Files
pmaports-rtwo/device/testing/device-odroid-hc2/uboot-script.cmd
T
knuxify ea85ffe451 device-odroid-hc2: disable big.LITTLE switcher by default
The linux-edge kernel enables the BL_SWITCHER kernel option, which enables
an in-kernel big.LITTLE switcher - with it enabled, only 4 cores are enabled
at a time, and the kernel switches between the big and little cores. However,
in a server workload, it's more likely that a user wants all 8 cores to work
simultaneously.

Disable the switcher by default by providing the no_bL_switcher cmdline option.
It can still be re-enabled by writing 1 to /sys/kernel/bL_switcher/active.

Part-of: https://gitlab.postmarketos.org/postmarketos/pmaports/-/merge_requests/6350
2025-03-26 08:17:44 +01:00

34 lines
1.1 KiB
Batchfile

setenv kernel_addr_r "0x40008000"
setenv initrd_addr_r "0x42000000"
setenv fdt_addr_r "0x44000000"
setenv kernel_image "vmlinuz"
setenv initrd_image "uInitrd"
setenv dtb_file "exynos5422-odroidhc1.dtb"
printenv
echo Setting bootargs
setenv bootargs init=/init.sh rw console=tty0 console=ttySAC2,115200 panic=10 consoleblank=0 loglevel=9 cma=256M initcall_blacklist=exynos_drm_init no_bL_switcher PMOS_FORCE_PARTITION_RESIZE
if test -e mmc ${mmcbootdev}:${mmcbootpart} ${kernel_image}; then
echo Loading Kernel: vmlinuz
load mmc ${mmcbootdev}:${mmcbootpart} ${kernel_addr_r} ${kernel_image};
fi
if test -e mmc ${mmcbootdev}:${mmcbootpart} ${kernel_image}-edge; then
echo Loading Kernel: vmlinuz-edge
load mmc ${mmcbootdev}:${mmcbootpart} ${kernel_addr_r} ${kernel_image}-edge
fi
echo Loading Initramfs
load mmc ${mmcbootdev}:${mmcbootpart} ${initrd_addr_r} ${initrd_image}
echo Loading DTB
load mmc ${mmcbootdev}:${mmcbootpart} ${fdt_addr_r} ${dtb_file}
echo Resizing FDT
fdt addr ${fdt_addr_r}
echo Booting kernel
bootz ${kernel_addr_r} ${initrd_addr_r} ${fdt_addr_r}