diff options
Diffstat (limited to 'src/arch')
| -rw-r--r-- | src/arch/armv7/lib/cache.c | 33 |
1 files changed, 30 insertions, 3 deletions
diff --git a/src/arch/armv7/lib/cache.c b/src/arch/armv7/lib/cache.c index de772a12b5..7bb337dd41 100644 --- a/src/arch/armv7/lib/cache.c +++ b/src/arch/armv7/lib/cache.c @@ -209,13 +209,40 @@ void dcache_clean_invalidate_by_mva(unsigned long addr, unsigned long len) dcache_op_mva(addr, len, OP_DCCIMVAC); } - void dcache_mmu_disable(void) { - uint32_t sctlr; + uint32_t sctlr, clidr; + int level; + + clidr = read_clidr(); + for (level = 0; level < 7; level++) { + unsigned int ctype = (clidr >> (level * 3)) & 0x7; + uint32_t csselr; + + switch(ctype) { + case 0x0: + /* no cache */ + break; + case 0x2: + case 0x4: + /* dcache only or unified cache */ + csselr = level << 1; + write_csselr(csselr); + dcache_clean_invalidate_all(); + break; + case 0x3: + /* separate icache and dcache */ + csselr = level << 1; + write_csselr(csselr); + dcache_clean_invalidate_all(); + break; + default: + /* reserved */ + break; + } + } sctlr = read_sctlr(); - dcache_clean_invalidate_all(); sctlr &= ~(SCTLR_C | SCTLR_M); write_sctlr(sctlr); } |