From 68a9345536daf199147d2ef07ec2ef0df43672ac Mon Sep 17 00:00:00 2001 From: Tudor Ambarus Date: Wed, 6 Apr 2022 16:05:05 +0300 Subject: ARM: dts: at91: sama7g5ek: Align the impedance of the QSPI0's HSIO and PCB lines The impedance of the QSPI PCB lines on the sama7g5ek is 50 Ohms. Align the output impedance of the QSPI0 HSIOs by setting a medium drive strength which corresponds to an impedance of 56 Ohms when VDD is in the 3.0V - 3.6V range. The high drive strength setting corresponds to an output impedance of 42 Ohms on the QSPI0 HSIOs. Suggested-by: Mihai Sain Signed-off-by: Tudor Ambarus Reviewed-by: Claudiu Beznea Signed-off-by: Nicolas Ferre Link: https://lore.kernel.org/r/20220406130505.422042-1-tudor.ambarus@microchip.com --- arch/arm/boot/dts/at91-sama7g5ek.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/arm/boot') diff --git a/arch/arm/boot/dts/at91-sama7g5ek.dts b/arch/arm/boot/dts/at91-sama7g5ek.dts index dd047a852390..d83f76a6cd6a 100644 --- a/arch/arm/boot/dts/at91-sama7g5ek.dts +++ b/arch/arm/boot/dts/at91-sama7g5ek.dts @@ -655,7 +655,7 @@ ; bias-disable; slew-rate = <0>; - atmel,drive-strength = ; + atmel,drive-strength = ; }; pinctrl_sdmmc0_default: sdmmc0_default { -- cgit v1.2.3