topic memtool in /unit_tests not work in i.MX Processors

memtool in /unit_tests not work

wallyyeh — Mon, 20 Jan 2014 19:54:14 GMT

hi,all:

I use i.MX6Q sabresd board, and trying to get HDMI eye pattern passed, so want to setting registers like this post:

https://community.freescale.com/message/314601#314601

I want to use /unit_tests/memtool to setting registers in doucument "i.MX 6 Series HDMI Test Method for Eye Pattern and Electrical Characteristics"

(download form http://www.google.com.tw/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CDkQFjAA&url=http%3A%2F%2Fcache.freescale.com%2Ff…)

but whatever I write into register 22 and 23, register 24, 25 always be 0x00 0x00 when I read. Is there any one have succeed writing registers by memtool?

Re: memtool in /unit_tests not work

Yuri — Tue, 21 Jan 2014 11:20:35 GMT

Accesses to HDMI_PHY registers are povided through I2C registers

of the HDMI module. Please look at "hdmi_tx_phy.c" of the SDK for more details

how it should be done (C-functions hdmi_phy_i2c_write, hdmi_phy_i2c_read,

hdmi_phy_i2c_write_verify).

< https://www.freescale.com/webapp/Download?colCode=i.MX6_PLATFORM_SDK&location=null >

< http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=i.MX6Q&nodeId=018rH3ZrDRB24A&fpsp=1&tab=Design_Tools_Tab >

Re: memtool in /unit_tests not work

wallyyeh — Wed, 22 Jan 2014 05:45:10 GMT

Thankyou! I will try this and post the result later.

this function also use in HDMI driver which location is kernel/driver/video/mxc_hdmi.c

Now I just open sysfs node to modified these registers in user space program.