At present SPL uses a single stack, either CONFIG_SPL_STACK or
CONFIG_SYS_INIT_SP_ADDR. Since some SPL features (such as MMC and
environment) require a lot of stack, some boards set CONFIG_SPL_STACK to
point into SDRAM. They then set up SDRAM very early, before board_init_f(),
so that the larger stack can be used.
This is an abuse of lowlevel_init(). That function should only be used for
essential start-up code which cannot be delayed. An example of a valid use is
when only part of the SPL code is visible/executable, and the SoC must be set
up so that board_init_f() can be reached. It should not be used for SDRAM
init, console init, etc.
Add a CONFIG_SPL_STACK_R option, which allows the stack to be moved to a new
address before board_init_r() is called in SPL.
The expected SPL flow (for CONFIG_SPL_FRAMEWORK) is documented in the README.
Signed-off-by: Simon Glass <sjg@chromium.org>
For version 1:
Acked-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
Reviewed-by: Stefan Roese <sr@denx.de>
Tested-by: Bo Shen <voice.shen@atmel.com>
Acked-by: Bo Shen <voice.shen@atmel.com>
Acked-by: Heiko Schocher <hs@denx.de>
Tested-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Tom Rini <trini@konsulko.com>
Some boards have a special way of loading U-Boot that does not fit with
the existing SPL code. For example sunxi uses an 'FEL' mode where U-Boot
is loaded over USB. Add a CONFIG option and boot mode for this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Microblaze currently doesn't use printf in SPL. So this one line was the only
reference to it and resulted in the printf functionality to be pulled in.
Exceeding the 4k size limit. Lets change the printf back to puts so that
Microblaze is fixed again. The only drawback is that the detected boot-device
number will not be printed. But this message alone should be helpful enough
to get an idea where the boot process is broken.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Tom Rini <trini@ti.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
We had the problem on an AM33xx platform, that SPL detected an
unsupported boot-device. But since this message is a debug message
it took a bit of time to really know, where the hangup in SPL
resulted from. So let's change this debug message to a printf
and also print the detected boot-device that is not supported.
This makes debugging of such cases much easier.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Tom Rini <trini@ti.com>
Acked-by: Heiko Schocher <hs@denx.de>
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>
enable to boot only a raw u-boot.bin image from nand with the
CONFIG_SPL_NAND_RAW_ONLY define. This option saves space on
boards where spl space is low.
Signed-off-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Andreas Bießmann <andreas.devel@googlemail.com>
Reviewed-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
The parameters of size_t type shall be formatted using "%zu" and not
using "%d".
Precision argument for the "%.*s" parameters shall be of int type.
Signed-off-by: Vasili Galka <vvv444@gmail.com>
Add SPL support to be able to detect a USB Mass Storage device
connected to a USB host. Once a USB Mass storage device is detected
the SPL will load the u-boot.img from a FAT partition to target address.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
If image name is longer than 32 bytes, then it will be truncated.
This will remove '\0' at the end of the line, so printf will
go out of string limit.
Signed-off-by: Taras Kondratiuk <taras@ti.com>
Reviewed-by: Tom Rini <trini@ti.com>
The boot parameters are read from individual variables
assigned for each of them. This been corrected and now
they are stored as a part of the global data 'gd'
structure. So read them from 'gd' instead.
Signed-off-by: Sricharan R <r.sricharan@ti.com>
[trini: Add igep0033 hunk]
Signed-off-by: Tom Rini <trini@ti.com>
Delete all occurrences of hang() and provide a generic function.
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Acked-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
[trini: Modify check around puts() in hang.c slightly]
Signed-off-by: Tom Rini <trini@ti.com>
This patch will allow use SPL to boot an u-boot from the OneNAND.
Tested with IGEPv2 board with a OneNAND from Numonyx
Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com>
[trini: Add <spl.h> hunk to fix warning]
Signed-off-by: Tom Rini <trini@ti.com>
In case of usbeth booting just call net_load_image("usb_ether").
This patch also adds CONFIG_SPL_USBETH_SUPPORT and
CONFIG_SPL_MUSB_NEW_SUPPORT config options to enable linking of SPL
against USB gagdet support and new MUSB driver resp.
Signed-off-by: Ilya Yanok <ilya.yanok@cogentembedded.com>
This patch enables the SPL framework to be used on powerpc platforms
and not only ARM.
timer_init() does not exist on PPC systems. The timer (decrementer) is
initialized and enabled in interrupt_init() here. And currently
interrupt_init() is called after relocation to SDRAM. Since the only
powerpc SPL implementation (a3m071) doesn't need a timer, let's remove
this timer_init() call for PPC systems.
Signed-off-by: Stefan Roese <sr@denx.de>
Change jump_to_image_no_args() to a weak symbol to allow override by
SoC specific code. This is required by tegra because the SPL runs on
a different CPU from the image it is loading, so tegra specific
initialization is required to start the host CPU. Pass in spl_image
as a parameter for the same reason.
Signed-off-by: Allen Martin <amartin@nvidia.com>
Acked-by: Tom Rini <trini@ti.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
We have not strictly speaking relocated at this point, do not claim that
we have. This is not required for output.
Signed-off-by: Tom Rini <trini@ti.com>
This patch adds support for networking in SPL. Some devices are
capable of loading SPL via network so it makes sense to load the
main U-Boot binary via network too. This patch tries to use
existing network code as much as possible. Unfortunately, it depends
on environment which in turn depends on other code so SPL size
is increased significantly. No effort was done to decouple network
code and environment so far.
Signed-off-by: Ilya Yanok <ilya.yanok@cogentembedded.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Tom Rini <trini@ti.com>
First, remove the puts from the case where we don't have an mkimage
header as this is somewhat common and intentional for no-arg target
images. Second, rework the final switch statement in board_init_r to,
in the case of !CONFIG_SPL_OS_BOOT be only about doing debug prints
about if we know what the magic is or not (the CONFIG_SPL_OS_BOOT case
is unchanged). Then we call jump_to_image_no_args(). This gives us the
same behavior as before but with slightly smaller code.
Signed-off-by: Tom Rini <trini@ti.com>
By setting CONFIG_SYS_UBOOT_START boards can now use a different entry
point for their U-Boot image. So the U-Boot entry point is not fixed
to CONFIG_SYS_TEXT_BASE any more.
Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Tom Rini <trini@ti.com>
On some system (e.g. powerpc), the load-address and entry-point is
located at address 0. So the current approach to load the image
(payload) including the header to the address "load-address - 64"
can't work here.
This patch adds an flag to skip this copying including header to
the SPL framework. By setting SPL_COPY_PAYLOAD_ONLY, only the
playload will be copied. This will be used by the SPL NOR flash
driver on powerpc.
Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Tom Rini <trini@ti.com>
SPL NOR flash booting support is quite simple. Only copying of the
images is needed.
On MPC5xxx we need to make sure to only use the standard memcpy()
implementation and not the MPC5xxx specific one. As the MPC5xxx
version has some complexity which is not needed for this SPL
booting.
Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Tom Rini <trini@ti.com>
If an u-boot image is not found, SPL thinks to load a bare
u-boot.bin image with a maximum size of 200KB.
Use CONFIG_SYS_MONITOR_LEN instead.
Signed-off-by: Stefan Roese <stefan.roese@gmail.com>
Signed-off-by: Stefano Babic <sbabic@denx.de>
Signed-off-by: Tom Rini <trini@ti.com>
In SPL (CONFIG_SPL_FRAMEWORK) board_init_f must setup the stack pointer,
clear the BSS and call board_init_r. We mark this as weak as some
platforms may need to perform additional initalization at this point.
We provide a gd that we know will be in a usable location, once the BSS
has been cleared to help with this as well. Finally, we no longer call
relocate_code so remove that from the armv7 version.
Next, both board_init_f and jump_to_image_linux are going to be
inherently arch-specific, so move these versions to arch/arm/lib/spl.c
Signed-off-by: Tom Rini <trini@ti.com>
Add a new flag, CONFIG_SPL_FRAMEWORK to opt into the common/spl SPL
framework, enable on all of the previously using boards. We move the
spl_ymodem.c portion to common/ and spl_mmc.c to drivers/mmc/. We leave
the NAND one in-place as we plan to replace it later in this series.
We use common/spl to avoid linker problems with respect to merging
constant strings in objects. Otherwise all strings in common/ will be
linked in and kept which grows SPL in size too much.
Signed-off-by: Tom Rini <trini@ti.com>
- Remove includes we don't need
- Switch some printf statements to puts
- Convert some printf statements to debug, introduce new puts statements
- In most cases saying just "No mkimage signature, assuming
u-boot.bin" or similar is sufficient. This also means the non-DEBUG
case doesn't need printf, in the core of SPL.
- The other case here is that PLAIN_VERSION provided what we wanted
already, so just use it.
Signed-off-by: Tom Rini <trini@ti.com>
Move the SPL prototypes from <asm/omap_common.h> into <asm/spl.h> and
add <asm/arch/spl.h> for arch specific portions of CONFIG_SPL_FRAMEWORK.
Signed-off-by: Tom Rini <trini@ti.com>
We can only attempt to setup a malloc pool if
CONFIG_SYS_SPL_MALLOC_START is defined, and not all boards require it.
Make the call depend on the define.
Signed-off-by: Tom Rini <trini@ti.com>
Only omap4/5 currently have a meaningful set of display text and overo
had been adding a function to display nothing. Change how this works to
be opt-in and only turned on for omap4/5 now.
Signed-off-by: Tom Rini <trini@ti.com>
Signed-off-by: Stefano Babic <sbabic@denx.de>
CC: Tom Rini <tom.rini@gmail.com>
CC: Wolfgang Denk <wd@denx.de>
CC: Simon Schwarz <simonschwarzcor@gmail.com>
This only outputs "Assuming u-boot.bin..." if debug is active.
Signed-off-by: Simon Schwarz <simonschwarzcor@gmail.com>
CC: Tom Rini <tom.rini@gmail.com>
CC: Stefano Babic <sbabic@denx.de>
CC: Wolfgang Denk <wd@denx.de>
This adds Linux booting to the SPL
This depends on CONFIG_MACH_TYPE patch by Igor Grinberg
(http://article.gmane.org/gmane.comp.boot-loaders.u-boot/105809)
Related CONFIGs:
CONFIG_SPL_OS_BOOT
Activates/Deactivates the OS booting feature
CONFIG_SPL_OS_BOOT_KEY
defines the IO-pin number u-boot switch - if pressed u-boot is
booted
CONFIG_SYS_NAND_SPL_KERNEL_OFFS
Offset in NAND of direct boot kernel image to use in SPL
CONFIG_SYS_SPL_ARGS_ADDR
Address where the kernel boot arguments are expected - this is
normaly RAM-begin + 0x100
Signed-off-by: Simon Schwarz <simonschwarzcor@gmail.com>
CC: Tom Rini <tom.rini@gmail.com>
CC: Stefano Babic <sbabic@denx.de>
CC: Wolfgang Denk <wd@denx.de>
Adds support for loading U-Boot from UART using YMODEM protocol.
If YMODEM support is enabled in SPL and the romcode indicates
that SPL loaded via UART then SPL will wait for start of a
YMODEM transfer via the console port.
Signed-off-by: Matt Porter <mporter@ti.com>
Signed-off-by: Tom Rini <trini@ti.com>
Fix:
spl.c: In function 'jump_to_image_no_args':
spl.c:103: warning: assignment makes pointer from integer without a cast
spl.c:105: warning: dereferencing type-punned pointer will break
strict-aliasing rules
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: sricharan <r.sricharan@ti.com>
Cc: Tom Rini <trini@ti.com>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Acked-by: Tom Rini <trini@ti.com>
Add an SPL_BOARD_INIT hook and for OMAP3 have it turn on i2c. OMAP4
doesn't need i2c enabled in SPL. Enable SPL_BOARD_INIT on devkit8000.
Cc: Frederik Kriewitz <frederik@kriewitz.eu>
Signed-off-by: Tom Rini <trini@ti.com>
Simon Glass
Stefan Roese
Heiko Schocher
Andreas Bießmann
Vasili Galka
Dan Murphy
Taras Kondratiuk
Wolfgang Denk
SRICHARAN R
Enric Balletbo i Serra
Ilya Yanok
Allen Martin
Tom Rini
Pavel Machek
Stefano Babic
Balaji T K
Simon Schwarz
Matt Porter
Andreas Müller
Anatolij Gustschin
Aneesh V