1 Andes Technology SoC AE250
2 ===========================
4 AE250 is the mainline SoC produced by Andes Technology using NX25 CPU core
5 base on RISC-V architecture.
7 AE250 has integrated both AHB and APB bus and many periphals for application
8 and product development.
13 NX25-AE250 is the SoC with AE250 hardcore CPU.
18 CONFIG_SKIP_LOWLEVEL_INIT:
19 If you want to boot this system from SPI ROM and bypass e-bios (the
20 other boot loader on ROM). You should undefine CONFIG_SKIP_LOWLEVEL_INIT
21 in "include/configs/nx25-ae250.h".
27 1. Prepare the toolchains and make sure the $PATH to toolchains is correct.
28 2. Use `make nx25-ae250_defconfig` in u-boot root to build the image.
45 1. Define CONFIG_SKIP_LOWLEVEL_INIT to build u-boot which is loaded via gdb from ram.
46 2. Undefine CONFIG_SKIP_LOWLEVEL_INIT to build u-boot which is booted from spi rom.
47 3. Ping a server by mac driver
48 4. Scan sd card and copy u-boot image which is booted from flash to ram by sd driver.
49 5. Burn this u-boot image to spi rom by spi driver
50 6. Re-boot u-boot from spi flash with power off and power on.
52 Messages of U-Boot boot on AE250 board
53 ======================================
54 U-Boot 2018.01-rc2-00033-g824f89a (Dec 21 2017 - 16:51:26 +0800)
58 SF: Detected mx25u1635e with page size 256 Bytes, erase size 4 KiB, total 2 MiB
63 Warning: mac@e0100000 (eth0) using random MAC address - be:dd:d7:e4:e8:10
67 U-Boot 2018.01-rc2-00033-gb265b91-dirty (Dec 22 2017 - 13:54:21 +0800)
69 riscv32-unknown-linux-gnu-gcc (GCC) 7.2.0
70 GNU ld (GNU Binutils) 2.29
72 RISC-V # setenv ipaddr 10.0.4.200 ;
73 RISC-V # setenv serverip 10.0.4.97 ;
74 RISC-V # ping 10.0.4.97 ;
75 Using mac@e0100000 device
76 host 10.0.4.97 is alive
79 RISC-V # fatls mmc 0:1
80 318907 u-boot-ae250-64.bin
81 1252 hello_world_ae250_32.bin
82 328787 u-boot-ae250-32.bin
86 RISC-V # sf probe 0:0 50000000 0
87 SF: Detected mx25u1635e with page size 256 Bytes, erase size 4 KiB, total 2 MiB
89 RISC-V # sf test 0x100000 0x1000
91 0 erase: 36 ticks, 111 KiB/s 0.888 Mbps
92 1 check: 29 ticks, 137 KiB/s 1.096 Mbps
93 2 write: 40 ticks, 100 KiB/s 0.800 Mbps
94 3 read: 20 ticks, 200 KiB/s 1.600 Mbps
96 0 erase: 36 ticks, 111 KiB/s 0.888 Mbps
97 1 check: 29 ticks, 137 KiB/s 1.096 Mbps
98 2 write: 40 ticks, 100 KiB/s 0.800 Mbps
99 3 read: 20 ticks, 200 KiB/s 1.600 Mbps
101 RISC-V # fatload mmc 0:1 0x600000 u-boot-ae250-32.bin
102 reading u-boot-ae250-32.bin
103 328787 bytes read in 324 ms (990.2 KiB/s)
105 RISC-V # sf erase 0x0 0x51000
106 SF: 331776 bytes @ 0x0 Erased: OK
108 RISC-V # sf write 0x600000 0x0 0x50453
109 device 0 offset 0x0, size 0x50453
110 SF: 328787 bytes @ 0x0 Written: OK
112 RISC-V # crc32 0x600000 0x50453
113 crc32 for 00600000 ... 00650452 ==> 692dc44a
115 RISC-V # crc32 0x80000000 0x50453
116 crc32 for 80000000 ... 80050452 ==> 692dc44a
119 *** power-off and power-on, this U-Boot is booted from spi flash ***
121 U-Boot 2018.01-rc2-00032-gf67dd47-dirty (Dec 21 2017 - 13:56:03 +0800)
125 SF: Detected mx25u1635e with page size 256 Bytes, erase size 4 KiB, total 2 MiB
130 Warning: mac@e0100000 (eth0) using random MAC address - ee:4c:58:29:32:f5
135 Boot bbl and riscv-linux via U-Boot on QEMU
136 ===========================================
138 2. Build bbl and riscv-linux with --with-payload
140 4. Creating OS-kernel images
141 ./mkimage -A riscv -O linux -T kernel -C none -a 0x0000 -e 0x0000 -d bbl.bin bootmImage-bbl.bin
143 Created: Tue Mar 13 10:06:42 2018
144 Image Type: RISC-V Linux Kernel Image (uncompressed)
145 Data Size: 17901204 Bytes = 17481.64 KiB = 17.07 MiB
146 Load Address: 00000000
147 Entry Point: 00000000
149 4. Copy bootmImage-bbl.bin and ae250.dtb to qemu sd card image
150 5. Message of booting riscv-linux from bbl via u-boot on qemu
152 U-Boot 2018.03-rc4-00031-g2631273 (Mar 13 2018 - 15:02:55 +0800)
155 main-loop: WARNING: I/O thread spun for 1000 iterations
157 Loading Environment from SPI Flash... *** Warning - spi_flash_probe_bus_cs() failed, using default environment
164 Warning: mac@e0100000 (eth0) using random MAC address - 02:00:00:00:00:00
169 Partition Map for MMC device 0 -- Partition Type: DOS
171 Part Start Sector Num Sectors UUID Type
172 RISC-V # fatls mmc 0:0
173 17901268 bootmImage-bbl.bin
178 RISC-V # fatload mmc 0:0 0x00600000 bootmImage-bbl.bin
179 17901268 bytes read in 4642 ms (3.7 MiB/s)
180 RISC-V # fatload mmc 0:0 0x2000000 ae250.dtb
181 1954 bytes read in 1 ms (1.9 MiB/s)
182 RISC-V # setenv bootm_size 0x2000000
183 RISC-V # setenv fdt_high 0x1f00000
184 RISC-V # bootm 0x00600000 - 0x2000000
185 ## Booting kernel from Legacy Image at 00600000 ...
187 Image Type: RISC-V Linux Kernel Image (uncompressed)
188 Data Size: 17901204 Bytes = 17.1 MiB
189 Load Address: 00000000
190 Entry Point: 00000000
191 Verifying Checksum ... OK
192 ## Flattened Device Tree blob at 02000000
193 Booting using the fdt blob at 0x2000000
194 Loading Kernel Image ... OK
195 Loading Device Tree to 0000000001efc000, end 0000000001eff7a1 ... OK
196 [ 0.000000] OF: fdt: Ignoring memory range 0x0 - 0x200000
197 [ 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
198 [ 0.000000] bootconsole [early0] enabled
199 [ 0.000000] Initial ramdisk at: 0xffffffe000016a98 (12267008 bytes)
200 [ 0.000000] Zone ranges:
201 [ 0.000000] DMA [mem 0x0000000000200000-0x000000007fffffff]
202 [ 0.000000] Normal empty
203 [ 0.000000] Movable zone start for each node
204 [ 0.000000] Early memory node ranges
205 [ 0.000000] node 0: [mem 0x0000000000200000-0x000000007fffffff]
206 [ 0.000000] Initmem setup node 0 [mem 0x0000000000200000-0x000000007fffffff]
207 [ 0.000000] elf_hwcap is 0x112d
208 [ 0.000000] random: fast init done
209 [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 516615
210 [ 0.000000] Kernel command line: console=ttyS0,38400n8 earlyprintk=uart8250-32bit,0xf0300000 debug loglevel=7
211 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
212 [ 0.000000] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
213 [ 0.000000] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
214 [ 0.000000] Sorting __ex_table...
215 [ 0.000000] Memory: 2047832K/2095104K available (1856K kernel code, 204K rwdata, 532K rodata, 12076K init, 756K bss, 47272K reserved, 0K cma-reserved)
216 [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
217 [ 0.000000] NR_IRQS: 0, nr_irqs: 0, preallocated irqs: 0
218 [ 0.000000] riscv,cpu_intc,0: 64 local interrupts mapped
219 [ 0.000000] riscv,plic0,e4000000: mapped 31 interrupts to 1/2 handlers
220 [ 0.000000] clocksource: riscv_clocksource: mask: 0xffffffffffffffff max_cycles: 0x24e6a1710, max_idle_ns: 440795202120 ns
221 [ 0.000000] Calibrating delay loop (skipped), value calculated using timer frequency.. 20.00 BogoMIPS (lpj=40000)
222 [ 0.000000] pid_max: default: 32768 minimum: 301
223 [ 0.004000] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes)
224 [ 0.004000] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes)
225 [ 0.056000] devtmpfs: initialized
226 [ 0.060000] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
227 [ 0.064000] futex hash table entries: 256 (order: 0, 6144 bytes)
228 [ 0.068000] NET: Registered protocol family 16
229 [ 0.080000] vgaarb: loaded
230 [ 0.084000] clocksource: Switched to clocksource riscv_clocksource
231 [ 0.088000] NET: Registered protocol family 2
232 [ 0.092000] TCP established hash table entries: 16384 (order: 5, 131072 bytes)
233 [ 0.096000] TCP bind hash table entries: 16384 (order: 5, 131072 bytes)
234 [ 0.096000] TCP: Hash tables configured (established 16384 bind 16384)
235 [ 0.100000] UDP hash table entries: 1024 (order: 3, 32768 bytes)
236 [ 0.100000] UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes)
237 [ 0.104000] NET: Registered protocol family 1
238 [ 0.616000] Unpacking initramfs...
239 [ 1.220000] workingset: timestamp_bits=62 max_order=19 bucket_order=0
240 [ 1.244000] io scheduler noop registered
241 [ 1.244000] io scheduler cfq registered (default)
242 [ 1.244000] io scheduler mq-deadline registered
243 [ 1.248000] io scheduler kyber registered
244 [ 1.360000] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
245 [ 1.368000] console [ttyS0] disabled
246 [ 1.372000] f0300000.serial: ttyS0 at MMIO 0xf0300020 (irq = 10, base_baud = 1228800) is a 16550A
247 [ 1.392000] console [ttyS0] enabled
248 [ 1.392000] ftmac100: Loading version 0.2 ...
249 [ 1.396000] ftmac100 e0100000.mac eth0: irq 8, mapped at ffffffd002005000
250 [ 1.400000] ftmac100 e0100000.mac eth0: generated random MAC address 6e:ac:c3:92:36:c0
251 [ 1.404000] IR NEC protocol handler initialized
252 [ 1.404000] IR RC5(x/sz) protocol handler initialized
253 [ 1.404000] IR RC6 protocol handler initialized
254 [ 1.404000] IR JVC protocol handler initialized
255 [ 1.408000] IR Sony protocol handler initialized
256 [ 1.408000] IR SANYO protocol handler initialized
257 [ 1.408000] IR Sharp protocol handler initialized
258 [ 1.408000] IR MCE Keyboard/mouse protocol handler initialized
259 [ 1.412000] IR XMP protocol handler initialized
260 [ 1.456000] ftsdc010 f0e00000.mmc: mmc0 - using hw SDIO IRQ
261 [ 1.464000] bootconsole [early0] uses init memory and must be disabled even before the real one is ready
262 [ 1.464000] bootconsole [early0] disabled
263 [ 1.508000] Freeing unused kernel memory: 12076K
264 [ 1.512000] This architecture does not have kernel memory protection.
265 [ 1.520000] mmc0: new SD card at address 4567
266 [ 1.524000] mmcblk0: mmc0:4567 QEMU! 20.0 MiB
268 Wed Dec 1 10:00:00 CST 2010
274 ==================================================
275 Boot bbl and riscv-linux via U-Boot on AE250 board