ARM: tegra: paz00: enable nvec keyboard support

Signed-off-by: Andrey Danin <danindrey@mail.ru>
[squashed, forward ported, and cleaned up]
Signed-off-by: Marc Dietrich <marvin24@gmx.de>

Author: marvintwentyfour

arch/arm/dts/tegra20-paz00.dts

@@ -633,4 +633,19 @@
 		         <&tegra_car TEGRA20_CLK_CDEV1>;
 		clock-names = "pll_a", "pll_a_out0", "mclk";
 	};
+
+	nvec {
+		compatible = "nvidia,tegra20-nvec";
+		reg = <0x7000c500 0x100>;
+		clock-frequency = <80000>;
+		request-gpios = <&gpio TEGRA_GPIO(V, 2) GPIO_ACTIVE_LOW>;
+		slave-addr = <138>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		kbc@0x1 {
+			reg = <0x0 0x0>;
+			compatible = "nvidia,tegra20-nvec-kbc";
+		};
+	};
 };

configs/paz00_defconfig

@@ -8,6 +8,7 @@ CONFIG_ENV_OFFSET=0xFFFFE000
 CONFIG_DEFAULT_DEVICE_TREE="tegra20-paz00"
 CONFIG_SPL_TEXT_BASE=0x00108000
 CONFIG_TEGRA20=y
+CONFIG_DM_I2C=y
 CONFIG_TARGET_PAZ00=y
 CONFIG_SYS_LOAD_ADDR=0x1000000
 CONFIG_OF_SYSTEM_SETUP=y

include/configs/paz00.h

@@ -21,6 +21,18 @@
 
 /* Environment in eMMC, at the end of 2nd "boot sector" */
 
+/* Keyboard support */
+#define CONFIG_KEYBOARD
+#define CONFIG_TEGRA_NVEC_KEYBOARD
+/* NVEC support */
+#define CONFIG_CMD_I2C
+#define CONFIG_SYS_I2C_INIT_BOARD
+#define CONFIG_TEGRA_NVEC
+#define BOARD_EXTRA_ENV_SETTINGS \
+	"i2c dev 0" "\0" \
+	"i2c dev 1" "\0" \
+	"i2c dev 2" "\0"
+
 #include "tegra-common-post.h"
 
 #endif /* __CONFIG_H */

include/configs/tegra-common-post.h

@@ -32,6 +32,8 @@
 
 #ifdef CONFIG_TEGRA_KEYBOARD
 #define STDIN_KBD_KBC ",tegra-kbc"
+#elif defined(CONFIG_TEGRA_NVEC_KEYBOARD)
+#define STDIN_KBD_KBC ",tegra-nvec-kbc"
 #else
 #define STDIN_KBD_KBC ""
 #endif