summaryrefslogtreecommitdiffstats
path: root/Documentation/arm
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/arm')
-rw-r--r--Documentation/arm/IXP4xx2
-rw-r--r--Documentation/arm/Interrupts2
-rw-r--r--Documentation/arm/README4
-rw-r--r--Documentation/arm/Samsung-S3C24XX/GPIO.txt23
-rw-r--r--Documentation/arm/Samsung-S3C24XX/Overview.txt37
-rw-r--r--Documentation/arm/Samsung-S3C24XX/USB-Host.txt2
6 files changed, 58 insertions, 12 deletions
diff --git a/Documentation/arm/IXP4xx b/Documentation/arm/IXP4xx
index 43edb4ecf27..72fbcc4fcab 100644
--- a/Documentation/arm/IXP4xx
+++ b/Documentation/arm/IXP4xx
@@ -32,7 +32,7 @@ Linux currently supports the following features on the IXP4xx chips:
- Flash access (MTD/JFFS)
- I2C through GPIO on IXP42x
- GPIO for input/output/interrupts
- See include/asm-arm/arch-ixp4xx/platform.h for access functions.
+ See arch/arm/mach-ixp4xx/include/mach/platform.h for access functions.
- Timers (watchdog, OS)
The following components of the chips are not supported by Linux and
diff --git a/Documentation/arm/Interrupts b/Documentation/arm/Interrupts
index c202ed35d7d..f09ab1b90ef 100644
--- a/Documentation/arm/Interrupts
+++ b/Documentation/arm/Interrupts
@@ -158,7 +158,7 @@ So, what's changed?
be re-checked for pending events. (see the Neponset IRQ handler for
details).
-7. fixup_irq() is gone, as is include/asm-arm/arch-*/irq.h
+7. fixup_irq() is gone, as is arch/arm/mach-*/include/mach/irq.h
Please note that this will not solve all problems - some of them are
hardware based. Mixing level-based and edge-based IRQs on the same
diff --git a/Documentation/arm/README b/Documentation/arm/README
index 9b9c8226fdc..d98783fbe0c 100644
--- a/Documentation/arm/README
+++ b/Documentation/arm/README
@@ -79,7 +79,7 @@ Machine/Platform support
To this end, we now have arch/arm/mach-$(MACHINE) directories which are
designed to house the non-driver files for a particular machine (eg, PCI,
memory management, architecture definitions etc). For all future
- machines, there should be a corresponding include/asm-arm/arch-$(MACHINE)
+ machines, there should be a corresponding arch/arm/mach-$(MACHINE)/include/mach
directory.
@@ -176,7 +176,7 @@ Kernel entry (head.S)
class typically based around one or more system on a chip devices, and
acts as a natural container around the actual implementations. These
classes are given directories - arch/arm/mach-<class> and
- include/asm-arm/arch-<class> - which contain the source files to
+ arch/arm/mach-<class> - which contain the source files to/include/mach
support the machine class. This directories also contain any machine
specific supporting code.
diff --git a/Documentation/arm/Samsung-S3C24XX/GPIO.txt b/Documentation/arm/Samsung-S3C24XX/GPIO.txt
index 8caea8c237e..ea7ccfc4b27 100644
--- a/Documentation/arm/Samsung-S3C24XX/GPIO.txt
+++ b/Documentation/arm/Samsung-S3C24XX/GPIO.txt
@@ -13,16 +13,31 @@ Introduction
data-sheet/users manual to find out the complete list.
+GPIOLIB
+-------
+
+ With the event of the GPIOLIB in drivers/gpio, support for some
+ of the GPIO functions such as reading and writing a pin will
+ be removed in favour of this common access method.
+
+ Once all the extant drivers have been converted, the functions
+ listed below will be removed (they may be marked as __deprecated
+ in the near future).
+
+ - s3c2410_gpio_getpin
+ - s3c2410_gpio_setpin
+
+
Headers
-------
- See include/asm-arm/arch-s3c2410/regs-gpio.h for the list
+ See arch/arm/mach-s3c2410/include/mach/regs-gpio.h for the list
of GPIO pins, and the configuration values for them. This
- is included by using #include <asm/arch/regs-gpio.h>
+ is included by using #include <mach/regs-gpio.h>
The GPIO management functions are defined in the hardware
- header include/asm-arm/arch-s3c2410/hardware.h which can be
- included by #include <asm/arch/hardware.h>
+ header arch/arm/mach-s3c2410/include/mach/hardware.h which can be
+ included by #include <mach/hardware.h>
A useful amount of documentation can be found in the hardware
header on how the GPIO functions (and others) work.
diff --git a/Documentation/arm/Samsung-S3C24XX/Overview.txt b/Documentation/arm/Samsung-S3C24XX/Overview.txt
index d04e1e30c47..cff6227b448 100644
--- a/Documentation/arm/Samsung-S3C24XX/Overview.txt
+++ b/Documentation/arm/Samsung-S3C24XX/Overview.txt
@@ -8,9 +8,10 @@ Introduction
The Samsung S3C24XX range of ARM9 System-on-Chip CPUs are supported
by the 's3c2410' architecture of ARM Linux. Currently the S3C2410,
- S3C2412, S3C2413, S3C2440 and S3C2442 devices are supported.
+ S3C2412, S3C2413, S3C2440, S3C2442 and S3C2443 devices are supported.
+
+ Support for the S3C2400 and S3C24A0 series are in progress.
- Support for the S3C2400 series is in progress.
Configuration
-------------
@@ -36,7 +37,23 @@ Layout
in arch/arm/mach-s3c2410 and S3C2440 in arch/arm/mach-s3c2440
Register, kernel and platform data definitions are held in the
- include/asm-arm/arch-s3c2410 directory.
+ arch/arm/mach-s3c2410 directory./include/mach
+
+arch/arm/plat-s3c24xx:
+
+ Files in here are either common to all the s3c24xx family,
+ or are common to only some of them with names to indicate this
+ status. The files that are not common to all are generally named
+ with the initial cpu they support in the series to ensure a short
+ name without any possibility of confusion with newer devices.
+
+ As an example, initially s3c244x would cover s3c2440 and s3c2442, but
+ with the s3c2443 which does not share many of the same drivers in
+ this directory, the name becomes invalid. We stick to s3c2440-<x>
+ to indicate a driver that is s3c2440 and s3c2442 compatible.
+
+ This does mean that to find the status of any given SoC, a number
+ of directories may need to be searched.
Machines
@@ -159,6 +176,17 @@ NAND
For more information see Documentation/arm/Samsung-S3C24XX/NAND.txt
+SD/MMC
+------
+
+ The SD/MMC hardware pre S3C2443 is supported in the current
+ kernel, the driver is drivers/mmc/host/s3cmci.c and supports
+ 1 and 4 bit SD or MMC cards.
+
+ The SDIO behaviour of this driver has not been fully tested. There is no
+ current support for hardware SDIO interrupts.
+
+
Serial
------
@@ -178,6 +206,9 @@ GPIO
The core contains support for manipulating the GPIO, see the
documentation in GPIO.txt in the same directory as this file.
+ Newer kernels carry GPIOLIB, and support is being moved towards
+ this with some of the older support in line to be removed.
+
Clock Management
----------------
diff --git a/Documentation/arm/Samsung-S3C24XX/USB-Host.txt b/Documentation/arm/Samsung-S3C24XX/USB-Host.txt
index b93b68e2b14..67671eba423 100644
--- a/Documentation/arm/Samsung-S3C24XX/USB-Host.txt
+++ b/Documentation/arm/Samsung-S3C24XX/USB-Host.txt
@@ -49,7 +49,7 @@ Board Support
Platform Data
-------------
- See linux/include/asm-arm/arch-s3c2410/usb-control.h for the
+ See arch/arm/mach-s3c2410/include/mach/usb-control.h for the
descriptions of the platform device data. An implementation
can be found in linux/arch/arm/mach-s3c2410/usb-simtec.c .