[U-Boot] [PATCH] imx: correct speed grading info for i.MX6UL

[Peng Fan]

Correct speed grading info for i.MX6UL

Signed-off-by: Peng Fan <peng.fan at nxp.com>
Cc: Stefano Babic <sbabic at denx.de>
---
 arch/arm/cpu/armv7/mx6/soc.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c
index d4b22ad..aaa1adb 100644
--- a/arch/arm/cpu/armv7/mx6/soc.c
+++ b/arch/arm/cpu/armv7/mx6/soc.c
@@ -108,6 +108,12 @@ u32 get_cpu_rev(void)
 #define OCOTP_CFG3_SPEED_1GHZ	2
 #define OCOTP_CFG3_SPEED_1P2GHZ	3
 
+/*
+ * For i.MX6UL
+ */
+#define OCOTP_CFG3_SPEED_528MHZ 1
+#define OCOTP_CFG3_SPEED_696MHZ 2
+
 u32 get_cpu_speed_grade_hz(void)
 {
 	struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR;
@@ -120,6 +126,15 @@ u32 get_cpu_speed_grade_hz(void)
 	val >>= OCOTP_CFG3_SPEED_SHIFT;
 	val &= 0x3;
 
+	if (is_cpu_type(MXC_CPU_MX6UL)) {
+		if (val == OCOTP_CFG3_SPEED_528MHZ)
+			return 528000000;
+		else if (val == OCOTP_CFG3_SPEED_696MHZ)
+			return 69600000;
+		else
+			return 0;
+	}
+
 	switch (val) {
 	/* Valid for IMX6DQ */
 	case OCOTP_CFG3_SPEED_1P2GHZ:
-- 
2.6.2