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add overclocking options

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asb committed Sep 17, 2012
1 parent f3452fd commit c5e1966418922862b2a84559c567c35e6a1c4c28
Showing with 49 additions and 0 deletions.
  1. +49 −0 raspi-config
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@@ -175,6 +175,54 @@ set_memory_split() {
sync
}
do_overclock() {
whiptail --msgbox "\
Be aware that overclocking may reduce the lifetime of your
Raspberry Pi. If overclocking at a certain level causes
system instability, try a more modest overclock. See
http://elinux.org/RPi_Overclocking for more information.\
" 20 70 1
OVERCLOCK=$(whiptail --menu "Chose overclock preset" 20 60 10 \
"None" "700MHz ARM, 250MHz core, 400MHz SDRAM, 0 overvolt" \
"Modest" "800MHz ARM, 300MHz core, 400MHz SDRAM, 0 overvolt" \
"Medium" "900MHz ARM, 333MHz core, 450MHz SDRAM, 2 overvolt" \
"High" "950MHz ARM, 450MHz core, 450MHz SDRAM, 6 overvolt" \
"Turbo" "1000MHz ARM, 500MHz core, 500MHz SDRAM, 6 overvolt" \
3>&1 1>&2 2>&3)
if [ $? -eq 0 ]; then
case "$OVERCLOCK" in
None)
set_overclock None 700 250 400 0
;;
Modest)
set_overclock Modest 800 300 400 0
;;
Medium)
set_overclock Medium 900 333 450 2
;;
High)
set_overclock High 950 450 450 6
;;
Turbo)
set_overclock Turbo 1000 500 500 6
;;
*)
whiptail --msgbox "Programmer error, unrecognised overclock preset" 20 60 2
return 1
;;
esac
ASK_TO_REBOOT=1
fi
}
set_overclock() {
set_config_var arm_freq $2 /boot/config.txt &&
set_config_var core_freq $3 /boot/config.txt &&
set_config_var sdram_freq $4 /boot/config.txt &&
set_config_var over_voltage $5 /boot/config.txt &&
whiptail --msgbox "Set overclock to preset '$1'" 20 60 2
}
do_ssh() {
if [ -e /var/log/regen_ssh_keys.log ] && ! grep -q "^finished" /var/log/regen_ssh_keys.log; then
whiptail --msgbox "Initial ssh key generation still running. Please wait and try again." 20 60 2
@@ -286,6 +334,7 @@ while true; do
"change_locale" "Set locale" \
"change_timezone" "Set timezone" \
"memory_split" "Change memory split" \
"overclock" "Configure overclocking" \
"ssh" "Enable or disable ssh server" \
"boot_behaviour" "Start desktop on boot?" \
"update" "Try to upgrade raspi-config" \

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