MLK-19589 baord: imx6ulz: add imx6ulz support

Add i.MX6ULZ support. the i.MX6ULZ is SW compatible
with i.MX6ULL. so most code of i.MX6ULL can be reused
by i.MX6ULZ.

Signed-off-by: Bai Ping <ping.bai@nxp.com>

6 files changed, 31 insertions, 1 deletions

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 44460a31dc..7c1958ba74 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -399,6 +399,7 @@ dtb-$(CONFIG_MX6) += imx6ul-14x14-ddr3-arm2.dtb \
 	imx6ull-14x14-evk.dtb \
 	imx6ull-14x14-evk-emmc.dtb \
 	imx6ull-14x14-evk-gpmi-weim.dtb \
+	imx6ulz-14x14-evk.dtb \
 	imx6sl-evk.dtb \
 	imx6sll-evk.dtb \
 	imx6sll-lpddr2-arm2.dtb \
diff --git a/arch/arm/dts/imx6ulz-14x14-evk.dts b/arch/arm/dts/imx6ulz-14x14-evk.dts
new file mode 100644
index 0000000000..42bf5352c6
--- /dev/null
+++ b/arch/arm/dts/imx6ulz-14x14-evk.dts
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2018 NXP.
+ *
+ * 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 "imx6ull-14x14-evk.dts"
+
+/ {
+	model = "Freescale i.MX6 ULZ 14x14 EVK Board";
+	compatible = "fsl,imx6ulz-14x14-evk", "fsl,imx6ull";
+
+	backlight {
+		status = "disabled";
+	};
+
+	pxp_v4l2 {
+		status = "disabled";
+	};
+};
diff --git a/arch/arm/include/asm/arch-imx/cpu.h b/arch/arm/include/asm/arch-imx/cpu.h
index c3ebb6dd47..24328a4a80 100644
--- a/arch/arm/include/asm/arch-imx/cpu.h
+++ b/arch/arm/include/asm/arch-imx/cpu.h
@@ -19,6 +19,7 @@
 #define MXC_CPU_MX6Q		0x63
 #define MXC_CPU_MX6UL		0x64
 #define MXC_CPU_MX6ULL		0x65
+#define MXC_CPU_MX6ULZ		0x6b /* dummy ID */
 #define MXC_CPU_MX6SOLO		0x66 /* dummy */
 #define MXC_CPU_MX6SLL		0x67
 #define MXC_CPU_MX6D		0x6A
diff --git a/arch/arm/include/asm/mach-imx/sys_proto.h b/arch/arm/include/asm/mach-imx/sys_proto.h
index 7c1b98b99b..0c7908b8c7 100644
--- a/arch/arm/include/asm/mach-imx/sys_proto.h
+++ b/arch/arm/include/asm/mach-imx/sys_proto.h
@@ -39,7 +39,7 @@
 #define is_mx6sl() (is_cpu_type(MXC_CPU_MX6SL))
 #define is_mx6solo() (is_cpu_type(MXC_CPU_MX6SOLO))
 #define is_mx6ul() (is_cpu_type(MXC_CPU_MX6UL))
-#define is_mx6ull() (is_cpu_type(MXC_CPU_MX6ULL))
+#define is_mx6ull() (is_cpu_type(MXC_CPU_MX6ULL) || is_cpu_type(MXC_CPU_MX6ULZ))
 #define is_mx6sll() (is_cpu_type(MXC_CPU_MX6SLL))
 
 #define is_mx7ulp() (is_cpu_type(MXC_CPU_MX7ULP))
diff --git a/arch/arm/mach-imx/cpu.c b/arch/arm/mach-imx/cpu.c
index 7dc9e75a64..d5f51bf1b9 100644
--- a/arch/arm/mach-imx/cpu.c
+++ b/arch/arm/mach-imx/cpu.c
@@ -201,6 +201,8 @@ const char *get_imx_type(u32 imxtype)
 		return "6UL";   /* Ultra-Lite version of the mx6 */
 	case MXC_CPU_MX6ULL:
 		return "6ULL";	/* ULL version of the mx6 */
+	case MXC_CPU_MX6ULZ:
+		return "6ULZ";	/* ULL version of the mx6 */
 	case MXC_CPU_MX51:
 		return "51";
 	case MXC_CPU_MX53:
diff --git a/arch/arm/mach-imx/mx6/soc.c b/arch/arm/mach-imx/mx6/soc.c
index b3653b918c..8950bcaffd 100644
--- a/arch/arm/mach-imx/mx6/soc.c
+++ b/arch/arm/mach-imx/mx6/soc.c
@@ -91,6 +91,10 @@ u32 get_cpu_rev(void)
 				type = MXC_CPU_MX6D;
 		}
 
+		if (type == MXC_CPU_MX6ULL) {
+			if (readl(SRC_BASE_ADDR + 0x1c) & (1 << 6))
+				type = MXC_CPU_MX6ULZ;
+		}
 	}
 	major = ((reg >> 8) & 0xff);
 	if ((major >= 1) &&