MEMORY_START

Physical memory start address

Tweak this only when porting to a new machine which does not
already have a defconfig. Changing it from the known correct
value on any of the known systems will only lead to disaster.

MEMORY_SIZE

Physical memory size

This sets the default memory size assumed by your kernel. It can
be overridden as normal by the 'mem=' argument on the kernel command
line.

Menu: Timer and clock configuration

SHMOBILE_TIMER_HZ

Kernel HZ (jiffies per second)

Allows the configuration of the timer frequency. It is customary
to have the timer interrupt run at 1000 Hz or 100 Hz, but in the
case of low timer frequencies other values may be more suitable.
SH-Mobile systems using a 32768 Hz RCLK for clock events may want
to select a HZ value such as 128 that can evenly divide RCLK.
A HZ value that does not divide evenly may cause timer drift.

SH_TIMER_CMT

CMT timer driver

This enables build of the CMT timer driver.

SH_TIMER_TMU

TMU timer driver

This enables build of the TMU timer driver.