Messages in this thread | | | Subject | Re: [3/3] ARM: da850: Add ti, da830-uart compatible for serial ports | From | Franklin S Cooper Jr <> | Date | Thu, 22 Dec 2016 10:06:55 -0600 |
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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.
> 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"; >
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