forked from Minki/linux
017cecee99
On m68k, get_cycles() (the default implementation for random_get_entropy())
always returns zero, providing no entropy for the random driver.
Add a hook where platforms can provide their own implementation, and wire
it up in the infrastructure provided by commit
61875f30da ("random: allow architectures to
optionally define random_get_entropy()").
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
42 lines
907 B
C
42 lines
907 B
C
/*
|
|
* linux/include/asm-m68k/timex.h
|
|
*
|
|
* m68k architecture timex specifications
|
|
*/
|
|
#ifndef _ASMm68K_TIMEX_H
|
|
#define _ASMm68K_TIMEX_H
|
|
|
|
#ifdef CONFIG_COLDFIRE
|
|
/*
|
|
* CLOCK_TICK_RATE should give the underlying frequency of the tick timer
|
|
* to make ntp work best. For Coldfires, that's the main clock.
|
|
*/
|
|
#include <asm/coldfire.h>
|
|
#define CLOCK_TICK_RATE MCF_CLK
|
|
#else
|
|
/*
|
|
* This default CLOCK_TICK_RATE is probably wrong for many 68k boards
|
|
* Users of those boards will need to check and modify accordingly
|
|
*/
|
|
#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
|
|
#endif
|
|
|
|
typedef unsigned long cycles_t;
|
|
|
|
static inline cycles_t get_cycles(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
extern unsigned long (*mach_random_get_entropy)(void);
|
|
|
|
static inline unsigned long random_get_entropy(void)
|
|
{
|
|
if (mach_random_get_entropy)
|
|
return mach_random_get_entropy();
|
|
return 0;
|
|
}
|
|
#define random_get_entropy random_get_entropy
|
|
|
|
#endif
|