1 .. SPDX-License-Identifier: GPL-2.0+
6 AE350 is the mainline SoC produced by Andes Technology using AX25 CPU core
7 base on RISC-V architecture.
9 AE350 has integrated both AHB and APB bus and many periphals for application
10 and product development.
12 AX25-AE350 is the SoC with AE350 hardcore CPU.
14 AX25 is Andes CPU IP to adopt RISC-V architecture.
20 - 5-stage in-order execution pipeline
22 - radix-2/radix-4/radix-16/radix-256/fast
24 - Optional branch prediction
25 - Machine mode and optional user mode
26 - Optional performance monitoring
29 - RV64I base integer instructions
30 - RVC for 16-bit compressed instructions
31 - RVM for multiplication and division instructions
36 - Memory subsyetem soft-error protection
37 - Protection scheme: parity-checking or error-checking-and-correction (ECC)
38 - Automatic hardware error correction
42 - Synchronous AHB (32-bit/64-bit data-width), or
43 - Synchronous AXI4 (64-bit data-width)
46 - Wait for interrupt (WFI) mode
49 - Configurable number of breakpoints: 2/4/8
50 - External Debug Module
52 - External JTAG debug transport module
54 Platform Level Interrupt Controller (PLIC)
56 - Configurable number of interrupts: 1-1023
57 - Configurable number of interrupt priorities: 3/7/15/63/127/255
58 - Configurable number of targets: 1-16
59 - Preempted interrupt priority stack
64 CONFIG_SKIP_LOWLEVEL_INIT:
65 If you want to boot this system from SPI ROM and bypass e-bios (the
66 other boot loader on ROM). You should undefine CONFIG_SKIP_LOWLEVEL_INIT
67 in "include/configs/ax25-ae350.h".
74 1. Prepare the toolchains and make sure the $PATH to toolchains is correct.
75 2. Use `make ae350_rv[32|64]_defconfig` in u-boot root to build the image for
91 1. Define CONFIG_SKIP_LOWLEVEL_INIT to build u-boot which is loaded via gdb from ram.
92 2. Undefine CONFIG_SKIP_LOWLEVEL_INIT to build u-boot which is booted from spi rom.
93 3. Ping a server by mac driver
94 4. Scan sd card and copy u-boot image which is booted from flash to ram by sd driver.
95 5. Burn this u-boot image to spi rom by spi driver
96 6. Re-boot u-boot from spi flash with power off and power on.
98 Messages of U-Boot boot on AE350 board
99 --------------------------------------
103 U-Boot 2018.01-rc2-00033-g824f89a (Dec 21 2017 - 16:51:26 +0800)
107 SF: Detected mx25u1635e with page size 256 Bytes, erase size 4 KiB, total 2 MiB
112 Warning: mac@e0100000 (eth0) using random MAC address - be:dd:d7:e4:e8:10
116 U-Boot 2018.01-rc2-00033-gb265b91-dirty (Dec 22 2017 - 13:54:21 +0800)
118 riscv32-unknown-linux-gnu-gcc (GCC) 7.2.0
119 GNU ld (GNU Binutils) 2.29
121 RISC-V # setenv ipaddr 10.0.4.200 ;
122 RISC-V # setenv serverip 10.0.4.97 ;
123 RISC-V # ping 10.0.4.97 ;
124 Using mac@e0100000 device
125 host 10.0.4.97 is alive
128 RISC-V # fatls mmc 0:1
129 318907 u-boot-ae350-64.bin
130 1252 hello_world_ae350_32.bin
131 328787 u-boot-ae350-32.bin
135 RISC-V # sf probe 0:0 50000000 0
136 SF: Detected mx25u1635e with page size 256 Bytes, erase size 4 KiB, total 2 MiB
138 RISC-V # sf test 0x100000 0x1000
140 0 erase: 36 ticks, 111 KiB/s 0.888 Mbps
141 1 check: 29 ticks, 137 KiB/s 1.096 Mbps
142 2 write: 40 ticks, 100 KiB/s 0.800 Mbps
143 3 read: 20 ticks, 200 KiB/s 1.600 Mbps
145 0 erase: 36 ticks, 111 KiB/s 0.888 Mbps
146 1 check: 29 ticks, 137 KiB/s 1.096 Mbps
147 2 write: 40 ticks, 100 KiB/s 0.800 Mbps
148 3 read: 20 ticks, 200 KiB/s 1.600 Mbps
150 RISC-V # fatload mmc 0:1 0x600000 u-boot-ae350-32.bin
151 reading u-boot-ae350-32.bin
152 328787 bytes read in 324 ms (990.2 KiB/s)
154 RISC-V # sf erase 0x0 0x51000
155 SF: 331776 bytes @ 0x0 Erased: OK
157 RISC-V # sf write 0x600000 0x0 0x50453
158 device 0 offset 0x0, size 0x50453
159 SF: 328787 bytes @ 0x0 Written: OK
161 RISC-V # crc32 0x600000 0x50453
162 crc32 for 00600000 ... 00650452 ==> 692dc44a
164 RISC-V # crc32 0x80000000 0x50453
165 crc32 for 80000000 ... 80050452 ==> 692dc44a
168 *** power-off and power-on, this U-Boot is booted from spi flash ***
170 U-Boot 2018.01-rc2-00032-gf67dd47-dirty (Dec 21 2017 - 13:56:03 +0800)
174 SF: Detected mx25u1635e with page size 256 Bytes, erase size 4 KiB, total 2 MiB
179 Warning: mac@e0100000 (eth0) using random MAC address - ee:4c:58:29:32:f5
184 Boot bbl and riscv-linux via U-Boot on QEMU
185 -------------------------------------------
188 2. Build bbl and riscv-linux with --with-payload
190 4. Creating OS-kernel images
194 ./mkimage -A riscv -O linux -T kernel -C none -a 0x0000 -e 0x0000 -d bbl.bin bootmImage-bbl.bin
196 Created: Tue Mar 13 10:06:42 2018
197 Image Type: RISC-V Linux Kernel Image (uncompressed)
198 Data Size: 17901204 Bytes = 17481.64 KiB = 17.07 MiB
199 Load Address: 00000000
200 Entry Point: 00000000
202 5. Copy bootmImage-bbl.bin and ae350.dtb to qemu sd card image
203 6. Message of booting riscv-linux from bbl via u-boot on qemu
207 U-Boot 2018.03-rc4-00031-g2631273 (Mar 13 2018 - 15:02:55 +0800)
210 main-loop: WARNING: I/O thread spun for 1000 iterations
212 Loading Environment from SPI Flash... *** Warning - spi_flash_probe_bus_cs() failed, using default environment
219 Warning: mac@e0100000 (eth0) using random MAC address - 02:00:00:00:00:00
224 Partition Map for MMC device 0 -- Partition Type: DOS
226 Part Start Sector Num Sectors UUID Type
227 RISC-V # fatls mmc 0:0
228 17901268 bootmImage-bbl.bin
233 RISC-V # fatload mmc 0:0 0x00600000 bootmImage-bbl.bin
234 17901268 bytes read in 4642 ms (3.7 MiB/s)
235 RISC-V # fatload mmc 0:0 0x2000000 ae350.dtb
236 1954 bytes read in 1 ms (1.9 MiB/s)
237 RISC-V # setenv bootm_size 0x2000000
238 RISC-V # setenv fdt_high 0x1f00000
239 RISC-V # bootm 0x00600000 - 0x2000000
240 ## Booting kernel from Legacy Image at 00600000 ...
242 Image Type: RISC-V Linux Kernel Image (uncompressed)
243 Data Size: 17901204 Bytes = 17.1 MiB
244 Load Address: 00000000
245 Entry Point: 00000000
246 Verifying Checksum ... OK
247 ## Flattened Device Tree blob at 02000000
248 Booting using the fdt blob at 0x2000000
249 Loading Kernel Image ... OK
250 Loading Device Tree to 0000000001efc000, end 0000000001eff7a1 ... OK
251 [ 0.000000] OF: fdt: Ignoring memory range 0x0 - 0x200000
252 [ 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
253 [ 0.000000] bootconsole [early0] enabled
254 [ 0.000000] Initial ramdisk at: 0xffffffe000016a98 (12267008 bytes)
255 [ 0.000000] Zone ranges:
256 [ 0.000000] DMA [mem 0x0000000000200000-0x000000007fffffff]
257 [ 0.000000] Normal empty
258 [ 0.000000] Movable zone start for each node
259 [ 0.000000] Early memory node ranges
260 [ 0.000000] node 0: [mem 0x0000000000200000-0x000000007fffffff]
261 [ 0.000000] Initmem setup node 0 [mem 0x0000000000200000-0x000000007fffffff]
262 [ 0.000000] elf_hwcap is 0x112d
263 [ 0.000000] random: fast init done
264 [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 516615
265 [ 0.000000] Kernel command line: console=ttyS0,38400n8 earlyprintk=uart8250-32bit,0xf0300000 debug loglevel=7
266 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
267 [ 0.000000] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
268 [ 0.000000] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
269 [ 0.000000] Sorting __ex_table...
270 [ 0.000000] Memory: 2047832K/2095104K available (1856K kernel code, 204K rwdata, 532K rodata, 12076K init, 756K bss, 47272K reserved, 0K cma-reserved)
271 [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
272 [ 0.000000] NR_IRQS: 0, nr_irqs: 0, preallocated irqs: 0
273 [ 0.000000] riscv,cpu_intc,0: 64 local interrupts mapped
274 [ 0.000000] riscv,plic0,e4000000: mapped 31 interrupts to 1/2 handlers
275 [ 0.000000] clocksource: riscv_clocksource: mask: 0xffffffffffffffff max_cycles: 0x24e6a1710, max_idle_ns: 440795202120 ns
276 [ 0.000000] Calibrating delay loop (skipped), value calculated using timer frequency.. 20.00 BogoMIPS (lpj=40000)
277 [ 0.000000] pid_max: default: 32768 minimum: 301
278 [ 0.004000] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes)
279 [ 0.004000] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes)
280 [ 0.056000] devtmpfs: initialized
281 [ 0.060000] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
282 [ 0.064000] futex hash table entries: 256 (order: 0, 6144 bytes)
283 [ 0.068000] NET: Registered protocol family 16
284 [ 0.080000] vgaarb: loaded
285 [ 0.084000] clocksource: Switched to clocksource riscv_clocksource
286 [ 0.088000] NET: Registered protocol family 2
287 [ 0.092000] TCP established hash table entries: 16384 (order: 5, 131072 bytes)
288 [ 0.096000] TCP bind hash table entries: 16384 (order: 5, 131072 bytes)
289 [ 0.096000] TCP: Hash tables configured (established 16384 bind 16384)
290 [ 0.100000] UDP hash table entries: 1024 (order: 3, 32768 bytes)
291 [ 0.100000] UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes)
292 [ 0.104000] NET: Registered protocol family 1
293 [ 0.616000] Unpacking initramfs...
294 [ 1.220000] workingset: timestamp_bits=62 max_order=19 bucket_order=0
295 [ 1.244000] io scheduler noop registered
296 [ 1.244000] io scheduler cfq registered (default)
297 [ 1.244000] io scheduler mq-deadline registered
298 [ 1.248000] io scheduler kyber registered
299 [ 1.360000] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
300 [ 1.368000] console [ttyS0] disabled
301 [ 1.372000] f0300000.serial: ttyS0 at MMIO 0xf0300020 (irq = 10, base_baud = 1228800) is a 16550A
302 [ 1.392000] console [ttyS0] enabled
303 [ 1.392000] ftmac100: Loading version 0.2 ...
304 [ 1.396000] ftmac100 e0100000.mac eth0: irq 8, mapped at ffffffd002005000
305 [ 1.400000] ftmac100 e0100000.mac eth0: generated random MAC address 6e:ac:c3:92:36:c0
306 [ 1.404000] IR NEC protocol handler initialized
307 [ 1.404000] IR RC5(x/sz) protocol handler initialized
308 [ 1.404000] IR RC6 protocol handler initialized
309 [ 1.404000] IR JVC protocol handler initialized
310 [ 1.408000] IR Sony protocol handler initialized
311 [ 1.408000] IR SANYO protocol handler initialized
312 [ 1.408000] IR Sharp protocol handler initialized
313 [ 1.408000] IR MCE Keyboard/mouse protocol handler initialized
314 [ 1.412000] IR XMP protocol handler initialized
315 [ 1.456000] ftsdc010 f0e00000.mmc: mmc0 - using hw SDIO IRQ
316 [ 1.464000] bootconsole [early0] uses init memory and must be disabled even before the real one is ready
317 [ 1.464000] bootconsole [early0] disabled
318 [ 1.508000] Freeing unused kernel memory: 12076K
319 [ 1.512000] This architecture does not have kernel memory protection.
320 [ 1.520000] mmc0: new SD card at address 4567
321 [ 1.524000] mmcblk0: mmc0:4567 QEMU! 20.0 MiB
323 Wed Dec 1 10:00:00 CST 2010
329 Boot bbl and riscv-linux via U-Boot on AE350 board