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* tegra: i2c: Enable I2C on SeaboardSimon Glass2012-03-29-0/+8
| | | | | | | | This enables I2C on Seaboard. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Heiko Schocher <hs@denx.de> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra: i2c: Select number of controllers for Tegra2 boardsSimon Glass2012-03-29-0/+3
| | | | | | | | | The Tegra 2x SOC has four ports, so define TEGRA_I2C_NUM_CONTROLLERS in the shared config file. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Heiko Schocher <hs@denx.de> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra: i2c: Initialise I2C on Nvidia boardsSimon Glass2012-03-29-0/+7
| | | | | | | | | This enables I2C on all Nvidia boards including Seaboard and Harmony. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Heiko Schocher <hs@denx.de> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra: Enhance clock support to handle 16-bit clock divisorsSimon Glass2012-03-29-24/+49
| | | | | | | | I2C ports have a 16-bit clock divisor. Add code to handle this special case so that I2C speeds below 150KHz are supported. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* fdt: Add function to allow aliases to refer to multiple nodesSimon Glass2012-03-29-4/+41
| | | | | | | | | | | | | | | | | | | Some devices can deal with multiple compatible properties. The devices need to know which nodes to bind to which features. For example an I2C driver which supports two different controller types will want to know which type it is dealing with in each case. The new fdtdec_add_aliases_for_id() function deals with this by allowing the driver to search for additional compatible nodes for a different ID. It can then detect the new ones and perform appropriate processing. Another option considered was to return a tuple (node offset, compat id) and have the function be passed a list of compatible IDs. This is more overhead for the common case though. We may add such a function later if more drivers in U-Boot require it. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra: Rename NV_PA_PMC_BASE to TEGRA2_PMC_BASESimon Glass2012-03-29-8/+8
| | | | | | | | | Change this name to fit with the current convention in the Tegra header file. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra: fdt: Enable FDT support for VentanaTom Warren2012-03-29-0/+5
| | | | | | | | | | | | | This switches Ventana over to use FDT for run-time config instead of CONFIG options. At present Ventana does not have its own device tree file - it just uses the Seaboard one. Signed-off-by: Tom Warren <twarren@nvidia.com> Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra: fdt: Enable FDT support for SeaboardSimon Glass2012-03-29-0/+5
| | | | | | | | This switches Seaboard over to use FDT for run-time config instead of CONFIG options. USB is the only user at present. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra: usb: Enable USB on SeaboardSimon Glass2012-03-29-0/+7
| | | | | | | | Seaboard has a top port which is USB host or device, and a side port which is host only. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra: usb: Add common USB defines for tegra2 boardsSimon Glass2012-03-29-0/+10
| | | | | | | | All Tegra2 boards should include tegra2-common. This adds the required USB config to that file. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra: usb: Add USB support to nvidia boardsSimon Glass2012-03-29-0/+24
| | | | | | | | | | | | | | | | | | This adds basic USB support for port 0. The other port is not supported yet. Tegra2 (SeaBoard) # usb start (Re)start USB... USB: Register 10011 NbrPorts 1 USB EHCI 1.00 scanning bus for devices... 5 USB Device(s) found scanning bus for storage devices... 1 Storage Device(s) found Tegra2 (SeaBoard) # ext2load usb 0:3 10000000 /boot/vmlinuz Loading file "/boot/vmlinuz" from usb device 0:3 (ROOT-A) 2932976 bytes read Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* arm: Check for valid FDT after console is upSimon Glass2012-03-29-0/+8
| | | | | | | | When using CONFIG_OF_CONTROL, add a check that we have a valid FDT and panic() if not. This must be done after the console is ready. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* fdt: Avoid early panic() when there is no FDT presentSimon Glass2012-03-29-7/+34
| | | | | | | | | | | | CONFIG_OF_CONTROL requires a valid device tree. However, we cannot call panic() before the console is set up since the message does not appear, and we get a silent failure. Remove the panic from fdtdec_check_fdt() and provide a new function to prepare the fdt for use. This will be called after the console is ready. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra: usb: Add support for Tegra USB peripheralSimon Glass2012-03-29-1/+782
| | | | | | | | | | | | | | | | | | This adds basic support for the Tegra2 USB controller. Board files should call board_usb_init() to set things up. Configuration is performed through the FDT, with aliases used to set the order of the ports, like this fragment: aliases { /* This defines the order of our USB ports */ usb0 = "/usb@0xc5008000"; usb1 = "/usb@0xc5000000"; }; drivers/usb/host files ONLY: Acked-by: Remy Bohmer <linux@bohmer.net> Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra: fdt: Add function to return peripheral/clock IDSimon Glass2012-03-29-0/+71
| | | | | | | | | A common requirement is to find the clock ID for a peripheral. This is the second cell of the 'clocks' property (the first being the phandle itself). Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* usb: Add support for txfifo thresholdSimon Glass2012-03-29-1/+15
| | | | | | | | | CONFIG_USB_EHCI_TXFIFO_THRESH enables setting of the txfilltuning field in the EHCI controller on reset. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Remy Bohmer <linux@bohmer.net> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra: usb: fdt: Add USB definitions for Tegra2 SeaboardSimon Glass2012-03-29-0/+11
| | | | | | | | We set up two USB ports, one of which can be host or device. For some reason the kernel version does enable both ports. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra: usb: fdt: Add additional device tree definitions for USB portsSimon Glass2012-03-29-0/+4
| | | | | | | | | | | | | | This adds clock references to the USB part of the device tree for U-Boot, and marks USB1 as supporting legacy mode (which we disable in the driver). The USB timing information may vary between boards sometimes, but for now we hard-code it in C. This is because all current T2x boards use the same values, we will deal with T3x later and we first need to agree on the format for this timing information in the fdt and may in fact decide that it has no place there. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra: fdt: Add clock bindings for Tegra2 SeaboardSimon Glass2012-03-29-0/+27
| | | | | | | | | | | Add the definition of the oscillator clock frequency and the 32KHz clock. The latter is provided by a PMIC on I2C which we don't actually use at present, but we expect this definition to be used in the kernel and want to keep our .dts the same. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra: fdt: Add clock bindingsSimon Glass2012-03-29-0/+223
| | | | | | | | | | | | | | | | | This adds a basic binding for the oscillator and peripheral clocks. The second cell is the clock number, defined as the bit number within the clock enable register if the peripheral clock. This uses the RFC clock bindings from Grant Likely so may change later: https://lkml.org/lkml/2011/12/12/498 It is taken from Stephen Warren's patch here: http://patchwork.ozlabs.org/patch/141359/ Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra: fdt: Add additional USB bindingSimon Glass2012-03-29-0/+12
| | | | | | | | | This adds a property to indicate a port which can switch between host and device mode. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
* fdt: Add tegra-usb bindings file from linuxSimon Glass2012-03-29-0/+13
| | | | | | | This file is taken from the Linux mailing list. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* fdt: Add staging area for device tree binding documentationSimon Glass2012-03-29-0/+17
| | | | | | | | Add a directory to hold device tree binding files, to permit easy review of this material in U-Boot patches. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra: fdt: Add device tree file for Tegra2 Seaboard from kernelSimon Glass2012-03-29-0/+36
| | | | | | | | This was taken from commit b48c54e2 at: git://git.kernel.org/pub/scm/linux/kernel/git/olof/tegra.git Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra: fdt: Add Tegra2x device tree file from kernelSimon Glass2012-03-29-0/+170
| | | | | | | | | | | | | This was taken from commit b48c54e2 at: git://git.kernel.org/pub/scm/linux/kernel/git/olof/tegra.git config.mk is updated to provide this file to boards through the built-in mechanism: /include/ ARCH_CPU_DTS Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* arm: fdt: Add skeleton device tree file from kernelSimon Glass2012-03-29-0/+13
| | | | | | | | This was taken from commit b48c54e2 at: git://git.kernel.org/pub/scm/linux/kernel/git/olof/tegra.git Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* fdt: Add basic support for decoding GPIO definitionsSimon Glass2012-03-29-0/+124
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds some support into fdtdec for reading GPIO definitions from the fdt. We permit up to FDT_GPIO_MAX GPIOs in the system. Each GPIO is of the form: gpio-function-name = <phandle gpio_num flags>; where: phandle is a pointer to the GPIO node gpio_num is the number of the GPIO (0 to 223) flags is a flag, as follows: bit meaning 0 0=polarity normal, 1=active low (inverted) An example is: enable-propounder-gpios = <&gpio 43 0>; which means that GPIO 43 is used to enable the propounder (setting the GPIO high), or that you can detect that the propounder is enabled by checking if the GPIO is high (the fdt does not indicate input/output). Two main functions are provided: fdtdec_decode_gpio() reads a GPIO property from an fdt node and decodes it into a structure. fdtdec_setup_gpio() sets up the GPIO by calling gpio_request for you. Both functions can cope with the property being missing, which is taken to mean that that GPIO function is not available or is not needed. [For reference, from Stephen Warren <swarren@nvidia.com>. It may be that we add this extra complexity later if needed: The correct way to parse such a GPIO property in general is: * Read the first cell. * Find the node referenced by the phandle (the controller). * Ensure property gpio-controller is present in the controller node. * Read property #gpio-cells from the controller node. * Extract #gpio-cells from the original property. * Keep processing more cells from the original property; there may be multiple GPIOs listed. According to the binding documentation in the Linux kernel, Samsung Exynos4 doesn't use this format, and while all other chips do have a flags cell, about 50% of the controllers indicate the cell is unused. ] Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* fdt: Add functions to access phandles, arrays and boolsSimon Glass2012-03-29-0/+106
| | | | | | | | | | | | Add a function to look up a property which is a phandle in a node, and another to read a fixed-length integer array from an fdt property. Also add a function to read boolean properties, although there is no actual boolean type in U-Boot. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Gerald Van Baren <vanbaren@cideas.com> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
* fdt: Tidy up a few fdtdec problemsSimon Glass2012-03-29-10/+35
| | | | | | | | | | | | | | | | This fixes five trivial issues in fdtdec.c: 1. fdtdec_get_is_enabled() doesn't really need a default value 2. The fdt must be word-aligned, since otherwise it will fail on ARM 3. The compat_names[] array is missing its first element. This is needed only because the first fdt_compat_id is defined to be invalid. 4. Added a header prototype for fdtdec_next_compatible() 5. Change fdtdec_next_alias() to only increment its 'upto' parameter on success, to make the display error messages in the caller easier. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Gerald Van Baren <vanbaren@cideas.com> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
* fdt: Add tests for fdtdecSimon Glass2012-03-29-0/+227
| | | | | | | | | | | | The fdtdec_find_aliases_for_id() function is complicated enough that it really should have some tests. This does not necessarily need to be committed to U-Boot, but it might be useful. (note there are a few minor inconsistencies with this patch which will be cleaned up when the USB series is applied) Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* fdt: Add fdtdec_find_aliases() to deal with alias nodesSimon Glass2012-03-29-0/+163
| | | | | | | | | | | | | | | | Stephen Warren pointed out that we should use nodes whether or not they have an alias in the /aliases section. The aliases section specifies the order so far as it can, but is not essential. Operating without alisses is useful when the enumerated order of nodes does not matter (admittedly rare in U-Boot). This is considerably more complex, and it is important to keep this complexity out of driver code. This patch creates a function fdtdec_find_aliases() which returns an ordered list of node offsets for a particular compatible ID, taking account of alias nodes. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* arm: Tegra2: Fix ELDK42 gcc failure with inline asm stack pointer loadTom Warren2012-03-29-5/+5
| | | | | | | | | | | | | The 4.2.2 gcc in the ELDK42 release doesn't like the direct SP load using a constant in tegra2_start. Change it to use a load thru another reg using mov sp, %0 : : "r"(CONST). Tested on my Seaboard T20-A03, U-Boot loads and runs OK. Also compiled all tegra2 builds with both gcc 4.2.2 and 4.4.1 OK. Signed-off-by: Tom Warren <twarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
* net: fec_mxc: allow use with cache enabledEric Nelson2012-03-29-104/+192
| | | | | | | | | | | | | Ensure that transmit and receive buffers are cache-line aligned. Invalidate cache for each packet as received, update receive buffer descriptors one cache line at a time, flush cache before transmitting. Original patch by Marek: http://lists.denx.de/pipermail/u-boot/2012-February/117695.html Signed-off-by: Eric Nelson <eric.nelson at boundarydevices.com> Acked-by: Marek Vasut <marex@denx.de> Tested-by: Marek Vasut <marex@denx.de>
* net: force PKTALIGN to ARCH_DMA_MINALIGNEric Nelson2012-03-29-1/+2
| | | | | | | This will prevent the need for architectures whose DMA alignment is greater than 32 to have bounce buffers. Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
* i.MX28: Enable caches by defaultMarek Vasut2012-03-29-0/+10
| | | | | Signed-off-by: Marek Vasut <marex@denx.de> Cc: Stefano Babic <sbabic@denx.de>
* i.MX28: Make use of the bounce bufferMarek Vasut2012-03-29-0/+2
| | | | | | | | This allows i.MX28 MMC host to fully utilize DMA transfers and caches, greatly improving speed. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Fabio Estevam <festevam@gmail.com>
* i.MX28: Do data transfers via DMA in MMC driverMarek Vasut2012-03-29-30/+40
| | | | | | | | | This utilizes the newly introduced bounce buffers in the MMC layer. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Stefano Babic <sbabic@denx.de> Cc: Andy Fleming <afleming@gmail.com> Cc: Fabio Estevam <festevam@gmail.com>
* MMC: Implement generic bounce bufferMarek Vasut2012-03-29-3/+99
| | | | | | | | | | This implements generic bounce buffer at the end of MMC command submission chain. Therefore if unaligned data are passed, they are copied. This stuff should be pushed down into the MMC subsystem to squash all places generating these unaligned data. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andy Fleming <afleming@gmail.com>
* i.MX28: Add cache support to MXS NAND driverMarek Vasut2012-03-29-3/+50
| | | | | Signed-off-by: Marek Vasut <marex@denx.de> Cc: Stefano Babic <sbabic@denx.de>
* i.MX28: Add cache support into the APBH DMA driverMarek Vasut2012-03-29-1/+22
| | | | | | | The desc_append() now flushes descriptors into RAM. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Stefano Babic <sbabic@denx.de>
* ARM926EJS: Implement cache operationsMarek Vasut2012-03-29-12/+54
| | | | | | Signed-off-by: Marek Vasut <marex@denx.de> Cc: Stefano Babic <sbabic@denx.de> Acked-by: Stefano Babic <sbabic@denx.de>
* board/vpac270/onenand.c: Fix build errorsAnatolij Gustschin2012-03-28-3/+0
| | | | | | | | | | | | | | | | | | | | Building for vpac270_ond_256 configuration fails: arch/arm/lib/libarm.o: In function `icache_disable': /home/ag/git/u-boot/arch/arm/lib/cache-cp15.c:156: multiple definition of `icache_disable' board/vpac270/libvpac270.o:/home/ag/git/u-boot/board/vpac270/onenand.c:65: first defined here arch/arm/lib/libarm.o: In function `dcache_disable': /home/ag/git/u-boot/arch/arm/lib/cache-cp15.c:188: multiple definition of `dcache_disable' board/vpac270/libvpac270.o:/home/ag/git/u-boot/board/vpac270/onenand.c:66: first defined here make[1]: *** [/home/ag/git/u-boot/spl/u-boot-spl] Error 1 Signed-off-by: Anatolij Gustschin <agust@denx.de> Cc: Marek Vasut <marek.vasut@gmail.com> Acked-by: Marek Vasut <marex@denx.de>
* nhk8815: fix build errorsAnatolij Gustschin2012-03-28-0/+10
| | | | | | | | | | | | | Fix: common/libcommon.o: In function `cread_line': /home/ag/git/u-boot/common/main.c:695: undefined reference to `get_ticks' /home/ag/git/u-boot/common/main.c:695: undefined reference to `get_tbclk' /home/ag/git/u-boot/common/main.c:698: undefined reference to `get_ticks' Signed-off-by: Anatolij Gustschin <agust@denx.de> Cc: Alessandro Rubini <rubini@unipv.it> Acked-by: Marek Vasut <marex@denx.de> Acked-by: Alessandro Rubini <rubini@unipv.it>
* atmel-boards: add missing atmel_mci.hAndreas Bießmann2012-03-28-0/+2
| | | | | | | | | | | | | | | | | | | commit 72fa467988e7944407a634ddc4bc6a2df685c04c moved atmel_mci_init() into include/atmel_mci.h. Some AT91 boards are also using this interface and need to include atmel_mci.h now. This patch fixes MAKEALL complaints like this: ---8<--- Configuring for ethernut5 - Board: ethernut5, Options: AT91SAM9XE ethernut5.c: In function 'board_mmc_init': ethernut5.c:235:2: warning: implicit declaration of function 'atmel_mci_init' [-Wimplicit-function-declaration] --->8--- Signed-off-by: Andreas Bießmann <biessmann@corscience.de> CC: Albert Aribaud <albert.u.boot@aribaud.net> CC: Reinhard Meyer <u-boot@emk-elektronik.de> CC: egnite GmbH <info@egnite.de>
* ARM: highbank: setup env from boot source registerRob Herring2012-03-28-0/+13
| | | | | | | | | Add support to read the boot src register and set bootcmd env from the selected bootcmdX env setting. Based on Linkstation boot choice selection. Signed-off-by: Rob Herring <rob.herring@calxeda.com>
* ARM: highbank: change env config to use nvramJason Hobbs2012-03-28-9/+7
| | | | | | | | Update the highbank config to use env from NVRAM. Also remove extra env settings as they are not used unless the default env is used. Signed-off-by: Jason Hobbs <jason.hobbs@calxeda.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
* ARM: highbank: add reset supportRob Herring2012-03-28-0/+9
| | | | | | | Implement reset for highbank platform. Reset is triggered via a wfi instruction, so enabling armv7 for the compiler is necessary. Signed-off-by: Rob Herring <rob.herring@calxeda.com>
* ARM: highbank: Add boot counter supportRob Herring2012-03-28-1/+41
| | | | | | Add boot counter support using an sysreg which is persistent across reset. Signed-off-by: Rob Herring <rob.herring@calxeda.com>
* ARM: highbank: change TEXT_BASE to 0x8000Rob Herring2012-03-28-1/+1
| | | | | | | Make some space at the beginning of RAM so the FDT can be loaded to a known fixed address at 0x1000. Signed-off-by: Rob Herring <rob.herring@calxeda.com>
* ARM: highbank: fix us_to_tick calculationRob Herring2012-03-28-2/+2
| | | | | | | udelay calls were off due to failing to convert us to ns. Fix this and drop the unnecessary shifts since NS_PER_TICK is only 7ns. Signed-off-by: Rob Herring <rob.herring@calxeda.com>
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