[U-Boot] [PATCH v4 2/2] mx6: Distinguish mx6dual from mx6quad

[Fabio Estevam <festevam@gmail.com>]

From: Fabio Estevam <fabio.estevam@freescale.com>

Currently when we boot a mx6dual U-boot reports that it is a mx6quad.

Report it as MX6D instead:

CPU:   Freescale i.MX6D rev1.2 at 792 MHz

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
Changes since v3:
- Fix From field
Changes since v2:
- use a common cpu.h header 

 arch/arm/cpu/armv7/mx6/soc.c        | 14 +++++++++++---
 arch/arm/imx-common/cpu.c           |  2 ++
 arch/arm/include/asm/arch-imx/cpu.h |  1 +
 3 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c
index 0208cba..9acd8c9 100644
--- a/arch/arm/cpu/armv7/mx6/soc.c
+++ b/arch/arm/cpu/armv7/mx6/soc.c
@@ -41,14 +41,19 @@ u32 get_cpu_rev(void)
 
 	if (type != MXC_CPU_MX6SL) {
 		reg = readl(&anatop->digprog);
+		struct scu_regs *scu = (struct scu_regs *)SCU_BASE_ADDR;
+		u32 cfg = readl(&scu->config) & 3;
 		type = ((reg >> 16) & 0xff);
 		if (type == MXC_CPU_MX6DL) {
-			struct scu_regs *scu = (struct scu_regs *)SCU_BASE_ADDR;
-			u32 cfg = readl(&scu->config) & 3;
-
 			if (!cfg)
 				type = MXC_CPU_MX6SOLO;
 		}
+
+		if (type == MXC_CPU_MX6Q) {
+			if (cfg == 1)
+				type = MXC_CPU_MX6D;
+		}
+
 	}
 	reg &= 0xff;		/* mx6 silicon revision */
 	return (type << 12) | (reg + 0x10);
@@ -62,6 +67,9 @@ u32 __weak get_board_rev(void)
 	if (type == MXC_CPU_MX6SOLO)
 		cpurev = (MXC_CPU_MX6DL) << 12 | (cpurev & 0xFFF);
 
+	if (type == MXC_CPU_MX6D)
+		cpurev = (MXC_CPU_MX6Q) << 12 | (cpurev & 0xFFF);
+
 	return cpurev;
 }
 #endif
diff --git a/arch/arm/imx-common/cpu.c b/arch/arm/imx-common/cpu.c
index 9231649..a77c4de 100644
--- a/arch/arm/imx-common/cpu.c
+++ b/arch/arm/imx-common/cpu.c
@@ -106,6 +106,8 @@ const char *get_imx_type(u32 imxtype)
 	switch (imxtype) {
 	case MXC_CPU_MX6Q:
 		return "6Q";	/* Quad-core version of the mx6 */
+	case MXC_CPU_MX6D:
+		return "6D";	/* Dual-core version of the mx6 */
 	case MXC_CPU_MX6DL:
 		return "6DL";	/* Dual Lite version of the mx6 */
 	case MXC_CPU_MX6SOLO:
diff --git a/arch/arm/include/asm/arch-imx/cpu.h b/arch/arm/include/asm/arch-imx/cpu.h
index 8c725e2..a35940e 100644
--- a/arch/arm/include/asm/arch-imx/cpu.h
+++ b/arch/arm/include/asm/arch-imx/cpu.h
@@ -10,3 +10,4 @@
 #define MXC_CPU_MX6DL		0x61
 #define MXC_CPU_MX6SOLO		0x62
 #define MXC_CPU_MX6Q		0x63
+#define MXC_CPU_MX6D		0x64
-- 
1.8.1.2