Messages in this thread | | | From | Dmitry Osipenko <> | Subject | [PATCH v2 0/4] tegra20-emc: Identify memory chip by LPDDR configuration | Date | Sun, 3 Oct 2021 03:35:05 +0300 |
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Support memory chip identification by LPDDR2 configuration, which is needed by ASUS Transformer TF101 tablet device that doesn't store RAMCODE in Tegra's NVMEM.
Changelog:
v2: - Added separate binding for standard LPDDR2 properties, like it was suggested by Krzysztof Kozlowski.
- Switched Tegra binding to use new lpddr2-configuration sub-node that contains the standard properties.
- Extended commit message of the "emc: Document new LPDDR2 sub-node" patch, telling how the properties are supposed to be used, which was requested by Krzysztof Kozlowski.
- Added new common helpers for parsing LPDDR2 properties and made tegra20-emc driver to use these helpers.
Dmitry Osipenko (4): dt-bindings: memory: Add LPDDR2 binding dt-bindings: memory: tegra20: emc: Document new LPDDR2 sub-node memory: Add LPDDR2 configuration helpers memory: tegra20-emc: Support matching timings by LPDDR2 configuration
.../memory-controllers/jedec,lpddr2.yaml | 80 ++++++++ .../nvidia,tegra20-emc.yaml | 17 +- drivers/memory/jedec_ddr.h | 21 ++ drivers/memory/jedec_ddr_data.c | 42 ++++ drivers/memory/of_memory.c | 34 ++++ drivers/memory/of_memory.h | 9 + drivers/memory/tegra/Kconfig | 1 + drivers/memory/tegra/tegra20-emc.c | 191 ++++++++++++++++-- include/dt-bindings/memory/lpddr2.h | 25 +++ 9 files changed, 404 insertions(+), 16 deletions(-) create mode 100644 Documentation/devicetree/bindings/memory-controllers/jedec,lpddr2.yaml create mode 100644 include/dt-bindings/memory/lpddr2.h
-- 2.32.0
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