Hello,
Can I choose 1 or 2?
Thank you.
Default device tree enable both of them. If you just want to see one spidev*.* you need to modify the device tree for it.
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Hello,
Thank you.
Hello,
As soon as /opt/nvidia/jetson-io/jetson-io.py is executed, the execution of jetson-io.py is immediately terminated.
The l4t version is # R32 (release), REVISION: 6.1 .
Can you guess the cause?
Thank you.
Hello,
I can see the spi node.
Codes that open and access spi are also executed normally.
However, I can’t check the waveform change with the oscilloscope.
What’s the problem?
Thank you.
Modify those pins spi1__ to spi1 in “nvidia,function” like below.
spi1_mosi_pc0 {
nvidia,enable-input = <0x1>;
nvidia,pins = "spi1_mosi_pc0";
nvidia,tristate = <0x0>;
nvidia,function = "spi1";
nvidia,pull = <0x1>;
};
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Hello,
I did a search and found the following files:
I don’t know which file to edit.
I was told to check something with dmesg, how do I check it?
What file do I have to modify?
jetsonhostpc@jetsonhostpc-Vostro-470:/media/jetsonhostpc/841a9ca5-d24b-49de-8e73-d245a962e433/home/nanohostpc/coding/spi_jetson/Linux_for_Tegra$ grep -r "spi1_mosi_pc0" *
source/public/kernel/kernel-4.9/drivers/pinctrl/tegra/pinctrl-tegra210.c:static const unsigned spi1_mosi_pc0_pins[] = {
source/public/kernel/kernel-4.9/drivers/pinctrl/tegra/pinctrl-tegra210.c: PINGROUP(spi1_mosi_pc0, SPI1, RSVD1, RSVD2, RSVD3, 0x3050, Y, Y, N, N, 0xae0, -1, -1, -1, -1, 28, 2, 30, 2, -1),
source/public/kernel/kernel-4.9/arch/arm64/boot/dts/nvidia/tegra210-p2597.dtsi: spi1_mosi_pc0 {
source/public/kernel/kernel-4.9/arch/arm64/boot/dts/nvidia/tegra210-p2597.dtsi: nvidia,pins = "spi1_mosi_pc0";
source/public/kernel/kernel-4.9/arch/arm64/boot/dts/nvidia/tegra210-p2595.dtsi: spi1_mosi_pc0 {
source/public/kernel/kernel-4.9/arch/arm64/boot/dts/nvidia/tegra210-p2595.dtsi: nvidia,pins = "spi1_mosi_pc0";
source/public/kernel/kernel-4.9/arch/arm64/boot/dts/nvidia/tegra210-p2571.dts: spi1_mosi_pc0 {
source/public/kernel/kernel-4.9/arch/arm64/boot/dts/nvidia/tegra210-p2571.dts: nvidia,pins = "spi1_mosi_pc0";
source/public/kernel/kernel-4.9/arch/arm64/boot/dts/nvidia/tegra210-smaug.dts: spi1_mosi_pc0 {
source/public/kernel/kernel-4.9/arch/arm64/boot/dts/nvidia/tegra210-smaug.dts: nvidia,pins = "spi1_mosi_pc0";
source/public/kernel/kernel-4.9/Documentation/devicetree/bindings/pinctrl/nvidia,tegra210-pinmux.txt: spi1_cs1_pc4, spi1_miso_pc1, spi1_mosi_pc0, spi1_sck_pc2, spi2_cs0_pb7,
source/public/hardware/nvidia/soc/tegra/kernel-include/dt-common/jetson/tegra210-jetson-tx1-p2597-2180-a01-devkit.h:#define HDR40_PIN19 "spi1_mosi_pc0"
source/public/hardware/nvidia/soc/tegra/kernel-include/dt-common/jetson/tegra210-p3448-0000-p3449-0000-a01.h:#define HDR40_PIN19 "spi1_mosi_pc0"
source/public/hardware/nvidia/soc/tegra/kernel-include/dt-common/jetson/tegra210-p3448-0000-p3449-0000-a02.h:#define HDR40_PIN19 "spi1_mosi_pc0"
source/public/hardware/nvidia/soc/tegra/kernel-include/dt-common/jetson/tegra210-p3448-0003-p3542-0000.h:#define HDR40_PIN19 "spi1_mosi_pc0"
Thank you.
Check which dtb was applied by dmesg | grep -i kernel
Then check this dts include which dts file or you can modify all of them to make sure of it.
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Hello,
If it is confirmed as below, is it tegra210-p3448-0002-p3449-0000-b00.dts file?
tegra210-p3448-0002-p3449-0000-b00.dts
When you say edit all files, do you mean edit all files with the following content?
manager@manager-desktop:~$ dmesg | grep -i kernel
[ 0.000000] Kernel command line: tegraid=21.1.2.0.0 ddr_die=4096M@2048M section=512M memtype=0 vpr_resize usb_port_owner_info=0 lane_owner_info=0 emc_max_dvfs=0 touch_id=0@63 video=tegrafb no_console_suspend=1 console=ttyS0,115200n8 debug_uartport=lsport,4 earlyprintk=uart8250-32bit,0x70006000 maxcpus=4 usbcore.old_scheme_first=1 lp0_vec=0x1000@0xff780000 core_edp_mv=1125 core_edp_ma=4000 gpt earlycon=uart8250,mmio32,0x70006000 root=/dev/mmcblk0p1 rw rootwait rootfstype=ext4 console=ttyS0,115200n8 console=tty0 fbcon=map:0 net.ifnames=0 sdhci_tegra.en_boot_part_access=1 quiet root=/dev/mmcblk0p1 rw rootwait rootfstype=ext4 console=ttyS0,115200n8 console=tty0 fbcon=map:0 net.ifnames=0 sdhci_tegra.en_boot_part_access=1
[ 0.000000] Memory: 3568412K/4159488K available (15358K kernel code, 2956K rwdata, 6692K rodata, 8640K init, 612K bss, 115940K reserved, 475136K cma-reserved)
[ 0.000000] Virtual kernel memory layout:
[ 0.001846] kmemleak: Kernel memory leak detector disabled
[ 0.207972] DTS File Name: /home/test/Linux_for_Tegra/source/public/kernel/kernel-4.9/arch/arm64/boot/dts/../../../../../../hardware/nvidia/platform/t210/porg/kernel-dts/**tegra210-p3448-0002-p3449-0000-b00.dts**
[ 0.321306] alternatives: patching kernel code
[ 0.416526] DTS File Name: /home/test/Linux_for_Tegra/source/public/kernel/kernel-4.9/arch/arm64/boot/dts/../../../../../../hardware/nvidia/platform/t210/porg/kernel-dts/**tegra210-p3448-0002-p3449-0000-b00.dts**
[ 0.550046] eventlib_kernel: keventlib is initialized, test id: 0
[ 1.678895] sysfs: cannot create duplicate filename '/kernel/rt8168_power'
[ 1.678975] WARNING: CPU: 0 PID: 1 at /dvs/git/dirty/git-master_linux/kernel/kernel-4.9/fs/sysfs/dir.c:31 sysfs_warn_dup+0x68/0x88
[ 1.679299] [<ffffff8009610d20>] kernel_init_freeable+0x1a0/0x244
[ 1.679311] [<ffffff8008f63dc0>] kernel_init+0x18/0x108
[ 1.692071] unable to create rt8168_power_saver kernel object!
[ 2.036254] KERNEL: PMC reset status reg: 0x0
[ 2.082548] Freeing unused kernel memory: 8640K
[ 4.708048] WARNING: CPU: 0 PID: 2798 at /dvs/git/dirty/git-master_linux/kernel/kernel-4.9/drivers/spi/spidev.c:767 0xffffff8000f892a8
[ 4.835568] WARNING: CPU: 3 PID: 2798 at /dvs/git/dirty/git-master_linux/kernel/kernel-4.9/drivers/spi/spidev.c:767 0xffffff8000f892a8
[ 4.863734] WARNING: CPU: 3 PID: 2798 at /dvs/git/dirty/git-master_linux/kernel/kernel-4.9/drivers/spi/spidev.c:767 0xffffff8000f892a8
[ 4.888018] WARNING: CPU: 3 PID: 2798 at /dvs/git/dirty/git-master_linux/kernel/kernel-4.9/drivers/spi/spidev.c:767 0xffffff8000f892a8
spi1_mosi_pc0 {
nvidia,enable-input = <0x1>;
nvidia,pins = "spi1_mosi_pc0";
nvidia,tristate = <0x0>;
nvidia,function = "spi1";
nvidia,pull = <0x1>;
};
Thank you.
Hello,
extracted_proc.dts (330.0 KB)
Attach the dts generated by the following command.
sudo dtc -I fs -O dts -o extracted_proc.dts /proc/device-tree
Thank you.
Hello,
Edit spi1_mosi_pc0 in tegra210-porg-pinmux-p3448-0002-b00.dtsi as follows and compile dtb
I flashed dtb with the following command.
sudo ./flash.sh -k DTB jetson-nano-devkit-emmc mmcblk0p1
But still there is no change in the oscilloscope’s waveform.
Attach dmesg.txt.
What more can we do?
Thank you.
Have a dump the REG by below command to check.
sudo cat /sys/kernel/debug/tegra_pinctrl_reg | grep -i spi
Did you short pin 22 and 37 for loopback test to check the waveform?
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manager@manager-desktop:~$ sudo cat /sys/kernel/debug/tegra_pinctrl_reg | grep -i spi
[sudo] password for manager:
Bank: 1 Reg: 0x70003050 Val: 0x0000e045 -> spi1_mosi_pc0
Bank: 1 Reg: 0x70003054 Val: 0x0000e045 -> spi1_miso_pc1
Bank: 1 Reg: 0x70003058 Val: 0x0000e045 -> spi1_sck_pc2
Bank: 1 Reg: 0x7000305c Val: 0x0000e049 -> spi1_cs0_pc3
Bank: 1 Reg: 0x70003060 Val: 0x0000e049 -> spi1_cs1_pc4
Bank: 1 Reg: 0x70003064 Val: 0x00006046 -> spi2_mosi_pb4
Bank: 1 Reg: 0x70003068 Val: 0x00006046 -> spi2_miso_pb5
Bank: 1 Reg: 0x7000306c Val: 0x00006046 -> spi2_sck_pb6
Bank: 1 Reg: 0x70003070 Val: 0x00006046 -> spi2_cs0_pb7
Bank: 1 Reg: 0x70003074 Val: 0x00006045 -> spi2_cs1_pdd0
Bank: 1 Reg: 0x70003078 Val: 0x0000e015 -> spi4_mosi_pc7
Bank: 1 Reg: 0x7000307c Val: 0x0000e015 -> spi4_miso_pd0
Bank: 1 Reg: 0x70003080 Val: 0x0000e015 -> spi4_sck_pc5
Bank: 1 Reg: 0x70003084 Val: 0x0000e015 -> spi4_cs0_pc6
Bank: 1 Reg: 0x70003088 Val: 0x00002015 -> qspi_sck_pee0
Bank: 1 Reg: 0x7000308c Val: 0x00002015 -> qspi_cs_n_pee1
Bank: 1 Reg: 0x70003090 Val: 0x00002015 -> qspi_io0_pee2
Bank: 1 Reg: 0x70003094 Val: 0x00002015 -> qspi_io1_pee3
Bank: 1 Reg: 0x70003098 Val: 0x00002015 -> qspi_io2_pee4
Bank: 1 Reg: 0x7000309c Val: 0x00002015 -> qspi_io3_pee5
Bank: 0 Reg: 0x70000b70 Val: 0x00000001 -> drive_qspi_comp_control
Bank: 0 Reg: 0x70000b78 Val: 0x00000001 -> drive_qspi_lpbk_control
Bank: 0 Reg: 0x70000a78 Val: 0x00808000 -> drive_qspi_comp
Thank you.
Hello,
Once the clock doesn’t come out.
When the clock is confirmed, I will also do a loopback test.
Thank you.
Looks like your device didn’t apply well.
The REG dump should be like below. Check by dmesg | grep -i kernel if apply correct dtb build from your host. Or dump by dtc to confirm it. Also check if the /boot/extlinux/extlinux.conf have define the FDT to load dtb from rootfs.
Bank: 1 Reg: 0x70003050 Val: 0x0000e044 -> spi1_mosi_pc0
Bank: 1 Reg: 0x70003054 Val: 0x0000e044 -> spi1_miso_pc1
Bank: 1 Reg: 0x70003058 Val: 0x0000e044 -> spi1_sck_pc2
Bank: 1 Reg: 0x7000305c Val: 0x0000e048 -> spi1_cs0_pc3
Bank: 1 Reg: 0x70003060 Val: 0x0000e048 -> spi1_cs1_pc4
Bank: 1 Reg: 0x70003064 Val: 0x00006044 -> spi2_mosi_pb4
Bank: 1 Reg: 0x70003068 Val: 0x00006044 -> spi2_miso_pb5
Bank: 1 Reg: 0x7000306c Val: 0x00006044 -> spi2_sck_pb6
Bank: 1 Reg: 0x70003070 Val: 0x00006044 -> spi2_cs0_pb7
Bank: 1 Reg: 0x70003074 Val: 0x00006044 -> spi2_cs1_pdd0
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Hello,
dmesg | grep -i kernel
manager@manager-desktop:~$ dmesg | grep -i kernel
[ 0.000000] Kernel command line: tegraid=21.1.2.0.0 ddr_die=4096M@2048M section=512M memtype=0 vpr_resize usb_port_owner_info=0 lane_owner_info=0 emc_max_dvfs=0 touch_id=0@63 video=tegrafb no_console_suspend=1 console=ttyS0,115200n8 debug_uartport=lsport,4 earlyprintk=uart8250-32bit,0x70006000 maxcpus=4 usbcore.old_scheme_first=1 lp0_vec=0x1000@0xff780000 core_edp_mv=1125 core_edp_ma=4000 gpt earlycon=uart8250,mmio32,0x70006000 root=/dev/mmcblk0p1 rw rootwait rootfstype=ext4 console=ttyS0,115200n8 console=tty0 fbcon=map:0 net.ifnames=0 sdhci_tegra.en_boot_part_access=1 quiet root=/dev/mmcblk0p1 rw rootwait rootfstype=ext4 console=ttyS0,115200n8 console=tty0 fbcon=map:0 net.ifnames=0 sdhci_tegra.en_boot_part_access=1
[ 0.000000] Memory: 3568412K/4159488K available (15358K kernel code, 2956K rwdata, 6692K rodata, 8640K init, 612K bss, 115940K reserved, 475136K cma-reserved)
[ 0.000000] Virtual kernel memory layout:
[ 0.001814] kmemleak: Kernel memory leak detector disabled
[ 0.208256] DTS File Name: /home/test/Linux_for_Tegra/source/public/kernel/kernel-4.9/arch/arm64/boot/dts/../../../../../../hardware/nvidia/platform/t210/porg/kernel-dts/tegra210-p3448-0002-p3449-0000-b00.dts
[ 0.321315] alternatives: patching kernel code
[ 0.416542] DTS File Name: /home/test/Linux_for_Tegra/source/public/kernel/kernel-4.9/arch/arm64/boot/dts/../../../../../../hardware/nvidia/platform/t210/porg/kernel-dts/tegra210-p3448-0002-p3449-0000-b00.dts
[ 0.554319] eventlib_kernel: keventlib is initialized, test id: 0
[ 1.763794] sysfs: cannot create duplicate filename '/kernel/rt8168_power'
[ 1.763877] WARNING: CPU: 1 PID: 1 at /dvs/git/dirty/git-master_linux/kernel/kernel-4.9/fs/sysfs/dir.c:31 sysfs_warn_dup+0x68/0x88
[ 1.764194] [<ffffff8009610d20>] kernel_init_freeable+0x1a0/0x244
[ 1.764206] [<ffffff8008f63dc0>] kernel_init+0x18/0x108
[ 1.777002] unable to create rt8168_power_saver kernel object!
[ 2.124485] KERNEL: PMC reset status reg: 0x0
[ 2.170869] Freeing unused kernel memory: 8640K
[ 4.569343] WARNING: CPU: 2 PID: 2864 at /dvs/git/dirty/git-master_linux/kernel/kernel-4.9/drivers/spi/spidev.c:767 0xffffff8000f892a8
[ 4.591301] WARNING: CPU: 2 PID: 2864 at /dvs/git/dirty/git-master_linux/kernel/kernel-4.9/drivers/spi/spidev.c:767 0xffffff8000f892a8
[ 4.637157] WARNING: CPU: 2 PID: 2864 at /dvs/git/dirty/git-master_linux/kernel/kernel-4.9/drivers/spi/spidev.c:767 0xffffff8000f892a8
[ 4.693160] WARNING: CPU: 2 PID: 2864 at /dvs/git/dirty/git-master_linux/kernel/kernel-4.9/drivers/spi/spidev.c:767 0xffffff8000f892a8
/boot/extlinux/extlinux.conf
manager@manager-desktop:~$ cat /boot/extlinux/extlinux.conf
TIMEOUT 30
DEFAULT primary
MENU TITLE L4T boot options
LABEL primary
MENU LABEL primary kernel
LINUX /boot/Image
INITRD /boot/initrd
FDT /boot/tegra210-p3448-0002-p3449-0000-b00.dtb
APPEND ${cbootargs} quiet root=/dev/mmcblk0p1 rw rootwait rootfstype=ext4 console=ttyS0,115200n8 console=tty0 fbcon=map:0 net.ifnames=0 sdhci_tegra.en_boot_part_access=1
# When testing a custom kernel, it is recommended that you create a backup of
# the original kernel and add a new entry to this file so that the device can
# fallback to the original kernel. To do this:
#
# 1, Make a backup of the original kernel
# sudo cp /boot/Image /boot/Image.backup
#
# 2, Copy your custom kernel into /boot/Image
#
# 3, Uncomment below menu setting lines for the original kernel
#
# 4, Reboot
# LABEL backup
# MENU LABEL backup kernel
# LINUX /boot/Image.backup
# INITRD /boot/initrd
# APPEND ${cbootargs}```
Thank you.Using dtc to un-compile below file to check the modification.
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