imx8mp: Disables use of MR4 TUF flag (MR4[7]) bit
authorJian Li <jian.li@nxp.com>
Thu, 27 Feb 2020 01:40:10 +0000 (09:40 +0800)
committerPeng Fan <peng.fan@nxp.com>
Tue, 14 Jul 2020 07:23:46 +0000 (15:23 +0800)
In uMCTL2 Databook, for LPDDR4, it is recommended to set
this register to 1. This can avoid ddr bandwidth is lower
after booting with running for a while.

Reviewed-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Jian Li <jian.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
board/freescale/imx8mp_evk/lpddr4_timing.c

index 75d6b53..7658262 100644 (file)
@@ -11,7 +11,7 @@ struct dram_cfg_param ddr_ddrc_cfg[] = {
        { 0x3d400304, 0x1 },
        { 0x3d400030, 0x1 },
        { 0x3d400000, 0xa3080020 },
-       { 0x3d400020, 0x323 },
+       { 0x3d400020, 0x1323 },
        { 0x3d400024, 0x1e84800 },
        { 0x3d400064, 0x7a0118 },
        { 0x3d4000d0, 0xc00307a3 },