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author | Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2009-04-05 13:06:31 +0200 |
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committer | Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2009-04-05 13:06:31 +0200 |
commit | b3acb6cd4059dfb29a5e99095d802717f53ff784 (patch) | |
tree | 0578103fde893d08e5b6127db4df18833ae3d075 /cpu/arm1176/cpu.c | |
parent | 677e62f43235de9a1701204d7bcea0fb3d233fa1 (diff) | |
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arm: clean cache management
unify arm cache management except for non standard cache as ARM7TDMI
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Diffstat (limited to 'cpu/arm1176/cpu.c')
-rw-r--r-- | cpu/arm1176/cpu.c | 57 |
1 files changed, 1 insertions, 56 deletions
diff --git a/cpu/arm1176/cpu.c b/cpu/arm1176/cpu.c index ef78bd9..8aefbe3 100644 --- a/cpu/arm1176/cpu.c +++ b/cpu/arm1176/cpu.c @@ -38,15 +38,6 @@ static void cache_flush (void); -static void cp_delay (void) -{ - volatile int i; - - /* Many OMAP regs need at least 2 nops */ - for (i = 0; i < 100; i++) - __asm__ __volatile__("nop\n"); -} - int cpu_init (void) { return 0; @@ -66,6 +57,7 @@ int cleanup_before_linux (void) /* turn off I/D-cache */ icache_disable(); dcache_disable(); + /* flush I/D-cache */ cache_flush(); return 0; @@ -95,53 +87,6 @@ int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) return 0; } -void icache_enable (void) -{ - ulong reg; - - reg = get_cr (); /* get control reg. */ - cp_delay (); - set_cr (reg | CR_I); -} - -void icache_disable (void) -{ - ulong reg; - - reg = get_cr (); - cp_delay (); - set_cr (reg & ~CR_I); -} - -int icache_status (void) -{ - return (get_cr () & CR_I) != 0; -} - -/* It makes no sense to use the dcache if the MMU is not enabled */ -void dcache_enable (void) -{ - ulong reg; - - reg = get_cr (); - cp_delay (); - set_cr (reg | CR_C); -} - -void dcache_disable (void) -{ - ulong reg; - - reg = get_cr (); - cp_delay (); - set_cr (reg & ~CR_C); -} - -int dcache_status (void) -{ - return (get_cr () & CR_C) != 0; -} - /* flush I/D-cache */ static void cache_flush (void) { |