Ye Li 662f05fcb6 ddr: imx9: Add workaround for DDRPHY rank-to-rank errata ... 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 end of data training, we get all CDD values through the MessageBlock, then re-configure the DDRC timing of WWT/WRT/RRT/RWT with comparing MAX CDD values. Signed-off-by: Ye Li <ye.li@nxp.com> Acked-by: Peng Fan <peng.fan@nxp.com>		2023-05-21 16:54:41 +02:00
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ddr_init.c	ddr: imx9: Add workaround for DDRPHY rank-to-rank errata	2023-05-21 16:54:41 +02:00
Kconfig	ddr: imx9: enable Performance monitor counter	2022-07-26 11:29:01 +02:00
Makefile	ddr: imx: Add i.MX9 DDR controller driver	2022-07-26 11:29:01 +02:00