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docs: arm: tcm: Fix a few typos
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
authored by
Jonathan Neuschäfer
and committed by
Jonathan Corbet
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Documentation/arm/tcm.rst
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Documentation/arm/tcm.rst
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Written by Linus Walleij <linus.walleij@stericsson.com>
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Some ARM SoC:s have a so-called TCM (Tightly-Coupled Memory).
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Some ARM SoCs have a so-called TCM (Tightly-Coupled Memory).
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This is usually just a few (4-64) KiB of RAM inside the ARM
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processor.
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Due to being embedded inside the CPU The TCM has a
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Due to being embedded inside the CPU, the TCM has a
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Harvard-architecture, so there is an ITCM (instruction TCM)
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and a DTCM (data TCM). The DTCM can not contain any
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instructions, but the ITCM can actually contain data.
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The size of DTCM or ITCM is minimum 4KiB so the typical
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minimum configuration is 4KiB ITCM and 4KiB DTCM.
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ARM CPU:s have special registers to read out status, physical
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ARM CPUs have special registers to read out status, physical
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location and size of TCM memories. arch/arm/include/asm/cputype.h
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defines a CPUID_TCM register that you can read out from the
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system control coprocessor. Documentation from ARM can be found