[ARM] 5154/1: PalmTX PCMCIA
This patch adds PCMCIA support for PalmTX handheld computer.
There is one chip hard-soldered to slot0, another slot is
not in use and not accessible.
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_palmtx.c b/drivers/pcmcia/pxa2xx_palmtx.c
new file mode 100644
index 0000000..4abde19
--- /dev/null
+++ b/drivers/pcmcia/pxa2xx_palmtx.c
@@ -0,0 +1,118 @@
+/*
+ * linux/drivers/pcmcia/pxa2xx_palmtx.c
+ *
+ * Driver for Palm T|X PCMCIA
+ *
+ * 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 <asm/mach-types.h>
+
+#include <asm/arch/gpio.h>
+#include <asm/arch/palmtx.h>
+
+#include "soc_common.h"
+
+static int palmtx_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
+{
+ skt->irq = IRQ_GPIO(GPIO_NR_PALMTX_PCMCIA_READY);
+ return 0;
+}
+
+static void palmtx_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
+{
+}
+
+static void palmtx_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
+ struct pcmcia_state *state)
+{
+ state->detect = 1; /* always inserted */
+ state->ready = !!gpio_get_value(GPIO_NR_PALMTX_PCMCIA_READY);
+ state->bvd1 = 1;
+ state->bvd2 = 1;
+ state->wrprot = 0;
+ state->vs_3v = 1;
+ state->vs_Xv = 0;
+}
+
+static int
+palmtx_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
+ const socket_state_t *state)
+{
+ gpio_set_value(GPIO_NR_PALMTX_PCMCIA_POWER1, 1);
+ gpio_set_value(GPIO_NR_PALMTX_PCMCIA_POWER2, 1);
+ gpio_set_value(GPIO_NR_PALMTX_PCMCIA_RESET,
+ !!(state->flags & SS_RESET));
+
+ return 0;
+}
+
+static void palmtx_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
+{
+}
+
+static void palmtx_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
+{
+}
+
+static struct pcmcia_low_level palmtx_pcmcia_ops = {
+ .owner = THIS_MODULE,
+
+ .first = 0,
+ .nr = 1,
+
+ .hw_init = palmtx_pcmcia_hw_init,
+ .hw_shutdown = palmtx_pcmcia_hw_shutdown,
+
+ .socket_state = palmtx_pcmcia_socket_state,
+ .configure_socket = palmtx_pcmcia_configure_socket,
+
+ .socket_init = palmtx_pcmcia_socket_init,
+ .socket_suspend = palmtx_pcmcia_socket_suspend,
+};
+
+static struct platform_device *palmtx_pcmcia_device;
+
+static int __init palmtx_pcmcia_init(void)
+{
+ int ret;
+
+ if (!machine_is_palmtx())
+ return -ENODEV;
+
+ palmtx_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
+ if (!palmtx_pcmcia_device)
+ return -ENOMEM;
+
+ ret = platform_device_add_data(palmtx_pcmcia_device, &palmtx_pcmcia_ops,
+ sizeof(palmtx_pcmcia_ops));
+
+ if (!ret)
+ ret = platform_device_add(palmtx_pcmcia_device);
+
+ if (ret)
+ platform_device_put(palmtx_pcmcia_device);
+
+ return ret;
+}
+
+static void __exit palmtx_pcmcia_exit(void)
+{
+ platform_device_unregister(palmtx_pcmcia_device);
+}
+
+fs_initcall(palmtx_pcmcia_init);
+module_exit(palmtx_pcmcia_exit);
+
+MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
+MODULE_DESCRIPTION("PCMCIA support for Palm T|X");
+MODULE_ALIAS("platform:pxa2xx-pcmcia");
+MODULE_LICENSE("GPL");