[PATCH v3 4/4] ARM: dts: keystone: Add "ti, da830-uart" compatible string
From: david@lechnology.com (David Lechner)
Date: 2017-01-05 18:55:07
Also in:
linux-devicetree, linux-serial, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
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 at 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 at 02348400 { - compatible = "ns16550a"; + compatible = "ti,da830-uart", "ns16550a"; current-speed = <115200>; reg-shift = <2>; reg-io-width = <4>;
@@ -45,7 +45,7 @@ }; uart3: serial at 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 at 02530c00 { - compatible = "ns16550a"; + compatible = "ti,da830-uart", "ns16550a"; current-speed = <115200>; reg-shift = <2>; reg-io-width = <4>;
@@ -108,7 +108,7 @@ }; uart1: serial at 02531000 { - compatible = "ns16550a"; + compatible = "ti,da830-uart", "ns16550a"; current-speed = <115200>; reg-shift = <2>; reg-io-width = <4>;
--
2.7.4