Linux-RISC-V Archive on lore.kernel.org
 help / color / Atom feed
From: Sagar Shrikant Kadam <sagar.kadam@sifive.com>
To: robh+dt@kernel.org, mark.rutland@arm.com, peter@korsgaard.com,
	andrew@lunn.ch, palmer@sifive.com, paul.walmsley@sifive.com,
	sagar.kadam@sifive.com, linux-i2c@vger.kernel.org,
	devicetree@vger.kernel.org, linux-riscv@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH v7 1/3] dt-bindings: i2c: extend existing opencore bindings.
Date: Wed, 22 May 2019 14:29:32 +0530
Message-ID: <1558515574-11155-2-git-send-email-sagar.kadam@sifive.com> (raw)
In-Reply-To: <1558515574-11155-1-git-send-email-sagar.kadam@sifive.com>

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
reimplementation.

The DT compatibility string for this IP is present in HDL and available at.
https://github.com/sifive/sifive-blocks/blob/master/src/main/scala/devices/i2c/I2C.scala#L73

Signed-off-by: Sagar Shrikant Kadam <sagar.kadam@sifive.com>
---
 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..db96951 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 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
-- 
1.9.1


_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv

  reply index

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-22  8:59 [PATCH v7 0/3] Extend dt bindings to support I2C on sifive devices and a fix broken IRQ in polling mode Sagar Shrikant Kadam
2019-05-22  8:59 ` Sagar Shrikant Kadam [this message]
2019-05-24 20:40   ` [PATCH v7 1/3] dt-bindings: i2c: extend existing opencore bindings Rob Herring
2019-05-27 13:25     ` Sagar Kadam
2019-05-22  8:59 ` [PATCH v7 2/3] i2c-ocores: sifive: add support for i2c device on FU540-c000 SoC Sagar Shrikant Kadam
2019-05-22  8:59 ` [PATCH v7 3/3] i2c-ocores: sifive: add polling mode workaround for FU540-C000 SoC Sagar Shrikant Kadam
2019-05-22 19:45   ` Andrew Lunn
     [not found]     ` <CAARK3HmMVibudG2CFLBoMSAqnraXyirTL6CXYo1T_XJEuGJy7Q@mail.gmail.com>
2019-05-23 12:34       ` Andrew Lunn
2019-05-23 13:43         ` Sagar Kadam
2019-05-23 13:53           ` Wolfram Sang
2019-05-24  5:05             ` Sagar Kadam

Reply instructions:

You may reply publically to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1558515574-11155-2-git-send-email-sagar.kadam@sifive.com \
    --to=sagar.kadam@sifive.com \
    --cc=andrew@lunn.ch \
    --cc=devicetree@vger.kernel.org \
    --cc=linux-i2c@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-riscv@lists.infradead.org \
    --cc=mark.rutland@arm.com \
    --cc=palmer@sifive.com \
    --cc=paul.walmsley@sifive.com \
    --cc=peter@korsgaard.com \
    --cc=robh+dt@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Linux-RISC-V Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-riscv/0 linux-riscv/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-riscv linux-riscv/ https://lore.kernel.org/linux-riscv \
		linux-riscv@lists.infradead.org infradead-linux-riscv@archiver.kernel.org
	public-inbox-index linux-riscv


Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.infradead.lists.linux-riscv


AGPL code for this site: git clone https://public-inbox.org/ public-inbox