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path: root/firmware/target/arm/imx31/crt0.S
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2012-04-06arm: factor all exception handlers out of the crt0.S filesAmaury Pouly
Remove the implementations of all exceptions handlers from the various crt0.S files and have a single implementation in system-arm.h The new implementation is weak so that it can be overwritten by some specific code (like the unwinder) Change-Id: Ib3e041ed6037376bbe0e79286057e1051640dd90 Reviewed-on: http://gerrit.rockbox.org/205 Reviewed-by: Marcin Bukat <marcin.bukat@gmail.com>
2011-12-17Commit to certain names for cache coherency APIs and discard the aliases.Michael Sevakis
Wouldn't surprise me a bit to get some non-green. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31339 a1c6a512-1295-4272-9138-f99709370657
2011-10-14i.MX31: Simplify nested interrupt handling. Give SVC mode its own stack by ↵Michael Sevakis
grabbing the FIQ stack that's just been taking up space. Just get rid of all FIQ setup since it isn't used anyway. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30747 a1c6a512-1295-4272-9138-f99709370657
2011-10-11Switch to SYS mode on arm FS#12322 by meMarcin Bukat
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30741 a1c6a512-1295-4272-9138-f99709370657
2011-01-21Gigabeat S: Renovate bootloader a bit to show splash, implement verbose, ↵Michael Sevakis
shutdown on low battery, handle hold-switch-on and wait only so long for USB if a USB charger is inserted at boot instead of being connected to a host. 'Bootloader USB mode' display is just part of normal printf stream now. Move interrupt stacks into .bss area so they aren't loaded (for firmware too). git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29099 a1c6a512-1295-4272-9138-f99709370657
2010-06-11Configure Gigabeat S with EABI compiler by default. Implement the INIT ↵Michael Sevakis
section that this enables (due to selective need for long calls). Remove pcm_postinit from INIT section since it's asynchronous. Disable strict aliasing on SPC codec for now just to shut it up. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26779 a1c6a512-1295-4272-9138-f99709370657
2010-05-31ARM: use BX when branch to an address in registerRafaël Carré
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26432 a1c6a512-1295-4272-9138-f99709370657
2010-05-08Clean the DCache just before going to main because areas were written by ↵Michael Sevakis
init code that need to be coherent (.ncbss and .sdmacode). git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25896 a1c6a512-1295-4272-9138-f99709370657
2010-05-08Gigabeat S: Reclaim about 800K of memory that was laying unused. Get rid of ↵Michael Sevakis
DEVBSS_ATTR for this target and implement as NOCACHEBSS_ATTR. Plugin and codec buffers move so all that is now incompatible (do full update). No version increase for plugins/codecs because the loader will reject them. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25895 a1c6a512-1295-4272-9138-f99709370657
2010-05-03Gigabeat S: Those odd calls to irq_handler can still happen rarely after ↵Michael Sevakis
executing WFI. With no explanation forthcoming after trying many things, hide head in sand and ignore them and the IRQ will get vectored to the correct handler anyway. Have vector tables execute an immediate return and remove irq_handler from compilation altogether. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25792 a1c6a512-1295-4272-9138-f99709370657
2010-01-24ARM: lr addresses the next instruction after the failing one in undefined ↵Rafaël Carré
instruction vector Substract 4 before passing the argument to UIE so the correct address is displayed git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24321 a1c6a512-1295-4272-9138-f99709370657
2009-12-31Enable and initialize VFP on imx31. VFP state is not saved on thread change, ↵Andrew Mahone
and it is initialized for scalar operations, rounding toward zero, with exception/error handling and "correct" handling of NaN and denormal values disabled. In this mode it should still be usable for integer divisions (by casting operands to double and result to int or unsigned). git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24129 a1c6a512-1295-4272-9138-f99709370657
2009-02-10Gigabeat S: Update some very stale comments about what's going on in the ↵Michael Sevakis
startup code. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19965 a1c6a512-1295-4272-9138-f99709370657
2009-02-10Gigabeat S: Place SDMA code load address starting in uninitialized section ↵Michael Sevakis
address and copy it to the plugin buffer since it only needed very early in initialization. Will save about 6K in RAM. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19963 a1c6a512-1295-4272-9138-f99709370657
2009-02-07Gigabeat S: Move the LCD framebuffer address so that DRAM can be mapped flat ↵Michael Sevakis
between physical and virtual addresses. NO BOOTLOADER UPDATE SHOULD BE NEEDED. The firmware image now handles low-level system setup as well. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19935 a1c6a512-1295-4272-9138-f99709370657
2008-06-28Updated our source code header to explicitly mention that we are GPL v2 orDaniel Stenberg
later. We still need to hunt down snippets used that are not. 1324 modified files... http://www.rockbox.org/mail/archive/rockbox-dev-archive-2008-06/0060.shtml git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17847 a1c6a512-1295-4272-9138-f99709370657
2008-05-13Gigabeat S system setup changes. Unaligned loads/stores on. Mixed-endian ↵Michael Sevakis
support on. VIC on early. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17495 a1c6a512-1295-4272-9138-f99709370657
2008-05-11Enable write buffering for the 1MB device memory section. This means using a ↵Michael Sevakis
different device framebuffer address too. You must update the firmware _and_ bootloader. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17458 a1c6a512-1295-4272-9138-f99709370657
2008-05-10Real fake IRAM by placing .i.... section in the analagous DRAM sections in ↵Michael Sevakis
the linker scripts that hasn't done this yet. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17449 a1c6a512-1295-4272-9138-f99709370657
2008-05-07Gigabeat S technical correction: Fix instruction order because clean dcache ↵Michael Sevakis
operand is SBZ. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17401 a1c6a512-1295-4272-9138-f99709370657
2008-04-29Remove wrong usage of '.global'. These symbols are imported, not exported.Jens Arnold
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17290 a1c6a512-1295-4272-9138-f99709370657
2008-04-21Enable program flow prediction in the system control coprocessor setup in ↵Michael Sevakis
the bootloader. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17211 a1c6a512-1295-4272-9138-f99709370657
2008-04-18UMS for the Gigabeat S. Bootloader USB mode. Has a couple quirks 1) First ↵Michael Sevakis
plug has problems if cold. Replug if it doesn't connect or not at high speed 2) Linux doesn't like the odd bootable flag value used in the partitions so it won't mount but Windows works. Fix minor OTG driver bugs and clean up device memory handling. Generic name for ARC controller driver. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17154 a1c6a512-1295-4272-9138-f99709370657
2008-02-08Gigabeat S: Interrupt enabled bootloader. Miscellaneous integration changes.Michael Sevakis
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16243 a1c6a512-1295-4272-9138-f99709370657
2008-02-05Gigabeat S mixer: Make some progress. Get the tick and core sleep working ↵Michael Sevakis
using the AVIC. Redo the startup code to remap from IRAM and not include the lcd driver frambuffer in the remapping (until it can be moved). Clean up LCD driver. For other misc. changes, see the diffs. Now it progresses to ATA init and fails with -11 but without crashing or hanging. Replace all bootloaders. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16216 a1c6a512-1295-4272-9138-f99709370657
2007-12-23Gigabeat S memory management stuff. Will Robertson
* Moved crt0.S to imx31 subdirectory, as it was the last target using the unified file. * DRAM is now remapped to 0x0, facilitating interrupts (which aren't done yet) git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15965 a1c6a512-1295-4272-9138-f99709370657
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