Re: [U-Boot] [linux-sunxi] Re: [RFC PATCH 1/4] sunxi: add DDR2 support to H3-like DRAM controller

2017-01-10 Thread Icenowy Zheng
09.01.2017, 18:01, "Maxime Ripard" : > On Fri, Jan 06, 2017 at 06:55:05AM +0800, Icenowy Zheng wrote: >>  > > +    MCTL_CR_32BIT /* fixme, thats wrong but what boot0 does */ | >>  > >>  > What's wrong about it? >> >>  V3s DRAM seems to be 16-bit. >> >>  

Re: [U-Boot] [linux-sunxi] Re: [RFC PATCH 1/4] sunxi: add DDR2 support to H3-like DRAM controller

2017-01-09 Thread Icenowy Zheng
2017年1月9日 下午6:30于 Andre Przywara 写道： > > Hi, > > On 05/01/17 22:55, Icenowy Zheng wrote: > > > > 2017年1月6日 06:37于 Maxime Ripard 写道： > >> > >> On Thu, Dec 29, 2016 at 03:00:58AM +0800, Icenowy Zheng wrote: > >>> H3-like DRAM

Re: [U-Boot] [linux-sunxi] Re: [RFC PATCH 1/4] sunxi: add DDR2 support to H3-like DRAM controller

2017-01-09 Thread Andre Przywara
Hi, On 05/01/17 22:55, Icenowy Zheng wrote: > > 2017年1月6日 06:37于 Maxime Ripard 写道： >> >> On Thu, Dec 29, 2016 at 03:00:58AM +0800, Icenowy Zheng wrote: >>> H3-like DRAM controller needs some special code to operate a DDR2 DRAM >>> chip. Add the logic to probe

Re: [U-Boot] [linux-sunxi] Re: [RFC PATCH 1/4] sunxi: add DDR2 support to H3-like DRAM controller

2017-01-09 Thread Maxime Ripard
On Fri, Jan 06, 2017 at 06:55:05AM +0800, Icenowy Zheng wrote: > > > +    MCTL_CR_32BIT /* fixme, thats wrong but what boot0 does */ | > > > > What's wrong about it? > > V3s DRAM seems to be 16-bit. > > However, boot0 has this bit set, and without this bit, it cannot work. > > According

Re: [U-Boot] [linux-sunxi] Re: [RFC PATCH 1/4] sunxi: add DDR2 support to H3-like DRAM controller

2017-01-05 Thread Icenowy Zheng
2017年1月6日 06:37于 Maxime Ripard 写道： > > On Thu, Dec 29, 2016 at 03:00:58AM +0800, Icenowy Zheng wrote: > > H3-like DRAM controller needs some special code to operate a DDR2 DRAM > > chip. Add the logic to probe such a chip. > > > > As there's no commercial