[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/pcmcia/pxa2xx_viper.c b/src/kernel/linux/v4.14/drivers/pcmcia/pxa2xx_viper.c
new file mode 100644
index 0000000..7ac6647
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/pcmcia/pxa2xx_viper.c
@@ -0,0 +1,182 @@
+/*
+ * Viper/Zeus PCMCIA support
+ * Copyright 2004 Arcom Control Systems
+ *
+ * Maintained by Marc Zyngier <maz@misterjones.org>
+ *
+ * Based on:
+ * iPAQ h2200 PCMCIA support
+ * Copyright 2004 Koen Kooi <koen@vestingbar.nl>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive for
+ * more details.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+
+#include <pcmcia/ss.h>
+
+#include <asm/irq.h>
+
+#include <linux/platform_data/pcmcia-pxa2xx_viper.h>
+
+#include "soc_common.h"
+#include "pxa2xx_base.h"
+
+static struct platform_device *arcom_pcmcia_dev;
+
+static inline struct arcom_pcmcia_pdata *viper_get_pdata(void)
+{
+ return arcom_pcmcia_dev->dev.platform_data;
+}
+
+static int viper_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
+{
+ struct arcom_pcmcia_pdata *pdata = viper_get_pdata();
+ unsigned long flags;
+
+ skt->stat[SOC_STAT_CD].gpio = pdata->cd_gpio;
+ skt->stat[SOC_STAT_CD].name = "PCMCIA_CD";
+ skt->stat[SOC_STAT_RDY].gpio = pdata->rdy_gpio;
+ skt->stat[SOC_STAT_RDY].name = "CF ready";
+
+ if (gpio_request(pdata->pwr_gpio, "CF power"))
+ goto err_request_pwr;
+
+ local_irq_save(flags);
+
+ if (gpio_direction_output(pdata->pwr_gpio, 0)) {
+ local_irq_restore(flags);
+ goto err_dir;
+ }
+
+ local_irq_restore(flags);
+
+ return 0;
+
+err_dir:
+ gpio_free(pdata->pwr_gpio);
+err_request_pwr:
+ dev_err(&arcom_pcmcia_dev->dev, "Failed to setup PCMCIA GPIOs\n");
+ return -1;
+}
+
+/*
+ * Release all resources.
+ */
+static void viper_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
+{
+ struct arcom_pcmcia_pdata *pdata = viper_get_pdata();
+
+ gpio_free(pdata->pwr_gpio);
+}
+
+static void viper_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
+ struct pcmcia_state *state)
+{
+ state->vs_3v = 1; /* Can only apply 3.3V */
+ state->vs_Xv = 0;
+}
+
+static int viper_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
+ const socket_state_t *state)
+{
+ struct arcom_pcmcia_pdata *pdata = viper_get_pdata();
+
+ /* Silently ignore Vpp, output enable, speaker enable. */
+ pdata->reset(state->flags & SS_RESET);
+
+ /* Apply socket voltage */
+ switch (state->Vcc) {
+ case 0:
+ gpio_set_value(pdata->pwr_gpio, 0);
+ break;
+ case 33:
+ gpio_set_value(pdata->pwr_gpio, 1);
+ break;
+ default:
+ dev_err(&arcom_pcmcia_dev->dev, "Unsupported Vcc:%d\n", state->Vcc);
+ return -1;
+ }
+
+ return 0;
+}
+
+static struct pcmcia_low_level viper_pcmcia_ops = {
+ .owner = THIS_MODULE,
+ .hw_init = viper_pcmcia_hw_init,
+ .hw_shutdown = viper_pcmcia_hw_shutdown,
+ .socket_state = viper_pcmcia_socket_state,
+ .configure_socket = viper_pcmcia_configure_socket,
+ .nr = 1,
+};
+
+static struct platform_device *viper_pcmcia_device;
+
+static int viper_pcmcia_probe(struct platform_device *pdev)
+{
+ int ret;
+
+ /* I can't imagine more than one device, but you never know... */
+ if (arcom_pcmcia_dev)
+ return -EEXIST;
+
+ if (!pdev->dev.platform_data)
+ return -EINVAL;
+
+ viper_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
+ if (!viper_pcmcia_device)
+ return -ENOMEM;
+
+ arcom_pcmcia_dev = pdev;
+
+ viper_pcmcia_device->dev.parent = &pdev->dev;
+
+ ret = platform_device_add_data(viper_pcmcia_device,
+ &viper_pcmcia_ops,
+ sizeof(viper_pcmcia_ops));
+
+ if (!ret)
+ ret = platform_device_add(viper_pcmcia_device);
+
+ if (ret) {
+ platform_device_put(viper_pcmcia_device);
+ arcom_pcmcia_dev = NULL;
+ }
+
+ return ret;
+}
+
+static int viper_pcmcia_remove(struct platform_device *pdev)
+{
+ platform_device_unregister(viper_pcmcia_device);
+ arcom_pcmcia_dev = NULL;
+ return 0;
+}
+
+static struct platform_device_id viper_pcmcia_id_table[] = {
+ { .name = "viper-pcmcia", },
+ { .name = "zeus-pcmcia", },
+ { },
+};
+
+static struct platform_driver viper_pcmcia_driver = {
+ .probe = viper_pcmcia_probe,
+ .remove = viper_pcmcia_remove,
+ .driver = {
+ .name = "arcom-pcmcia",
+ },
+ .id_table = viper_pcmcia_id_table,
+};
+
+module_platform_driver(viper_pcmcia_driver);
+
+MODULE_DEVICE_TABLE(platform, viper_pcmcia_id_table);
+MODULE_LICENSE("GPL");