[U-Boot] [PATCH v6 11/26] tegra: nyan-big: Add LCD PMIC init and board ID

Simon Glass
2015-04-15T03:03:29Z

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>
---

Changes in v6: None
Changes in v4: None
Changes in v3: None
Changes in v2: None

arch/arm/dts/tegra124-nyan-big.dts | 4 ++++
board/nvidia/nyan-big/nyan-big.c | 34 +++++++++++++++++++++++++++++++++-
2 files changed, 37 insertions(+), 1 deletion(-)

diff --git a/arch/arm/dts/tegra124-nyan-big.dts b/arch/arm/dts/tegra124-nyan-big.dts
index 9367193..a50f26c 100644
--- a/arch/arm/dts/tegra124-nyan-big.dts
+++ b/arch/arm/dts/tegra124-nyan-big.dts
@@ -310,6 +310,10 @@
};
};

+ gpio at 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
--- 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;
+}
--
2.2.0.rc0.207.ga3a616c