Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 3.14 19/23] ARC: [nsimosci] Change .dts to use generic 8250 UART | Date | Fri, 11 Apr 2014 09:12:08 -0700 |
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3.14-stable review patch. If anyone has any objections, please let me know.
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From: Mischa Jonker <mjonker@synopsys.com>
commit 6eda477b3c54b8236868c8784e5e042ff14244f0 upstream.
The Synopsys APB DW UART has a couple of special features that are not in the System C model. In 3.8, the 8250_dw driver didn't really use these features, but from 3.9 onwards, the 8250_dw driver has become incompatible with our model.
Signed-off-by: Mischa Jonker <mjonker@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Cc: Francois Bedard <Francois.Bedard@synopsys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- arch/arc/boot/dts/nsimosci.dts | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-)
--- a/arch/arc/boot/dts/nsimosci.dts +++ b/arch/arc/boot/dts/nsimosci.dts @@ -11,7 +11,7 @@ / { compatible = "snps,nsimosci"; - clock-frequency = <80000000>; /* 80 MHZ */ + clock-frequency = <20000000>; /* 20 MHZ */ #address-cells = <1>; #size-cells = <1>; interrupt-parent = <&intc>; @@ -44,15 +44,14 @@ }; uart0: serial@c0000000 { - compatible = "snps,dw-apb-uart"; + compatible = "ns8250"; reg = <0xc0000000 0x2000>; interrupts = <11>; - #clock-frequency = <80000000>; clock-frequency = <3686400>; baud = <115200>; reg-shift = <2>; reg-io-width = <4>; - status = "okay"; + no-loopback-test = <1>; }; pgu0: pgu@c9000000 {
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