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2008-10-09Merge branch 'at91' into develRussell King
2008-10-09Merge branch 'ptebits' into develRussell King
Conflicts: arch/arm/Kconfig
2008-10-09Merge branches 'machtypes', 'core', 'ep93xx', 'ks8695', 'netdev' and ↵Russell King
'sa1100' into devel
2008-10-09[ARM] 5295/1: make ZONE_DMA optionalNicolas Pitre
Most ARM machines don't need a special "DMA" memory zone, and when configured out, the kernel becomes a bit smaller: | text data bss dec hex filename |3826182 102384 111700 4040266 3da64a vmlinux |3823593 101616 111700 4036909 3d992d vmlinux.nodmazone This is because the system now has only one zone total which effect is to optimize away many conditionals in page allocation paths. So let's configure this zone only on machines that need split zones. Signed-off-by: Nicolas Pitre <nico@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-09[ARM] 5297/1: [KS8695] Fix two compile-time warningsAndrew Victor
Fix two warnings when compiling for the KS8695 processor. arch/arm/include/asm/dma-mapping.h: In function 'dma_to_virt': arch/arm/include/asm/dma-mapping.h:40: warning: return makes pointer from integer without a cast Section mismatch in reference from the function pcibios_fixup_bus() to the (unknown reference) .devinit.text:(unknown) The function pcibios_fixup_bus() references the (unknown reference) __devinit (unknown). This is often because pcibios_fixup_bus lacks a __devinit annotation or the annotation of (unknown) is wrong. Signed-off-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-09[ARM] 5296/1: [KS8695] Replace macro's with trailing underscores.Andrew Victor
Replace Macro names that have trailing underscores. Also use the IOPD() macro instead of a hard-coded bit-shift (for better readability). Signed-off-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-07[ARM] 5293/1: ep93xx: add defines for external chipselectsHartley Sweeten
This patch adds defines for the external chipselect physical base addresses available with the EP93xx. These are meant to be used in the platform init code. In addition, documentation about the synchronous/asynchronous boot modes for the EP93xx and a reference to errata about issues with synchronous booting has been added. Signed-off-by: <H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-04[ARM] 5273/2: ep93xx: move ethernet support into core.cHartley Sweeten
All EP93xx based systems can support Ethernet. This patch moves the platform_device setup from the various board support files into the core support file. The Ethernet driver data still remains in the individual platform setup files to allow specific platform configuration. This also adds Ethernet support to the edb9302, edb9312, and edb9315 platforms. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-03[ARM] 5229/3: Replace some ARMv7 opcodes with the instruction nameCatalin Marinas
These instructions were placed in the code directly as opcodes because early compilers didn't support them. Toolchains supporting ARMv7 understand these instructions and the patch puts the mnemonics back. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-03[ARM] 5276/1: ep93xx: allow selecting UART for early kernel messagesHartley Sweeten
Currently on the EP93xx platform early kernel messages go to UART1. Since this UART is the only one that has modem control signals it might be used for another purpose and it is undesirable for those messages to appear. This patch allows one of the other UARTs to be selected in the kernel configuration. It is assumed that the bootloader has configured and initialized the UART since this was the previous assumption. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-02[ARM] 5274/1: simplify request_standard_resources()Nicolas Pitre
There is no point converting memory bank addresses from physical to virtual just to convert them back to physical addresses. Furthermore this isn't "right" for highmem even if in this case the end result is the correct one. Signed-off-by: Nicolas Pitre <nico@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-01[ARM] 5270/1: Fix Formatting in mach-sa1100/ machine filesKristoffer Ericson
This patch fixes formatting issues in mach-sa1100/ machine files. More specificly badge4.c,generic.c and pleb.c. Signed-off-by: Kristoffer Ericson <Kristoffer.Ericson@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-01[ARM] 5256/1: Update jornada default configKristoffer Ericson
This patch updates the jornada default config (which was made for 2.6.12). Plenty of development has happend since then, most importantly the SSP driver and kbd/touchscr. This config has been tested to compile and bootup properly. Signed-off-by: Kristoffer Ericson <Kristoffer.Ericson@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-01[ARM] mm: allow LH7A40x to use sparsememRussell King
Enable Sparsemem support for LH7A40x SoCs, while still allowing the existing discontig support for the time being. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-01[ARM] mm: deprecate discontigmem on ARMRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-01[ARM] mm: switch SA1100 to use sparsememRussell King
Tested on Assabet, and Assabet with Neponset's SDRAM at 3328M phys. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-01[ARM] mm: enable sparsemem on clps7500 and RiscPCRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-01[ARM] mm: finish ARM sparsemem supportRussell King
... including some comments about the ordering required to bring sparsemem up. You have to repeatedly guess, test, reguess, try again and again to work out what the right ordering is. Many hours later... Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-01[ARM] mm: provide helpers for accessing membanksRussell King
Provide helpers for getting physical addresses or pfns from the meminfo array, and use them. Move for_each_nodebank() to asm/setup.h alongside the meminfo structure definition. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-01[ARM] Improve non-executable supportRussell King
Add support for detecting non-executable stack binaries, and adjust permissions to prevent execution from data and stack areas. Also, ensure that READ_IMPLIES_EXEC is enabled for older CPUs where that is true, and for any executable-stack binary. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-01[ARM] Don't include asm/elf.h in asm codeRussell King
asm code really wants asm/hwcap.h, so include that instead. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-01[ARM] Remove MT_NONSHARED_DEVICE aliasRussell King
Use MT_DEVICE_NONSHARED instead. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-01[ARM] Remove MT_DEVICE_IXP2000 and associated definitionsRussell King
As of the previous commit, MT_DEVICE_IXP2000 encodes to the same PTE bit encoding as MT_DEVICE, so it's now redundant. Convert MT_DEVICE_IXP2000 to use MT_DEVICE instead, and remove its aliases. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-01[ARM] Update Xscale and Xscale3 PTE mappingsRussell King
Use 'shared device' mappings for devices, and use the standard bit combinations for Xscale3. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-01[ARM] remove 'prot_pte_ext' from memory type tableRussell King
This member is now redundant; the memory type is encoded in the Linux PTE bits. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-01[ARM] Convert ARMv7 to use TEX remappingRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-01[ARM] Convert ARMv6 and ARMv7 to use new memory typesRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-01[ARM] Convert Xscale and Xscale3 to use new memory typesRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-01[ARM] Introduce new PTE memory type bitsRussell King
Provide L_PTE_MT_xxx definitions to describe the memory types that we use in Linux/ARM. These definitions are carefully picked such that: 1. their LSBs match what is required for pre-ARMv6 CPUs. 2. they all have a unique encoding, including after modification by build_mem_type_table() (the result being that some have more than one combination.) Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-01[ARM] Re-jig Linux PTE bits to allow room for 4 memory type bitsRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-01[ARM] Convert set_pte_ext implementions to macrosRussell King
There are actually only four separate implementations of set_pte_ext. Use assembler macros to insert code for these into the proc-*.S files. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-30[ARM] mm: move vmalloc= parsing to arch/arm/mm/mmu.cRussell King
There's no point scattering this around the tree, the parsing of the parameter might as well live beside the code which uses it. That also means we can make vmalloc_reserve a static variable. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-30[ARM] mm: move validation of membanks to one placeRussell King
The newly introduced sanity_check_meminfo() function should be used to collect all validation of the meminfo array, which we have in bootmem_init(). Move it there. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-30[ARM] 5272/1: remove conditional compilation in show_pte()Nicolas Pitre
The PTRS_PER_PMD != 1 condition can be evaluated with C code and optimized at compile time. Signed-off-by: Nicolas Pitre <nico@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-30[ARM] 5271/1: get rid of pages_to_mb()Nicolas Pitre
There is no use of this in the whole tree. Signed-off-by: Nicolas Pitre <nico@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-30[ARM] 5269/1: ARMv7: Use -march=armv7-a as compiler flagCatalin Marinas
The current -march=armv7a is not supported by mainline gcc. Cc: Paul Brook <paul@codesourcery.com> Cc: Wei Zhong <weizhong@broadcom.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-30[ARM] dma: fix some comments in dma-mapping.hRussell King
... to prevent people being mislead. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-30[ARM] dma: don't touch cache on dma_*_for_cpu()Russell King
As per the dma_unmap_* calls, we don't touch the cache when a DMA buffer transitions from device to CPU ownership. Presently, no problems have been identified with speculative cache prefetching which in itself is a new feature in later architectures. We may have to revisit the DMA API later for these architectures anyway. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-29[ARM] 5267/1: [AT91] Name conflict in mach-at91/leds.cAndrew Victor
The name of the platform device 'at91_pwm_leds' conflicts with the function at91_pwm_leds(). So rename the device 'at91_pwm_leds_device' to be more specific. Similarly rename 'at91_gpio_leds_device' for consistency. Signed-off-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-29[ARM] 5261/1: [AT91] Support for LEDs on Conitec ARM&EVA boardAndrew Victor
Add support for the LEDs on the Conitec ARM&EVA board. Signed-off-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-29[ARM] dma: add validation of DMA paramsRussell King
Validate the direction argument like x86 does. In addition, validate the dma_unmap_* parameters against those passed to dma_map_* when using the DMA bounce code. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-29[ARM] dma: coding style cleanupsRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-29[ARM] dma: fix dmabounce dma_sync_xxx() implementationsRussell King
The dmabounce dma_sync_xxx() implementation have been broken for quite some time; they all copy data between the DMA buffer and the CPU visible buffer no irrespective of the change of ownership. (IOW, a DMA_FROM_DEVICE mapping copies data from the DMA buffer to the CPU buffer during a call to dma_sync_single_for_device().) Fix it by getting rid of sync_single(), moving the contents into the recently created dmabounce_sync_for_xxx() functions and adjusting appropriately. This also makes it possible to properly support the DMA range sync functions. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-29[ARM] dma: use new dmabounce_sync_for_xxx() for dma_sync_single_xxx()Russell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-29[ARM] dma: Reduce to one dma_sync_sg_* implementationRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-25[ARM] dma: Reduce to one dma_map_sg()/dma_unmap_sg() implementationRussell King
No point having two of these; dma_map_page() can do all the work for us. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-25[ARM] dma: provide a better dma_map_page() implementationRussell King
We can translate a struct page directly to a DMA address using page_to_dma(). No need to use page_address() followed by virt_to_dma(). Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-25[ARM] Update dma_map_sg()/dma_unmap_sg() APIRussell King
Update the ARM DMA scatter gather APIs for the scatterlist changes. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-25[ARM] dma: rename consistent.c to dma-mapping.cRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-25[ARM] Print details relevant to how we handle the cacheRussell King
This replaces the original cache type decoding printks. We now indicate how we're treating the cache which we found, rather than what we found. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>