From: Faiz Abbas <faiz_abbas@ti.com>
To: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
linux-mmc@vger.kernel.org
Cc: nm@ti.com, ulf.hansson@linaro.org, robh+dt@kernel.org,
nsekhar@ti.com, adrian.hunter@intel.com
Subject: [PATCH 1/4] dt-bindings: mmc: sdhci-am654: Document bindings for the host controllers on TI's J721E devices.
Date: Tue, 4 Jun 2019 11:39:11 +0530 [thread overview]
Message-ID: <20190604060914.10886-2-faiz_abbas@ti.com> (raw)
In-Reply-To: <20190604060914.10886-1-faiz_abbas@ti.com>
Add binding documentation for mmc host controllers present on TI's J721E
SOC. The 4 bit IP on J721E doesn't have a phy DLL so make DLL related
properties as optional for that compatible. Also add an optional
strobe-sel property used for HS400 speed mode.
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
---
Documentation/devicetree/bindings/mmc/sdhci-am654.txt | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-am654.txt b/Documentation/devicetree/bindings/mmc/sdhci-am654.txt
index 15dbbbace27e..50e87df47971 100644
--- a/Documentation/devicetree/bindings/mmc/sdhci-am654.txt
+++ b/Documentation/devicetree/bindings/mmc/sdhci-am654.txt
@@ -8,7 +8,10 @@ Only deviations are documented here.
[3] Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
Required Properties:
- - compatible: should be "ti,am654-sdhci-5.1"
+ - compatible: should be one of:
+ "ti,am654-sdhci-5.1": SDHCI on AM654 device.
+ "ti,j721e-sdhci-8bit": 8 bit SDHCI on J721E device.
+ "ti,j721e-sdhci-4bit": 4 bit SDHCI on J721E device.
- reg: Must be two entries.
- The first should be the sdhci register space
- The second should the subsystem/phy register space
@@ -16,9 +19,13 @@ Required Properties:
- clock-names: Tuple including "clk_xin" and "clk_ahb"
- interrupts: Interrupt specifiers
- ti,otap-del-sel: Output Tap Delay select
+
+Optional Properties (Required for ti,am654-sdhci-5.1 and ti,j721e-sdhci-8bit):
- ti,trm-icp: DLL trim select
- ti,driver-strength-ohm: driver strength in ohms.
Valid values are 33, 40, 50, 66 and 100 ohms.
+Optional Properties:
+ - ti,strobe-sel: strobe select delay for HS400 speed mode. Default value: 0x0.
Example:
--
2.19.2
WARNING: multiple messages have this Message-ID (diff)
From: Faiz Abbas <faiz_abbas@ti.com>
To: <linux-arm-kernel@lists.infradead.org>,
<devicetree@vger.kernel.org>, <linux-mmc@vger.kernel.org>
Cc: nm@ti.com, ulf.hansson@linaro.org, robh+dt@kernel.org,
nsekhar@ti.com, adrian.hunter@intel.com
Subject: [PATCH 1/4] dt-bindings: mmc: sdhci-am654: Document bindings for the host controllers on TI's J721E devices.
Date: Tue, 4 Jun 2019 11:39:11 +0530 [thread overview]
Message-ID: <20190604060914.10886-2-faiz_abbas@ti.com> (raw)
In-Reply-To: <20190604060914.10886-1-faiz_abbas@ti.com>
Add binding documentation for mmc host controllers present on TI's J721E
SOC. The 4 bit IP on J721E doesn't have a phy DLL so make DLL related
properties as optional for that compatible. Also add an optional
strobe-sel property used for HS400 speed mode.
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
---
Documentation/devicetree/bindings/mmc/sdhci-am654.txt | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-am654.txt b/Documentation/devicetree/bindings/mmc/sdhci-am654.txt
index 15dbbbace27e..50e87df47971 100644
--- a/Documentation/devicetree/bindings/mmc/sdhci-am654.txt
+++ b/Documentation/devicetree/bindings/mmc/sdhci-am654.txt
@@ -8,7 +8,10 @@ Only deviations are documented here.
[3] Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
Required Properties:
- - compatible: should be "ti,am654-sdhci-5.1"
+ - compatible: should be one of:
+ "ti,am654-sdhci-5.1": SDHCI on AM654 device.
+ "ti,j721e-sdhci-8bit": 8 bit SDHCI on J721E device.
+ "ti,j721e-sdhci-4bit": 4 bit SDHCI on J721E device.
- reg: Must be two entries.
- The first should be the sdhci register space
- The second should the subsystem/phy register space
@@ -16,9 +19,13 @@ Required Properties:
- clock-names: Tuple including "clk_xin" and "clk_ahb"
- interrupts: Interrupt specifiers
- ti,otap-del-sel: Output Tap Delay select
+
+Optional Properties (Required for ti,am654-sdhci-5.1 and ti,j721e-sdhci-8bit):
- ti,trm-icp: DLL trim select
- ti,driver-strength-ohm: driver strength in ohms.
Valid values are 33, 40, 50, 66 and 100 ohms.
+Optional Properties:
+ - ti,strobe-sel: strobe select delay for HS400 speed mode. Default value: 0x0.
Example:
--
2.19.2
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next prev parent reply other threads:[~2019-06-04 6:09 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-04 6:09 [PATCH 0/4] Add Support for MMC in J721E Faiz Abbas
2019-06-04 6:09 ` Faiz Abbas
2019-06-04 6:09 ` Faiz Abbas [this message]
2019-06-04 6:09 ` [PATCH 1/4] dt-bindings: mmc: sdhci-am654: Document bindings for the host controllers on TI's J721E devices Faiz Abbas
2019-06-04 6:09 ` [PATCH 2/4] mmc: sdhci_am654: Add Support for 8 bit IP on J721E Faiz Abbas
2019-06-04 6:09 ` Faiz Abbas
2019-06-12 12:07 ` Adrian Hunter
2019-06-12 12:07 ` Adrian Hunter
2019-06-04 6:09 ` [PATCH 3/4] mmc: sdhci_am654: Add Support for 4 " Faiz Abbas
2019-06-04 6:09 ` Faiz Abbas
2019-06-12 12:09 ` Adrian Hunter
2019-06-12 12:09 ` Adrian Hunter
2019-06-04 6:09 ` [PATCH 4/4] arm64: defconfig: Add config for MMC on AM65x and J721E devices Faiz Abbas
2019-06-04 6:09 ` Faiz Abbas
2019-06-04 6:18 ` [PATCH 0/4] Add Support for MMC in J721E Sekhar Nori
2019-06-04 6:18 ` Sekhar Nori
2019-06-04 6:31 ` Faiz Abbas
2019-06-04 6:31 ` Faiz Abbas
2019-06-17 11:35 ` Ulf Hansson
2019-06-17 11:35 ` Ulf Hansson
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