Enable driver model for MTD and NAND support allowing us to remove
the iomux, init, and most of the static configuration.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Enable driver model support for MMC and SATA.
Note that DM_MMC requires aliases for your mmc devices so
they are added to the dts. Linux does not support enumerating mmc
devices by alias so these are not present in the Linux dts.
Note that we still need board_mmc_init() and board_mmc_getcd() for
not DM SPL to support MMC.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Enable dm support for USB (which also requires dm support for fixed
regulators used for vbus enable) and remove usb iomux which is no
longer needed.
We can remove the handling of otgpwr_en gpio as this is defined in
dt as usbotg vbus-supply but we need to keep the handling of
USB_HUB_RST# for boards that have a USB HUB as that isn't defined in
the dt's currently.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Once the IMX6 pinctrl driver is added UART is fully using driver mode
so we no longer need to config and initialize it.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
In preparation for dm conversion convert to OF_CONTROL by adding FIT image
support and multi dtb.
Add a board_fit_config_name_match to match the dtb based off of EEPROM
model.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Move this out of the common header and include it only where needed. In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly. Finally, we have a few
cases where we did not need to include <asm/global_data.h> at all, so
remove that include.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
The current macro is a misnomer since it does not declare a device
directly. Instead, it declares driver_info record which U-Boot uses at
runtime to create a device.
The distinction seems somewhat minor most of the time, but is becomes
quite confusing when we actually want to declare a device, with
of-platdata. We are left trying to distinguish between a device which
isn't actually device, and a device that is (perhaps an 'instance'?)
It seems better to rename this macro to describe what it actually is. The
macros is not widely used, since boards should use devicetree to declare
devices.
Rename it to U_BOOT_DRVINFO(), which indicates clearly that this is
declaring a new driver_info record, not a device.
Signed-off-by: Simon Glass <sjg@chromium.org>
We use 'priv' for private data but often use 'platdata' for platform data.
We can't really use 'pdata' since that is ambiguous (it could mean private
or platform data).
Rename some of the latter variables to end with 'plat' for consistency.
Signed-off-by: Simon Glass <sjg@chromium.org>
The Linux coding style guide (Documentation/process/coding-style.rst)
clearly says:
It's a **mistake** to use typedef for structures and pointers.
Besides, using typedef for structures is annoying when you try to make
headers self-contained.
Let's say you have the following function declaration in a header:
void foo(bd_t *bd);
This is not self-contained since bd_t is not defined.
To tell the compiler what 'bd_t' is, you need to include <asm/u-boot.h>
#include <asm/u-boot.h>
void foo(bd_t *bd);
Then, the include direcective pulls in more bloat needlessly.
If you use 'struct bd_info' instead, it is enough to put a forward
declaration as follows:
struct bd_info;
void foo(struct bd_info *bd);
Right, typedef'ing bd_t is a mistake.
I used coccinelle to generate this commit.
The semantic patch that makes this change is as follows:
<smpl>
@@
typedef bd_t;
@@
-bd_t
+struct bd_info
</smpl>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
We should not use typedefs in U-Boot. They cannot be used as forward
declarations which means that header files must include the full header to
access them.
Drop the typedef and rename the struct to remove the _s suffix which is
now not useful.
This requires quite a few header-file additions.
Signed-off-by: Simon Glass <sjg@chromium.org>
Move this header out of the common header. Network support is used in
quite a few places but it still does not warrant blanket inclusion.
Note that this net.h header itself has quite a lot in it. It could be
split into the driver-mode support, functions, structures, checksumming,
etc.
Signed-off-by: Simon Glass <sjg@chromium.org>
It is bad practice to include common.h in other header files since it can
bring in any number of superfluous definitions. It implies that some C
files don't include it and thus may be missing CONFIG options that are set
up by that file. The C files should include these themselves.
Update some header files in arch/arm to drop this.
Signed-off-by: Simon Glass <sjg@chromium.org>
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>
At present if CONFIG_SPL_GPIO_SUPPORT is enabled then the GPIO uclass
is included in SPL/TPL without any control for boards. Some boards may
want to disable this to reduce code size where GPIOs are not needed in
SPL or TPL.
Add a new Kconfig option to permit this. Default it to 'y' so that
existing boards work correctly.
Change existing uses of CONFIG_DM_GPIO to CONFIG_IS_ENABLED(DM_GPIO) to
preserve the current behaviour. Also update the 74x164 GPIO driver since
it cannot build with SPL.
This allows us to remove the hacks in config_uncmd_spl.h and
Makefile.uncmd_spl (eventually those files should be removed).
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This header file is now only used by files that access internal
environment features. Drop it from various places where it is not needed.
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Converted to use fsl_esdhc_imx for i.MX platforms.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Tested-by: Steffen Dirkwinkel <s.dirkwinkel@beckhoff.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Martyn Welch <martyn.welch@collabora.com>
Acked-by: Jason Liu <Jason.hui.liu@nxp.com>
device-tree paths should never be used that reference node addresses
making an assumption about leading zeros. They should not be there per
the device-tree specification however they have been there until Linux
4.15 when they were removed via kernel commit
8dccafaa281aa1d240a58bbcdff338aec114a021.
This fixes various issues which will occur when using Linux 4.15+
that are being fixed up on a per model per PCB revision basis such as:
- enabling MMC UHS-I on board revisions that support it
- enabling PWM based on hwconfig
- fixing PCIe reset on GW552x
- removing cpu external watchdog reset on boards that do not support it
- populate PCI dt nodes based on PCI scan in order to fix GW16082
interrupt mapping and inject MAC address for PCI based GbE
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
The GW5904/GW5909 have a SP33E multi-protocol serial transceiver which we
want to configure to RS232 by default (by de-asserting RS485_EN)
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
The GW5909 is a small single board computer based on the i.MX6DL SoC
with the same peripheral set as the GW5904 but with half the DRAM loaded
and an additional RS232 transceiver off UART2.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
The GW5908 is a small single board computer based on the i.MX6DL SoC
with the same peripheral set as the GW530x but with 1GiB density DRAM
(64bit 512MiB).
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
The GW5907 is a small single board computer based on the i.MX6DL SoC
with the following peripheral set:
- DDR3 memory (512MB default)
- 1x GigE (i.MX6 FEC)
- Gateworks System Controller
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
The GW5905 is single-board tablet computer based on the i.MX6 SoC with the
following peripheral set:
- eMMC flash (boot device)
- microSD expansion
- LVDS display connector for off-board 3D+1C with PWM backlight
and I2C based touch controller
- MIPI camera connector supporting the TRULY CM8487-B500SA-E (OV5640)
- ublox EMMY-W1 WiFi/Bluetooth/NFC module (SDIO/UART)
- ublox ZOE-M8Q GPS
- LSM9DS1 9-DOF IMU
- 1x 1-lane miniPCIe socket with USB 2.0
- Gateworks System Controller
- Audio jack with TLV320AIC Audio Codec, Speaker AMP
and TSA227E Headphone detect
- MAX8607 3-mode LED camera flash
- DECT ULE module
- FUSB302 USB-C PD and ISL9238 Battery charger
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Do not setup I2C3 in the SPL for Ventana as some devices on that bus
(aic3x codecs) can hang the bus causing i2c_setup to spin endlessly until
they are put into reset. Removing the setup of I2C3 from the SPL allows
the board-specific GPIO to be configured to take care of putting codecs
in reset prior to U-Boot setting up I2C3.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
The only UART that is garunteed on Ventana boards is UART2 (serial-console).
Remove UART1 pinmux as that it is not consistent across all Ventana boards
and U-Boot doesn't need it.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Add 'const' (also 'static' in some places) to struct node_info
arrays to save memory footprint.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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>
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>
In order that we can use eth_env_* even when CONFIG_NET isn't set, move
these functions to environment code from net code.
This fixes failures such as:
board/ti/am335x/built-in.o: In function `board_late_init':
board/ti/am335x/board.c:752: undefined reference to `eth_env_set_enetaddr'
u-boot/board/ti/am335x/board.c:766: undefined reference to `eth_env_set_enetaddr'
which caters for use cases such as:
commit f411b5cca4 ("board: am335x: Always set eth/eth1addr environment
variable")
when Ethernet is required in Linux, but not U-Boot.
Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
The command can only be used from full U-Boot, so do not build it into
SPL.
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Acked-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
The command can only be used from full U-Boot, so do not build it into
SPL.
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Acked-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Since the gpr_init() function is common for boards using MX6S, MX6DL, MX6D,
MX6Q and MX6QP processors move it to the soc.c file.
Signed-off-by: Breno Lima <breno.lima@nxp.com>
Acked-by: Stefano Babic <sbabic@denx.de>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
We are now using an env_ prefix for environment functions. Rename these
for consistency. Also add function comments in common.h.
Suggested-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>
We are now using an env_ prefix for environment functions. Rename these
two functions for consistency. Also add function comments in common.h.
Quite a few places use getenv() in a condition context, provoking a
warning from checkpatch. These are fixed up in this patch also.
Suggested-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>
We are now using an env_ prefix for environment functions. Rename setenv()
for consistency. Also add function comments in common.h.
Suggested-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>
This is a strange name for a function that loads the environment. There is
now only one implementation of this function, so use the new env_load()
function directly instead.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Change is consistent with other SOCs and it is in preparation
for adding SOMs. SOC's related files are moved from cpu/ to
mach-imx/<SOC>.
This change is also coherent with the structure in kernel.
Signed-off-by: Stefano Babic <sbabic@denx.de>
CC: Fabio Estevam <fabio.estevam@nxp.com>
CC: Akshay Bhat <akshaybhat@timesys.com>
CC: Ken Lin <Ken.Lin@advantech.com.tw>
CC: Marek Vasut <marek.vasut@gmail.com>
CC: Heiko Schocher <hs@denx.de>
CC: "Sébastien Szymanski" <sebastien.szymanski@armadeus.com>
CC: Christian Gmeiner <christian.gmeiner@gmail.com>
CC: Stefan Roese <sr@denx.de>
CC: Patrick Bruenn <p.bruenn@beckhoff.com>
CC: Troy Kisky <troy.kisky@boundarydevices.com>
CC: Nikita Kiryanov <nikita@compulab.co.il>
CC: Otavio Salvador <otavio@ossystems.com.br>
CC: "Eric Bénard" <eric@eukrea.com>
CC: Jagan Teki <jagan@amarulasolutions.com>
CC: Ye Li <ye.li@nxp.com>
CC: Peng Fan <peng.fan@nxp.com>
CC: Adrian Alonso <adrian.alonso@nxp.com>
CC: Alison Wang <b18965@freescale.com>
CC: Tim Harvey <tharvey@gateworks.com>
CC: Martin Donnelly <martin.donnelly@ge.com>
CC: Marcin Niestroj <m.niestroj@grinn-global.com>
CC: Lukasz Majewski <lukma@denx.de>
CC: Adam Ford <aford173@gmail.com>
CC: "Albert ARIBAUD (3ADEV)" <albert.aribaud@3adev.fr>
CC: Boris Brezillon <boris.brezillon@free-electrons.com>
CC: Soeren Moch <smoch@web.de>
CC: Richard Hu <richard.hu@technexion.com>
CC: Wig Cheng <wig.cheng@technexion.com>
CC: Vanessa Maegima <vanessa.maegima@nxp.com>
CC: Max Krummenacher <max.krummenacher@toradex.com>
CC: Stefan Agner <stefan.agner@toradex.com>
CC: Markus Niebel <Markus.Niebel@tq-group.com>
CC: Breno Lima <breno.lima@nxp.com>
CC: Francesco Montefoschi <francesco.montefoschi@udoo.org>
CC: Jaehoon Chung <jh80.chung@samsung.com>
CC: Scott Wood <oss@buserror.net>
CC: Joe Hershberger <joe.hershberger@ni.com>
CC: Anatolij Gustschin <agust@denx.de>
CC: Simon Glass <sjg@chromium.org>
CC: "Andrew F. Davis" <afd@ti.com>
CC: "Łukasz Majewski" <l.majewski@samsung.com>
CC: Patrice Chotard <patrice.chotard@st.com>
CC: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
CC: Hans de Goede <hdegoede@redhat.com>
CC: Masahiro Yamada <yamada.masahiro@socionext.com>
CC: Stephen Warren <swarren@nvidia.com>
CC: Andre Przywara <andre.przywara@arm.com>
CC: "Álvaro Fernández Rojas" <noltari@gmail.com>
CC: York Sun <york.sun@nxp.com>
CC: Xiaoliang Yang <xiaoliang.yang@nxp.com>
CC: Chen-Yu Tsai <wens@csie.org>
CC: George McCollister <george.mccollister@gmail.com>
CC: Sven Ebenfeld <sven.ebenfeld@gmail.com>
CC: Filip Brozovic <fbrozovic@gmail.com>
CC: Petr Kulhavy <brain@jikos.cz>
CC: Eric Nelson <eric@nelint.com>
CC: Bai Ping <ping.bai@nxp.com>
CC: Anson Huang <Anson.Huang@nxp.com>
CC: Sanchayan Maity <maitysanchayan@gmail.com>
CC: Lokesh Vutla <lokeshvutla@ti.com>
CC: Patrick Delaunay <patrick.delaunay@st.com>
CC: Gary Bisson <gary.bisson@boundarydevices.com>
CC: Alexander Graf <agraf@suse.de>
CC: u-boot@lists.denx.de
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
At present CONFIG_CMD_SATA enables the 'sata' command which also brings
in SATA support. Some boards may wish to enable SATA without the command.
Add a separate CONFIG to permit this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Early backports of the imx wdog external reset feature occured before the
property was accepted upstream and used 'ext-reset-output' instead of
'fsl,ext-reset-output'. In order to support older kernels remove both
properties.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
The variable nfc_pads is only referenced when CONFIG_CMD_NAND is set,
move the existing guard and drop a now redundant comment. The variable
gwproto_gpio_pads is never referenced, remove it.
Cc: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
This is only used by one board and should not be a CONFIG option. Instead
it should use the driver model pmic framework. For now, just move the
setting into the only board that uses it.
Signed-off-by: Simon Glass <sjg@chromium.org>
Now, arch/${ARCH}/include/asm/errno.h and include/linux/errno.h have
the same content. (both just wrap <asm-generic/errno.h>)
Replace all include directives for <asm/errno.h> with <linux/errno.h>.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
[trini: Fixup include/clk.]
Signed-off-by: Tom Rini <trini@konsulko.com>
Currently MX6 SPL DDR initialization hardcodes the REF_SEL and
REFR fields of the MDREF register as 1 and 7, respectively for
DDR3 and 0 and 3 for LPDDR2.
Looking at the MDREF initialization done via DCD we see that
boards do need to initialize these fields differently:
$ git grep 0x021b0020 board/
board/bachmann/ot1200/mx6q_4x_mt41j128.cfg:DATA 4 0x021b0020 0x00005800
board/ccv/xpress/imximage.cfg:DATA 4 0x021b0020 0x00000800 /* MMDC0_MDREF */
board/freescale/mx6qarm2/imximage.cfg:DATA 4 0x021b0020 0x7800
board/freescale/mx6qarm2/imximage.cfg:DATA 4 0x021b0020 0x00005800
board/freescale/mx6qarm2/imximage_mx6dl.cfg:DATA 4 0x021b0020 0x00005800
board/freescale/mx6qarm2/imximage_mx6dl.cfg:DATA 4 0x021b0020 0x00005800
board/freescale/mx6qsabreauto/imximage.cfg:DATA 4 0x021b0020 0x00005800
board/freescale/mx6qsabreauto/mx6dl.cfg:DATA 4 0x021b0020 0x00005800
board/freescale/mx6qsabreauto/mx6qp.cfg:DATA 4 0x021b0020 0x00005800
board/freescale/mx6sabresd/mx6dlsabresd.cfg:DATA 4 0x021b0020 0x00005800
board/freescale/mx6sabresd/mx6q_4x_mt41j128.cfg:DATA 4 0x021b0020 0x00005800
board/freescale/mx6slevk/imximage.cfg:DATA 4 0x021b0020 0x00001800
board/freescale/mx6sxsabreauto/imximage.cfg:DATA 4 0x021b0020 0x00000800
board/freescale/mx6sxsabresd/imximage.cfg:DATA 4 0x021b0020 0x00000800
board/warp/imximage.cfg:DATA 4 0x021b0020 0x00001800
So introduce a mechanism for users to be able to configure
REFSEL and REFR fields as needed.
Keep all the mx6 SPL users in their current REF_SEL and REFR values,
so no functional changes for the existing users.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Eric Nelson <eric@nelint.com>
Added removal of the fsl,ext-reset-output property in the wdog node for board
revisions that pre-date the addition of the external watchdog reset signal.
This property is a recent addition to mainline linux kernel in order to
specify that the IMX watchdog external reset should be used instead of the
internal chip-level reset.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Re-factor the board-specific dt fixups so that they are easier to follow
and extend in the future:
- use defines for DT paths
- use switch/case per board
- order models numerically
There is no functional change in the code
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
The hwconfig env var allows user to control hardware specific configuration
of board specific features but not all Ventana boards have the same features.
We will use the magic default value of "_UNKNOWN_" to signify that the
bootloader should create this based on detected board model.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Ventana boards with a PCI Marvell Sky2 GigE MAC require the MAC address to
be placed in a DT node in order for the mainline linux driver to obtain it.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
The GW16082 mini-PCI expansion mezzanine uses a TI XIO2001 PCIe-to-PCI
bridge with legacy INTA/B/C/D interrupts. These interrupts are assigned
in the reverse order according to the PCI spec.
If the TI bridge is found on the Ventana PCI bus, add device-tree nodes
according to bus enumeration explicitly defining the interrupt mapping
to override the default PCI mapping in the Linux kernel. This allows
the GW16082 to work with upstream kernels that support device-tree
irq parsing.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
UHS-I support is available on Ventana boards with micro-SD sockets depending
on the board revision. For backwards compatibility to not break users
who have old bootloaders and newer kernels the device-tree on boards with
microSD disables UHS-I support by default by defining the no-1-8-v property
in the esdhc controller node. For models/revisions that support switchable
1.8V/3.3V I/O which is detectable by the presence of a pull-down on the
SD3_VSELECT pin we remove that property to enable support in the kernel.
Additionally we add SD3_VSELECT to the pinmux for clarity (even though U-Boot
does not currently support UHS-I modes requiring 1.8V I/O).
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Removed several EEPROM bit dependencies:
- for dt aliases that don't exist and thus don't ever do anything
(pcie,lvds1,uart*,vpu,csi*,hdmi_in,hdmi_out,cvbs_in,cvbs_out,gps)
- for features that don't effect bus ordering or have no detrimental affect
if erroneously enabled when not present (ahci,nand,i2c*)
- for features that have little to no impact on being erroneously enabled
but high impact if erroneously disabled (can*, spi*)
- for features that have an high adverse affect of not being set when they
should and no adverse affect of being set when they
shouldn't (ipu*).
Removing these means the following:
- these no longer are supported with the econfig command
- these no longer affect the device-tree in any way
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
The MSATA feature is a board-specific feature on Gateworks Ventana boards.
In most cases a 2:1 mux will steer either PCIe or SATA to a miniPCIe socket
through an MSATA_EN gpio. In these such cases assign the gpio in the board
specific struct and use its presence to determine if we default the GPIO to
PCIe and if we later steer it according to hwconfig.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Most Ventana boards have a connector with off-board digital-I/O signals
including some that can be pinmuxed as either a PWM or a GPIO. The hwconfig
env variable is used to configure these and they will be pinmuxed according
to this configuration in the bootloader.
This patch adds a device-tree fixup that will enable the pwm controller
nodes appropriately for digital-I/O's that are configured as pwm via hwconfig
so that the pin can be used with the Linux kernel /sys/class/pwm API.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Calling request_gpio to register bklt_gpio with the GPIO driver had no effect
in setup_display called from early board init (although pinmuxing it and
configuring it as output-low does do what it should). Therefore move the
request_gpio later in enable_lvds so that its registered for use by the
gpio command if LVDS is actually enabled.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
The Gateworks System Controller on Ventana boards has the ability to
disable the board's primary power supply until the RTC hits a specific
time. When sleeping a button-down event on the GSC user pushbutton will
wake the board before it's wake time has been reached. This feature is
referred to as GSC sleep.
Add a command to invoke sleep mode for a specified number of seconds.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
If not booting Falcon mode, leave the boot watchdog enabled as a work-around
for other non-resolved bootloader hangs.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>