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2009-06-16usb/ps3: Add missing annotationsGeert Uytterhoeven
probe functions should be __devinit initialization functions should be __init Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-16powerpc: Add memory clobber to mtspr()Benjamin Herrenschmidt
Without this clobber, mtspr can be re-ordered by gcc vs. surrounding memory accesses. While this might be ok for some cases, it's not in others and I'm not confident that all callers get it right (In fact I'm sure some of them don't). So for now, let's make mtspr() itself contain a memory clobber until we can audit and fix everything, at which point we can remove it if we think it's worth doing so. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-16powerpc: Fix invalid construct in our CPU selection KconfigBenjamin Herrenschmidt
commit 5b7c3c918c9c26c50d220b2b50359208cb5a1dbe introduced an invalid construct in our CPU selection. This caused warnings, though it still appeared to do the right thing. This fixes it properly by having separate formal definitions of PPC_BOOK3S_32 and PPC_BOOK3S_64 and one statement defining PPC_BOOK3S based on the two above. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-16ps3rom: Use ps3_system_bus_[gs]et_drvdata() instead of direct accessGeert Uytterhoeven
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Acked-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-16powerpc: Add configurable -Werror for arch/powerpcMichael Ellerman
Add the option to build the code under arch/powerpc with -Werror. The intention is to make it harder for people to inadvertantly introduce warnings in the arch/powerpc code. It needs to be configurable so that if a warning is introduced, people can easily work around it while it's being fixed. The option is a negative, ie. don't enable -Werror, so that it will be turned on for allyes and allmodconfig builds. The default is n, in the hope that developers will build with -Werror, that will probably lead to some build breaks, I am prepared to be flamed. It's not enabled for math-emu, which is a steaming pile of warnings. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-16of_serial: Add UPF_FIXED_TYPE flagDave Mitchell
This patch adds the UPF_FIXED_TYPE flag which will bypass the 8250's autoconfig probe for uart type. The uart type identified by the of_serial's parse of the flat device tree will be utilized as defined. Signed-off-by: Dave Mitchell <dmitchell@amcc.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-16drivers/hvc: Add missing __devexit_p()Mike Frysinger
The remove function uses __devexit, so the .remove assignment needs __devexit_p() to fix a build error with hotplug disabled. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-16net/ps3: gelic - Add missing annotationsGeert Uytterhoeven
probe functions should be __devinit Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-16powerpc: Introduce macro spin_event_timeout()Timur Tabi
The macro spin_event_timeout() takes a condition and timeout value (in microseconds) as parameters. It spins until either the condition is true or the timeout expires. It returns the result of the condition when the loop was terminated. This primary purpose of this macro is to poll on a hardware register until a status bit changes. The timeout ensures that the loop still terminates if the bit doesn't change as expected. This macro makes it easier for driver developers to perform this kind of operation properly. Signed-off-by: Timur Tabi <timur@freescale.com> Acked-by: Geoff Thorpe <Geoff.Thorpe@freescale.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-16powerpc/warp: Fix ISA_DMA_THRESHOLD defaultSean MacLennan
If no device is passed to __dma_alloc_coherent, it defaults to using ISA_DMA_THRESHOLD for the mask. This patch provides a reasonable default rather than 0. Signed-off-by: Sean MacLennan <smaclennan@pikatech.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15powerpc/bootwrapper: Custom build options for XPedite52xx targetsNate Case
Some XPedite52xx boards have a legacy boot loader requiring some special care in the boot wrapper. The use of cuboot-85xx is needed to fix up embedded device trees, and a custom link address is specified to accommodate the boot loader and larger kernel image sizes used on X-ES MPC85xx platforms. Signed-off-by: Nate Case <ncase@xes-inc.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-06-15powerpc/85xx: Add defconfig for X-ES MPC85xx boardsNate Case
Signed-off-by: Nate Case <ncase@xes-inc.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-06-15powerpc/85xx: Add dts files for X-ES MPC85xx boardsNate Case
Add device tree source files for various MPC85xx boards from Extreme Engineering Solutions. Supported boards include XPedite5370, XPedite5200, XPedite5301, XPedite5330, and XCalibur1501. Signed-off-by: Nate Case <ncase@xes-inc.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-06-15powerpc/85xx: Add platform support for X-ES MPC85xx boardsNate Case
Add support for X-ES single-board computers based on the Freescale MPC85xx processors. Signed-off-by: Nate Case <ncase@xes-inc.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-06-1583xx: add support for the kmeter1 board.Heiko Schocher
The following series implements basic board support for the kmeter1 board from keymile, based on a MPC8360. This series provides the following functionality: - The board can boot with a serial console on UART1 - Ethernet: UCC1 in RGMII mode UCC2 in RGMII mode UCC4 in RMII mode UCC5 in RMII mode UCC6 in RMII mode UCC7 in RMII mode UCC8 in RMII mode following patch is necessary for working UCC in RMII mode: http://lists.ozlabs.org/pipermail/linuxppc-dev/2009-April/070804.html - Flash accessed via MTD layer On this hardware there is an Intel P30 flash, following patch series is necessary for working with this hardware: http://lists.ozlabs.org/pipermail/linuxppc-dev/2009-April/070624.html - I2C using I2C Bus 1 from the MPC8360 cpu Signed-off-by: Heiko Schocher <hs@denx.de> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-06-15powerpc/85xx: Add nor flash partitions for mpc8569mdsKevin Hao
Add 4 partitions in nor flash. Also fix nor flash bank width bug. The flash is capable of x8/x16 width but is configured for x8. Signed-off-by: Kevin Hao <kexin.hao@windriver.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-06-15powerpc/fsl: Increase the number of possible localbus banksmware@internode.on.net
Currently the fsl,*lbc devices support 8 banks (ie OR and BR registers). This is adequate for most pq2 and pq3 processors, but not the MPC8280 which has 12 banks. Signed-Off-By: Mark Ware <mware@elphinstone.net> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-06-15rio: warn_unused_result warnings fixYang Li
Adding failure path for the following two cases. warning: ignoring return value of 'device_add', declared with attribute warn_unused_result warning: ignoring return value of 'sysfs_create_bin_file', declared with attribute warn_unused_result Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-06-15powerpc/85xx: cuboot - Fix up ethernet3 MAC address on MPC85xxNate Case
Some MPC85xx platforms do support 4 ethernet ports, so make sure the boot wrapper fixes up all of them in the fdt. Since MAC addresses are at the end of the bd_t structure there is no harm in expanding to support 4 MAC address on older 85xx systems that might not have that many. Signed-off-by: Nate Case <ncase@xes-inc.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-06-15serial: Make ucc_uart work in HW UART modeDave Liu
In HW UART mode the TxBD[READY] is not cleared by H/W (RISC engine) when the user send characters to Tx buffer of QE UART. So, these characters stay on the QE forever, never go to UART line. Signed-off-by: Dave Liu <daveliu@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-06-15powerpc: Enable additional BAT registers in setup_745x_specifics()Gerhard Pircher
Currently the kernel expects the additional four IBAT and DBAT registers to be available, but doesn't enable these registers on 745x CPUs, which have them disabled after reset. Thus set the HIGH_BAT_EN bit in HID0 register, if the corresponding MMU feature is defined. Signed-off-by: Gerhard Pircher <gerhard_pircher@gmx.net> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-06-15powerpc/mpc83xx: Fix usb mux setup for mpc834xPeter Korsgaard
usb0 and usb1 mux settings in the sicrl register were swapped (twice!) in mpc834x_usb_cfg(), leading to various strange issues with fsl-ehci and full speed devices. The USB port config on mpc834x is done using 2 muxes: Port 0 is always used for MPH port 0, and port 1 can either be used for MPH port 1 or DR (unless DR uses UTMI phy or OTG, then it uses both ports) - See 8349 RM figure 1-4.. mpc8349_usb_cfg() had this inverted for the DR, and it also had the bit positions of the usb0 / usb1 mux settings swapped. It would basically work if you specified port1 instead of port0 for the MPH controller (and happened to use ULPI phys), which is what all the 834x dts have done, even though that configuration is physically invalid. Instead fix mpc8349_usb_cfg() and adjust the dts files to match reality. Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-06-15powerpc/83xx: Add MSI interrupts to DTS of MPC8315E-RDBleon.woestenberg@gmail.com
The PCIe MSI interrupts are missing from the device tree source, and thus were not enabled. This patch adds them. Tested to work on MPC8315E-RDB with custom FPGA PCIe device. Signed-off-by: Leon Woestenberg <leon@sidebranch.com> Tested-by: Leon Woestenberg <leon@sidebranch.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-06-15powerpc/86xx: Add I2C device mappings in DTS for SBC610Martyn Welch
Mappings for temperature sensors (adt7461 and lm92) are missing from the SBC610's DTS file. Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-06-15powerpc/85xx: Add UCC6 and UCC8 nodes in SGMII mode for MPC8569MDSHaiying Wang
Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-06-15powerpc/83xx: Update sdhci nodes per new bindingsAnton Vorontsov
As of commit 404614728f857d0ac63d29c3a29d0cf392a15598 ("Update FSL esdhc binding"), we use "fsl,esdhc" compatible entry as a base match. U-Boot will use the same compatible to fixup esdhc nodes. This patch updates 83xx dts files so that they conform to the new bindings. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-06-15powerpc/fsl-booke: Enable L1 cache on e500v1/e500v2/e500mc CPUsNate Case
Some boot loaders may not enable L1 instruction/data cache. Check if data and instruction caches are enabled, and enable them if needed. Signed-off-by: Nate Case <ncase@xes-inc.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-06-15powerpc/mpc8272ads: fix device tree for 8 MB flash sizeWolfgang Denk
The current device tree for the MPC8272ADS assumes a mapping of 32 MB of NOR flash at 0xFE00.0000, while there are actually only 8 MB on the boards, mapped at 0xFF80.0000. When booting an uImage with such a device tree, the kernel crashes because 0xFE00.0000 is not mapped. Also introduce aliases for serial[01] and ethernet[01]. Signed-off-by: Wolfgang Denk <wd@denx.de> Cc: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-06-15powerpc/85xx: Add SWIOTLB support to FSL boardsKumar Gala
Add the platform-specific code for enabling SWIOTLB if needed on P2020DS, MPC85xx DS, and MPC85xx MDS boards as they are capable of having >4G of memory. We determine if we need to enable swiotlb based on how much memory is in the board and if it exceeds 4G or what we can map via PCI inbound windows. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-06-15powerpc: Add 86xx support for SWIOTLBBecky Bruce
This is the final bit of code to allow enabling swiotlb on mpc86xx. The platform-specific code is very small and consists of enabling SWIOTLB in the config file, registering the swiotlb_setup_bus_notifier initcall, and setting pci_dma_ops to point to swiotlb_pci_dma_ops if we have more memory than can be mapped by the inbound PCI windows. Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-06-15ps3flash: Always read chunks of 256 KiB, and cache themGeert Uytterhoeven
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15ps3flash: Cache the last accessed FLASH chunkGeert Uytterhoeven
Add support for caching, to reduce FLASH wear when writing using small blocksizes. As we also don't care anymore about heads and tails in case of partial writes, this greatly simplifies the code for handling writes. Note: We don't bother caching reads smaller than the FLASH chunk size (256 KiB). Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15ps3: Replace direct file operations by callbackGeert Uytterhoeven
Currently the FLASH database is updated by the kernel using file operations, meant for userspace only. While this works for us because copy_{from,to}_user() on powerpc can handle kernel pointers, this is unportable and a bad example. Replace the file operations by callbacks, registered by the ps3flash driver. Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Cc: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15ps3: Switch ps3_os_area_[gs]et_rtc_diff to EXPORT_SYMBOL_GPL()Geert Uytterhoeven
They were never intended to be exported using EXPORT_SYMBOL() anyway Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Cc: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15ps3: Correct debug message in dma_ioc0_map_pages()Geert Uytterhoeven
It reports the failure of a call to lv1_put_iopte(), not lv1_map_device_dma_region(). Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Cc: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15drivers/ps3: Add missing annotationsGeert Uytterhoeven
probe functions should be __devinit initialization functions should be __init Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Cc: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15ps3fb: Use ps3_system_bus_[gs]et_drvdata() instead of direct accessGeert Uytterhoeven
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Cc: linux-fbdev-devel@lists.sourceforge.net Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15ps3flash: Use ps3_system_bus_[gs]et_drvdata() instead of direct accessGeert Uytterhoeven
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15ps3: shorten ps3_system_bus_[gs]et_driver_data to ps3_system_bus_[gs]et_drvdataGeert Uytterhoeven
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Cc: Geoff Levand <geoffrey.levand@am.sony.com> Cc: Jim Paris <jim@jtan.com> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15ps3: Use dev_[gs]et_drvdata() instead of direct access for system bus devicesGeert Uytterhoeven
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Cc: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15block/ps3: remove driver_data direct access of struct deviceRoel Kluin
In the near future, the driver core is going to not allow direct access to the driver_data pointer in struct device. Instead, the functions dev_get_drvdata() and dev_set_drvdata() should be used. These functions have been around since the beginning, so are backwards compatible with all older kernel versions. [Geert: Use ps3_system_bus_[gs]et_driver_data() for ps3_system_bus_device] Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Cc: Jim Paris <jim@jtan.com> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15ps3vram: Make ps3vram_priv.reports a void *Geert Uytterhoeven
So we can kill a cast. Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Cc: Jim Paris <jim@jtan.com> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15ps3vram: Remove no longer used ps3vram_priv.ddr_baseGeert Uytterhoeven
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Cc: Jim Paris <jim@jtan.com> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15ps3vram: Replace mutex by spinlock + bio_listGeert Uytterhoeven
Remove the mutex serializing access to the cache. Instead, queue up new requests on a bio_list if the driver is busy. This improves sequential write performance by ca. 2%. Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Cc: Jim Paris <jim@jtan.com> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15block: Add bio_list_peek()Geert Uytterhoeven
Introduce bio_list_peek(), to obtain a pointer to the first bio on the bio_list without actually removing it from the list. This is needed when you want to serialize based on the list being empty or not. Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Acked-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15powerpc: Use generic atomic64_t implementation on 32-bit processorsPaul Mackerras
This makes 32-bit powerpc use the generic atomic64_t implementation. Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15lib: Provide generic atomic64_t implementationPaul Mackerras
Many processor architectures have no 64-bit atomic instructions, but we need atomic64_t in order to support the perf_counter subsystem. This adds an implementation of 64-bit atomic operations using hashed spinlocks to provide atomicity. For each atomic operation, the address of the atomic64_t variable is hashed to an index into an array of 16 spinlocks. That spinlock is taken (with interrupts disabled) around the operation, which can then be coded non-atomically within the lock. On UP, all the spinlock manipulation goes away and we simply disable interrupts around each operation. In fact gcc eliminates the whole atomic64_lock variable as well. Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15powerpc: Add compiler memory barrier to mtmsr macroPaul Mackerras
On 32-bit non-Book E, local_irq_restore() turns into just mtmsr(), which doesn't currently have a compiler memory barrier. This means that accesses to memory inside a local_irq_save/restore section, or a spin_lock_irqsave/spin_unlock_irqrestore section on UP, can be reordered by the compiler to occur outside that section. To fix this, this adds a compiler memory barrier to mtmsr for both 32-bit and 64-bit. Having a compiler memory barrier in mtmsr makes sense because it will almost always be changing something about the context in which memory accesses are done, so in general we don't want memory accesses getting moved from one side of an mtmsr to the other. With the barrier in mtmsr(), some of the explicit barriers in hw_irq.h are now redundant, so this removes them. Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15powerpc/iseries: Mark signal_vsp_instruction() as maybe unusedMichael Ellerman
signal_vsp_instruction() is currently only used if CONFIG_PROC_FS is enabled. However logically it has nothing to do with PROC_FS, so rather than making it depend on that mark it as maybe unused. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15powerpc/iseries: Fix unused function warning in iSeries DT codeMichael Ellerman
If CONFIG_BLK_DEV_INITRD is unset dt_prop_u64() is unused, which causes a warning. We don't really want to tie the definition to BLK_DEV_INITRD, so mark it as maybe unused. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>