Ravikumar Posted May 23, 2017 Share Posted May 23, 2017 Hi, I am working on H3 based Nano Pi Neo board. my task is to enable audio and kernel version is 4.4. I tested Armbian image, Audio is working fine(good) and capture working too. Enabled sun4i-codec.c (which has h3 support). I struck with major problem. I am unable to write AC registors(physical address: 1c22c00) but i can read them using readl. writel is not showing any effect on register. I enabled audio_pll, codec clock, bus codec gate registers and reset deasserted. I have cross-checked H3 datasheet for clock tree. Everything looks fine. why writel is not working?? any suggestion.?? help me. Thanks in advance. Link to comment Share on other sites More sharing options...
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