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

..

altera

drivers: use devfdt_get_addr_index_ptr when cast to pointer

2023-05-06 17:28:18 +08:00

fsl

global: Finish CONFIG -> CFG migration

2023-01-20 12:27:24 -05:00

imx

ddr: imx9: Add workaround for DDRPHY rank-to-rank errata

2023-05-21 16:54:41 +02:00

marvell

ddr: marvell: a38x: Perform DDR training sequence again for 2nd boot

2023-04-13 11:34:47 +02:00

microchip

SPDX: Convert all of our single license tags to Linux Kernel style

2018-05-07 09:34:12 -04:00

Kconfig

Convert CONFIG_SPD_EEPROM to Kconfig

2022-12-05 16:08:37 -05:00