Linux boot stuck at bootcmd execution #95
Description
Is there an existing CVA6-SDK task for this?
- I have searched the existing task issues
Task Description
Hello,
I am trying to boot Linux on the cv32a6 running on the Nexys video target which has been recently added to the cva6 support. I followed the instructions from the Readme to build my image using make images and flashing the results on a 4Gb SD card using sudo -E make flash-sdcard SDDEVICE=<my_device>.
The OpenSBI firmware and the u-boot seem to execute properly but the boot process gets stuck at the execution of the bootcmd of u-boot to get the kernel. Here is what I get when booting :
Hello World!
init SPI
status: 0x0000000000000025
status: 0x0000000000000025
SPI initialized!
initializing SD...
SD command cmd0 response : 01
SD command cmd55 response : 01
SD command cmd41 response : 01
SD command cmd55 response : 01
SD command cmd41 response : 01
SD command cmd55 response : 01
SD command cmd41 response : 01
SD command cmd55 response : 01
SD command cmd41 response : 01
SD command cmd55 response : 01
SD command cmd41 response : 00
sd initialized!
gpt partition table header:
signature: 5452415020494645
revision: 00010000
size: 0000005C
crc_header: A1C813DD
reserved: 00000000
current lba: 0000000000000001
backup lda: 0000000000747FFF
partition entries lba: 0000000000000002
number partition entries: 00000080
size partition entries: 00000080
gpt partition entry 00
partition type guid: D5F7127456A1134B81DC867174929325
partition guid: EE9DD9C1C20E7C4689F3DD39521A8723
first lba: 0000000000000800
last lba: 0000000000002B6B
attributes: 0000000000000000
name: 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
gpt partition entry 01
partition type guid: AF3DC60F838472478E793D69D8477DE4
partition guid: 37BB12CA47E46A4C9406CE014A04194E
first lba: 0000000000100000
last lba: 0000000000747FDE
attributes: 0000000000000000
name: 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
gpt partition entry 02
partition type guid: 00000000000000000000000000000000
partition guid: 00000000000000000000000000000000
first lba: 0000000000000000
last lba: 0000000000000000
attributes: 0000000000000000
name: 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
gpt partition entry 03
partition type guid: 00000000000000000000000000000000
partition guid: 00000000000000000000000000000000
first lba: 0000000000000000
last lba: 0000000000000000
attributes: 0000000000000000
name: 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
copying boot image ......... done!
OpenSBI v0.9
____ _____ ____ _____
/ __ \ / ____| _ \_ _|
| | | |_ __ ___ _ __ | (___ | |_) || |
| | | | '_ \ / _ \ '_ \ \___ \| _ < | |
| |__| | |_) | __/ | | |____) | |_) || |_
\____/| .__/ \___|_| |_|_____/|____/_____|
| |
|_|
Platform Name : ARIANE RISC-V
Platform Features : medeleg
Platform HART Count : 1
Platform IPI Device : aclint-mswi
Platform Timer Device : aclint-mtimer @ 1000000Hz
Platform Console Device : uart8250
Platform HSM Device : ---
Platform Reboot Device : ---
Platform Shutdown Device : ---
Firmware Base : 0x80000000
Firmware Size : 196 KB
Runtime SBI Version : 0.3
Domain0 Name : root
Domain0 Boot HART : 0
Domain0 HARTs : 0*
Domain0 Region00 : 0x02008000-0x0200bfff (I)
Domain0 Region01 : 0x02000000-0x02007fff (I)
Domain0 Region02 : 0x80000000-0x8003ffff ()
Domain0 Region03 : 0x00000000-0xffffffff (R,W,X)
Domain0 Next Address : 0x80400000
Domain0 Next Arg1 : 0x82200000
Domain0 Next Mode : S-mode
Domain0 SysReset : yes
Boot HART ID : 0
Boot HART Domain : root
Boot HART ISA : rv32imasu
Boot HART Features : scounteren,mcounteren
Boot HART PMP Count : 0
Boot HART PMP Granularity : 0
Boot HART PMP Address Bits: 0
Boot HART MHPM Count : 0
Boot HART MIDELEG : 0x00000222
Boot HART MEDELEG : 0x0000b109
U-Boot 2021.07-rc4-g920075ecfa-dirty (Jun 04 2024 - 10:01:34 +0200)
CPU: rv32ima
Model: eth,ariane-bare
DRAM: 128 MiB
MMC: xps-spi@20000000:mmc@0: 0
Loading Environment from nowhere... OK
In: uart@10000000
Out: uart@10000000
Err: uart@10000000
Net: No ethernet found.
Hit any key to stop autoboot: 0
When the countdown hits 0, it then hang there without output message. This corresponds to the execution of the boot command configured in u-boot : CONFIG_BOOTCOMMAND="mmc info; mmc read 90000000 100000 7000; setenv fdt_high 0xffffffff; bootm 90000000 - $(fdtcontroladdr)". I observe the same behavior if I manually run mmc command which try to access the mmc device (e.g mmc info, mmc dev, mmc read, ...) : the system gets stuck without error message.
In order to run on the new target, I had to add/modify a few files in the configuration :
- added
u-boot/configs/openhwgroup_cv32a6_nexys_defconfig:
CONFIG_RISCV=y
CONFIG_DEFAULT_DEVICE_TREE="cv32a6_nexys"
CONFIG_TARGET_OPENHWGROUP_CVA6_GENESYSII=y
CONFIG_RISCV_SMODE=y
# CONFIG_RISCV_ISA_C is not set
CONFIG_OF_BOARD_SETUP=y
CONFIG_BOOTDELAY=5
CONFIG_USE_BOOTCOMMAND=y
CONFIG_BOOTCOMMAND="mmc info; mmc read 90000000 100000 7000; setenv fdt_high 0xffffffff; bootm 90000000 - $(fdtcontroladdr)"
CONFIG_DISPLAY_CPUINFO=y
CONFIG_SPL_SPI_FLASH_MTD=y
CONFIG_CMD_GPT=y
# CONFIG_RANDOM_UUID is not set
CONFIG_CMD_MMC=y
CONFIG_CMD_MTD=y
CONFIG_CMD_PART=y
CONFIG_OF_EMBED=y
CONFIG_MMC=y
# CONFIG_MMC_WRITE is not set
CONFIG_MMC_SPI=y
CONFIG_DM_MTD=y
CONFIG_MTD_SPI_NAND=y
CONFIG_SPI_FLASH_ATMEL=y
CONFIG_SPI_FLASH_EON=y
CONFIG_SPI_FLASH_GIGADEVICE=y
CONFIG_SPI_FLASH_ISSI=y
CONFIG_SPI_FLASH_MACRONIX=y
CONFIG_SPI_FLASH_SPANSION=y
CONFIG_SPI_FLASH_STMICRO=y
CONFIG_SPI_FLASH_SST=y
CONFIG_SPI_FLASH_WINBOND=y
CONFIG_SPI_FLASH_XMC=y
# CONFIG_SPI_FLASH_USE_4K_SECTORS is not set
CONFIG_SPI_FLASH_MTD=y
CONFIG_SYS_NS16550=y
CONFIG_SPI=y
CONFIG_XILINX_SPI=y
CONFIG_BAUDRATE=57600
CONFIG_DISPLAY_BOARDINFO=y
Changed uboot baudrate to match the baudrate required by the nexys uart.
Changed device tree target (see next point)
- added
u-boot/arch/riscv/dts/cv32a6_nexys.dts:
/dts-v1/;
/ {
#address-cells = <1>;
#size-cells = <1>;
compatible = "eth,ariane-bare-dev";
model = "eth,ariane-bare";
chosen {
stdout-path = "/soc/uart@10000000:57600";
};
cpus {
#address-cells = <1>;
#size-cells = <0>;
timebase-frequency = <12500000 >;
CPU0: cpu@0 {
clock-frequency = <25000000 >;
device_type = "cpu";
reg = <0>;
status = "okay";
compatible = "eth, ariane", "riscv";
riscv,isa = "rv32ima";
mmu-type = "riscv,sv32";
tlb-split;
// HLIC - hart local interrupt controller
CPU0_intc: interrupt-controller {
#interrupt-cells = <1>;
interrupt-controller;
compatible = "riscv,cpu-intc";
};
};
};
memory@80000000 {
device_type = "memory";
reg = <0x80000000 0x08000000 >;
};
leds {
compatible = "gpio-leds";
heartbeat-led {
gpios = <&xlnx_gpio 1 0>;
linux,default-trigger = "heartbeat";
retain-state-suspended;
};
};
L26: soc {
#address-cells = <1>;
#size-cells = <1>;
compatible = "eth,ariane-bare-soc", "simple-bus";
ranges;
clint@2000000 {
compatible = "riscv,clint0";
interrupts-extended = <&CPU0_intc 3 &CPU0_intc 7>;
reg = <0x2000000 0xc0000>;
reg-names = "control";
};
PLIC0: interrupt-controller@c000000 {
#address-cells = <0>;
#interrupt-cells = <1>;
compatible = "riscv,plic0";
interrupt-controller;
interrupts-extended = <&CPU0_intc 11 &CPU0_intc 9>;
reg = <0xc000000 0x4000000>;
riscv,max-priority = <7>;
riscv,ndev = <30>;
};
// Specifying the interrupt controller in the devicetree is not necessary.
// Furthermore, the IRQ 65535 will cause a `hwirq 0xffff is too large` during
// Linux boot (occured with mainline linux 5.14.0).
// debug-controller@0 {
// compatible = "riscv,debug-013";
// interrupts-extended = <&CPU0_intc 65535>;
// reg = <0x0 0x1000>;
// reg-names = "control";
// };
uart@10000000 {
compatible = "ns16550a";
reg = < 0x10000000 0x1000>;
clock-frequency = <25000000 >;
current-speed = <57600>;
interrupt-parent = <&PLIC0>;
interrupts = <1>;
reg-shift = <2>; // regs are spaced on 32 bit boundary
reg-io-width = <4>; // only 32-bit access are supported
};
timer@18000000 {
compatible = "pulp,apb_timer";
interrupts = <0x00000004 0x00000005 0x00000006 0x00000007>;
reg = <0x18000000 0x00001000>;
interrupt-parent = <&PLIC0>;
reg-names = "control";
};
xps-spi@20000000 {
compatible = "xlnx,xps-spi-2.00.b", "xlnx,xps-spi-2.00.a";
#address-cells = <1>;
#size-cells = <0>;
interrupt-parent = <&PLIC0>;
interrupts = < 2 2 >;
reg = < 0x20000000 0x1000 >;
xlnx,family = "kintex7";
xlnx,fifo-exist = <0x1>;
xlnx,num-ss-bits = <0x1>;
xlnx,num-transfer-bits = <0x8>;
xlnx,sck-ratio = <0x4>;
mmc@0 {
compatible = "mmc-spi-slot";
reg = <0>;
spi-max-frequency = <12500000>;
voltage-ranges = <3300 3300>;
disable-wp;
};
// mmc-slot@0 {
// compatible = "fsl,mpc8323rdb-mmc-slot", "mmc-spi-slot";
// reg = <0>; //Chip select 0
// spi-max-frequency = <12500000>;
// voltage-ranges = <3300 3300>;
// //interrupts = < 2 2 >;
// //interrupt-parent = <&PLIC0>;
// };
};
eth: lowrisc-eth@30000000 {
compatible = "lowrisc-eth";
device_type = "network";
interrupt-parent = <&PLIC0>;
interrupts = <3 0>;
local-mac-address = [00 18 3e 02 e3 7f]; // This needs to change if more than one GenesysII on a VLAN
reg = <0x30000000 0x8000>;
};
xlnx_gpio: gpio@40000000 {
#gpio-cells = <2>;
compatible = "xlnx,xps-gpio-1.00.a";
gpio-controller ;
reg = <0x40000000 0x10000 >;
xlnx,all-inputs = <0x0>;
xlnx,all-inputs-2 = <0x0>;
xlnx,dout-default = <0x0>;
xlnx,dout-default-2 = <0x0>;
xlnx,gpio-width = <0x8>;
xlnx,gpio2-width = <0x8>;
xlnx,interrupt-present = <0x0>;
xlnx,is-dual = <0x1>;
xlnx,tri-default = <0xffffffff>;
xlnx,tri-default-2 = <0xffffffff>;
};
};
};
// delete ethernet device if disabled
/delete-node/ ð // DELETE_ETH
Device tree built from https://github.com/openhwgroup/cva6/tree/master/corev_apu/fpga/src/bootrom
- Deactivation of Ethernet configuration based on Add support for Nexys Video board cva6#1925 (comment)
I wonder what may be the issue? Where should I look at?
Thank a lot in advance !
Description of Done
I am sorry, I used the "task" template where I should have used of a blank issue.