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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>
This commit is contained in:
Peng Fan 2016-05-03 11:13:04 +08:00 committed by Stefano Babic
parent 291000894e
commit d15a244b05
1 changed files with 15 additions and 0 deletions
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15
arch/arm/cpu/armv7/mx6/soc.c
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@ -108,6 +108,12 @@ u32 get_cpu_rev(void)
#define OCOTP_CFG3_SPEED_1GHZ 2 #define OCOTP_CFG3_SPEED_1GHZ 2
#define OCOTP_CFG3_SPEED_1P2GHZ 3 #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) u32 get_cpu_speed_grade_hz(void)
{ {
struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR; 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 >>= OCOTP_CFG3_SPEED_SHIFT;
val &= 0x3; 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) { switch (val) {
/* Valid for IMX6DQ */ /* Valid for IMX6DQ */
case OCOTP_CFG3_SPEED_1P2GHZ: case OCOTP_CFG3_SPEED_1P2GHZ: