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| author | Markos Chandras <markos.chandras@imgtec.com> | 2015-07-09 11:40:43 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2015-08-26 15:23:11 +0200 |
| commit | c014d164f21dbdbe721a4ec7e5147591c4eed545 (patch) | |
| tree | 99389898aa1936b53495dd32cffa5fef0ea99c18 /arch/mips/mm/sc-mips.c | |
| parent | MIPS: CM3: Add support for CM3 L2 cache. (diff) | |
| download | linux-c014d164f21dbdbe721a4ec7e5147591c4eed545.tar.xz linux-c014d164f21dbdbe721a4ec7e5147591c4eed545.zip | |
MIPS: Add platform callback before initializing the L2 cache
Allow platforms to perform platform-specific steps before configuring
the L2 cache. This is necessary for platforms with CM3 since the L2
parameters no longer live in the Config2 register.
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10642/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/mm/sc-mips.c')
| -rw-r--r-- | arch/mips/mm/sc-mips.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/mips/mm/sc-mips.c b/arch/mips/mm/sc-mips.c index 5fa452e8cff9..53ea8391f9bb 100644 --- a/arch/mips/mm/sc-mips.c +++ b/arch/mips/mm/sc-mips.c @@ -123,6 +123,10 @@ static int __init mips_sc_probe_cm3(void) return 1; } +void __weak platform_early_l2_init(void) +{ +} + static inline int __init mips_sc_probe(void) { struct cpuinfo_mips *c = ¤t_cpu_data; @@ -132,6 +136,12 @@ static inline int __init mips_sc_probe(void) /* Mark as not present until probe completed */ c->scache.flags |= MIPS_CACHE_NOT_PRESENT; + /* + * Do we need some platform specific probing before + * we configure L2? + */ + platform_early_l2_init(); + if (mips_cm_revision() >= CM_REV_CM3) return mips_sc_probe_cm3(); |