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| author | Kevin Cernekee <cernekee@gmail.com> | 2014-10-20 21:27:58 -0700 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2014-11-24 07:45:11 +0100 |
| commit | bbf2ba67cdbdb3676a661c3eba5572d1e513627f (patch) | |
| tree | 92cdfa8bfd348cacb28b4cd70117afe5d762ec8d /arch/mips/Kconfig | |
| parent | a7ef1eaddbf4bd50bfee92d9dfbecadc61467bbf (diff) | |
| download | lwn-bbf2ba67cdbdb3676a661c3eba5572d1e513627f.tar.gz lwn-bbf2ba67cdbdb3676a661c3eba5572d1e513627f.zip | |
MIPS: BMIPS: Select the appropriate L1_CACHE_SHIFT for 438x and 5000 CPUs
BMIPS438x has a 64-byte D$ line size and BMIPS5000 has a 128-byte L2
line size. If L1_CACHE_SHIFT is undersized, DMA buffers will not be
cacheline-aligned and terrible things will happen.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Cc: f.fainelli@gmail.com
Cc: mbizon@freebox.fr
Cc: jogo@openwrt.org
Cc: jfraser@broadcom.com
Cc: linux-mips@linux-mips.org
Cc: devicetree@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/8164/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/Kconfig')
| -rw-r--r-- | arch/mips/Kconfig | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 992f98361e5a..002cf4c56ebf 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -1587,12 +1587,14 @@ config CPU_BMIPS4350 config CPU_BMIPS4380 bool + select MIPS_L1_CACHE_SHIFT_6 select SYS_SUPPORTS_SMP select SYS_SUPPORTS_HOTPLUG_CPU config CPU_BMIPS5000 bool select MIPS_CPU_SCACHE + select MIPS_L1_CACHE_SHIFT_7 select SYS_SUPPORTS_SMP select SYS_SUPPORTS_HOTPLUG_CPU |