * Copyright (C) 2008 Alex Osborne <ato@meshy.org> - * Copyright (C) 2009-2011 Marek Vasut <marek.vasut@gmail.com> - */ - -#include <linux/module.h> -#include <linux/platform_device.h> -#include <linux/gpio.h> -#include <linux/delay.h> - -#include <asm/mach-types.h> -#include "palmtc.h" -#include <pcmcia/soc_common.h> - -static struct gpio palmtc_pcmcia_gpios[] = { - { GPIO_NR_PALMTC_PCMCIA_POWER1, GPIOF_INIT_LOW, "PCMCIA Power 1" }, - { GPIO_NR_PALMTC_PCMCIA_POWER2, GPIOF_INIT_LOW, "PCMCIA Power 2" }, - { GPIO_NR_PALMTC_PCMCIA_POWER3, GPIOF_INIT_LOW, "PCMCIA Power 3" }, - { GPIO_NR_PALMTC_PCMCIA_RESET, GPIOF_INIT_HIGH,"PCMCIA Reset" }, - { GPIO_NR_PALMTC_PCMCIA_PWRREADY, GPIOF_IN, "PCMCIA Power Ready" }, -}; - -static int palmtc_pcmcia_hw_init(struct soc_pcmcia_socket *skt) -{ - int ret; - - ret = gpio_request_array(palmtc_pcmcia_gpios, - ARRAY_SIZE(palmtc_pcmcia_gpios)); - - skt->stat[SOC_STAT_RDY].gpio = GPIO_NR_PALMTC_PCMCIA_READY; - skt->stat[SOC_STAT_RDY].name = "PCMCIA Ready"; - - return ret; -} - -static void palmtc_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) -{ - gpio_free_array(palmtc_pcmcia_gpios, ARRAY_SIZE(palmtc_pcmcia_gpios)); -} - -static void palmtc_pcmcia_socket_state(struct soc_pcmcia_socket *skt, - struct pcmcia_state *state) -{ - state->detect = 1; /* always inserted */ - state->vs_3v = 1; - state->vs_Xv = 0; -} - -static int palmtc_wifi_powerdown(void) -{ - gpio_set_value(GPIO_NR_PALMTC_PCMCIA_RESET, 1); - gpio_set_value(GPIO_NR_PALMTC_PCMCIA_POWER2, 0); - mdelay(40); - gpio_set_value(GPIO_NR_PALMTC_PCMCIA_POWER1, 0); - return 0; -} - -static int palmtc_wifi_powerup(void) -{ - int timeout = 50; - - gpio_set_value(GPIO_NR_PALMTC_PCMCIA_POWER3, 1); - mdelay(50); - - /* Power up the card, 1.8V first, after a while 3.3V */ - gpio_set_value(GPIO_NR_PALMTC_PCMCIA_POWER1, 1); - mdelay(100); - gpio_set_value(GPIO_NR_PALMTC_PCMCIA_POWER2, 1); - - /* Wait till the card is ready */ - while (!gpio_get_value(GPIO_NR_PALMTC_PCMCIA_PWRREADY) && - timeout) { - mdelay(1); - timeout--; - } - - /* Power down the WiFi in case of error */ - if (!timeout) { - palmtc_wifi_powerdown(); - return 1; - } - - /* Reset the card */ - gpio_set_value(GPIO_NR_PALMTC_PCMCIA_RESET, 1); - mdelay(20); - gpio_set_value(GPIO_NR_PALMTC_PCMCIA_RESET, 0); - mdelay(25); - - gpio_set_value(GPIO_NR_PALMTC_PCMCIA_POWER3, 0); - - return 0; -} - -static int palmtc_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, - const socket_state_t *state) -{ - int ret = 1; - - if (state->Vcc == 0) - ret = palmtc_wifi_powerdown(); - else if (state->Vcc == 33) - ret = palmtc_wifi_powerup(); - - return ret; -} - -static struct pcmcia_low_level palmtc_pcmcia_ops = { - .owner = THIS_MODULE, - - .first = 0, - .nr = 1, - - .hw_init = palmtc_pcmcia_hw_init, - .hw_shutdown = palmtc_pcmcia_hw_shutdown, - - .socket_state = palmtc_pcmcia_socket_state, - .configure_socket = palmtc_pcmcia_configure_socket, -}; - -static struct platform_device *palmtc_pcmcia_device; - -static int __init palmtc_pcmcia_init(void) -{ - int ret; - - if (!machine_is_palmtc()) - return -ENODEV; - - palmtc_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1); - if (!palmtc_pcmcia_device) - return -ENOMEM; - - ret = platform_device_add_data(palmtc_pcmcia_device, &palmtc_pcmcia_ops, - sizeof(palmtc_pcmcia_ops)); - - if (!ret) - ret = platform_device_add(palmtc_pcmcia_device); - - if (ret) - platform_device_put(palmtc_pcmcia_device); - - return ret; -} - -static void __exit palmtc_pcmcia_exit(void) -{ - platform_device_unregister(palmtc_pcmcia_device); -} - -module_init(palmtc_pcmcia_init); -module_exit(palmtc_pcmcia_exit); - -MODULE_AUTHOR("Alex Osborne <ato@meshy.org>," - " Marek Vasut <marek.vasut@gmail.com>"); -MODULE_DESCRIPTION("PCMCIA support for Palm Tungsten|C"); -MODULE_ALIAS("platform:pxa2xx-pcmcia"); -MODULE_LICENSE("GPL"); |