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Minor updates for ARC for 3.19 

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Merge tag 'arc-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull arch/arc updates from Vineet Gupta:
 "Minor updates for ARC for 3.19"

* tag 'arc-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARC: rename default defconfig
  ARC: [nsimosci] move peripherals to match model to FPGA
  ARC: document memory clobber in irq control macros
  ARC: R-M-W assist locks only needed for !LLSC
  ARC: add power management options
This commit is contained in:
Linus Torvalds 2014-12-18 16:26:41 -08:00
parent 39757e7351 7a70bf797a
commit 22943a6a6b
7 changed files with 22 additions and 73 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/arc/Kconfig
View File

@ -428,3 +428,4 @@ source "arch/arc/Kconfig.debug"
source "security/Kconfig"
source "crypto/Kconfig"
source "lib/Kconfig"
source "kernel/power/Kconfig"

2
arch/arc/Makefile
View File

@ -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__

18
arch/arc/boot/dts/nsimosci.dts
View File

@ -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";
};

63
arch/arc/configs/fpga_noramfs_defconfig
View File

@ -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

0
arch/arc/configs/fpga_defconfig → arch/arc/configs/nsim_700_defconfig
View File

9
arch/arc/include/asm/irqflags.h
View File

@ -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
*
******************************************************************/
/*

2
arch/arc/kernel/smp.c
View File

@ -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;