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 <david@lechnology.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>

diff --git a/arch/arm/boot/dts/da850.dtsi b/arch/arm/boot/dts/da850.dtsi
index ab5adb12612f9eadc13ec0845b6f974337e5fb58..6dfd3bf3a6d8bd21c3ab0c31be63a7d96b12ba2f 100644 (file)
--- 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";