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(parent: 35a3f24) | patch
stm32mp1: ram: add read valid training support
authorPatrick Delaunay <patrick.delaunay@foss.st.com>
Mon, 15 Nov 2021 14:32:28 +0000 (15:32 +0100)
committerPatrice Chotard <patrice.chotard@foss.st.com>
Tue, 30 Nov 2021 15:43:28 +0000 (16:43 +0100)
commit3eee30c55d0af82d2d3bfb6ec9b3c03e08d65729
treefeec12ab6fd2e8c2d7c2997e55223fbef9363503tree | snapshot
parent35a3f24dae9b6699e137a4b35e5b6b99a2abd832commit | diff
stm32mp1: ram: add read valid training support

Add the read data eye training = training for optimal read valid placement
(RVTRN) when the built-in calibration is executed for LPDDR2 and LPDDR3.

This training is supported on the PUBL integrated in the STM32MP15x
DDR subsystem and it is not required for DDR3.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
drivers/ram/stm32mp1/stm32mp1_ddr.c diff | blob | history
drivers/ram/stm32mp1/stm32mp1_ddr_regs.h diff | blob | history
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