Document the UNCACHEABLE_ADDR definitions for footbridge and SA1100
so that we know where they're located and/or what they're accessing.
Change RiscPC to calculate the UNCACHEABLE_ADDR value from FLUSH_BASE
as that's where we locate that.
UNCACHEABLE_ADDR is used to perform an uncached access (ARMv4
terminology) necessary to force a CPU clock-switch to the memory-
speed clock, as required for entering WFI.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Cleanup the LEDs code to use ioremap()/writeb() to access the register.
This allows us to move the definitions out of a header file directly
into the ebsa285 support code.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Annotate the low level hardware locks which must not be preempted.
In mainline this change documents the low level nature of
the lock - otherwise there's no functional difference. Lockdep
and Sparse checking will work as usual.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Convert PCIBIOS_MIN_IO and PCIBIOS_MIN_MEM to variables to allow
multi-platform builds. This also removes the requirement for a platform to
have a mach/hardware.h.
The default values for i/o and mem are 0x1000 and 0x01000000, respectively.
Per Arnd Bergmann, other values are likely to be incorrect, but this commit
does not try to address that issue.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Convert pcibios_assign_all_busses from a define to inline so platforms can
control this setting.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Use the correct I/O address definitions for Footbridge
peripherals when the kernel is compiled without MMU
support.
Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Netwinder was using gpio_xxx names which could clash with the GPIO
layer. Add a 'nw_' prefix to ensure that these remain separate.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Avoid unnecessarily pollution of the kernel's namespace by avoiding
mach/hardware.h in mach/io.h. Include this header file where necessary.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
