MLK-9766-3: ARM: dts: imx6sx-sdb: add ldo-bypass on imx6sx-sdb Revb board

Add ldo-bypass support on imx6sx-sdb Revb board whose VDDARM_IN connected with
VDDSOC_IN.

Signed-off-by: Robin Gong <b38343@freescale.com>

4 files changed, 52 insertions, 1 deletions

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index fc7d3b0dd81d..fe31332ab5f6 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -156,6 +156,7 @@ dtb-$(CONFIG_ARCH_MXC) += \
 	imx6sx-sdb.dtb \
 	imx6sx-sdb-ldo.dtb \
 	imx6sx-sdb-reva.dtb \
+	imx6sx-sdb-reva-ldo.dtb \
 	imx6sx-sdb-lcdif1.dtb \
 	imx6sx-sdb-sai.dtb \
 	imx6sx-sdb-emmc.dtb \
diff --git a/arch/arm/boot/dts/imx6sx-sdb-reva-ldo.dts b/arch/arm/boot/dts/imx6sx-sdb-reva-ldo.dts
new file mode 100644
index 000000000000..a248e05e5343
--- /dev/null
+++ b/arch/arm/boot/dts/imx6sx-sdb-reva-ldo.dts
@@ -0,0 +1,18 @@
+/*
+ * Copyright (C) 2014 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include "imx6sx-sdb-reva.dts"
+
+&cpu0 {
+	arm-supply = <&reg_arm>;
+	soc-supply = <&reg_soc>;
+};
+
+&gpc {
+	fsl,ldo-bypass = <0>; /* use ldo-enable, u-boot will check it and configure */
+};
diff --git a/arch/arm/boot/dts/imx6sx-sdb-reva.dts b/arch/arm/boot/dts/imx6sx-sdb-reva.dts
index 398a747c52e2..36041f10464e 100644
--- a/arch/arm/boot/dts/imx6sx-sdb-reva.dts
+++ b/arch/arm/boot/dts/imx6sx-sdb-reva.dts
@@ -13,6 +13,25 @@
  * This dts is used for support the old CAN transceiver on RevA board
  */
 
+&cpu0 {
+	operating-points = <
+		/* kHz    uV */
+		996000  1250000
+		792000  1175000
+		396000  1075000
+		>;
+	fsl,soc-operating-points = <
+		/* ARM kHz      SOC uV */
+		996000	1175000
+		792000	1175000
+		396000	1175000
+	>;
+	arm-supply = <&sw1a_reg>;
+	soc-supply = <&sw1c_reg>;
+	pu-supply = <&pu_dummy>;
+	fsl,arm-soc-shared = <0>;
+};
+
 &flexcan1 {
 	trx-en-gpio = <&gpio4 25 GPIO_ACTIVE_HIGH>;
 	trx-stby-gpio = <&gpio4 27 GPIO_ACTIVE_HIGH>;
diff --git a/arch/arm/boot/dts/imx6sx-sdb.dts b/arch/arm/boot/dts/imx6sx-sdb.dts
index e5e7145c69ce..4663a3cab255 100644
--- a/arch/arm/boot/dts/imx6sx-sdb.dts
+++ b/arch/arm/boot/dts/imx6sx-sdb.dts
@@ -159,9 +159,22 @@
 };
 
 &cpu0 {
+	operating-points = <
+		/* kHz    uV */
+		996000  1250000
+		792000  1175000
+		396000  1175000
+		>;
+	fsl,soc-operating-points = <
+		/* ARM kHz      SOC uV */
+		996000	1250000
+		792000	1175000
+		396000	1175000
+	>;
 	arm-supply = <&sw1a_reg>;
-	soc-supply = <&sw1c_reg>;
+	soc-supply = <&sw1a_reg>;
 	pu-supply = <&pu_dummy>;
+	fsl,arm-soc-shared = <1>;
 };
 
 &csi1 {