From: Lukasz Luba <l.luba@partner.samsung.com> To: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: b.zolnierkie@samsung.com, krzk@kernel.org, kgene@kernel.org, mark.rutland@arm.com, robh+dt@kernel.org, cw00.choi@samsung.com, kyungmin.park@samsung.com, m.szyprowski@samsung.com, s.nawrocki@samsung.com, myungjoo.ham@samsung.com, willy.mh.wolff.ml@gmail.com, Lukasz Luba <l.luba@partner.samsung.com> Subject: [PATCH v2 3/3] dt-bindings: ddr: Add bindings for Samsung LPDDR3 memories Date: Mon, 16 Sep 2019 12:07:04 +0200 [thread overview] Message-ID: <20190916100704.26692-4-l.luba@partner.samsung.com> (raw) In-Reply-To: <20190916100704.26692-1-l.luba@partner.samsung.com> Add compatible for Samsung k3qf2f20db LPDDR3 memory bindings. Introduce minor fixes in the old documentation. Signed-off-by: Lukasz Luba <l.luba@partner.samsung.com> --- 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
WARNING: multiple messages have this Message-ID (diff)
From: Lukasz Luba <l.luba@partner.samsung.com> To: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: mark.rutland@arm.com, willy.mh.wolff.ml@gmail.com, b.zolnierkie@samsung.com, krzk@kernel.org, Lukasz Luba <l.luba@partner.samsung.com>, cw00.choi@samsung.com, kyungmin.park@samsung.com, robh+dt@kernel.org, kgene@kernel.org, s.nawrocki@samsung.com, myungjoo.ham@samsung.com, m.szyprowski@samsung.com Subject: [PATCH v2 3/3] dt-bindings: ddr: Add bindings for Samsung LPDDR3 memories Date: Mon, 16 Sep 2019 12:07:04 +0200 [thread overview] Message-ID: <20190916100704.26692-4-l.luba@partner.samsung.com> (raw) In-Reply-To: <20190916100704.26692-1-l.luba@partner.samsung.com> Add compatible for Samsung k3qf2f20db LPDDR3 memory bindings. Introduce minor fixes in the old documentation. Signed-off-by: Lukasz Luba <l.luba@partner.samsung.com> --- 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 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2019-09-16 10:07 UTC|newest] Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top [not found] <CGME20190916100716eucas1p213ef29ba8bd288dfc6b5f05138c9a558@eucas1p2.samsung.com> 2019-09-16 10:07 ` [PATCH v2 0/3] Exynos5 DMC minor fixes Lukasz Luba 2019-09-16 10:07 ` Lukasz Luba [not found] ` <CGME20190916100717eucas1p1b8d24c74c4d0bb385aa3455cf98c76bd@eucas1p1.samsung.com> 2019-09-16 10:07 ` [PATCH v2 1/3] memory: Exynos5422: minor fixes in DMC Lukasz Luba 2019-09-16 10:07 ` Lukasz Luba 2019-09-18 18:55 ` Krzysztof Kozlowski 2019-09-18 18:55 ` Krzysztof Kozlowski [not found] ` <CGME20190916100718eucas1p1efcbabdf9dbe17a062ae83b8c19ac256@eucas1p1.samsung.com> 2019-09-16 10:07 ` [PATCH v2 2/3] ARM: dts: exynos: fix too long line in memory device Lukasz Luba 2019-09-16 10:07 ` Lukasz Luba 2019-09-18 18:55 ` Krzysztof Kozlowski 2019-09-18 18:55 ` Krzysztof Kozlowski [not found] ` <CGME20190916100719eucas1p206fe95982b774840b5d6e62ba9c42c79@eucas1p2.samsung.com> 2019-09-16 10:07 ` Lukasz Luba [this message] 2019-09-16 10:07 ` [PATCH v2 3/3] dt-bindings: ddr: Add bindings for Samsung LPDDR3 memories Lukasz Luba 2019-09-18 18:51 ` Krzysztof Kozlowski 2019-09-18 18:51 ` Krzysztof Kozlowski 2019-09-19 6:49 ` Lukasz Luba 2019-09-19 6:49 ` Lukasz Luba 2019-09-19 7:28 ` Krzysztof Kozlowski 2019-09-19 7:28 ` Krzysztof Kozlowski 2019-09-19 7:43 ` Lukasz Luba 2019-09-19 7:43 ` Lukasz Luba
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