.. SPDX-License-Identifier: GPL-2.0+ LS1046ARDB ========== The LS1046A Reference Design Board (RDB) is a high-performance computing, evaluation, and development platform that supports the QorIQ LS1046A LayerScape Architecture processor. The LS1046ARDB provides SW development platform for the Freescale LS1046A processor series, with a complete debugging environment. The LS1046A RDB is lead-free and RoHS-compliant. LS1046A SoC Overview -------------------- Please refer arch/arm/cpu/armv8/fsl-layerscape/doc/README.soc for LS1046A SoC overview. LS1046ARDB board Overview ------------------------- - SERDES1 Connections, 4 lanes supporting: - Lane0: 10GBase-R with x1 RJ45 connector - Lane1: 10GBase-R Cage - Lane2: SGMII.5 - Lane3: SGMII.6 - SERDES2 Connections, 4 lanes supporting: - Lane0: PCIe1 with miniPCIe slot - Lane1: PCIe2 with PCIe x2 slot - Lane2: PCIe3 with PCIe x4 slot - Lane3: SATA - DDR Controller - 8GB 64bits DDR4 SDRAM. Support rates of up to 2133MT/s - IFC/Local Bus - One 512 MB NAND flash with ECC support - CPLD connection - USB 3.0 - one Type A port, one Micro-AB port - SDHC: connects directly to a full SD/MMC slot - DSPI: 64 MB high-speed flash Memory for boot code and storage (up to 108MHz) - 4 I2C controllers - UART - Two 4-pin serial ports at up to 115.2 Kbit/s - Two DB9 D-Type connectors supporting one Serial port each - ARM JTAG support Memory map from core's view ---------------------------- ================== ================== ================ ===== Start Address End Address Description Size ================== ================== ================ ===== ``0x00_0000_0000`` ``0x00_000F_FFFF`` Secure Boot ROM 1M ``0x00_0100_0000`` ``0x00_0FFF_FFFF`` CCSRBAR 240M ``0x00_1000_0000`` ``0x00_1000_FFFF`` OCRAM0 64K ``0x00_1001_0000`` ``0x00_1001_FFFF`` OCRAM1 64K ``0x00_2000_0000`` ``0x00_20FF_FFFF`` DCSR 16M ``0x00_7E80_0000`` ``0x00_7E80_FFFF`` IFC - NAND Flash 64K ``0x00_7FB0_0000`` ``0x00_7FB0_0FFF`` IFC - CPLD 4K ``0x00_8000_0000`` ``0x00_FFFF_FFFF`` DRAM1 2G ``0x05_0000_0000`` ``0x05_07FF_FFFF`` QMAN S/W Portal 128M ``0x05_0800_0000`` ``0x05_0FFF_FFFF`` BMAN S/W Portal 128M ``0x08_8000_0000`` ``0x09_FFFF_FFFF`` DRAM2 6G ``0x40_0000_0000`` ``0x47_FFFF_FFFF`` PCI Express1 32G ``0x48_0000_0000`` ``0x4F_FFFF_FFFF`` PCI Express2 32G ``0x50_0000_0000`` ``0x57_FFFF_FFFF`` PCI Express3 32G ================== ================== ================ ===== QSPI flash map -------------- ================== ================== ================== ===== Start Address End Address Description Size ================== ================== ================== ===== ``0x00_4000_0000`` ``0x00_400F_FFFF`` RCW + PBI 1M ``0x00_4010_0000`` ``0x00_402F_FFFF`` U-Boot 2M ``0x00_4030_0000`` ``0x00_403F_FFFF`` U-Boot Env 1M ``0x00_4040_0000`` ``0x00_405F_FFFF`` PPA 2M ``0x00_4060_0000`` ``0x00_408F_FFFF`` Secure boot header 3M + bootscript ``0x00_4090_0000`` ``0x00_4093_FFFF`` FMan ucode 256K ``0x00_4094_0000`` ``0x00_4097_FFFF`` QE/uQE firmware 256K ``0x00_4098_0000`` ``0x00_40FF_FFFF`` Reserved 6M ``0x00_4100_0000`` ``0x00_43FF_FFFF`` FIT Image 48M ================== ================== ================== ===== Booting Options --------------- NB: The reference manual documents the RCW source with the *least-significant bit first*. QSPI boot ^^^^^^^^^ This is the default. ``{ SW5[0:8], SW4[0] }`` should be ``0010_0010_0``. SD boot and eMMC boot ^^^^^^^^^^^^^^^^^^^^^ ``{ SW5[0:8], SW4[0] }`` should be ``0010_0000_0``. eMMC is selected only if there is no SD card in the slot. .. _ls1046ardb_jtag: JTAG boot ^^^^^^^^^ To recover a bricked board, or to perform initial programming, the ls1046 supports using two hard-coded Reset Configuration Words (RCWs). Unfortunately, this configuration disables most functionality, including the uarts and ethernet. However, the SD/MMC and flash controllers are still functional. To get around the lack of a serial console, we will use ARM semihosting instead. When enabled, OpenOCD will interpret certain instructions as calls to the host operating system. This allows U-Boot to use the console, read/write files, or run arbitrary commands (!). When configuring U-Boot, ensure that ``CONFIG_SEMIHOSTING``, ``CONFIG_SPL_SEMIHOSTING``, and ``CONFIG_SEMIHOSTING_SERIAL`` are enabled. ``{ SW5[0:8], SW4[0] }`` should be ``0100_1111_0``. Additionally, ``SW4[7]`` should be set to ``0``. Connect to the "console" USB connector on the front of the enclosure. Create a new file called ``u-boot.tcl`` (or whatever you choose) with the following contents:: # Load the configuration for the LS1046ARDB source [find board/nxp_rdb-ls1046a.cfg] # Initialize the scan chain init # Stop the processor halt # Enable semihosting arm semihosting enable # Load U-Boot SPL load_image spl/u-boot-spl 0 elf # Start executing SPL at the beginning of OCRAM resume 0x10000000 Then, launch openocd like:: openocd -f u-boot.tcl You should see the U-Boot SPL banner followed by the banner for U-Boot proper in the output of openocd. The CMSIS-DAP adapter is slow, so this can take a long time. If you don't see it, something has gone wrong. After a while, you should see the prompt. You can load an image using semihosting by running:: => load hostfs - $loadaddr Note that openocd's terminal is "cooked," so commands will only be sent to U-Boot when you press enter, and all commands will be echoed twice. Additionally, openocd will block when waiting for input, ignoring gdb, JTAG events, and Ctrl-Cs. To make openocd process these events, just hit enter. Using an external JTAG adapter """""""""""""""""""""""""""""" The CMSIS-DAP adapter can be rather slow. To speed up booting, use an external JTAG adapter. The following examples assume you are using a J-Link, though any adapter supported by OpenOCD will do. Ensure that ``SW4[7]`` is ``1``. Attach your jtag adapter to J22. Modify ``u-boot.tcl`` and replace the first two lines with the following:: # Load the J-Link configuration (or whatever your adapter is) source [find interface/jlink.cfg] # Use JTAG, since the J-Link also supports SWD transport select jtag # The reset pin resets the whole CPU reset_config srst_only # Load the LS1046A config source [find target/ls1046a.cfg] You can proceed as normal through the rest of the steps above. I got a speedup of around 100x by using a J-Link. Debug UART ---------- To enable the debug UART, enable the following config options:: CONFIG_DEBUG_UART_NS16550=y CONFIG_DEBUG_UART_BASE=0x21c0500 CONFIG_DEBUG_UART_CLOCK=300000000