X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=doc%2FREADME.s5pc1xx;h=ab1f02469c5d5ca46e9b76c86d3b89318202da97;hb=3b6407b8ed95594de6ee4fddd3239e8841b4d2d6;hp=5a0fe33db1bd8649f9d169d4cb87575ee2bf663e;hpb=8bc4ee9e8213abe4031ea1720aa02fa98d4402ad;p=u-boot

diff --git a/doc/README.s5pc1xx b/doc/README.s5pc1xx
index 5a0fe33db1..ab1f02469c 100644
--- a/doc/README.s5pc1xx
+++ b/doc/README.s5pc1xx
@@ -41,7 +41,23 @@ To check SoC:
 		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
 =====