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stm32mp1: ram: add tuning in DDR interactive mode

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Add command tuning for DDR interactive mode, used during
board bring-up or with CubeMX DDR tools to execute software
tuning for the DDR configuration:
- software read DQS Gating (replace the built-in one)
- Bit de-skew
- Eye Training or DQS training

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
This commit is contained in:
Patrick Delaunay
2019-04-10 14:09:29 +02:00
committed by Patrice Chotard
parent 0d44752442
commit 187c41d783
6 changed files with 1414 additions and 1 deletions
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drivers/ram/stm32mp1/stm32mp1_ddr_regs.h
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@@ -332,6 +332,7 @@ struct stm32mp1_ddrphy {
#define DDRPHYC_DXNGCR_DXEN BIT(0)
#define DDRPHYC_DXNDLLCR_DLLSRST BIT(30)
#define DDRPHYC_DXNDLLCR_DLLDIS BIT(31)
#define DDRPHYC_DXNDLLCR_SDPHASE_MASK GENMASK(17, 14)
#define DDRPHYC_DXNDLLCR_SDPHASE_SHIFT 14