Re: [linux-sunxi] Re: [RFC PATCH] sunxi: support asymmetric dual rank DRAM on A64/R40

2020-06-23 Thread Icenowy Zheng
于 2020年6月24日 GMT+08:00 上午8:28:39, "André Przywara" 写到: >On 19/06/2020 13:16, Icenowy Zheng wrote: > >Hi Icenowy, > >> Previously we have known that R40 has a configuration register for >its >> rank 1, which allows different configuration than rank 0. Reverse >> engineering of newest libdram of

Re: [linux-sunxi] Re: [RFC PATCH] sunxi: support asymmetric dual rank DRAM on A64/R40

2020-06-23 Thread André Przywara
On 24/06/2020 01:34, Icenowy Zheng wrote: Hi, > 于 2020年6月24日 GMT+08:00 上午8:28:39, "André Przywara" > 写到: >> On 19/06/2020 13:16, Icenowy Zheng wrote: >> >> Hi Icenowy, >> >>> Previously we have known that R40 has a configuration register for >> its >>> rank 1, which allows different

[linux-sunxi] Re: [RFC PATCH] sunxi: support asymmetric dual rank DRAM on A64/R40

2020-06-23 Thread André Przywara
On 19/06/2020 13:16, Icenowy Zheng wrote: Hi Icenowy, > Previously we have known that R40 has a configuration register for its > rank 1, which allows different configuration than rank 0. Reverse > engineering of newest libdram of A64 from Allwinner shows that A64 has > this register too. It's