ARM: shmobile: r8a7779: Remove explicit SYSC config and init
If the R-Car H1 system controller is described in DT, the rcar-sysc
driver configures SYSCIER and SYSCIMR based on the SoC-specific power
area definitions in r8a7779-sysc. The platform code still passed this
information to the rcar-sysc driver, for compatibility with old DTBs
predating commit b2df3aa487395a1b ("ARM: dts: r8a7779: Add SYSC PM
Domains") in v4.7. The time has come to drop backwards compatibility,
and delegate everything to the DT enabled rcar-sysc driver.
After stopping powering down secondary CPUs during early boot, there is
no longer a need to force an early initialization of the rcar-sysc
driver. It will be initialized in time for secondary CPU bringup by its
early_initcall().
Hence all explicit SYSC configuration and initialization can be removed
from the R-Car H1 platform code.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile
index 2b8d389..05ba728 100644
--- a/arch/arm/mach-shmobile/Makefile
+++ b/arch/arm/mach-shmobile/Makefile
@@ -11,7 +11,7 @@
obj-$(CONFIG_ARCH_R8A73A4) += setup-r8a73a4.o
obj-$(CONFIG_ARCH_R8A7740) += setup-r8a7740.o
obj-$(CONFIG_ARCH_R8A7778) += setup-r8a7778.o
-obj-$(CONFIG_ARCH_R8A7779) += setup-r8a7779.o pm-r8a7779.o
+obj-$(CONFIG_ARCH_R8A7779) += setup-r8a7779.o
obj-$(CONFIG_ARCH_EMEV2) += setup-emev2.o
obj-$(CONFIG_ARCH_R7S72100) += setup-r7s72100.o
diff --git a/arch/arm/mach-shmobile/pm-r8a7779.c b/arch/arm/mach-shmobile/pm-r8a7779.c
deleted file mode 100644
index 5c9a93f..0000000
--- a/arch/arm/mach-shmobile/pm-r8a7779.c
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
- * r8a7779 Power management support
- *
- * Copyright (C) 2011 Renesas Solutions Corp.
- * Copyright (C) 2011 Magnus Damm
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-
-#include <linux/soc/renesas/rcar-sysc.h>
-
-#include <asm/io.h>
-
-#include "r8a7779.h"
-
-/* SYSC */
-#define SYSCIER 0x0c
-#define SYSCIMR 0x10
-
-#if defined(CONFIG_PM) || defined(CONFIG_SMP)
-
-static void __init r8a7779_sysc_init(void)
-{
- rcar_sysc_init(0xffd85000, 0x0131000e);
-}
-
-#else /* CONFIG_PM || CONFIG_SMP */
-
-static inline void r8a7779_sysc_init(void) {}
-
-#endif /* CONFIG_PM || CONFIG_SMP */
-
-void __init r8a7779_pm_init(void)
-{
- static int once;
-
- if (!once++)
- r8a7779_sysc_init();
-}
diff --git a/arch/arm/mach-shmobile/r8a7779.h b/arch/arm/mach-shmobile/r8a7779.h
index 30668aa..ca9db8f 100644
--- a/arch/arm/mach-shmobile/r8a7779.h
+++ b/arch/arm/mach-shmobile/r8a7779.h
@@ -2,8 +2,6 @@
#ifndef __ASM_R8A7779_H__
#define __ASM_R8A7779_H__
-extern void r8a7779_pm_init(void);
-
extern const struct smp_operations r8a7779_smp_ops;
#endif /* __ASM_R8A7779_H__ */
diff --git a/arch/arm/mach-shmobile/smp-r8a7779.c b/arch/arm/mach-shmobile/smp-r8a7779.c
index 3036f91..0d3ec5c 100644
--- a/arch/arm/mach-shmobile/smp-r8a7779.c
+++ b/arch/arm/mach-shmobile/smp-r8a7779.c
@@ -60,8 +60,6 @@ static void __init r8a7779_smp_prepare_cpus(unsigned int max_cpus)
/* setup r8a7779 specific SCU bits */
shmobile_smp_scu_prepare_cpus(R8A7779_SCU_BASE, max_cpus);
-
- r8a7779_pm_init();
}
#ifdef CONFIG_HOTPLUG_CPU
