[PATCH 3/3] ARM: shmobile: Consolidate the pm code for R-Car Gen2
Simon Horman
horms+renesas at verge.net.au
Thu Mar 19 18:07:22 PDT 2015
From: Gaku Inami <gaku.inami.xw at bp.renesas.com>
The pm code for R-Car Gen2 is scatterd in each SoC. These files
(pm-r8a7790.c/pm-r8a7791.c) have some overlap code. This change
consolidate the pm code for R-Car Gen2 into one.
Signed-off-by: Gaku Inami <gaku.inami.xw at bp.renesas.com>
Acked-by: Geert Uytterhoeven <geert+renesas at glider.be>
Signed-off-by: Simon Horman <horms+renesas at verge.net.au>
---
arch/arm/mach-shmobile/Makefile | 5 +-
arch/arm/mach-shmobile/pm-r8a7790.c | 82 ------------------------
arch/arm/mach-shmobile/pm-r8a7791.c | 73 ---------------------
arch/arm/mach-shmobile/pm-rcar-gen2.c | 115 ++++++++++++++++++++++++++++++++++
arch/arm/mach-shmobile/r8a7790.h | 1 -
arch/arm/mach-shmobile/r8a7791.h | 1 -
arch/arm/mach-shmobile/rcar-gen2.h | 1 +
arch/arm/mach-shmobile/smp-r8a7790.c | 3 +-
arch/arm/mach-shmobile/smp-r8a7791.c | 2 +-
9 files changed, 122 insertions(+), 161 deletions(-)
delete mode 100644 arch/arm/mach-shmobile/pm-r8a7790.c
delete mode 100644 arch/arm/mach-shmobile/pm-r8a7791.c
create mode 100644 arch/arm/mach-shmobile/pm-rcar-gen2.c
diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile
index d53996e..0ae702b 100644
--- a/arch/arm/mach-shmobile/Makefile
+++ b/arch/arm/mach-shmobile/Makefile
@@ -12,8 +12,8 @@ obj-$(CONFIG_ARCH_R8A73A4) += setup-r8a73a4.o
obj-$(CONFIG_ARCH_R8A7740) += setup-r8a7740.o pm-r8a7740.o
obj-$(CONFIG_ARCH_R8A7778) += setup-r8a7778.o
obj-$(CONFIG_ARCH_R8A7779) += setup-r8a7779.o pm-r8a7779.o
-obj-$(CONFIG_ARCH_R8A7790) += setup-r8a7790.o pm-r8a7790.o
-obj-$(CONFIG_ARCH_R8A7791) += setup-r8a7791.o pm-r8a7791.o
+obj-$(CONFIG_ARCH_R8A7790) += setup-r8a7790.o
+obj-$(CONFIG_ARCH_R8A7791) += setup-r8a7791.o
obj-$(CONFIG_ARCH_R8A7794) += setup-r8a7794.o
obj-$(CONFIG_ARCH_EMEV2) += setup-emev2.o
obj-$(CONFIG_ARCH_R7S72100) += setup-r7s72100.o
@@ -50,6 +50,7 @@ obj-$(CONFIG_CPU_IDLE) += cpuidle.o
obj-$(CONFIG_CPU_FREQ) += cpufreq.o
obj-$(CONFIG_PM_RCAR) += pm-rcar.o
obj-$(CONFIG_PM_RMOBILE) += pm-rmobile.o
+obj-$(CONFIG_ARCH_RCAR_GEN2) += pm-rcar-gen2.o
# special sh7372 handling for IRQ objects and low level sleep code
obj-$(CONFIG_ARCH_SH7372) += entry-intc.o sleep-sh7372.o
diff --git a/arch/arm/mach-shmobile/pm-r8a7790.c b/arch/arm/mach-shmobile/pm-r8a7790.c
deleted file mode 100644
index 23b61f1..0000000
--- a/arch/arm/mach-shmobile/pm-r8a7790.c
+++ /dev/null
@@ -1,82 +0,0 @@
-/*
- * r8a7790 Power management support
- *
- * Copyright (C) 2013 Renesas Electronics Corporation
- * 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/kernel.h>
-#include <linux/smp.h>
-#include <asm/io.h>
-#include "common.h"
-#include "pm-rcar.h"
-#include "r8a7790.h"
-
-/* RST */
-#define RST 0xe6160000
-#define CA15BAR 0x0020
-#define CA7BAR 0x0030
-#define CA15RESCNT 0x0040
-#define CA7RESCNT 0x0044
-
-/* On-chip RAM */
-#define MERAM 0xe8080000
-
-/* SYSC */
-#define SYSCIER 0x0c
-#define SYSCIMR 0x10
-
-#if defined(CONFIG_SMP)
-
-static void __init r8a7790_sysc_init(void)
-{
- void __iomem *base = rcar_sysc_init(0xe6180000);
-
- /* enable all interrupt sources, but do not use interrupt handler */
- iowrite32(0x013111ef, base + SYSCIER);
- iowrite32(0, base + SYSCIMR);
-}
-
-#else /* CONFIG_SMP */
-
-static inline void r8a7790_sysc_init(void) {}
-
-#endif /* CONFIG_SMP */
-
-void __init r8a7790_pm_init(void)
-{
- void __iomem *p;
- u32 bar;
- static int once;
-
- if (once++)
- return;
-
- /* MERAM for jump stub, because BAR requires 256KB aligned address */
- p = ioremap_nocache(MERAM, shmobile_boot_size);
- memcpy_toio(p, shmobile_boot_vector, shmobile_boot_size);
- iounmap(p);
-
- /* setup reset vectors */
- p = ioremap_nocache(RST, 0x63);
- bar = (MERAM >> 8) & 0xfffffc00;
- writel_relaxed(bar, p + CA15BAR);
- writel_relaxed(bar, p + CA7BAR);
- writel_relaxed(bar | 0x10, p + CA15BAR);
- writel_relaxed(bar | 0x10, p + CA7BAR);
-
- /* de-assert reset for all CPUs */
- writel_relaxed((readl_relaxed(p + CA15RESCNT) & ~0x0f) | 0xa5a50000,
- p + CA15RESCNT);
- writel_relaxed((readl_relaxed(p + CA7RESCNT) & ~0x0f) | 0x5a5a0000,
- p + CA7RESCNT);
- iounmap(p);
-
- r8a7790_sysc_init();
- shmobile_smp_apmu_suspend_init();
-}
diff --git a/arch/arm/mach-shmobile/pm-r8a7791.c b/arch/arm/mach-shmobile/pm-r8a7791.c
deleted file mode 100644
index f7cfb3b..0000000
--- a/arch/arm/mach-shmobile/pm-r8a7791.c
+++ /dev/null
@@ -1,73 +0,0 @@
-/*
- * r8a7791 Power management support
- *
- * Copyright (C) 2014 Renesas Electronics Corporation
- * 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/kernel.h>
-#include <linux/smp.h>
-#include <asm/io.h>
-#include "common.h"
-#include "pm-rcar.h"
-#include "r8a7791.h"
-
-#define RST 0xe6160000
-#define CA15BAR 0x0020
-#define CA15RESCNT 0x0040
-#define RAM 0xe6300000
-
-/* SYSC */
-#define SYSCIER 0x0c
-#define SYSCIMR 0x10
-
-#if defined(CONFIG_SMP)
-
-static void __init r8a7791_sysc_init(void)
-{
- void __iomem *base = rcar_sysc_init(0xe6180000);
-
- /* enable all interrupt sources, but do not use interrupt handler */
- iowrite32(0x00111003, base + SYSCIER);
- iowrite32(0, base + SYSCIMR);
-}
-
-#else /* CONFIG_SMP */
-
-static inline void r8a7791_sysc_init(void) {}
-
-#endif /* CONFIG_SMP */
-
-void __init r8a7791_pm_init(void)
-{
- void __iomem *p;
- u32 bar;
- static int once;
-
- if (once++)
- return;
-
- /* RAM for jump stub, because BAR requires 256KB aligned address */
- p = ioremap_nocache(RAM, shmobile_boot_size);
- memcpy_toio(p, shmobile_boot_vector, shmobile_boot_size);
- iounmap(p);
-
- /* setup reset vectors */
- p = ioremap_nocache(RST, 0x63);
- bar = (RAM >> 8) & 0xfffffc00;
- writel_relaxed(bar, p + CA15BAR);
- writel_relaxed(bar | 0x10, p + CA15BAR);
-
- /* enable clocks to all CPUs */
- writel_relaxed((readl_relaxed(p + CA15RESCNT) & ~0x0f) | 0xa5a50000,
- p + CA15RESCNT);
- iounmap(p);
-
- r8a7791_sysc_init();
- shmobile_smp_apmu_suspend_init();
-}
diff --git a/arch/arm/mach-shmobile/pm-rcar-gen2.c b/arch/arm/mach-shmobile/pm-rcar-gen2.c
new file mode 100644
index 0000000..6815781
--- /dev/null
+++ b/arch/arm/mach-shmobile/pm-rcar-gen2.c
@@ -0,0 +1,115 @@
+/*
+ * R-Car Generation 2 Power management support
+ *
+ * Copyright (C) 2013 - 2015 Renesas Electronics Corporation
+ * 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/kernel.h>
+#include <linux/of.h>
+#include <linux/smp.h>
+#include <asm/io.h>
+#include "common.h"
+#include "pm-rcar.h"
+#include "rcar-gen2.h"
+
+/* RST */
+#define RST 0xe6160000
+#define CA15BAR 0x0020
+#define CA7BAR 0x0030
+#define CA15RESCNT 0x0040
+#define CA7RESCNT 0x0044
+
+/* On-chip RAM */
+#define MERAM 0xe8080000
+#define RAM 0xe6300000
+
+/* SYSC */
+#define SYSCIER 0x0c
+#define SYSCIMR 0x10
+
+#if defined(CONFIG_SMP)
+
+static void __init rcar_gen2_sysc_init(u32 syscier)
+{
+ void __iomem *base = rcar_sysc_init(0xe6180000);
+
+ /* enable all interrupt sources, but do not use interrupt handler */
+ iowrite32(syscier, base + SYSCIER);
+ iowrite32(0, base + SYSCIMR);
+}
+
+#else /* CONFIG_SMP */
+
+static inline void rcar_gen2_sysc_init(u32 syscier) {}
+
+#endif /* CONFIG_SMP */
+
+void __init rcar_gen2_pm_init(void)
+{
+ void __iomem *p;
+ u32 bar;
+ static int once;
+ struct device_node *np, *cpus;
+ bool has_a7 = false;
+ bool has_a15 = false;
+ phys_addr_t boot_vector_addr = 0;
+ u32 syscier = 0;
+
+ if (once++)
+ return;
+
+ cpus = of_find_node_by_path("/cpus");
+ if (!cpus)
+ return;
+
+ for_each_child_of_node(cpus, np) {
+ if (of_device_is_compatible(np, "arm,cortex-a15"))
+ has_a15 = true;
+ else if (of_device_is_compatible(np, "arm,cortex-a7"))
+ has_a7 = true;
+ }
+
+ if (of_machine_is_compatible("renesas,r8a7790")) {
+ boot_vector_addr = MERAM;
+ syscier = 0x013111ef;
+
+ } else if (of_machine_is_compatible("renesas,r8a7791")) {
+ boot_vector_addr = RAM;
+ syscier = 0x00111003;
+ }
+
+ /* RAM for jump stub, because BAR requires 256KB aligned address */
+ p = ioremap_nocache(boot_vector_addr, shmobile_boot_size);
+ memcpy_toio(p, shmobile_boot_vector, shmobile_boot_size);
+ iounmap(p);
+
+ /* setup reset vectors */
+ p = ioremap_nocache(RST, 0x63);
+ bar = (boot_vector_addr >> 8) & 0xfffffc00;
+ if (has_a15) {
+ writel_relaxed(bar, p + CA15BAR);
+ writel_relaxed(bar | 0x10, p + CA15BAR);
+
+ /* de-assert reset for CA15 CPUs */
+ writel_relaxed((readl_relaxed(p + CA15RESCNT) & ~0x0f) |
+ 0xa5a50000, p + CA15RESCNT);
+ }
+ if (has_a7) {
+ writel_relaxed(bar, p + CA7BAR);
+ writel_relaxed(bar | 0x10, p + CA7BAR);
+
+ /* de-assert reset for CA7 CPUs */
+ writel_relaxed((readl_relaxed(p + CA7RESCNT) & ~0x0f) |
+ 0x5a5a0000, p + CA7RESCNT);
+ }
+ iounmap(p);
+
+ rcar_gen2_sysc_init(syscier);
+ shmobile_smp_apmu_suspend_init();
+}
diff --git a/arch/arm/mach-shmobile/r8a7790.h b/arch/arm/mach-shmobile/r8a7790.h
index bf73a85..1a46d02 100644
--- a/arch/arm/mach-shmobile/r8a7790.h
+++ b/arch/arm/mach-shmobile/r8a7790.h
@@ -1,7 +1,6 @@
#ifndef __ASM_R8A7790_H__
#define __ASM_R8A7790_H__
-void r8a7790_pm_init(void);
extern struct smp_operations r8a7790_smp_ops;
#endif /* __ASM_R8A7790_H__ */
diff --git a/arch/arm/mach-shmobile/r8a7791.h b/arch/arm/mach-shmobile/r8a7791.h
index 6cf11eb..7ca0b7d 100644
--- a/arch/arm/mach-shmobile/r8a7791.h
+++ b/arch/arm/mach-shmobile/r8a7791.h
@@ -1,7 +1,6 @@
#ifndef __ASM_R8A7791_H__
#define __ASM_R8A7791_H__
-void r8a7791_pm_init(void);
extern struct smp_operations r8a7791_smp_ops;
#endif /* __ASM_R8A7791_H__ */
diff --git a/arch/arm/mach-shmobile/rcar-gen2.h b/arch/arm/mach-shmobile/rcar-gen2.h
index ce53cb5..8a66b4a 100644
--- a/arch/arm/mach-shmobile/rcar-gen2.h
+++ b/arch/arm/mach-shmobile/rcar-gen2.h
@@ -5,5 +5,6 @@ void rcar_gen2_timer_init(void);
#define MD(nr) BIT(nr)
u32 rcar_gen2_read_mode_pins(void);
void rcar_gen2_reserve(void);
+void rcar_gen2_pm_init(void);
#endif /* __ASM_RCAR_GEN2_H__ */
diff --git a/arch/arm/mach-shmobile/smp-r8a7790.c b/arch/arm/mach-shmobile/smp-r8a7790.c
index 9c3da13..f8be415 100644
--- a/arch/arm/mach-shmobile/smp-r8a7790.c
+++ b/arch/arm/mach-shmobile/smp-r8a7790.c
@@ -23,6 +23,7 @@
#include "common.h"
#include "platsmp-apmu.h"
#include "pm-rcar.h"
+#include "rcar-gen2.h"
#include "r8a7790.h"
static struct rcar_sysc_ch r8a7790_ca15_scu = {
@@ -54,7 +55,7 @@ static void __init r8a7790_smp_prepare_cpus(unsigned int max_cpus)
ARRAY_SIZE(r8a7790_apmu_config));
/* turn on power to SCU */
- r8a7790_pm_init();
+ rcar_gen2_pm_init();
rcar_sysc_power_up(&r8a7790_ca15_scu);
rcar_sysc_power_up(&r8a7790_ca7_scu);
}
diff --git a/arch/arm/mach-shmobile/smp-r8a7791.c b/arch/arm/mach-shmobile/smp-r8a7791.c
index 7e49e0a..6658682 100644
--- a/arch/arm/mach-shmobile/smp-r8a7791.c
+++ b/arch/arm/mach-shmobile/smp-r8a7791.c
@@ -39,7 +39,7 @@ static void __init r8a7791_smp_prepare_cpus(unsigned int max_cpus)
r8a7791_apmu_config,
ARRAY_SIZE(r8a7791_apmu_config));
- r8a7791_pm_init();
+ rcar_gen2_pm_init();
}
static int r8a7791_smp_boot_secondary(unsigned int cpu,
--
2.1.4
More information about the linux-arm-kernel
mailing list