i.MX ProcessorsのトピックRe: ASIC revision and version

ASIC revision and version

mrlantz — Mon, 02 Dec 2013 10:28:14 GMT

I try to determine the ASIC revision and version. Normally this are well defined within the specification of the ASIC and directly accessible via the ARM CPU, but not for IMX6. According to the spec this register are called JTAG ID. So the question is which command I need to read this register and if there are another way of getting the revision and version info?

Re: ASIC revision and version

VladanJovanovic — Mon, 02 Dec 2013 11:30:06 GMT

DIGPROG register will contain the chip type info. Bits 23-16 will be:

0x60 - i.MX 6SoloLite
0x61 - i.MX 6Solo/DualLite
0x63 - I.mx 6DualQuad

Specific number of cores and silicon revision can be found from NUM_CORES and SI_REV fuses.

Re: ASIC revision and version

Yuri — Mon, 02 Dec 2013 11:41:47 GMT

Also bit field SOC_VERSION of IOMUXC_GPR4 register may be in addition used.

Re: ASIC revision and version

fabio_estevam — Mon, 02 Dec 2013 12:42:53 GMT

I guess you want to determine the mx6 silicon revision.

Please check how we do that in U-boot (earch for get_cpu_rev(void) ) function at:

http://git.denx.de/?p=u-boot.git;a=blob;f=arch/arm/cpu/armv7/mx6/soc.c;h=a3902962b5249c4ebf9ef66df991d42b69e007f8;hb=HEAD

Regards,

Fabio Estevam