Commit 296523d9 authored by Lukasz Luba's avatar Lukasz Luba Committed by Krzysztof Kozlowski
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dt-bindings: ddr: Add bindings for Samsung LPDDR3 memories 



Add compatible for Samsung k3qf2f20db LPDDR3 memory bindings, based on
at25.txt compatible section.  Introduce minor fixes in the old
documentation.

Suggested-by: default avatarKrzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: default avatarLukasz Luba <l.luba@partner.samsung.com>
Signed-off-by: default avatarKrzysztof Kozlowski <krzk@kernel.org>
parent 5cb4d9a0

Documentation/devicetree/bindings/ddr/lpddr3.txt

+7 −3
Original line number Diff line number Diff line 
* LPDDR3 SDRAM memories compliant to JEDEC JESD209-3C



Required properties:

- compatible : Should be  - "jedec,lpddr3"

- compatible : Should be "<vendor>,<type>", and generic value "jedec,lpddr3".

  Example "<vendor>,<type>" values:

    "samsung,K3QF2F20DB"



- 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 +46,7 @@ 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 +76,8 @@ 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>;

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