Re: [3/3] ARM: da850: Add ti, da830-uart compatible for serial ports
From: Franklin S Cooper Jr <hidden>
Date: 2016-12-22 16:10:03
Also in:
linux-arm-kernel, linux-serial, lkml
On 12/20/2016 02:23 PM, David Lechner wrote:
TI DA8xx/OMAPL13x/AM17xx/AM18xx SoCs have extra UART registers beyond
Similar comment about adding Keystone SoCs to the list of SoCs.
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> --- arch/arm/boot/dts/da850.dtsi | 9 ++++++---
Similar changes should be made to the various Keystone dtsi files.
quoted hunk ↗ jump to hunk
1 file changed, 6 insertions(+), 3 deletions(-)diff --git a/arch/arm/boot/dts/da850.dtsi b/arch/arm/boot/dts/da850.dtsi index 104155d..f6cd212 100644 --- a/arch/arm/boot/dts/da850.dtsi +++ b/arch/arm/boot/dts/da850.dtsi@@ -266,22 +266,25 @@ interrupt-names = "edm3_tcerrint"; }; serial0: serial@42000 { - compatible = "ns16550a"; + compatible = "ti,da830-uart", "ns16550a"; reg = <0x42000 0x100>; + reg-io-width = <4>; reg-shift = <2>; interrupts = <25>; status = "disabled"; }; serial1: serial@10c000 { - compatible = "ns16550a"; + compatible = "ti,da830-uart", "ns16550a"; reg = <0x10c000 0x100>; + reg-io-width = <4>; reg-shift = <2>; interrupts = <53>; status = "disabled"; }; serial2: serial@10d000 { - compatible = "ns16550a"; + compatible = "ti,da830-uart", "ns16550a"; reg = <0x10d000 0x100>; + reg-io-width = <4>; reg-shift = <2>; interrupts = <61>; status = "disabled";