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Diffstat (limited to 'arch/arm/mach-tango/platsmp.c')
-rw-r--r--arch/arm/mach-tango/platsmp.c52
1 files changed, 0 insertions, 52 deletions
diff --git a/arch/arm/mach-tango/platsmp.c b/arch/arm/mach-tango/platsmp.c
deleted file mode 100644
index 65012afbc1a3..000000000000
--- a/arch/arm/mach-tango/platsmp.c
+++ /dev/null
@@ -1,52 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/smp.h>
-#include "smc.h"
-
-static int tango_boot_secondary(unsigned int cpu, struct task_struct *idle)
-{
- tango_set_aux_boot_addr(__pa_symbol(secondary_startup));
- tango_start_aux_core(cpu);
- return 0;
-}
-
-#ifdef CONFIG_HOTPLUG_CPU
-/*
- * cpu_kill() and cpu_die() run concurrently on different cores.
- * Firmware will only "kill" a core once it has properly "died".
- * Try a few times to kill a core before giving up, and sleep
- * between tries to give that core enough time to die.
- */
-static int tango_cpu_kill(unsigned int cpu)
-{
- int i, err;
-
- for (i = 0; i < 10; ++i) {
- msleep(10);
- err = tango_aux_core_kill(cpu);
- if (!err)
- return true;
- }
-
- return false;
-}
-
-static void tango_cpu_die(unsigned int cpu)
-{
- while (tango_aux_core_die(cpu) < 0)
- cpu_relax();
-
- panic("cpu %d failed to die\n", cpu);
-}
-#endif
-
-static const struct smp_operations tango_smp_ops __initconst = {
- .smp_boot_secondary = tango_boot_secondary,
-#ifdef CONFIG_HOTPLUG_CPU
- .cpu_kill = tango_cpu_kill,
- .cpu_die = tango_cpu_die,
-#endif
-};
-
-CPU_METHOD_OF_DECLARE(tango4_smp, "sigma,tango4-smp", &tango_smp_ops);