MIPS: Allow FTLB to be turned on for CPU_P5600
Allow FTLB to be turned on or off for CPU_P5600 as well as CPU_PROAPTIV.
The existing if statement is converted into a switch to allow for future
expansion.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Reviewed-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6411/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 0b9bbcb..ee5de36 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -181,11 +181,12 @@
static void set_ftlb_enable(struct cpuinfo_mips *c, int enable)
{
unsigned int config6;
- /*
- * Config6 is implementation dependent and it's currently only
- * used by proAptiv
- */
- if (c->cputype == CPU_PROAPTIV) {
+
+ /* It's implementation dependent how the FTLB can be enabled */
+ switch (c->cputype) {
+ case CPU_PROAPTIV:
+ case CPU_P5600:
+ /* proAptiv & related cores use Config6 to enable the FTLB */
config6 = read_c0_config6();
if (enable)
/* Enable FTLB */
@@ -194,6 +195,7 @@
/* Disable FTLB */
write_c0_config6(config6 & ~MIPS_CONF6_FTLBEN);
back_to_back_c0_hazard();
+ break;
}
}