From bf99b63c59eceffd9d6e50de82a34acb9597252c Mon Sep 17 00:00:00 2001 From: Lukasz Majewski Date: Sun, 9 Jun 2019 22:54:43 +0200 Subject: [PATCH] DTS: Add imx6q-display5-u-boot.dtsi file with u-boot specific properties This file setups UART5 based serial to be used as pre-relocation console in the U-Boot proper. On purpose pinux configuration is omitted here as it has been already done in SPL. For early pre-relocation code we only need the serial device from DTS. Signed-off-by: Lukasz Majewski Reviewed-by: Peng Fan --- arch/arm/dts/imx6q-display5-u-boot.dtsi | 44 +++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 arch/arm/dts/imx6q-display5-u-boot.dtsi diff --git a/arch/arm/dts/imx6q-display5-u-boot.dtsi b/arch/arm/dts/imx6q-display5-u-boot.dtsi new file mode 100644 index 0000000000..b942218b7a --- /dev/null +++ b/arch/arm/dts/imx6q-display5-u-boot.dtsi @@ -0,0 +1,44 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2019 + * Lukasz Majewski, DENX Software Engineering, lukma@denx.de + * + * SPDX-License-Identifier: GPL-2.0+ or X11 + */ + +/* + * The minimal augmentation DTS U-Boot file to allow UART5 + * configuration in the pre-relocation stage of U-Boot + * proper. + * + * As the same UART is already configured in SPL, we don't need + * setup pinmux for it again. + */ + +/ { + aliases { + mmc0 = &usdhc4; + }; + + soc { + u-boot,dm-pre-reloc; + + aips-bus@2100000 { + u-boot,dm-pre-reloc; + }; + }; + + chosen { + stdout-path = &uart5; + }; +}; + +&i2c3 { + at24@50 { + u-boot,i2c-offset-len = <2>; + }; +}; + +&uart5 { + u-boot,dm-pre-reloc; +}; -- 2.39.5