diff options
Diffstat (limited to 'cpu/arm926ejs/cpu.c')
| -rw-r--r-- | cpu/arm926ejs/cpu.c | 51 | 
1 files changed, 39 insertions, 12 deletions
| diff --git a/cpu/arm926ejs/cpu.c b/cpu/arm926ejs/cpu.c index 722732e58..56c6289da 100644 --- a/cpu/arm926ejs/cpu.c +++ b/cpu/arm926ejs/cpu.c @@ -134,25 +134,52 @@ int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])  	return (0);  } -void icache_enable (void) +/* cache_bit must be either C1_IC or C1_DC */ +static void cache_enable(uint32_t cache_bit)  { -	ulong reg; +	uint32_t reg; -	reg = read_p15_c1 ();		/* get control reg. */ -	cp_delay (); -	write_p15_c1 (reg | C1_IC); +	reg = read_p15_c1();	/* get control reg. */ +	cp_delay(); +	write_p15_c1(reg | cache_bit);  } -void icache_disable (void) +/* cache_bit must be either C1_IC or C1_DC */ +static void cache_disable(uint32_t cache_bit)  { -	ulong reg; +	uint32_t reg; -	reg = read_p15_c1 (); -	cp_delay (); -	write_p15_c1 (reg & ~C1_IC); +	reg = read_p15_c1(); +	cp_delay(); +	write_p15_c1(reg & ~cache_bit);  } -int icache_status (void) +void icache_enable(void)  { -	return (read_p15_c1 () & C1_IC) != 0; +	cache_enable(C1_IC); +} + +void icache_disable(void) +{ +	cache_disable(C1_IC); +} + +int icache_status(void) +{ +	return (read_p15_c1() & C1_IC) != 0; +} + +void dcache_enable(void) +{ +	cache_enable(C1_DC); +} + +void dcache_disable(void) +{ +	cache_disable(C1_DC); +} + +int dcache_status(void) +{ +	return (read_p15_c1() & C1_DC) != 0;  } |