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2021-01-22ARM: at91: spl: add spl_early_init for sama5d2 platformsGreg Gallagher1-0/+7
The dm root node is needed early in the spl to allow the timer to be used. This change calls spl_early_init to initialize the dm root node. Signed-off-by: Greg Gallagher <greg@embeddedgreg.com>
2020-05-19common: Drop log.h from common headerSimon Glass1-0/+1
Move this header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-19common: Drop init.h from common headerSimon Glass1-0/+1
Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-01-18common: Move hang() to the same header as panic()Simon Glass1-0/+1
At present panic() is in the vsprintf.h header file. That does not seem like an obvious choice for hang(), even though it relates to panic(). So let's put hang() in its own header. Signed-off-by: Simon Glass <sjg@chromium.org> [trini: Migrate a few more files] Signed-off-by: Tom Rini <trini@konsulko.com>
2019-06-06spl: at91: add support for SPL_AT91_MCK_BYPASSEugen Hristev1-0/+8
By default the configuration of the PMC is to have an external crystal connected that requires driving on both XIN and XOUT pins. The bypass configuration means that only XIN will be used, the SoC will not do any driving, and the XIN needs to be provided with a proper signal. This is the MOSCXTBY bit in the PMC main clock generator register. The SPL needs to properly initialize the PMC registers before switching to external clock signal and raising the clock to the cruise speed. Also created Kconfig for this specific configuration. By default this is disabled. Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
2018-11-16arm: at91: wdt: Convert watchdog driver to dm/dtPrasanthi Chellakumar1-1/+1
Convert the Watchdog driver for AT91SAM9x processors to support the driver model and device tree. Changes "CONFIG_AT91SAM9_WATCHDOG" to new "CONFIG_WDT_AT91" Kconfig option. Signed-off-by: Prasanthi Chellakumar <prasanthi.chellakumar@microchip.com>
2018-05-23at91: Minor tweaks to SPL logic for space savings on smartwebTom Rini1-0/+2
- spl_board_init is empty on smartweb so drop that function - When CONFIG_AT91SAM9_WATCHDOG is set we do not disable the watchdog in SPL and instead let full U-Boot handle it. Instead of an empty function just do not call a function. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini1-2/+1
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-04-27Remove unnecessary instances of DECLARE_GLOBAL_DATA_PTRTom Rini1-2/+0
We have a large number of places where while we historically referenced gd in the code we no longer do, as well as cases where the code added that line "just in case" during development and never dropped it. Signed-off-by: Tom Rini <trini@konsulko.com>
2017-09-14ARM: at91: spl: Adjust switching to oscillator for SAMA5D2Wenyou Yang1-1/+17
As said in 29.5.7 section of SAMA5D2 datasheet, before switching to the crystal oscillator, a check must be carried out to ensure that the oscillator is present and that its freqency is valid. Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-04-13ARM: spl: atmel: move mem_init() advance in SPL init.Wenyou Yang1-1/+2
Because the MMC SPL puts the bbs section in the ddr memory, move calling mem_init() before calling spl_init(). Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
2017-04-13ARM: spl: atmel: bring in serial device before initWenyou Yang1-0/+8
Before setting up the serial communications, bring in the serial device from the device tree file. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
2016-02-18ARM: at91: sama5d2: configure the L2 cache memorySamuel Mescoff1-0/+4
The SAMA5D2 has a second internal SRAM that can be reassigned as a L2 cache memory. Make sure it is configured as a L2 cache memory when booting from a SPL image. Based on the commit b5ea95ef2b5b from the at91bootstrap repository. Signed-off-by: Samuel Mescoff <samuel.mescoff@mobile-devices.fr> Reviewed-by: Wenyou Yang <wenyou.yang@atmel.com> Reviewed-by: Andreas Bießmann <andreas.devel@googlemail.com>
2015-11-02at91: simplify spl board_init_f functionJosh Wu1-5/+0
crt0.S do both memset the bss section and call board_init_r for us, so remove them from board_init_f(). Signed-off-by: Josh Wu <josh.wu@atmel.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Andreas Bießmann <andreas.devel@googlemail.com>
2015-04-01spl_atmel.c: Switch s_init to board_init_fTom Rini1-0/+10
To facilitate changing lowlevel_init to become s_init, move the current contents of s_init into board_init_f and add the rest of what board_init_f does here. In order to compile clean without CONFIG_SKIP_LOWLEVEL_INIT set, leave an empty stub of s_init(). It can be removed when lowlevel_init becomes s_init. Cc: Bo Shen <voice.shen@atmel.com> Cc: Andreas Bießmann <andreas.devel@googlemail.com> Tested-by: Matt Porter <mporter@konsulko.com> on sama5d3_xplained Signed-off-by: Tom Rini <trini@ti.com> [rebased on current master, leave s_init() as empty stub] Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
2015-02-21ARM: at91: collect SoC sources into mach-at91Masahiro Yamada1-0/+96
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>