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 --- 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 5985c37f08..033b2730a6 100644 --- a/drivers/ram/rockchip/sdram_rk3399.c +++ b/drivers/ram/rockchip/sdram_rk3399.c @@ -1214,6 +1214,10 @@ static unsigned char calculate_stride(struct rk3399_sdram_params *sdram_params) chinfo |= 1 << channel; }
+ /* stride calculation for 1 channel */ + if (sdram_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];