[U-Boot] [PATCH v2 3/4] imx: mx6: add display of CPU temperature grade in print_cpuinfo()

[Peng Fan]

Hi Fabio,

On Fri, May 15, 2015 at 10:36:09AM -0300, Fabio Estevam wrote:
>Hi Tim,
>
>On Fri, May 15, 2015 at 10:31 AM, Tim Harvey <tharvey at gateworks.com> wrote:
>
>> Yes, that sounds like the best approach. What were your thoughts on
>> enabling the second CPU: line just to display the temperature grade if
>> CONFIG_IMX6_THERMAL was not enabled?
>>
>> I'm surprised someone on this list hasn't already tested this on IMX6SX.
>>
>> Fabio - certainly you must have a reference board with an IMX6SX and
>> could enable/test that the CPU markings agree with what is
>> detected/displayed via OTP?
>
>Yes, I do have a mx6sx sdb board, but the one I have is from the old
>silicon and I had issues event with the temperature reading, so I
>prefer not to rely on my testing.
>
>Ye Li / Peng / Nitin,
>
>Could some of you please test Tim's series on a mx6sx sdb and let us
>know what it displays on the CPU lines?
>
Tested on mx6sx sdb Revb board. I applied the following patches for this test:

mx6: add OTP bank1 registers
thermal: imx_thermal: use CPU temperature grade for trip points
imx: mx6: add display of CPU temperature grade in print_cpuinfo()
imx: mx6: add get_cpu_temp_grade to obtain cpu temperature grade from OTP
mx: mx6: display max cpu frequency in print_cpuinfo()
imx: mx6: add get_cpu_speed_grade_hz func to return MHz speed grade from OTP

The log info: "
U-Boot 2015.07-rc1-00256-gec154cc (May 18 2015 - 09:00:57)

CPU:   Freescale i.MX6SX rev1.2 996 MHz (running at 792 MHz)
CPU:    at 39C
Reset cause: POR
Board: MX6SX SABRE SDB
I2C:   ready
DRAM:  1 GiB
PMIC:  PFUZE100 ID=0x11
MMC:   FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2
In:    serial
Out:   serial
Err:   serial
Net:   FEC [PRIME]
Hit any key to stop autoboot:  0
"
>Thanks,
>
>Fabio Estevam

Regards,
Peng.

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