sudo cat /sys/kernel/debug/clk/clk_summary|grep clk_npu_dsu0# 实机运行如下(npu当前的频率为750MHz)cat@lubancat:~$ sudo cat /sys/kernel/debug/clk/clk_summary|grep clk_npu_dsu0 clk_npu_dsu00307500000000050000cat@lubancat:~$ 查看DDR频率 ...
userspace > /sys/class/devfreq/fde40000.npu/governor # 设置频率 echo 900000000 > /sys/kernel/debug/clk/clk_scmi_npu/clk_rate # 查看当前npu频率 cat /sys/class/devfreq/fde40000.npu/cur_freq cat /sys/kernel/debug/clk/clk_summary |
More recently, U-Boot has added the Kbuild infrastructure used by the Linux kernel, allowing you to use the "make menuconfig" command to configure your build. Selection of Processor Architecture and Board Type: --- For all supported boards there are ready-to-use default configurations available...
7,1581,6064017,-;SELinux: initialized (dev mmcblk0p14, type vfat), uses mountpoint labeling 13,1582,6066657,-;init: write_file: Unable to open '/sys/kernel/debug/tracing/tracing_on': No such file or directory 13,1583,6067824,-;init: Starting service 'logd'... 13,1584,6077834,-;i...
Now booting the IOS XE kernel %IOSXEBOOT-4-BOOT_PARAMETER: (rp/0): Booting with custom BOOT_PARAM setting %IOSXEBOOT-4-BOOT_PARAMETER: (rp/0): Hardware watchdog timer disabled in ROMMON %IOSXEBOOT-4-DEBUG_CONF: (rp/0): Using DEBUG_CONF file /misc/scratch/debug.conf Feb 13...
sys/net/ipv6/conf/rmnet_usb2/accept_ra': No such file or directory 13,1663,7556241,-;init: write_file: Unable to open '/proc/sys/net/ipv6/conf/rmnet_usb3/accept_ra': No such file or directory 11,1664,7559125,-;init: SELinux: Could not get canonical path for /sys/block/sda/...
系统中注册的regulator和consumer之间关系或者regulator之间的关系,可以查看下/sys/kernel/debug/regulator/regulator_summary文件,下面图片显示了IO 电源域和regulator之间的关系:9.4. 实验 下面我们简单编写一个驱动,向内核注册一个regulators,电压范围为500000µV到1350000µV。 配套源码和设备树插件位于linux_driver/powe...
# 编译kerneldeb文件./build.sh kerneldeb# 编译extboot分区./build.sh extboot 编译生成的设备树文件和设备树源文件在同一目录下,如LubanCat-2板卡, 其设备树源文件是arch/arm64/boot/dts/rockchip/rk3568-lubancat-2.dts, 编译后生成的设备树文件是arch/arm64/boot/dts/rockchip/rk3568-luban...
修改设备树插件上的时钟频率,kernel/arch/arm64/boot/dts/rockchip/overlay/rk3568-lubancat-canfdX-mY-overlay.dts(X,Y是各自的数字) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 /dts-v1/;/plugin/;#include <dt-bindings/clock/rk3568-cru.h>/{compatible="rockchip,rk356...
*/ debug("Ram size: %08lX\n", (ulong)gd->ram_size); #if defined(CONFIG_SYS_MEM_TOP_HIDE) /* * Subtract specified amount of memory to hide so that it won't * get "touched" at all by U-Boot. By fixing up gd->ram_size * the Linux kernel should now get ...