Prior to using a gpio a call to gpio_request() should be called to register
it with the gpio subsystem.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
This fixes a regression caused by e25fbe3fe5
(gw_ventana: Move the DCD settings to spl code)
The clock gating must be setup prior to calling arch_cpu_init(). Without this
booting to SD (directly via eFuse or via bmode) will hang.
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Fabio Estevam <fabio.estevam@freescale.com>
This commit combines catching missing memory and calibration data into
one if() block. It further prints pertinent information in determining
why the failure occurred.
Signed-off-by: Pushpal Sidhu <psidhu@gateworks.com>
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Add memory configuration for an IMX6SDL + 1GB density DRAM.
Signed-off-by: Pushpal Sidhu <psidhu@gateworks.com>
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
The initial revision of the GW551x does not connect enough signals between
the HDMI receiver and the IMX6 CSI for 16bit capture mode necessary for
yuv422smp capture. Future revisions will, but for the initial rev force it
to yuv422bt656 mode which requires an 8bit video data bus.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
The HDMI receiver used on the GW54xx and GW551x has a 16bit video data bus
interconnect between it and the IMX6 CSI. This can be used in two different
modes, each having advantages and disadvantages. Allow the hdmiinfmt env
var to specify which format is desired (yuv422smp or yuv422bt656).
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
The GW522x is functionally the same as a GW52xx except for PCIE_RST#
GPIO. Add a DT fixup to change this gpio upon bootup.
Signed-off-by: Pushpal Sidhu <psidhu@gateworks.com>
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
This adds information about the Gateworks System Controller to the gsc command
such as the firmware version, firmware CRC and status of the GSC watchdog
(if its enabled and if its tripped).
Additionally the 'gsc wd' command can be used to enable or disable the
watchdog with the following usage:
gsc wd enable [30|60]
gsc wd disable
Note that the GSC registers are battery-backed by the GSC coincell so once
eanbled, they remain enabled across power-cycles or until either the GSC
firmware has been updated or FLASH has been re-programmed by the Gateworks
JTAG adapter.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Configure kernel device-tree for display from env var. This is useful
to specify the display present when the device-tree supports multiple
non-detectable display configurations.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Certain older kernels in use by some customers erroneously define a uart3
for GW54xx with a pinmux that conflicts with NAND. This will remove
that node to avoid such conflicts.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Updated 16bit DDR calibration using values obtained from running the
i.MX6 DDR Stress Test tool over a set of boards over full operationg
temperature.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
The GW551x-A revision does not have the CSI0_DATA_EN pin connected, therefore
we need to make sure that signal is not muxed to the CSI_DATA_EN signal
internally and do so by steering it to the unused GPIO5_IO20.
We do this so that the kernel device-tree can properly define the signal for
RevB and beyond boards that do have this hooked up properly and require it.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Add a new voltage rail added in various -C revision PCB's.
Additionally make VDD_CORE, VDD_SOC, and VDD_IO2 common as all Ventana boards
have those.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Certain OS bootscripts need to know how much memory a board has to adjust
kernel parameters (namely Android). This allows those boards to determine
mem size in MB.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
The min/max of each depends not only on board but on CPU. Simplify by removing
this rarely needed and difficult to maintain feature and just display the
rails and their values.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
The GW551x is a small form factor board based on the IMX6 SoC that includes:
* up to 512MB DDR3 memory
* up to 2GB NAND flash
* 1x miniPCIe socket (with USB)
* HDMI out (micro-HDMI)
* HDMI in (micro-HDMI)
* TTL level I/O (supported by GW16111 breakout board):
* I2C
* 2x UART
* CAN
* 2x DIO (GPIO/PWM)
* USB OTG
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
A board level errata causes the IMX6 watchdog to be unstable on the GW51xx
RevA and RevB boards which can cause the watchdog to trip extremely early
(under 5seconds) under certain operating conditions. Disable the watchdog
node in the device-tree to work around this issue.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
The IMX6 Datasheets specifies that when the IMX6 LDO is enabled
(internal Anatop LDO's for VDD_ARM, VDD_SOC, and VDD_xPU) you need to
provide 1350mV on VDD_ARM_IN and VDD_SOC_IN for IMX6Q@1GHz (Automotive)
and 1275mV for IMX6DL@800MHz (Industrial). While we are still about 50mV
shy on the IMX6Q operating at 1GHz we set it to the max we can and leave it
up to the kernel to implement a regulator driver for the LTC3676 and put
the LDO's in bypass mode which allows us to drop the voltages by 125mV
respectively.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
The GW52xx has a MUX that can direct front-panel USB OTG to one of the
miniPCIe sockets (for use with a cellular modem for example). Use hwconfig
to steer this.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Gateworks Ventana boards don't all use IMX6 FEC, so lets define default
ethprime based off the first detected device.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Otherwise NAND booting is likely to fail. Since this disables the NAND related
clocks and SPL can't load the main U-Boot from NAND.
This problem was introduced with this patch:
e25fbe3f (gw_ventana: Move the DCD settings to spl code)
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Tim Harvey <tharvey@gateworks.com>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Fabio Estevam <fabio.estevam@freescale.com>
gw_ventana can boot from SPI or NAND and both of these interfaces boot from
the same 0x400 offset.
This means that we could simplify the code and replace the custom gw_ventana.cfg
with the generic spl_sd.cfg, as it provides the same boot offset of 0x400.
Cc: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
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>
mx6sabresd_spl.cfg configures CCM registers, GPR registers and CCM_CCOSR.
Move the configuration to the spl code.
CCM_CCOSR setting is no longer required to get audio functionality in the
kernel, so remove such setting.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
This commit introduces a Kconfig symbol for each ARM CPU:
CPU_ARM720T, CPU_ARM920T, CPU_ARM926EJS, CPU_ARM946ES, CPU_ARM1136,
CPU_ARM1176, CPU_V7, CPU_PXA, CPU_SA1100.
Also, it adds the CPU feature Kconfig symbol HAS_VBAR which is selected
for CPU_ARM1176 and CPU_V7.
For each target, the corresponding CPU is selected and the definition of
SYS_CPU in the corresponding Kconfig file is removed.
Also, it removes redundant "string" type in some Kconfig files.
Signed-off-by: Georges Savoundararadj <savoundg@gmail.com>
Acked-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
Cc: Masahiro Yamada <yamada.m@jp.panasonic.com>
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>
Zeroing GD in board_init_f() is not needed any more. As its now done in
crt0.S. The patch that clears the GD in crt0.S is this one:
aae2aef9 [arm: Set up global data before board_init_f()] from Simon.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Tim Harvey <tharvey@gateworks.com>
Cc: Stefano Babic <sbabic@denx.de>
Acked-by: Tim Harvey <tharvey@gateworks.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>
Now the types of CONFIG_SYS_{ARCH, CPU, SOC, VENDOR, BOARD, CONFIG_NAME}
are specified in arch/Kconfig.
We can delete the ones in arch and board Kconfig files.
This commit can be easily reproduced by the following command:
find . -name Kconfig -a ! -path ./arch/Kconfig | xargs sed -i -e '
/config[[:space:]]SYS_\(ARCH\|CPU\|SOC\|\VENDOR\|BOARD\|CONFIG_NAME\)/ {
N
s/\n[[:space:]]*string//
}
'
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.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 IMX6 MMDC calibration registers depend on propagation delay and capacitive
loading between the SoC's MMDC and the DDR3 chips. On the Ventana boards the
board layout varies little in trace-lengths such that propagation delays are
irrelevant thus we can simply things by using calibration values obtained
from various board layouts based on a common SoC and DDR chip configuration.
This eliminates board-model from being needed allowing more flexibility. These
values were tested on a large sample size of Gateworks Ventana boards ranging
in layout, and memory configuration over the entire temperature range supported.
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>
