[U-Boot] [PATCH] ARM: i.MX6: add i.MX6D to detected variants

[Markus Niebel]

From: Markus Niebel <Markus.Niebel at tqs.de>

Currently the dual cora variant is detected and displayed as quad core.
Add a define for MXC_CPU_MX6DUAL and implement the same SCU based
approach done for MX6DL / MX6S

Signed-off-by: Markus Niebel <Markus.Niebel at tqs.de>
---
 arch/arm/cpu/armv7/mx6/soc.c              |    6 ++++++
 arch/arm/imx-common/cpu.c                 |    2 ++
 arch/arm/include/asm/arch-mx5/sys_proto.h |    1 +
 arch/arm/include/asm/arch-mx6/sys_proto.h |    1 +
 4 files changed, 10 insertions(+)

diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c
index a390296..1f65d85 100644
--- a/arch/arm/cpu/armv7/mx6/soc.c
+++ b/arch/arm/cpu/armv7/mx6/soc.c
@@ -42,6 +42,12 @@ u32 get_cpu_rev(void)
 
 			if (!cfg)
 				type = MXC_CPU_MX6SOLO;
+		} else if (type == MXC_CPU_MX6Q) {
+			struct scu_regs *scu = (struct scu_regs *)SCU_BASE_ADDR;
+			u32 cfg = readl(&scu->config) & 3;
+
+			if (1 == cfg)
+				type = MXC_CPU_MX6DUAL;
 		}
 	}
 	reg &= 0xff;		/* mx6 silicon revision */
diff --git a/arch/arm/imx-common/cpu.c b/arch/arm/imx-common/cpu.c
index 0cd2538..77ef912 100644
--- a/arch/arm/imx-common/cpu.c
+++ b/arch/arm/imx-common/cpu.c
@@ -104,6 +104,8 @@ unsigned imx_ddr_size(void)
 const char *get_imx_type(u32 imxtype)
 {
 	switch (imxtype) {
+	case MXC_CPU_MX6DUAL:
+		return "6D";	/* Dual-core version of the mx6 */
 	case MXC_CPU_MX6Q:
 		return "6Q";	/* Quad-core version of the mx6 */
 	case MXC_CPU_MX6DL:
diff --git a/arch/arm/include/asm/arch-mx5/sys_proto.h b/arch/arm/include/asm/arch-mx5/sys_proto.h
index 9949ad1..c2bec45 100644
--- a/arch/arm/include/asm/arch-mx5/sys_proto.h
+++ b/arch/arm/include/asm/arch-mx5/sys_proto.h
@@ -14,6 +14,7 @@
 #define MXC_CPU_MX6DL		0x61
 #define MXC_CPU_MX6SOLO		0x62
 #define MXC_CPU_MX6Q		0x63
+#define MXC_CPU_MX6DUAL		0x64
 
 #define is_soc_rev(rev)	((get_cpu_rev() & 0xFF) - rev)
 u32 get_cpu_rev(void);
diff --git a/arch/arm/include/asm/arch-mx6/sys_proto.h b/arch/arm/include/asm/arch-mx6/sys_proto.h
index 8c21364..227998c 100644
--- a/arch/arm/include/asm/arch-mx6/sys_proto.h
+++ b/arch/arm/include/asm/arch-mx6/sys_proto.h
@@ -16,6 +16,7 @@
 #define MXC_CPU_MX6DL		0x61
 #define MXC_CPU_MX6SOLO		0x62
 #define MXC_CPU_MX6Q		0x63
+#define MXC_CPU_MX6DUAL		0x64
 
 #define is_soc_rev(rev)	((get_cpu_rev() & 0xFF) - rev)
 u32 get_cpu_rev(void);
-- 
1.7.9.5