Lines Matching +full:kernel +full:- +full:family
1 # SPDX-License-Identifier: GPL-2.0
5 prompt "CPU family support"
9 The Freescale (was Motorola) M68K family of processors implements
11 The Freescale ColdFire family of processors is a modern derivative
12 of the 68000 processor family. They are mainly targeted at embedded
13 applications, and are all System-On-Chip (SOC) devices, as opposed
16 If you anticipate running this kernel on a computer with a classic
18 If you anticipate running this kernel on a computer with a ColdFire
22 bool "Classic M68K CPU family support"
26 bool "Coldfire CPU family support"
53 the well known M68K family of processors. The CPU core as well as
55 System-On-Chip devices (eg 68328, 68302, etc). It does not contain
64 If you anticipate running this kernel on a computer with a MC68020
75 If you anticipate running this kernel on a computer with a MC68030
85 If you anticipate running this kernel on a computer with a MC68LC040
96 If you anticipate running this kernel on a computer with a MC68060
128 Select the type of ColdFire System-on-Chip (SoC) that you want
330 At some point in the future, this will cause floating-point math
331 instructions to be emulated by the kernel on machines that lack a
332 floating-point math coprocessor. Thrill-seekers and chronically
333 sleep-deprived psychotic hacker types can say Y now, everyone else
348 bool "Math emulation only kernel"
351 This option prevents any floating-point instructions from being
352 compiled into the kernel, thereby the kernel doesn't save any
354 kernel will only be usable on machines without a floating-point
355 math coprocessor. This makes the kernel a bit faster as no tests
356 needs to be executed whether a floating-point instruction in the
357 kernel should be executed or not.
369 kernel: saying N will just cause the configurator to skip all
375 bool "Use read-modify-write instructions"
379 read-modify-write bus cycles. While this is faster than the
384 configuration where it should work are 68030-based Ataris, where it
395 purposes. This will save a few bytes kernel size and may speed up
406 The kernel page allocator limits the size of maximal physically
420 bool "Use write-through caching for 68060 supervisor accesses"
424 Copyback caching means that memory writes will be held in an on-chip
426 here will force supervisor (kernel) accesses to use writethrough
490 use internal dividers. In general the kernel won't setup a PLL
530 bool "Write-through"
532 The ColdFire CPU cache is set into Write-through mode.
535 bool "Copy-back"
537 The ColdFire CPU cache is set into Copy-back mode.