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* mmc: Implement SD/MMC versioning properlyPantelis Antoniou2015-02-23-21/+43
| | | | | | | | | | | The SD/MMC version scheme was buggy when dealing with standard major.minor.change cases. Fix it by using something similar to the linux's kernel versioning method. Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com> Tested-by: Jaehoon Chung <jh80.chung@samsung.com> Reported-by: Stephen Warren <swarren@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com>
* rpi: add support for Raspberry Pi 2 model BStephen Warren2015-02-21-169/+271
| | | | | | | | USB doesn't seem to work yet; the controller detects the on-board Hub/ Ethernet device but can't read the descriptors from it. I haven't investigated yet. Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
* bcm2836 SoC support (used in Raspberry Pi 2 model B)Stephen Warren2015-02-21-4/+39
| | | | | | | | | | | | The bcm2835 and bcm2836 are essentially identical, except: - The CPU is an ARM1176 v.s. a quad-core Cortex-A7. - The physical address of many IO controllers has moved. Rather than introducing a whole new bcm2836 value for $(SOC) or $(ARCH), update the existing bcm2835 code to handle the minor differences, and plumb it into the ARMv7 CPU architecture. Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
* bcm2835/rpi: add SPDX license tags for some filesStephen Warren2015-02-21-75/+9
| | | | Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
* ARM: prepare for including <mach/*.h>Masahiro Yamada2015-02-21-0/+2
| | | | | | | | | | | This commit adds $(srctree)/arch/arm/$(machdirs)/include/mach to the headers search path. It allows us to replace "#include <asm/arch/foo.h>" with "#include <mach/foo.h>". As "#include <asm/arch/foo.h>" is still supported, we can modify each file one by one. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* ARM: keystone: move SoC headers to mach-keystone/include/machMasahiro Yamada2015-02-21-0/+0
| | | | | | | | Move arch/arm/include/asm/arch-keystone/* -> arch/arm/mach-keystone/include/mach/* Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Tom Rini <trini@ti.com>
* ARM: orion5x: move SoC headers to mach-orion5x/include/machMasahiro Yamada2015-02-21-0/+0
| | | | | | | | Move arch/arm/include/asm/arch-orion5x/* -> arch/arm/mach-orion5x/include/mach/* Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
* ARM: nomadik: move SoC headers to mach-nomadik/include/machMasahiro Yamada2015-02-21-0/+0
| | | | | | | | | Move arch/arm/include/asm/arch-nomadik/* -> arch/arm/mach-nomadik/include/mach/* Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Nomadik Linux Team <STN_WMM_nomadik_linux@list.st.com> Cc: Alessandro Rubini <rubini@unipv.it>
* ARM: kirkwood: move SoC headers to mach-kirkwood/include/machMasahiro Yamada2015-02-21-2/+1
| | | | | | | | | | Move arch/arm/include/asm/arch-kirkwood/* -> arch/arm/mach-kirkwood/include/mach/* Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Stefan Roese <sr@denx.de> Cc: Prafulla Wadaskar <prafulla@marvell.com> Cc: Luka Perkov <luka.perkov@sartura.hr>
* ARM: davinci: move SoC headers to mach-davinci/include/machMasahiro Yamada2015-02-21-0/+0
| | | | | | | | Move arch/arm/include/asm/arch-davinci/* -> arch/arm/mach-davinci/include/mach/* Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Tom Rini <trini@ti.com>
* ARM: at91: move SoC headers to mach-at91/include/machMasahiro Yamada2015-02-21-1/+0
| | | | | | | | Move arch/arm/include/asm/arch-at91/* -> arch/arm/mach-at91/include/mach/* Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Andreas Bießmann <andreas.devel@googlemail.com>
* kbuild: prepare for moving headers into mach-*/include/machMasahiro Yamada2015-02-21-4/+15
| | | | | | | | | | | | | | | | | | | | | In U-Boot, SoC-specific headers are placed in arch/$(ARCH)/include/asm/arch-$(SOC) and a symbolic link to that directory is created at the early stage of the build process. Creating and removing a symbolic link during the build is not preferred. In fact, Linux Kernel did away with include/asm-$(ARCH) directories a long time time ago. As for ARM, now it is possible to collect SoC sources into arch/arm/mach-$(SOC). It is also reasonable to move SoC headers into arch/arm/mach-$(SOC)/include/mach. This commit prepares for that. If the directory arch/$(ARCH)/mach-$(SOC)/include/mach exists, a symbolic to that directory is created. Otherwise, a symbolic link to arch/$(ARCH)/include/asm/arch-$(SOC) or arch-$(CPU) is created. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* ARM: keystone: move SoC sources to mach-keystoneMasahiro Yamada2015-02-21-2/+2
| | | | | | | | Move arch/arm/cpu/armv7/keystone/* -> arch/arm/mach-keystone/* Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Tom Rini <trini@ti.com>
* ARM: versatile: move SoC sources to mach-versatileMasahiro Yamada2015-02-21-2/+2
| | | | | | | Move arch/arm/cpu/arm926ejs/versatile/* -> arch/arm/mach-versatile/* Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* ARM: orion5x: move SoC sources to mach-orion5xMasahiro Yamada2015-02-21-2/+3
| | | | | | | | Move arch/arm/cpu/arm926ejs/orion5x/* -> arch/arm/mach-orion5x/* Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
* ARM: highbank: move SoC sources to mach-highbankMasahiro Yamada2015-02-21-2/+2
| | | | | | | | Move arch/arm/cpu/armv7/highbank/* -> arch/arm/mach-highbank/* Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Rob Herring <robh@kernel.org>
* ARM: nomadik: move SoC sources to mach-nomadikMasahiro Yamada2015-02-21-2/+2
| | | | | | | | | Move arch/arm/cpu/arm926ejs/nomadik/* -> arch/arm/mach-nomadik/* Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Nomadik Linux Team <STN_WMM_nomadik_linux@list.st.com> Cc: Alessandro Rubini <rubini@unipv.it>
* ARM: kirkwood: move SOC sources to mach-kirkwoodMasahiro Yamada2015-02-21-3/+4
| | | | | | | | | | | | | | Move arch/arm/cpu/arm926ejs/kirkwood/* -> arch/arm/mach-kirkwood/* Note: Perhaps, can we merge arch/arm/mach-kirkwood and arch/arm/mvebu-common into arch/arm/mach-mvebu, like Linux? Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Stefan Roese <sr@denx.de> Cc: Prafulla Wadaskar <prafulla@marvell.com> Cc: Luka Perkov <luka.perkov@sartura.hr>
* ARM: davinci: move SoC sources to mach-davinciMasahiro Yamada2015-02-21-6/+6
| | | | | | | | Move arch/arm/cpu/arm926ejs/davinci/* -> arch/arm/mach-davinci/* Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Tom Rini <trini@ti.com>
* ARM: tegra: collect SoC sources into mach-tegraMasahiro Yamada2015-02-21-125/+38
| | | | | | | | | | | | | | | | | | | | | | | | | This commit moves files as follows: arch/arm/cpu/arm720t/tegra20/* -> arch/arm/mach-tegra/tegra20/* arch/arm/cpu/arm720t/tegra30/* -> arch/arm/mach-tegra/tegra30/* arch/arm/cpu/arm720t/tegra114/* -> arch/arm/mach-tegra/tegra114/* arch/arm/cpu/arm720t/tegra124* -> arch/arm/mach-tegra/tegra124/* arch/arm/cpu/arm720t/tegra-common/* -> arch/arm/mach-tegra/* arch/arm/cpu/armv7/tegra20/* -> arch/arm/mach-tegra/tegra20/* arch/arm/cpu/armv7/tegra30/* -> arch/arm/mach-tegra/tegra30/* arch/arm/cpu/armv7/tegra114/* -> arch/arm/mach-tegra/tegra114/* arch/arm/cpu/armv7/tegra124/* -> arch/arm/mach-tegra/tegra124/* arch/arm/cpu/armv7/tegra-common/* -> arch/arm/mach-tegra/* arch/arm/cpu/tegra20-common/* -> arch/arm/mach-tegra/tegra20/* arch/arm/cpu/tegra30-common/* -> arch/arm/mach-tegra/tegra30/* arch/arm/cpu/tegra114-common/* -> arch/arm/mach-tegra/tegra114/* arch/arm/cpu/tegra124-common/* -> arch/arm/mach-tegra/tegra124/* arch/arm/cpu/tegra-common/* -> arch/arm/mach-tegra/* Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Tested-by: Simon Glass <sjg@chromium.org> [ on nyan-big ] Cc: Stephen Warren <swarren@nvidia.com> Cc: Tom Warren <twarren@nvidia.com>
* ARM: at91: collect SoC sources into mach-at91Masahiro Yamada2015-02-21-28/+17
| | | | | | | | | | | | This commit moves source files as follows: arch/arm/cpu/arm920t/at91/* -> arch/arm/mach-at91/arm920t/* arch/arm/cpu/arm926ejs/at91/* -> arch/arm/mach-at91/arm926ejs/* arch/arm/cpu/armv7/at91/* -> arch/arm/mach-at91/armv7/* arch/arm/cpu/at91-common/* -> arch/arm/mach-at91/* Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Andreas Bießmann <andreas.devel@googlemail.co>
* ARM: prepare for moving SoC sources into mach-*Masahiro Yamada2015-02-21-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In U-boot, the directory structure, arch/$(ARCH)/cpu/$(CPU)/$(SOC)/ has been adopted except that $(CPU) is missing from some architectures and $(SOC) is missing from some CPUs. This structure did not fit very well in some cases. [1] AT91 AT91 SoC family have been developed across some ARM processor generations. Generally speaking, some IPs are often re-used in the same SoC family (same SoC vendor) even when the main processor is updated. As a result, a SoC-common directory is needed in the upper level. Currently, AT91 source files are placed as follows: arch/arm/cpu/arm920t/at91/* arch/arm/cpu/arm926ejs/at91/* arch/arm/cpu/armv7/at91/* arch/arm/cpu/at91-common/* Once directories are split, the motivation for refactorings across CPU directories is lost. Some files in arm920t/at91/ and arm926ejs/at91/ are so similar that they could be merged. [2] Tegra Tegra is a little bit special case where different CPUs are used for SPL and the main U-boot. To obey the arch/$(ARCH)/cpu/$(CPU)/$(SOC) structure, the source files must be placed across the CPUs, again SoC-common directory is necessary in the upper level. Moreover, there are several families in Tegra: Tegra20, Tegra30, Tegra114, Tegra124. Here again, the tegra-common directory is needed to contain commonly-used files. Tegra directories have been sprinkled in the directory structure. arch/arm/cpu/arm720t/tegra20 arch/arm/cpu/arm720t/tegra30 arch/arm/cpu/arm720t/tegra114 arch/arm/cpu/arm720t/tegra124 arch/arm/cpu/arm720t/tegra-common arch/arm/cpu/armv7/tegra20 arch/arm/cpu/armv7/tegra30 arch/arm/cpu/armv7/tegra114 arch/arm/cpu/armv7/tegra124 arch/arm/cpu/armv7/tegra-common arch/arm/cpu/tegra20-common arch/arm/cpu/tegra30-common arch/arm/cpu/tegra114-common arch/arm/cpu/tegra124-common arch/arm/cpu/tegra-common As you see, splitting SoC code by the CPU is not going well, especially for ARM. Why don't we collect SoC-specific files into a single place? A good example we can follow is Linux's arch/arm/mach-* structure. This item was discussed in the following thread: http://thread.gmane.org/gmane.comp.boot-loaders.u-boot/188548/ Looks like I got some positive responses and we are almost ready to start this movement. This commit prepares arch/arm/Makefile for describing machdirs in it. After this commit, we can move SoC directory to arch/arm/mach-$(SOC) in simple steps although some cases such as AT91 and Tegra need more fixes. What we generally have to do is: [1] Move files arch/arm/cpu/$(CPU)/$(SOC)/* to arch/arm/mach-$(SOC)/* [2] Add machine entry into arch/arm/Makefile [3] Remove "obj-y += $(SOC)" from arch/arm/cpu/$(CPU)/Makefile [4] Fix the Kconfig file path in arch/arm/Kconfig [5] Modify MAINTAINERS if necessary Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* ARM: at91: move board select menu and common settingsMasahiro Yamada2015-02-21-245/+255
| | | | | | | | | | | | | | | | | | | | | | | The board select menu in arch/arm/Kconfig is still big. To slim down it, this commit moves AT91 boards to arch/arm/mach-at91/Kconfig. Also, consolidate "config SYS_SOC" in each board Kconfig. The Kconfig files under board/ directory were modified with the following command: find board -name Kconfig | xargs sed -i -e ' /config SYS_SOC/ { N /default "at91"/ { N d } } ' Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Andreas Bießmann <andreas.devel@googlemail.co>
* Merge git://git.denx.de/u-boot-dmTom Rini2015-02-21-40/+371
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| * dm: Protect device_unbind() with CONFIG_DM_DEVICE_REMOVEMarek Vasut2015-02-19-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | Since device_unbind() is also defined in device-remove.c, which is compiled in only in case CONFIG_DM_DEVICE_REMOVE is defined, protect the device_unbind() prototype with the same CONFIG_DM_DEVICE_REMOVE check. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Simon Glass <sjg@chromium.org> Cc: Stefan Roese <sr@denx.de> Cc: Tom Rini <trini@ti.com> Acked-by: Simon Glass <sjg@chromium.org>
| * serial: ns16550: Support debug UARTSimon Glass2015-02-19-2/+61
| | | | | | | | | | | | | | | | Add debug UART functions to permit ns16550 to provide an early debug UART. Try to avoid using the stack so that this can be called from assembler before a stack is set up (at least on ARM and PowerPC). Signed-off-by: Simon Glass <sjg@chromium.org>
| * serial: ns16550: Add access functions that don't need platdataSimon Glass2015-02-19-18/+30
| | | | | | | | | | | | | | | | For the debug UART we need to be able to provide any parameters before driver model is set up. Add parameters to the low-level access functions to make this possible. Signed-off-by: Simon Glass <sjg@chromium.org>
| * serial: Support an early UART for debuggingSimon Glass2015-02-19-2/+185
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This came up in a discussion on the mailing list here: https://patchwork.ozlabs.org/patch/384613/ My concerns at the time were: - it doesn't need to be written in assembler - it doesn't need to be ARM-specific This patch provides a possible alternative. It works by allowing any serial driver to export one init function and provide a putc() function. These can be used to output debug data before the real serial driver is available. This implementation does not depend on driver model, and it is possible for it to operate without a stack on some architectures (e.g. PowerPC, ARM). It provides the same features as the ARM-specific debug.S but with more UART and architecture support. Signed-off-by: Simon Glass <sjg@chromium.org>
| * Documentation: gpio: fix bindings documentMasahiro Yamada2015-02-19-2/+3
| | | | | | | | | | | | | | | | [ imported from Linux Kernel, commit 74981fb81d83 ] Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Simon Glass <sjg@chromium.org>
| * dm: mx6: Adjust mx6sxsabresd to use Kconfig for DM_THERMALSimon Glass2015-02-19-2/+4
| | | | | | | | | | | | Use Kconfig instead of board config for DM and DM_THERMAL. Signed-off-by: Simon Glass <sjg@chromium.org>
| * dm: Move CONFIG_I2C_COMPAT to KconfigSimon Glass2015-02-19-2/+13
| | | | | | | | | | | | | | | | | | Make this option available in Kconfig and clean up the board that uses it. Note there is also an entry in exynos5-common.h but this affects multiple boards and should be dropped as part of the Samsung I2C migration to driver model. Signed-off-by: Simon Glass <sjg@chromium.org>
| * dm: cros_ec: Convert to KconfigSimon Glass2015-02-19-12/+71
| | | | | | | | | | | | | | | | | | Since both I2C and SPI are converted to Kconfig, we can convert cros_ec to Kconfig for these buses. LPC will need to wait until driver mode PCI is available. Signed-off-by: Simon Glass <sjg@chromium.org>
* | cmd_i2c: Provide option for bulk 'i2c write' in one transactionLubomir Popov2015-02-19-9/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I2C chips do exist that require a write of some multi-byte data to occur in a single bus transaction (aka atomic transfer), otherwise either the write does not come into effect at all, or normal operation of internal circuitry cannot be guaranteed. The current implementation of the 'i2c write' command (transfer of multiple bytes from a memory buffer) in fact performs a separate transaction for each byte to be written and thus cannot support such types of I2C slave devices. This patch provides an alternative by allowing 'i2c write' to execute the write transfer of the given number of bytes in a single bus transaction if the '-s' option is specified as a final command argument. Else the current re-addressing method is used. Signed-off-by: Lubomir Popov <l-popov@ti.com> hs: adapt to CONFIG_DM_I2C
* | cmd_i2c: quit I2C commands immediately on errorMasahiro Yamada2015-02-19-13/+13
|/ | | | | | | | | | | If the i2c driver returns an error status, error out immediately. Continuing the loop just results in printing error messages again and again. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Simon Glass <sjg@chromium.org> Cc: Heiko Schocher <hs@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
* Merge branch 'master' of git://git.denx.de/u-boot-fdtTom Rini2015-02-18-8/+8
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| * cmd_fdt: Print the control fdt in terms of virtual memoryJoe Hershberger2015-02-17-1/+1
| | | | | | | | | | | | | | | | | | | | | | If you want to inspect the control device tree using the fdt command, the "fdt address -c" command previously unhelpfully printed the phys memory address of the device tree. That address could not then be used to set the fdt address for inspection. Changed the resulting print to one that can be copied directly to the 'fdt address <addr>' command. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Simon Glass <sjg@chromium.org>
| * cmd_fdt: Actually fix fdt command in sandboxJoe Hershberger2015-02-17-7/+7
| | | | | | | | | | | | | | | | | | | | | | Commit 90bac29a76bc8d649b41a55f2786c0abef9bb2c1 claims to fix this bug that was introduced in commit a92fd6577ea17751ead9b50243e3c562125cf581 but doesn't actually make the change that the commit message describes. Actually fix the bug this time. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Simon Glass <sjg@chromium.org>
* | Merge branch 'master' of git://git.denx.de/u-boot-avr32Tom Rini2015-02-17-307/+294
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| * | atstk1002: enable generic boardAndreas Bießmann2015-02-17-0/+4
| | | | | | | | | | | | Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
| * | grasshopper: enable generic boardAndreas Bießmann2015-02-17-0/+4
| | | | | | | | | | | | Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
| * | avr32: add generic board supportAndreas Bießmann2015-02-17-6/+37
| | | | | | | | | | | | Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
| * | common/board_r: allocate bootparamsAndreas Bießmann2015-02-17-0/+15
| | | | | | | | | | | | | | | Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
| * | common/board_f: factor out reserve_stacksAndreas Bießmann2015-02-17-35/+102
| | | | | | | | | | | | | | | | | | | | | | | | Introduce arch_reserve_stacks() to tailor gd->start_addr_sp and gd->irq_sp to the architecture needs. Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
| * | avr32: use generic gd->start_addr_spAndreas Bießmann2015-02-17-5/+4
| | | | | | | | | | | | | | | | | | | | | | | | Before avr32 had an extra storage for stack end to have a nice stack printout on exception. Remove this extra storage and use generic gd->start_addr_sp instead. Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
| * | avr32: convert to dram_init()Andreas Bießmann2015-02-17-136/+46
| | | | | | | | | | | | | | | Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
| * | avr32: rename mmu.h definitionsAndreas Bießmann2015-02-17-55/+55
| | | | | | | | | | | | | | | | | | | | | Prefix mmu.h PAGE_xxx definitions with MMU_ in order to prevent a naming conflict with other definitions. Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
| * | avr32: factor out cpu_mmc_init()Andreas Bießmann2015-02-17-8/+17
| | | | | | | | | | | | | | | | | | | | | | | | cpu_mmc_init() is required by the init sequence to have a working MMC interface on avr32. This will not be included in the binary if we omit the avr32 board.c when building the generic board. Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
| * | avr32: rename cpu_init() -> arch_cpu_init()Andreas Bießmann2015-02-17-2/+4
| | | | | | | | | | | | | | | Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
| * | avr32: use dlmalloc for DMA buffersAndreas Bießmann2015-02-17-60/+6
| |/ | | | | | | Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
* | Prepare v2015.04-rc2Tom Rini2015-02-17-1/+1
| | | | | | | | Signed-off-by: Tom Rini <trini@ti.com>
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