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Andes Technology SoC AE350 |
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=========================== |
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AE350 is the mainline SoC produced by Andes Technology using AX25 CPU core |
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base on RISC-V architecture. |
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AE350 has integrated both AHB and APB bus and many periphals for application |
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and product development. |
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AX25-AE350 |
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========= |
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AX25-AE350 is the SoC with AE350 hardcore CPU. |
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Configurations ============== CONFIG_SKIP_LOWLEVEL_INIT: If you want to boot this system from SPI ROM and bypass e-bios (the other boot loader on ROM). You should undefine CONFIG_SKIP_LOWLEVEL_INIT |
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in "include/configs/ax25-ae350.h". |
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Build and boot steps ==================== build: 1. Prepare the toolchains and make sure the $PATH to toolchains is correct. |
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2. Use `make ae350_rv[32|64]_defconfig` in u-boot root to build the image for 32 or 64 bit. |
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Verification ==================== Target ==================== 1. startup 2. relocation 3. timer driver 4. uart driver 5. mac driver 6. mmc driver 7. spi driver Steps ==================== 1. Define CONFIG_SKIP_LOWLEVEL_INIT to build u-boot which is loaded via gdb from ram. 2. Undefine CONFIG_SKIP_LOWLEVEL_INIT to build u-boot which is booted from spi rom. 3. Ping a server by mac driver 4. Scan sd card and copy u-boot image which is booted from flash to ram by sd driver. 5. Burn this u-boot image to spi rom by spi driver 6. Re-boot u-boot from spi flash with power off and power on. |
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Messages of U-Boot boot on AE350 board |
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====================================== |
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U-Boot 2018.01-rc2-00033-g824f89a (Dec 21 2017 - 16:51:26 +0800) DRAM: 1 GiB MMC: mmc@f0e00000: 0 SF: Detected mx25u1635e with page size 256 Bytes, erase size 4 KiB, total 2 MiB In: serial@f0300000 Out: serial@f0300000 Err: serial@f0300000 Net: Warning: mac@e0100000 (eth0) using random MAC address - be:dd:d7:e4:e8:10 eth0: mac@e0100000 RISC-V # version U-Boot 2018.01-rc2-00033-gb265b91-dirty (Dec 22 2017 - 13:54:21 +0800) riscv32-unknown-linux-gnu-gcc (GCC) 7.2.0 GNU ld (GNU Binutils) 2.29 RISC-V # setenv ipaddr 10.0.4.200 ; RISC-V # setenv serverip 10.0.4.97 ; RISC-V # ping 10.0.4.97 ; Using mac@e0100000 device host 10.0.4.97 is alive RISC-V # mmc rescan RISC-V # fatls mmc 0:1 |
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318907 u-boot-ae350-64.bin 1252 hello_world_ae350_32.bin 328787 u-boot-ae350-32.bin |
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3 file(s), 0 dir(s) RISC-V # sf probe 0:0 50000000 0 SF: Detected mx25u1635e with page size 256 Bytes, erase size 4 KiB, total 2 MiB RISC-V # sf test 0x100000 0x1000 SPI flash test: 0 erase: 36 ticks, 111 KiB/s 0.888 Mbps 1 check: 29 ticks, 137 KiB/s 1.096 Mbps 2 write: 40 ticks, 100 KiB/s 0.800 Mbps 3 read: 20 ticks, 200 KiB/s 1.600 Mbps Test passed 0 erase: 36 ticks, 111 KiB/s 0.888 Mbps 1 check: 29 ticks, 137 KiB/s 1.096 Mbps 2 write: 40 ticks, 100 KiB/s 0.800 Mbps 3 read: 20 ticks, 200 KiB/s 1.600 Mbps |
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RISC-V # fatload mmc 0:1 0x600000 u-boot-ae350-32.bin reading u-boot-ae350-32.bin |
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328787 bytes read in 324 ms (990.2 KiB/s) RISC-V # sf erase 0x0 0x51000 SF: 331776 bytes @ 0x0 Erased: OK RISC-V # sf write 0x600000 0x0 0x50453 device 0 offset 0x0, size 0x50453 SF: 328787 bytes @ 0x0 Written: OK RISC-V # crc32 0x600000 0x50453 crc32 for 00600000 ... 00650452 ==> 692dc44a RISC-V # crc32 0x80000000 0x50453 crc32 for 80000000 ... 80050452 ==> 692dc44a RISC-V # *** power-off and power-on, this U-Boot is booted from spi flash *** U-Boot 2018.01-rc2-00032-gf67dd47-dirty (Dec 21 2017 - 13:56:03 +0800) DRAM: 1 GiB MMC: mmc@f0e00000: 0 SF: Detected mx25u1635e with page size 256 Bytes, erase size 4 KiB, total 2 MiB In: serial@f0300000 Out: serial@f0300000 Err: serial@f0300000 Net: Warning: mac@e0100000 (eth0) using random MAC address - ee:4c:58:29:32:f5 eth0: mac@e0100000 RISC-V # |
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Boot bbl and riscv-linux via U-Boot on QEMU =========================================== 1. Build riscv-linux 2. Build bbl and riscv-linux with --with-payload |
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3. Prepare ae350.dtb |
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4. Creating OS-kernel images ./mkimage -A riscv -O linux -T kernel -C none -a 0x0000 -e 0x0000 -d bbl.bin bootmImage-bbl.bin Image Name: Created: Tue Mar 13 10:06:42 2018 Image Type: RISC-V Linux Kernel Image (uncompressed) Data Size: 17901204 Bytes = 17481.64 KiB = 17.07 MiB Load Address: 00000000 Entry Point: 00000000 |
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4. Copy bootmImage-bbl.bin and ae350.dtb to qemu sd card image |
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5. Message of booting riscv-linux from bbl via u-boot on qemu U-Boot 2018.03-rc4-00031-g2631273 (Mar 13 2018 - 15:02:55 +0800) DRAM: 1 GiB main-loop: WARNING: I/O thread spun for 1000 iterations MMC: mmc@f0e00000: 0 Loading Environment from SPI Flash... *** Warning - spi_flash_probe_bus_cs() failed, using default environment Failed (-22) In: serial@f0300000 Out: serial@f0300000 Err: serial@f0300000 Net: Warning: mac@e0100000 (eth0) using random MAC address - 02:00:00:00:00:00 eth0: mac@e0100000 RISC-V # mmc rescan RISC-V # mmc part Partition Map for MMC device 0 -- Partition Type: DOS Part Start Sector Num Sectors UUID Type RISC-V # fatls mmc 0:0 17901268 bootmImage-bbl.bin 1954 ae2xx.dtb 2 file(s), 0 dir(s) RISC-V # fatload mmc 0:0 0x00600000 bootmImage-bbl.bin 17901268 bytes read in 4642 ms (3.7 MiB/s) |
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RISC-V # fatload mmc 0:0 0x2000000 ae350.dtb |
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1954 bytes read in 1 ms (1.9 MiB/s) RISC-V # setenv bootm_size 0x2000000 RISC-V # setenv fdt_high 0x1f00000 RISC-V # bootm 0x00600000 - 0x2000000 ## Booting kernel from Legacy Image at 00600000 ... Image Name: Image Type: RISC-V Linux Kernel Image (uncompressed) Data Size: 17901204 Bytes = 17.1 MiB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK ## Flattened Device Tree blob at 02000000 Booting using the fdt blob at 0x2000000 Loading Kernel Image ... OK Loading Device Tree to 0000000001efc000, end 0000000001eff7a1 ... OK [ 0.000000] OF: fdt: Ignoring memory range 0x0 - 0x200000 [ 0.000000] Linux version 4.14.0-00046-gf3e439f-dirty (rick@atcsqa06) (gcc version 7.1.1 20170509 (GCC)) #1 Tue Jan 9 16:34:25 CST 2018 [ 0.000000] bootconsole [early0] enabled [ 0.000000] Initial ramdisk at: 0xffffffe000016a98 (12267008 bytes) [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000200000-0x000000007fffffff] [ 0.000000] Normal empty [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000200000-0x000000007fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000200000-0x000000007fffffff] [ 0.000000] elf_hwcap is 0x112d [ 0.000000] random: fast init done [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 516615 [ 0.000000] Kernel command line: console=ttyS0,38400n8 earlyprintk=uart8250-32bit,0xf0300000 debug loglevel=7 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes) [ 0.000000] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes) [ 0.000000] Sorting __ex_table... [ 0.000000] Memory: 2047832K/2095104K available (1856K kernel code, 204K rwdata, 532K rodata, 12076K init, 756K bss, 47272K reserved, 0K cma-reserved) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 [ 0.000000] NR_IRQS: 0, nr_irqs: 0, preallocated irqs: 0 [ 0.000000] riscv,cpu_intc,0: 64 local interrupts mapped [ 0.000000] riscv,plic0,e4000000: mapped 31 interrupts to 1/2 handlers [ 0.000000] clocksource: riscv_clocksource: mask: 0xffffffffffffffff max_cycles: 0x24e6a1710, max_idle_ns: 440795202120 ns [ 0.000000] Calibrating delay loop (skipped), value calculated using timer frequency.. 20.00 BogoMIPS (lpj=40000) [ 0.000000] pid_max: default: 32768 minimum: 301 [ 0.004000] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes) [ 0.004000] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes) [ 0.056000] devtmpfs: initialized [ 0.060000] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns [ 0.064000] futex hash table entries: 256 (order: 0, 6144 bytes) [ 0.068000] NET: Registered protocol family 16 [ 0.080000] vgaarb: loaded [ 0.084000] clocksource: Switched to clocksource riscv_clocksource [ 0.088000] NET: Registered protocol family 2 [ 0.092000] TCP established hash table entries: 16384 (order: 5, 131072 bytes) [ 0.096000] TCP bind hash table entries: 16384 (order: 5, 131072 bytes) [ 0.096000] TCP: Hash tables configured (established 16384 bind 16384) [ 0.100000] UDP hash table entries: 1024 (order: 3, 32768 bytes) [ 0.100000] UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes) [ 0.104000] NET: Registered protocol family 1 [ 0.616000] Unpacking initramfs... [ 1.220000] workingset: timestamp_bits=62 max_order=19 bucket_order=0 [ 1.244000] io scheduler noop registered [ 1.244000] io scheduler cfq registered (default) [ 1.244000] io scheduler mq-deadline registered [ 1.248000] io scheduler kyber registered [ 1.360000] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled [ 1.368000] console [ttyS0] disabled [ 1.372000] f0300000.serial: ttyS0 at MMIO 0xf0300020 (irq = 10, base_baud = 1228800) is a 16550A [ 1.392000] console [ttyS0] enabled [ 1.392000] ftmac100: Loading version 0.2 ... [ 1.396000] ftmac100 e0100000.mac eth0: irq 8, mapped at ffffffd002005000 [ 1.400000] ftmac100 e0100000.mac eth0: generated random MAC address 6e:ac:c3:92:36:c0 [ 1.404000] IR NEC protocol handler initialized [ 1.404000] IR RC5(x/sz) protocol handler initialized [ 1.404000] IR RC6 protocol handler initialized [ 1.404000] IR JVC protocol handler initialized [ 1.408000] IR Sony protocol handler initialized [ 1.408000] IR SANYO protocol handler initialized [ 1.408000] IR Sharp protocol handler initialized [ 1.408000] IR MCE Keyboard/mouse protocol handler initialized [ 1.412000] IR XMP protocol handler initialized [ 1.456000] ftsdc010 f0e00000.mmc: mmc0 - using hw SDIO IRQ [ 1.464000] bootconsole [early0] uses init memory and must be disabled even before the real one is ready [ 1.464000] bootconsole [early0] disabled [ 1.508000] Freeing unused kernel memory: 12076K [ 1.512000] This architecture does not have kernel memory protection. [ 1.520000] mmc0: new SD card at address 4567 [ 1.524000] mmcblk0: mmc0:4567 QEMU! 20.0 MiB [ 1.844000] mmcblk0: Wed Dec 1 10:00:00 CST 2010 / # TODO ================================================== |
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Boot bbl and riscv-linux via U-Boot on AE350 board |