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* arm: rmobile: alt: Migrate serial driver to drivers modelNobuhiro Iwamatsu2015-02-25-3/+16
| | | | | | | | This adds drivers model support of serial port to Alt board, and migrate serial port to drivers model. Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
* arm: rmobile: lager: Migrate serial driver to drivers modelNobuhiro Iwamatsu2015-02-25-3/+16
| | | | | | | | This adds drivers model support of serial port to Lager board, and migrate serial port to drivers model. Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
* arm: rmobile: gose: Migrate serial driver to drivers modelNobuhiro Iwamatsu2015-02-25-3/+16
| | | | | | | | This adds drivers model support of serial port to Gose board, and migrate serial port to drivers model. Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
* arm: rmobile: koelsch: Migrate serial driver to drivers modelNobuhiro Iwamatsu2015-02-25-3/+18
| | | | | | | | This adds drivers model support of serial port to Koelsch board, and migrate serial port to drivers model. Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
* OMAP3: igep0032: Fix regression due commit f3b4bc45.Enric Balletbo i Serra2015-02-24-3/+6
| | | | | | | | | | | | | | | | | | | | Commit referenced in subject breaks IGEP0032 build with the following error: drivers/misc/status_led.c:30:7: error: 'RED_LED_GPIO' undeclared here (not in a function) scripts/Makefile.build:275: recipe for target 'drivers/misc/status_led.o' failed make[2]: *** [drivers/misc/status_led.o] Error 1 scripts/Makefile.build:420: recipe for target 'drivers/misc' failed make[1]: *** [drivers/misc] Error 2 Makefile:1093: recipe for target 'drivers' failed make: *** [drivers] Error 2 Fix this by skipping the status led on IGEP0032 machine as is not available and throw an error for future machines if the status led is not configured to avoid build breakage. Reported-by: Albert ARIBAUD <albert.u.boot@aribaud.net> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
* Merge branch 'master' of git://git.denx.de/u-boot-mmcTom Rini2015-02-23-36/+114
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| * mmc: sdhci: fix bus width switching on Samsung SoCsMatt Reimer2015-02-23-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | Fix bus width switching from 8-bit mode down to 4-bit or 1-bit modes on Samsung SoCs using SDHCI_QUIRK_USE_WIDE8. These SoCs report controller version 2.0 yet they support 8-bit bus widths. If 8-bit mode was previously enabled and then an operation like "mmc dev" caused a switch back down to 4-bit or 1-bit mode, WIDE8 was left set, causing failures. This problem was manifested by "mmc dev" timing out. Signed-off-by: Matt Reimer <mreimer@sdgsystems.com>
| * mmc: print SD/eMMC type for inited mmc devicesPrzemyslaw Marczak2015-02-23-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | Depending on the boot priority, the eMMC/SD cards, can be initialized with the same numbers for each boot. To be sure which mmc device is SD and which is eMMC, this info is printed by 'mmc list' command, when the init is done. Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Pantelis Antoniou <panto@antoniou-consulting.com>
| * mmc: exynos dwmmc: check boot mode before init dwmmcPrzemyslaw Marczak2015-02-23-1/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Before this commit, the mmc devices were always registered in the same order. So dwmmc channel 0 was registered as mmc 0, channel 1 as mmc 1, etc. In case of possibility to boot from more then one device, the CONFIG_SYS_MMC_ENV_DEV should always point to right mmc device. This can be achieved by init boot device as first, so it will be always registered as mmc 0. Thanks to this, the 'saveenv' command will work fine for all mmc boot devices. Exynos based boards usually uses mmc host channels configuration: - 0, or 0+1 for 8 bit - as a default boot device (usually eMMC) - 2 for 4bit - as an optional boot device (usually SD card slot) And usually the boot order is defined by OM pin configuration, which can be changed in a few ways, eg. - Odroid U3 - eMMC card insertion -> first boot from eMMC - Odroid X2/XU3 - boot priority jumper By this commit, Exynos dwmmc driver will check the OM pin configuration, and then try to init the boot device and register it as mmc 0. Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Minkyu Kang <mk7.kang@samsung.com> Cc: Jaehoon Chung <jh80.chung@samsung.com> Cc: Pantelis Antoniou <panto@antoniou-consulting.com> Cc: Simon Glass <sjg@chromium.org> Cc: Akshay Saraswat <akshay.s@samsung.com>
| * sunxi: mmc: Always declare High Capacity capabilityHans de Goede2015-02-23-5/+1
| | | | | | | | | | | | | | | | | | High Capacity (e)MMC cards work fine on sun4i / sun5i, and not having this capability set causes u-boot to not recognize the eMMC on an Utoo P66 A13 tablet, so always set it thereby fixing this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
| * mmc: exynos_dw_mmc: use the exynos specific data structureJaehoon Chung2015-02-23-14/+48
| | | | | | | | | | | | | | | | Clksel value is exynos specific value. It removed "clksel_val" into dwmci_host and created the "dwmci_exynos_priv_data" structure for exynos specific data. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
| * mmc: exynos_dw_mmc: set to clksel_val into board-init functionJaehoon Chung2015-02-23-0/+4
| | | | | | | | | | | | | | | | | | "clksel_val" is assigned to property of mmc or defined value. But it doesn't write at initial sequence. There is a reason that get the wrong source-clock value. This patch fixed it. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
| * mmc: dw_mmc: fixed the wrong bit controlJaehoon Chung2015-02-23-1/+1
| | | | | | | | | | | | If mode is not DDR-mode, then it needs to clear it. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
| * 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>
* | Merge git://git.denx.de/u-boot-sunxiTom Rini2015-02-21-12/+192
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| * sunxi: Machine id hack to prevent loading buggy sunxi-3.4 kernelsSiarhei Siamashka2015-02-21-6/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Right now U-Boot supports the CONFIG_OLD_SUNXI_KERNEL_COMPAT option, which makes it go out of its way in limiting the selection of PLL clock frequencies and PMIC voltages in order not to upset outdated buggy sunxi-3.4 kernel releases. And if the CONFIG_OLD_SUNXI_KERNEL_COMPAT option is not set, then booting such old kernels exhibits various failures at runtime. This is very user unfriendly, and there were already several incidents when people wasted their time being hit by these runtime failures and trying to debug them. The right solution is not to add hacks and workarounds to the mainline U-Boot, but to fix these bugs in the sunxi-3.4 kernel. And in fact, the updated sunxi-3.4 kernels already exist. Still we need to follow the 'Principle of Least Surprise' and U-Boot needs to ensure that the old buggy kernels are not getting happily booted when the CONFIG_OLD_SUNXI_KERNEL_COMPAT option is not set. And this patch addresses this particular issue. This patch makes U-Boot store the 'compatibility revision' number in the top 4 bits of the machine id and pass it to the kernel. The old buggy kernels will fail to load with a very much googlable error message on the serial console (the "r1 = 0x100010bb" part of it): "Error: unrecognized/unsupported machine ID (r1 = 0x100010bb)" This error message can be documented in the linux-sunxi wiki with proper explanations about how to resolve this situation and where to get the necessary bugfixes for the sunxi-3.4 kernel. The fixed sunxi-3.4 kernels implement a revision compatibility check and clear the top 4 bits of the machine id if everything is alright. By accepting the machine id with the bits 31:28 set to 1, the sunxi-3.4 kernel effectively certifies that it has the PLL5 clock speed and AXP209 DCDC3 voltage fixes applied. It is still possible to set the CONFIG_OLD_SUNXI_KERNEL_COMPAT option in U-Boot if the user desires to use an outdated unpatched sunxi-3.4 kernel. Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com> Acked-by: Ian Campbell <ijc@hellion.org.uk> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
| * sunxi: Set the /chosen/stdout-path fdt property for sunxi boardsHans de Goede2015-02-21-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While discussing with some people how to get the Linux kernel to do the right thing wrt sending output to both the serial console and the hdmi out / lcd screen when booting on ARM devices, Grant Likely pointed out that there already is a solution for this. All we need to do is set the /chosen/stdout-path fdt property, and if no console= arguments were specified on the kernel commandline the kernel will honor this and add this device as a console (next to the primary video output on hdmi). And u-boot already has support for setting this, all we need to do is define OF_STDOUT_PATH and then everything will just work ootb, without people needing to meddle with adding console= arguments in extlinux.conf . Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk> Reviewed-by: Tom Rini <trini@ti.com>
| * sunxi: Fix sun5i mbus speed when booting old kernelsHans de Goede2015-02-21-0/+9
| | | | | | | | | | | | | | | | | | Older linux-sunxi-3.4 kernels override our PLL6 setting with 300 MHz, halving the mbus frequency, so set it to 300 MHz ourselves and base the mbus divider on that. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
| * sunxi: musb: Check Vbus-det before enabling otg port powerHans de Goede2015-02-21-0/+42
| | | | | | | | | | | | | | | | | | | | | | | | Sending out 5V when there is a charger connected to the otg port is not a good idea, so check for this and error out. Note this commit currently breaks otg support on the q8h tablets, as we need to do some magic with the pmic there to get vbus info, this is deliberate (better safe then sorry), fixing this is on my TODO list. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
| * sunxi: Add support for the UTOO P66 tabletHans de Goede2015-02-21-0/+21
| | | | | | | | | | | | | | | | The UTOO P66 is a 6" A13 tablet / lcd ereader. It features a 6" 480x800 ips lcd screen, 512MB RAM & 4GB emmc. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
| * sunxi: mmc: Always declare High Capacity capabilityHans de Goede2015-02-21-5/+1
| | | | | | | | | | | | | | | | | | High Capacity (e)MMC cards work fine on sun4i / sun5i, and not having this capability set causes u-boot to not recognize the eMMC on an Utoo P66 A13 tablet, so always set it thereby fixing this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
| * sunxi: video: Add support for tl059wv5c0 lcd panelsHans de Goede2015-02-20-0/+15
| | | | | | | | | | | | | | | | Add support for the 6" 480x800 tl059wv5c0 panel used on e.g. Utoo P66 and Aigo M60/M608/M606 tablets. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
| * sunxi: video: Add support for LCD panels which need to be configured via i2cHans de Goede2015-02-20-0/+50
| | | | | | | | | | | | | | | | This commits adds support for configuring a a bitbang i2c controller, which is used on some boards to configure the LCD panel (via i2c). Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
| * sunxi: video: Add support for LCD reset pinHans de Goede2015-02-20-1/+18
| | | | | | | | | | | | | | On some boards there is a gpio to reset the LCD panel, add support for this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* | 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>
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