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r: 272965
b: refs/heads/master
c: 94314a4
h: refs/heads/master
i:
  272963: a65f006
v: v3
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Arnd Bergmann committed Oct 31, 2011
1 parent 6848f8a commit aee2068
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2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 929f58aeeb46f964d9468ce1addd993f5d92b11d
refs/heads/master: 94314a40bcc537c396012e37cf887572f0d82aef
55 changes: 55 additions & 0 deletions trunk/Documentation/devicetree/bindings/arm/gic.txt
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* ARM Generic Interrupt Controller

ARM SMP cores are often associated with a GIC, providing per processor
interrupts (PPI), shared processor interrupts (SPI) and software
generated interrupts (SGI).

Primary GIC is attached directly to the CPU and typically has PPIs and SGIs.
Secondary GICs are cascaded into the upward interrupt controller and do not
have PPIs or SGIs.

Main node required properties:

- compatible : should be one of:
"arm,cortex-a9-gic"
"arm,arm11mp-gic"
- interrupt-controller : Identifies the node as an interrupt controller
- #interrupt-cells : Specifies the number of cells needed to encode an
interrupt source. The type shall be a <u32> and the value shall be 3.

The 1st cell is the interrupt type; 0 for SPI interrupts, 1 for PPI
interrupts.

The 2nd cell contains the interrupt number for the interrupt type.
SPI interrupts are in the range [0-987]. PPI interrupts are in the
range [0-15].

The 3rd cell is the flags, encoded as follows:
bits[3:0] trigger type and level flags.
1 = low-to-high edge triggered
2 = high-to-low edge triggered
4 = active high level-sensitive
8 = active low level-sensitive
bits[15:8] PPI interrupt cpu mask. Each bit corresponds to each of
the 8 possible cpus attached to the GIC. A bit set to '1' indicated
the interrupt is wired to that CPU. Only valid for PPI interrupts.

- reg : Specifies base physical address(s) and size of the GIC registers. The
first region is the GIC distributor register base and size. The 2nd region is
the GIC cpu interface register base and size.

Optional
- interrupts : Interrupt source of the parent interrupt controller. Only
present on secondary GICs.

Example:

intc: interrupt-controller@fff11000 {
compatible = "arm,cortex-a9-gic";
#interrupt-cells = <3>;
#address-cells = <1>;
interrupt-controller;
reg = <0xfff11000 0x1000>,
<0xfff10100 0x100>;
};

46 changes: 36 additions & 10 deletions trunk/arch/arm/Kconfig
Original file line number Diff line number Diff line change
Expand Up @@ -196,7 +196,8 @@ config VECTORS_BASE
The base address of exception vectors.

config ARM_PATCH_PHYS_VIRT
bool "Patch physical to virtual translations at runtime"
bool "Patch physical to virtual translations at runtime" if EMBEDDED
default y
depends on !XIP_KERNEL && MMU
depends on !ARCH_REALVIEW || !SPARSEMEM
help
Expand All @@ -205,16 +206,25 @@ config ARM_PATCH_PHYS_VIRT
kernel in system memory.

This can only be used with non-XIP MMU kernels where the base
of physical memory is at a 16MB boundary, or theoretically 64K
for the MSM machine class.
of physical memory is at a 16MB boundary.

config ARM_PATCH_PHYS_VIRT_16BIT
def_bool y
depends on ARM_PATCH_PHYS_VIRT && ARCH_MSM
Only disable this option if you know that you do not require
this feature (eg, building a kernel for a single machine) and
you need to shrink the kernel to the minimal size.

config NEED_MACH_MEMORY_H
bool
help
Select this when mach/memory.h is required to provide special
definitions for this platform. The need for mach/memory.h should
be avoided when possible.

config PHYS_OFFSET
hex "Physical address of main memory"
depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
help
This option extends the physical to virtual translation patching
to allow physical memory down to a theoretical minimum of 64K
boundaries.
Please provide the physical address corresponding to the
location of main memory in your system.

source "init/Kconfig"

Expand Down Expand Up @@ -247,6 +257,7 @@ config ARCH_INTEGRATOR
select GENERIC_CLOCKEVENTS
select PLAT_VERSATILE
select PLAT_VERSATILE_FPGA_IRQ
select NEED_MACH_MEMORY_H
help
Support for ARM's Integrator platform.

Expand All @@ -262,6 +273,7 @@ config ARCH_REALVIEW
select PLAT_VERSATILE_CLCD
select ARM_TIMER_SP804
select GPIO_PL061 if GPIOLIB
select NEED_MACH_MEMORY_H
help
This enables support for ARM Ltd RealView boards.

Expand Down Expand Up @@ -302,7 +314,6 @@ config ARCH_AT91
select ARCH_REQUIRE_GPIOLIB
select HAVE_CLK
select CLKDEV_LOOKUP
select ARM_PATCH_PHYS_VIRT if MMU
help
This enables support for systems based on the Atmel AT91RM9200,
AT91SAM9 and AT91CAP9 processors.
Expand All @@ -323,6 +334,7 @@ config ARCH_CLPS711X
bool "Cirrus Logic CLPS711x/EP721x-based"
select CPU_ARM720T
select ARCH_USES_GETTIMEOFFSET
select NEED_MACH_MEMORY_H
help
Support for Cirrus Logic 711x/721x based boards.

Expand Down Expand Up @@ -363,6 +375,7 @@ config ARCH_EBSA110
select ISA
select NO_IOPORT
select ARCH_USES_GETTIMEOFFSET
select NEED_MACH_MEMORY_H
help
This is an evaluation board for the StrongARM processor available
from Digital. It has limited hardware on-board, including an
Expand All @@ -378,6 +391,7 @@ config ARCH_EP93XX
select ARCH_REQUIRE_GPIOLIB
select ARCH_HAS_HOLES_MEMORYMODEL
select ARCH_USES_GETTIMEOFFSET
select NEED_MEMORY_H
help
This enables support for the Cirrus EP93xx series of CPUs.

Expand All @@ -386,6 +400,7 @@ config ARCH_FOOTBRIDGE
select CPU_SA110
select FOOTBRIDGE
select GENERIC_CLOCKEVENTS
select NEED_MACH_MEMORY_H
help
Support for systems based on the DC21285 companion chip
("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Expand Down Expand Up @@ -435,6 +450,7 @@ config ARCH_IOP13XX
select PCI
select ARCH_SUPPORTS_MSI
select VMSPLIT_1G
select NEED_MACH_MEMORY_H
help
Support for Intel's IOP13XX (XScale) family of processors.

Expand Down Expand Up @@ -465,6 +481,7 @@ config ARCH_IXP23XX
select CPU_XSC3
select PCI
select ARCH_USES_GETTIMEOFFSET
select NEED_MACH_MEMORY_H
help
Support for Intel's IXP23xx (XScale) family of processors.

Expand All @@ -474,6 +491,7 @@ config ARCH_IXP2000
select CPU_XSCALE
select PCI
select ARCH_USES_GETTIMEOFFSET
select NEED_MACH_MEMORY_H
help
Support for Intel's IXP2400/2800 (XScale) family of processors.

Expand Down Expand Up @@ -567,6 +585,7 @@ config ARCH_KS8695
select CPU_ARM922T
select ARCH_REQUIRE_GPIOLIB
select ARCH_USES_GETTIMEOFFSET
select NEED_MACH_MEMORY_H
help
Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
System-on-Chip devices.
Expand Down Expand Up @@ -658,6 +677,7 @@ config ARCH_SHMOBILE
select SPARSE_IRQ
select MULTI_IRQ_HANDLER
select PM_GENERIC_DOMAINS if PM
select NEED_MACH_MEMORY_H
help
Support for Renesas's SH-Mobile and R-Mobile ARM platforms.

Expand All @@ -672,6 +692,7 @@ config ARCH_RPC
select NO_IOPORT
select ARCH_SPARSEMEM_ENABLE
select ARCH_USES_GETTIMEOFFSET
select NEED_MACH_MEMORY_H
help
On the Acorn Risc-PC, Linux can support the internal IDE disk and
CD-ROM interface, serial and parallel port, and the floppy drive.
Expand All @@ -690,6 +711,7 @@ config ARCH_SA1100
select HAVE_SCHED_CLOCK
select TICK_ONESHOT
select ARCH_REQUIRE_GPIOLIB
select NEED_MACH_MEMORY_H
help
Support for StrongARM 11x0 based boards.

Expand Down Expand Up @@ -782,6 +804,7 @@ config ARCH_S5PV210
select HAVE_S3C2410_I2C if I2C
select HAVE_S3C_RTC if RTC_CLASS
select HAVE_S3C2410_WATCHDOG if WATCHDOG
select NEED_MACH_MEMORY_H
help
Samsung S5PV210/S5PC110 series based systems

Expand All @@ -798,6 +821,7 @@ config ARCH_EXYNOS4
select HAVE_S3C_RTC if RTC_CLASS
select HAVE_S3C2410_I2C if I2C
select HAVE_S3C2410_WATCHDOG if WATCHDOG
select NEED_MACH_MEMORY_H
help
Samsung EXYNOS4 series based systems

Expand All @@ -809,6 +833,7 @@ config ARCH_SHARK
select ZONE_DMA
select PCI
select ARCH_USES_GETTIMEOFFSET
select NEED_MACH_MEMORY_H
help
Support for the StrongARM based Digital DNARD machine, also known
as "Shark" (<http://www.shark-linux.de/shark.html>).
Expand Down Expand Up @@ -836,6 +861,7 @@ config ARCH_U300
select CLKDEV_LOOKUP
select HAVE_MACH_CLKDEV
select GENERIC_GPIO
select NEED_MACH_MEMORY_H
help
Support for ST-Ericsson U300 series mobile platforms.

Expand Down
3 changes: 3 additions & 0 deletions trunk/arch/arm/Makefile
Original file line number Diff line number Diff line change
Expand Up @@ -128,6 +128,9 @@ textofs-$(CONFIG_PM_H1940) := 0x00108000
ifeq ($(CONFIG_ARCH_SA1100),y)
textofs-$(CONFIG_SA1111) := 0x00208000
endif
textofs-$(CONFIG_ARCH_MSM7X30) := 0x00208000
textofs-$(CONFIG_ARCH_MSM8X60) := 0x00208000
textofs-$(CONFIG_ARCH_MSM8960) := 0x00208000

# Machine directory name. This list is sorted alphanumerically
# by CONFIG_* macro name.
Expand Down
1 change: 1 addition & 0 deletions trunk/arch/arm/common/Kconfig
Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
config ARM_GIC
select IRQ_DOMAIN
bool

config ARM_VIC
Expand Down
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