Commit e30f4192 authored by Linus Torvalds's avatar Linus Torvalds

Merge tag 'arc-v3.10-rc1-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull ARC port updates from Vineet Gupta:
 "Support for two new platforms based on ARC700:
   - Abilis TB10x SoC [Chritisian/Pierrick]
   - Simulator only System-C Model [Mischa]

  ARC specific MM improvements:
   - Avoid full TLB flush (ASID increment) on munmap (even single page)
   - VIPT Cache Flushing improvements
     + Delayed dcache flush for non-aliasing dcache (big performance boost)
     + icache flush aliasing agnostic (no need to kill all possible aliases)

  Others:
   - Avoid needless rebuild of DTB files for every kernel build
   - Remove builtin cmdline as that is already provided by DeviceTree/bootargs
   - Fixing unaligned access emulation corner case
   - checkpatch fixes [Sachin]
   - Various fixlets [Noam]
   - Minor build failures/cleanups"

* tag 'arc-v3.10-rc1-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: (35 commits)
  ARC: [mm] Lazy D-cache flush (non aliasing VIPT)
  ARC: [mm] micro-optimize page size icache invalidate
  ARC: [mm] remove the pessimistic all-alias-invalidate icache helpers
  ARC: [mm] consolidate icache/dcache sync code
  ARC: [mm] optimise icache flush for kernel mappings
  ARC: [mm] optimise icache flush for user mappings
  ARC: [mm] optimize needless full mm TLB flush on munmap
  ARC: Add support for nSIM OSCI System C model
  ARC: [TB10x] Adapt device tree to new compatible string
  ARC: [TB10x] Add support for TB10x platform
  ARC: [TB10x] Device tree of TB100 and TB101 Development Kits
  ARC: Prepare interrupt code for external controllers
  ARC: Allow embedded arc-intc to be properly placed in DT intc hierarchy
  ARC: [cmdline] Don't overwrite u-boot provided bootargs
  ARC: [cmdline] Remove CONFIG_CMDLINE
  ARC: [plat-arcfpga] defconfig update
  ARC: unaligned access emulation broken if callee-reg dest of LD/ST
  ARC: unaligned access emulation error handling consolidation
  ARC: Debug/crash-printing Improvements
  ARC: fix typo with clock speed
  ...
parents b32729b1 eacd0e95
......@@ -16,8 +16,6 @@ config ARC
select GENERIC_FIND_FIRST_BIT
# for now, we don't need GENERIC_IRQ_PROBE, CONFIG_GENERIC_IRQ_CHIP
select GENERIC_IRQ_SHOW
select GENERIC_KERNEL_EXECVE
select GENERIC_KERNEL_THREAD
select GENERIC_PENDING_IRQ if SMP
select GENERIC_SMP_IDLE_THREAD
select HAVE_ARCH_KGDB
......@@ -61,9 +59,6 @@ config GENERIC_CALIBRATE_DELAY
config GENERIC_HWEIGHT
def_bool y
config BINFMT_ELF
def_bool y
config STACKTRACE_SUPPORT
def_bool y
select STACKTRACE
......@@ -82,6 +77,7 @@ menu "ARC Architecture Configuration"
menu "ARC Platform/SoC/Board"
source "arch/arc/plat-arcfpga/Kconfig"
source "arch/arc/plat-tb10x/Kconfig"
#New platform adds here
endmenu
......@@ -134,9 +130,6 @@ if SMP
config ARC_HAS_COH_CACHES
def_bool n
config ARC_HAS_COH_LLSC
def_bool n
config ARC_HAS_COH_RTSC
def_bool n
......@@ -304,6 +297,9 @@ config ARC_FPU_SAVE_RESTORE
based on actual usage of FPU by a task. Thus our implemn does
this for all tasks in system.
config ARC_CANT_LLSC
def_bool n
menuconfig ARC_CPU_REL_4_10
bool "Enable support for Rel 4.10 features"
default n
......@@ -314,9 +310,7 @@ menuconfig ARC_CPU_REL_4_10
config ARC_HAS_LLSC
bool "Insn: LLOCK/SCOND (efficient atomic ops)"
default y
depends on ARC_CPU_770
# if SMP, enable LLSC ONLY if ARC implementation has coherent atomics
depends on !SMP || ARC_HAS_COH_LLSC
depends on ARC_CPU_770 && !ARC_CANT_LLSC
config ARC_HAS_SWAPE
bool "Insn: SWAPE (endian-swap)"
......@@ -415,13 +409,6 @@ config ARC_DBG_TLB_MISS_COUNT
Counts number of I and D TLB Misses and exports them via Debugfs
The counters can be cleared via Debugfs as well
config CMDLINE
string "Kernel command line to built-in"
default "print-fatal-signals=1"
help
The default command line which will be appended to the optional
u-boot provided command line (see below)
config CMDLINE_UBOOT
bool "Support U-boot kernel command line passing"
default n
......@@ -430,8 +417,8 @@ config CMDLINE_UBOOT
command line from the U-boot environment to the Linux kernel then
switch this option on.
ARC U-boot will setup the cmdline in RAM/flash and set r2 to point
to it. kernel startup code will copy the string into cmdline buffer
and also append CONFIG_CMDLINE.
to it. kernel startup code will append this to DeviceTree
/bootargs provided cmdline args.
config ARC_BUILTIN_DTB_NAME
string "Built in DTB"
......@@ -441,6 +428,10 @@ config ARC_BUILTIN_DTB_NAME
source "kernel/Kconfig.preempt"
menu "Executable file formats"
source "fs/Kconfig.binfmt"
endmenu
endmenu # "ARC Architecture Configuration"
source "mm/Kconfig"
......
......@@ -8,6 +8,10 @@
UTS_MACHINE := arc
ifeq ($(CROSS_COMPILE),)
CROSS_COMPILE := arc-elf32-
endif
KBUILD_DEFCONFIG := fpga_defconfig
cflags-y += -mA7 -fno-common -pipe -fno-builtin -D__linux__
......@@ -87,20 +91,23 @@ core-y += arch/arc/
core-y += arch/arc/boot/dts/
core-$(CONFIG_ARC_PLAT_FPGA_LEGACY) += arch/arc/plat-arcfpga/
core-$(CONFIG_ARC_PLAT_TB10X) += arch/arc/plat-tb10x/
drivers-$(CONFIG_OPROFILE) += arch/arc/oprofile/
libs-y += arch/arc/lib/ $(LIBGCC)
boot := arch/arc/boot
#default target for make without any arguements.
KBUILD_IMAGE := bootpImage
KBUILD_IMAGE := bootpImage
all: $(KBUILD_IMAGE)
boot := arch/arc/boot
bootpImage: vmlinux
uImage: vmlinux
boot_targets += uImage uImage.bin uImage.gz
$(boot_targets): vmlinux
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
%.dtb %.dtb.S %.dtb.o: scripts
......
......@@ -3,7 +3,6 @@ targets := vmlinux.bin vmlinux.bin.gz uImage
# uImage build relies on mkimage being availble on your host for ARC target
# You will need to build u-boot for ARC, rename mkimage to arc-elf32-mkimage
# and make sure it's reacable from your PATH
MKIMAGE := $(srctree)/scripts/mkuboot.sh
OBJCOPYFLAGS= -O binary -R .note -R .note.gnu.build-id -R .comment -S
......@@ -12,7 +11,12 @@ LINUX_START_TEXT = $$(readelf -h vmlinux | \
UIMAGE_LOADADDR = $(CONFIG_LINUX_LINK_BASE)
UIMAGE_ENTRYADDR = $(LINUX_START_TEXT)
UIMAGE_COMPRESSION = gzip
suffix-y := bin
suffix-$(CONFIG_KERNEL_GZIP) := gz
targets += uImage uImage.bin uImage.gz
extra-y += vmlinux.bin vmlinux.bin.gz
$(obj)/vmlinux.bin: vmlinux FORCE
$(call if_changed,objcopy)
......@@ -20,7 +24,12 @@ $(obj)/vmlinux.bin: vmlinux FORCE
$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
$(call if_changed,gzip)
$(obj)/uImage: $(obj)/vmlinux.bin.gz FORCE
$(call if_changed,uimage)
$(obj)/uImage.bin: $(obj)/vmlinux.bin FORCE
$(call if_changed,uimage,none)
$(obj)/uImage.gz: $(obj)/vmlinux.bin.gz FORCE
$(call if_changed,uimage,gzip)
PHONY += FORCE
$(obj)/uImage: $(obj)/uImage.$(suffix-y)
@ln -sf $(notdir $<) $@
@echo ' Image $@ is ready'
......@@ -8,6 +8,8 @@ endif
obj-y += $(builtindtb-y).dtb.o
targets += $(builtindtb-y).dtb
.SECONDARY: $(obj)/$(builtindtb-y).dtb.S
dtbs: $(addprefix $(obj)/, $(builtindtb-y).dtb)
clean-files := *.dtb
clean-files := *.dtb *.dtb.S
/*
* Abilis Systems TB100 SOC device tree
*
* Copyright (C) Abilis Systems 2013
*
* Author: Christian Ruppert <christian.ruppert@abilis.com>
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/include/ "abilis_tb10x.dtsi"
/* interrupt specifiers
* --------------------
* 0: rising, 1: low, 2: high, 3: falling,
*/
/ {
clock-frequency = <500000000>; /* 500 MHZ */
soc100 {
bus-frequency = <166666666>;
pll0: oscillator {
clock-frequency = <1000000000>;
};
cpu_clk: clkdiv_cpu {
clock-mult = <1>;
clock-div = <2>;
};
ahb_clk: clkdiv_ahb {
clock-mult = <1>;
clock-div = <6>;
};
iomux: iomux@FF10601c {
/* Port 1 */
pctl_tsin_s0: pctl-tsin-s0 { /* Serial TS-in 0 */
pingrp = "mis0_pins";
};
pctl_tsin_s1: pctl-tsin-s1 { /* Serial TS-in 1 */
pingrp = "mis1_pins";
};
pctl_gpio_a: pctl-gpio-a { /* GPIO bank A */
pingrp = "gpioa_pins";
};
pctl_tsin_p1: pctl-tsin-p1 { /* Parallel TS-in 1 */
pingrp = "mip1_pins";
};
/* Port 2 */
pctl_tsin_s2: pctl-tsin-s2 { /* Serial TS-in 2 */
pingrp = "mis2_pins";
};
pctl_tsin_s3: pctl-tsin-s3 { /* Serial TS-in 3 */
pingrp = "mis3_pins";
};
pctl_gpio_c: pctl-gpio-c { /* GPIO bank C */
pingrp = "gpioc_pins";
};
pctl_tsin_p3: pctl-tsin-p3 { /* Parallel TS-in 3 */
pingrp = "mip3_pins";
};
/* Port 3 */
pctl_tsin_s4: pctl-tsin-s4 { /* Serial TS-in 4 */
pingrp = "mis4_pins";
};
pctl_tsin_s5: pctl-tsin-s5 { /* Serial TS-in 5 */
pingrp = "mis5_pins";
};
pctl_gpio_e: pctl-gpio-e { /* GPIO bank E */
pingrp = "gpioe_pins";
};
pctl_tsin_p5: pctl-tsin-p5 { /* Parallel TS-in 5 */
pingrp = "mip5_pins";
};
/* Port 4 */
pctl_tsin_s6: pctl-tsin-s6 { /* Serial TS-in 6 */
pingrp = "mis6_pins";
};
pctl_tsin_s7: pctl-tsin-s7 { /* Serial TS-in 7 */
pingrp = "mis7_pins";
};
pctl_gpio_g: pctl-gpio-g { /* GPIO bank G */
pingrp = "gpiog_pins";
};
pctl_tsin_p7: pctl-tsin-p7 { /* Parallel TS-in 7 */
pingrp = "mip7_pins";
};
/* Port 5 */
pctl_gpio_j: pctl-gpio-j { /* GPIO bank J */
pingrp = "gpioj_pins";
};
pctl_gpio_k: pctl-gpio-k { /* GPIO bank K */
pingrp = "gpiok_pins";
};
pctl_ciplus: pctl-ciplus { /* CI+ interface */
pingrp = "ciplus_pins";
};
pctl_mcard: pctl-mcard { /* M-Card interface */
pingrp = "mcard_pins";
};
/* Port 6 */
pctl_tsout_p: pctl-tsout-p { /* Parallel TS-out */
pingrp = "mop_pins";
};
pctl_tsout_s0: pctl-tsout-s0 { /* Serial TS-out 0 */
pingrp = "mos0_pins";
};
pctl_tsout_s1: pctl-tsout-s1 { /* Serial TS-out 1 */
pingrp = "mos1_pins";
};
pctl_tsout_s2: pctl-tsout-s2 { /* Serial TS-out 2 */
pingrp = "mos2_pins";
};
pctl_tsout_s3: pctl-tsout-s3 { /* Serial TS-out 3 */
pingrp = "mos3_pins";
};
/* Port 7 */
pctl_uart0: pctl-uart0 { /* UART 0 */
pingrp = "uart0_pins";
};
pctl_uart1: pctl-uart1 { /* UART 1 */
pingrp = "uart1_pins";
};
pctl_gpio_l: pctl-gpio-l { /* GPIO bank L */
pingrp = "gpiol_pins";
};
pctl_gpio_m: pctl-gpio-m { /* GPIO bank M */
pingrp = "gpiom_pins";
};
/* Port 8 */
pctl_spi3: pctl-spi3 {
pingrp = "spi3_pins";
};
/* Port 9 */
pctl_spi1: pctl-spi1 {
pingrp = "spi1_pins";
};
pctl_gpio_n: pctl-gpio-n {
pingrp = "gpion_pins";
};
/* Unmuxed GPIOs */
pctl_gpio_b: pctl-gpio-b {
pingrp = "gpiob_pins";
};
pctl_gpio_d: pctl-gpio-d {
pingrp = "gpiod_pins";
};
pctl_gpio_f: pctl-gpio-f {
pingrp = "gpiof_pins";
};
pctl_gpio_h: pctl-gpio-h {
pingrp = "gpioh_pins";
};
pctl_gpio_i: pctl-gpio-i {
pingrp = "gpioi_pins";
};
};
gpioa: gpio@FF140000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 1>;
reg = <0xFF140000 0x1000>;
gpio-controller;
#gpio-cells = <1>;
gpio-base = <0>;
gpio-pins = <&pctl_gpio_a>;
};
gpiob: gpio@FF141000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 1>;
reg = <0xFF141000 0x1000>;
gpio-controller;
#gpio-cells = <1>;
gpio-base = <3>;
gpio-pins = <&pctl_gpio_b>;
};
gpioc: gpio@FF142000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 1>;
reg = <0xFF142000 0x1000>;
gpio-controller;
#gpio-cells = <1>;
gpio-base = <5>;
gpio-pins = <&pctl_gpio_c>;
};
gpiod: gpio@FF143000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 1>;
reg = <0xFF143000 0x1000>;
gpio-controller;
#gpio-cells = <1>;
gpio-base = <8>;
gpio-pins = <&pctl_gpio_d>;
};
gpioe: gpio@FF144000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 1>;
reg = <0xFF144000 0x1000>;
gpio-controller;
#gpio-cells = <1>;
gpio-base = <10>;
gpio-pins = <&pctl_gpio_e>;
};
gpiof: gpio@FF145000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 1>;
reg = <0xFF145000 0x1000>;
gpio-controller;
#gpio-cells = <1>;
gpio-base = <13>;
gpio-pins = <&pctl_gpio_f>;
};
gpiog: gpio@FF146000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 1>;
reg = <0xFF146000 0x1000>;
gpio-controller;
#gpio-cells = <1>;
gpio-base = <15>;
gpio-pins = <&pctl_gpio_g>;
};
gpioh: gpio@FF147000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 1>;
reg = <0xFF147000 0x1000>;
gpio-controller;
#gpio-cells = <1>;
gpio-base = <18>;
gpio-pins = <&pctl_gpio_h>;
};
gpioi: gpio@FF148000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 1>;
reg = <0xFF148000 0x1000>;
gpio-controller;
#gpio-cells = <1>;
gpio-base = <20>;
gpio-pins = <&pctl_gpio_i>;
};
gpioj: gpio@FF149000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 1>;
reg = <0xFF149000 0x1000>;
gpio-controller;
#gpio-cells = <1>;
gpio-base = <32>;
gpio-pins = <&pctl_gpio_j>;
};
gpiok: gpio@FF14a000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 1>;
reg = <0xFF14A000 0x1000>;
gpio-controller;
#gpio-cells = <1>;
gpio-base = <64>;
gpio-pins = <&pctl_gpio_k>;
};
gpiol: gpio@FF14b000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 1>;
reg = <0xFF14B000 0x1000>;
gpio-controller;
#gpio-cells = <1>;
gpio-base = <86>;
gpio-pins = <&pctl_gpio_l>;
};
gpiom: gpio@FF14c000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 1>;
reg = <0xFF14C000 0x1000>;
gpio-controller;
#gpio-cells = <1>;
gpio-base = <90>;
gpio-pins = <&pctl_gpio_m>;
};
gpion: gpio@FF14d000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&tb10x_ictl>;
interrupts = <27 1>;
reg = <0xFF14D000 0x1000>;
gpio-controller;
#gpio-cells = <1>;
gpio-base = <94>;
gpio-pins = <&pctl_gpio_n>;
};
};
};
/*
* Abilis Systems TB100 Development Kit PCB device tree
*
* Copyright (C) Abilis Systems 2013
*
* Author: Christian Ruppert <christian.ruppert@abilis.com>
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/dts-v1/;
/include/ "abilis_tb100.dtsi"
/ {
chosen {
bootargs = "earlycon=uart8250,mmio32,0xff100000,9600n8 console=ttyS0,9600n8";
};
aliases { };
memory {
device_type = "memory";
reg = <0x80000000 0x08000000>; /* 128M */
};
soc100 {
uart@FF100000 {
pinctrl-names = "abilis,simple-default";
pinctrl-0 = <&pctl_uart0>;
};
ethernet@FE100000 {
phy-mode = "rgmii";
};
i2c0: i2c@FF120000 {
sda-hold-time = <432>;
};
i2c1: i2c@FF121000 {
sda-hold-time = <432>;
};
i2c2: i2c@FF122000 {
sda-hold-time = <432>;
};
i2c3: i2c@FF123000 {
sda-hold-time = <432>;
};
i2c4: i2c@FF124000 {
sda-hold-time = <432>;
};
leds {
compatible = "gpio-leds";
power {
label = "Power";
gpios = <&gpioi 0>;
linux,default-trigger = "default-on";
};
heartbeat {
label = "Heartbeat";
gpios = <&gpioi 1>;
linux,default-trigger = "heartbeat";
};
led2 {
label = "LED2";
gpios = <&gpioi 2>;
default-state = "off";
};
led3 {
label = "LED3";
gpios = <&gpioi 3>;
default-state = "off";
};
led4 {
label = "LED4";
gpios = <&gpioi 4>;
default-state = "off";
};
led5 {
label = "LED5";
gpios = <&gpioi 5>;
default-state = "off";
};
led6 {
label = "LED6";
gpios = <&gpioi 6>;
default-state = "off";
};
led7 {
label = "LED7";
gpios = <&gpioi 7>;
default-state = "off";
};
led8 {
label = "LED8";
gpios = <&gpioi 8>;
default-state = "off";
};
led9 {
label = "LED9";
gpios = <&gpioi 9>;
default-state = "off";
};
led10 {
label = "LED10";
gpios = <&gpioi 10>;
default-state = "off";
};
led11 {
label = "LED11";