[ARM] 5199/1: PalmLD: PCMCIA driver
PCMCIA driver for Palm LifeDrive
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/drivers/pcmcia/pxa2xx_palmld.c b/drivers/pcmcia/pxa2xx_palmld.c
new file mode 100644
index 0000000..1736c67
--- /dev/null
+++ b/drivers/pcmcia/pxa2xx_palmld.c
@@ -0,0 +1,151 @@
+/*
+ * linux/drivers/pcmcia/pxa2xx_palmld.c
+ *
+ * Driver for Palm LifeDrive PCMCIA
+ *
+ * Copyright (C) 2006 Alex Osborne <ato@meshy.org>
+ * Copyright (C) 2007-2008 Marek Vasut <marek.vasut@gmail.com>
+ *
+ * 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.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+
+#include <asm/mach-types.h>
+#include <mach/palmld.h>
+#include "soc_common.h"
+
+static int palmld_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
+{
+ int ret;
+
+ ret = gpio_request(GPIO_NR_PALMLD_PCMCIA_POWER, "PCMCIA PWR");
+ if (ret)
+ goto err1;
+ ret = gpio_direction_output(GPIO_NR_PALMLD_PCMCIA_POWER, 0);
+ if (ret)
+ goto err2;
+
+ ret = gpio_request(GPIO_NR_PALMLD_PCMCIA_RESET, "PCMCIA RST");
+ if (ret)
+ goto err2;
+ ret = gpio_direction_output(GPIO_NR_PALMLD_PCMCIA_RESET, 1);
+ if (ret)
+ goto err3;
+
+ ret = gpio_request(GPIO_NR_PALMLD_PCMCIA_READY, "PCMCIA RDY");
+ if (ret)
+ goto err3;
+ ret = gpio_direction_input(GPIO_NR_PALMLD_PCMCIA_READY);
+ if (ret)
+ goto err4;
+
+ skt->irq = IRQ_GPIO(GPIO_NR_PALMLD_PCMCIA_READY);
+ return 0;
+
+err4:
+ gpio_free(GPIO_NR_PALMLD_PCMCIA_READY);
+err3:
+ gpio_free(GPIO_NR_PALMLD_PCMCIA_RESET);
+err2:
+ gpio_free(GPIO_NR_PALMLD_PCMCIA_POWER);
+err1:
+ return ret;
+}
+
+static void palmld_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
+{
+ gpio_free(GPIO_NR_PALMLD_PCMCIA_READY);
+ gpio_free(GPIO_NR_PALMLD_PCMCIA_RESET);
+ gpio_free(GPIO_NR_PALMLD_PCMCIA_POWER);
+}
+
+static void palmld_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
+ struct pcmcia_state *state)
+{
+ state->detect = 1; /* always inserted */
+ state->ready = !!gpio_get_value(GPIO_NR_PALMLD_PCMCIA_READY);
+ state->bvd1 = 1;
+ state->bvd2 = 1;
+ state->wrprot = 0;
+ state->vs_3v = 1;
+ state->vs_Xv = 0;
+}
+
+static int palmld_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
+ const socket_state_t *state)
+{
+ gpio_set_value(GPIO_NR_PALMLD_PCMCIA_POWER, 1);
+ gpio_set_value(GPIO_NR_PALMLD_PCMCIA_RESET,
+ !!(state->flags & SS_RESET));
+
+ return 0;
+}
+
+static void palmld_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
+{
+}
+
+static void palmld_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
+{
+}
+
+static struct pcmcia_low_level palmld_pcmcia_ops = {
+ .owner = THIS_MODULE,
+
+ .first = 0,
+ .nr = 2,
+
+ .hw_init = palmld_pcmcia_hw_init,
+ .hw_shutdown = palmld_pcmcia_hw_shutdown,
+
+ .socket_state = palmld_pcmcia_socket_state,
+ .configure_socket = palmld_pcmcia_configure_socket,
+
+ .socket_init = palmld_pcmcia_socket_init,
+ .socket_suspend = palmld_pcmcia_socket_suspend,
+};
+
+static struct platform_device *palmld_pcmcia_device;
+
+static int __init palmld_pcmcia_init(void)
+{
+ int ret;
+
+ if (!machine_is_palmld())
+ return -ENODEV;
+
+ palmld_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
+ if (!palmld_pcmcia_device)
+ return -ENOMEM;
+
+ ret = platform_device_add_data(palmld_pcmcia_device, &palmld_pcmcia_ops,
+ sizeof(palmld_pcmcia_ops));
+
+ if (!ret)
+ ret = platform_device_add(palmld_pcmcia_device);
+
+ if (ret)
+ platform_device_put(palmld_pcmcia_device);
+
+ return ret;
+}
+
+static void __exit palmld_pcmcia_exit(void)
+{
+ platform_device_unregister(palmld_pcmcia_device);
+}
+
+module_init(palmld_pcmcia_init);
+module_exit(palmld_pcmcia_exit);
+
+MODULE_AUTHOR("Alex Osborne <ato@meshy.org>,"
+ " Marek Vasut <marek.vasut@gmail.com>");
+MODULE_DESCRIPTION("PCMCIA support for Palm LifeDrive");
+MODULE_ALIAS("platform:pxa2xx-pcmcia");
+MODULE_LICENSE("GPL");