#
50f6f34e |
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29-Sep-2022 |
Arnd Bergmann <arnd@arndb.de> |
ARM: footbridge: remove CATS Nobody seems to have a CATS machine any more, so remove it now, leaving only NetWinder and EBSA285. Cc: Russell King <linux@armlinux.org.uk> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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#
be7f3f90 |
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25-Aug-2022 |
Arnd Bergmann <arnd@arndb.de> |
ARM: footbridge: remove custom DMA address handling Footbridge is the last Arm platform that has its own __virt_to_bus()/__bus_to_virt()/phys_to_dma()/dma_to_phys() abstraction, but this is just a simple offset now. For PCI devices, the offset that is programmed into the PCI bridge must also be set in each device using dma_direct_set_offset(). As Arm does not have a pcibios_bus_add_device() helper yet, just use a bus notifier for this. For the ISA DMA, drivers now pass a non-translated physical address into set_dma_addr(), so they have to be converted back with the corresponding isa_bus_to_virt() function and then into the correct bus address with the offset using the isa_dma_dev. Tested-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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#
b519c9c7 |
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18-Aug-2022 |
Arnd Bergmann <arnd@arndb.de> |
ARM: footbridge: remove addin mode This does not appear to have been used in many years, we can kill off some of the uglier code. Among other things, it avoids a randconfig issue when both modes are disabled: arch/arm/mach-footbridge/common.c:149:24: error: 'ebsa285_host_io_desc' defined but not used [-Werror=unused-variable] 149 | static struct map_desc ebsa285_host_io_desc[] __initdata = { | ^~~~~~~~~~~~~~~~~~~~ arch/arm/mach-footbridge/common.c:136:24: error: 'fb_common_io_desc' defined but not used [-Werror=unused-variable] 136 | static struct map_desc fb_common_io_desc[] __initdata = { | ^~~~~~~~~~~~~~~~~ The recently added phys_to_dma() functions are now trivial and could probably be removed again as a follow-up, if anyone knows how. Cc: Christoph Hellwig <hch@lst.de> Tested-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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#
af6f23b8 |
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19-Apr-2022 |
Christoph Hellwig <hch@lst.de> |
ARM/dma-mapping: use the generic versions of dma_to_phys/phys_to_dma by default Only the footbridge platforms provide their own DMA address translation helpers, so switch to the generic version for all other platforms, and consolidate the footbridge implementation to remove two levels of indirection. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Tested-by: Marc Zyngier <maz@kernel.org>
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#
90890f17 |
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29-Nov-2021 |
Arnd Bergmann <arnd@arndb.de> |
ARM: footbridge: use GENERIC_IRQ_MULTI_HANDLER Footbridge still uses the classic IRQ entry path in assembler, but this is easily converted into an equivalent C version. In this case, the correlation between IRQ numbers and bits in the status register is non-obvious, and the priorities are handled by manually checking each bit in a static order, re-reading the status register after each handled event. I moved the code into the new file and edited the syntax without changing this sequence to keep the behavior as close as possible to what it traditionally did. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Tested-by: Marc Zyngier <maz@kernel.org> Tested-by: Vladimir Murzin <vladimir.murzin@arm.com> # ARMv7M Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
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#
e31cf2f4 |
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08-Jun-2020 |
Mike Rapoport <rppt@kernel.org> |
mm: don't include asm/pgtable.h if linux/mm.h is already included Patch series "mm: consolidate definitions of page table accessors", v2. The low level page table accessors (pXY_index(), pXY_offset()) are duplicated across all architectures and sometimes more than once. For instance, we have 31 definition of pgd_offset() for 25 supported architectures. Most of these definitions are actually identical and typically it boils down to, e.g. static inline unsigned long pmd_index(unsigned long address) { return (address >> PMD_SHIFT) & (PTRS_PER_PMD - 1); } static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address) { return (pmd_t *)pud_page_vaddr(*pud) + pmd_index(address); } These definitions can be shared among 90% of the arches provided XYZ_SHIFT, PTRS_PER_XYZ and xyz_page_vaddr() are defined. For architectures that really need a custom version there is always possibility to override the generic version with the usual ifdefs magic. These patches introduce include/linux/pgtable.h that replaces include/asm-generic/pgtable.h and add the definitions of the page table accessors to the new header. This patch (of 12): The linux/mm.h header includes <asm/pgtable.h> to allow inlining of the functions involving page table manipulations, e.g. pte_alloc() and pmd_alloc(). So, there is no point to explicitly include <asm/pgtable.h> in the files that include <linux/mm.h>. The include statements in such cases are remove with a simple loop: for f in $(git grep -l "include <linux/mm.h>") ; do sed -i -e '/include <asm\/pgtable.h>/ d' $f done Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Cain <bcain@codeaurora.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chris Zankel <chris@zankel.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greentime Hu <green.hu@gmail.com> Cc: Greg Ungerer <gerg@linux-m68k.org> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Guo Ren <guoren@kernel.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Helge Deller <deller@gmx.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Ley Foon Tan <ley.foon.tan@intel.com> Cc: Mark Salter <msalter@redhat.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Matt Turner <mattst88@gmail.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Simek <monstr@monstr.eu> Cc: Mike Rapoport <rppt@kernel.org> Cc: Nick Hu <nickhu@andestech.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Richard Weinberger <richard@nod.at> Cc: Rich Felker <dalias@libc.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Stafford Horne <shorne@gmail.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Vincent Chen <deanbo422@gmail.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Will Deacon <will@kernel.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Link: http://lkml.kernel.org/r/20200514170327.31389-1-rppt@kernel.org Link: http://lkml.kernel.org/r/20200514170327.31389-2-rppt@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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#
d2912cb1 |
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04-Jun-2019 |
Thomas Gleixner <tglx@linutronix.de> |
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
e8d36d5d |
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27-Jul-2015 |
Rob Herring <robh@kernel.org> |
ARM: kill off set_irq_flags usage set_irq_flags is ARM specific with custom flags which have genirq equivalents. Convert drivers to use the genirq interfaces directly, so we can kill off set_irq_flags. The translation of flags is as follows: IRQF_VALID -> !IRQ_NOREQUEST IRQF_PROBE -> !IRQ_NOPROBE IRQF_NOAUTOEN -> IRQ_NOAUTOEN For IRQs managed by an irqdomain, the irqdomain core code handles clearing and setting IRQ_NOREQUEST already, so there is no need to do this in .map() functions and we can simply remove the set_irq_flags calls. Some users also modify IRQ_NOPROBE and this has been maintained although it is not clear that is really needed. There appears to be a great deal of blind copy and paste of this code. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Sekhar Nori <nsekhar@ti.com> Cc: Kevin Hilman <khilman@deeprootsystems.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Cc: Gregory Clement <gregory.clement@free-electrons.com> Acked-by: Hans Ulli Kroll <ulli.kroll@googlemail.com> Acked-by: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Imre Kaloz <kaloz@openwrt.org> Acked-by: Krzysztof Halasa <khalasa@piap.pl> Cc: Greg Ungerer <gerg@uclinux.org> Cc: Roland Stigge <stigge@antcom.de> Cc: Tony Lindgren <tony@atomide.com> Cc: Daniel Mack <daniel@zonque.org> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: Robert Jarzmik <robert.jarzmik@free.fr> Cc: Simtec Linux Team <linux@simtec.co.uk> Cc: Kukjin Kim <kgene@kernel.org> Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Wan ZongShun <mcuos.com@gmail.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-omap@vger.kernel.org Cc: linux-samsung-soc@vger.kernel.org Tested-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
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#
43024ed6 |
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30-Nov-2013 |
Russell King <rmk+kernel@arm.linux.org.uk> |
ARM: footbridge: cleanup LEDs code 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>
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#
43659222 |
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28-Nov-2013 |
Russell King <rmk+kernel@arm.linux.org.uk> |
ARM: footbridge: fix VGA initialisation It's no good setting vga_base after the VGA console has been initialised, because if we do that we get this: Unable to handle kernel paging request at virtual address 000b8000 pgd = c0004000 [000b8000] *pgd=07ffc831, *pte=00000000, *ppte=00000000 0Internal error: Oops: 5017 [#1] ARM Modules linked in: CPU: 0 PID: 0 Comm: swapper Not tainted 3.12.0+ #49 task: c03e2974 ti: c03d8000 task.ti: c03d8000 PC is at vgacon_startup+0x258/0x39c LR is at request_resource+0x10/0x1c pc : [<c01725d0>] lr : [<c0022b50>] psr: 60000053 sp : c03d9f68 ip : 000b8000 fp : c03d9f8c r10: 000055aa r9 : 4401a103 r8 : ffffaa55 r7 : c03e357c r6 : c051b460 r5 : 000000ff r4 : 000c0000 r3 : 000b8000 r2 : c03e0514 r1 : 00000000 r0 : c0304971 Flags: nZCv IRQs on FIQs off Mode SVC_32 ISA ARM Segment kernel which is an access to the 0xb8000 without the PCI offset required to make it work. Fixes: cc22b4c18540 ("ARM: set vga memory base at run-time") Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Cc: <stable@vger.kernel.org>
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#
7b6d864b |
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08-Jul-2013 |
Robin Holt <holt@sgi.com> |
reboot: arm: change reboot_mode to use enum reboot_mode Preparing to move the parsing of reboot= to generic kernel code forces the change in reboot_mode handling to use the enum. [akpm@linux-foundation.org: fix arch/arm/mach-socfpga/socfpga.c] Signed-off-by: Robin Holt <holt@sgi.com> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Russ Anderson <rja@sgi.com> Cc: Robin Holt <holt@sgi.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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#
8ef6e620 |
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01-Mar-2012 |
Rob Herring <rob.herring@calxeda.com> |
ARM: footbridge: use fixed PCI i/o mapping Move footbridge PCI to fixed i/o mapping. io.h is still needed for the !MMU case. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Russell King <linux@arm.linux.org.uk> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
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#
9f97da78 |
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28-Mar-2012 |
David Howells <dhowells@redhat.com> |
Disintegrate asm/system.h for ARM Disintegrate asm/system.h for ARM. Signed-off-by: David Howells <dhowells@redhat.com> cc: Russell King <linux@arm.linux.org.uk> cc: linux-arm-kernel@lists.infradead.org
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#
6fca1e17 |
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03-Nov-2011 |
Russell King <rmk+kernel@arm.linux.org.uk> |
ARM: restart: footbridge: use new restart hook Hook these platforms restart code into the new restart hook rather than using arch_reset(). Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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#
f38c02f3 |
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24-Mar-2011 |
Thomas Gleixner <tglx@linutronix.de> |
arm: Fold irq_set_chip/irq_set_handler Use irq_set_chip_and_handler() instead. Converted with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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#
6845664a |
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24-Mar-2011 |
Thomas Gleixner <tglx@linutronix.de> |
arm: Cleanup the irq namespace Convert to the new function names. Automated with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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#
dc2caf6c |
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29-Nov-2010 |
Lennert Buytenhek <buytenh@wantstofly.org> |
ARM: footbridge: irq_data conversion. Signed-off-by: Lennert Buytenhek <buytenh@secretlab.ca> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
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#
64dd3b74 |
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18-Jul-2010 |
wanzongshun <mcuos.com@gmail.com> |
ARM: 6233/1: Delete a wrong redundant right parenthesis Delete a wrong redundant right parenthesis in arch/arm/mach-footbridge/common.c Signed-off-by: Wan ZongShun <mcuos.com@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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#
2b0d8c25 |
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11-Jan-2010 |
Jeremy Kerr <jeremy.kerr@canonical.com> |
ARM: 5880/1: arm: use generic infrastructure for early params The ARM setup code includes its own parser for early params, there's also one in the generic init code. This patch removes __early_init (and related code) from arch/arm/kernel/setup.c, and changes users to the generic early_init macro instead. The generic macro takes a char * argument, rather than char **, so we need to update the parser functions a little. Signed-off-by: Jeremy Kerr <jeremy.kerr@canonical.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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#
c7baab5d |
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12-Dec-2009 |
Russell King <rmk+kernel@arm.linux.org.uk> |
ARM: fix clps711x, footbridge, integrator, ixp2000, ixp2300 and s3c build bug Anders Grafström reports that footbridge fails to build after 1c4a4f4. Fix this by adding the necessary definitions for __pfn_to_bus and __bus_to_pfn. Reported-by: Anders Grafström <anders.grafstrom@netinsight.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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#
39ebfd3f |
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08-Jan-2009 |
Ben Dooks <ben-linux@fluff.org> |
[ARM] footbridge: add isa_init_irq() to common header isa_init_irq() is defined in arch/arm/mach-footbridge/isa-irq.c and used in arch/arm/mach-footbridge/common.c but there is no definition in any header. Move the definition in common.c to common.h to stop the sparse warning: isa-irq.c:118:13: warning: symbol 'isa_init_irq' was not declared. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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#
613e09b4 |
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30-Dec-2008 |
Russell King <rmk@dyn-67.arm.linux.org.uk> |
[ARM] footbridge: set dc21285 clock rate from command line Allow the footbridge clock rate to be specified on the kernel command line. This allows us to work-around broken Personal Server firmware. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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#
70d13e08 |
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06-Dec-2008 |
Russell King <rmk@dyn-67.arm.linux.org.uk> |
[ARM] netwinder: clean up GPIO naming 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>
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#
fced80c7 |
|
05-Sep-2008 |
Russell King <rmk@dyn-67.arm.linux.org.uk> |
[ARM] Convert asm/io.h to linux/io.h Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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#
e055d5bf |
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21-Apr-2008 |
Adrian Bunk <bunk@kernel.org> |
[ARM] 5015/1: arm: remove ARCH_CO285 Trying to compile a kerel for ARCH_CO285 fails with the following error: <-- snip --> ... CC arch/arm/mach-footbridge/dc21285.o /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/arm/mach-footbridge/dc21285.c: In function 'dc21285_base_address': /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/arm/mach-footbridge/dc21285.c:54: error: 'PCICFG0_BASE' undeclared (first use in this function) /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/arm/mach-footbridge/dc21285.c:54: error: (Each undeclared identifier is reported only once /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/arm/mach-footbridge/dc21285.c:54: error: for each function it appears in.) /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/arm/mach-footbridge/dc21285.c:57: error: 'PCICFG1_BASE' undeclared (first use in this function) /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/arm/mach-footbridge/dc21285.c: In function 'dc21285_scan_bus': /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/arm/mach-footbridge/dc21285.c:286: error: implicit declaration of function 'pci_scan_bus' ... make[2]: *** [arch/arm/mach-footbridge/dc21285.o] Error 1 <-- snip --> This does not seem to be a recent breakage. The ARCH_CO285 support is old - kernel 2.2.0 contains first traces of it, an it seems to have been pretty complete in later 2.2 kernels. Since it seems to be completely dead code now this patch therefore removes it. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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#
10dd5ce2 |
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23-Nov-2006 |
Russell King <rmk@dyn-67.arm.linux.org.uk> |
[ARM] Remove compatibility layer for ARM irqs set_irq_chipdata -> set_irq_chip_data get_irq_chipdata -> get_irq_chip_data do_level_IRQ -> handle_level_irq do_edge_IRQ -> handle_edge_irq do_simple_IRQ -> handle_simple_irq irqdesc -> irq_desc irqchip -> irq_chip Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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#
6ab3d562 |
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30-Jun-2006 |
Jörn Engel <joern@wohnheim.fh-wedel.de> |
Remove obsolete #include <linux/config.h> Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
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#
865052fd |
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13-Nov-2005 |
Russell King <rmk@dyn-67.arm.linux.org.uk> |
[ARM] Re-fix footbridge That's __phys_to_pfn, not __phy_to_pfn. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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#
6460177f |
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12-Nov-2005 |
Russell King <rmk@dyn-67.arm.linux.org.uk> |
[ARM] Fix Footbridge-based machines Unfortunately, all these machines got broken when the PFN memory setup changes happened. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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#
a427ceef |
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28-Oct-2005 |
Deepak Saxena <dsaxena@plexity.net> |
[ARM] 2998/1: Replace map_desc.physical with map_desc.pfn: Footbridge Patch from Deepak Saxena Footbridge map_desc.pfn conversion Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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#
1da177e4 |
|
16-Apr-2005 |
Linus Torvalds <torvalds@ppc970.osdl.org> |
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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