Merge tag 'ti-keystone-soc-for-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/ti/linux into arm/soc

ARM: keystone: TI Updates for v6.2

Updates:
* Switch over to standard PSCI for keystone2 platforms.

* tag 'ti-keystone-soc-for-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/ti/linux:
  ARM: keystone: Replace platform SMP with PSCI

Link: https://lore.kernel.org/r/20221122185650.nrh7s2g5obndj5vj@dental
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

5 files changed, 1 insertions, 77 deletions

diff --git a/arch/arm/mach-keystone/Makefile b/arch/arm/mach-keystone/Makefile
index 739b38be5696..0c1d54aec60f 100644
--- a/arch/arm/mach-keystone/Makefile
+++ b/arch/arm/mach-keystone/Makefile
@@ -1,7 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
-obj-y					:= keystone.o smc.o
-
-obj-$(CONFIG_SMP)			+= platsmp.o
+obj-y					:= keystone.o
 
 # PM domain driver for Keystone SOCs
 obj-$(CONFIG_ARCH_KEYSTONE)		+= pm_domain.o
diff --git a/arch/arm/mach-keystone/keystone.c b/arch/arm/mach-keystone/keystone.c
index 2c647bdf8d25..aa352c2de313 100644
--- a/arch/arm/mach-keystone/keystone.c
+++ b/arch/arm/mach-keystone/keystone.c
@@ -18,7 +18,6 @@
 #include <asm/mach/map.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/time.h>
-#include <asm/smp_plat.h>
 #include <asm/memory.h>
 
 #include "memory.h"
@@ -103,7 +102,6 @@ DT_MACHINE_START(KEYSTONE, "Keystone")
 #if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
 	.dma_zone_size	= SZ_2G,
 #endif
-	.smp		= smp_ops(keystone_smp_ops),
 	.init_machine	= keystone_init,
 	.dt_compat	= keystone_match,
 	.pv_fixup	= keystone_pv_fixup,
diff --git a/arch/arm/mach-keystone/keystone.h b/arch/arm/mach-keystone/keystone.h
index 438e531cc007..71ff8cd2ee4a 100644
--- a/arch/arm/mach-keystone/keystone.h
+++ b/arch/arm/mach-keystone/keystone.h
@@ -8,13 +8,8 @@
 #ifndef __KEYSTONE_H__
 #define __KEYSTONE_H__
 
-#define KEYSTONE_MON_CPU_UP_IDX		0x00
-
 #ifndef __ASSEMBLER__
 
-extern const struct smp_operations keystone_smp_ops;
-extern void secondary_startup(void);
-extern u32 keystone_cpu_smc(u32 command, u32 cpu, u32 addr);
 extern int keystone_pm_runtime_init(void);
 
 #endif /* __ASSEMBLER__ */
diff --git a/arch/arm/mach-keystone/platsmp.c b/arch/arm/mach-keystone/platsmp.c
deleted file mode 100644
index 673fcf3b34b1..000000000000
--- a/arch/arm/mach-keystone/platsmp.c
+++ /dev/null
@@ -1,41 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Keystone SOC SMP platform code
- *
- * Copyright 2013 Texas Instruments, Inc.
- *	Cyril Chemparathy <cyril@ti.com>
- *	Santosh Shilimkar <santosh.shillimkar@ti.com>
- *
- * Based on platsmp.c, Copyright (C) 2002 ARM Ltd.
- */
-
-#include <linux/init.h>
-#include <linux/smp.h>
-#include <linux/io.h>
-#include <linux/pgtable.h>
-
-#include <asm/smp_plat.h>
-#include <asm/prom.h>
-#include <asm/tlbflush.h>
-
-#include "keystone.h"
-
-static int keystone_smp_boot_secondary(unsigned int cpu,
-						struct task_struct *idle)
-{
-	unsigned long start = virt_to_idmap(&secondary_startup);
-	int error;
-
-	pr_debug("keystone-smp: booting cpu %d, vector %08lx\n",
-		 cpu, start);
-
-	error = keystone_cpu_smc(KEYSTONE_MON_CPU_UP_IDX, cpu, start);
-	if (error)
-		pr_err("CPU %d bringup failed with %d\n", cpu, error);
-
-	return error;
-}
-
-const struct smp_operations keystone_smp_ops __initconst = {
-	.smp_boot_secondary	= keystone_smp_boot_secondary,
-};
diff --git a/arch/arm/mach-keystone/smc.S b/arch/arm/mach-keystone/smc.S
deleted file mode 100644
index 21ef75cf5370..000000000000
--- a/arch/arm/mach-keystone/smc.S
+++ /dev/null
@@ -1,26 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Keystone Secure APIs
- *
- * Copyright (C) 2013 Texas Instruments, Inc.
- * 	Santosh Shilimkar <santosh.shilimkar@ti.com>
- */
-
-#include <linux/linkage.h>
-
-/**
- * u32 keystone_cpu_smc(u32 command, u32 cpu, u32 addr)
- *
- * Low level CPU monitor API
- * @command:	Monitor command.
- * @cpu:	CPU Number
- * @addr:	Kernel jump address for boot CPU
- *
- * Return: Non zero value on failure
- */
-	.arch_extension sec
-ENTRY(keystone_cpu_smc)
-	stmfd   sp!, {r4-r11, lr}
-	smc	#0
-	ldmfd   sp!, {r4-r11, pc}
-ENDPROC(keystone_cpu_smc)