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arm64: zynqmp: Fix lockstep mode cpu release functionality

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For lockstep mode, cpu_release function is expecting to execute
on R5 core 0, if there is attempt to pass other than R5 core 0,
through an error saying "Lockstep mode should run on R5 core 0 only".

Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
Link: https://lore.kernel.org/r/20230608032152.980-3-venkatesh.abbarapu@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
This commit is contained in:
Venkatesh Yadav Abbarapu
2023-06-12 13:25:02 +02:00
committed by Michal Simek
parent 2eed42c2f1
commit a30ac34ca8
1 changed files with 4 additions and 0 deletions
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arch/arm/mach-zynqmp/mp.c
+4
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@@ -326,6 +326,10 @@ int cpu_release(u32 nr, int argc, char *const argv[])
flush_dcache_all();
if (!strncmp(argv[1], "lockstep", 8)) {
if (nr != ZYNQMP_CORE_RPU0) {
printf("Lockstep mode should run on ZYNQMP_CORE_RPU0\n");
return 1;
}
printf("R5 lockstep mode\n");
set_r5_reset(nr, LOCK);
set_r5_tcm_mode(LOCK);