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AN3345

Title	Title How to Change SAMA5D2 Console UART under Linux
Name	Name AN3345
Date	Date 12/20/2019
Description	Description This application note describes how to switch the SAMA5D2 debug console from UART1 (default) to UART2 in every software involved in the startup of a Linux system: RomBOOT, Bootstrap, U-Boot and Kernel.

Silicon Products

Title	Product	Title
ATSAMA5D27-WLSOM1 SAMA5D27 Wireless SOM1	ATSAMA5D27-WLSOM1	SAMA5D27 Wireless SOM1
ATSAMA5D27-SOM1 A single-sided System-On-Module (SOM) based on the high-performance 32-bit Arm® Cortex®-A5 processor-based MPU SAMA5D27 running up to 500 MHz.	ATSAMA5D27-SOM1	A single-sided System-On-Module (SOM) based on the high-performance 32-bit Arm® Cortex®-A5 processor-based MPU SAMA5D27 running up to 500 MHz.
ATSAMA5D26 ARM Cortex-A5 with DDR3(L) support	ATSAMA5D26	ARM Cortex-A5 with DDR3(L) support
ATSAMA5D27 ARM Cortex-A5 with DDR3(L) support	ATSAMA5D27	ARM Cortex-A5 with DDR3(L) support
ATSAMA5D21 AR Cortex-A5 with multiple memories such as DDR2, DDR3L, LPDDR2, LPDDR3.	ATSAMA5D21	AR Cortex-A5 with multiple memories such as DDR2, DDR3L, LPDDR2, LPDDR3.
ATSAMA5D22 AR Cortex-A5 with multiple memories such as DDR2, DDR3L, LPDDR2, LPDDR3.	ATSAMA5D22	AR Cortex-A5 with multiple memories such as DDR2, DDR3L, LPDDR2, LPDDR3.
ATSAMA5D23 A high-performance, low-power Arm Cortex-A5 CPU-based embedded microprocessor (MPU) running up to 500 MHz, with support for multiple memories such as DDR2, DDR3L, LPDDR2, LPDDR3, and QSPI and e.MMC Flash.	ATSAMA5D23	A high-performance, low-power Arm Cortex-A5 CPU-based embedded microprocessor (MPU) running up to 500 MHz, with support for multiple memories such as DDR2, DDR3L, LPDDR2, LPDDR3, and QSPI and e.MMC Flash.
ATSAMA5D225C-D1M A high-performance, low-power Arm Cortex-A5 CPU-based embedded microprocessor (MPU) running up to 500 MHz, with 128Mbit DDR2 memory.	ATSAMA5D225C-D1M	A high-performance, low-power Arm Cortex-A5 CPU-based embedded microprocessor (MPU) running up to 500 MHz, with 128Mbit DDR2 memory.
ATSAMA5D27C-D1G A high-performance, low-power Arm Cortex-A5 CPU-based embedded microprocessor (MPU) running up to 500 MHz, with 1Gbit DDR2 memory.	ATSAMA5D27C-D1G	A high-performance, low-power Arm Cortex-A5 CPU-based embedded microprocessor (MPU) running up to 500 MHz, with 1Gbit DDR2 memory.
ATSAMA5D24 A high-performance, low-power Arm Cortex-A5 CPU-based embedded microprocessor (MPU) running up to 500 MHz, with support for multiple memories such as DDR2, DDR3L, LPDDR2, LPDDR3, and QSPI and e.MMC Flash.	ATSAMA5D24	A high-performance, low-power Arm Cortex-A5 CPU-based embedded microprocessor (MPU) running up to 500 MHz, with support for multiple memories such as DDR2, DDR3L, LPDDR2, LPDDR3, and QSPI and e.MMC Flash.
ATSAMA5D28C-D1G A high-performance, low-power Arm Cortex-A5 CPU-based embedded microprocessor (MPU) running up to 500 MHz, with 1Gbit DDR2 memory.	ATSAMA5D28C-D1G	A high-performance, low-power Arm Cortex-A5 CPU-based embedded microprocessor (MPU) running up to 500 MHz, with 1Gbit DDR2 memory.
ATSAMA5D27C-LD1G A high-performance, low-power Arm Cortex-A5 CPU-based embedded microprocessor (MPU) running up to 500 MHz, with 1Gbit LPDDR2 memory.	ATSAMA5D27C-LD1G	A high-performance, low-power Arm Cortex-A5 CPU-based embedded microprocessor (MPU) running up to 500 MHz, with 1Gbit LPDDR2 memory.
ATSAMA5D27C-D5M A high-performance, low-power Arm Cortex-A5 CPU-based embedded microprocessor (MPU) running up to 500 MHz, with 512Mbit DDR2 memory.	ATSAMA5D27C-D5M	A high-performance, low-power Arm Cortex-A5 CPU-based embedded microprocessor (MPU) running up to 500 MHz, with 512Mbit DDR2 memory.
ATSAMA5D27C-LD2G A high-performance, low-power Arm Cortex-A5 CPU-based embedded microprocessor (MPU) running up to 500 MHz, with 2Gbit LPDDR2 memory.	ATSAMA5D27C-LD2G	A high-performance, low-power Arm Cortex-A5 CPU-based embedded microprocessor (MPU) running up to 500 MHz, with 2Gbit LPDDR2 memory.
ATSAMA5D28C-LD2G A high-performance, low-power Arm Cortex-A5 CPU-based embedded microprocessor (MPU) running up to 500 MHz, with 2Gbit LPDDR2 memory.	ATSAMA5D28C-LD2G	A high-performance, low-power Arm Cortex-A5 CPU-based embedded microprocessor (MPU) running up to 500 MHz, with 2Gbit LPDDR2 memory.
ATSAMA5D29 A high-performance, low-power Arm Cortex-A5 CPU-based embedded microprocessor (MPU) running up to 500 MHz, with support for multiple memories such as DDR2, DDR3L, LPDDR2, LPDDR3, and QSPI and e.MMC Flash.	ATSAMA5D29	A high-performance, low-power Arm Cortex-A5 CPU-based embedded microprocessor (MPU) running up to 500 MHz, with support for multiple memories such as DDR2, DDR3L, LPDDR2, LPDDR3, and QSPI and e.MMC Flash.
ATSAMA5D28C-LD1G A high-performance, low-power Arm Cortex-A5 CPU-based embedded microprocessor (MPU) running up to 500 MHz, with 1Gbit LPDDR2 memory.	ATSAMA5D28C-LD1G	A high-performance, low-power Arm Cortex-A5 CPU-based embedded microprocessor (MPU) running up to 500 MHz, with 1Gbit LPDDR2 memory.
ATSAMA5D28 A high-performance, low-power Arm Cortex-A5 CPU-based embedded microprocessor (MPU) running up to 500 MHz, with support for multiple memories such as DDR2, DDR3L, LPDDR2, LPDDR3, and QSPI and e.MMC Flash.	ATSAMA5D28	A high-performance, low-power Arm Cortex-A5 CPU-based embedded microprocessor (MPU) running up to 500 MHz, with support for multiple memories such as DDR2, DDR3L, LPDDR2, LPDDR3, and QSPI and e.MMC Flash.