1 files changed, 84 insertions, 0 deletions
diff --git a/src/soc/rockchip/rk3288/gpio.c b/src/soc/rockchip/rk3288/gpio.c
new file mode 100755
index 0000000000..46ef2eb114
--- /dev/null
+++ b/src/soc/rockchip/rk3288/gpio.c
@@ -0,0 +1,84 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2014 Rockchip Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <console/console.h>
+#include <arch/io.h>
+#include <stdlib.h>
+#include "cpu.h"
+#include "gpio.h"
+#include "pmu.h"
+
+struct rk3288_gpio_regs *gpio_port[] = {
+	(struct rk3288_gpio_regs *)0xff750000,
+	(struct rk3288_gpio_regs *)0xff780000,
+	(struct rk3288_gpio_regs *)0xff790000,
+	(struct rk3288_gpio_regs *)0xff7a0000,
+	(struct rk3288_gpio_regs *)0xff7b0000,
+	(struct rk3288_gpio_regs *)0xff7c0000,
+	(struct rk3288_gpio_regs *)0xff7d0000,
+	(struct rk3288_gpio_regs *)0xff7e0000,
+	(struct rk3288_gpio_regs *)0xff7f0000
+};
+
+enum {
+	PULLNONE = 0,
+	PULLUP,
+	PULLDOWN
+};
+
+#define PMU_GPIO_PORT 0
+
+static void __gpio_input(gpio_t gpio, u32 pull)
+{
+	clrbits_le32(&gpio_port[gpio.port]->swporta_ddr, 1 << gpio.num);
+	if (gpio.port == PMU_GPIO_PORT)
+		clrsetbits_le32(&rk3288_pmu->gpio0pull[gpio.bank],
+				3 << (gpio.idx * 2),  pull << (gpio.idx * 2));
+	else
+		writel(RK_CLRSETBITS(3 << (gpio.idx * 2),
+			pull << (gpio.idx * 2)),
+			&rk3288_grf->gpio1_p[(gpio.port - 1)][gpio.bank]);
+}
+
+void gpio_input(gpio_t gpio)
+{
+	__gpio_input(gpio, PULLNONE);
+}
+
+void gpio_input_pulldown(gpio_t gpio)
+{
+	__gpio_input(gpio, PULLDOWN);
+}
+
+void gpio_input_pullup(gpio_t gpio)
+{
+	__gpio_input(gpio, PULLUP);
+}
+
+int gpio_get_in_value(gpio_t gpio)
+{
+	return (readl(&gpio_port[gpio.port]->ext_porta) >> gpio.num) & 0x1;
+}
+
+void gpio_output(gpio_t gpio, int value)
+{
+	setbits_le32(&gpio_port[gpio.port]->swporta_ddr, 1 << gpio.num);
+	clrsetbits_le32(&gpio_port[gpio.port]->swporta_dr, 1 << gpio.num,
+							   !!value << gpio.num);
+}