Michal Simek [Sat, 13 Feb 2016 09:49:03 +0000 (10:49 +0100)]
ARM: zynq: Enable EDID for zybo
Zybo contains on board HDMI that's why enable EDID.
Doing it via config because zynq i2c driver hasn't been moved to DM yet
and enabling via Kconfig requires DM_I2C.
This will be moved that driver is moved to DM.
Signed-off-by: Michal Simek <monstr@monstr.eu> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Michal Simek [Sat, 13 Feb 2016 09:31:32 +0000 (10:31 +0100)]
net: phy: realtek: Use generic genphy_parse_link() for RTL8211E
The problem with current implementation is that SPDDONE bit is 1
but link bit is zero. That's why phydev->link is setup to 0
which ending up in driver failure that link is not up.
Log:
Zynq> dhcp
ethernet@e000b000 Waiting for PHY auto negotiation to complete.......
done
ethernet@e000b000: No link.
There is at least 1ms delay between spddone bit and link up.
Use genphy_read_status() instead of realtek implemenation which is
working with page 11. Linux driver is also using generic implementation.
Signed-off-by: Michal Simek <monstr@monstr.eu> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Michal Simek [Tue, 16 Feb 2016 15:05:23 +0000 (16:05 +0100)]
dm: ns16550: Add support for reg-offset property
reg-offset is the part of standard 8250 binding in the kernel.
It is shifting start of address space by reg-offset.
On Xilinx platform this offset is typically 0x1000.
Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
Nathan Rossi [Tue, 16 Feb 2016 13:05:03 +0000 (23:05 +1000)]
ARM: zynq: Enable u-boot,dm-pre-reloc for qspi
Enable u-boot,dm-pre-reloc for qspi for zc706, zed and microzed.
Signed-off-by: Nathan Rossi <nathan@nathanrossi.com> Cc: Albert Aribaud <albert.u.boot@aribaud.net> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Simon Glass <sjg@chromium.org> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Michal Simek [Wed, 3 Feb 2016 14:16:51 +0000 (15:16 +0100)]
serial: zynq: Change logic in putc
Sync logic with Linux kernel where TX empty flag is checked before char
is sent.
This logic is fixing problem with console on zynqmp platform.
For example:
DRAM: 2 GiB
Enabling Caches...
EL Level: �� sdhci@ff170000: 0
Using default environment
Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Moritz Fischer <moritz.fischer@ettus.com>
Michal Simek [Thu, 4 Feb 2016 07:35:53 +0000 (08:35 +0100)]
ARM: zynq: Remove unused SPI base addresses
Remove unused macros. Adresses are taken from DT.
Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Moritz Fischer <moritz.fischer@ettus.com>
Peng Fan [Thu, 28 Jan 2016 08:55:09 +0000 (16:55 +0800)]
imx: mx7d: isolate resources to domain 0 for A7 core
In current design, if any peripheral was assigned to both A7 and M4,
it will receive ipg_stop or ipg_wait when any of the 2 platforms
enter low power mode. We will have a risk that, if A7 enter wait,
M4 enter stop, peripheral will have chance to get ipg_stop and ipg_wait
asserted same time. Also if M4 enters stop mode, A7 will have no
chance to access the peripheral.
There are 26 peripherals affected by this IC issue:
SIM2(sim2/emvsim2)
SIM1(sim1/emvsim1)
UART1/UART2/UART3/UART4/UART5/UART6/UART7
SAI1/SAI2/SAI3
WDOG1/WDOG2/WDOG3/WDOG4
GPT1/GPT2/GPT3/GPT4
PWM1/PWM2/PWM3/PWM4
ENET1/ENET2
Software Workaround:
The solution is to set the peripherals to Domain0 by A core, since A core
in Domain0. The peripherals which will be used by M4, will be set to Domain1
by M4.
For example, A core set WDOG4 to domain0, but when M4 boots up, M4 will
set WDOG4 to domain1, because M4 will use WDOG4.
So the peripherals are not shared by them. This way requires
the uboot implemented the RDC driver and set the 26 IPs above
to domain 0 only. M4 image will set the M4 to domain 1 and
set peripheral which it will use to domain 1.
This patch enables the CONFIG_IMX_RDC and CONFIG_IMX_BOOTAUX for
i.MX7D SABRESD board, and setup the 26 IP resources to domain 0.
Signed-off-by: Ye.Li <ye.li@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com>
Peng Fan [Thu, 28 Jan 2016 08:55:07 +0000 (16:55 +0800)]
imx: mx7: implement functions to boot auxiliary core
Implement arch_auxiliary_core_up and arch_auxiliary_core_check_up.
arch_auxiliary_core_check_up is used to check whether M4 is running
or not. arch_auxiliary_core_up is to boot M4 core, the m4 core will
use the pc and stack which is set in arch_auxiliary_core_up to set R15
and R13 register and boot.
Signed-off-by: Ye.Li <ye.li@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com>
Peng Fan [Thu, 28 Jan 2016 08:55:05 +0000 (16:55 +0800)]
imx: mx6: implement functions to boot auxiliary core
Implement arch_auxiliary_core_up and arch_auxiliary_core_check_up.
arch_auxiliary_core_check_up is used to check whether M4 is running
or not. arch_auxiliary_core_up is to boot M4 core, the m4 core will
use the pc and stack which is set in arch_auxiliary_core_up to set R15
and R13 register and boot.
Signed-off-by: Ye.Li <ye.li@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com>
Peng Fan [Thu, 28 Jan 2016 08:55:04 +0000 (16:55 +0800)]
imx: imx-common: introduce boot auxiliary core
To boot a auxiliary core in asymmetric multicore system, introduce the
new command "bootaux" to do it. Example of boot auxliary core from
0x70000000 where stores the boot head information that should be
parsed by auxiliary core, "bootaux 0x70000000".
Introduce Kconfig option IMX_BOOTAUX.
Signed-off-by: Ye.Li <ye.li@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com>
Peng Fan [Thu, 28 Jan 2016 08:55:00 +0000 (16:55 +0800)]
imx: imx-common: introduce Resource Domain Controller support
Introduce Resource Domain Controller support for i.MX.
Now i.MX6SX and i.MX7D supports this feature to assign masters
and peripherals to different domains.
Signed-off-by: Ye.Li <ye.li@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com>
Soeren Moch [Thu, 4 Feb 2016 13:41:15 +0000 (14:41 +0100)]
imx: mx6: Implement mmc_get_env_part
commit 216d286c7e3d3d83d4d8ccaf0415192e1b1040c0 [imx: mx6: implement
mmc_get_env_dev] introduced selection of the environment device according
to the boot device when booting from SD/MMC.
Extend this functionality for also selecting the device partition.
Peng Fan [Wed, 3 Feb 2016 02:06:08 +0000 (10:06 +0800)]
pinctrl: imx: Support i.MX7D
Introudce i.MX7 pinctrl driver support.
For now only i.MX7D supported.
There are two iomux controllers in i.MX7D, iomuxc and iomuxc_lpsr.
To iomuxc_lpsr, ZERO_OFFSET_VALID is set, means offset of mux_reg
and conf_reg can begin at 0.
Signed-off-by: Peng Fan <van.freenix@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Peng Fan [Wed, 3 Feb 2016 02:06:07 +0000 (10:06 +0800)]
pinctrl: imx: Introduce pinctrl driver for i.MX6
Introduce pinctrl for i.MX6
1. pinctrl-imx.c is for common usage. It's used by i.MX6/7.
2. Add PINCTRL_IMX PINCTRL_IMX6 Kconfig entry.
3. To the pinctrl_ops implementation, only set_state is implemented.
To i.MX6/7, the pinctrl dts entry is as following:
&iomuxc {
pinctrl-names = "default";
[.....]
};
there is no property named function or groups. So pinctrl_generic_set_state
can not be used here.
5. This driver is a simple implementation for i.mx iomux controller,
only parse the fsl,pins property and write value to registers.
6. With DEBUG enabled, we can see log when "i2c bus 0":
"
set_state_simple op missing
imx_pinctrl_set_state: i2c1grp
mux_reg 0x14c, conf_reg 0x3bc, input_reg 0x5d8, mux_mode 0x0, input_val 0x1, config_val 0x4000007f
write mux: offset 0x14c val 0x10
select_input: offset 0x5d8 val 0x1
write config: offset 0x3bc val 0x7f
mux_reg 0x148, conf_reg 0x3b8, input_reg 0x5d4, mux_mode 0x0, input_val 0x1, config_val 0x4000007f
write mux: offset 0x148 val 0x10
select_input: offset 0x5d4 val 0x1
write config: offset 0x3b8 val 0x7f
"
this means imx6 pinctrl driver works as expected.
Signed-off-by: Peng Fan <van.freenix@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Ulises Cardenas [Tue, 2 Feb 2016 10:39:39 +0000 (04:39 -0600)]
imx: Refactoring CAAM Job Ring structure and Secure Memory for imx7
Refactored data structure for CAAM's job ring and Secure Memory
to support i.MX7.
The new memory map use macros to resolve SM's offset by version.
This will solve the versioning issue caused by the new version of
secure memory of i.MX7
Andreas Bießmann [Tue, 16 Feb 2016 22:29:29 +0000 (23:29 +0100)]
mxsboot: remove unused include
Commit 276d3ebb883024d753cd9c69ab2fd243ffa1262e removed htole32() but missed
to remove the corresponding header. This is annoying, since BSD systems do not
have endian.h.
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com> Acked-by: Marek Vasut <marex@denx.de> Acked-by: Michael Heimpold <mhei@heimpold.de>
Bin Meng [Wed, 17 Feb 2016 08:16:25 +0000 (00:16 -0800)]
x86: Add Intel Cougar Canyon 2 board
This adds basic support to Intel Cougar Canyon 2 board, a board
based on Chief River platform with an Ivy Bridge processor and
a Panther Point chipset.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
Bin Meng [Wed, 17 Feb 2016 08:16:23 +0000 (00:16 -0800)]
x86: fsp: Make sure HOB list is not overwritten by U-Boot
Intel IvyBridge FSP seems to be buggy that it does not report memory
used by FSP itself as reserved in the resource descriptor HOB. The
FSP specification does not describe how resource descriptor HOBs are
generated by the FSP to describe what memory regions. It looks newer
FSPs like Queensbay and BayTrail do not have such issue. This causes
U-Boot relocation overwrites the important boot service data which is
used by FSP, and the subsequent call to fsp_notify() will fail.
To resolve this, we find out the lowest memory base address allocated
by FSP for the boot service data when walking through the HOB list in
fsp_get_usable_lowmem_top(). Check whether the memory top address is
below the FSP HOB list, and if not, use the lowest memory base address
allocated by FSP as the memory top address.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
Tested on link (ivybridge non-FSP) Tested-by: Simon Glass <sjg@chromium.org>
Bin Meng [Wed, 17 Feb 2016 08:16:22 +0000 (00:16 -0800)]
superio: Add SMSC SIO1007 driver
The SMSC SIO1007 superio chipset integrates two ns16550 compatible
serial ports for legacy applications, 16 GPIO pins and some other
functionalities like power management.
This adds a simple driver to enable serial port and handle GPIO.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Wed, 17 Feb 2016 08:16:21 +0000 (00:16 -0800)]
x86: ivybridge: Add FSP support
IvyBridge FSP package is built with a base address at 0xfff80000,
and does not use UPD data region. This adds basic FSP support.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
Tested on link (ivybridge non-FSP) Tested-by: Simon Glass <sjg@chromium.org>
Stephen Warren [Fri, 12 Feb 2016 21:27:56 +0000 (14:27 -0700)]
x86: fix memalign() parameter order
Purely by code inspection, it looks like the parameter order to memalign()
is swapped; its parameters are (align, size). 4096 is a likely desired
alignment, and a variable named size sounds like a size:-)
Fixes: 45b5a37836d5 ("x86: Add multi-processor init") Signed-off-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Bin Meng <bmeng.cn@gmail.com>
With release of ARC HS38 v2.1 new IO coherency engine could be built-in
ARC core. This hardware module ensures coherency between DMA-ed data
from peripherals and L2 cache.
With L2 and IOC enabled there's no overhead for L2 cache manual
maintenance which results in significantly improved IO bandwidth.
Alexey Brodkin [Mon, 14 Dec 2015 14:14:46 +0000 (17:14 +0300)]
arc: cache - accommodate different L1 cache line lengths
ARC core could be configured with different L1 and L2 (AKA SLC) cache
line lengths. At least these values are possible and were really used:
32, 64 or 128 bytes.
Current implementation requires cache line to be selected upon U-Boot
configuration and then it will only work on matching hardware. Indeed
this is quite efficient because cache line length gets hardcoded during
code compilation. But OTOH it makes binary less portable.
With this commit we allow U-Boot to determine real L1 cache line length
early in runtime and use this value later on. This extends portability
of U-Boot binary a lot.
Guillaume GARDET [Thu, 18 Feb 2016 17:17:36 +0000 (18:17 +0100)]
spl: if MMCSD_MODE_RAW fails, try MMCSD_MODE_FS
Since commit fd61d39970b9901217efc7536d9f3a61b4e1752a:
spl: mmc: add break statements in spl_mmc_load_image()
RAW and FS boot modes are now exclusive again. So, if MMCSD_MODE_RAW fails, the
board hangs. This patch allows to try MMCSD_MODE_FS then.
It has been tested on a beaglebone black to boot on an EXT partition.
Signed-off-by: Guillaume GARDET <guillaume.gardet@free.fr> Cc: Tom Rini <trini@konsulko.com> Cc: Nikita Kiryanov <nikita@compulab.co.il> Cc: Igor Grinberg <grinberg@compulab.co.il> Cc: Paul Kocialkowski <contact@paulk.fr> Cc: Pantelis Antoniou <panto@antoniou-consulting.com> Cc: Simon Glass <sjg@chromium.org> Cc: Matwey V. Kornilov <matwey.kornilov@gmail.com> Acked-by: Nikita Kiryanov <nikita@compulab.co.il>
Gregory CLEMENT [Wed, 16 Dec 2015 16:01:44 +0000 (17:01 +0100)]
ARM: Add Support for the VInCo platform
The Versatile Industrial Communication platform is a community oriented
board from Landis + Gyr. It comes with:
- an RS-485 port
- 2 Ethernet ports
- a wireless M-BUS
- a 4G modem
- a 4MB SPI flash
- a 4GB eMMC
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
[rebase on current TOT] Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Samuel Mescoff [Tue, 16 Feb 2016 08:45:06 +0000 (09:45 +0100)]
ARM: at91: sama5d2: configure the L2 cache memory
The SAMA5D2 has a second internal SRAM that can be reassigned as a L2
cache memory.
Make sure it is configured as a L2 cache memory when booting from a SPL
image.
Based on the commit b5ea95ef2b5b from the at91bootstrap repository.
Signed-off-by: Samuel Mescoff <samuel.mescoff@mobile-devices.fr> Reviewed-by: Wenyou Yang <wenyou.yang@atmel.com> Reviewed-by: Andreas Bießmann <andreas.devel@googlemail.com>
Marek Vasut [Thu, 11 Feb 2016 13:13:38 +0000 (14:13 +0100)]
arm: at91: Add support for DENX MA5D4 SoM and EVK
Add support for DENX MA5D4 SoM and MA5D4EVK board, based on the
Atmel SAMA5D4 SoC. The SoM contains the SoC, eMMC, SPI NOR, SPI
CAN controllers and DRAM, the baseboard contains UART connectors,
ethernet port, microSD slot, LCD header, 2x CAN connector and a
lot of expansion headers.
Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andreas Bießmann <andreas.devel@googlemail.com> Reviewed-by: Heiko Schocher <hs@denx.de> Reviewed-by: Andreas Bießmann <andreas.devel@googlemail.com>
Matthias Michel [Wed, 27 Jan 2016 14:56:07 +0000 (15:56 +0100)]
siemens,at91: enable features for smartweb
New features for smartweb:
* switch to hush command parser
* change autoboot stop to <ESC><ESC>
* allow to write ethaddr
Signed-off-by: Matthias Michel <matthias.michel@siemens.com> Reviewed-by: Samuel Egli <samuel.egli@siemens.com> Cc: Roger Meier <r.meier@siemens.com> Cc: Heiko Schocher <hs@denx.de> Reviewed-by: Heiko Schocher <hs@denx.de> Reviewed-by: Andreas Bießmann <andreas.devel@googlemail.com>
Wenyou Yang [Wed, 3 Feb 2016 02:16:51 +0000 (10:16 +0800)]
drivers: at91: clean up peripheral clock code
Due to introducing the new peripheral clock handle functions,
use these functions to reduce the duplicated code.
Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Tested-by: Heiko Schocher <hs@denx.de>
[fixup for missing clk.h in at91_emac.c] Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Wenyou Yang [Wed, 3 Feb 2016 02:16:50 +0000 (10:16 +0800)]
board: atmel: clean up peripheral clock code
Due to introducing the new peripheral clock handle functions,
use these functions to reduce duplicated code.
Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Tested-by: Heiko Schocher <hs@denx.de>
[Rebased on current master, fixup for at91rm9200ek] Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Tested-by: Heiko Schocher <hs@denx.de> Reviewed-by: Andreas Bießmann <andreas.devel@googlemail.com>
[fixup for arm920t code] Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Wenyou Yang [Wed, 3 Feb 2016 02:16:48 +0000 (10:16 +0800)]
ARM: at91: clock: add a new file to handle clock
To reduce the duplicated code, add a new file to accommodate
the peripheral's and system's clock handle code, shared with
the SoCs with different ARM core.
Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Tested-by: Heiko Schocher <hs@denx.de> Reviewed-by: Andreas Bießmann <andreas.devel@googlemail.com>
Stefan Roese [Wed, 10 Feb 2016 06:06:06 +0000 (07:06 +0100)]
net: phy: marvell: Fix problem with phy_reset() clearing BMCR
With commit a058052c [net: phy: do not read configuration register on
reset], phy_reset() will clear the BMCR register. Resulting in bit 12
being cleared (A/N enable). This leads to autonegotiation link problems,
at least on the Marvell Armada ClearFog board. I suspect that other
boards using this driver will be affected as well.
At the of m88e1111s_config(), phy_reset() is called. This is not needed
for the PHY to load the changed configuration, as phy_reset() is called
a few lines before already. So lets call genphy_restart_aneg() here
instead to start the AN correctly.
Tested on clearfog.
Signed-off-by: Stefan Roese <sr@denx.de> Cc: Stefan Agner <stefan@agner.ch> Cc: Hao Zhang <hzhang@ti.com> Cc: Michal Simek <monstr@monstr.eu> Cc: Andy Fleming <afleming@gmail.com> Cc: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Stefan Roese [Wed, 10 Feb 2016 06:06:05 +0000 (07:06 +0100)]
net: phy: marvell: Call phy_reset() where possible
Instead of coding the soft PHY reset function multiple times in marvell.c,
lets call the common phy_reset() function from phy.c.
Signed-off-by: Stefan Roese <sr@denx.de> Cc: Stefan Agner <stefan@agner.ch> Cc: Hao Zhang <hzhang@ti.com> Cc: Michal Simek <monstr@monstr.eu> Cc: Andy Fleming <afleming@gmail.com> Cc: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Stephen Warren [Mon, 15 Feb 2016 17:34:04 +0000 (10:34 -0700)]
ARM: tegra: enable USB device mode port on Dalmore
This allows U-Boot to expose UMS and DFU protocols on this port in device
mode, or to act as a USB host on the port, using an "OTG" (micro-B to
female A host) cable.
Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
Stephen Warren [Mon, 15 Feb 2016 17:34:03 +0000 (10:34 -0700)]
ARM: tegra: don't set CONFIG_USB_MAX_CONTROLLER_COUNT
This option is no longer used now that DM_USB is enabled.
Fixes: 534f9d3feffd ("dm: tegra: usb: Move USB to driver model") Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
Simon Glass [Sat, 30 Jan 2016 23:37:53 +0000 (16:37 -0700)]
tegra: video: Merge the display driver into one file
At present we have code in arch/arm and code in drivers/video. Move it all
into drivers/video since it is a display driver and our current approach is
to put all driver code in drivers/.
Make a few functions static now that they are not used outside the file. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Tom Warren <twarren@nvidia.com>
Simon Glass [Sat, 30 Jan 2016 23:37:52 +0000 (16:37 -0700)]
tegra: dts: Sync tegra20.dtsi with Linux v4.4
This file has changed quite a bit since it was set up. Sync it back with
Linux v4.4. Adjust the users slightly to cope with the changes:
- the host1x node is now called host1x@50000000
- we need a clocks node to provide the clk32k_in phandle
- active usb nodes need status = "okay"
- active i2c nodes need status = "okay"
Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
Simon Glass [Sat, 30 Jan 2016 23:37:50 +0000 (16:37 -0700)]
tegra: nyan-big: Move the LCD driver to driver model
Adjust the driver to use driver model. The SOR becomes a bridge device. We
use the normal simple_panel driver to handle the display itself. We also
need to enable some options such as regulators, PWMs and DM_VIDEO itself.
Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Tom Warren <twarren@nvidia.com>
Simon Glass [Sat, 30 Jan 2016 23:37:47 +0000 (16:37 -0700)]
tegra: lcd: Merge tegra124-lcd.c into display.c
There isn't a lot of benefit of have two separate files. With driver model
the code needs to be in the same driver, so it's better to have it in the
same file.
Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Tom Warren <twarren@nvidia.com>
Simon Glass [Sat, 30 Jan 2016 23:37:45 +0000 (16:37 -0700)]
tegra: gpio: Show the GPIO value for outputs
The tegra GPIO controller has two ways of reading the value of a GPIO. It
can supply the 'input' value (which is the value read from the pin) and the
'output' value (which is the value being driven from the pin. With a GPIO
set to output mode, the 'input' value is always low which is not very
useful.
This has the unfortunate result that setting a GPIO high still leaves it
showing as low in the 'gpio status' command.
Adjust the driver to check which direction the GPIO is set to, then read
the value from the appropriate register: 'input' for input GPIOs, 'output'
for output GPIOs.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
projects / people / ms / u-boot.git / log
