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Commit d83b0e82 authored by James Hogan's avatar James Hogan Committed by Ralf Baechle
Browse files

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: default avatarJames Hogan <james.hogan@imgtec.com>
Reviewed-by: default avatarMarkos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6411/


Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 829dcc0a

arch/mips/kernel/cpu-probe.c

+7 −5
Original line number Diff line number Diff line
@@ -181,11 +181,12 @@ static char unknown_isa[] = KERN_ERR \ 
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 @@ static void set_ftlb_enable(struct cpuinfo_mips *c, int enable) 
			/* Disable FTLB */

			write_c0_config6(config6 &  ~MIPS_CONF6_FTLBEN);

		back_to_back_c0_hazard();

		break;

	}

}