Required to have working ethernet on Lime2 rev. K
Other boards require other GMAC TX delay, but the previous commit(s)
forward porting the Olimex network patch have delays hardcoded for other
revisions of the Lime2, so this should not break anything.
causing inrush currents which as a result, shut down the AXP209. This
has been reported before, without knowing the actual cause.
A fix appeared to be done with commit 0e6e34ac8d ("sunxi: Olimex A20
boards: Enable LDO3 and LDO4 regulators").
The description there is a bit misleading, the kernel does not hang
during AXP209 initialization, the PMIC shuts down, causing voltages to
drop and thus the whole system to freeze.
While the AXP209 does have the ability to ramp up the voltage slowly, to
reduce these inrush currents, the voltage rate control (VRC) however is
not applicable when switching on the LDO3 output. Only when going from
an enabled lower voltage setting, to a higher voltage setting is the VRC
in effect.
To work around this problem, we set LDO3 to the lowest possible setting
of 0.7 V if it was not yet enabled, and then let the VRC (if enabled) do
its thing. It should be noted, that for some undocumented reason, there
is a short delay needed between setting the LDO3 voltage register and
enabling the power. One would expect that this delay ought to be just
after enabling the output power at 0.7 V, but this did not work.
This allows for the power to gradually rise to the desired voltage,
instead of spiking up quickly. Reason to have this can be to reduce the
inrush currents for example.
There are 3 slopes to choose from, the default, 'none' is a voltage rise
of 0.0167 V/uS, a 1.6 mV/uS and a 0.8 mV/uS voltage rise.
operation. We waste some time however, by writing back the exact same
value that was already set in the chip. Let us thus only configure the
chip if the data is different.
Unfortunately the test was not included in the original implementation.
Add one.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
Remove "environment" partition and do not read it when booting Android
from eMMC. We don't use this partition anymore, so this is just an
unintentional leftover.
Earlier we were reading dtb file from "environment" partition to feed it
further to kernel. Now we are using dtb from FIT image ("boot" partition
contains boot_fit.img image), which can be seen from this command:
bootm ${loadaddr}#${fdtfile}
where "#" character means we have FIT image in ${loadaddr} RAM address.
Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Acked-by: Praneeth Bajjuri <praneeth@ti.com>
This is required for the current Linux kernel to reboot. It should also
probably be fixed in Linux.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
The DM37 and OMAP35 SOM-LV SOM-LV products both support a NOR
flash part connected to CS2 in addition to the NAND part on CS0.
This patch setups the GPMC timings for the MT28 NOR Flash and
enables the CFI-Flash driver now that the CFI stuff is in Kconfig
Signed-off-by: Adam Ford <aford173@gmail.com>
Instead of keeping a custom environment, use a more generic approach
by switching to distro config.
Signed-off-by: Dirk Meul <dirk.meul@rwth-aachen.de>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Compiling the overlay unit test fails with odroid-c2_defconfig showing
errors like:
test/overlay/cmd_ut_overlay.c:29:8:
error: unknown type name ‘fdt32_t’
Add the missing include.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Currently in pmecc_get_sigma(), the code tries to clear the memory
pointed by smu with wrong size 'sizeof(int16_t) * ARRAY_SIZE(smu)'.
Since smu is actually a pointer, not an array, so ARRAY_SIZE(smu)
does not generate correct size to be cleared.
In fact, GCC 8.1.0 reports a warning against it:
error: division 'sizeof (int16_t * {aka short int *}) / sizeof (int16_t
{aka short int})' does not compute the number of array elements
[-Werror=sizeof-pointer-div]
Fix it by using the correct size.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
When booting and CPU is detected from cpuid, we also need an environment
variable that will be used in boot commands to load the proper devicetree.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
In my haste to migrate SPL to DM, I copied the wrong name.
While it really doesn't matter, I'd prefer the name to match
the board, so am335x_mmc0 is now called omap3_logic_mmc0
Signed-off-by: Adam Ford <aford173@gmail.com>
With the new omap_serial driver, this patch uses this instead
from the former ns16550_serial driver. Even though the
omap_serial driver is essentially the same.
Signed-off-by: Adam Ford <aford173@gmail.com>
With the DM_USB working for USB host features, encapsulate the
USB gadget initialization in a precomiler check. If DM is enabled,
we don't need to manually initialize the MUSB driver.
Signed-off-by: Adam Ford <aford173@gmail.com>
The default timings are assumming an OMAP36 / AM37 / DM37, but
the OMAP35 controller is a bit slower, so DDR may operate out of
spec when under stress. This patch checks the processor type and
sets the DDR timings according to processor type.
Fixes: 5ad4212ce0 ("ARM: DTS: Add Logic PD OMAP35/DM37 SOM-LV
and OMAP35 Torpedo")
Signed-off-by: Adam Ford <aford173@gmail.com>
The da850evm does not need this enabled, so this removes a
notice that appears during compile time that says
"Please remove"
Signed-off-by: Adam Ford <aford173@gmail.com>
Add qemu-x86_64 to the list of targets we use for test.py runs.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Specify X86_TSC_TIMER_EARLY_FREQ for Quark SoC so that TSC as
the early timer can be supported.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
So far the TSC timer driver supports trying hardware calibration first
and using device tree as last resort for its running frequency as the
normal timer.
However when it is used as the early timer, it only supports hardware
calibration and if it fails, the driver just panics. This introduces
a new config option to specify the early timer frequency in MHz and
it should be equal to the value described in the device tree.
Without this patch, the travis-ci testing on QEMU x86_64 target fails
each time after it finishes the 'bootefi selftest' as the test.py see
an error was emitted on the console like this:
TSC frequency is ZERO
resetting ...
### ERROR ### Please RESET the board ###
It's strange that this error is consistently seen on the travis-ci
machine, but only occasionally seen on my local machine (maybe 1 out
of 10). Since QEMU x86_64 target enables BOOTSTAGE support which uses
early timer, with this fix it should work without any failure.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
At present in arch_setup_gd() it calls printch(' ') at the end which
has been a mystery for a long time as without such call the 64-bit
U-Boot just does not boot at all.
In fact this is due to the bug that board_init_f() was called with
boot_flags not being set. Hence whatever value being there in the
rdi register becomes the boot_flags if without such magic call.
With a printch(' ') call the rdi register is initialized as 0x20
and this value seems to be sane enough for the whole boot process.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
On x86_64 the field global_data_ptr is assigned before relocation. As
sections for uninitialized global data (.bss) overlap with the relocation
sections (.rela) this destroys the relocation table and leads to spurious
errors.
Initialization forces the global_data_ptr into a section for initialized
global data (.data) which cannot overlap any .rela section.
Fixes: a160092a61 ("x86: Support global_data on x86_64")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Currently we support only relocations of type ELF64_R_TYPE or ELF32_R_TYPE.
We should be warned if other relocation types appear in the relocation
sections.
This type of message has helped to identify code overwriting a relocation
section before relocation and incorrect parsing of relocation tables.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Since commit 380d4f787a ("rtc: Allow use of RTC in SPL and TPL")
qemu-x86_64_defconfig does not boot anymore.
Fixes: 380d4f787a ("rtc: Allow use of RTC in SPL and TPL")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
There are some sections in current doc saying 64-bit is unsupported.
This apparently is out of date. Remove it.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Currently only 32-bit U-Boot for QEMU x86 is documented. Mention
the 64-bit support.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
With the '-march=core2' fix, it seems that we have some luck that
the 64-bit U-Boot boots again. However if we examine the disassembly
codes there are still SSE instructions elsewhere which means passing
cpu type to GCC is not enough to prevent it from generating these
instructions. A simple test case is doing a 'bootefi selftest' from
the U-Boot shell and it leads to a reset too.
The 'bootefi selftest' reset is even seen with the image created by
the relative older GCC 5.4.0, the one shipped by Ubuntu 16.04.
The reset actually originates from undefined instruction exception
caused by these SSE instructions. To keep U-Boot as a bootloader as
simple as possible, we don't want to handle such advanced SIMD stuff.
To make sure no MMX/SSE instruction sets are generated, tell GCC not
to do this. Note AVX is out of the question as CORE2 is old enough
to support AVX yet.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
With newer kernel.org GCC (7.3.0 or 8.1.0), the u-boot.rom image
built for qemu-x86_64 target does not boot. It keeps resetting
soon after the 32-bit SPL jumps to 64-bit proper. Debugging shows
that the reset happens inside env_callback_init().
000000000113dd85 <env_callback_init>:
113dd85: 41 54 push %r12
113dd87: 55 push %rbp
113dd88: 31 c0 xor %eax,%eax
113dd8a: 53 push %rbx
113dd8b: 0f 57 c0 xorps %xmm0,%xmm0
Executing "xorps %xmm0,%xmm0" causes CPU to immediately reset.
However older GCC like 5.4.0 (the one shipped by Ubuntu 16.04)
does not generate such instructions that utilizes SSE for this
function - env_callback_init() and U-Boot boots without any issue.
Explicitly specifying -march=core2 for newer GCC allows U-Boot
proper to boot again. Examine assembly codes of env_callback_init
and there is no SSE instruction in that function hence U-Boot
continues to boot.
core2 seems to be the oldest arch in GCC that supports 64-bit.
Like 32-bit U-Boot build we use -march=i386 which is the most
conservative cpu type so that the image can run on any x86
processor, let's do the same for the 64-bit U-Boot build.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Once we get a zero pointer from load_zimage(...) we must bunch out
instead of continue boot.
Signed-off-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
In initr_bootstage() we call bootstage_mark_name() which ends up calling
timer_get_us(). This call happens before initr_dm(), which inits driver
model.
On x86 we set gd->timer to NULL in the transition from board_init_f()
to board_init_r(). See board_init_f_r() for this assignment. So U-Boot
knows there is no timer available in the period immediately after
relocation.
On x86 the timer_get_us() call is implemented as calls to get_ticks() and
get_tbclk(). Both of these call dm_timer_init() to set up the timer, if
gd->timer is NULL and the early timer is not available.
However dm_timer_init() cannot succeed before initr_dm() is called.
So it seems that on x86 if we want to use CONFIG_BOOTSTAGE we must enable
CONFIG_TIMER_EARLY. Update the Kconfig to handle this.
Note: On most architectures we can rely on the pre-relocation memory still
being available, so that gd->timer pointers to a valid timer device and
everything works correctly. Admittedly this is not strictly correct since
the timer device is set up by pre-relocation U-Boot, but normally this is
fine. On x86 the 'CAR' (cache-as-RAM) memory used by pre-relocation U-Boot
disappears in board_init_f_r() and any attempt to access it will hang.
This is the reason why we must mark the timer as invalid when we get to
board_init_f_r().
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Some platforms use this instead of FSP to set up the platform, including
memory. Add support for this in binman. This is needed for
chromebook_samus, for example.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
With bootstage now allocating pre-relocation memory the current amount
available is insufficient. Increase it a little.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Merlijn Wajer
S.J.R. van Schaik
Simon Glass
Tom Rini
Sam Protsenko
Cédric Le Goater
Adam Ford
Meul, Dirk
Heinrich Schuchardt
Bin Meng
Eugen Hristev
Hannes Schmelzer