board: Add support for KEY1 status detection on K+P's HSC|DDC boards

This code provides information if the K+P's imx53 boards had KEY1 pressed. Signed-off-by: Lukasz Majewski <lukma@denx.de>

board: Add support for KEY1 status detection on K+P's HSC|DDC boards
This code provides information if the K+P's imx53 boards had KEY1 pressed. Signed-off-by: Lukasz Majewski <lukma@denx.de>
Lukasz Majewski · Stefano Babic
1 parent 5ca614cae9
Showing 2 changed files with 16 additions and 0 deletions Side-by-side Diff
arch/arm/dts/imx53-kp.dts
board/k+p/kp_imx53/kp_imx53.c
@@ -88,6 +88,8 @@
 				MX53_PAD_EIM_CS0__GPIO2_23 0x1e4
 				/* LCD BACKLIGHT */
 				MX53_PAD_GPIO_1__GPIO1_1 0x1e4
+				/* KEY1 GPIO */
+				MX53_PAD_EIM_RW__GPIO2_26 0x1e4
 			>;
 		};
  
@@ -23,6 +23,7 @@
 #define PHY_nRST IMX_GPIO_NR(7, 6)
 #define BOOSTER_OFF IMX_GPIO_NR(2, 23)
 #define LCD_BACKLIGHT IMX_GPIO_NR(1, 1)
+#define KEY1 IMX_GPIO_NR(2, 26)
  
 DECLARE_GLOBAL_DATA_PTR;
  
@@ -196,6 +197,17 @@
 	gpio_direction_output(LCD_BACKLIGHT, 0);
 }
  
+void board_misc_setup(void)
+{
+	gpio_request(KEY1, "KEY1_GPIO");
+	gpio_direction_input(KEY1);
+
+	if (gpio_get_value(KEY1))
+		env_set("key1", "off");
+	else
+		env_set("key1", "on");
+}
+
 int board_late_init(void)
 {
 	int ret = 0;
@@ -214,6 +226,8 @@
  
 	show_eeprom();
 	read_board_id();
+
+	board_misc_setup();
  
 	return ret;
 }
...	...	@@ -88,6 +88,8 @@
88	88	MX53_PAD_EIM_CS0__GPIO2_23 0x1e4
89	89	/* LCD BACKLIGHT */
90	90	MX53_PAD_GPIO_1__GPIO1_1 0x1e4
	91	+ /* KEY1 GPIO */
	92	+ MX53_PAD_EIM_RW__GPIO2_26 0x1e4
91	93	>;
92	94	};
93	95
...	...	@@ -23,6 +23,7 @@
23	23	#define PHY_nRST IMX_GPIO_NR(7, 6)
24	24	#define BOOSTER_OFF IMX_GPIO_NR(2, 23)
25	25	#define LCD_BACKLIGHT IMX_GPIO_NR(1, 1)
	26	+#define KEY1 IMX_GPIO_NR(2, 26)
26	27
27	28	DECLARE_GLOBAL_DATA_PTR;
28	29
...	...	@@ -196,6 +197,17 @@
196	197	gpio_direction_output(LCD_BACKLIGHT, 0);
197	198	}
198	199
	200	+void board_misc_setup(void)
	201	+{
	202	+ gpio_request(KEY1, "KEY1_GPIO");
	203	+ gpio_direction_input(KEY1);
	204	+
	205	+ if (gpio_get_value(KEY1))
	206	+ env_set("key1", "off");
	207	+ else
	208	+ env_set("key1", "on");
	209	+}
	210	+
199	211	int board_late_init(void)
200	212	{
201	213	int ret = 0;
...	...	@@ -214,6 +226,8 @@
214	226
215	227	show_eeprom();
216	228	read_board_id();
	229	+
	230	+ board_misc_setup();
217	231
218	232	return ret;
219	233	}