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>

diff --git a/arch/arm/dts/tegra124-nyan-big.dts b/arch/arm/dts/tegra124-nyan-big.dts
index 9367193..a50f26c 100644 (file)
--- a/arch/arm/dts/tegra124-nyan-big.dts
+++ b/arch/arm/dts/tegra124-nyan-big.dts
@@ -310,6 +310,10 @@
                };
        };
 
+       gpio@6000d000 {
+               u-boot,dm-pre-reloc;
+       };
+
        gpio-keys {
                compatible = "gpio-keys";
 

diff --git a/board/nvidia/nyan-big/nyan-big.c b/board/nvidia/nyan-big/nyan-big.c
index d4d2496..ae8874b 100644 (file)
--- a/board/nvidia/nyan-big/nyan-big.c
+++ b/board/nvidia/nyan-big/nyan-big.c
@@ -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"
 
 /*
@@ -25,3 +28,32 @@ void pinmux_init(void)
        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;
+}