&uart0 (LX2160ARM UART1, MMIO 0x021c0000) is the console. The remaining three (&uart1..&uart3) are available for applications at the U-Boot prompt.
Numbering note: the LX2160A has four PL011 UARTs on chip. The reference manual labels them 1 indexed (UART1..UART4); the device tree is 0 indexed (&uart0..&uart3). The mapping is constant across the family: - &uart0 LX2160ARM UART1 MMIO 0x021c0000 (console) - &uart1 LX2160ARM UART2 MMIO 0x021d0000 - &uart2 LX2160ARM UART3 MMIO 0x021e0000 - &uart3 LX2160ARM UART4 MMIO 0x021f0000 TF-A also uses &uart0 for its own boot log. U-Boot console is at 115200 8N1. Signed-off-by: Vincent Jardin <[email protected]> --- arch/arm/dts/fsl-lx2160a-nbxv3.dts | 20 ++++++++++++++++++++ configs/nbxv3_tfa_defconfig | 1 + 2 files changed, 21 insertions(+) diff --git a/arch/arm/dts/fsl-lx2160a-nbxv3.dts b/arch/arm/dts/fsl-lx2160a-nbxv3.dts index 9dcc1bf1d5e..9b79d2c3253 100644 --- a/arch/arm/dts/fsl-lx2160a-nbxv3.dts +++ b/arch/arm/dts/fsl-lx2160a-nbxv3.dts @@ -13,6 +13,26 @@ / { model = "Free Mobile Nodebox v3 CPU Module (LX2160A)"; compatible = "freemobile,nbxv3", "fsl,lx2160a"; + + aliases { + serial0 = &uart0; + }; +}; + +&uart0 { + status = "okay"; +}; + +&uart1 { + status = "okay"; +}; + +&uart2 { + status = "okay"; +}; + +&uart3 { + status = "okay"; }; /* diff --git a/configs/nbxv3_tfa_defconfig b/configs/nbxv3_tfa_defconfig index cb6043f3278..6d55a808a76 100644 --- a/configs/nbxv3_tfa_defconfig +++ b/configs/nbxv3_tfa_defconfig @@ -20,6 +20,7 @@ CONFIG_MP=y CONFIG_DYNAMIC_SYS_CLK_FREQ=y # CONFIG_EFI_LOADER is not set CONFIG_OF_BOARD_SETUP=y +CONFIG_OF_STDOUT_VIA_ALIAS=y CONFIG_SYS_PBSIZE=532 # CONFIG_ID_EEPROM is not set CONFIG_RESET_PHY_R=y -- 2.43.0
