lkml.org 
[lkml]   [2021]   [Oct]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH v2 0/4] tegra20-emc: Identify memory chip by LPDDR configuration
Date
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

\
 
 \ /
  Last update: 2021-10-03 02:36    [W:0.033 / U:0.088 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site