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* ARM: footbridge: trim down old ISA rtc setupRussell King2009-12-246-174/+73
| | | | | | | | | | This fixes a "start_kernel(): bug: interrupts were enabled early". rtc_cmos now takes care of initializing the ISA RTC and reading the current time and date from it; there's no need to repeat that here, thereby causing interrupts to be enabled too early. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: fix clps711x, footbridge, integrator, ixp2000, ixp2300 and s3c build bugRussell King2009-12-132-9/+28
| | | | | | | | | 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>
* [ARM] pass reboot command line to arch_reset()Russell King2009-03-191-1/+1
| | | | | | | | | | | | | | | OMAP wishes to pass state to the boot loader upon reboot in order to instruct it whether to wait for USB-based reflashing or not. There is already a facility to do this via the reboot() syscall, except we ignore the string passed to machine_restart(). This patch fixes things to pass this string to arch_reset(). This means that we keep the reboot mode limited to telling the kernel _how_ to perform the reboot which should be independent of what we request the boot loader to do. Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Merge branch 'dma' into develRussell King2009-02-211-5/+7
|\ | | | | | | | | | | Conflicts: arch/arm/plat-mxc/dma-mx1-mx2.c
| * [ARM] dma: rejig DMA initializationRussell King2008-12-111-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Rather than having the central DMA multiplexer call the architecture specific DMA initialization function, have each architecture DMA initialization function use core_initcall(), and register each DMA channel separately with the multiplexer. This removes the array of dma structures in the central multiplexer, replacing it with an array of pointers instead; this is more flexible since it allows the drivers to wrap the DMA structure (eventually allowing us to transition non-ISA DMA drivers away.) Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] dma: remove dmach_t typedefRussell King2008-12-081-3/+3
| | | | | | | | | | | | Remove a pointless integer typedef. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | Merge branch 'devel'Russell King2009-01-081-0/+7
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| * | [ARM] footbridge: set dc21285 clock rate from command lineRussell King2008-12-301-0/+7
| | | | | | | | | | | | | | | | | | | | | 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>
* | | [ARM] footbridge: dc21285.c warning fixesBen Dooks2009-01-081-10/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The dc21285 requests a number of IRQs that it doesn't really care whether they get added. Change to use a macro that ensures that at-least the user gets warned if they fail to add, which also stops the warnings from __unused_result on request_irq(). dc21285.c:337: warning: ignoring return value of 'request_irq', declared with attribute warn_unused_result dc21285.c:339: warning: ignoring return value of 'request_irq', declared with attribute warn_unused_result dc21285.c:341: warning: ignoring return value of 'request_irq', declared with attribute warn_unused_result dc21285.c:343: warning: ignoring return value of 'request_irq', declared with attribute warn_unused_result dc21285.c:345: warning: ignoring return value of 'request_irq', declared with attribute warn_unused_result Signed-off-by: Ben Dooks <ben-linux@fluff.org>
* | | [ARM] footbridge: add isa_init_irq() to common headerBen Dooks2009-01-083-2/+3
|/ / | | | | | | | | | | | | | | | | | | | | 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>
* / [ARM] netwinder: clean up GPIO namingRussell King2008-12-1311-35/+43
|/ | | | | | | 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>
* [ARM] Rename ISA mach/dma.h header to mach/isa-dma.hRussell King2008-11-291-1/+1
| | | | | | | This avoids confusion with platform specific DMA implementations in mach/dma.h Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] footbridge: mach/hardware.h doesn't require mach/memory.hRussell King2008-11-281-2/+0
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] footbridge: avoid polluting the kernel's namespaceRussell King2008-11-282-4/+2
| | | | | | | Avoid unnecessarily pollution of the kernel's namespace by avoiding mach/hardware.h in mach/io.h. Include this header file where necessary. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] remove a common set of __virt_to_bus definitionsNicolas Pitre2008-11-281-0/+9
| | | | | | | | | | | | | | | | Let's provide an overridable default instead of having every machine class define __virt_to_bus and __bus_to_virt to the same thing. What most platforms are using is bus_addr == phys_addr so such is the default. One exception is ebsa110 which has no DMA what so ever, so the actual definition is not important except only for proper compilation. Also added a comment about the special footbridge bus translation. Let's also remove comments alluding to set_dma_addr which is not (and should not) be commonly used. Signed-off-by: Nicolas Pitre <nico@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Merge branch 'pxa-all' into develRussell King2008-10-091-2/+1
|\ | | | | | | | | | | | | | | | | Conflicts: arch/arm/mach-pxa/Kconfig arch/arm/mach-pxa/corgi.c arch/arm/mach-pxa/include/mach/hardware.h arch/arm/mach-pxa/spitz.c
| * [ARM] 5298/1: Drop desc_handle_irq()Dmitry Baryshkov2008-10-091-2/+1
| | | | | | | | | | | | | | | | desc_handle_irq() was declared as obsolete since long ago. Replace it with generic_handle_irq() Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | Merge branch 'ptebits' into develRussell King2008-10-091-9/+9
|\| | | | | | | | | | | Conflicts: arch/arm/Kconfig
| * [ARM] use bcd2bin/bin2bcdAdrian Bunk2008-08-271-9/+9
| | | | | | | | | | | | | | | | This patch changes arm to use the new bcd2bin/bin2bcd functions instead of the obsolete BCD_TO_BIN/BIN_TO_BCD macros. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [ARM] Convert asm/io.h to linux/io.hRussell King2008-09-069-9/+9
| | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [ARM] 5222/1: Allow configuring user:kernel split via KconfigLennert Buytenhek2008-09-011-10/+0
|/ | | | | | | | | This patch adds a config option (CONFIG_VMSPLIT_*) to allow choosing between 3:1, 2:2 and 1:3 user:kernel memory splits. Tested-by: Riku Voipio <riku.voipio@iki.fi> Signed-off-by: Lennert Buytenhek <buytenh@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] CATS: Do not try and map bad PCI IRQ numbersBen Dooks2008-08-091-0/+3
| | | | | | | | | | | | | The cats_map_irq() function in the Simtec CATS support code is mapping IRQ 255 (invalid IRQ) into what is a supposedly valid interrupt numner which can cause problems with other devices then seeing an interrupt they cannot claim. If the IRQ number if >= 255, then return -1 as this is not something we can map. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
* [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/machRussell King2008-08-0715-5/+644
| | | | | | This just leaves include/asm-arm/plat-* to deal with. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Remove asm/hardware.h, use asm/arch/hardware.h insteadRussell King2008-08-074-4/+4
| | | | | | | | | Remove includes of asm/hardware.h in addition to asm/arch/hardware.h. Then, since asm/hardware.h only exists to include asm/arch/hardware.h, update everything to directly include asm/arch/hardware.h and remove asm/hardware.h. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 5015/1: arm: remove ARCH_CO285Adrian Bunk2008-05-035-65/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* [ARM] Fix timer damage from d3d74453c34f8fd87674a8cf5b8a327c68f22e99Russell King2008-01-282-6/+0
| | | | | | | | | | | Move the xtime write mode seqlock into timer_tick(), so it only surrounds the call to do_timer(). This avoids a deadlock in update_process_times() ... hrtimer_get_softirq_time() which tries to get a read mode seqlock on xtime, thereby preventing booting. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Remove magic macros for screen_info structure membersH. Peter Anvin2007-10-171-3/+3
| | | | | | Stop using magic macros for screen_info structure members. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* [ARM] Add rtc-cmos driver for ISA-based footbridge platformsRussell King2007-10-131-1/+44
| | | | | | | | | ... but the rtc-cmos is rather broken; if PNP is enabled, it assumes that we have ACPI (!) which is quite bogus on these platforms - which may have ISAPNP but not ACPI. Something to be solved in the future. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Fix some section mismatch warningsRussell King2007-05-301-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | The following patch fixes these section mismatch warnings: WARNING: arch/arm/mach-at91/built-in.o(.text+0xdf4): Section mismatch: reference to .init.data:dk_nand_partition (between 'nand_partitions' and 'at91_leds_event') WARNING: arch/arm/mach-at91/built-in.o(.text+0xbdc): Section mismatch: reference to .init.data:ek_nand_partition (after 'nand_partitions') WARNING: arch/arm/mach-at91/built-in.o(.text+0xbdc): Section mismatch: reference to .init.data:ek_nand_partition (between 'nand_partitions' and 'ads7843_pendown_state') WARNING: arch/arm/mach-at91/built-in.o(.text+0xbdc): Section mismatch: reference to .init.data:ek_nand_partition (after 'nand_partitions') WARNING: arch/arm/mach-at91/built-in.o(.text+0xc28): Section mismatch: reference to .init.data:kb9202_nand_partition (after 'nand_partitions') WARNING: arch/arm/mach-footbridge/built-in.o(.text+0xaa4): Section mismatch: reference to .init.data:cats_pci (between 'cats_pci_init' and 'ebsa285_leds_event')WARNING: arch/arm/mach-ixp2000/built-in.o(.text+0xb54): Section mismatch: reference to .init.text:ixp2000_init_irq (between 'ixdp2x00_init_irq' and 'ixdp2x00_irq_handler') WARNING: arch/arm/mach-ixp23xx/built-in.o(.text+0x670): Section mismatch: reference to .init.text:ixp23xx_pci_common_init (between 'ixp23xx_pci_slave_init' and 'ixp23xx_pci_scan_bus') WARNING: arch/arm/mach-ixp23xx/built-in.o(.text+0x890): Section mismatch: reference to .init.text:ixp23xx_init_irq (between 'ixdp2351_init_irq' and 'roadrunner_pci_preinit') WARNING: arch/arm/mach-ixp23xx/built-in.o(.text+0x9a8): Section mismatch: reference to .init.text:ixp23xx_pci_preinit (after 'roadrunner_pci_preinit') WARNING: arch/arm/mach-imx/built-in.o(__ksymtab+0x80): Section mismatch: reference to .init.text:imx_set_mmc_info (between '__ksymtab_imx_set_mmc_info' and '__ksymtab_set_imx_fb_info') WARNING: arch/arm/mach-imx/built-in.o(__ksymtab+0x88): Section mismatch: reference to .init.text:set_imx_fb_info (after '__ksymtab_set_imx_fb_info') WARNING: arch/arm/mach-sa1100/built-in.o(.text+0x1930): Section mismatch: reference to .init.data:neponset_port_fns (between 'neponset_probe' and 'assabet_leds_event') WARNING: drivers/built-in.o(.text+0x3f100): Section mismatch: reference to .init.text:ps2_clear_input (between 'ps2_probe' and 'ps2_cmd_aborted') WARNING: drivers/built-in.o(.text+0x3f1c8): Section mismatch: reference to .init.text:ps2_clear_input (between 'ps2_probe' and 'ps2_cmd_aborted') WARNING: drivers/built-in.o(.text+0x4f988): Section mismatch: reference to .init.text:ps2_clear_input (between 'ps2_probe' and 'ps2_cmd_aborted') WARNING: drivers/built-in.o(.text+0x4fa50): Section mismatch: reference to .init.text:ps2_clear_input (between 'ps2_probe' and 'ps2_cmd_aborted') Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Add IRQF_IRQPOLL flag on armBernhard Walle2007-05-082-2/+2
| | | | | | | | | | | | Add IRQF_IRQPOLL for each timer interrupt. Signed-off-by: Bernhard Walle <bwalle@suse.de> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [ARM] Remove needless linux/ptrace.h includesRussell King2007-04-211-1/+0
| | | | | | | | | Lots of places in arch/arm were needlessly including linux/ptrace.h, resumably because we used to pass a struct pt_regs to interrupt handlers. Now that we don't, all these ptrace.h includes are redundant. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Remove compatibility layer for ARM irqsRussell King2006-11-302-7/+7
| | | | | | | | | | | | 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>
* [ARM] Fix fallout from IRQ regs changesRussell King2006-10-151-0/+1
| | | | | | | Some ARM platforms were still broken as a result of the IRQ register passing changes, mostly due to a missing linux/irq.h include. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Initial blind fixup for arm for irq changesLinus Torvalds2006-10-064-13/+13
| | | | | | | Untested, but this should fix up the bulk of the totally mechanical issues, and should make the actual detail fixing easier. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [ARM] 3759/2: Remove uses of %?Daniel Jacobowitz2006-09-201-12/+15
| | | | | | | | | | | | | | | | | | | | | | | Patch from Daniel Jacobowitz The ARM kernel has several uses of asm("foo%?"). %? is a GCC internal modifier used to output conditional execution predicates. However, no version of GCC supports conditionalizing asm statements. GCC 4.2 will correctly expand %? to the empty string in user asms. Earlier versions may reuse the condition from the previous instruction. In 'if (foo) asm ("bar%?");' this is somewhat likely to be right... but not reliable. So, the only safe thing to do is to remove the uses of %?. I believe the tlbflush.h occurances were supposed to be removed before, based on the comment about %? not working at the top of that file. Old versions of GCC could omit branches around user asms if the asm didn't mark the condition codes as clobbered. This problem hasn't been seen on any recent (3.x or 4.x) GCC, but it could theoretically happen. So, where %? was removed a cc clobber was added. Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Move prototype for register_isa_ports to asm/io.hRussell King2006-08-281-1/+0
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Fix cats buildRussell King2006-07-141-1/+1
| | | | | | | | | | Fix more fallout from 894673ee6122a3ce1958e1fe096901ba5356a96b. arch/arm/mach-footbridge/cats-hw.c: In function 'fixup_cats': arch/arm/mach-footbridge/cats-hw.c:81: error: 'ORIG_VIDEO_LINES' undeclared (first use in this function) ... Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Fix ISA IRQ resourcesRussell King2006-07-031-3/+16
| | | | | | | | The ISA IRQ code was not using named initialisers, so merging the 64-bit resource code (which re-ordered the struct members) broke this. Fix it up to use named initialisers. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM: fixup irqflags breakage after ARM genirq mergeThomas Gleixner2006-07-033-7/+7
| | | | | | | | | | The irgflags consolidation did conflict with the ARM to generic IRQ conversion and was not applied for ARM. Fix it up. Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [ARM] 3680/1: ARM: Convert footbridge to generic irq handlingThomas Gleixner2006-07-012-0/+2
| | | | | | | | | | | | Patch from Thomas Gleixner From: Thomas Gleixner <tglx@linutronix.de> Fixup the conversion to generic irq subsystem. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Remove obsolete #include <linux/config.h>Jörn Engel2006-06-305-5/+0
| | | | | Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [PATCH] RTC: Remove RTC UIP synchronization on ARMMatt Mackall2006-03-281-16/+1
| | | | | | | | Signed-off-by: Matt Mackall <mpm@selenic.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [ARM] Convert kmalloc+memset to kzallocRussell King2006-03-211-3/+1
| | | | | | Convert all uses of kmalloc followed by memset to use kzalloc instead. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3260/1: remove phys_ram from struct machine_desc (part 2)Nicolas Pitre2006-01-135-5/+0
| | | | | | | | | | | | Patch from Nicolas Pitre This field is redundent since it must be equal to PHYS_OFFSET anyway. Now that no code uses it anymore, mark it deprecated and remove all initializations from the tree. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM: Netwinder ds1620 driver needs an export to be built as moduleWoody Suwalski2006-01-091-0/+1
| | | | | | | | | | ds1620 module is using gpio_read symbol, so works only if "built-in" symbol needs to be exported from the kernel image Signed-off-by: Woody Suwalski <woodys@xandros.com> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [ARM] Cleanup ARM includesRussell King2006-01-031-0/+1
| | | | | | | | | | | | | | | | arch/arm/kernel/entry-armv.S has contained a comment suggesting that asm/hardware.h and asm/arch/irqs.h should be moved into the asm/arch/entry-macro.S include. So move the includes to these two files as required. Add missing includes (asm/hardware.h, asm/io.h) to asm/arch/system.h includes which use those facilities, and remove asm/io.h from kernel/process.c. Remove other unnecessary includes from arch/arm/kernel, arch/arm/mm and arch/arm/mach-footbridge. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Re-fix footbridgeRussell King2005-11-131-1/+1
| | | | | | That's __phys_to_pfn, not __phy_to_pfn. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Fix Footbridge-based machinesRussell King2005-11-121-12/+12
| | | | | | | Unfortunately, all these machines got broken when the PFN memory setup changes happened. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 2998/1: Replace map_desc.physical with map_desc.pfn: FootbridgeDeepak Saxena2005-10-281-9/+48
| | | | | | | | | 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>
* [SERIAL] Use an enum for serial8250 platform device IDsRussell King2005-09-081-1/+1
| | | | | | | | Rather than hard-coding the platform device IDs, enumerate them. We don't particularly care about the actual ID we get, just as long as they're unique. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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