Linux Kernel (6.6.47)

Owned by Wells Lu
Last updated: Oct 08, 2024
23 min read

 

The Linux kernel is the core component of the Linux operating system, serving as the central part that interacts directly with the computer's hardware. Developed by Linus Torvalds and the open-source community, the Linux kernel is released under the GNU General Public License (GPL) and is a key example of free and open-source software.

Linux is widely used in embedded systems, such as mobile phones, tablets, routers, TVs, and electronic game consoles. The Android operating system widely used on mobile devices is also built on the Linux core. Since Linux is free software, anyone can build a Linux package that meets their needs.

For further information, refer to:

Linux official web: LINUX.ORG

Linux 6.6.47 (LTS) is downloaded from: linux-6.6.47.tar.gz

Table of Contents

Features of Linux

The Linux kernel boasts several prominent features, including:

  1. Open Source: Linux is developed under the GNU General Public License (GPL), making its source code freely available for modification and redistribution.

  2. Modularity: The kernel is designed with a modular architecture, allowing for the addition or removal of features as needed.

  3. Multiplatform Support: Linux supports a wide range of hardware architectures, from desktop computers to embedded devices, servers, and supercomputers.

  4. Multitasking and Multiuser: Linux supports multitasking, enabling multiple processes to run simultaneously, and multiuser capabilities, allowing multiple users to interact with the system concurrently.

  5. Memory Management: The kernel efficiently manages system memory, including virtual memory, memory allocation, and memory protection mechanisms.

  6. Device Drivers: Linux includes a vast array of device drivers, providing support for a diverse range of hardware components, peripherals, and devices.

  7. Networking: Linux offers robust networking capabilities, supporting various networking protocols and technologies for communication.

  8. Security: The kernel incorporates numerous security features, including access controls, permissions, encryption, and secure communication protocols, to safeguard system integrity and data privacy.

  9. File Systems: Linux supports multiple file systems, including ext4, btrfs, xfs, and ntfs, and etc.

  10. Scalability: Linux scales effectively from small embedded devices to large-scale server environments.

These features collectively contribute to Linux's widespread adoption and success across diverse computing environments.

Supported Drivers for SP7350 Platform

The source files of the Linux kernel are centrally located within the "linux/kernel/" directory under the project's top directory. For the SP7350 platform, a wide array of device drivers is supported. These drivers are within the "drivers/" directory. Below is a reference table detailing the drivers along with their corresponding feature descriptions:

Drivers

Folders or files

Features

8-bit NAND

mtd/nand/raw/sp_paranand/

  1. Support MTD framework.

  2. Support read and write standard 2k/4k/8k ECC sectors.

  3. Support block and chip erase.

ADC (SAR12B)

iio/adc/sp-adc.c

  1. Support read 4 channels external voltage.

  2. Support IIO interface.

AXI Arbiter

soc/sunplus/

  1. Sunplus internal use for setting AXI bus.

AXI DM

misc/sunplus_dm_test.c

  1. Sunplus internal use for testing AXI bus.

AXI DMA

dma/dw-axi-dmac/

  1. Support Linux DMA Engine framework.

  2. Support memory-to-memory copy.

AXI Monitor

soc/sunplus/

  1. Sunplus internal use for monitoring AXI bus.

CB DMA

dma/sp_cbdma.c

  1. Sunplus internal use.　

Clock

clk/clk-sp7350.c

  1. Support Linux Common Clock Framework.

  2. Support clock functions for all devices.

CPUFreq

cpufreq/sp7350-cpufreq.c

  1. Support CPU frequency scaling.

Crypto Engine

crypto/sunplus/

  1. Support RSA-256/512/1024/2048 encryption.

  2. Support AES-128/192/256 encryption and decryption with ECB, CBC, CTR, modes

  3. Support MD5, SHA3-224/256/384/512.

  4. Support GHASH for AES GCM mode
    RSA.

  5. Support POLY1305.

  6. Support modular exponentiation.

Display

(framebuffer)

media/platform/sunplus/display/

sp7350/

  1. Support framebuffer.

  2. Support V4L2 framework

  3. Video input :

    1. Support 5 layers input video source, including 4 layers OSD and 1 layer image with scaling up and down.

    2. OSD layers (osd0, osd1, osd2, osd3):

      1. Support formats: ARGB8888, RGBA8888, ARGB4444, RGBA4444, ARGB1555, RGB565, YUY2, 8bpp

      2. Support source resolution upto 1920x1080.

    3. Image layer (vpp0):

      1. Supports formats: UYVY, NV12, NV24, NV16, YUY2

      2. Support up and down scaling up

      3. Support source resolution upto 3840x2880.

  4. Video output :

    1. Support MIPI/DSI TX and MIPI/CSI TX.

    2. MIPI/DSI TX:

      1. Support fromats: RGB888, RGB666_24BITS, RGB666_18BITS, RGB565

      2. Support resolution upto 1920x1080.

    3. MIPI/CSI TX:

      1. Support fromats: YUV422_20BITS, RGB888, RGB565

      2. Support resolution upto 3840x2880.

    4. Note that MIPI/DSI TX and MIPI/CSI TX share the same D-PHY.

    5. Support clock frequency up to 1.5G bps.

    6. Support 1, 2 and 4 data lanes.

  5. MIPI/DSI-TX supports:

    1. LT8912B MIPI to HDMI Bridge

    2. Raspberry Pi LCD (800x480) Panel

    3. TCXD024IBLON-2 LCD (240x320) Panel

    4. HXM0686TFT-001 LCD (480x1280) Panel

Display

(DRM)

drivers/gpu/drm/sunplus/sp7350/

  1. Support DRM framework.

  2. Support legacy framebuffer device

  3. Video input :

    1. Support 5 layers fixed input video source, including 4 layers OSD and 1 layer image with scaling up/down and blending.
      L6-OSD0: Cursor plane (not yet)
      L5-OSD1: Overlay plane
      L4-OSD2: Overlay plane
      L3-VPP0: Overlay (media) plane
      L1-OSD3: Primary plane

    2. OSD layers (osd0, osd1, osd2, osd3):

      1. Support formats: ARGB8888, RGBA8888, ARGB4444, RGBA4444, ARGB1555, RGB565, YUY2, 8bpp

      2. Support source resolution upto 1920x1080

      3. Support blend alpha and color-keying function.

    3. Image layer (vpp0):

      1. Supports formats: UYVY, NV12, NV24, NV16, YUY2

      2. Support up and down scaling up

      3. Support source resolution upto 3840x2880

      4. Support blend alpha function.

    4. Support crop and pan function for all layers.

  4. Video output :

    1. support MIPI/DSI TX.

    2. MIPI/DSI TX:

      1. Support formats: RGB888, RGB666_24BITS, RGB666_18BITS, RGB565

      2. Support resolution upto 1920x1080.

    3. MIPI/CSI TX( not yet):

      1. Support formats: YUV422_20BITS, RGB888, RGB565

      2. Support resolution upto 3840x2880.

    4. Note that MIPI/DSI TX and MIPI/CSI TX share the same D-PHY.

    5. Support clock frequency up to 1.5G bps.

    6. Support 1, 2 and 4 data lanes.

  5. MIPI/DSI-TX supports:

    1. LT8912B MIPI to HDMI Bridge

    2. Raspberry Pi LCD (800x480) Panel

    3. TCXD024IBLON-2 LCD (240x320) Panel

    4. HXM0686TFT-001 LCD (480x1280) Panel

eMMC

mmc/host/sunplus_mmc.*

  1. Support Linux MMC framework.

  2. Support read and write User Data Area.

  3. Support access RPMB partition.

  4. Support DDR52, HS200 and HS400 speeds.

  5. Support dma mode.

  6. Support 1.8V and 3.3V devices.

Ethernet

net/ethernet/stmicro/stmmac/

  1. Support Half-duplex / Full-duplex operations.

  2. Support RMON/MIB counters.

  3. Support IEEE 1588 time-stamping (PTP).

  4. Support ARP offloading.

  5. Support automatic CRC / PAD insertion and checking.

  6. Support checksum offload for received and transmitted packets.

  7. Support standard or jumbo Ethernet packets.

  8. Support multi-cast.

  9. Support remote wake-up detection.

  10. Support programmable burst length, threshold, queue size.

  11. Support ethtool operations.

  12. Support loading MAC address from OTP.

GDC

media/platform/sunplus/gdc/

  1. Only support 8-bit data.

  2. Supported image formats:
    Grayscale(L8)、I420、YV12、NV12、NV21.

  3. Support max 4K UHD resolution.

  4. Support four simultaneous geometric warp functions at video resolutions up to 4K UHD.

  5. Support four types of transformations:

    1. Equisolid projected to plane.

    2. Equisolid projected to cylinder.

    3. Equidistant projected to arbitrary plane.

    4. Custom.

  6. All transformation types have three common parameters: pan, tilt, and zoom.

I2C

i2c/busses/i2c-designware-*.c

  1. Support RX and TX transferring.

  2. Support 100kHz, 400kHz, 1.6M speeds.

Mailbox

mailbox/sunplus*.*

  1. Support Linux mailbox framework.

  2. Support communication between CA55 and CM4.

MIPI/CSI-RX

media/platform/sunplus/mipicsi/

  1. Support Linux V4L2 framework.

  2. Support RAW8, RAW10 and RAW12 formats.

  3. Support packed RAW10 and RAW12 formats output.

  4. Support enumerating camera supported formats.

  5. Support media control.

  6. Support virtual channel.

  7. Support 1, 2 and 4 data lanes.

NVMEM (OTP)

nvmem/sp-ocotp*.c

  1. Support read OTP.

PinCtl / GPIO

pinctrl/sunplus/pinctrl-*.*

pinctrl/sunplus/gpio-sp7350.*

  1. Support Linux pinctrl framework.

  2. Support generic helper bindings.

  3. Support pin-mux of all devices.

  4. Support all GPIO pins.

  5. Support interrupt pins.

PWM

pwm/pwm-sunplus.c

  1. Support set frequency and duty.

  2. Support set polarity.

  3. Support enable and disable.

Regulators

  1. regulator/rt5759-regulator.c

  2. regulator/sti8070x-regulator.c

  1. Support Linux regulator framework.

  2. CPU frequency scaling.

Remoteproc

remote/sp_remoteproc.c

  1. Support downloading firmware of CM4.

  2. Support start and stop CM4.

  3. Support rpmsg (virtual serial port).

Reset

reset/reset-sunplus.c

  1. Support reset functions for all devices.

HW RNG

char/hw_random/sp7350-rng.c

  1. Support generating random number.

RTC

rtc/rtc-sp7350.c

  1. Support set and read time.

  2. Support set and read alarm.

  3. Support alarm interrupt.

Semaphore

hwspinlock/sunplus_hwspinlock.c

  1. Support hardware lock and unlock.

SPI

spi/spi-dw*

  1. Support master mode RX and TX transferring.

  2. Support set clock frequency.

  3. Support mode 0, 1, 2 and 3.

  4. Support DMA mode.

SPI-NAND

mtd/nand/raw/sp_*

  1. Support Linux mtd framework.

  2. Support read and write standard 2k ECC sectors for 1 or 2 planes.

  3. Support read and write standard 4k ECC sectors for 1 plane only.

  4. Support block and chip erase.

  5. Support 4-bit operations.

  6. Support set clock frequency.

SD / SDIO

mmc/host/sunplus_sd3.*

  1. Support Linux MMC framework.

  2. Support read and write operations.

  3. Support DMA mode.

  4. Support SDR25, SDR50 and SDR104 speeds.

  5. Support dynamic voltage-switching.

SPI-NOR

mtd/spi-nor/controllers/

sp-spi-nor.c

  1. Support Linux MTD framework.

  2. Support read and write operations.

  3. Support block and chip erase.

  4. Support set clock frequency.

STC

misc/sunplus_stc.c

  1. Initialize the parent STC of timer in kernel space.

  2. Easier to manage timer groups.

  1. Set the frequency when timer select STC as clock source.

Thermal

thermal/sunplus_thermal.c

  1. Support Linux Thermal framework.

  2. Support Linux HW monitor.

  3. Support read temperature of chip.

  4. Chip calibration data stored in OTP.

Timer

misc/sunplus_timer.c

  1. Support use the HW timer in user space.

  1. Support the selection of clock sources (default select STC source).

  2. User-defined timer interrupt handler.

USB2.0 EHCI

usb/host/ehci*-sunplus.*

  1. Support high-speed read and write operation.

USB2.0 OHCI

usb/host/ohci*-sunplus.*

  1. Support full-speed read and write operation.

USB2.0 PHY

phy/sunplus/phy-sunplus-usb2.c

  1. PHY driver of USB2.0.

USB2.0 UDC

usb/gadget/udc/sunplus_udc2.*

  1. Support device mode.

USB2.0 OTG

usb/phy/otg-sp7350-sunplus.c

  1. Support role switch between host mode and device mode.

  2. Support only HNP and SRP.

USB3.0 DRD

usb/dw3/

  1. Support super-speed, high-speed and full-speed access.

  2. Support host and device mode.

  3. Support dynamic-role switch.

USB3.0 extcon

extcon/extcon-usb-gpio-sunplus.c

  1. Support USB type C receptacle.

USB3.0 PHY

usb/phy/synopsysu3phy-sunplus.c

  1. PHY driver of USB3.0.

UART

tty/serial/sunplus-uart-sp7350.c

  1. Support all standard Baud rate.

  2. Support non-standard Baud rate up to 3,000,000 bps.

  3. Support hardware flow-control for UART1 and UART2.

  4. Support system console and early console for UART0.

  5. Support system request (sysrq) for system console.

Video sensors

media/i2c/imx219.c

media/i2c/imx307.c

media/i2c/imx708.c

media/i2c/ov5640.c

media/i2c/ov5647.c

media/i2c/tp2815.c

  1. Support video sensors: imx219, imx307, imx708, ov5640, and ov5647.

  2. Support CVBS to mipi-csi bridge, tp2815.

VIP9000 (NPU)

media/platform/sunplus/vip9000/

  1. Support VIP9000 opoerations.

Video decoder (VC8000D nano)

media/platform/sunplus/

videocodec/

  1. Support H.264 decode.

    1. Support output formats:  byte stream, NAL stream, SVC stream

    2. Support resolution upto 1920*1080.

  2. Support JPEG decode.

    1. Support output formats: JFIF file format 1.02

    2. Support resolution upto 1920*1080.

  3. Support H.264 post-processing.

    1. Support output formats: YUYV422, YVYU422, UYVY422, VYUY422

  4. Support JPEG post-processing.

    1. Support output formats: YUYV422, YVYU422, UYVY422, VYUY422Drivers

      Folders or files

      Features

      8-bit NAND

      mtd/nand/raw/sp_paranand/

      Support mtd framework.

      Support read and write standard 2k/4k/8k ECC sectors.

      Support block and chip erase.

      ADC (SAR12B)

      iio/adc/sp-adc.c

      Support read external voltage.

      Support iio interface.

      Audio (I2S)

      sound/soc/sunplus/

      Support Linux ALSA framework.

      Support S16_LE format, stereo record and play.

      Support frequencies: 32kHz, 44.1kHz, 48kHz, 64kHz, 96kHz and 192kHz.

      Support digital volume.

Video encoder (VC8000E nano)

media/platform/sunplus/

videocodec/

  1. Support H.264 encode.

    1. Support input formats: YUV20P,NV12, NV21, YUYV422, UYVY422

    2. Support resolution upto 1920*1080.

  2. Support VP8 encode.

    1. Support input formats: YUV20P,NV12, NV21, YUYV422, UYVY422

    2. Support resolution upto 1920*1080.

  3. Support JPEG encode.

    1. Support input formats: YUV20P,NV12, NV21, YUYV422, UYVY422

    2. Support resolution: 96*32 ~ 8192*8192

Watchdog

watchdog/sunplus_wdt_sp7350.c

  1. Support pretimeout function.

  2. Support nowayout function.

Traditionally, due to historical reasons, the sound driver within the Linux kernel has been located at the "sound/" directory, rather than under the "drivers/" directory as might be expected.

Drivers

Folders or files

Features

Audio (I2S)

soc/sunplus/

  1. Support Linux ALSA framework.

  2. Support S16_LE format, stereo record and play.

  3. Support frequencies: 32kHz, 44.1kHz, 48kHz, 64kHz, 96kHz and 192kHz.

  4. Support digital volume.

Audio codec

  1. soc/codecs/es8316-sunplus.c

  1. Support stereo headset output.

  2. Support microphone input.

SP7350 Platform-specific Files

Platform-specific files are located at “arch/arm64/” under Linux kernel directory. Below table details the files along with their corresponding feature descriptions:

Type

Folders

Files

 Descriptions

dts

boot/dts/sunplus/

sp7350-ev.dts

For Evaluation board

sp7350-dm.dts

For Demo board

defconfig files

configs/

sp7350_emmc_dm_defconfig

for Demo board, eMMC boot

sp7350_sdcard_dm_defconfig

for Demo board, SD card boot

sp7350_emmc_ev_defconfig

for EVB, eMMC boot

sp7350_sdcard_ev_defconfig

for EVB, SD card boot

sp7350_nand_ev_defconfig

for EVB, SPI-NAND flash boot

sp7350_pnand_ev_defconfig

for EVB, 8-bit NAND flash boot

Kconfig

./

Kconfig.platforms

for SP7350 platform

Note that U-Boot and Linux share device-tree source files. For usage guidance, please refer to:

https://sunplus.atlassian.net/wiki/x/HwB8dg

Log of Linux

[ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x412fd050] [ 0.000000] Linux version 6.6.47-SUNPLUS-v8-g05de8285b844 (wellslu@scdiu3) (aarch64-none-linux-gnu-gcc (Arm GNU Toolchain 12.3.Rel1 (Build arm-12.35)) 12.3.1 20230626, GNU ld (Arm GNU Toolchain 12.3.Rel1 (Build arm-12.35)) 2.40.0.20230627) #1 SMP Thu Sep 26 18:43:15 CST 2024 [ 0.000000] Machine model: Sunplus SP7350 EVB [ 0.000000] earlycon: sunplus_uart0 at MMIO 0x00000000f8801900 (options '115200n8') [ 0.000000] printk: bootconsole [sunplus_uart0] enabled [ 0.000000] OF: reserved mem: 0x0000000000000000..0x00000000000fffff (1024 KiB) nomap non-reusable null_pointer@0 [ 0.000000] Reserved memory: created DMA memory pool at 0x0000000000100000, size 1 MiB [ 0.000000] OF: reserved mem: initialized node rproc0@100000, compatible id shared-dma-pool [ 0.000000] OF: reserved mem: 0x0000000000100000..0x00000000001fffff (1024 KiB) nomap non-reusable rproc0@100000 [ 0.000000] OF: reserved mem: 0x0000000000200000..0x00000000002fffff (1024 KiB) nomap non-reusable tfa@200000 [ 0.000000] OF: reserved mem: 0x0000000000300000..0x00000000004fffff (2048 KiB) nomap non-reusable optee@300000 [ 0.000000] Reserved memory: created CMA memory pool at 0x000000004f400000, size 200 MiB [ 0.000000] OF: reserved mem: initialized node mipicsirx@4f400000, compatible id shared-dma-pool [ 0.000000] OF: reserved mem: 0x000000004f400000..0x000000005bbfffff (204800 KiB) map reusable mipicsirx@4f400000 [ 0.000000] Reserved memory: created DMA memory pool at 0x000000005be00000, size 1 MiB [ 0.000000] OF: reserved mem: initialized node vdev0buffer@5be00000, compatible id shared-dma-pool [ 0.000000] OF: reserved mem: 0x000000005be00000..0x000000005befffff (1024 KiB) nomap non-reusable vdev0buffer@5be00000 [ 0.000000] Reserved memory: created DMA memory pool at 0x000000005bf00000, size 0 MiB [ 0.000000] OF: reserved mem: initialized node vdev0vring0@5bf00000, compatible id shared-dma-pool [ 0.000000] OF: reserved mem: 0x000000005bf00000..0x000000005bf0ffff (64 KiB) nomap non-reusable vdev0vring0@5bf00000 [ 0.000000] Reserved memory: created DMA memory pool at 0x000000005bf10000, size 0 MiB [ 0.000000] OF: reserved mem: initialized node vdev0vring1@5bf10000, compatible id shared-dma-pool [ 0.000000] OF: reserved mem: 0x000000005bf10000..0x000000005bf1ffff (64 KiB) nomap non-reusable vdev0vring1@5bf10000 [ 0.000000] Reserved memory: created DMA memory pool at 0x000000005bf20000, size 0 MiB [ 0.000000] OF: reserved mem: initialized node vdev0_reserve@5bf20000, compatible id shared-dma-pool [ 0.000000] OF: reserved mem: 0x000000005bf20000..0x000000005bffffff (896 KiB) nomap non-reusable vdev0_reserve@5bf20000 [ 0.000000] Reserved memory: created CMA memory pool at 0x000000005c000000, size 64 MiB [ 0.000000] OF: reserved mem: initialized node disp_reserve@5c000000, compatible id shared-dma-pool [ 0.000000] OF: reserved mem: 0x000000005c000000..0x000000005fffffff (65536 KiB) map reusable disp_reserve@5c000000 [ 0.000000] OF: reserved mem: 0x0000000060000000..0x0000000073ffffff (327680 KiB) nomap non-reusable vcodec@60000000 [ 0.000000] OF: reserved mem: 0x0000000074000000..0x0000000077ffffff (65536 KiB) nomap non-reusable vcodec@74000000 [ 0.000000] OF: reserved mem: 0x0000000078000000..0x000000007fffffff (131072 KiB) nomap non-reusable npu_reserve@78000000 [ 0.000000] Reserved memory: created CMA memory pool at 0x0000000080000000, size 384 MiB [ 0.000000] OF: reserved mem: initialized node vcodec@80000000, compatible id shared-dma-pool [ 0.000000] OF: reserved mem: 0x0000000080000000..0x0000000097ffffff (393216 KiB) map reusable vcodec@80000000 [ 0.000000] Reserved memory: created CMA memory pool at 0x0000000098000000, size 128 MiB [ 0.000000] OF: reserved mem: initialized node gdc@98000000, compatible id shared-dma-pool [ 0.000000] OF: reserved mem: 0x0000000098000000..0x000000009fffffff (131072 KiB) map reusable gdc@98000000 [ 0.000000] Reserved memory: created DMA memory pool at 0x00000000fa240000, size 0 MiB [ 0.000000] OF: reserved mem: initialized node cm4runaddr@fa240000, compatible id shared-dma-pool [ 0.000000] OF: reserved mem: 0x00000000fa240000..0x00000000fa29ffff (384 KiB) nomap non-reusable cm4runaddr@fa240000 [ 0.000000] OF: NUMA: parsing numa-distance-map-v1 [ 0.000000] NUMA: NODE_DATA [mem 0xefffdb40-0xefffffff] [ 0.000000] NUMA: NODE_DATA [mem 0x10f8a8b40-0x10f8aafff] [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000000000-0x00000000ffffffff] [ 0.000000] DMA32 empty [ 0.000000] Normal [mem 0x0000000100000000-0x000000010fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000000000-0x00000000004fffff] [ 0.000000] node 0: [mem 0x0000000000500000-0x000000005bdfffff] [ 0.000000] node 0: [mem 0x000000005be00000-0x000000005bffffff] [ 0.000000] node 0: [mem 0x000000005c000000-0x000000005fffffff] [ 0.000000] node 0: [mem 0x0000000060000000-0x000000007fffffff] [ 0.000000] node 0: [mem 0x0000000080000000-0x00000000efffffff] [ 0.000000] node 1: [mem 0x0000000100000000-0x000000010fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x00000000efffffff] [ 0.000000] Initmem setup node 1 [mem 0x0000000100000000-0x000000010fffffff] [ 0.000000] cma: Reserved 16 MiB at 0x00000000eec00000 on node -1 [ 0.000000] psci: probing for conduit method from DT. [ 0.000000] psci: PSCIv1.1 detected in firmware. [ 0.000000] psci: Using standard PSCI v0.2 function IDs [ 0.000000] psci: Trusted OS migration not required [ 0.000000] psci: SMC Calling Convention v1.2 [ 0.000000] percpu: Embedded 20 pages/cpu s41128 r8192 d32600 u81920 [ 0.000000] Detected VIPT I-cache on CPU0 [ 0.000000] CPU features: detected: Virtualization Host Extensions [ 0.000000] CPU features: detected: Qualcomm erratum 1009, or ARM erratum 1286807, 2441009 [ 0.000000] CPU features: detected: ARM errata 1165522, 1319367, or 1530923 [ 0.000000] alternatives: applying boot alternatives [ 0.000000] Kernel command line: console=ttyS0,115200 earlycon root=/dev/mmcblk0p8 rw rootwait rootfstype=squashfs [ 0.000000] Fallback order for Node 0: 0 1 [ 0.000000] Fallback order for Node 1: 1 0 [ 0.000000] Built 2 zonelists, mobility grouping on. Total pages: 1032192 [ 0.000000] Policy zone: Normal [ 0.000000] mem auto-init: stack:all(zero), heap alloc:off, heap free:off [ 0.000000] software IO TLB: area num 4. [ 0.000000] software IO TLB: mapped [mem 0x00000000e6c00000-0x00000000eac00000] (64MB) [ 0.000000] Memory: 2689108K/4194304K available (13568K kernel code, 1816K rwdata, 4100K rodata, 2752K init, 568K bss, 694188K reserved, 811008K cma-reserved) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=2 [ 0.000000] rcu: Hierarchical RCU implementation. [ 0.000000] Tracing variant of Tasks RCU enabled. [ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 100 jiffies. [ 0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0 [ 0.000000] Root IRQ handler: gic_handle_irq [ 0.000000] GIC: Using split EOI/Deactivate mode [ 0.000000] rcu: srcu_init: Setting srcu_struct sizes based on contention. [ 0.000000] PLLA 147456000 [ 0.000000] PLLC 1500000000 [ 0.000000] PLLL3 1200000000 [ 0.000000] PLLD 800000000 [ 0.000000] PLLH 2075000000 [ 0.000000] PLLN 500000000 [ 0.000000] PLLS 2000000000 [ 0.000000] arch_timer: cp15 timer(s) running at 25.00MHz (phys). [ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x5c40939b5, max_idle_ns: 440795202646 ns [ 0.000000] sched_clock: 56 bits at 25MHz, resolution 40ns, wraps every 4398046511100ns [ 0.008309] Console: colour dummy device 80x25 [ 0.012741] Calibrating delay loop (skipped), value calculated using timer frequency.. 50.00 BogoMIPS (lpj=25000) [ 0.023012] pid_max: default: 32768 minimum: 301 [ 0.028343] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes, vmalloc hugepage) [ 0.037587] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes, vmalloc) [ 0.045448] Mount-cache hash table entries: 8192 (order: 4, 65536 bytes, vmalloc) [ 0.052928] Mountpoint-cache hash table entries: 8192 (order: 4, 65536 bytes, vmalloc) [ 0.061577] cacheinfo: Unable to detect cache hierarchy for CPU 0 [ 0.068119] RCU Tasks Trace: Setting shift to 2 and lim to 1 rcu_task_cb_adjust=1. [ 0.075767] rcu: Hierarchical SRCU implementation. [ 0.080501] rcu: Max phase no-delay instances is 400. [ 0.086335] smp: Bringing up secondary CPUs ... I/TC: Secondary CPU 1 initializing I/TC: Secondary CPU 1 switching to normal world boot I/TC: Secondary CPU 2 initializing I/TC: Secondary CPU 2 switching to normal world boot I/TC: Secondary CPU 3 initializing I/TC: Secondary CPU 3 switching to normal world boot [ 0.098968] Detected VIPT I-cache on CPU1 [ 0.099019] CPU1: Booted secondary processor 0x0000000100 [0x412fd050] [ 0.107192] Detected VIPT I-cache on CPU2 [ 0.107223] CPU2: Booted secondary processor 0x0000000200 [0x412fd050] [ 0.115367] Detected VIPT I-cache on CPU3 [ 0.115395] CPU3: Booted secondary processor 0x0000000300 [0x412fd050] [ 0.115444] smp: Brought up 2 nodes, 4 CPUs [ 0.151306] SMP: Total of 4 processors activated. [ 0.156029] CPU features: detected: 32-bit EL0 Support [ 0.161188] CPU features: detected: Data cache clean to the PoU not required for I/D coherence [ 0.169844] CPU features: detected: Common not Private translations [ 0.176139] CPU features: detected: CRC32 instructions [ 0.181300] CPU features: detected: RCpc load-acquire (LDAPR) [ 0.187069] CPU features: detected: LSE atomic instructions [ 0.192666] CPU features: detected: Privileged Access Never [ 0.198262] CPU features: detected: RAS Extension Support [ 0.203684] CPU features: detected: Speculative Store Bypassing Safe (SSBS) [ 0.210728] CPU: All CPU(s) started at EL2 [ 0.214790] alternatives: applying system-wide alternatives [ 0.224412] devtmpfs: initialized [ 0.233542] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275000 ns [ 0.243278] futex hash table entries: 1024 (order: 4, 65536 bytes, vmalloc) [ 0.260151] pinctrl core: initialized pinctrl subsystem [ 0.265920] NET: Registered PF_NETLINK/PF_ROUTE protocol family [ 0.272500] DMA: preallocated 512 KiB GFP_KERNEL pool for atomic allocations [ 0.279606] DMA: preallocated 512 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations [ 0.287421] DMA: preallocated 512 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations [ 0.295337] audit: initializing netlink subsys (disabled) [ 0.300826] audit: type=2000 audit(0.080:1): state=initialized audit_enabled=0 res=1 [ 0.301161] thermal_sys: Registered thermal governor 'step_wise' [ 0.308565] cpuidle: using governor menu [ 0.318651] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers. [ 0.325448] ASID allocator initialised with 65536 entries [ 0.332969] platform f8005c80.crtc0: Fixed dependency cycle(s) with /mipi-dsi@f8006600 [ 0.340913] platform f8006600.mipi-dsi: Fixed dependency cycle(s) with /i2c@f882e000/lcd@45 [ 0.349250] platform f8006600.mipi-dsi: Fixed dependency cycle(s) with /i2c@f882e000/hdmi@48 [ 0.357729] platform f8006600.mipi-dsi: Fixed dependency cycle(s) with /crtc0@f8005c80 [ 0.372090] gpio gpiochip0: Static allocation of GPIO base is deprecated, use dynamic allocation. [ 0.381354] SP7350 PinCtl by Sunplus Tech.(C) 2023 [ 0.382935] platform hdmi-connector: Fixed dependency cycle(s) with /i2c@f882e000/hdmi@48 [ 0.396144] Modules: 27024 pages in range for non-PLT usage [ 0.396148] Modules: 518544 pages in range for PLT usage [ 0.402899] iommu: Default domain type: Translated [ 0.412967] iommu: DMA domain TLB invalidation policy: strict mode [ 0.419329] SCSI subsystem initialized [ 0.423100] usbcore: registered new interface driver usbfs [ 0.428547] usbcore: registered new interface driver hub [ 0.433882] usbcore: registered new device driver usb [ 0.439317] platform f8006600.mipi-dsi: Fixed dependency cycle(s) with /i2c@f882e000/lcd@45 [ 0.447679] i2c 6-0045: Fixed dependency cycle(s) with /mipi-dsi@f8006600 [ 0.454575] platform hdmi-connector: Fixed dependency cycle(s) with /i2c@f882e000/hdmi@48 [ 0.462751] platform f8006600.mipi-dsi: Fixed dependency cycle(s) with /i2c@f882e000/hdmi@48 [ 0.471231] i2c 6-0048: Fixed dependency cycle(s) with /hdmi-connector [ 0.477788] i2c 6-0048: Fixed dependency cycle(s) with /mipi-dsi@f8006600 [ 0.485053] mc: Linux media interface: v0.10 [ 0.489292] videodev: Linux video capture interface: v2.00 [ 0.494789] pps_core: LinuxPPS API ver. 1 registered [ 0.499757] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it> [ 0.508941] PTP clock support registered [ 0.513025] Advanced Linux Sound Architecture Driver Initialized. [ 0.519398] Bluetooth: Core ver 2.22 [ 0.522921] NET: Registered PF_BLUETOOTH protocol family [ 0.528241] Bluetooth: HCI device and connection manager initialized [ 0.534627] Bluetooth: HCI socket layer initialized [ 0.539521] Bluetooth: L2CAP socket layer initialized [ 0.544597] Bluetooth: SCO socket layer initialized [ 0.549835] clocksource: Switched to clocksource arch_sys_counter [ 0.560231] NET: Registered PF_INET protocol family [ 0.565276] IP idents hash table entries: 65536 (order: 7, 524288 bytes, vmalloc) [ 0.574876] tcp_listen_portaddr_hash hash table entries: 2048 (order: 3, 32768 bytes, vmalloc) [ 0.583515] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, vmalloc) [ 0.591360] TCP established hash table entries: 32768 (order: 6, 262144 bytes, vmalloc) [ 0.599569] TCP bind hash table entries: 32768 (order: 8, 1048576 bytes, vmalloc) [ 0.607618] TCP: Hash tables configured (established 32768 bind 32768) [ 0.614178] UDP hash table entries: 2048 (order: 4, 65536 bytes, vmalloc) [ 0.620972] UDP-Lite hash table entries: 2048 (order: 4, 65536 bytes, vmalloc) [ 0.628294] NET: Registered PF_UNIX/PF_LOCAL protocol family [ 0.634129] RPC: Registered named UNIX socket transport module. [ 0.640004] RPC: Registered udp transport module. [ 0.644721] RPC: Registered tcp transport module. [ 0.649442] RPC: Registered tcp-with-tls transport module. [ 0.654951] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 0.662771] Initialise system trusted keyrings [ 0.667286] workingset: timestamp_bits=42 max_order=20 bucket_order=0 [ 0.673967] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 0.679930] NFS: Registering the id_resolver key type [ 0.684950] Key type id_resolver registered [ 0.689124] Key type id_legacy registered [ 0.693542] Key type cifs.idmap registered [ 0.697654] fuse: init (API version 7.39) [ 0.726961] Key type asymmetric registered [ 0.730995] Asymmetric key parser 'x509' registered [ 0.735917] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 245) [ 0.743326] io scheduler mq-deadline registered [ 0.747872] io scheduler kyber registered [ 0.751916] io scheduler bfq registered [ 0.757531] dw_axi_dmac_platform f80fc000.dma-controller: DesignWare AXI DMA Controller, 16 channels [ 0.767117] ttyS f8801900.serial: sp_uart0's Rx is in PIO mode. [ 0.772996] ttyS f8801900.serial: sp_uart0's Tx is in PIO mode. [ 0.779038] f8801900.serial: ttyS0 at MMIO 0xf8801900 (irq = 16, base_baud = 1562500) is a sp_uart0 [ 0.788149] printk: console [ttyS0] enabled [ 0.788149] printk: console [ttyS0] enabled [ 0.796440] printk: bootconsole [sunplus_uart0] disabled [ 0.796440] printk: bootconsole [sunplus_uart0] disabled [ 0.807507] rpi_touchscreen 6-0045: Atmel I2C read failed: -121 [ 0.809267] sp7350-drm display-subsystem: assigned reserved memory node disp_reserve@5c000000 [ 0.810878] sp7350-drm display-subsystem: bound f8005c80.crtc0 (ops 0xffffffc080dd7330) [ 0.822219] loop: module loaded [ 0.823312] sunplus-usb-synopsys-u3phy f80bd000.uphy: sunplus_usb_synopsys_u3phy_probe [ 0.830012] register sunplus_usb_otg0_driver [ 0.834609] register ehci0_hcd_sunplus_driver [ 0.838492] register ohci0_hcd_sunplus_driver [ 0.842890] usbcore: registered new interface driver cdc_acm [ 0.848329] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters [ 0.856327] usbcore: registered new interface driver usb-storage [ 0.862341] usbcore: registered new interface driver ch341 [ 0.867784] usbserial: USB Serial support registered for ch341-uart [ 0.874035] usbcore: registered new interface driver cp210x [ 0.879588] usbserial: USB Serial support registered for cp210x [ 0.885490] usbcore: registered new interface driver ftdi_sio [ 0.891215] usbserial: USB Serial support registered for FTDI USB Serial Device [ 0.898509] usbcore: registered new interface driver option [ 0.904063] usbserial: USB Serial support registered for GSM modem (1-port) [ 0.911009] usbcore: registered new interface driver pl2303 [ 0.916562] usbserial: USB Serial support registered for pl2303 [ 0.922616] mousedev: PS/2 mouse device common for all mice [ 0.929576] sp7350-rtc f8801180.rtc: registered as rtc0 [ 0.933537] sp7350-rtc f8801180.rtc: setting system clock to 1970-01-01T08:42:04 UTC (31324) [ 0.941638] [RTC] Info: sp7350-rtc loaded [ 0.945692] i2c_dev: i2c /dev entries driver [ 0.950324] sunplus-gdc f8c09000.gdc: assigned reserved memory node gdc@98000000 [ 0.957486] hantro_dec f8168000.hantro_vc8000d: dec/pp kernel module. [ 0.963779] hantro_dec f8168000.hantro_vc8000d: major:242 minor:0 [ 0.969976] hantro_dec f8168000.hantro_vc8000d: clock enabled [ 0.975583] hantro_dec f8168000.hantro_vc8000d: reset okay [ 0.981044] hantro_dec f8168000.hantro_vc8000d: Core 0 HW ID=0x6e645000 [ 0.987639] hantro_dec f8168000.hantro_vc8000d: Supported HW found at 0xf8168000 [ 0.995038] hantro_dec f8168000.hantro_vc8000d: core[0] has H264 [ 1.001007] hantro_dec f8168000.hantro_vc8000d: core[0] has JPEG [ 1.006996] hantro_dec f8168000.hantro_vc8000d: core[0] has PP [ 1.012810] hantro_dec f8168000.hantro_vc8000d: reset hardware [ 1.018768] hantro_enc f80ff000.hantro_vc8000e: major:241 minor:0 [ 1.024820] hantro_enc f80ff000.hantro_vc8000e: mem iobaseaddr = f80ff000h [ 1.031655] hantro_enc f80ff000.hantro_vc8000e: mem mapping = ffffffc081765000h [ 1.039030] hantro_enc f80ff000.hantro_vc8000e: mem iosize = fffh [ 1.045194] hantro_enc f80ff000.hantro_vc8000e: clock enabled [ 1.050921] hantro_enc f80ff000.hantro_vc8000e: reset okay [ 1.056386] hantro_enc f80ff000.hantro_vc8000e: HW at base <0xf80ff000> with ID <0x6e655000> [ 1.065123] memalloc_d video_codec_dmem: major:240 minor:0 [ 1.070355] memalloc_d video_codec_dmem: module init [ 1.075230] memalloc_d video_codec_dmem: SW build 1000 [ 1.080431] memalloc_d video_codec_dmem: linear memory base = 0x74000000 [ 1.087199] memalloc_d video_codec_dmem: linear memory size = 64 MB [ 1.093551] memalloc_d video_codec_dmem: Total size 64 MB; 4096 chunks of size 16384 [ 1.101416] memalloc_e video_codec_emem: allocation method: DYNAMIC [ 1.107514] memalloc_e video_codec_emem: major:239 minor:0 [ 1.113056] memalloc_e video_codec_emem: SW build 1000 [ 1.118195] memalloc_e video_codec_emem: linear memory base = 0x60000000 [ 1.124960] memalloc_e video_codec_emem: linear memory size = 327680 MB [ 1.131645] memalloc_e video_codec_emem: chunk size = 4 KB, chunks = 1 configured [ 1.139223] hantro_codec f880125c.video_codec: Video codec clock enabled [ 1.145795] hantro_codec f880125c.video_codec: Video codec reset okay [ 1.152220] chip version: 0xa31 [ 1.155337] VC power control enable [ 1.159009] v4l2_probe [ 1.159019] vsiv4l2 video_codec_v4l2: assigned reserved memory node vcodec@80000000 [ 1.169068] usbcore: registered new interface driver uvcvideo [ 1.174907] Bluetooth: HCI UART driver ver 2.3 [ 1.178955] Bluetooth: HCI UART protocol H4 registered [ 1.212929] spsdc f8003e80.mmc: Got CD GPIO [ 1.307559] mmc0: new DDR MMC card at address 0001 [ 1.308505] mmcblk0: mmc0:0001 88A398 7.28 GiB [ 1.316731] mmcblk0: p1 p2 p3 p4 p5 p6 p7 p8 p9 [ 1.317552] mmcblk0boot0: mmc0:0001 88A398 4.00 MiB [ 1.318263] mmcblk0boot1: mmc0:0001 88A398 4.00 MiB [ 1.320511] mmcblk0rpmb: mmc0:0001 88A398 4.00 MiB, chardev (238:0) [ 1.432903] mmc1: new ultra high speed SDR25 SDHC card at address 0001 [ 1.433712] mmcblk1: mmc1:0001 SD16G 14.5 GiB [ 1.435449] mmcblk1: p1 [ 1.438041] SMCCC: SOC_ID: ID = jep106:0d48:0a31 Revision = 0x00000000 [ 1.442589] usbcore: registered new interface driver usbhid [ 1.447196] usbhid: USB HID core driver [ 1.451211] remoteproc remoteproc0: f800817c.remoteproc is available [ 1.458730] hw perfevents: enabled with armv8_cortex_a55 PMU driver, 7 counters available [ 1.466172] optee: probing for conduit method. [ 1.469943] optee: revision 3.13 (df36975c) [ 1.470226] optee: initialized driver [ 1.477948] usbcore: registered new interface driver snd-usb-audio [ 1.484399] sunplus-audio f8800480.audio: sunplus_audio_probe [ 1.489658] sunplus-audio f8800480.audio: sunplus_i2s_register [ 1.495466] sunplus-audio f8800480.audio: sunplus_tdm_register [ 1.501409] aud-codec aud-codec: aud_codec_probe [ 1.505539] mmc2: error -110 whilst initialising SDIO card [ 1.506186] spsoc-pcm-driver spsoc-pcm-driver: snd_spsoc_pcm_probe [ 1.518381] snd_spsoc_audio_init, create soc_card [ 1.522221] soc-audio soc-audio: ASoC: machine sp-aud should use snd_soc_register_card() [ 1.530633] debugfs: Directory 'f8800480.audio' with parent 'sp-aud' already present! [ 1.539041] NET: Registered PF_INET6 protocol family [ 1.543459] Segment Routing with IPv6 [ 1.546674] In-situ OAM (IOAM) with IPv6 [ 1.550586] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver [ 1.556097] mmc2: Failed to initialize a non-removable card [ 1.556713] NET: Registered PF_PACKET protocol family [ 1.567099] Bluetooth: RFCOMM TTY layer initialized [ 1.571914] Bluetooth: RFCOMM socket layer initialized [ 1.577036] Bluetooth: RFCOMM ver 1.11 [ 1.580765] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 1.586059] Bluetooth: BNEP filters: protocol multicast [ 1.591265] Bluetooth: BNEP socket layer initialized [ 1.596212] Bluetooth: HIDP (Human Interface Emulation) ver 1.2 [ 1.602116] Bluetooth: HIDP socket layer initialized [ 1.607104] Key type dns_resolver registered [ 1.611322] Key type ceph registered [ 1.614947] libceph: loaded (mon/osd proto 15/24) [ 1.624181] registered taskstats version 1 [ 1.624292] Loading compiled-in X.509 certificates [ 1.637979] usb 2.0 phy registered [ 1.639073] sp7350-drm display-subsystem: assigned reserved memory node disp_reserve@5c000000 [ 1.640458] sp7350-drm display-subsystem: bound f8005c80.crtc0 (ops 0xffffffc080dd7330) [ 1.678313] sp7350-drm display-subsystem: bound f8006600.mipi-dsi (ops 0xffffffc080dd9c10) [ 1.680061] [drm] Initialized sp7350-drm 1.0.0 20240828 for display-subsystem on minor 0 [ 1.683923] sp7350-drm display-subsystem: [drm] Cannot find any crtc or sizes [ 1.691640] stmmaceth f8103000.stmmac: User ID: 0x10, Synopsys ID: 0x37 [ 1.692035] sp7350-drm display-subsystem: [drm] Cannot find any crtc or sizes [ 1.697211] stmmaceth f8103000.stmmac: DWMAC1000 [ 1.708985] stmmaceth f8103000.stmmac: DMA HW capability register supported [ 1.715931] stmmaceth f8103000.stmmac: RX Checksum Offload Engine supported [ 1.722869] stmmaceth f8103000.stmmac: COE Type 2 [ 1.727555] stmmaceth f8103000.stmmac: TX Checksum insertion supported [ 1.734065] stmmaceth f8103000.stmmac: Wake-Up On Lan supported [ 1.740003] stmmaceth f8103000.stmmac: Normal descriptors [ 1.745352] stmmaceth f8103000.stmmac: Ring mode enabled [ 1.750645] stmmaceth f8103000.stmmac: Enable RX Mitigation via HW Watchdog Timer [ 1.957484] phy phy-f8004a80.uphy.1: phy_power_on was called before phy_init [ 2.445254] phy phy-f8004a80.uphy.1: phy_power_on was called before phy_init [ 2.445466] ehci0-sunplus f8102100.usb: Generic Platform EHCI Controller [ 2.447877] ehci0-sunplus f8102100.usb: new USB bus registered, assigned bus number 1 [ 2.455701] ehci0-sunplus f8102100.usb: irq 37, io mem 0xf8102100 [ 2.467843] ehci0-sunplus f8102100.usb: USB 2.0 started, EHCI 1.10 [ 2.469063] hub 1-0:1.0: USB hub found [ 2.471691] hub 1-0:1.0: 1 port detected [ 2.476385] phy phy-f8004a80.uphy.1: phy_power_on was called before phy_init [ 2.482621] ohci0-sunplus f8102080.usb: Generic Platform OHCI Controller [ 2.489229] ohci0-sunplus f8102080.usb: new USB bus registered, assigned bus number 2 [ 2.497108] ohci0-sunplus f8102080.usb: irq 39, io mem 0xf8102080 [ 2.557870] hub 2-0:1.0: USB hub found [ 2.557996] hub 2-0:1.0: 1 port detected [ 2.558815] sp_udc_probe start, port_num:0, ffffff8001d32000 [ 2.560050] phy phy-f8004a80.uphy.1: phy_power_on was called before phy_init [ 2.589333] cfg80211: Loading compiled-in X.509 certificates for regulatory database [ 2.590605] Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7' [ 2.592097] Loaded X.509 cert 'wens: 61c038651aabdcf94bd0ac7ff06c7248db18c600' [ 2.598763] clk: Disabling unused clocks [ 2.602679] [dhd] _dhd_module_init: in Dongle Host Driver, version 101.10.591.68.33 (20240829-2)(429fcb0) [ 2.602679] drivers/net/wireless/bcmdhd compiled on Sep 26 2024 at 18:43:02 [ 2.602679] [ 2.620609] [dhd] STATIC-MSG) dhd_static_buf_init : 101.10.361.36 (wlan=r892223-20231107-1) [ 2.628978] [dhd] STATIC-MSG) dhd_init_wlan_mem : prealloc ok for index 0: 1102848(1077K) [ 2.637167] [dhd] no wifi platform data, skip [ 2.641437] [dhd] dhd_wifi_platform_load: Enter [ 2.645951] [dhd] DHD wifi platform data is required for Android build [ 2.652460] [dhd] DHD registering bus directly [ 2.656887] [dhd] bcmsdh_register: register client driver [ 2.662301] [dhd] _dhd_module_init: Exit err=0 [ 2.666698] ALSA device list: [ 2.669647] #0: SP7350, Sunplus Technology Inc. [ 2.674448] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2 [ 2.682936] platform regulatory.0: Falling back to sysfs fallback for: regulatory.db [ 2.704445] VFS: Mounted root (squashfs filesystem) readonly on device 259:0. [ 2.705226] devtmpfs: mounted [ 2.705928] Freeing unused kernel memory: 2752K [ 2.707907] Run /sbin/init as init process [ 2.783096] EXT4-fs (mmcblk0p9): recovery complete [ 2.783861] EXT4-fs (mmcblk0p9): mounted filesystem ef988f4b-2938-4795-86fb-cfa7d71210a9 r/w with ordered data mode. Quota mode: disabled. [ 2.804260] overlayfs: "xino" feature enabled using 32 upper inode bits. /etc/init.d/rcS starts... Mounting other filesystems ... rc.extra [bg] extra done Boot CM4 firmware by remoteproc [ 3.070870] remoteproc remoteproc0: powering up f800817c.remoteproc [ 3.083053] remoteproc remoteproc0: Booting fw image firmware, size 244336 [ 3.084136] virtio_rpmsg_bus virtio0: rpmsg host is online [ 3.084227] rproc-virtio rproc-virtio.1.auto: registered virtio0 (type 7) [ 3.091016] remoteproc remoteproc0: remote processor f800817c.remoteproc is now up [ 3.101857] virtio_rpmsg_bus virtio0: creating channel rpmsg-tty-raw addr 0x0 [ 3.105790] virtio_rpmsg_bus virtio0: creating channel rpmsg-tty-raw addr 0x1 [ 3.112834] virtio_rpmsg_bus virtio0: creating channel rpmsg-tty-raw addr 0x2 End of /etc/init.d/rcS login[127]: root login on 'console' ~ # df -hT Filesystem Type Size Used Available Use% Mounted on overlay overlay 6.8G 80.0K 6.6G 0% / devtmpfs devtmpfs 1.3G 0 1.3G 0% /dev tmpfs tmpfs 1.7G 0 1.7G 0% /dev/shm tmpfs tmpfs 1.7G 0 1.7G 0% /tmp ~ #