---

yaml
---
r: 326802
b: refs/heads/master
c: 640a7af
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 167e62798ccd4172d02c8f10ca7010a301498aa3
+refs/heads/master: 640a7af58b4ac9ca2347a25410b364829bde1bb7

trunk/arch/arm/boot/dts/tegra30-cardhu-a02.dts

@@ -0,0 +1,11 @@
+/dts-v1/;
+
+/include/ "tegra30-cardhu.dtsi"
+
+/* This dts file support the cardhu A02 version of board */
+
+/ {
+	model = "NVIDIA Tegra30 Cardhu A02 evaluation board";
+	compatible = "nvidia,cardhu-a02", "nvidia,cardhu", "nvidia,tegra30";
+};
+

trunk/arch/arm/boot/dts/tegra30-cardhu-a04.dts

@@ -0,0 +1,10 @@
+/dts-v1/;
+
+/include/ "tegra30-cardhu.dtsi"
+
+/* This dts file support the cardhu A04 and later versions of board */
+
+/ {
+	model = "NVIDIA Tegra30 Cardhu A04 (A05, A06, A07) evaluation board";
+	compatible = "nvidia,cardhu-a04", "nvidia,cardhu", "nvidia,tegra30";
+};

trunk/arch/arm/boot/dts/tegra30-cardhu.dts → trunk/arch/arm/boot/dts/tegra30-cardhu.dtsi

@@ -1,7 +1,28 @@
-/dts-v1/;
-
 /include/ "tegra30.dtsi"
 
+/**
+ * This file contains common DT entry for all fab version of Cardhu.
+ * There is multiple fab version of Cardhu starting from A01 to A07.
+ * Cardhu fab version A01 and A03 are not supported. Cardhu fab version
+ * A02 will have different sets of GPIOs for fixed regulator compare to
+ * Cardhu fab version A04. The Cardhu fab version A05, A06, A07 are
+ * compatible with fab version A04. Based on Cardhu fab version, the
+ * related dts file need to be chosen like for Cardhu fab version A02,
+ * use tegra30-cardhu-a02.dts, Cardhu fab version A04 and later, use
+ * tegra30-cardhu-a04.dts.
+ * The identification of board is done in two ways, by looking the sticker
+ * on PCB and by reading board id eeprom.
+ * The stciker will have number like 600-81291-1000-002 C.3. In this 4th
+ * number is the fab version like here it is 002 and hence fab version A02.
+ * The (downstream internal) U-Boot of Cardhu display the board-id as
+ * follows:
+ * BoardID: 0C5B, SKU: 0A01, Fab: 02, Rev: 45.00
+ * In this Fab version is 02 i.e. A02.
+ * The BoardID I2C eeprom is interfaced through i2c5 (pwr_i2c address 0x56).
+ * The location 0x8 of this eeprom contains the Fab version. It is 1 byte
+ * wide.
+ */
+
 / {
 	model = "NVIDIA Tegra30 Cardhu evaluation board";
 	compatible = "nvidia,cardhu", "nvidia,tegra30";

trunk/arch/arm/mach-tegra/Makefile.boot

@@ -8,4 +8,5 @@ dtb-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra20-seaboard.dtb
 dtb-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra20-trimslice.dtb
 dtb-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra20-ventana.dtb
 dtb-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra20-whistler.dtb
-dtb-$(CONFIG_ARCH_TEGRA_3x_SOC) += tegra30-cardhu.dtb
+dtb-$(CONFIG_ARCH_TEGRA_3x_SOC) += tegra30-cardhu-a02.dtb
+dtb-$(CONFIG_ARCH_TEGRA_3x_SOC) += tegra30-cardhu-a04.dtb