doc/README.ae350

   1 Andes Technology SoC AE350
   2 ===========================
   3
   4 AE350 is the mainline SoC produced by Andes Technology using AX25 CPU core
   5 base on RISC-V architecture.
   6
   7 AE350 has integrated both AHB and APB bus and many periphals for application
   8 and product development.
   9
  10 AX25-AE350
  11 =========
  12
  13 AX25-AE350 is the SoC with AE350 hardcore CPU.
  14
  15 Configurations
  16 ==============
  17
  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/ax25-ae350.h".
  22
  23 Build and boot steps
  24 ====================
  25
  26 build:
  27 1. Prepare the toolchains and make sure the $PATH to toolchains is correct.
  28 2. Use `make ae350_rv[32|64]_defconfig` in u-boot root to build the image for 32 or 64 bit.
  29
  30 Verification
  31 ====================
  32
  33 Target
  34 ====================
  35 1. startup
  36 2. relocation
  37 3. timer driver
  38 4. uart driver
  39 5. mac driver
  40 6. mmc driver
  41 7. spi driver
  42
  43 Steps
  44 ====================
  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.
  51
  52 Messages of U-Boot boot on AE350 board
  53 ======================================
  54 U-Boot 2018.01-rc2-00033-g824f89a (Dec 21 2017 - 16:51:26 +0800)
  55
  56 DRAM:  1 GiB
  57 MMC:   mmc@f0e00000: 0
  58 SF: Detected mx25u1635e with page size 256 Bytes, erase size 4 KiB, total 2 MiB
  59 In:    serial@f0300000
  60 Out:   serial@f0300000
  61 Err:   serial@f0300000
  62 Net:
  63 Warning: mac@e0100000 (eth0) using random MAC address - be:dd:d7:e4:e8:10
  64 eth0: mac@e0100000
  65
  66 RISC-V # version
  67 U-Boot 2018.01-rc2-00033-gb265b91-dirty (Dec 22 2017 - 13:54:21 +0800)
  68
  69 riscv32-unknown-linux-gnu-gcc (GCC) 7.2.0
  70 GNU ld (GNU Binutils) 2.29
  71
  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
  77
  78 RISC-V # mmc rescan
  79 RISC-V # fatls mmc 0:1
  80    318907   u-boot-ae350-64.bin
  81      1252   hello_world_ae350_32.bin
  82    328787   u-boot-ae350-32.bin
  83
  84 3 file(s), 0 dir(s)
  85
  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
  88
  89 RISC-V # sf test 0x100000 0x1000
  90 SPI flash test:
  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
  95 Test passed
  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
 100
 101 RISC-V # fatload mmc 0:1 0x600000 u-boot-ae350-32.bin
 102 reading u-boot-ae350-32.bin
 103 328787 bytes read in 324 ms (990.2 KiB/s)
 104
 105 RISC-V # sf erase 0x0 0x51000
 106 SF: 331776 bytes @ 0x0 Erased: OK
 107
 108 RISC-V # sf write 0x600000 0x0 0x50453
 109 device 0 offset 0x0, size 0x50453
 110 SF: 328787 bytes @ 0x0 Written: OK
 111
 112 RISC-V # crc32 0x600000 0x50453
 113 crc32 for 00600000 ... 00650452 ==> 692dc44a
 114
 115 RISC-V # crc32 0x80000000 0x50453
 116 crc32 for 80000000 ... 80050452 ==> 692dc44a
 117 RISC-V #
 118
 119 *** power-off and power-on, this U-Boot is booted from spi flash        ***
 120
 121 U-Boot 2018.01-rc2-00032-gf67dd47-dirty (Dec 21 2017 - 13:56:03 +0800)
 122
 123 DRAM:  1 GiB
 124 MMC:   mmc@f0e00000: 0
 125 SF: Detected mx25u1635e with page size 256 Bytes, erase size 4 KiB, total 2 MiB
 126 In:    serial@f0300000
 127 Out:   serial@f0300000
 128 Err:   serial@f0300000
 129 Net:
 130 Warning: mac@e0100000 (eth0) using random MAC address - ee:4c:58:29:32:f5
 131 eth0: mac@e0100000
 132 RISC-V #
 133
 134
 135 Boot bbl and riscv-linux via U-Boot on QEMU
 136 ===========================================
 137 1. Build riscv-linux
 138 2. Build bbl and riscv-linux with --with-payload
 139 3. Prepare ae350.dtb
 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
 142         Image Name:
 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
 148
 149 4. Copy bootmImage-bbl.bin and ae350.dtb to qemu sd card image
 150 5. Message of booting riscv-linux from bbl via u-boot on qemu
 151
 152 U-Boot 2018.03-rc4-00031-g2631273 (Mar 13 2018 - 15:02:55 +0800)
 153
 154 DRAM:  1 GiB
 155 main-loop: WARNING: I/O thread spun for 1000 iterations
 156 MMC:   mmc@f0e00000: 0
 157 Loading Environment from SPI Flash... *** Warning - spi_flash_probe_bus_cs() failed, using default environment
 158
 159 Failed (-22)
 160 In:    serial@f0300000
 161 Out:   serial@f0300000
 162 Err:   serial@f0300000
 163 Net:
 164 Warning: mac@e0100000 (eth0) using random MAC address - 02:00:00:00:00:00
 165 eth0: mac@e0100000
 166 RISC-V # mmc rescan
 167 RISC-V # mmc part
 168
 169 Partition Map for MMC device 0  --   Partition Type: DOS
 170
 171 Part    Start Sector    Num Sectors     UUID            Type
 172 RISC-V # fatls mmc 0:0
 173  17901268   bootmImage-bbl.bin
 174      1954   ae2xx.dtb
 175
 176 2 file(s), 0 dir(s)
 177
 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 ae350.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 ...
 186    Image Name:
 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
 267 [    1.844000]  mmcblk0:
 268 Wed Dec  1 10:00:00 CST 2010
 269 / #
 270
 271
 272
 273 TODO
 274 ==================================================
 275 Boot bbl and riscv-linux via U-Boot on AE350 board