Add compatible for Samsung k3qf2f20db LPDDR3 memory bindings. Introduce minor fixes in the old documentation.
Signed-off-by: Lukasz Luba <[email protected]> --- Documentation/devicetree/bindings/ddr/lpddr3.txt | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/Documentation/devicetree/bindings/ddr/lpddr3.txt b/Documentation/devicetree/bindings/ddr/lpddr3.txt index 3b2485b84b3f..49afe794daaa 100644 --- a/Documentation/devicetree/bindings/ddr/lpddr3.txt +++ b/Documentation/devicetree/bindings/ddr/lpddr3.txt @@ -1,7 +1,9 @@ * LPDDR3 SDRAM memories compliant to JEDEC JESD209-3C Required properties: -- compatible : Should be - "jedec,lpddr3" +- compatible : should be one of the following: + Generic default - "jedec,lpddr3". + For Samsung 542x SoC - "samsung,K3QF2F20DB", "jedec,lpddr3". - density : <u32> representing density in Mb (Mega bits) - io-width : <u32> representing bus width. Possible values are 8, 16, 32, 64 - #address-cells: Must be set to 1 @@ -43,7 +45,7 @@ Child nodes: Example: samsung_K3QF2F20DB: lpddr3 { - compatible = "Samsung,K3QF2F20DB", "jedec,lpddr3"; + compatible = "samsung,K3QF2F20DB", "jedec,lpddr3"; density = <16384>; io-width = <32>; #address-cells = <1>; @@ -73,7 +75,8 @@ samsung_K3QF2F20DB: lpddr3 { timings_samsung_K3QF2F20DB_800mhz: lpddr3-timings@800000000 { compatible = "jedec,lpddr3-timings"; - reg = <800000000>; /* workaround: it shows max-freq */ + /* workaround: 'reg' shows max-freq */ + reg = <800000000>; min-freq = <100000000>; tRFC = <65000>; tRRD = <6000>; -- 2.17.1
