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
next prev parent reply other threads:[~2019-09-16 10:07 UTC|newest]
Thread overview: 10+ 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
[not found] ` <CGME20190916100717eucas1p1b8d24c74c4d0bb385aa3455cf98c76bd@eucas1p1.samsung.com>
2019-09-16 10:07 ` [PATCH v2 1/3] memory: Exynos5422: minor fixes in DMC Lukasz Luba
2019-09-18 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
2019-09-18 18:55 ` Krzysztof Kozlowski
[not found] ` <CGME20190916100719eucas1p206fe95982b774840b5d6e62ba9c42c79@eucas1p2.samsung.com>
2019-09-16 10:07 ` Lukasz Luba [this message]
2019-09-18 18:51 ` [PATCH v2 3/3] dt-bindings: ddr: Add bindings for Samsung LPDDR3 memories Krzysztof Kozlowski
2019-09-19 6:49 ` Lukasz Luba
2019-09-19 7:28 ` Krzysztof Kozlowski
2019-09-19 7:43 ` Lukasz Luba
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