diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index fe44b24946094d7ee7b0ea3add74c61c73f3a15a..df94ac1f75b6ac517784364cdeff6781eead9a6b 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -428,3 +428,4 @@ source "arch/arc/Kconfig.debug"
source "security/Kconfig"
source "crypto/Kconfig"
source "lib/Kconfig"
+source "kernel/power/Kconfig"
diff --git a/arch/arc/Makefile b/arch/arc/Makefile
index 10bc3d4e8a443b891007f9d10b01bb2072413342..db72fec0e160fc8e67fe17c5faf9c6ef54c8bcdb 100644
--- a/arch/arc/Makefile
+++ b/arch/arc/Makefile
@@ -12,7 +12,7 @@ ifeq ($(CROSS_COMPILE),)
CROSS_COMPILE := arc-linux-uclibc-
endif
-KBUILD_DEFCONFIG := fpga_defconfig
+KBUILD_DEFCONFIG := nsim_700_defconfig
cflags-y += -mA7 -fno-common -pipe -fno-builtin -D__linux__
diff --git a/arch/arc/boot/dts/nsimosci.dts b/arch/arc/boot/dts/nsimosci.dts
index cfaedd9c61c99d89f42c50ea694cfda48f2a2b18..1c169dc74ad1399685e0eb965bb94da5562327d2 100644
--- a/arch/arc/boot/dts/nsimosci.dts
+++ b/arch/arc/boot/dts/nsimosci.dts
@@ -20,7 +20,7 @@
/* this is for console on PGU */
/* bootargs = "console=tty0 consoleblank=0"; */
/* this is for console on serial */
- bootargs = "earlycon=uart8250,mmio32,0xc0000000,115200n8 console=tty0 console=ttyS0,115200n8 consoleblank=0 debug";
+ bootargs = "earlycon=uart8250,mmio32,0xf0000000,115200n8 console=tty0 console=ttyS0,115200n8 consoleblank=0 debug";
};
aliases {
@@ -41,9 +41,9 @@
#interrupt-cells = <1>;
};
- uart0: serial@c0000000 {
+ uart0: serial@f0000000 {
compatible = "ns8250";
- reg = <0xc0000000 0x2000>;
+ reg = <0xf0000000 0x2000>;
interrupts = <11>;
clock-frequency = <3686400>;
baud = <115200>;
@@ -52,21 +52,21 @@
no-loopback-test = <1>;
};
- pgu0: pgu@c9000000 {
+ pgu0: pgu@f9000000 {
compatible = "snps,arcpgufb";
- reg = <0xc9000000 0x400>;
+ reg = <0xf9000000 0x400>;
};
- ps2: ps2@c9001000 {
+ ps2: ps2@f9001000 {
compatible = "snps,arc_ps2";
- reg = <0xc9000400 0x14>;
+ reg = <0xf9000400 0x14>;
interrupts = <13>;
interrupt-names = "arc_ps2_irq";
};
- eth0: ethernet@c0003000 {
+ eth0: ethernet@f0003000 {
compatible = "snps,oscilan";
- reg = <0xc0003000 0x44>;
+ reg = <0xf0003000 0x44>;
interrupts = <7>, <8>;
interrupt-names = "rx", "tx";
};
diff --git a/arch/arc/configs/fpga_noramfs_defconfig b/arch/arc/configs/fpga_noramfs_defconfig
deleted file mode 100644
index 49c93011ab96ed322cf3bf35b729ee5a0fa40c81..0000000000000000000000000000000000000000
--- a/arch/arc/configs/fpga_noramfs_defconfig
+++ /dev/null
@@ -1,63 +0,0 @@
-CONFIG_CROSS_COMPILE="arc-linux-uclibc-"
-# CONFIG_LOCALVERSION_AUTO is not set
-CONFIG_DEFAULT_HOSTNAME="ARCLinux"
-# CONFIG_SWAP is not set
-CONFIG_HIGH_RES_TIMERS=y
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
-CONFIG_NAMESPACES=y
-# CONFIG_UTS_NS is not set
-# CONFIG_PID_NS is not set
-CONFIG_BLK_DEV_INITRD=y
-CONFIG_KALLSYMS_ALL=y
-CONFIG_EMBEDDED=y
-# CONFIG_SLUB_DEBUG is not set
-# CONFIG_COMPAT_BRK is not set
-CONFIG_KPROBES=y
-CONFIG_MODULES=y
-# CONFIG_LBDAF is not set
-# CONFIG_BLK_DEV_BSG is not set
-# CONFIG_IOSCHED_DEADLINE is not set
-# CONFIG_IOSCHED_CFQ is not set
-CONFIG_ARC_PLAT_FPGA_LEGACY=y
-# CONFIG_ARC_HAS_RTSC is not set
-CONFIG_ARC_BUILTIN_DTB_NAME="angel4"
-CONFIG_PREEMPT=y
-# CONFIG_COMPACTION is not set
-# CONFIG_CROSS_MEMORY_ATTACH is not set
-CONFIG_NET=y
-CONFIG_PACKET=y
-CONFIG_UNIX=y
-CONFIG_UNIX_DIAG=y
-CONFIG_NET_KEY=y
-CONFIG_INET=y
-# CONFIG_IPV6 is not set
-# CONFIG_STANDALONE is not set
-# CONFIG_PREVENT_FIRMWARE_BUILD is not set
-# CONFIG_FIRMWARE_IN_KERNEL is not set
-# CONFIG_BLK_DEV is not set
-CONFIG_NETDEVICES=y
-CONFIG_ARC_EMAC=y
-CONFIG_LXT_PHY=y
-# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
-# CONFIG_INPUT_KEYBOARD is not set
-# CONFIG_INPUT_MOUSE is not set
-# CONFIG_SERIO is not set
-# CONFIG_LEGACY_PTYS is not set
-# CONFIG_DEVKMEM is not set
-CONFIG_SERIAL_ARC=y
-CONFIG_SERIAL_ARC_CONSOLE=y
-# CONFIG_HW_RANDOM is not set
-# CONFIG_HWMON is not set
-# CONFIG_VGA_CONSOLE is not set
-# CONFIG_HID is not set
-# CONFIG_USB_SUPPORT is not set
-# CONFIG_IOMMU_SUPPORT is not set
-CONFIG_EXT2_FS=y
-CONFIG_EXT2_FS_XATTR=y
-CONFIG_TMPFS=y
-# CONFIG_MISC_FILESYSTEMS is not set
-CONFIG_NFS_FS=y
-# CONFIG_ENABLE_WARN_DEPRECATED is not set
-# CONFIG_ENABLE_MUST_CHECK is not set
-CONFIG_XZ_DEC=y
diff --git a/arch/arc/configs/fpga_defconfig b/arch/arc/configs/nsim_700_defconfig
similarity index 100%
rename from arch/arc/configs/fpga_defconfig
rename to arch/arc/configs/nsim_700_defconfig
diff --git a/arch/arc/include/asm/irqflags.h b/arch/arc/include/asm/irqflags.h
index 742816f1b2101e2e8ef090ea9d14d444ae97aec8..27ecc6975a5845dee5960197bded8edeff261cbc 100644
--- a/arch/arc/include/asm/irqflags.h
+++ b/arch/arc/include/asm/irqflags.h
@@ -41,6 +41,15 @@
/******************************************************************
* IRQ Control Macros
+ *
+ * All of them have "memory" clobber (compiler barrier) which is needed to
+ * ensure that LD/ST requiring irq safetly (R-M-W when LLSC is not available)
+ * are redone after IRQs are re-enabled (and gcc doesn't reuse stale register)
+ *
+ * Noted at the time of Abilis Timer List corruption
+ * Orig Bug + Rejected solution : https://lkml.org/lkml/2013/3/29/67
+ * Reasoning : https://lkml.org/lkml/2013/4/8/15
+ *
******************************************************************/
/*
diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c
index d01df0c517a2044ddc15f5fdb895303aa3de56bb..20ebb602ea2f3a4f9721fff8f4458fcf4c0e3ec5 100644
--- a/arch/arc/kernel/smp.c
+++ b/arch/arc/kernel/smp.c
@@ -26,8 +26,10 @@
#include <asm/setup.h>
#include <asm/mach_desc.h>
+#ifndef CONFIG_ARC_HAS_LLSC
arch_spinlock_t smp_atomic_ops_lock = __ARCH_SPIN_LOCK_UNLOCKED;
arch_spinlock_t smp_bitops_lock = __ARCH_SPIN_LOCK_UNLOCKED;
+#endif
struct plat_smp_ops plat_smp_ops;