[PATCH 34/42] ddr: imx9: Add workaround for DDRPHY rank-to-rank errata

> From: Ye Li > According to DDRPHY errata, the Rank-to-Rank Spacing and tphy_rdcsgap > specification does not include the Critical Delay Difference (CDD) to > properly define the required rank-to-rank read command spacing after > executing PHY training firmware. > Following the errata workaround,

[PATCH 34/42] ddr: imx9: Add workaround for DDRPHY rank-to-rank errata

From: Ye Li According to DDRPHY errata, the Rank-to-Rank Spacing and tphy_rdcsgap specification does not include the Critical Delay Difference (CDD) to properly define the required rank-to-rank read command spacing after executing PHY training firmware. Following the errata workaround, at the en