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>
x86: tangier: pinmux: add API to configure protected pins
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>
m68k: fix multiple memory accesses on swap operations
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.
Marek Vasut [Fri, 24 Aug 2018 19:43:17 +0000 (21:43 +0200)]
sh: tmu: Clean up register usage
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>
Marek Vasut [Fri, 24 Aug 2018 19:34:07 +0000 (21:34 +0200)]
sh: tmu: Clean up CONFIG_SH_TMU_CLK_FREQ
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>
Marek Vasut [Fri, 24 Aug 2018 19:23:04 +0000 (21:23 +0200)]
sh: tmu: Inline tmu_timer_{start,stop}()
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>
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"
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>
Otavio Salvador [Thu, 13 Sep 2018 19:57:05 +0000 (16:57 -0300)]
pico-imx6ul: Add Falcon mode support
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>
Lukasz Majewski [Fri, 31 Aug 2018 11:58:27 +0000 (13:58 +0200)]
ARM: bootscript: Fix the nfsargs and addip in K+P's tpcboot.cmd
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.
Heiko Schocher [Wed, 29 Aug 2018 06:33:36 +0000 (08:33 +0200)]
imx: imx6ull: fix pinmux input_val for uart5 rx pin
just try to bring up an imx6ull board with console
on uart5 and found, that input_val for pin
MX6UL_PAD_UART5_RX_DATA__UART5_DCE_RX is 7 and
not 5 on imx6ull.
There are two versions of imx6ul pico SOMs: one with 256MB and another
one with 512MB of RAM.
Convert to SPL so that both versions can be supported. This patch
doesn't rework the clock initialization to avoid changing the behavior
in this same patch, so it will be cleaned up in future.
Adam Ford [Mon, 3 Sep 2018 08:47:52 +0000 (03:47 -0500)]
MMC: davinici_mmc: Enable CD and WP with DM and OF_CONTROL
When used with a device tree, this will extract the card detect
and write protect pins from the device tree and configure them
accordingly. This assumes the GPIO_ACTIVE_LOW/HIGH is supported
by da8xx_gpio.
Adam Ford [Sun, 19 Aug 2018 16:11:03 +0000 (11:11 -0500)]
ARM: am3517_evm: Disable DM_I2C_COMPAT
DM_I2C_COMPAT is somehow being enabled outside of Kconfig, so
this explicitly undefines it in the header file, and brackets
the I2C initialization around an #ifdef to not manually
initialize the I2C controller when the DM_I2C is enabled.
Signed-off-by: Adam Ford <aford173@gmail.com> Tested-by: Derald D. Woods <woods.technical@gmail.com>
Adam Ford [Mon, 3 Sep 2018 19:05:41 +0000 (14:05 -0500)]
ARM: omap3_logic: Enable DM_PMIC and DM_REGULATOR
Enabling DM_PMIC, DM_REGULATOR_FIXED, and DM_REGULATOR_GPIO
gives us the ability to better monitor voltages and enable
hardware through the device tree. The TL4030 (TPS65950) is
not yet migrated to DM, so this patch only enables the fixed
and GPIO controlled regulators.
With DM enabled, this patch enables DM_SERIAL and removes
the NS16550 initialization from da850_lowlevel since the driver
will take care of that itself.
Adam Ford [Thu, 9 Aug 2018 11:15:12 +0000 (06:15 -0500)]
MMC: Enable DM_MMC for Davinci
With CONFIG_BLK becoming a requirement, the Davinci MMC driver
needs to be updated with DM_MMC support. Since SPL is tiny and
many boards do not support DM in SPL, this retains the backwards
compatibility for those boards who need to initialize MMC manually
in SPL.
Signed-off-by: Peter Howard <phoward@gme.net.au> Signed-off-by: Adam Ford <aford173@gmail.com>
Adam Ford [Mon, 3 Sep 2018 18:56:47 +0000 (13:56 -0500)]
ARM: omap3_logic: Enable Pinctrl
The simple pinctrl driver currently available works with the omap3.
Enabling this will use the device tree to automatically set the
pin-muxing for various drivers.
Adam Ford [Tue, 21 Aug 2018 12:16:56 +0000 (07:16 -0500)]
mmc: omap_hsmmc: Make DM_GPIO calls dependent on DM_GPIO
The getcd and getwp functions when DM_MMC is enabled are
assumming the DM_GPIO is enabled. In cases (like SPL) where
DM_GPIO may not be enabled, wrap these calls in an #ifdef
Adam Ford [Tue, 21 Aug 2018 01:43:00 +0000 (20:43 -0500)]
DM: serial: ti_omap3_common: Don't define serial unless !DM_SERIAL
The serial port was being manually configured during SPL build,
however in preparation to allow DM in SPL, this needs to change
to be based on whether or not DM_SERIAL is enabled because, soon
the assumption that SPL means no DM may not be accurate.
Signed-off-by: Adam Ford <aford173@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Adam Ford [Tue, 21 Aug 2018 01:34:00 +0000 (20:34 -0500)]
ARM: mach-omap2: Don't initialize I2C if DM_I2C is enabled
boot-common.c checks to see if I2C is enabled in SPL, but
it doens't check for DM_I2C before initializing it. This
will now only initialize the I2C is the DM_I2C is not enabled
to avoid initializing it more than once.
Signed-off-by: Adam Ford <aford173@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Adam Ford [Tue, 21 Aug 2018 01:27:48 +0000 (20:27 -0500)]
DM: omap_gpio: Reduce overhead when used with OF_PLATDATA
Platforms with limited resources in SPL may enable OF_PLATDATA,
this limits some of the library functions and cannot extract data
from the device tree. This patch adds additional wrappers around
these functions to only allow them when OF_CONTROL is enabled and
OF_PLATDATA is not.
Signed-off-by: Adam Ford <aford173@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Adam Ford [Tue, 21 Aug 2018 01:24:35 +0000 (20:24 -0500)]
DM: OMAP24XX_I2C: Reduce overhead when used with OF_PLATDATA
Platforms with limited resources in SPL may enably OF_PLATDATA,
this limits some of the library functions and cannot extract data
from the device tree. This patch adds additional wrappers around
these functions to only allow them when OF_CONTROL is enabled and
OF_PLATDATA is not.
Adam Ford [Tue, 21 Aug 2018 01:24:34 +0000 (20:24 -0500)]
DM: I2C: Reduce overhead when used with OF_PLATDATA
Platforms with limited resources in SPL may enably OF_PLATDATA,
this limits some of the library functions and cannot extract data
from the device tree. This patch adds additional wrappers around
these functions to only allow them when OF_CONTROL is enabled and
OF_PLATDATA is not.
Adam Ford [Fri, 17 Aug 2018 04:13:34 +0000 (23:13 -0500)]
DM: GPIO: Fix da8xx GPIO indexing over GPIO 32
The GPIO banks are broken up into two 16-bit registers for each
bank set. Unfortunately, the math that determines how to shift
blindly shifted by the number of the gpio. This worked for gpio
numbers under 32, but higher gpio's are broken. This fixes the
gpio index, so the bank is passed and the shift amount within
the register is passed now instead of the gpio number.
Fixes: 8e51c0f25406("dm: gpio: Add DM compatibility to
GPIO driver for Davinci")
Adam Ford [Wed, 15 Aug 2018 18:22:03 +0000 (13:22 -0500)]
ARM: configs: Add da850evm_nand to boot from NAND
The DA850-EVM supports booting from NAND when used with the
UI expander board. da850evm_nand will create an ais file
that can be burned to NAND and booted while storing the env in
NAND along with some partitions tables for storing kernel,
dtb and rootfs in NAND.
include: am654_evm: Establish initial environment for SD card boot
Create a basic U-Boot environment that allows the automatic loading
of a Linux Kernel located at /boot/Image and an associated device tree
blob located at /boot/k3-am654-base-board.dtb from the secondary
partition of an ext4-formatted SD card on the AM654x EVM. Furthermore
the boot.scr and uEnv.txt detection and loading schemes are supported
in a manner already known from other TI platforms.
Note that this is intended to be a starting point to enable initial
board use and will most certainly get extended and refactored as
different boot media become available.
Reviewed-by: Tom Rini <trini@konsulko.com> Signed-off-by: Andreas Dannenberg <dannenberg@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
projects / u-boot.git / log
