From 3b6e9da8abc0f178a2d1f8d49909f29374a48dd8 Mon Sep 17 00:00:00 2001 From: David Lechner Date: Thu, 5 Jan 2017 12:54:19 -0600 Subject: [PATCH] ARM: dts: da850: Add ti,da830-uart compatible for serial ports TI DA8xx/OMAPL13x/AM17xx/AM18xx 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 Signed-off-by: Sekhar Nori --- arch/arm/boot/dts/da850.dtsi | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/arch/arm/boot/dts/da850.dtsi b/arch/arm/boot/dts/da850.dtsi index ab5adb12612f..6dfd3bf3a6d8 100644 --- a/arch/arm/boot/dts/da850.dtsi +++ b/arch/arm/boot/dts/da850.dtsi @@ -277,22 +277,25 @@ 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";