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2015-02-07xtensa: xtfpga: add audio card to xtfpga DTSMax Filippov
This includes OpenCores I2C host controller, TI CDCE706 clock generator, xtfpga I2S master controller, xtfpga SPI master controller, TI TLV320AIC23 audio codec and a simple audio card. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-10-21xtensa: nommu: fix uImage load addressMax Filippov
Use the same offset from the default physical memory start address as in LOAD_MEMORY_ADDRESS definition. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-10-21xtensa: nommu: fix Image.elf reset code and ld scriptMax Filippov
Don't hardcode kernel entry address as 0x3000 or 0xd0003000, use LOAD_MEMORY_ADDRESS macro. Don't compile MMU remapping code and don't try to link it when building noMMU configuration. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-10-21xtensa: xtfpga: add lx200 SMP DTS and defconfigMax Filippov
This config allows running SMP-enabled bitstream on LX200 board. NFS or FLASH rootfs, minimal debug, up to 4 cores. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-08-14xtensa: configure kc705 for highmemMax Filippov
Enable all memory available on KC705 (1G - 128M) by default. Update memory node in DTS and also limit usable memory in bootargs in case memmap is passed from the bootloader. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-04-06xtensa: add support for KC705Max Filippov
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-04-06xtensa: xtfpga: introduce SoC I/O busMax Filippov
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-02-21xtensa: xtfpga: set ethoc clock frequencyMax Filippov
Connect xtfpga board ethernet MAC to the clock in the DTS. Set up MAC base frequency in the platform data in case of build w/o CONFIG_OF. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-02-21xtensa: xtfpga: use common clock frameworkMax Filippov
With this change the board needs to set up single clock object, users of this clock will get correct frequency automatically. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-01-15xtensa: standardize devicetree cpu compatible stringsBaruch Siach
The recommended compatible string format, according to the ePAPR v1.1 standard, is "manufacturer,model". Change the xtensa cpu compatible strings to "cdns,xtensa-cpu". Also, change the boards compatible strings in a similar way. The pic compatible string will be dealt with in a separate patch. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-01-14xtensa: move built-in PIC to drivers/irqchipMax Filippov
Extract xtensa built-in interrupt controller implementation from xtensa/kernel/irq.c and move it to other irqchips, providing way to instantiate it from the device tree. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2013-09-06xtensa: don't use echo -e needlesslyMax Filippov
-e is not needed to output strings without escape sequences. This breaks big endian FSF build when the shell is dash, because its builtin echo doesn't understand '-e' switch and outputs it in the echoed string. Reported-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2013-07-08xtensa: add static function tracer supportMax Filippov
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2013-07-08xtensa: tell git to ignore generated .dtb filesBaruch Siach
Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2013-07-08xtensa: tell git to ignore copied zlib source filesBaruch Siach
Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Chris Zankel <chris@zankel.net>
2013-06-05xtensa: tell git to ignore generated filesBaruch Siach
Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2013-05-09xtensa: fix redboot load addressChris Zankel
With the patch to support MMUv3, the base address for the loaded binary image has changed, and a fix was applied to the U-Boot image. This fixes the RedBoot image. Signed-off-by: Chris Zankel <chris@zankel.net>
2013-05-09xtensa: add MMU v3 supportMax Filippov
MMUv3 comes out of reset with identity vaddr -> paddr mapping in the TLB way 6: Way 6 (512 MB) Vaddr Paddr ASID Attr RWX Cache ---------- ---------- ---- ---- --- ------- 0x00000000 0x00000000 0x01 0x03 RWX Bypass 0x20000000 0x20000000 0x01 0x03 RWX Bypass 0x40000000 0x40000000 0x01 0x03 RWX Bypass 0x60000000 0x60000000 0x01 0x03 RWX Bypass 0x80000000 0x80000000 0x01 0x03 RWX Bypass 0xa0000000 0xa0000000 0x01 0x03 RWX Bypass 0xc0000000 0xc0000000 0x01 0x03 RWX Bypass 0xe0000000 0xe0000000 0x01 0x03 RWX Bypass This patch adds remapping code at the reset vector or at the kernel _start (depending on CONFIG_INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX) that reconfigures MMUv3 as MMUv2: Way 5 (128 MB) Vaddr Paddr ASID Attr RWX Cache ---------- ---------- ---- ---- --- ------- 0xd0000000 0x00000000 0x01 0x07 RWX WB 0xd8000000 0x00000000 0x01 0x03 RWX Bypass Way 6 (256 MB) Vaddr Paddr ASID Attr RWX Cache ---------- ---------- ---- ---- --- ------- 0xe0000000 0xf0000000 0x01 0x07 RWX WB 0xf0000000 0xf0000000 0x01 0x03 RWX Bypass Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2013-02-23xtensa: use new common dtc ruleStephen Warren
The current rules have the .dtb files build in a different directory from the .dts files. This patch changes xtensa to use the generic dtb rule which builds .dtb files in the same directory as the source .dts. This requires moving parts of arch/xtensa/boot/Makefile into newly created arch/xtensa/boot/dts/Makefile, and updating arch/xtensa/Makefile to call the new Makefile. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-12-18xtensa: don't try to build DTB when OF is disabledMax Filippov
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-12-18xtensa: add XTFPGA DTSMax Filippov
Add common XTFPGA parts as *.dtsi (base board, flash) and DTS for LX60 and for ML605. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-12-18xtensa: add support for the XTFPGA boardsMax Filippov
The Avnet LX60/LX110/LX200 board is an FPGA board that can be configured with an Xtensa processor and an OpenCores Ethernet device. Signed-off-by: Chris Zankel <chris@zankel.net> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-12-18xtensa: add device trees supportMax Filippov
Device trees allow specification of hardware topology and device parameters at runtime instead of hard-coding them in platform setup code. This allows running single binary kernel on a range of compatible boards. New boot parameters tag BP_TAG_FDT is allocated and a pointer to flat device tree is passed in it. Note that current interrupt mapping scheme uses single cell for interrupt identification. That means that IRQ numbers used in DTS must be CPU internal IRQ numbers, not external. It is possible to extend interrupt identification to two cells, and use second cell to tell external IRQ numbers form internal. That would allow to use single DTS on multiple boards with different mapping of external IRQ numbers. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-12-18xtensa: add U-Boot image support (uImage).Max Filippov
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-12-18xtensa: clean up boot make rulesMax Filippov
- remove duplicate rules for binary and packed image - use predefined macros for ld/objcopy/gzip - remove build-id section from bootable elf image Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-15xtensa: reorganize SR referencingMax Filippov
- reference SRs by names where possible, not by numbers; - get rid of __stringify around SR names where possible; - remove unneeded SR names from asm/regs.h; - add SREG_ prefix to remaining SR names; Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-03xtensa: drop CONFIG_EMBEDDED_RAMDISKMax Filippov
Remove Kconfig entries, boot subdirectory, dependencies from other boot-* Makefiles, and sections from ld scripts. Remove stale redboot code that used to pass initrd addresses in a3 and a4 to _start. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-03xtensa: fix parallel makeMax Filippov
Make vmlinux.tmp and vmlinux.tmp.gz separate build targets, avoid removing vmlinux.tmp during vmlinux.tmp.gz build. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2011-03-17xtensa: change to new flag variablematt mooney
Replace EXTRA_CFLAGS with ccflags-y. Signed-off-by: matt mooney <mfm@muteddisk.com> Acked-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2008-11-06xtensa: move headers files to arch/xtensa/includeChris Zankel
Move all header files for xtensa to arch/xtensa/include and platform and variant header files to the appropriate arch/xtensa/platforms/ and arch/xtensa/variants/ directories. Moving the files gets also rid of all uses of symlinks in the Makefile. This has been completed already for the majority of the architectures and xtensa is one out of six missing. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Chris Zankel <chris@zankel.net>
2008-02-13[XTENSA] Fix makefile to work with binutils-2.18.Bob Wilson
When building with binutils-2.18, vmlinux includes .note.gnu.build-id sections that need to be stripped out when building the binary image. The old .xt.insn sections haven't been used for a long time, so don't bother stripping them. Signed-off-by: Bob Wilson <bob.wilson@acm.org> Signed-off-by: Chris Zankel <chris@zankel.net>
2008-02-13[XTENSA] Use preprocessor to generate the linker script for the ELF boot imageChris Zankel
Signed-off-by: Marc Gauthier <marc@tensilica.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2008-02-13[XTENSA] adjust boot linker script start addressesMarc Gauthier
Move boot-redboot load address from 0xD0200000 to 0xD1000000 to make space for larger kernel images, in particular those with an embedded initramfs filesystem. Also properly set the ELF start address in boot-elf images so that PC need not be set manually when loading them using GDB. Signed-off-by: Marc Gauthier <marc@tensilica.com>
2007-10-20kbuild: restore arch/{ppc/xtensa}/boot cflagsMilton Miller
Commit 9a39e273d4df0560c724c5fe71f6314a0583ca2b removed the boot directory addition to CFLAGS that was being used by the subdirectory builds. For the other files, that patch set EXTRA_CFLAGS, but Makefile.build explicitly sets that to empty as it is explicitly for a single directory only. Append to KBUILD_CFLAGS instead. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-10-14kbuild: enable 'make CFLAGS=...' to add additional options to CCSam Ravnborg
The variable CFLAGS is a wellknown variable and the usage by kbuild may result in unexpected behaviour. On top of that several people over time has asked for a way to pass in additional flags to gcc. This patch replace use of CFLAGS with KBUILD_CFLAGS all over the tree and enabling one to use: make CFLAGS=... to specify additional gcc commandline options. One usecase is when trying to find gcc bugs but other use cases has been requested too. Patch was tested on following architectures: alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k Test was simple to do a defconfig build, apply the patch and check that nothing got rebuild. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-10-14kbuild: fix up CFLAGS usageSam Ravnborg
Only in very rare cases is it needed to change CFLAGS outside of arch/*/Makefile. Fix up all wrong cases - in most cases the use of EXTRA_CFLAGS is the only thing needed. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-12-10[PATCH] xtensa: remove extra header filesChris Zankel
The Xtensa port contained many header files that were never needed. This rather lengthy patch removes all those files. Unfortunately, there were many dependencies that needed to be updated, so this patch touches quite a few source files. Signed-off-by: Chris Zankel <chris@zankel.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30Remove obsolete #include <linux/config.h>Jörn Engel
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-22[PATCH] zlib_inflate: Upgrade library code to a recent versionRichard Purdie
Upgrade the zlib_inflate implementation in the kernel from a patched version 1.1.3/4 to a patched 1.2.3. The code in the kernel is about seven years old and I noticed that the external zlib library's inflate performance was significantly faster (~50%) than the code in the kernel on ARM (and faster again on x86_32). For comparison the newer deflate code is 20% slower on ARM and 50% slower on x86_32 but gives an approx 1% compression ratio improvement. I don't consider this to be an improvement for kernel use so have no plans to change the zlib_deflate code. Various changes have been made to the zlib code in the kernel, the most significant being the extra functions/flush option used by ppp_deflate. This update reimplements the features PPP needs to ensure it continues to work. This code has been tested on ARM under both JFFS2 (with zlib compression enabled) and ppp_deflate and on x86_32. JFFS2 sees an approx. 10% real world file read speed improvement. This patch also removes ZLIB_VERSION as it no longer has a correct value. We don't need version checks anyway as the kernel's module handling will take care of that for us. This removal is also more in keeping with the zlib author's wishes (http://www.zlib.net/zlib_faq.html#faq24) and I've added something to the zlib.h header to note its a modified version. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Acked-by: Joern Engel <joern@wh.fh-wedel.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-30[PATCH] xtensa: Removed local copy of zlib and fixed O= supportChris Zankel
Removed an unnecessary local copy of zlib (sorry for the add'l traffic). Fixed 'O=' support (thanks to Jan Dittmer for pointing it out). Some minor clean-ups in the make files. Signed-off-by: Chris Zankel <chris@zankel.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-24[PATCH] xtensa: Architecture support for Tensilica Xtensa Part 2Chris Zankel
The attached patches provides part 2 of an architecture implementation for the Tensilica Xtensa CPU series. Signed-off-by: Chris Zankel <chris@zankel.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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