- Sep 18, 2009
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David Daney authored
Add a platform device for the Octeon Random Number Generator (RNG). Signed-off-by:
David Daney <ddaney@caviumnetworks.com> Acked-by:
Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Ralf Baechle authored
Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Manuel Lauss authored
Eliminate the 'allow_au1k_wait' variable. MIPS kernel installs the Alchemy-specific wait code before timer initialization; if the C0 timer must be used for timekeeping the wait function is set to NULL which means no wait implementation is available. As a sideeffect, the 'wait instruction available' output in /proc/cpuinfo now correctly indicates whether 'wait' is usable. Run-tested on DB1200. Signed-off-by:
Manuel Lauss <manuel.lauss@gmail.com> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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David Daney authored
Signed-off-by:
David Daney <ddaney@caviumnetworks.com> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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David Daney authored
On some CPUs, it is more efficient to disable and enable interrupts in the kernel rather than use ll/sc for atomic operations. But if we were to set cpu_has_llsc to false, we would break the userspace futex interface (in asm/futex.h). We separate the two concepts, with a new predicate kernel_uses_llsc, that lets us disable the kernel's use of ll/sc while still allowing the futex code to use it. Also there were a couple of cases in bitops.h where we were using ll/sc unconditionally even if cpu_has_llsc were false. Signed-off-by:
David Daney <ddaney@caviumnetworks.com> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Ralf Baechle authored
CONFIG_CPU_HAS_LLSC duplicated the function of cpu_has_llsc for no good reason and and the results if the one was enabled and the other disabled was very unobvious. Remove it now that there are no more remaining users. Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Ralf Baechle authored
All CPUs for Malta support LL/SC. Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Ralf Baechle authored
This also means there is now only one implementation not 3 left. Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Ralf Baechle authored
This way it doesn't have to use CONFIG_CPU_HAS_LLSC anymore. Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Ralf Baechle authored
Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Nelson Elhage authored
This patch results in fewer output sections and in some data being reordered, but should have no functional impact. Signed-off-by:
Nelson Elhage <nelhage@ksplice.com> Signed-off-by:
Tim Abbott <tabbott@ksplice.com> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Nelson Elhage authored
Now that PAGE_SIZE is available to assembly directly, there is no need to separately expose it as _PAGE_SIZE through asm-offsets. In addition, remove _PAGE_SHIFT from asm-offsets, since it was never needed, and is not used anywhere. Signed-off-by:
Nelson Elhage <nelhage@ksplice.com> Signed-off-by:
Tim Abbott <tabbott@ksplice.com> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Christoph Hellwig authored
Signed-off-by:
Christoph Hellwig <hch@lst.de> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Florian Fainelli authored
This patch makes the board code register the ar7_wdt driver as a platform device. We move the dynamic resource calculation here since the driver should not be aware of the AR7 SoC version it is running on. Signed-off-by:
Florian Fainelli <florian@openwrt.org> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Wu Zhangjin authored
Signed-off-by:
Wu Zhangjin <wuzhangjin@gmail.com> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Wu Zhangjin authored
Because only gcc >=4.4 have loongson-specific support, we need to choose the suitable -march argument for gcc <= 4.3 and gcc >= 4.4, and here, we use -march=loongson2e for loongson2e. Thanks goes to Arnaud Patard <apatard@mandriva.com> for suggestion of using cc-options(Documentation/kbuild/makefiles.txt). and thanks Zhang Le for introducing the new CPU_LOONGSON2E kernel option. NOTE: -mtune option is not need if -march and -mtune use the same value. Signed-off-by:
Zhang Le <r0bertz@gentoo.org> Signed-off-by:
Wu Zhangjin <wuzhangjin@gmail.com> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Wu Zhangjin authored
The difference between some loongson-based machines is very small, so, if there is no necessary to add new kernel config options to cope with this difference, it will be better to share the same kernel image file between them, benefit from this, the linux distribution developers only have a need to compile the kernel one time. This machtype kernel command line argument will be used later to share the same kernel image file between two different machines(menglong & yeeloong) made by lemote. Thanks very much to Zhang Le for cleaning up the machtype implementation. Signed-off-by:
Wu Zhangjin <wuzhangjin@gmail.com> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Wu Zhangjin authored
To share common loongson source code between all of the loongson-based machines. there is a need to split it out of the fuloong-2e/ directory. at the same time, other according tuning is needed. the machine-specific parts are defined as macros in relative header file, pci.h, mem.h, machine.h. Signed-off-by:
Wu Zhangjin <wuzhangjin@gmail.com> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Wu Zhangjin authored
To make source code of loongson sharable to the machines(such as gdium) made by the other companies, we rename arch/mips/lemote to arch/mips/loongson, asm/mach-lemote to asm/mach-loongson, and rename lm2e to the name of the machine: fuloong-2e. accordingly, FULONG are renamed to FULOONG2E to make it distinguishable to the future FULOONG2F. and also, some other relative tuning is needed. Signed-off-by:
Wu Zhangjin <wuzhangjin@gmail.com> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Wu Zhangjin authored
This kernel support is needed by the user-space tool:oprofile to profile linux kernel or applications via loongson2 performance counters. you can enable this driver via CONFIG_OPROFILE = y or m. On Loongson2 there are two performance counters, each one can count 16 events respectively. when anyone of the performance counter overflows, an interrupt will be generated and is routed to the IRQ MIPS_CPU_IRQ_BASE + 6. Signed-off-by:
Yanhua <yanh@lemote.com> Signed-off-by:
Wu Zhangjin <wuzj@lemote.com> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Wu Zhangjin authored
RTC_LIB is selected by MIPS by default, and therefore, the legacy RTC driver is disabled. but fortunately, RTC_LIB not works on fulong, so, enabling the legcy RTC driver is needed, otherwise, the tools like hwclock will not work. Signed-off-by:
Wu Zhangjin <wuzj@lemote.com> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Wu Zhangjin authored
Fixup the wrong original comment of pcimap, and make the source code more understandable. and also, some new extra consideration is added in. Signed-off-by:
Wu Zhangjin <wuzhangjin@gmail.com> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Wu Zhangjin authored
With the help of script/checkpatch.pl, i have cleaned up the coding style. 1. remove un-needed header files and tune some comments. 2. remove some un-needed { } add a new header file loongson.h: 3. move some common header files to loongson.h 4. move some common extern declartions to loongson.h and this new header file is needed for future loongson2f support. Signed-off-by:
Wu Zhangjin <wuzj@lemote.com> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Wu Zhangjin authored
This patch split the old initilization and setup implementation to several file, one file one logic function. the other main changes include: 1. as the script/checkpatch.pl suggests, use strict_strtol instead of simple_strtol in arch/mips/lemote/lm2e/cmdline.c 2. use the existed macros in asm/mips-boards/bonito64.h as the arguments of set_io_port_base() and remove the un-needed ones in asm/mach-lemote/pci.h Signed-off-by:
Wu Zhangjin <wuzj@lemote.com> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Wu Zhangjin authored
mips_io_port_base is initialized via set_io_port_base() in arch/mips/lemote/lm2e/setup.c, we can use it directly here. Signed-off-by:
Wu Zhangjin <wuzj@lemote.com> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Wu Zhangjin authored
Several magic numbers have been replaced by relative macros, which will be more readable and understandable. Signed-off-by:
Wu Zhangjin <wuzj@lemote.com> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Wu Zhangjin authored
The implmentation of loongson2e_power_off and loongson2e_halt is almostly the same, just preserve one of them. Signed-off-by:
Wu Zhangjin <wuzj@lemote.com> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Wu Zhangjin authored
This patch is based on the implementation in the lm2e-fixes branch of Philippe's git://git.linux-cisco.org/linux-mips.git and the malta-specific early_printk implementation. Signed-off-by:
Wu Zhangjin <wuzj@lemote.com> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Wu Zhangjin authored
Since the re-implementation of kgdb by commit 88547001 the platform-specific version has become superfluous, remove it. Signed-off-by:
Wu Zhangjin <wuzj@lemote.com> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Wu Zhangjin authored
Removes the existing implementation of early_printk for fulong. The old implementation was based on the outdated board-specific dbg_io.c. Since commit 8d60a903 dbg_io.c is not longer needed; it will be removed by the next patch, and a new implementation of early_printk will be added later. Signed-off-by:
Wu Zhangjin <wuzj@lemote.com> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Ralf Baechle authored
Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Ralf Baechle authored
Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Ralf Baechle authored
Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Ralf Baechle authored
Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Ralf Baechle authored
Since 2.6.11-rc1 there is a prototype in <linux/smp.h>. Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Julia Lawall authored
Error handling code following a kzalloc should free the allocated data. Error handling code following an ioremap should iounmap the allocated data. The semantic match that finds the first problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @r exists@ local idexpression x; statement S; expression E; identifier f,f1,l; position p1,p2; expression *ptr != NULL; @@ x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...); ... if (x == NULL) S <... when != x when != if (...) { <+...x...+> } ( x->f1 = E | (x->f1 == NULL || ...) | f(...,x->f1,...) ) ...> ( return \(0\|<+...x...+>\|ptr\); | return@p2 ...; ) @script:python@ p1 << r.p1; p2 << r.p2; @@ print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line) // </smpl> Signed-off-by:
Julia Lawall <julia@diku.dk> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Atsushi Nemoto authored
Some TC35815 variants (i.e. TX493[89] internal ether) report existance of PM registers though they are not supported. Disable PM features by clearing pdev->pm_cap. Signed-off-by:
Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Nelson Elhage authored
page.h includes ifndef __ASSEMBLY__ guards, but PAGE_SIZE and some other constants are defined using "1UL", which the assembler does not support. Use the _AC macro from const.h to make them available to assembly (and linker scripts). Signed-off-by:
Nelson Elhage <nelhage@ksplice.com> Signed-off-by:
Tim Abbott <tabbott@ksplice.com> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Manuel Lauss authored
Some drivers use gpio_request/gpio_free regardless of whether gpiolib is actually built; add stubs to work around the ensuing compile failures. Signed-off-by:
Manuel Lauss <manuel.lauss@gmail.com> Tested-by:
Florian Fainelli <florian@openwrt.org> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Alexey Dobriyan authored
Header needed for current_cpu_data which expands to smp_processor_id(). However, linux/smp.h can't be included into asm/cpu-info.h due to horrible circular dependencies, so plug it here. Signed-off-by:
Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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