[PATCH 2/2] ARM: dts: zynq: Add linux, stdout-path and stdout-path
From: mark.rutland@arm.com (Mark Rutland)
Date: 2015-02-11 12:41:00
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linux-devicetree, lkml
On Wed, Feb 11, 2015 at 12:29:02PM +0000, Michal Simek wrote:
quoted hunk ↗ jump to hunk
parallella - Use reference instead of hardcoded path (linux,stdout-path) stdout-path is used by bootloader to identify console. Signed-off-by: Michal Simek <redacted> --- U-Boot driver model requires stdout-path. --- arch/arm/boot/dts/zynq-parallella.dts | 3 ++- arch/arm/boot/dts/zynq-zc702.dts | 2 ++ arch/arm/boot/dts/zynq-zc706.dts | 2 ++ arch/arm/boot/dts/zynq-zed.dts | 2 ++ arch/arm/boot/dts/zynq-zybo.dts | 2 ++ 5 files changed, 10 insertions(+), 1 deletion(-)diff --git a/arch/arm/boot/dts/zynq-parallella.dts b/arch/arm/boot/dts/zynq-parallella.dts index 6a5f51daa708..45228a427006 100644 --- a/arch/arm/boot/dts/zynq-parallella.dts +++ b/arch/arm/boot/dts/zynq-parallella.dts@@ -35,7 +35,8 @@ chosen { bootargs = "console=ttyPS0,115200 earlyprintk root=/dev/mmcblk0p2 rootfstype=ext4 rw rootwait"; - linux,stdout-path = "/amba/serial at e0001000"; + linux,stdout-path = &uart1; + stdout-path = &uart1;
Given that you added aliases in the last patch, you can use that to refer to the serial: stdout-path - "serial0:115200n8"; With or without the alias you can encode the UART configuration here too: stdout-path = "/amba/serial at e0001000:115200n8" Which makes the expected configuration explicit without relying on the Linux-specific bootargs. Is there any reason to keep linux,stdout-path? Thanks, Mark.