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* dm: core: remove unnecessary return condition in uclass lookupMasahiro Yamada2014-11-22-3/+0
| | | | | | | | | | These conditions never happen. - There is no real uclass with UCLASS_INVALID id. - uclass never becomes NULL because ll_entry_start() always returns a valid pointer. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Simon Glass <sjg@chromium.org>
* dm: core: remove unnecessary return condition in driver lookupMasahiro Yamada2014-11-22-3/+0
| | | | | | | | | | The variable "drv" never becomes NULL because ll_entry_start() always returns a valid pointer even if there are no entries. The case "n_ents == 0" is covered by the following "for" loop. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Simon Glass <sjg@chromium.org>
* dm: core: remove meaningless if conditionalMasahiro Yamada2014-11-22-2/+1
| | | | | | | | | | | | | | | | | | | | | If the variable "ret" is equal to "-ENOENT", it is trapped at [1] and never reaches [2]. At [3], the condition "ret != -ENOENT" is always true. if (ret == -ENOENT) { <------------------ [1] continue; } else if (ret == -ENODEV) { dm_dbg("Device '%s' has no compatible string\n", name); break; } else if (ret) { <------------------ [2] dm_warn("Device tree error at offset %d\n", offset); if (!result || ret != -ENOENT) <------------------ [3] result = ret; break; } Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Simon Glass <sjg@chromium.org>
* dm: core: a trivial clean upMasahiro Yamada2014-11-22-3/+1
| | | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Simon Glass <sjg@chromium.org>
* cros_ec: Fix uninitialised variable in cros_ec.cSimon Glass2014-11-22-0/+1
| | | | | | | | | This fixes this cppcheck report: [drivers/misc/cros_ec.c:704]: (error) Uninitialized variable: req Signed-off-by: Simon Glass <sjg@chromium.org> Reported-by: Wolfgang Denk <wd@denx.de>
* dm: spi: Use device_bind_driver() instead of our own functionSimon Glass2014-11-22-37/+2
| | | | | | | | | | The SPI function does the same thing, so we may as well just use the new generic function. The 'cs' parameter was not actually used, so can be dropped. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de>
* dm: spi: Correct handling of SPI chip selects in sandboxSimon Glass2014-11-22-11/+12
| | | | | | | | | This code was not updated when the chip select handling was adjusted. Fix it to call the correct function. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de>
* dm: Add a function to bind a device by driver nameSimon Glass2014-11-22-0/+34
| | | | | | | | | In some cases we need to manually bind a device to a particular driver. Add a function to do this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de>
* dm: fdt: Correct handling of aliases with embedded digitsSimon Glass2014-11-22-3/+3
| | | | | | | | | | Since we scan from left to right looking for the first digit, "i2c0" returns 2 instead of 0 for the alias number. Adjust the code to scan from right to left instead. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Heiko Schocher <hs@denx.de> Reviewed-by: Tom Rini <trini@ti.com>
* dm: core: Add functions to find parent and OF dataSimon Glass2014-11-22-0/+13
| | | | | | | | Add dev_get_parent() as a convenience to obtain the parent of a device. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@ti.com> Acked-by: Heiko Schocher <hs@denx.de>
* dm: core: Allow access to the device's driver_id dataSimon Glass2014-11-22-6/+30
| | | | | | | | | When the device is created from a device tree node, it matches a compatible string. Allow access to that string and the associated data. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@ti.com> Acked-by: Heiko Schocher <hs@denx.de>
* dm: i2c: Move error reporting into a common functionSimon Glass2014-11-21-10/+22
| | | | | | | | Factor out the common code to make it easier to adjust it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@ti.com> Acked-by: Heiko Schocher <hs@denx.de>
* dm: Update documentation to include CONFIG_DM... optionsSimon Glass2014-11-21-10/+153
| | | | | | | Add documentation for the various driver model options that are now available. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: arm: spl: Make driver model linker lists availableSimon Glass2014-11-21-0/+7
| | | | | | | | The linker lists feature is useful in SPL as it holds the driver model platform data. So don't throw away the lists. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@ti.com>
* dm: tegra: Add platform data for the GPIO driverSimon Glass2014-11-21-0/+8
| | | | | | | | Add platform data for the GPIO driver. It doesn't need to contain anything since the GPIO driver will actually use information from the CONFIGs for now. This merely serves to ensure that the GPIO driver is bound. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: tegra: Add platform data for the SPL uartSimon Glass2014-11-21-0/+16
| | | | | | | Since we currently don't have device tree available in SPL, add platform data so the uart works. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: Disable dm_warn() in SPLSimon Glass2014-11-21-0/+7
| | | | | | | | Since this function can use up quite a bit of space for its strings, disable it by default in SPL. Use CONFIG_DM_WARN to re-enable it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@ti.com>
* dm: Allow stdio registration to be droppedSimon Glass2014-11-21-3/+8
| | | | | | | | | Provide a CONFIG_DM_STDIO option to enable registering a serial device with the stdio library. This is seldom useful in SPL, so disable it by default when building for SPL. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@ti.com>
* dm: Allow device removal features to be droppedSimon Glass2014-11-21-169/+203
| | | | | | | | | For SPL we don't expect to need to remove a device. Save some code space by dropping this feature. The board config can define CONFIG_DM_DEVICE_REMOVE if this is in fact needed. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@ti.com>
* dm: spl: Allow driver model to be usedSimon Glass2014-11-21-0/+6
| | | | | | | | When enabled, set up driver model for SPL. This allows SPL to use the same drivers as the main U-Boot. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Tom Rini <trini@ti.com>
* dm: spl: Make simple malloc() available when enabledSimon Glass2014-11-21-1/+10
| | | | | | | Set up the simple malloc() implementation when requested, in preference to the full malloc(). Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: arm: spl: Allow simple malloc() in SPLSimon Glass2014-11-21-1/+1
| | | | | | | | For SPL it is sometimes useful to have a simple malloc() just to permit driver model to work, in the cases where the full malloc() is not made available by the board config. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: Split the simple malloc() implementation into its own fileSimon Glass2014-11-21-38/+87
| | | | | | | | | | | | | | | | | | | | The simple malloc() implementation is used when memory is tight. It provides a simple buffer with an incrementing pointer. At present the implementation is inside dlmalloc. Move it into its own file so that it is easier to find. Rather than using relocation as a signal that the full malloc() is available, add a special GD_FLG_FULL_MALLOC_INIT flag. This signals that the simple malloc() should no longer be used. In some cases, such as SPL, even the code space used by the full malloc() is wasteful. Add a CONFIG_SYS_MALLOC_SIMPLE option to provide only the simple malloc. In this case the full malloc is not available at all. It saves about 1KB of code space and about 0.5KB of data on Thumb 2. Acked-by: Tom Rini <trini@ti.com> Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: tegra: Avoid using arch-specific memcpy() in SPLSimon Glass2014-11-21-0/+2
| | | | | | | The faster functions are not actually available in SPL and the code size likely isn't worth it. Use the normal memcpy() in SPL. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: serial: Support changing the baud rateSimon Glass2014-11-21-0/+67
| | | | | | | Implement this feature in the uclass so that the baudrate can be changed with 'setenv baudrate <rate>'. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: at91: Add myself as maintainer for snapper9260Simon Glass2014-11-21-1/+1
| | | | | | The old maintainer has left, so take this over. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: at91: Convert snapper9260 to use driver modelSimon Glass2014-11-21-3/+24
| | | | | | | | | Convert this at91sam9260-based board to use driver model. This should serve as an example for other similar boards. Serial and GPIO are supported so far. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Andreas Bießmann <andreas.devel@googlemail.com>
* dm: at91: Add driver model support for the serial driverSimon Glass2014-11-21-0/+99
| | | | | | | | Add driver model support while retaining the existing legacy code. This allows the driver to support boards that have converted to driver model as well as those that have not. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: at91: Refactor serial driver slightly for driver modelSimon Glass2014-11-21-9/+23
| | | | | | | | Before adding driver model support, split out a few of the functions so that they can be used by the driver model code. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Andreas Bießmann <andreas.devel@googlemail.com>
* dm: at91: Add platform data for GPIO on at91sam9260-based boardsSimon Glass2014-11-21-1/+17
| | | | | | | | These boards all have the same GPIO arrangement, so add some common platform data that can be used by all boards. Remove the configs which are no longer required. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: at91: Add driver model support for atmel GPIO driverSimon Glass2014-11-21-54/+193
| | | | | | | Modify this driver to support driver model, with platform data required to determine the GPIOs that it controls. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: at91: Move snapper9260 to generic baordSimon Glass2014-11-21-0/+1
| | | | | | This works correctly, so switch it over before the deadline. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: at91: Correct text base for snapper9260Simon Glass2014-11-21-1/+1
| | | | | | The value should be 0x21f00000. Fix it. Signed-off-by: Simon Glass <sjg@chromium.org>
* Merge branch 'master' of git://git.denx.de/u-boot-ubiTom Rini2014-11-19-0/+9
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| * ubi: enable error reporting in initializationAndrew Ruder2014-11-19-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The UBI layer will disable much of its error reporting when it is compiled into the linux kernel to avoid stopping boot. We want this error reporting in U-Boot since we don't initialize the UBI layer until it is used and want the error reporting. We force this by telling the UBI layer we are building as a module. Signed-off-by: Andrew Ruder <andrew.ruder@elecsyscorp.com> Cc: Wolfgang Denk <wd@denx.de> Cc: Heiko Schocher <hs@denx.de> Cc: Kyungmin Park <kmpark@infradead.org>
| * mtd, cfi, ubi: add missing writebufsize initializationHeiko Schocher2014-11-19-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | ff94bc40af3481d47546595ba73c136de6af6929 "mtd, ubi, ubifs: resync with Linux-3.14" introduced the writebufsize field in struct mtd_info, which is not initialized in the cfi_flash driver, which leads in not working ubi on cfi flashes. Fix it Signed-off-by: Heiko Schocher <hs@denx.de> Reported-by: Andrew Ruder <andrew.ruder@elecsyscorp.com> Acked-by: Stefan Roese <sr@denx.de> Acked-by: Andrew Ruder <andrew.ruder@elecsyscorp.com>
* | Merge branch 'master' of git://git.denx.de/u-boot-i2cTom Rini2014-11-19-424/+350
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| * | blackfin: convert to use CONFIG_SYS_I2C frameworkScott Jiang2014-11-17-165/+83
| | | | | | | | | | | | Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com>
| * | adi_i2c: convert to use general io accessors.Scott Jiang2014-11-17-68/+77
| | | | | | | | | | | | Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com>
| * | blackfin: rename bfin-twi_i2c driver to adi_i2cScott Jiang2014-11-17-26/+25
| | | | | | | | | | | | Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com>
* | | Merge branch 'master' of git://git.denx.de/u-boot-mpc5xxxTom Rini2014-11-19-0/+19
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| * | | powerpc: mpc52xx: Clear GD in the main U-Boot stage for SPL usageStefan Roese2014-11-19-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When an MPC5200 based board is used with SPL support, the main U-Boot needs to clear the GD (global data) struct again. Otherwise the generic board init code in board_init_f (when CONFIG_SYS_GENERIC_BOARD is defined) will not initialize all GD variables correctly. Resulting in a hangup on the a4m2k board. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Wolfgang Denk <wd@denx.de>
| * | | powerpc: mpc52xx: a3m071/a4m2k: Convert to generic boardStefan Roese2014-11-19-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | a3m071 and a4m2k share one config header. So adding the generic board defines in this one file is enough to convert both boards. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Wolfgang Denk <wd@denx.de>
| * | | powerpc: mpc52xx: a4m072: Convert to generic boardStefan Roese2014-11-19-0/+2
| | |/ | |/| | | | | | | | | | Signed-off-by: Stefan Roese <sr@denx.de> Cc: Wolfgang Denk <wd@denx.de>
* | | mpc83xx: Add gdsys hrcon boardDirk Eibach2014-11-19-195/+2282
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The gdsys hrcon board is based on a Freescale MPC8308 SOC. It boots from NOR-Flash, kernel and rootfs are stored on SD-Card. On board peripherals include: - 1x GbE (optional) - Lattice ECP3 FPGA connected via eLBC and PCIe Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc> Signed-off-by: Stefan Roese <sr@denx.de>
* | | board: iocon: Fix uninitialized accessDirk Eibach2014-11-19-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | Wolfgang Denk found this issue using cppcheck: (error) Uninitialized variable: fpga_features Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc> Signed-off-by: Stefan Roese <sr@denx.de>
* | | board: iocon: Fix fpga index in print_fpga_info()Dirk Eibach2014-11-19-4/+4
| | | | | | | | | | | | | | | Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc> Signed-off-by: Stefan Roese <sr@denx.de>
* | | board: dlvision-10g: Compile fixDirk Eibach2014-11-19-4/+3
| | | | | | | | | | | | | | | Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc> Signed-off-by: Stefan Roese <sr@denx.de>
* | | common: Fix cmd_fpgad addressingDirk Eibach2014-11-19-8/+24
| | | | | | | | | | | | | | | | | | | | | Addressing was completely broken for cmd_fpgad. Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc> Signed-off-by: Stefan Roese <sr@denx.de>
* | | mtd: Handle 29LV800BTDirk Eibach2014-11-19-0/+52
| | | | | | | | | | | | | | | | | | | | | | | | | | | The device id makes u-boot think that this chip needs cfi_reverse_geometry(), which is not the case. Add it to jedec_flash, so it is handled properly. Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc> Signed-off-by: Stefan Roese <sr@denx.de>