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From: Sagar Shrikant Kadam <>
Subject: [PATCH REPOST v8 1/3] dt-bindings: i2c: extend existing opencore bindings.
Date: Sat,  1 Jun 2019 00:00:21 +0530
Message-ID: <> (raw)
In-Reply-To: <>

Reformatted compatibility strings to one valid combination on
each line.
Add FU540-C000 specific device tree bindings to already available
i2-ocores file. This device is available on
HiFive Unleashed Rev A00 board. Move interrupt under optional
property list as this can be optional.

The FU540-C000 SoC from sifive, has an Opencore's I2C block

The DT compatibility string for this IP is present in HDL and available at.

Signed-off-by: Sagar Shrikant Kadam <>
 Documentation/devicetree/bindings/i2c/i2c-ocores.txt | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/i2c/i2c-ocores.txt b/Documentation/devicetree/bindings/i2c/i2c-ocores.txt
index 17bef9a..6b25a80 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-ocores.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-ocores.txt
@@ -1,9 +1,13 @@
 Device tree configuration for i2c-ocores
 Required properties:
-- compatible      : "opencores,i2c-ocores" or "aeroflexgaisler,i2cmst"
+- compatible      : "opencores,i2c-ocores"
+                    "aeroflexgaisler,i2cmst"
+                    "sifive,fu540-c000-i2c", "sifive,i2c0"
+                    For Opencore based I2C IP block reimplemented in
+                    FU540-C000 SoC. Please refer to sifive-blocks-ip-versioning.txt
+                    for additional details.
 - reg             : bus address start and address range size of device
-- interrupts      : interrupt number
 - clocks          : handle to the controller clock; see the note below.
                     Mutually exclusive with opencores,ip-clock-frequency
 - opencores,ip-clock-frequency: frequency of the controller clock in Hz;
@@ -12,6 +16,7 @@ Required properties:
 - #size-cells     : should be <0>
 Optional properties:
+- interrupts      : interrupt number.
 - clock-frequency : frequency of bus clock in Hz; see the note below.
                     Defaults to 100 KHz when the property is not specified
 - reg-shift       : device register offsets are shifted by this value

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Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-31 18:30 [PATCH REPOST v8 0/3] Extend dt bindings to support I2C on sifive devices and a fix broken IRQ in polling mode Sagar Shrikant Kadam
2019-05-31 18:30 ` Sagar Shrikant Kadam [this message]
2019-05-31 18:30 ` [PATCH REPOST v8 2/3] i2c-ocores: sifive: add support for i2c device on FU540-c000 SoC Sagar Shrikant Kadam
2019-05-31 18:30 ` [PATCH REPOST v8 3/3] i2c-ocores: sifive: add polling mode workaround for FU540-C000 SoC Sagar Shrikant Kadam
2019-05-31 18:52   ` Andrew Lunn
2019-06-01  6:11 [PATCH REPOST v8 0/3] Extend dt bindings to support I2C on sifive devices and a fix broken IRQ in polling mode Sagar Shrikant Kadam
2019-06-01  6:11 ` [PATCH REPOST v8 1/3] dt-bindings: i2c: extend existing opencore bindings Sagar Shrikant Kadam
2019-06-11 22:49   ` Rob Herring
2019-06-14 20:58   ` Wolfram Sang

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