tegra: nyan-big: Add LCD PMIC init and board ID

Add required setup for the LCD display, and a function to provide the board ID. This requires GPIOs to be available prior to relocation. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>

tegra: nyan-big: Add LCD PMIC init and board ID
Add required setup for the LCD display, and a function to provide the board ID. This requires GPIOs to be available prior to relocation. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
Simon Glass · Tom Warren
1 parent 346451b588
Showing 2 changed files with 37 additions and 1 deletions Side-by-side Diff
arch/arm/dts/tegra124-nyan-big.dts
board/nvidia/nyan-big/nyan-big.c
@@ -310,6 +310,10 @@
 		};
 	};
  
+	gpio@6000d000 {
+		u-boot,dm-pre-reloc;
+	};
+
 	gpio-keys {
 		compatible = "gpio-keys";
  
@@ -6,8 +6,11 @@
  */
  
 #include <common.h>
-#include <asm/arch/gpio.h>
+#include <errno.h>
+#include <asm/gpio.h>
 #include <asm/arch/pinmux.h>
+#include <power/as3722.h>
+#include <power/pmic.h>
 #include "pinmux-config-nyan-big.h"
  
 /*
@@ -24,5 +27,34 @@
  
 	pinmux_config_drvgrp_table(nyan_big_drvgrps,
 				   ARRAY_SIZE(nyan_big_drvgrps));
+}
+
+int tegra_board_id(void)
+{
+	static const int vector[] = {GPIO_PQ3, GPIO_PT1, GPIO_PX1,
+					GPIO_PX4, -1};
+
+	gpio_claim_vector(vector, "board_id%d");
+	return gpio_get_values_as_int(vector);
+}
+
+int tegra_lcd_pmic_init(int board_id)
+{
+	struct udevice *pmic;
+	int ret;
+
+	ret = as3722_get(&pmic);
+	if (ret)
+		return -ENOENT;
+
+	if (board_id == 0)
+		as3722_write(pmic, 0x00, 0x3c);
+	else
+		as3722_write(pmic, 0x00, 0x50);
+	as3722_write(pmic, 0x12, 0x10);
+	as3722_write(pmic, 0x0c, 0x07);
+	as3722_write(pmic, 0x20, 0x10);
+
+	return 0;
 }
...	...	@@ -310,6 +310,10 @@
310	310	};
311	311	};
312	312
	313	+ gpio@6000d000 {
	314	+ u-boot,dm-pre-reloc;
	315	+ };
	316	+
313	317	gpio-keys {
314	318	compatible = "gpio-keys";
315	319
...	...	@@ -6,8 +6,11 @@
6	6	*/
7	7
8	8	#include <common.h>
9		-#include <asm/arch/gpio.h>
	9	+#include <errno.h>
	10	+#include <asm/gpio.h>
10	11	#include <asm/arch/pinmux.h>
	12	+#include <power/as3722.h>
	13	+#include <power/pmic.h>
11	14	#include "pinmux-config-nyan-big.h"
12	15
13	16	/*
...	...	@@ -24,5 +27,34 @@
24	27
25	28	pinmux_config_drvgrp_table(nyan_big_drvgrps,
26	29	ARRAY_SIZE(nyan_big_drvgrps));
	30	+}
	31	+
	32	+int tegra_board_id(void)
	33	+{
	34	+ static const int vector[] = {GPIO_PQ3, GPIO_PT1, GPIO_PX1,
	35	+ GPIO_PX4, -1};
	36	+
	37	+ gpio_claim_vector(vector, "board_id%d");
	38	+ return gpio_get_values_as_int(vector);
	39	+}
	40	+
	41	+int tegra_lcd_pmic_init(int board_id)
	42	+{
	43	+ struct udevice *pmic;
	44	+ int ret;
	45	+
	46	+ ret = as3722_get(&pmic);
	47	+ if (ret)
	48	+ return -ENOENT;
	49	+
	50	+ if (board_id == 0)
	51	+ as3722_write(pmic, 0x00, 0x3c);
	52	+ else
	53	+ as3722_write(pmic, 0x00, 0x50);
	54	+ as3722_write(pmic, 0x12, 0x10);
	55	+ as3722_write(pmic, 0x0c, 0x07);
	56	+ as3722_write(pmic, 0x20, 0x10);
	57	+
	58	+ return 0;
27	59	}