1.. SPDX-License-Identifier: GPL-2.0 2 3LS1021A-TSN Board Overview 4========================== 5 6 - 1GB DDR3 at 800 MHz 7 - Spansion/Cypress 64 MB (Rev. A) / 32 MB (Rev. B and C) QSPI NOR flash 8 - Ethernet 9 - 2 SGMII 10/100/1G Ethernet ports (Atheros AR8031) 10 - One SJA1105T switch with 4 Ethernet ports (Broadcom BCM5464R) 11 - One internal RGMII port connected to the switch 12 - SDHC 13 - microSDHC/SDXC connector 14 - Other I/O 15 - One Serial port 16 - Arduino and expansion headers 17 - mPCIE slot 18 - SATA port 19 - USB3.0 port 20 21LS1021A Memory map 22================== 23 24The addresses in brackets are physical addresses. 25 26============== ============== ============================== ======= 27Start Address End Address Description Size 28============== ============== ============================== ======= 290x00_0000_0000 0x00_000F_FFFF Secure Boot ROM 1MB 300x00_0100_0000 0x00_0FFF_FFFF CCSRBAR 240MB 310x00_1000_0000 0x00_1000_FFFF OCRAM0 64KB 320x00_1001_0000 0x00_1001_FFFF OCRAM1 64KB 330x00_2000_0000 0x00_20FF_FFFF DCSR 16MB 340x00_4000_0000 0x00_5FFF_FFFF QSPI 512MB 350x00_6000_0000 0x00_67FF_FFFF IFC - NOR Flash 128MB 360x00_8000_0000 0x00_FFFF_FFFF DRAM1 2GB 37============== ============== ============================== ======= 38 39Compiling and flashing 40====================== 41 42The LS1021A-TSN board comes along with a microSD card with OpenIL U-Boot that 43can be used to update its internal QSPI flash (which is empty out of the 44factory). 45 46To compile and flash an SD card image:: 47 48 make ls1021atsn_sdcard_defconfig && make -j 8 && sudo cp u-boot-with-spl-pbl.bin /srv/tftpboot/ 49 => tftp 0x82000000 u-boot-with-spl-pbl.bin && mmc rescan && mmc erase 8 0x1100 && mmc write 0x82000000 8 0x1100 50 51For the QSPI flash, first obtain the Reset Configuration Word binary for 52bootimg from the QSPI flash from the rcw project 53(https://source.codeaurora.org/external/qoriq/qoriq-components/rcw):: 54 55 make -j 8 && sudo cp ls1021atsn/SSR_PNS_30/rcw_1200_qspiboot.bin.swapped /srv/tftpboot/ 56 57The above RCW binary takes care of swapping the QSPI AMBA memory, so that the 58U-Boot binary does not need to be swapped when flashing it. 59 60To compile and flash a U-Boot image for QSPI:: 61 62 make ls1021atsn_qspi_defconfig && make -j 8 && sudo cp u-boot.bin /srv/tftpboot/ 63 64Then optionally create a custom uboot-env.txt file (although the default 65environment already supports distro boot) and convert it to binary format:: 66 67 mkenvimage -s 2M -o /srv/tftpboot/uboot-env.bin uboot-env.txt 68 69To program the QSPI flash with the images:: 70 71 => tftp 0x82000000 rcw_1200_qspiboot.bin.swapped && sf probe && sf erase 0x0 +${filesize} && sf write 0x82000000 0x0 ${filesize} 72 => tftp 0x82000000 u-boot.bin && sf probe && sf erase 0x100000 +${filesize} && sf write 0x82000000 0x100000 ${filesize} 73 => tftp 0x82000000 uboot-env.bin && sf probe && sf erase 0x400000 +${filesize} && sf write 0x82000000 0x400000 ${filesize} 74 75The boards contain an AT24 I2C EEPROM that is supposed to hold the MAC 76addresses of the Ethernet interfaces, however the EEPROM comes blank out of 77the factory, and the MAC addresses are printed on a label on the bottom of 78the boards. 79 80To write the MAC addresses to the EEPROM, the following needs to be done once:: 81 82 => mac id 83 => mac 0 00:1F:7B:xx:xx:xx 84 => mac 1 00:1F:7B:xx:xx:xx 85 => mac 2 00:1F:7B:xx:xx:xx 86 => mac save 87 88The switch ports do not have their own MAC address - they inherit it from the 89master enet2 port. 90 91Known issues and limitations 92============================ 93 94- The 4 SJA1105 switch ports are not functional in U-Boot for now. 95- Since the IFC pins are multiplexed with QSPI on LS1021A, currently there is 96 no way to talk to the CPLD for e.g. running the "qixis_reset" command, or 97 turning the fan on, etc. 98