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-rw-r--r--arch/arm/Kconfig.debug10
-rw-r--r--arch/arm/include/uapi/asm/ptrace.h1
-rw-r--r--arch/arm/mach-shmobile/Makefile1
-rw-r--r--arch/arm/mach-shmobile/common.h2
-rw-r--r--arch/arm/mach-shmobile/headsmp-apmu.S37
-rw-r--r--arch/arm/mach-shmobile/platsmp-apmu.c2
-rw-r--r--arch/arm/mach-shmobile/setup-rcar-gen2.c20
7 files changed, 54 insertions, 19 deletions
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 6dcea8e8e941..31bf312be7d5 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -911,6 +911,13 @@ choice
Say Y here if you want kernel low-level debugging support
via SCIF2 on Renesas R-Car E2 (R8A7794).
+ config DEBUG_RCAR_GEN2_SCIF4
+ bool "Kernel low-level debugging messages via SCIF4 on R8A7745"
+ depends on ARCH_R8A7745
+ help
+ Say Y here if you want kernel low-level debugging support
+ via SCIF4 on Renesas RZ/G1E (R8A7745).
+
config DEBUG_RMOBILE_SCIFA0
bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4"
depends on ARCH_R8A73A4
@@ -1451,6 +1458,7 @@ config DEBUG_LL_INCLUDE
default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
+ default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF4
default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
@@ -1570,6 +1578,7 @@ config DEBUG_UART_PHYS
default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4
default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2
default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
+ default 0xe6ee0000 if DEBUG_RCAR_GEN2_SCIF4
default 0xe8008000 if DEBUG_R7S72100_SCIF2
default 0xf0000be0 if ARCH_EBSA110
default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE
@@ -1604,6 +1613,7 @@ config DEBUG_UART_PHYS
DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \
+ DEBUG_RCAR_GEN2_SCIF4 || \
DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
DEBUG_S3C64XX_UART || \
diff --git a/arch/arm/include/uapi/asm/ptrace.h b/arch/arm/include/uapi/asm/ptrace.h
index 5af0ed1b825a..70ff6bf489f3 100644
--- a/arch/arm/include/uapi/asm/ptrace.h
+++ b/arch/arm/include/uapi/asm/ptrace.h
@@ -53,6 +53,7 @@
#endif
#define FIQ_MODE 0x00000011
#define IRQ_MODE 0x00000012
+#define MON_MODE 0x00000016
#define ABT_MODE 0x00000017
#define HYP_MODE 0x0000001a
#define UND_MODE 0x0000001b
diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile
index 64611a1b4276..32176a00c664 100644
--- a/arch/arm/mach-shmobile/Makefile
+++ b/arch/arm/mach-shmobile/Makefile
@@ -22,6 +22,7 @@ cpu-y := platsmp.o headsmp.o
# Shared SoC family objects
obj-$(CONFIG_ARCH_RCAR_GEN2) += setup-rcar-gen2.o platsmp-apmu.o $(cpu-y)
CFLAGS_setup-rcar-gen2.o += -march=armv7-a
+obj-$(CONFIG_ARCH_RCAR_GEN2) += headsmp-apmu.o
obj-$(CONFIG_ARCH_R8A7790) += regulator-quirk-rcar-gen2.o
obj-$(CONFIG_ARCH_R8A7791) += regulator-quirk-rcar-gen2.o
obj-$(CONFIG_ARCH_R8A7793) += regulator-quirk-rcar-gen2.o
diff --git a/arch/arm/mach-shmobile/common.h b/arch/arm/mach-shmobile/common.h
index 1a8f7b3ab449..ea6e9e2be3f7 100644
--- a/arch/arm/mach-shmobile/common.h
+++ b/arch/arm/mach-shmobile/common.h
@@ -1,6 +1,7 @@
#ifndef __ARCH_MACH_COMMON_H
#define __ARCH_MACH_COMMON_H
+extern void shmobile_init_cntvoff(void);
extern void shmobile_init_delay(void);
extern void shmobile_boot_vector(void);
extern unsigned long shmobile_boot_fn;
@@ -11,6 +12,7 @@ extern void shmobile_smp_hook(unsigned int cpu, unsigned long fn,
unsigned long arg);
extern bool shmobile_smp_cpu_can_disable(unsigned int cpu);
extern bool shmobile_smp_init_fallback_ops(void);
+extern void shmobile_boot_apmu(void);
extern void shmobile_boot_scu(void);
extern void shmobile_smp_scu_prepare_cpus(phys_addr_t scu_base_phys,
unsigned int max_cpus);
diff --git a/arch/arm/mach-shmobile/headsmp-apmu.S b/arch/arm/mach-shmobile/headsmp-apmu.S
new file mode 100644
index 000000000000..db4743d2bf91
--- /dev/null
+++ b/arch/arm/mach-shmobile/headsmp-apmu.S
@@ -0,0 +1,37 @@
+/*
+ * SMP support for APMU based systems with Cortex A7/A15
+ *
+ * Copyright (C) 2014 Renesas Electronics Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/linkage.h>
+#include <asm/assembler.h>
+
+ENTRY(shmobile_init_cntvoff)
+ /*
+ * CNTVOFF has to be initialized either from non-secure Hypervisor
+ * mode or secure Monitor mode with SCR.NS==1. If TrustZone is enabled
+ * then it should be handled by the secure code
+ */
+ cps #MON_MODE
+ mrc p15, 0, r1, c1, c1, 0 /* Get Secure Config */
+ orr r0, r1, #1
+ mcr p15, 0, r0, c1, c1, 0 /* Set Non Secure bit */
+ instr_sync
+ mov r0, #0
+ mcrr p15, 4, r0, r0, c14 /* CNTVOFF = 0 */
+ instr_sync
+ mcr p15, 0, r1, c1, c1, 0 /* Set Secure bit */
+ instr_sync
+ cps #SVC_MODE
+ ret lr
+ENDPROC(shmobile_init_cntvoff)
+
+ENTRY(shmobile_boot_apmu)
+ bl shmobile_init_cntvoff
+ b secondary_startup
+ENDPROC(shmobile_boot_apmu)
diff --git a/arch/arm/mach-shmobile/platsmp-apmu.c b/arch/arm/mach-shmobile/platsmp-apmu.c
index 3ca2c13346f0..4422b615a6ee 100644
--- a/arch/arm/mach-shmobile/platsmp-apmu.c
+++ b/arch/arm/mach-shmobile/platsmp-apmu.c
@@ -204,7 +204,7 @@ void __init shmobile_smp_apmu_prepare_cpus(unsigned int max_cpus,
int shmobile_smp_apmu_boot_secondary(unsigned int cpu, struct task_struct *idle)
{
/* For this particular CPU register boot vector */
- shmobile_smp_hook(cpu, __pa_symbol(secondary_startup), 0);
+ shmobile_smp_hook(cpu, __pa_symbol(shmobile_boot_apmu), 0);
return apmu_wrap(cpu, apmu_power_on);
}
diff --git a/arch/arm/mach-shmobile/setup-rcar-gen2.c b/arch/arm/mach-shmobile/setup-rcar-gen2.c
index 7ab1690fab82..5561dbed7a33 100644
--- a/arch/arm/mach-shmobile/setup-rcar-gen2.c
+++ b/arch/arm/mach-shmobile/setup-rcar-gen2.c
@@ -70,28 +70,12 @@ void __init rcar_gen2_timer_init(void)
void __iomem *base;
u32 freq;
+ shmobile_init_cntvoff();
+
if (of_machine_is_compatible("renesas,r8a7745") ||
of_machine_is_compatible("renesas,r8a7792") ||
of_machine_is_compatible("renesas,r8a7794")) {
freq = 260000000 / 8; /* ZS / 8 */
- /* CNTVOFF has to be initialized either from non-secure
- * Hypervisor mode or secure Monitor mode with SCR.NS==1.
- * If TrustZone is enabled then it should be handled by the
- * secure code.
- */
- asm volatile(
- " cps 0x16\n"
- " mrc p15, 0, r1, c1, c1, 0\n"
- " orr r0, r1, #1\n"
- " mcr p15, 0, r0, c1, c1, 0\n"
- " isb\n"
- " mov r0, #0\n"
- " mcrr p15, 4, r0, r0, c14\n"
- " isb\n"
- " mcr p15, 0, r1, c1, c1, 0\n"
- " isb\n"
- " cps 0x13\n"
- : : : "r0", "r1");
} else {
/* At Linux boot time the r8a7790 arch timer comes up
* with the counter disabled. Moreover, it may also report
generated by cgit (git 2.34.1) at 2024-06-02 19:04:42 +0000