imx: correct speed grading info for i.MX6UL
Correct speed grading info for i.MX6UL
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
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 @@
#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 @@
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: