It's useful to have the reset status of the SoC printed out during reset
(e.g. to learn whether the reset was caused by software or a watchdog).
As a first step to implement this, add a get_status method to the
sysreset class, which enables the caller to get printable information
about the reset status (akin to get_desc in the CPU uclass).
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Sandbox is not a real bootloader and it does require
a position independent code to be supported.
Thus, build it with -fPIC explicitly.
Fixes: 16940f720f9b ("Makefile: Don't generate position independent code")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reported-by: Simon Glass <sjg@chromium.org>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
These comments were copied from the Linux kernel driver in
drivers/platform/x86/intel_scu_ipc.c
Signed-off-by: Georgii Staroselskii <georgii.staroselskii@emlid.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Now that we have I2C#6 working, it's time to add a corresponsing
ACPI binding.
Signed-off-by: Georgii Staroselskii <georgii.staroselskii@emlid.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Now that we have the pinctrl driver for Merrifield in place we can make
use of it and set I2C#6 pins appropriately.
Initial configuration came from the firmware. Which quite likely has
been used in the phones, where that is not part of Atom peripheral, is
in use. Thus we need to override the leftover.
Signed-off-by: Georgii Staroselskii <georgii.staroselskii@emlid.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This API is going to be used to configure some pins that are protected
for simple modification.
It's not a comprehensive pinctrl driver but can be turned into one
when we need this in the future. Now it is planned to be used only
in one place. So that's why I decided not to pollute the codebase with a
full-blown pinctrl-merrifield nobody will use.
This driver reads corresponding fields in DT and configures pins
accordingly.
The "protected" flag is used to distinguish configuration of SCU-owned
pins from the ordinary ones.
The code has been adapted from Linux work done by Andy Shevchenko
in pinctrl-merrfifield.c
Signed-off-by: Georgii Staroselskii <georgii.staroselskii@emlid.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: fix build warning]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
This interface will be used to configure properly some pins on
Merrifield that are shared with SCU.
scu_ipc_raw_command() writes SPTR and DPTR registers before sending
a command to SCU.
This code has been ported from Linux work done by Andy Shevchenko.
Signed-off-by: Georgii Staroselskii <georgii.staroselskii@emlid.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This will add support for a baud rate of 57600.
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
On a
u32 val = __sw32(*addr);
multiple memory accesses are not welcome, since "addr" may
be an IO peripheral register address.
This patch changes __sw16/32 to perform a single memory
access for the source value.
Signed-off-by: Angelo Dureghello <angelo@sysam.it>
The Gen2 TMU is fed with fixed 32.5 MHz signal from CP .
This is then divided by 4 in TMU. Fix the timer clock
setting in Gen2.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Replace those two functions with generic ones by defining the
timer macros in include/config/*.h .
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
The code uses all in all three TMU registers, drop the massive
register layout structures and just define the required timer
registers and use them throughout the code.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
The header contains only the TMU register layout, just inline it
into the TMU timer implementation and drop the header completely.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
The R-Car Gen2 feeds the TMU with CONFIG_SYS_CLK_FREQ / 2,
while the old SH parts use CONFIG_SYS_CLK_FREQ directly.
Just put this into the TMU implementation and drop the
CONFIG_SH_TMU_CLK_FREQ config option.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
These functions are always called for timer = 0, so drop the
timer check. Since these functions are called from one place
only and they are reduced to one line of code, just inline
them.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
The tmu_bit value evaluates to (ffs(4) >> 1) - 1 = (3 >> 1) - 1 = 0.
Just drop the tmu_bit completely as well as CONFIG_SYS_TMU_CLK_DIV.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
This constant is always 4 , for all boards that exist. Define it
once in arch/sh/lib/time.c and remove it from the configs.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Drop the macro as it is never used and it collides with sh_eth.h macros.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Drop the macro as it is defined in sh7723.h already.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Add vbus-supply regulator support.
On some board vbus is not controlled by the phy but by
an external regulator.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
The dtb should be embedded in the u-boot-spl image so that
the CONFIG_SPL_TARGET of spl/u-boot-spl.hex includes it.
This also affects the main u-boot image, so adjust
CONFIG_SPL_FS_LOAD_PAYLOAD_NAME to u-boot.img which now
also includes the dtb.
Signed-off-by: Dalon Westergreen <dwesterg@gmail.com>
Incorrect type of size variable results in 0 being
returned for sdram sizes greater than or equal to
4GB.
Signed-off-by: Dalon Westergreen <dwesterg@gmail.com>
Stratix10 combines the u-boot-spl image into the fpga configuration
bitstream so that the SDM can load the processors memory. This
process requires a hex format of the u-boot-spl image.
CONFIG_SPL_TARGET is set to "spl/u-boot-spl.hex"
Signed-off-by: Dalon Westergreen <dwesterg@gmail.com>
Some devices, namely Intel's stratix10 SoC, require u-boot-spl in
a hex format. This patch adds spl/u-boot-spl.hex as a possible
target.
Signed-off-by: Dalon Westergreen <dwesterg@gmail.com>
Add code to reset all reset signals as in gpio DT node. A reset property
is an optional feature, so only print out a warning and do not fail if a
reset property is not present.
If a reset property is discovered, then use it to deassert, thus
bringing the IP out of reset.
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
Enabled get_function support for dwapb where the function will
return the state of GPIO port.
Signed-off-by: Chin Liang See <chin.liang.see@intel.com>
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
Falcon mode allows the SPL to load and jump directly to the kernel,
without loading U-Boot proper.
Add detailed step by step on how to use Falcon mode on pico-imx6ul.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Falcon mode boots the kernel directly from SPL, without loading
the full U-Boot.
As pico-imx6ul does not have a GPIO for selecting Falcon versus normal
mode, enter in Falcon mode when the customer selects the
CONFIG_SPL_OS_BOOT option in menuconfig.
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
The serverip part is provided from DHCP server with
'option root-path "192.168.3.1:/srv/tftp/rootfs";' parameter in dhcpd.conf
Signed-off-by: Lukasz Majewski <lukma@denx.de>
The quotes around ${bootargs} were missing as we elaborate those variables
twice - once when we "setenv" the command and secondly when we "run" it.
Without quotes we have just empty string in the second call.
Moreover there is an issue with line breaks - as the original commands
got truncated.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
The 'dhcp' command is more versatile as it allows working with the DHCP
server to obtain serverip, ipaddress and other network parameters.
The configuration necessary to obtain the serverip (dhcpd.conf):
option option-150 code 150 = ip-address;
and in the subnet definition:
option option-150 192.168.X.Y;
Signed-off-by: Lukasz Majewski <lukma@denx.de>
The 'rootpath' can be provided by DHCP server. Removing this line prevents
from overwriting it.
To do that on the DHCP server side (isc-dhcp-server) modify dhcpd.conf
and add 'option root-path "192.168.X.Y:/srv/tftp/rootfs";'
Signed-off-by: Lukasz Majewski <lukma@denx.de>
