Re: [PATCH] mmc: rockchip_dw_mmc: fix DDR52 8-bit mode handling

2023-01-31 Thread Jaehoon Chung
Hi, On 1/18/23 02:07, John Keeping wrote: > The RK3288 TRM states that, for 8-bit DDR modes: > > The CLKDIV register should always be programmed with a value > higher than zero (0); that is, a clock divider should always be > used for 8-bit DDR mode. > > In Linux, the driver

[PATCH] mmc: rockchip_dw_mmc: fix DDR52 8-bit mode handling

2023-01-17 Thread John Keeping
The RK3288 TRM states that, for 8-bit DDR modes: The CLKDIV register should always be programmed with a value higher than zero (0); that is, a clock divider should always be used for 8-bit DDR mode. In Linux, the driver applies this logic for all SoCs using the driver and