From: Pavel Fedin <p.fedin@samsung.com> To: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>, Mark Rutland <mark.rutland@arm.com>, Ian Campbell <ijc+devicetree@hellion.org.uk>, Kumar Gala <galak@codeaurora.org>, Kukjin Kim <kgene@kernel.org>, Krzysztof Kozlowski <k.kozlowski@samsung.com> Subject: [PATCH v4 1/4] Documentation: dt-bindings: Describe SROMc configuration Date: Thu, 29 Oct 2015 15:42:17 +0300 [thread overview] Message-ID: <f1fbd1a7877090f4318705f0fccbf4d96c0ebc9c.1446122247.git.p.fedin@samsung.com> (raw) In-Reply-To: <cover.1446122247.git.p.fedin@samsung.com> In-Reply-To: <cover.1446122247.git.p.fedin@samsung.com> Add documentation for new subnode properties, allowing bank configuration. Based on u-boot implementation, but heavily reworked. Signed-off-by: Pavel Fedin <p.fedin@samsung.com> --- .../bindings/arm/samsung/exynos-srom.txt | 50 +++++++++++++++++++++- 1 file changed, 48 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/arm/samsung/exynos-srom.txt b/Documentation/devicetree/bindings/arm/samsung/exynos-srom.txt index 33886d5..02ecc7f 100644 --- a/Documentation/devicetree/bindings/arm/samsung/exynos-srom.txt +++ b/Documentation/devicetree/bindings/arm/samsung/exynos-srom.txt @@ -5,8 +5,54 @@ Required properties: - reg: offset and length of the register set -Example: +- #address-cells, #size-cells : should be '1' if the device has sub-nodes + with 'reg' property. +- ranges: allows valid 1:1 translation between child's address space and + parent's address space + +Sub-nodes: +The SROM controller can be used to attach external peripherials. In this case +device nodes should be added as subnodes to the SROMc node. These subnodes, +except regular device specification, should contain the following properties, +describing configuration of the relevant SROM bank: + +Required properties: +- samsung,srom-bank : bank number (0 - 3) + +- samsung,srom-timing : array of 7 integers: PMC, Tacp, Tcah, Tcoh, Tacc, Tcos, + Tacs + +Optional properties: +- samsung,srom-data-width : data width in bytes (1 or 2). If omitted, default + of 1 is used. + +Example: basic definition, no banks are configured sromc@12570000 { compatible = "samsung,exynos-srom"; - reg = <0x12570000 0x10>; + reg = <0x12570000 0x14>; + }; + +Example: SROMc with smsc 911x ethernet chip on bank 3 + sromc@12570000 { + #address-cells = <1>; + #size-cells = <1>; + ranges; + + compatible = "samsung,exynos-srom"; + reg = <0x12570000 0x14>; + + ethernet@07000000 { + compatible = "smsc,lan9115"; + reg = <0x07000000 0x10000>; + phy-mode = "mii"; + interrupt-parent = <&gpx0>; + interrupts = <5 8>; + reg-io-width = <2>; + smsc,irq-push-pull; + smsc,force-internal-phy; + + samsung,srom-bank = <3>; + samsung,srom-data-width = <2>; + samsung,srom-timing = <1 9 12 1 9 1 1>; + }; }; -- 2.4.4
WARNING: multiple messages have this Message-ID (diff)
From: p.fedin@samsung.com (Pavel Fedin) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v4 1/4] Documentation: dt-bindings: Describe SROMc configuration Date: Thu, 29 Oct 2015 15:42:17 +0300 [thread overview] Message-ID: <f1fbd1a7877090f4318705f0fccbf4d96c0ebc9c.1446122247.git.p.fedin@samsung.com> (raw) In-Reply-To: <cover.1446122247.git.p.fedin@samsung.com> Add documentation for new subnode properties, allowing bank configuration. Based on u-boot implementation, but heavily reworked. Signed-off-by: Pavel Fedin <p.fedin@samsung.com> --- .../bindings/arm/samsung/exynos-srom.txt | 50 +++++++++++++++++++++- 1 file changed, 48 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/arm/samsung/exynos-srom.txt b/Documentation/devicetree/bindings/arm/samsung/exynos-srom.txt index 33886d5..02ecc7f 100644 --- a/Documentation/devicetree/bindings/arm/samsung/exynos-srom.txt +++ b/Documentation/devicetree/bindings/arm/samsung/exynos-srom.txt @@ -5,8 +5,54 @@ Required properties: - reg: offset and length of the register set -Example: +- #address-cells, #size-cells : should be '1' if the device has sub-nodes + with 'reg' property. +- ranges: allows valid 1:1 translation between child's address space and + parent's address space + +Sub-nodes: +The SROM controller can be used to attach external peripherials. In this case +device nodes should be added as subnodes to the SROMc node. These subnodes, +except regular device specification, should contain the following properties, +describing configuration of the relevant SROM bank: + +Required properties: +- samsung,srom-bank : bank number (0 - 3) + +- samsung,srom-timing : array of 7 integers: PMC, Tacp, Tcah, Tcoh, Tacc, Tcos, + Tacs + +Optional properties: +- samsung,srom-data-width : data width in bytes (1 or 2). If omitted, default + of 1 is used. + +Example: basic definition, no banks are configured sromc at 12570000 { compatible = "samsung,exynos-srom"; - reg = <0x12570000 0x10>; + reg = <0x12570000 0x14>; + }; + +Example: SROMc with smsc 911x ethernet chip on bank 3 + sromc at 12570000 { + #address-cells = <1>; + #size-cells = <1>; + ranges; + + compatible = "samsung,exynos-srom"; + reg = <0x12570000 0x14>; + + ethernet at 07000000 { + compatible = "smsc,lan9115"; + reg = <0x07000000 0x10000>; + phy-mode = "mii"; + interrupt-parent = <&gpx0>; + interrupts = <5 8>; + reg-io-width = <2>; + smsc,irq-push-pull; + smsc,force-internal-phy; + + samsung,srom-bank = <3>; + samsung,srom-data-width = <2>; + samsung,srom-timing = <1 9 12 1 9 1 1>; + }; }; -- 2.4.4
next prev parent reply other threads:[~2015-10-29 12:42 UTC|newest] Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top 2015-10-29 12:42 [PATCH v4 0/4] [PATCH v4 0/4] Exynos SROMc configuration and Ethernet support for SMDK5410 Pavel Fedin 2015-10-29 12:42 ` Pavel Fedin 2015-10-29 12:42 ` Pavel Fedin [this message] 2015-10-29 12:42 ` [PATCH v4 1/4] Documentation: dt-bindings: Describe SROMc configuration Pavel Fedin 2015-10-30 6:30 ` Krzysztof Kozlowski 2015-10-30 6:30 ` Krzysztof Kozlowski 2015-10-30 6:30 ` Krzysztof Kozlowski 2015-10-30 6:58 ` Pavel Fedin 2015-10-30 6:58 ` Pavel Fedin 2015-10-30 7:23 ` Krzysztof Kozlowski 2015-10-30 7:23 ` Krzysztof Kozlowski 2015-10-30 17:15 ` Rob Herring 2015-10-30 17:15 ` Rob Herring 2015-10-30 17:15 ` Rob Herring 2015-11-01 8:15 ` Krzysztof Kozlowski 2015-11-01 8:15 ` Krzysztof Kozlowski 2015-11-01 8:15 ` Krzysztof Kozlowski 2015-10-30 10:43 ` Pavel Fedin 2015-10-30 10:43 ` Pavel Fedin 2015-11-01 8:48 ` Krzysztof Kozlowski 2015-11-01 8:48 ` Krzysztof Kozlowski 2015-11-02 7:31 ` Pavel Fedin 2015-11-02 7:31 ` Pavel Fedin 2015-11-03 0:16 ` Krzysztof Kozlowski 2015-11-03 0:16 ` Krzysztof Kozlowski 2015-11-03 6:58 ` Pavel Fedin 2015-11-03 6:58 ` Pavel Fedin 2015-11-03 6:58 ` Pavel Fedin 2015-11-03 7:18 ` Krzysztof Kozlowski 2015-11-03 7:18 ` Krzysztof Kozlowski 2015-11-03 7:18 ` Krzysztof Kozlowski 2015-10-29 12:42 ` [PATCH v4 2/4] ARM: dts: Add SROMc to Exynos 5410 Pavel Fedin 2015-10-29 12:42 ` Pavel Fedin 2015-10-29 17:28 ` Pankaj Dubey 2015-10-29 17:28 ` Pankaj Dubey 2015-10-29 17:28 ` Pankaj Dubey 2015-10-30 6:41 ` Pavel Fedin 2015-10-30 6:41 ` Pavel Fedin 2015-10-30 9:24 ` Pankaj Dubey 2015-10-30 9:24 ` Pankaj Dubey 2015-10-30 10:51 ` Pavel Fedin 2015-10-30 10:51 ` Pavel Fedin 2015-10-29 12:42 ` [PATCH v4 3/4] drivers: exynos-srom: Add support for bank configuration Pavel Fedin 2015-10-29 12:42 ` Pavel Fedin 2015-10-29 12:42 ` [PATCH v4 4/4] ARM: dts: Add Ethernet chip to SMDK5410 Pavel Fedin 2015-10-29 12:42 ` Pavel Fedin 2015-10-29 17:40 ` Pankaj Dubey 2015-10-29 17:40 ` Pankaj Dubey 2015-10-29 17:40 ` Pankaj Dubey 2015-10-29 17:46 ` [PATCH v4 0/4] [PATCH v4 0/4] Exynos SROMc configuration and Ethernet support for SMDK5410 Pankaj Dubey 2015-10-29 17:46 ` Pankaj Dubey 2015-10-29 17:46 ` Pankaj Dubey 2015-10-30 6:43 ` Pavel Fedin 2015-10-30 6:43 ` Pavel Fedin
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