From: David Lechner <david@lechnology.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Sekhar Nori <nsekhar@ti.com>,
Santosh Shilimkar <ssantosh@kernel.org>
Cc: David Lechner <david@lechnology.com>,
Franklin S Cooper Jr <fcooper@ti.com>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Kevin Hilman <khilman@kernel.org>,
Axel Haslam <ahaslam@baylibre.com>,
Alexandre Bailon <abailon@baylibre.com>,
Bartosz Golaszewski <bgolaszewski@baylibre.com>,
Jiri Slaby <jslaby@suse.com>,
linux-serial@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 4/4] ARM: dts: keystone: Add "ti,da830-uart" compatible string
Date: Thu, 5 Jan 2017 12:54:20 -0600 [thread overview]
Message-ID: <1483642460-6891-5-git-send-email-david@lechnology.com> (raw)
In-Reply-To: <1483642460-6891-1-git-send-email-david@lechnology.com>
The TI Keystone SoCs have extra UART registers beyond the standard 8250
registers, so we need a new compatible string to indicate this. Also, at
least one of these registers uses the full 32 bits, so we need to specify
reg-io-width in addition to reg-shift.
"ns16550a" is left in the compatible specification since it does work as
long as the bootloader configures the SoC UART power management registers.
Signed-off-by: David Lechner <david@lechnology.com>
---
v3 changes:
* None
v2 changes:
* This is a new patch in v2
arch/arm/boot/dts/keystone-k2g.dtsi | 2 +-
arch/arm/boot/dts/keystone-k2l.dtsi | 4 ++--
arch/arm/boot/dts/keystone.dtsi | 4 ++--
3 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/arch/arm/boot/dts/keystone-k2g.dtsi b/arch/arm/boot/dts/keystone-k2g.dtsi
index 63c7cf0c..7d7b9a8 100644
--- a/arch/arm/boot/dts/keystone-k2g.dtsi
+++ b/arch/arm/boot/dts/keystone-k2g.dtsi
@@ -90,7 +90,7 @@
};
uart0: serial@02530c00 {
- compatible = "ns16550a";
+ compatible = "ti,da830-uart", "ns16550a";
current-speed = <115200>;
reg-shift = <2>;
reg-io-width = <4>;
diff --git a/arch/arm/boot/dts/keystone-k2l.dtsi b/arch/arm/boot/dts/keystone-k2l.dtsi
index 0c5e74e..e91633f 100644
--- a/arch/arm/boot/dts/keystone-k2l.dtsi
+++ b/arch/arm/boot/dts/keystone-k2l.dtsi
@@ -35,7 +35,7 @@
/include/ "keystone-k2l-clocks.dtsi"
uart2: serial@02348400 {
- compatible = "ns16550a";
+ compatible = "ti,da830-uart", "ns16550a";
current-speed = <115200>;
reg-shift = <2>;
reg-io-width = <4>;
@@ -45,7 +45,7 @@
};
uart3: serial@02348800 {
- compatible = "ns16550a";
+ compatible = "ti,da830-uart", "ns16550a";
current-speed = <115200>;
reg-shift = <2>;
reg-io-width = <4>;
diff --git a/arch/arm/boot/dts/keystone.dtsi b/arch/arm/boot/dts/keystone.dtsi
index 02708ba..9152610 100644
--- a/arch/arm/boot/dts/keystone.dtsi
+++ b/arch/arm/boot/dts/keystone.dtsi
@@ -98,7 +98,7 @@
/include/ "keystone-clocks.dtsi"
uart0: serial@02530c00 {
- compatible = "ns16550a";
+ compatible = "ti,da830-uart", "ns16550a";
current-speed = <115200>;
reg-shift = <2>;
reg-io-width = <4>;
@@ -108,7 +108,7 @@
};
uart1: serial@02531000 {
- compatible = "ns16550a";
+ compatible = "ti,da830-uart", "ns16550a";
current-speed = <115200>;
reg-shift = <2>;
reg-io-width = <4>;
--
2.7.4
next prev parent reply other threads:[~2017-01-05 18:54 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-05 18:54 [PATCH v3 0/4] TI DA8xx/OMAPL13x/AM17xx/AM18xx/66AK2x UART David Lechner
2017-01-05 18:54 ` [PATCH v3 1/4] doc: DT: Add ti,da830-uart to serial/8250 bindings David Lechner
[not found] ` <1483642460-6891-1-git-send-email-david-nq/r/kbU++upp/zk7JDF2g@public.gmane.org>
2017-01-05 18:54 ` [PATCH v3 2/4] serial: 8250: Add new port type for TI DA8xx/66AK2x David Lechner
2017-01-05 18:54 ` [PATCH v3 3/4] ARM: da850: Add ti,da830-uart compatible for serial ports David Lechner
2017-01-05 18:54 ` David Lechner [this message]
2017-01-11 8:06 ` [PATCH v3 0/4] TI DA8xx/OMAPL13x/AM17xx/AM18xx/66AK2x UART Greg Kroah-Hartman
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