s5pc1xx: update the README file

Because adds support the GPIO Interface, README file is updated. Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

s5pc1xx: update the README file
Because adds support the GPIO Interface, README file is updated. Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Minkyu Kang · trix
1 parent ab693e9c4c
Showing 1 changed file with 17 additions and 1 deletions Side-by-side Diff
doc/README.s5pc1xx
@@ -41,7 +41,23 @@
 		printf("cpu is s5pc110\n");
  
 gpio
-	not supported yet.
+
+	struct s5pc100_gpio *gpio = (struct s5pc100_gpio*)S5PC100_GPIO_BASE;
+
+	/* GPA[0] pin set to irq */
+	gpio_cfg_pin(&gpio->gpio_a, 0, GPIO_IRQ);
+
+	/* GPA[0] pin set to input */
+	gpio_direction_input(&gpio->gpio_a, 0);
+
+	/* GPA[0] pin set to output/high */
+	gpio_direction_output(&gpio->gpio_a, 0, 1);
+
+	/* GPA[0] value set to low */
+	gpio_set_value(&gpio->gpio_a, 0, 0);
+
+	/* get GPA[0] value */
+	value = gpio_get_value(&gpio->gpio_a, 0);
  
 Links
 =====
...	...	@@ -41,7 +41,23 @@
41	41	printf("cpu is s5pc110\n");
42	42
43	43	gpio
44		- not supported yet.
	44	+
	45	+ struct s5pc100_gpio gpio = (struct s5pc100_gpio)S5PC100_GPIO_BASE;
	46	+
	47	+ /* GPA[0] pin set to irq */
	48	+ gpio_cfg_pin(&gpio->gpio_a, 0, GPIO_IRQ);
	49	+
	50	+ /* GPA[0] pin set to input */
	51	+ gpio_direction_input(&gpio->gpio_a, 0);
	52	+
	53	+ /* GPA[0] pin set to output/high */
	54	+ gpio_direction_output(&gpio->gpio_a, 0, 1);
	55	+
	56	+ /* GPA[0] value set to low */
	57	+ gpio_set_value(&gpio->gpio_a, 0, 0);
	58	+
	59	+ /* get GPA[0] value */
	60	+ value = gpio_get_value(&gpio->gpio_a, 0);
45	61
46	62	Links
47	63	=====