This function can fail if the device tree runs out of space. Rather than
silently booting with an incomplete device tree, allow the failure to be
detected.
Unfortunately this involves changing a lot of places in the code. I have
not changed behvaiour to return an error where one is not currently
returned, to avoid unexpected breakage.
Eventually it would be nice to allow boards to register functions to be
called to update the device tree. This would avoid all the many functions
to do this. However it's not clear yet if this should be done using driver
model or with a linker list. This work is left for later.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
Provide a public declaration of the board_spi_cs_gpio()
callback for i.MX SPI chip selects to prevent the warning
"Should it be static?" when compiling with "make C=1".
Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
MXC SPI driver has a feature whereas a GPIO line can be used to force CS high
across multiple transactions. This is set up by embedding the GPIO information
in the CS value:
cs = (cs | gpio << 8)
This merge of cs and gpio data into one value breaks the sf probe command:
if the use of gpio is required, invoking "sf probe <cs>" will not work, because
the CS argument doesn't have the GPIO information in it. Instead, the user must
use "sf probe <cs | gpio << 8>". For example, if bank 2 gpio 30 is used to force
cs high on cs 0, bus 0, then instead of typing "sf probe 0" the user now must
type "sf probe 15872".
This is inconsistent with the description of the sf probe command, and forces
the user to be aware of implementaiton details.
Fix this by introducing a new board function: board_spi_cs_gpio(), which will
accept a naked CS value, and provide the driver with the relevant GPIO, if one
is necessary.
Cc: Eric Nelson <eric.nelson@boundarydevices.com>
Cc: Eric Benard <eric@eukrea.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Tim Harvey <tharvey@gateworks.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Tom Rini <trini@ti.com>
Cc: Marek Vasut <marex@denx.de>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Reviewed-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
The leds array within struct ventana has space for 3 elements, but the
setup_board_gpio() function tries to set up 4 GPIOs for LEDs. Recent
versions of GCC complain about that:
board/gateworks/gw_ventana/gw_ventana.c: In function 'setup_board_gpio':
board/gateworks/gw_ventana/gw_ventana.c:987:27: warning: iteration 3u invokes undefined behavior [-Waggressive-loop-optimizations]
if (gpio_cfg[board].leds[i])
^
board/gateworks/gw_ventana/gw_ventana.c:986:2: note: containing loop
for (i = 0; i < 4; i++) {
^
Fix this by making the upper bound of the loop match the array size.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Tim Harvey <tharvey@gateworks.com>
Most Gateworks Ventana boards use a PLX PEX860x PCIe switch for PCIe expansion.
These boards use GPIO on the PLX device as PERST# for the downstream ports
thus we assert this when the PLX is enumerated.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
There are many similarities between the IMX6QUAD/IMX6DUAL and there are
many similarities between the IMX6SOLO/IMX6DUALITE. Add a 'soctype' env
variable that tells you which type you have.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
The GW5520 has an IMX6Q SoC with 512MB of DDR3, 256MB of NAND flash as well as:
* 2x MiniPCIe sockets
* 2x USB host sockets
* 2x i210 GigE
* HDMI out
* digital I/O expansion
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
The Gateworks Ventana EEPROM contains a set of configuration bits that
affect the removal of device-tree nodes that support peripherals that do not
exist on sub-loaded boards. This patch adds:
- a structure to define a config bit name, dt node alias, bit position
- an array of supported configuration items
- an econfig command to get/set/list configuration bits
- use of the array when adjusting the FDT prior to boot
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
The PCISKT_WDIS# gpio allows for asserting WDIS# going to the various PCIe
sockets on the Ventana board.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
The i2c_dis# pinmux/padconf was missing for the GW53xx (this feature was
added to the GW53xx on revB PCB's). Additionally, remove the duplicate
config for GW54xx.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
NAND devices have differing layouts with respect to page size and pages per
block. These parameters affect the parameters that need to be passed to
mkfs.ubifs and ubinize used to create UBI images. The various NAND chips
supported by Gateworks Ventana fall into two different layouts which we
refer to as 'normal' and 'large'. This layout is useful when referencing
ubi files to download and flash so we create a dynamic env variable for it.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
It is redundant to use 'PFUZE100_PMIC' as the PMIC name because we already
know it is a PMIC.
Call it simply 'PFUZE100' instead.
Cc: Tim Harvey <tharvey@gateworks.com>
Cc: Markus Niebel <Markus.Niebel@tq-group.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
There is no need to keep iomuxc_base_regs structure as it serves the exact same
purpose of the iomuxc structure, which is to provide access to the GPR
registers.
The additional fields of iomuxc_base_regs are not used. Other advantage of
'iomuxc' is that it has a shorter name and the variable declarations can fit
into a single line.
So remove iomuxc_base_regs structure and use iomuxc instead.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Stefano Babic <sbabic@denx.de>
Switch to an SPL image. The SPL for Ventana does the following:
- setup i2c and read the factory programmed EEPROM to obtain DRAM config
and model for board-specific calibration data
- configure DRAM per CPU/size/layout/devices/calibration
- load u-boot.img from NAND and jump to it
This allows for a single SPL+u-boot.img to replace the previous multiple boa
configurations.
Cc: Stefan Roese <sr@denx.de>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Andy Ng <andreas2025@gmail.com>
Cc: Eric Nelson <eric.nelson@boundarydevices.com>
Cc: Tapani Utriainen <tapani@technexion.com>
Cc: Tom Rini <trini@ti.com>
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
use the new iomux function and a macros to create a multi-dimensional array
of iomux values without duplicating the defintions.
Cc: Stefan Roese <sr@denx.de>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Andy Ng <andreas2025@gmail.com>
Cc: Eric Nelson <eric.nelson@boundarydevices.com>
Cc: Tapani Utriainen <tapani@technexion.com>
Cc: Tom Rini <trini@ti.com>
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Split the read_eeprom function out so that it can be shared (ie with SPL)
Cc: Stefan Roese <sr@denx.de>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Andy Ng <andreas2025@gmail.com>
Cc: Eric Nelson <eric.nelson@boundarydevices.com>
Cc: Tapani Utriainen <tapani@technexion.com>
Cc: Tom Rini <trini@ti.com>
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
The LTC3676 PMIC is used instead of the PFUZE100 PMIC on the
GW51xx/GW52xx/GW53xx Ventana baseboards. In order to support the IMX6Q SoC
at 1GHz on those baseboards, we need to adjust the voltage scaling for the SW1
and SW3 DC/DC converters on the LTC3676 for 1225mV. Note that the scalar
values for the LTC3676 are board-specific as they relate to a resistor devider
chosen by the board design.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Gateworks Ventana is a product family based on the i.MX6. This
patch adds support for all boards in the Ventana family. Where
possible, data from the boards EEPROM is used to determine various
details about the board at runtime.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
