[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/gpio/gpio-ge.c b/src/kernel/linux/v4.14/drivers/gpio/gpio-ge.c
new file mode 100644
index 0000000..6f5a7fe
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/gpio/gpio-ge.c
@@ -0,0 +1,112 @@
+/*
+ * Driver for GE FPGA based GPIO
+ *
+ * Author: Martyn Welch <martyn.welch@ge.com>
+ *
+ * 2008 (c) GE Intelligent Platforms Embedded Systems, Inc.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+/* TODO
+ *
+ * Configuration of output modes (totem-pole/open-drain)
+ * Interrupt configuration - interrupts are always generated the FPGA relies on
+ * the I/O interrupt controllers mask to stop them propergating
+ */
+
+#include <linux/kernel.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/of_device.h>
+#include <linux/of_gpio.h>
+#include <linux/of_address.h>
+#include <linux/module.h>
+#include <linux/gpio/driver.h>
+
+#define GEF_GPIO_DIRECT 0x00
+#define GEF_GPIO_IN 0x04
+#define GEF_GPIO_OUT 0x08
+#define GEF_GPIO_TRIG 0x0C
+#define GEF_GPIO_POLAR_A 0x10
+#define GEF_GPIO_POLAR_B 0x14
+#define GEF_GPIO_INT_STAT 0x18
+#define GEF_GPIO_OVERRUN 0x1C
+#define GEF_GPIO_MODE 0x20
+
+static const struct of_device_id gef_gpio_ids[] = {
+ {
+ .compatible = "gef,sbc610-gpio",
+ .data = (void *)19,
+ }, {
+ .compatible = "gef,sbc310-gpio",
+ .data = (void *)6,
+ }, {
+ .compatible = "ge,imp3a-gpio",
+ .data = (void *)16,
+ },
+ { }
+};
+MODULE_DEVICE_TABLE(of, gef_gpio_ids);
+
+static int __init gef_gpio_probe(struct platform_device *pdev)
+{
+ const struct of_device_id *of_id =
+ of_match_device(gef_gpio_ids, &pdev->dev);
+ struct gpio_chip *gc;
+ void __iomem *regs;
+ int ret;
+
+ gc = devm_kzalloc(&pdev->dev, sizeof(*gc), GFP_KERNEL);
+ if (!gc)
+ return -ENOMEM;
+
+ regs = of_iomap(pdev->dev.of_node, 0);
+ if (!regs)
+ return -ENOMEM;
+
+ ret = bgpio_init(gc, &pdev->dev, 4, regs + GEF_GPIO_IN,
+ regs + GEF_GPIO_OUT, NULL, NULL,
+ regs + GEF_GPIO_DIRECT, BGPIOF_BIG_ENDIAN_BYTE_ORDER);
+ if (ret) {
+ dev_err(&pdev->dev, "bgpio_init failed\n");
+ goto err0;
+ }
+
+ /* Setup pointers to chip functions */
+ gc->label = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%pOF", pdev->dev.of_node);
+ if (!gc->label) {
+ ret = -ENOMEM;
+ goto err0;
+ }
+
+ gc->base = -1;
+ gc->ngpio = (u16)(uintptr_t)of_id->data;
+ gc->of_gpio_n_cells = 2;
+ gc->of_node = pdev->dev.of_node;
+
+ /* This function adds a memory mapped GPIO chip */
+ ret = devm_gpiochip_add_data(&pdev->dev, gc, NULL);
+ if (ret)
+ goto err0;
+
+ return 0;
+err0:
+ iounmap(regs);
+ pr_err("%pOF: GPIO chip registration failed\n", pdev->dev.of_node);
+ return ret;
+};
+
+static struct platform_driver gef_gpio_driver = {
+ .driver = {
+ .name = "gef-gpio",
+ .of_match_table = gef_gpio_ids,
+ },
+};
+module_platform_driver_probe(gef_gpio_driver, gef_gpio_probe);
+
+MODULE_DESCRIPTION("GE I/O FPGA GPIO driver");
+MODULE_AUTHOR("Martyn Welch <martyn.welch@ge.com");
+MODULE_LICENSE("GPL");