On 2019/7/16 上午2:28, Jagan Teki wrote:
Add stride computation for the sdram which support single channel a
This configuration available in NanoPi NEO4 and the same can work with existing rk3399-sdram-ddr3-1866.dtsi
Signed-off-by: Jagan Teki jagan@amarulasolutions.com Signed-off-by: YouMin Chen cym@rock-chips.com
Reviewed-by: Kever Yang Kever.yang@rock-chips.com
Thanks, - Kever
drivers/ram/rockchip/sdram_rk3399.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/ram/rockchip/sdram_rk3399.c b/drivers/ram/rockchip/sdram_rk3399.c index c626ef602c..8bbacb5275 100644 --- a/drivers/ram/rockchip/sdram_rk3399.c +++ b/drivers/ram/rockchip/sdram_rk3399.c @@ -1211,6 +1211,10 @@ static unsigned char calculate_stride(struct rk3399_sdram_params *params) chinfo |= 1 << channel; }
- /* stride calculation for 1 channel */
- if (params->base.num_channels == 1 && chinfo & 1)
return 0x17; /* channel a */- /* stride calculation for 2 channels, default gstride type is 256B */ if (ch_cap[0] == ch_cap[1]) { cap = ch_cap[0] + ch_cap[1];