Introduce DDR4 bindings, which is the first DDR type to be added.
As the DDR and LPDDR use the same properties, factorise them in a
sdram-props bindings file and rename lpddr-channel into sdram-channel.
Changes in v8:
- Globally fix typo/grammar in SDRAM props bindings:
- DDR4 bindings compatible description:
- s/lpddrX,YY,ZZZZ/lpddrX-YY,ZZZZ/
- s/in lower case/lowercase/
- s/statis/static/
- s/~/-/
- Add an "s" where a plural form is used (e.g. registers) in the DDR4
binding revision-id description
- Fix the number of chars that an SPD can contain in the part number
field.
- Link to v7: https://lore.kernel.org/r/20250922-b4-ddr-bindings-v7-0-b3dd20e54db6@gmail.com
The v7 is a subset of the v6 and other prior versions, split to simplify
the review and merging process.
Changes in v7:
- None
- Link to v6: https://lore.kernel.org/all/20250909-b4-ddrperfm-upstream-v6-5-ce082cc801b5@gmail.com/
Signed-off-by: Clément Le Goffic <legoffic.clement@gmail.com>
---
Clément Le Goffic (7):
dt-bindings: memory: factorise LPDDR props into SDRAM props
dt-bindings: memory: introduce DDR4
dt-bindings: memory: factorise LPDDR channel binding into SDRAM channel
dt-binding: memory: add DDR4 channel compatible
dt-bindings: memory: SDRAM channel: standardise node name
arm64: dts: st: add LPDDR channel to stm32mp257f-dk board
arm64: dts: st: add DDR channel to stm32mp257f-ev1 board
.../memory-controllers/ddr/jedec,ddr4.yaml | 34 ++++++++
.../memory-controllers/ddr/jedec,lpddr-props.yaml | 74 -----------------
.../memory-controllers/ddr/jedec,lpddr2.yaml | 2 +-
.../memory-controllers/ddr/jedec,lpddr3.yaml | 2 +-
.../memory-controllers/ddr/jedec,lpddr4.yaml | 2 +-
.../memory-controllers/ddr/jedec,lpddr5.yaml | 2 +-
...lpddr-channel.yaml => jedec,sdram-channel.yaml} | 40 ++++++---
.../memory-controllers/ddr/jedec,sdram-props.yaml | 94 ++++++++++++++++++++++
arch/arm64/boot/dts/st/stm32mp257f-dk.dts | 7 ++
arch/arm64/boot/dts/st/stm32mp257f-ev1.dts | 7 ++
10 files changed, 173 insertions(+), 91 deletions(-)
---
base-commit: 30d4efb2f5a515a60fe6b0ca85362cbebea21e2f
change-id: 20250922-b4-ddr-bindings-7161e3e0af56
Best regards,
--
Clément Le Goffic <legoffic.clement@gmail.com>