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Author SHA1 Message Date
Kees Jongenburger 7e11828c6e arm:create SoC specific bsp directory and move code to there. 
Created a new directory called bsp (board support package) to hold
board or system on chip specific code. The idea is the following.

Change-Id: Ica5886806940facae2fa5492fcc938b3c2b989be
 2014-02-07 11:14:39 +01:00
Kees Jongenburger 502bc37a61 arm:indenting 
Change-Id: I2f8f664fa4c66649db8981e58e6bb7a6f533df5a
 2014-01-07 11:18:26 +01:00
Kees Jongenburger aa94c9ed55 arm:switch to dynamic configuration for the kernel. 
During startup machine.board_id is now determined. The kernel can now
at runtime determine how to configure itself and does so.

Change-Id: I4f615af9bfa5add219e618b911a51af127591d6a
 2013-12-17 11:32:38 +01:00
Kees Jongenburger ed45d98dac arm:ensure read_tsc_64 always returns a valid value. 
Before this change overflowing the free running clock counter
between the time the timer was read and the time the overflow
check was done resulted in read_tsc_64 returning a to high value.

Change-Id: I1022f271213647f720477c4121d45f0c965456c6
 2013-09-27 11:29:04 +02:00
Kees Jongenburger e4be0ceecf arm:timer changes. 
* Allow to change the timer frequency using the hz paramter.
* Unmask the interrupt only after registering the handler.
* Pass the hz parameter in the command line.
 2013-09-26 09:05:44 +02:00
Ben Gras c8f3b10909 fix a few more minix specific warnings 
. also disable stack protection feature for gcc,
	  causes build errors for pkgsrc gcc on minix

Change-Id: I1c6e2bcb4d948098d642543d7b2711284ee55c72
 2013-08-27 16:16:03 +00:00
Ben Gras 8e7c0604bd arm timer fix 
. set 'done' once initialized so 32-bit read frc works,
	  thanks to keesj
	. make sure the software-implemented upper 32 bit of the 64-bit
	  "tsc" value works OK by adding an assert in one of its calls

Change-Id: I5ce24fea919f4610c6a86ac7ec9f04b1815620c2
 2013-06-19 13:11:32 +02:00
Kees Jongenburger a5a693a046 arm:no longer rely on a 1:1 phys mapping for device memory. 
Change-Id: Ie3f61069f882c37dbb81dee813fdfd883e7468cf
 2013-06-12 16:42:12 +02:00
Kees Jongenburger 3139ce9631 arm:omap timers remove hardcoded base address. 
Omap timers remove hardcoded base address and add some initial
support for the beaglebone's timers. Frclock_util will need
refactoring to remain independent of the ARM flavour.

Change-Id: I2b5d04e930364262c81b5686de634c0a51796b23
 2013-05-24 14:03:14 +02:00
Ben Gras 8ea66915f2 kernel: scheduling fix for ARM 
. make read_tsc_64 use the free-running clock, significantly
	  improving scheduling behaviour

Change-Id: Idf6a12f6e26be7fe3b3664c278cae846d8b2a442
 2013-02-03 22:49:05 +01:00
Thomas Veerman db8c1ee9d0 ARM: provide free running clock to replace ccnt 
The Cycle CouNTer on ARM cannot be used reliably as it wraps around
rather quickly and can be altered by user space (on Minix). Furthermore,
it's buggy when wrapping and is not implemented at all on the Linaro
Beagleboard emulator.

This patch programs GPTIMER10 as a free running clock at 1.625 MHz (it
doesn't generate interrupts). It's memory mapped into every process,
which enables libsys to provide micro_delay().

Change-Id: Iba004c6c62976762fe154ea390d69e518eec1531
 2013-01-31 15:19:11 +00:00
Lionel Sambuc b1c4ba4ab6 ARM updates 
Due to the ABI we are using we have to use the earm architecture
moniker for the build system to behave correctly. This involves
then some headers to move around.

There is also a few related Makefile updates as well as minor
source code corrections.
 2013-01-17 10:03:58 +01:00
Renamed from kernel/arch/arm/omap_timer.c (Browse further)