imx8mn: Update speed grade

[oweals/u-boot.git] / arch / arm / mach-imx / cpu.c

diff --git a/arch/arm/mach-imx/cpu.c b/arch/arm/mach-imx/cpu.c
index bfa85c64c6afb68c295752a1373f4ac142e73bfb..5b979cc1f58b2860f3d1f1c63beecbf93e00bfb4 100644 (file)
--- a/arch/arm/mach-imx/cpu.c
+++ b/arch/arm/mach-imx/cpu.c
@@ -314,6 +314,7 @@ enum cpu_speed {
        OCOTP_TESTER3_SPEED_GRADE1,
        OCOTP_TESTER3_SPEED_GRADE2,
        OCOTP_TESTER3_SPEED_GRADE3,
+       OCOTP_TESTER3_SPEED_GRADE4,
 };
 
 u32 get_cpu_speed_grade_hz(void)
@@ -326,17 +327,28 @@ u32 get_cpu_speed_grade_hz(void)
 
        val = readl(&fuse->tester3);
        val >>= OCOTP_TESTER3_SPEED_SHIFT;
-       val &= 0x3;
+
+       if (is_imx8mn()) {
+               val &= 0xf;
+               return 2300000000 - val * 100000000;
+       }
+
+       if (is_imx8mm())
+               val &= 0x7;
+       else
+               val &= 0x3;
 
        switch(val) {
        case OCOTP_TESTER3_SPEED_GRADE0:
                return 800000000;
        case OCOTP_TESTER3_SPEED_GRADE1:
-               return is_mx7() ? 500000000 : 1000000000;
+               return (is_mx7() ? 500000000 : (is_imx8mq() ? 1000000000 : 1200000000));
        case OCOTP_TESTER3_SPEED_GRADE2:
-               return is_mx7() ? 1000000000 : 1300000000;
+               return (is_mx7() ? 1000000000 : (is_imx8mq() ? 1300000000 : 1600000000));
        case OCOTP_TESTER3_SPEED_GRADE3:
-               return is_mx7() ? 1200000000 : 1500000000;
+               return (is_mx7() ? 1200000000 : (is_imx8mq() ? 1500000000 : 1800000000));
+       case OCOTP_TESTER3_SPEED_GRADE4:
+               return 2000000000;
        }
 
        return 0;