fractalclone/zephyr-riscv

Zephyr port to riscv architecture

zephyr-riscv's Issues

Compilation Error

When i am trying to clone riscv-qemu & riscv-gnu-toolchain during the make -j my entire system get hanged . Also how to transfer spi_stim.txt file from PC to zedboard. Kindly share before ssh how to configure PC and Zedboard.

blink_led for zedboard

Hello,

The README states that the blink_led programs is for the arduino board. Make BOARD=zedboard_pulpino gives errors. Is it possible to run the blink led tests for the zedboard ?

Thank you !

Macro SYS_CLOCK_HW_CYCLES_TO_NS broken

Calling the macro SYS_CLOCK_HW_CYCLES_TO_NS() defined in include/sys_clock.h breaks the build for me.
Can't even see the Zephyr booting message anymore.
Platform is a SiFive Arty FE310 development board.

I assume that casting to u64_t in SYS_CLOCK_HW_CYCLES_TO_NS64() isn't a good idea on RISCV32.

Version of Zephyr OS: 1.8.99
Version of Zephyr SDK: 0.9.1

ERROR: glib-2.22 gthread-2.0 is required to compile QEMU

Hello,

The configure gives the following error.

alpha@alpha-VirtualBox:~/zephyr/riscv-gnu-toolchain/riscv-qemu$ ./configure --target-list=riscv64-softmmu,riscv32-softmmu --prefix=/opt/riscv

ERROR: glib-2.22 gthread-2.0 is required to compile QEMU

I have build-essential, libc6-dev and when I install apt-get install libglib2.0-dev zlib1g-dev, I get the broken packages error.
Could you please tell me what I'm missing ?

Thank you

hifive1: Exception cause Load address misaligned

I am trying to get the samples/net/dhcpv4_client/ working on hifive1 board, using the branch provided by @palmer-dabbelt .

I use the following for the prj_hifive1.conf file (copied from arduino 101 disabled a few things for debugging):

CONFIG_NETWORKING=y
CONFIG_NET_IPV6=n
CONFIG_NET_IPV4=y
CONFIG_NET_ARP=y
CONFIG_NET_UDP=y
CONFIG_NET_DHCPV4=y
CONFIG_NET_BUF=y
CONFIG_NET_NBUF_RX_COUNT=4
CONFIG_NET_NBUF_TX_COUNT=4
CONFIG_NET_NBUF_RX_DATA_COUNT=5
CONFIG_NET_NBUF_TX_DATA_COUNT=5
CONFIG_TEST_RANDOM_GENERATOR=y
CONFIG_NET_IF_UNICAST_IPV4_ADDR_COUNT=1

CONFIG_NET_LOG=y
CONFIG_SYS_LOG=y
CONFIG_SYS_LOG_SHOW_COLOR=y
CONFIG_NET_DEBUG_CORE=y
CONFIG_NET_DEBUG_IF=y
CONFIG_NET_DEBUG_DHCPV4=y
CONFIG_NET_DEBUG_ARP=y
CONFIG_NET_DEBUG_L2_ETHERNET=y
CONFIG_NET_DEBUG_IPV4=y
CONFIG_NET_DEBUG_ICMPV4=y
CONFIG_NET_DEBUG_UDP=y
CONFIG_NET_RX_STACK_SIZE=2048

CONFIG_NET_L2_ETHERNET=y

CONFIG_SPI=y
CONFIG_SPI_CS_GPIO=y
CONFIG_SPI_1_CS_GPIO_PORT="GPIO_0"
CONFIG_SPI_1_CS_GPIO_PIN=0

CONFIG_SYS_LOG_ETHERNET_LEVEL=1
CONFIG_ETH_ENC28J60=n
CONFIG_ETH_ENC28J60_0=n
CONFIG_ETH_ENC28J60_0_SPI_PORT_NAME="SPI_1"
CONFIG_ETH_ENC28J60_0_SPI_BUS_FREQ=2
CONFIG_ETH_ENC28J60_0_MAC3=0x0a
CONFIG_ETH_ENC28J60_0_MAC4=0x0b
CONFIG_ETH_ENC28J60_0_MAC5=0x0c

CONFIG_NET_MGMT=y
CONFIG_NET_MGMT_EVENT=y

Compiling the code with the current zephyr SDK and uploading it onto the board
using the freedom-e-sdk works fine.

However, when opening ttyUSB1 with screen I get the following error:

***** BOOTING ZEPHYR OS v1.7.99 *****
[dhcpv4] [INF] main: In main
[dhcpv4] [INF] main_thread: Run dhcpv4 client
Exception cause Load address misaligned (4)
Current thread ID = 0x80003070
Faulting instruction address = 0x20404e18
  ra: 0x2040520c  gp: 0x67e09182  tp: 0x20400260  t0: 0x1800
  t1: 0x20400780  t2: 0x0  t3: 0x2547316e  t4: 0x20408468
  t5: 0x9d040577  t6: 0x177fe4b9  a0: 0x80000144  a1: 0x1
  a2: 0x0  a3: 0x80003414  a4: 0x0  a5: 0x3b9aca0d
  a6: 0x8120d47e  a7: 0x67e09182
Fatal fault in thread! Aborting.

Disassembling the code shows:

20404e0c <prepare_message>:
20404e0c:       00852783                lw      a5,8(a0)
20404e10:       fd010113                addi    sp,sp,-48
20404e14:       02112623                sw      ra,44(sp)
20404e18:       0087a783                lw      a5,8(a5)
20404e1c:       02812423                sw      s0,40(sp)
20404e20:       02912223                sw      s1,36(sp)
20404e24:       03212023                sw      s2,32(sp)
20404e28:       01312e23                sw      s3,28(sp)
20404e2c:       01412c23                sw      s4,24(sp)
20404e30:       01512a23                sw      s5,20(sp)
20404e34:       00058a93                mv      s5,a1
20404e38:       00000593                li      a1,0
20404e3c:       00060a13                mv      s4,a2
20404e40:       00050913                mv      s2,a0
20404e44:       000780e7                jalr    a5
20404e48:       fff00593                li      a1,-1
20404e4c:       bd9fd0ef                jal     20402a24 <net_nbuf_get_reserve_tx>

The function prepare_message is in subsys/net/ip/dhcpv4.c

I found an old and closed bug in JIRA, just linking it here for reference as it sounded similiar:
https://jira.zephyrproject.org/browse/ZEP-955

Not sure how to proceed at this point. Appreciate any hints / advice.

Zephyr port to riscv64 architecture

Any plans to do that?
What is the effort here?
Do you have any guidelines?

Thanks
Noam

Rtos port to risc-v

Hello,

I'm trying to port another rtos to risc-v and I'm following your instructions by porting Zephyr to see if this can be done in a similar fashion.

Is it possible to push another small rtos (other than zephyr, similarly) with rocket cores to a zedboard by using Vivado to generate another boot.bin ? Will I only need the .elf file of my rtos or does it require other files ?

Could you please tell me what sort of files I can work with similarly and what files should I be able to provide of my rtos ? I'm assuming the .elf of my rtos shouldn't only be sufficient ?

Thank you very much.

run in user mode

Hi,

Is there a way to run zephyr only in user/machine mode ?
We dont want to run in supervisor mode.

Please let me know

regards,
sathya