From 2ad1304aec9fdfc4a4c90862aa581b207e2665cb Mon Sep 17 00:00:00 2001 From: Peng Fan Date: Thu, 28 Apr 2016 12:55:30 +0800 Subject: MLK-12711 imx: correct speed grading info for i.MX6UL Correct speed grading info for i.MX6UL Signed-off-by: Peng Fan --- arch/arm/cpu/armv7/mx6/soc.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'arch') diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c index ee832a3..086904e 100644 --- a/arch/arm/cpu/armv7/mx6/soc.c +++ b/arch/arm/cpu/armv7/mx6/soc.c @@ -112,6 +112,12 @@ 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; @@ -124,6 +130,15 @@ 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: -- cgit v1.1