################################################################################# # Helper script: /load_kernel_modules.scr/platform/arm/tegra20 # Purpose......: Set the Kernel modules for Hardware Models that use the NVIDIA # Tegra20 SoC within the Slackware initial RAM disk ('OS initrd') # and the Slackware installer. # Currently supported Hardware Models: # * Compulab Trimslice Pro. # This script is sourced from '/load_kernel_modules' # Author.......: Stuart Winter # Date.........: 30-Mar-2021 # Maintainer...: Stuart Winter # # Please use this as an example of how to add support for # a new SoC to Slackware AArch64. # # Important Note: # * You must _append_ to the module lists (include the variable # name within the variable itself), otherwise the base # set of modules will not be loaded and would result in # a Kernel panic. # * The initrd uses the 'bash' shell, rather than 'busybox' # (as in upstream/x86 Slackware). This allows you (for example) # to use 'fallthrough' (case statements terminated with ';&' # rather than ';;') within case statements and regular expression # matches within 'if' statements. # This permits the 'c'-style switch statements where you can # 'inherit' the previous matches as you move down the cases. # This enables you to match on varients of boards, and inherit # a 'baseline' of platform modules for that board. # # The 'PLATWALK' match is to enable build scripts to process these # scripts outside of the initrd environment and determine which # modules will be loaded by a particular Hardware Model. This must remain # in place for all scripts. ################################################################################# case $HWM in *"Trimslice"*|PLATWALK) platform_detected=1 echo "Architecture: ${ARCH}, Hardware model: ${HWM}" # If one of the modules within the base list is causing problems on # your platform, here are the options laid out as examples: # USB="${USB/ehci_orion/differentmodule}" # Substitute module 'ehci_orion' with 'differentmodule' # USB="${USB/ehci_orion/}" # Remove the 'ehci_orion' module from the list MOD_GPIO+=" " MOD_PHY+=" phy-tegra-usb ehci_tegra" MOD_VIDEO+=" " MOD_CARDS+=" " MOD_USB+=" " MOD_NET+=" r8169" MOD_CMP+=" " MOD_CRYPTO+=" " # Example to detect hardware at runtime: #{ lspci 2>/dev/null | grep -q 'SATA cont.*ATA' ;} && MOD_XX="$MOD_XX yyy" # The following modules do not inherit: MOD_RTC="rtc-em3027" # Modules for the peripherals on the Hardware Model's main board # (outside of the SoC itself) MOD_HWM="" # Modules for the IP blocks/peripherals embedded within the SoC: MOD_SOC="i2c-tegra spi-tegra";; esac # The '/load_kernel_modules' script will load the modules # set above.