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* Merge branch 'for-3.7/board-removal' into for-3.7/cleanup2Stephen Warren2012-09-14
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| * ARM: tegra: remove board (but not DT) support for HarmonyStephen Warren2012-09-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Harmony can be booted using device tree with equal functionality as when booted using a board file. Remove as much of the board file as is possible, since it's no longer needed. Two special-cases are still left in board-dt-tegra20.c, since the Tegra PCIe driver doesn't support device tree yet, and the Harmony .dts file doesn't yet describe regulators which are needed for PCIe. This logic is now enabled unconditionally rather than via CONFIG_MACH_HARMONY. While this is more code than other boards, it's still unlikely to be much of a problem, and both regulators and PCIe should be supported via device tree in the near future, allowing the remaining code to be removed. Signed-off-by: Stephen Warren <swarren@nvidia.com>
| * ARM: tegra: remove board (but not DT) support for Paz00Stephen Warren2012-09-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Paz00 (Toshiba AC100) can be booted using device tree with equal functionality as when booted using a board file. Remove as much of the board file as is possible, since it's no longer needed. One special-case is still left in board-dt-tegra20.c, since there is no way to create a WiFi rfkill device from device tree yet. This logic is now enabled unconditionally rather than via CONFIG_MACH_PAZ00. The extra cases where it's enabled (.configs which did not enable Paz00 support) shouldn't impact much since the amount of code is tiny. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-By: Marc Dietrich <marvin24@gmx.de>
| * ARM: tegra: remove board (but not DT) support for TrimSliceStephen Warren2012-09-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | TrimSlice can be booted using device tree with equal functionality as when booted using a board file. Remove the board file since it's no longer needed. One special-case is still left in board-dt-tegra20.c, since the Tegra PCIe driver doesn't support device tree yet. This logic is now enabled by CONFIG_TEGRA_PCI rather than via CONFIG_MACH_TRIMSLICE. The extra cases where it's enabled (.configs which did not enable TrimSlice support) shouldn't impact much since the amount of code is tiny. Signed-off-by: Stephen Warren <swarren@nvidia.com>
* | ARM: tegra: remove duplicate select USE_OFStephen Warren2012-09-06
|/ | | | | | | ARCH_TEGRA (arch/arm/Kconfig) now selects USE_OF, so there's not need for ARCH_TEGRA_3x_SOC to do so too. Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: tegra: remove Seaboard board filesStephen Warren2012-06-20
| | | | | | | | | | | | | | | The Seaboard device tree supports all the features that the Seaboard board files support. Hence, there's no need to keep the board files around any more; all users should convert to device tree. MACH_KAEN and MACH_WARIO are also removed. While tegra-seaboard.dts doesn't support those explicitly, it would be trivial to create device trees for those boards if anyone cares. The Seaboard device tree is now compiled if Tegra2 support is enabled, rather than when Seaboard support is enabled. Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: tegra: remove CONFIG_MACH_TEGRA_DTStephen Warren2012-06-20
| | | | | | | | | | | * Make ARCH_TEGRA select USE_OF; DT is the way forward. * Build board-dt-tegra*.c when the relevant Tegra SoC support is enabled, rather than requiring a specific config option for this. * The board-specific config options already build board-*-pinmux.o, and when booting from device tree these files are no longer needed, so we can remove some Makefile commands related to those files. Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: tegra: make .dts compilation depend on Tegra2 supportStephen Warren2012-06-20
| | | | | | | | Update Makefile.boot to compile *.dts when the appropriate Tegra SoC support is enabled, rather than requiring Kconfig to list each board individually. Remove CONFIG_MACH_VENTANA now that it has no use. Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ASoC: tegra: simplify Kconfig dependenciesStephen Warren2012-06-11
| | | | | | | | | | The Tegra ASoC machine drivers only depend on Tegra architecture support to compile, not specific board support. Remove Kconfig dependencies on any particular board. This is required since Kconfig options for boards are going away given the migration to device tree. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* Merge branch 'for-3.5/ahb' of ↵Arnd Bergmann2012-05-15
|\ | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/drivers * tegra/ahb: ARM: tegra: Add SMMU enabler in AHB ARM: tegra: Add Tegra AHB driver Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * ARM: tegra: Add Tegra AHB driverHiroshi DOYU2012-05-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Tegra AHB Bus conforms to the AMBA Specification (Rev 2.0) Advanced High-performance Bus (AHB) architecture. The AHB Arbiter controls AHB bus master arbitration. This effectively forms a second level of arbitration for access to the memory controller through the AHB Slave Memory device. The AHB pre-fetch logic can be configured to enhance performance for devices doing sequential access. Each AHB master is assigned to either the high or low priority bin. Both Tegra20/30 have this AHB bus. Some of configuration params could be passed from DT too if needed. Signed-off-by: Hiroshi DOYU <hdoyu@nvidia.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Felipe Balbi <balbi@ti.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* | ARM: tegra: uncompress.h: Implement TEGRA_DEBUG_UART_AUTO_ODMDATAStephen Warren2012-04-10
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Tegra has 5 UARTS which could be used for low-level debug output. Commit fe26398 "ARM: tegra: uncompress.h: Choose a UART at runtime" implemented one method for the kernel to automatically determine which of these to use at run-time, so that the same DEBUG_LL-enabled kernel image could be used across multiple Tegra boards. The required bootloader-side setup for that option is implemented in NVIDIA's various downstream U-Boot branches, but the U-Boot maintainers have refused to accept it upstream. This change implements an alternative automatic UART selection option using ODMDATA. This is a 32-bit value programmed into Tegra's boot memory which provides a few pieces of basic board-specific information, including a field that indicates the console UART. Setting up this value is part of the standard Tegra boot architecture, and so requires no Tegra-specific hacks in the bootloader's UART driver. Note that in theory, the format of ODMDATA is board-specific. However, in practice all boards use the same location/size/values for the UART field. ODMDATA[19:18] (which drive the type of debug console) is more problematic, since some boards use value 2 for UART and others use 3. This patch just accepts either value; if this doesn't work well for a given board, I'd suggest simply not enabling this debug option when building for that board. Note that the kernel assumes the bootloader has already set up any required pinmux settings for the UART; there is no way the kernel can do this for itself prior to knowing which board it's running on. In practice, people using this feature are highly likely to be using bootloaders that have indeed configured the pinmux. This assumption existed prior to this patch. Signed-off-by: Stephen Warren <swarren@nvidia.com>
* Merge tag 'timer' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds2012-03-27
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull "ARM: timer cleanup work" from Arnd Bergmann: "These are split out from the generic soc and driver updates because there was a lot of conflicting work by multiple people. Marc Zyngier worked on simplifying the "localtimer" interfaces, and some of the platforms are touching the same code as they move to device tree based booting. Signed-off-by: Arnd Bergmann <arnd@arndb.de>" * tag 'timer' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (61 commits) ARM: tegra: select USB_ULPI if USB is selected arm/tegra: pcie: fix return value of function ARM: ux500: fix compilation after local timer rework ARM: shmobile: remove additional __io() macro use ARM: local timers: make the runtime registration interface mandatory ARM: local timers: convert MSM to runtime registration interface ARM: local timers: convert exynos to runtime registration interface ARM: smp_twd: remove old local timer interface ARM: imx6q: convert to twd_local_timer_register() interface ARM: highbank: convert to twd_local_timer_register() interface ARM: ux500: convert to twd_local_timer_register() interface ARM: shmobile: convert to twd_local_timer_register() interface ARM: tegra: convert to twd_local_timer_register() interface ARM: plat-versatile: convert to twd_local_timer_register() interface ARM: OMAP4: convert to twd_local_timer_register() interface ARM: smp_twd: add device tree support ARM: smp_twd: add runtime registration support ARM: local timers: introduce a new registration interface ARM: smp_twd: make local_timer_stop a symbol instead of a #define ARM: mach-shmobile: default to no earlytimer ...
| * ARM: tegra: select USB_ULPI if USB is selectedArnd Bergmann2012-03-18
| | | | | | | | | | | | | | | | | | Automatically select USB_ULPI if USB is enabled on Tegra. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Alan Ott <alan@signal11.us> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Olof Johansson <olof@lixom.net>
* | Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds2012-03-27
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull "ARM: global cleanups" from Arnd Bergmann: "Quite a bit of code gets removed, and some stuff moved around, mostly the old samsung s3c24xx stuff. There should be no functional changes in this series otherwise. Some cleanups have dependencies on other arm-soc branches and will be sent in the second round. Signed-off-by: Arnd Bergmann <arnd@arndb.de>" Fixed up trivial conflicts mainly due to #include's being changes on both sides. * tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (121 commits) ep93xx: Remove unnecessary includes of ep93xx-regs.h ep93xx: Move EP93XX_SYSCON defines to SoC private header ep93xx: Move crunch code to mach-ep93xx directory ep93xx: Make syscon access functions private to SoC ep93xx: Configure GPIO ports in core code ep93xx: Move peripheral defines to local SoC header ep93xx: Convert the watchdog driver into a platform device. ep93xx: Use ioremap for backlight driver ep93xx: Move GPIO defines to gpio-ep93xx.h ep93xx: Don't use system controller defines in audio drivers ep93xx: Move PHYS_BASE defines to local SoC header file ARM: EXYNOS: Add clock register addresses for EXYNOS4X12 bus devfreq driver ARM: EXYNOS: add clock registers for exynos4x12-cpufreq PM / devfreq: update the name of EXYNOS clock registers that were omitted PM / devfreq: update the name of EXYNOS clock register ARM: EXYNOS: change the prefix S5P_ to EXYNOS4_ for clock ARM: EXYNOS: use static declaration on regarding clock ARM: EXYNOS: replace clock.c for other new EXYNOS SoCs ARM: OMAP2+: Fix build error after merge ARM: S3C24XX: remove call to s3c24xx_setup_clocks ...
| * ARM: tegra: select CPU_FREQ_TABLEArnd Bergmann2012-03-04
| | | | | | | | | | | | | | | | | | The tegra cpufreq implementation relies on the cpu_freq_table code, so make sure that this is always there when needed. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Alan Ott <alan@signal11.us> Signed-off-by: Olof Johansson <olof@lixom.net>
| * ARM: tegra: select required CPU and L2 errata optionsStephen Warren2012-02-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The ARM IP revisions in Tegra are: Tegra20: CPU r1p1, PL310 r2p0 Tegra30: CPU A01=r2p7/>=A02=r2p9, NEON r2p3-50, PL310 r3p1-50 Based on work by Olof Johansson, although the actual list of errata is somewhat different here, since I added a bunch more and removed one PL310 erratum that doesn't seem applicable. Signed-off-by: Stephen Warren <swarren@nvidia.com> Cc: stable@vger.kernel.org Signed-off-by: Olof Johansson <olof@lixom.net>
* | ARM: tegra: Select PINCTRL Kconfig variablesStephen Warren2012-03-06
|/ | | | | | | | | | This causes the Tegra pinctrl driver to be built whenever core Tegra support is enabled. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* arm/tegra: Make MACH_TEGRA_DT depend on ARCH_TEGRA_2x_SOCStephen Warren2011-12-19
| | | | | | | | | Now that Tegra20 and Tegra30 device tree board files are separate, MACH_TEGRA_DT (which enables the Tegra20 device tree board file) should depend on Tegra20 support being enabled. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Olof Johansson <olof@lixom.net>
* arm/tegra: implement support for tegra30Peter De Schrijver2011-12-17
| | | | | | | | | | | | | Add support for tegra30 SoC. This includes a device tree compatible type for this SoC ("nvidia,tegra30") and adds L2 cache initialization for this new SoC. The clock framework is still missing, which prevents most drivers from working. The basic IRQs are the same, so remove the dependency on CONFIG_ARCH_TEGRA_2x_SOC. Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> Acked-by: Stephen Warren <swarren@nvidia.com> Acked-by: Colin Cross <ccross@android.com> Signed-off-by: Olof Johansson <olof@lixom.net>
* arm/tegra: rename board-dt.c to board-dt-tegra20.cPeter De Schrijver2011-12-17
| | | | | | | | | | | Tegra20 based boards will be handled by the current board-dt.c file. Tegra30 based boards will be handled by a new board-dt-tegra30.c file. Hence rename the existing board-dt.c to board-dt-tegra20.c to reflect its use. Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> Acked-by: Stephen Warren <swarren@nvidia.com> Acked-by: Colin Cross <ccross@android.com> Signed-off-by: Olof Johansson <olof@lixom.net>
* arm/tegra: cleanup tegra20 supportPeter De Schrijver2011-12-17
| | | | | | | | | | | | * add a dependency to ARCH_TEGRA_2x_SOC in Kconfig to all tegra20 based boards and TEGRA_PCI * make powergating dependent on ARCH_TEGRA_2x_SOC * remove dependency on ARCH_TEGRA_2x_SOC for clock.c Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> Acked-by: Stephen Warren <swarren@nvidia.com> Acked-by: Colin Cross <ccross@android.com> Signed-off-by: Olof Johansson <olof@lixom.net>
* arm/tegra: device tree support for ventana boardPeter De Schrijver2011-10-13
| | | | | | Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Olof Johansson <olof@lixom.net>
* Merge branch 'next/dt' of ↵Linus Torvalds2011-07-30
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc * 'next/dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc: (21 commits) arm/dt: tegra devicetree support arm/versatile: Add device tree support dt/irq: add irq_domain_generate_simple() helper irq: add irq_domain translation infrastructure dmaengine: imx-sdma: add device tree probe support dmaengine: imx-sdma: sdma_get_firmware does not need to copy fw_name dmaengine: imx-sdma: use platform_device_id to identify sdma version mmc: sdhci-esdhc-imx: add device tree probe support mmc: sdhci-pltfm: dt device does not pass parent to sdhci_alloc_host mmc: sdhci-esdhc-imx: get rid of the uses of cpu_is_mx() mmc: sdhci-esdhc-imx: do not reference platform data after probe mmc: sdhci-esdhc-imx: extend card_detect and write_protect support for mx5 net/fec: add device tree probe support net: ibm_newemac: convert it to use of_get_phy_mode dt/net: add helper function of_get_phy_mode net/fec: gasket needs to be enabled for some i.mx serial/imx: add device tree probe support serial/imx: get rid of the uses of cpu_is_mx1() arm/dt: Add dtb make rule arm/dt: Add skeleton dtsi file ...
| * arm/dt: tegra devicetree supportGrant Likely2011-07-28
| | | | | | | | | | | | | | | | | | | | Everything required to populate NVIDIA Tegra devices from the device tree. This patch adds a new DT_MACHINE_DESC() which matches against a tegra20 device tree. So far it only registers the on-chip devices, but it will be refined in follow on patches to configure clocks and pin IO from the device tree also. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* | ARM: tegra: only select MACH_HAS_SND_SOC_TEGRA_WM8903 if SND_SOCUwe Kleine-König2011-07-27
|/ | | | | | | | | | This fixes: warning: (MACH_HARMONY && MACH_KAEN && MACH_SEABOARD) selects MACH_HAS_SND_SOC_TEGRA_WM8903 which has unmet direct dependencies (SOUND && !M68K && SND && SND_SOC) Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Stephen Warren <swarren@nvidia.com> Acked-By: Colin Cross <ccross@android.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* ARM: Tegra: select MACH_HAS_SND_SOC_TEGRA_WM8903Stephen Warren2011-04-21
| | | | | | | | | | | | | | CONFIG_SND_SOC_TEGRA_WM8903 is useful for many Tegra boards. To avoid the ASoC tegra/Kconfig enumerating them all, instead have the Tegra machine Kconfig select MACH_HAS_SND_SOC_TEGRA_WM8903 where appropriate, and have SND_SOC_TEGRA_WM8903 depend on this. [Redid ASoC diff so it applies. -- broonie] Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* Merge branch 'for-linus' of git://android.git.kernel.org/kernel/tegraLinus Torvalds2011-03-24
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://android.git.kernel.org/kernel/tegra: ARM: tegra: harmony: initialize the TPS65862 PMIC ARM: tegra: update defconfig ARM: tegra: harmony: update PCI-e initialization sequence ARM: tegra: trimslice: enable MMC/SD slots ARM: tegra: enable new drivers in defconfig ARM: tegra: Add Toshiba AC100 support ARM: tegra: harmony: Set WM8903 gpio_base ARM: tegra: harmony: I2C-related portions of audio support ARM: tegra: harmony: register i2c devices ARM: tegra: seaboard: register i2c devices ARM: tegra: harmony: Beginnings of audio support ARM: tegra: create defines for SD-related GPIO names ARM: tegra: add devices.c entries for audio
| * ARM: tegra: Add Toshiba AC100 supportMarc Dietrich2011-03-07
| | | | | | | | | | | | | | | | This patch adds the config infrastructure, the pinmux and basic board setup code for PAZ00 (name of board inside the AC100/AZ). Signed-off-by: Marc Dietrich <marvin24@gmx.de> Signed-off-by: Olof Johansson <olof@lixom.net>
* | Merge branch 'usb-next' of ↵Linus Torvalds2011-03-16
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6 * 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (172 commits) USB: Add support for SuperSpeed isoc endpoints xhci: Clean up cycle bit math used during stalls. xhci: Fix cycle bit calculation during stall handling. xhci: Update internal dequeue pointers after stalls. USB: Disable auto-suspend for USB 3.0 hubs. USB: Remove bogus USB_PORT_STAT_SUPER_SPEED symbol. xhci: Return canceled URBs immediately when host is halted. xhci: Fixes for suspend/resume of shared HCDs. xhci: Fix re-init on power loss after resume. xhci: Make roothub functions deal with device removal. xhci: Limit roothub ports to 15 USB3 & 31 USB2 ports. xhci: Return a USB 3.0 hub descriptor for USB3 roothub. xhci: Register second xHCI roothub. xhci: Change xhci_find_slot_id_by_port() API. xhci: Refactor bus suspend state into a struct. xhci: Index with a port array instead of PORTSC addresses. USB: Set usb_hcd->state and flags for shared roothubs. usb: Make core allocate resources per PCI-device. usb: Store bus type in usb_hcd, not in driver flags. usb: Change usb_hcd->bandwidth_mutex to a pointer. ...
| * ARM: tegra: Add support for Tegra USB PHYsBenoit Goby2011-03-11
| | | | | | | | | | | | | | | | Interface used by Tegra's gadget driver and ehci driver to power on and configure the USB PHYs. Signed-off-by: Benoit Goby <benoit@android.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | ARM: tegra: add seaboard, wario and kaen boardsOlof Johansson2011-02-22
| | | | | | | | | | | | | | | | | | This adds board support for the Seaboard eval platform and some of the derivatives that are very similar. Since they only differ in some very minor ways, most of the code is shared. Signed-off-by: Olof Johansson <olof@lixom.net> Acked-by: Colin Cross <ccross@android.com>
* | ARM: tegra: Hide EMC scaling config behind ARCH_TEGRAMark Brown2011-02-22
| | | | | | | | | | | | | | | | The option isn't terribly useful on other ARM platforms. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Colin Cross <ccross@android.com>
* | ARM: tegra: Add external memory controller driverColin Cross2011-02-21
| | | | | | | | | | | | | | | | | | | | | | | | | | The frequency memory bus on Tegra can be adjusted without disabling accesses to memory by updating the memory configuration registers from a per-board table, and then changing the clock frequency. The clock controller and memory controller have an interlock that prevents the new memory registers from taking effect until the clock frequency change. Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Colin Cross <ccross@android.com>
* | ARM: tegra: add TrimSlice boardMike Rapoport2011-02-10
|/ | | | | | | Add basic support for CompuLab TrimSlice platform Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Colin Cross <ccross@android.com>
* tegra: add PCI Express supportMike Rapoport2010-10-21
| | | | | | | | | Change-Id: Ibd0bcd46895eb88952b9db29e1f68572d39aae01 Signed-off-by: Mike Rapoport <mike@compulab.co.il> Acked-by: Arnd Bergmann <arnd@arndb.de> CC: Russell King <linux@arm.linux.org.uk> CC: Gary King <GKing@nvidia.com> Signed-off-by: Colin Cross <ccross@android.com>
* [ARM] tegra: Add APB DMA supportColin Cross2010-10-21
| | | | | | | | | | | | | | | | | The APB DMA block handles DMA transfers to and from some peripherals in the Tegra SOC. It reads from sequential addresses on the memory bus, and writes repeatedly to the same address on the APB bus. Two transfer modes are supported, oneshot for transferring a known size to or from a peripheral, and continuous for streaming data. In continuous mode, a callback occurs when the buffer is half full to allow the existing data to be handled and a new request queued.x v2 changes: dma API no longer uses PTR_ERR Signed-off-by: Erik Gilling <konkers@android.com> Signed-off-by: Colin Cross <ccross@android.com>
* [ARM] tegra: add GPIO supportErik Gilling2010-08-05
| | | | | | | | | | | | | | | | v2: fixes from Mike Rapoport: - move gpio-names.h to arch/arm/mach-tegra fixes from Russell King - include linux/io.h and linux/gpio.h instead of asm/io.h and asm/gpio.h additional changes: - add macros to convert between irq and gpio numbers for platform data - change for_each_bit to for_each_set_bit in gpio.c v3: - minor bugfixes Signed-off-by: Colin Cross <ccross@android.com> Signed-off-by: Erik Gilling <konkers@android.com>
* [ARM] tegra: initial tegra supportErik Gilling2010-08-05
v2: Fixes from Mike Rapoport - remove unused header files (mach/dma.h and mach/nand.h) - remove tegra 1 references from Makefile.boot v2: fixes from Russell King - remove mach/io.h include from mach/iomap.h - fix whitespace in Kconfig v2: from Colin Cross - fix invalid immediate in debug-macro.S v3: - allow selection of multiple boards Signed-off-by: Colin Cross <ccross@android.com> Signed-off-by: Erik Gilling <konkers@android.com>