Assign desired cs_map values for lpddr4 during set memory map.
Initial cs_map values is based on the sdram parameters, so the same will adjusted based dramtype as LPDDR4.
Signed-off-by: Jagan Teki jagan@amarulasolutions.com Signed-off-by: YouMin Chen cym@rock-chips.com --- drivers/ram/rockchip/sdram_rk3399.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/drivers/ram/rockchip/sdram_rk3399.c b/drivers/ram/rockchip/sdram_rk3399.c index 13c552649c..ecc215b9c7 100644 --- a/drivers/ram/rockchip/sdram_rk3399.c +++ b/drivers/ram/rockchip/sdram_rk3399.c @@ -189,6 +189,16 @@ static void set_memory_map(const struct chan_info *chan, u32 channel, clrsetbits_le32(&denali_pi[155], (0x3 << 16) | (0x7 << 24), ((3 - sdram_ch->cap_info.bk) << 16) | ((16 - row) << 24)); + + if (sdram_params->base.dramtype == LPDDR4) { + if (cs_map == 1) + cs_map = 0x5; + else if (cs_map == 2) + cs_map = 0xa; + else + cs_map = 0xF; + } + /* PI_41 PI_CS_MAP:RW:24:4 */ clrsetbits_le32(&denali_pi[41], 0xf << 24, cs_map << 24); if (sdram_ch->cap_info.rank == 1 && sdram_params->base.dramtype == DDR3)