arch/arm/cpu/cpu.c File Reference

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Detailed Description

Functions
int	icache_status (void)
int	cleanup_before_linux (void)

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Define Documentation

#define C1_ALIGN   (1<<1)

alignment faults off/on

#define C1_BIG_ENDIAN   (1<<7)

big endian off/on

#define C1_DC   (1<<2)

dcache off/on

#define C1_HIGH_VECTORS   (1<<13)

location of vectors: low/high addresses

#define C1_IC   (1<<12)

icache off/on

Referenced by icache_disable(), icache_enable(), and icache_status().

#define C1_MMU   (1<<0)

mmu off/on

#define C1_ROM_PROT   (1<<9)

ROM protection.

#define C1_SYS_PROT   (1<<8)

system protection

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Function Documentation

int cleanup_before_linux

(

void

)

Prepare a "clean" CPU for Linux to run.

Returns:

0 (always)

This function is called by the generic barebox part just before we call Linux. It prepares the processor for Linux.

void icache_disable

(

void

)

Disable processor's instruction cache.

void icache_enable

(

void

)

Enable processor's instruction cache.

Referenced by cleanup_before_linux().

int icache_status

(

void

)

Detect processor's current instruction cache status.

Returns:

0=disabled, 1=enabled