1 files changed, 111 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/palmtx-pcmcia.c b/arch/arm/mach-pxa/palmtx-pcmcia.c
new file mode 100644
index 000000000..8c2aaad93
--- /dev/null
+++ b/arch/arm/mach-pxa/palmtx-pcmcia.c
@@ -0,0 +1,111 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * linux/drivers/pcmcia/pxa2xx_palmtx.c
+ *
+ * Driver for Palm T|X PCMCIA
+ *
+ * Copyright (C) 2007-2011 Marek Vasut <marek.vasut@gmail.com>
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+
+#include <asm/mach-types.h>
+#include "palmtx.h"
+#include <pcmcia/soc_common.h>
+
+static struct gpio palmtx_pcmcia_gpios[] = {
+	{ GPIO_NR_PALMTX_PCMCIA_POWER1,	GPIOF_INIT_LOW,	"PCMCIA Power 1" },
+	{ GPIO_NR_PALMTX_PCMCIA_POWER2,	GPIOF_INIT_LOW,	"PCMCIA Power 2" },
+	{ GPIO_NR_PALMTX_PCMCIA_RESET,	GPIOF_INIT_HIGH,"PCMCIA Reset" },
+};
+
+static int palmtx_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
+{
+	int ret;
+
+	ret = gpio_request_array(palmtx_pcmcia_gpios,
+				ARRAY_SIZE(palmtx_pcmcia_gpios));
+
+	skt->stat[SOC_STAT_RDY].gpio = GPIO_NR_PALMTX_PCMCIA_READY;
+	skt->stat[SOC_STAT_RDY].name = "PCMCIA Ready";
+
+	return ret;
+}
+
+static void palmtx_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
+{
+	gpio_free_array(palmtx_pcmcia_gpios, ARRAY_SIZE(palmtx_pcmcia_gpios));
+}
+
+static void palmtx_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
+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 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,
+};
+
+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);
+}
+
+module_init(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");