X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fdrivers%2Fpcmcia%2Fpxa2xx_vpac270.c;fp=kernel%2Fdrivers%2Fpcmcia%2Fpxa2xx_vpac270.c;h=a47dcd24a26a3eab642cc7a9671e5128f581d7a1;hb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;hp=0000000000000000000000000000000000000000;hpb=98260f3884f4a202f9ca5eabed40b1354c489b29;p=kvmfornfv.git

diff --git a/kernel/drivers/pcmcia/pxa2xx_vpac270.c b/kernel/drivers/pcmcia/pxa2xx_vpac270.c
new file mode 100644
index 000000000..a47dcd24a
--- /dev/null
+++ b/kernel/drivers/pcmcia/pxa2xx_vpac270.c
@@ -0,0 +1,142 @@
+/*
+ * linux/drivers/pcmcia/pxa2xx_vpac270.c
+ *
+ * Driver for Voipac PXA270 PCMCIA and CF sockets
+ *
+ * Copyright (C) 2010-2011 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/gpio.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach-types.h>
+
+#include <asm/gpio.h>
+#include <mach/vpac270.h>
+
+#include "soc_common.h"
+
+static struct gpio vpac270_pcmcia_gpios[] = {
+	{ GPIO107_VPAC270_PCMCIA_PPEN,	GPIOF_INIT_LOW,	"PCMCIA PPEN" },
+	{ GPIO11_VPAC270_PCMCIA_RESET,	GPIOF_INIT_LOW,	"PCMCIA Reset" },
+};
+
+static struct gpio vpac270_cf_gpios[] = {
+	{ GPIO16_VPAC270_CF_RESET,	GPIOF_INIT_LOW,	"CF Reset" },
+};
+
+static int vpac270_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
+{
+	int ret;
+
+	if (skt->nr == 0) {
+		ret = gpio_request_array(vpac270_pcmcia_gpios,
+				ARRAY_SIZE(vpac270_pcmcia_gpios));
+
+		skt->stat[SOC_STAT_CD].gpio = GPIO84_VPAC270_PCMCIA_CD;
+		skt->stat[SOC_STAT_CD].name = "PCMCIA CD";
+		skt->stat[SOC_STAT_RDY].gpio = GPIO35_VPAC270_PCMCIA_RDY;
+		skt->stat[SOC_STAT_RDY].name = "PCMCIA Ready";
+	} else {
+		ret = gpio_request_array(vpac270_cf_gpios,
+				ARRAY_SIZE(vpac270_cf_gpios));
+
+		skt->stat[SOC_STAT_CD].gpio = GPIO17_VPAC270_CF_CD;
+		skt->stat[SOC_STAT_CD].name = "CF CD";
+		skt->stat[SOC_STAT_RDY].gpio = GPIO12_VPAC270_CF_RDY;
+		skt->stat[SOC_STAT_RDY].name = "CF Ready";
+	}
+
+	return ret;
+}
+
+static void vpac270_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
+{
+	if (skt->nr == 0)
+		gpio_free_array(vpac270_pcmcia_gpios,
+					ARRAY_SIZE(vpac270_pcmcia_gpios));
+	else
+		gpio_free_array(vpac270_cf_gpios,
+					ARRAY_SIZE(vpac270_cf_gpios));
+}
+
+static void vpac270_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
+					struct pcmcia_state *state)
+{
+	state->vs_3v  = 1;
+	state->vs_Xv  = 0;
+}
+
+static int
+vpac270_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
+				const socket_state_t *state)
+{
+	if (skt->nr == 0) {
+		gpio_set_value(GPIO11_VPAC270_PCMCIA_RESET,
+			(state->flags & SS_RESET));
+		gpio_set_value(GPIO107_VPAC270_PCMCIA_PPEN,
+			!(state->Vcc == 33 || state->Vcc == 50));
+	} else {
+		gpio_set_value(GPIO16_VPAC270_CF_RESET,
+			(state->flags & SS_RESET));
+	}
+
+	return 0;
+}
+
+static struct pcmcia_low_level vpac270_pcmcia_ops = {
+	.owner			= THIS_MODULE,
+
+	.first			= 0,
+	.nr			= 2,
+
+	.hw_init		= vpac270_pcmcia_hw_init,
+	.hw_shutdown		= vpac270_pcmcia_hw_shutdown,
+
+	.socket_state		= vpac270_pcmcia_socket_state,
+	.configure_socket	= vpac270_pcmcia_configure_socket,
+};
+
+static struct platform_device *vpac270_pcmcia_device;
+
+static int __init vpac270_pcmcia_init(void)
+{
+	int ret;
+
+	if (!machine_is_vpac270())
+		return -ENODEV;
+
+	vpac270_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
+	if (!vpac270_pcmcia_device)
+		return -ENOMEM;
+
+	ret = platform_device_add_data(vpac270_pcmcia_device,
+		&vpac270_pcmcia_ops, sizeof(vpac270_pcmcia_ops));
+
+	if (!ret)
+		ret = platform_device_add(vpac270_pcmcia_device);
+
+	if (ret)
+		platform_device_put(vpac270_pcmcia_device);
+
+	return ret;
+}
+
+static void __exit vpac270_pcmcia_exit(void)
+{
+	platform_device_unregister(vpac270_pcmcia_device);
+}
+
+module_init(vpac270_pcmcia_init);
+module_exit(vpac270_pcmcia_exit);
+
+MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
+MODULE_DESCRIPTION("PCMCIA support for Voipac PXA270");
+MODULE_ALIAS("platform:pxa2xx-pcmcia");
+MODULE_LICENSE("GPL");