oweals/u-boot.git
8 years agox86: Use the IRQ device when setting up the mptable
Simon Glass [Wed, 20 Jan 2016 04:32:28 +0000 (21:32 -0700)]
x86: Use the IRQ device when setting up the mptable

Instead of searching for the device tree node, use the IRQ device which has
a record of it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
8 years agodm: x86: Add a common PIRQ init function
Simon Glass [Wed, 20 Jan 2016 04:32:27 +0000 (21:32 -0700)]
dm: x86: Add a common PIRQ init function

Most x86 interrupt drivers will want to use the standard PIRQ routing and
table setup. Put this code in a common function so it can be used by those
drivers that want it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agodm: x86: Set up interrupt routing from interrupt_init()
Simon Glass [Wed, 20 Jan 2016 04:32:26 +0000 (21:32 -0700)]
dm: x86: Set up interrupt routing from interrupt_init()

At present interrupt routing is set up from arch_misc_init(). We can do it
a little later instead, in interrupt_init().

This removes the manual pirq_init() call. Where the platform does not have
an interrupt router defined in its device tree, no error is generated. Some
platforms do not have this.

Drop pirq_init() since it is no-longer used.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
8 years agodm: x86: Create a driver for x86 interrupts
Simon Glass [Wed, 20 Jan 2016 04:32:25 +0000 (21:32 -0700)]
dm: x86: Create a driver for x86 interrupts

It seems likely that at some point we will want a generic interrupt uclass.
But this is a big undertaking as it involves unifying code across multiple
architectures.

As a first step, create a simple IRQ uclass and a driver for x86. This can
be generalised later as required.

Adjust pirq_init() to probe this driver, which has the effect of creating
routing tables and setting up the interrupt routing. This is a start
towards making interrupts fit better with driver model.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agodm: x86: spi: Convert ICH SPI driver to driver model PCI API
Simon Glass [Tue, 19 Jan 2016 03:19:21 +0000 (20:19 -0700)]
dm: x86: spi: Convert ICH SPI driver to driver model PCI API

At present this SPI driver works by searching the PCI buses for its
peripheral. It also uses the legacy PCI API.

In addition the driver has code to determine the type of Intel PCH that is
used (version 7 or version 9). Now that we have proper PCH drivers we can
use those to obtain the information we need.

While the device tree has a node for the SPI peripheral it is not in the
right place. It should be on the PCI bus as a sub-peripheral of the LPC
device.

Update the device tree files to show the SPI controller within the PCH, so
that PCI access works as expected.

This patch includes Bin's fix-up patch from here:

   https://patchwork.ozlabs.org/patch/569478/

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
8 years agospi: ich: Separate out the read/write trace from normal debugging
Simon Glass [Tue, 19 Jan 2016 03:19:20 +0000 (20:19 -0700)]
spi: ich: Separate out the read/write trace from normal debugging

The trace is seldom useful for basic debugging. Allow it to be enabled
separately so that it is easier to see the more important init and error
debug messages.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agodm: x86: Add a driver for Intel PCH9
Simon Glass [Tue, 19 Jan 2016 03:19:19 +0000 (20:19 -0700)]
dm: x86: Add a driver for Intel PCH9

At some point we may need to distinguish between different types of PCHs,
but for existing supported platforms we only need to worry about version 7
and version 9 bridges. Add a driver for the PCH9.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agodm: x86: Add a driver for Intel PCH7
Simon Glass [Tue, 19 Jan 2016 03:19:18 +0000 (20:19 -0700)]
dm: x86: Add a driver for Intel PCH7

At some point we may need to distinguish between different types of PCHs,
but for existing supported platforms we only need to worry about version 7
and version 9 bridges. Add a driver for the PCH7.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agodm: Expand the uclass for Platform Controller Hubs (PCH)
Simon Glass [Tue, 19 Jan 2016 03:19:17 +0000 (20:19 -0700)]
dm: Expand the uclass for Platform Controller Hubs (PCH)

A Platform Controller Hub is an Intel concept - it is like the peripherals
on an SoC and is often in a separate chip from the CPU. The chip is typically
found on the first PCI bus and integrates multiple devices.

We have a very simple uclass to support PCHs. Add a few operations, such as
setting up the devices on the PCH and finding the SPI controller base
address. Also move it into drivers/pch/ since we will be adding a few PCH
drivers.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agodm: pci: Avoid using pci_bus_to_hose() in the uclass
Simon Glass [Tue, 19 Jan 2016 03:19:16 +0000 (20:19 -0700)]
dm: pci: Avoid using pci_bus_to_hose() in the uclass

This function is only available for compatibility with old code. Avoid
using it in the uclass.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
8 years agodm: pci: Add a function to write a BAR
Simon Glass [Tue, 19 Jan 2016 03:19:15 +0000 (20:19 -0700)]
dm: pci: Add a function to write a BAR

Add a driver-model version of the pci_write_bar32 function so that this is
supported in the new API.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agodm: pci: Move pci_bus_to_hose() to compatibility
Simon Glass [Tue, 19 Jan 2016 03:19:14 +0000 (20:19 -0700)]
dm: pci: Move pci_bus_to_hose() to compatibility

This function should not be used by driver-model code, so move it to the
compatibility portion.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agoMerge git://git.denx.de/u-boot-fdt
Tom Rini [Fri, 22 Jan 2016 22:01:22 +0000 (17:01 -0500)]
Merge git://git.denx.de/u-boot-fdt

8 years agodevicetree: use wildcard to clean arch subdir
Thomas Chou [Wed, 6 Jan 2016 01:49:24 +0000 (09:49 +0800)]
devicetree: use wildcard to clean arch subdir

Use wildcard to clean arch subdirectories, as it is cleaner than
listing all the arch which builds dtb.

Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agorockchip: Update the README
Simon Glass [Fri, 22 Jan 2016 02:45:25 +0000 (19:45 -0700)]
rockchip: Update the README

GPIO, I2C, LCD and HDMI are now implemented. We have more than one PMIC.
There is an implementation to run the CPU at full speed although it does
not seem to make much difference.

Update the README to cover recent developments.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: Add support for Raxda Rock 2
Simon Glass [Fri, 22 Jan 2016 02:45:24 +0000 (19:45 -0700)]
rockchip: Add support for Raxda Rock 2

This board includes an RK3288 SoC on a SOM. It can be mounted on a
base-board which provides a wide range of peripherals.

So far this is verified to boot to a prompt from a microSD card. The serial
console works as well as HDMI.

Thanks to Tom Cubie for sending me a board.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: rock2: dts: Make changes for U-Boot
Simon Glass [Fri, 22 Jan 2016 02:45:23 +0000 (19:45 -0700)]
rockchip: rock2: dts: Make changes for U-Boot

Add the required pre-relocation tags and SDRAM init information for U-Boot.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: rock2: Bring in device tree files from Linux
Simon Glass [Fri, 22 Jan 2016 02:45:22 +0000 (19:45 -0700)]
rockchip: rock2: Bring in device tree files from Linux

Bring in the current device tree files for rock2 from linux/next commit
719d6c1. Hopefully this is the latest one.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: dts: Sync up SPDIF node with Linux
Simon Glass [Fri, 22 Jan 2016 02:45:21 +0000 (19:45 -0700)]
rockchip: dts: Sync up SPDIF node with Linux

This has been added and we have references to it in the rock2 board. Add
this node.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: firefly-rk3288: Enable HDMI output
Simon Glass [Fri, 22 Jan 2016 02:45:20 +0000 (19:45 -0700)]
rockchip: firefly-rk3288: Enable HDMI output

Enable HDMI output and a console on firefly.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: jerry: Enable EDP and HDMI video output
Simon Glass [Fri, 22 Jan 2016 02:45:19 +0000 (19:45 -0700)]
rockchip: jerry: Enable EDP and HDMI video output

Enable these devices using the VOPL video output device. We explicitly
disable VOPB in the device tree to avoid it taking over. Since this device
has an LCD display this comes up by default. If the display fails for some
reason then it will attempt to use HDMI. It is possible to force it to fail
(and thus fall back to HDMI) by puting 'return -EPERM' at the top of
rk_edp_probe(). For now there is no easy way to select between the two.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: jerry: Add support for timing SPI flash speed
Simon Glass [Fri, 22 Jan 2016 02:45:18 +0000 (19:45 -0700)]
rockchip: jerry: Add support for timing SPI flash speed

Add the 'time' and 'sf test' commands so that we can test SPI flash
performance.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: spl: Support full-speed CPU in SPL
Simon Glass [Fri, 22 Jan 2016 02:45:17 +0000 (19:45 -0700)]
rockchip: spl: Support full-speed CPU in SPL

Add a feature which speeds up the CPU to full speed in SPL to minimise
boot time. This is only supported for certain boards (at present only
jerry).

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: rk3288: pinctrl: Fix HDMI pinctrl
Simon Glass [Fri, 22 Jan 2016 02:45:16 +0000 (19:45 -0700)]
rockchip: rk3288: pinctrl: Fix HDMI pinctrl

Since the device tree does not specify the EDID pinctrl option for HDMI we
must set it manually. Fix the driver to handle this.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: rk3288: clock: Fix various minor errors
Simon Glass [Fri, 22 Jan 2016 02:45:15 +0000 (19:45 -0700)]
rockchip: rk3288: clock: Fix various minor errors

Fix a number of small errors which were found in reviewing the clock code.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: jerry: Fix the SDRAM timing
Simon Glass [Fri, 22 Jan 2016 02:45:14 +0000 (19:45 -0700)]
rockchip: jerry: Fix the SDRAM timing

There is a minor error in the SDRAM timing. It does not seem to affect
anything so far. Fix it just in case.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: spl: Drop MMC support code when not needed
Simon Glass [Fri, 22 Jan 2016 02:45:13 +0000 (19:45 -0700)]
rockchip: spl: Drop MMC support code when not needed

When the board does not use MMC SPL this code is a waste of space. Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: Tidy up the register-access macros
Simon Glass [Fri, 22 Jan 2016 02:45:12 +0000 (19:45 -0700)]
rockchip: Tidy up the register-access macros

These work reasonable well, but there are a few errors:

- Brackets should be used to avoid unexpected side-effects
- When setting bits, the corresponding upper 16 bits should be set also

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: sdram: Use syscon_get_first_range() where possible
Simon Glass [Fri, 22 Jan 2016 02:45:11 +0000 (19:45 -0700)]
rockchip: sdram: Use syscon_get_first_range() where possible

This is a shortcut to obtaining a register address. Use it where possible, to
simplify the code.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: sdram: Tidy up a few comments
Simon Glass [Fri, 22 Jan 2016 02:45:10 +0000 (19:45 -0700)]
rockchip: sdram: Tidy up a few comments

Fix spaces in two comments in this file.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: config: Enable the 'gpio' command
Simon Glass [Fri, 22 Jan 2016 02:45:09 +0000 (19:45 -0700)]
rockchip: config: Enable the 'gpio' command

Now that we have a pretty good GPIO driver, enable the 'gpio' command on all
rockchip boards.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: Add a script to parse datasheets
Simon Glass [Fri, 22 Jan 2016 02:45:08 +0000 (19:45 -0700)]
rockchip: Add a script to parse datasheets

This script has proved useful for parsing datasheets and creating register
shift/mask values for use in header files. Include it in case it is useful
for others.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: Add a simple 'clock' command
Simon Glass [Fri, 22 Jan 2016 02:45:07 +0000 (19:45 -0700)]
rockchip: Add a simple 'clock' command

Add a command that displays the PLLs and their current rate.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: Don't skip low-level init
Simon Glass [Fri, 22 Jan 2016 02:45:06 +0000 (19:45 -0700)]
rockchip: Don't skip low-level init

At present the low-level init is skipped on rockchip. Among other things
this means that the instruction cache is left disabled. Fix this.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: video: Add a video-output driver
Simon Glass [Fri, 22 Jan 2016 02:45:05 +0000 (19:45 -0700)]
rockchip: video: Add a video-output driver

Some rockchip SoCs include video output (VOP). Add a driver to support this.
It can output via a display driver (UCLASS_DISPLAY) and currently HDMI and
eDP are supported.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: video: Add a display driver for rockchip eDP
Simon Glass [Fri, 22 Jan 2016 02:45:04 +0000 (19:45 -0700)]
rockchip: video: Add a display driver for rockchip eDP

Some Rockchip SoCs support embedded DisplayPort output. Add a display driver
for this so that these displays can be used on supported boards.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: video: Add a display driver for rockchip HDMI
Simon Glass [Fri, 22 Jan 2016 02:45:03 +0000 (19:45 -0700)]
rockchip: video: Add a display driver for rockchip HDMI

Some Rockchip SoCs support HDMI output. Add a display driver for this so
that these displays can be used on supported boards.

Unfortunately this driver is not fully functional. It cannot reliably read
EDID information over HDMI. This seems to be due to the clocks being
incorrect - the I2C bus speed appears to be up to 100x slower than the
clock settings indicate. The root cause may be in the clock logic.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: clk: Add support for clocks needed by the displays
Simon Glass [Fri, 22 Jan 2016 02:45:02 +0000 (19:45 -0700)]
rockchip: clk: Add support for clocks needed by the displays

The displays need to use NPLL and also select some new peripheral clocks.
Add support for these to the clock driver.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: Rename the CRU_MODE_CON fields
Simon Glass [Fri, 22 Jan 2016 02:45:01 +0000 (19:45 -0700)]
rockchip: Rename the CRU_MODE_CON fields

These should match the datasheet naming. Adjust them.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agodm: video: Repurpose the 'displayport' uclass to 'display'
Simon Glass [Fri, 22 Jan 2016 02:45:00 +0000 (19:45 -0700)]
dm: video: Repurpose the 'displayport' uclass to 'display'

The current DisplayPort uclass is too specific. The operations it provides
are shared with other types of output devices, such as HDMI and LVDS LCD
displays.

Generalise the uclass so that it can be used with these devices as well.
Adjust the uclass to handle the EDID reading and conversion to
display_timing internally.

Also update nyan-big which is affected by this.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agovideo: panel: Add a simple panel driver
Simon Glass [Fri, 22 Jan 2016 02:44:59 +0000 (19:44 -0700)]
video: panel: Add a simple panel driver

Most panels are very simple - they just have a power supply and a backlight.
Add a driver which supports this and implements the enable_backlight()
method.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agodm: panel: Add a panel uclass
Simon Glass [Fri, 22 Jan 2016 02:44:58 +0000 (19:44 -0700)]
dm: panel: Add a panel uclass

LCD panels can usefully be modelled as their own uclass. They can be probed
(which powers them up ready for use). If they have a backlight, this can be
enabled.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agodm: backlight: Add a driver for a PWM backlight
Simon Glass [Fri, 22 Jan 2016 02:44:57 +0000 (19:44 -0700)]
dm: backlight: Add a driver for a PWM backlight

Many backlights need to use a PWM to control the brightness. Add a driver
for this. It understands the standard device tree binding.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agodm: backlight: Add a backlight uclass
Simon Glass [Fri, 22 Jan 2016 02:44:56 +0000 (19:44 -0700)]
dm: backlight: Add a backlight uclass

LCD panels normally have a backlight which can be controlled to illuminate
the LCD contents. Add a uclass to support this. Initially it only has a
method to enable the backlight.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agopwm: rockchip: Add a PWM driver for Rockchip SoCs
Simon Glass [Fri, 22 Jan 2016 02:44:55 +0000 (19:44 -0700)]
pwm: rockchip: Add a PWM driver for Rockchip SoCs

Add a simple driver which implements the standard PWM uclass interface.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agodm: pwm: Add a PWM uclass
Simon Glass [Fri, 22 Jan 2016 02:44:54 +0000 (19:44 -0700)]
dm: pwm: Add a PWM uclass

Add a uclass that supports Pulse Width Modulation (PWM) devices. It
provides methods to enable/disable and configure the device.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agovideo: bridge: Allow GPIOs to be optional
Simon Glass [Fri, 22 Jan 2016 02:44:53 +0000 (19:44 -0700)]
video: bridge: Allow GPIOs to be optional

Some video bridges will not have GPIOs to control reset, etc. Allow these
to be optional.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agovideo: Add a function to control cache flushing
Simon Glass [Fri, 22 Jan 2016 02:44:52 +0000 (19:44 -0700)]
video: Add a function to control cache flushing

Allow the cache-flushing function of a video device to be controlled.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agovideo: Name consoles by their number
Simon Glass [Fri, 22 Jan 2016 02:44:51 +0000 (19:44 -0700)]
video: Name consoles by their number

We must use the console name in the 'stdout' variable to select the one
we want. At present the name is formed from the driver name with a suffix
indicating the rotation value.

It seems better to name them sequentially since this can be controlled by
driver order. So adjust the code to use 'vidconsole' for the first,
'vidconsole1' for the second, etc.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agogpio: Warn about invalid GPIOs used with the 'gpio' command
Simon Glass [Fri, 22 Jan 2016 02:44:50 +0000 (19:44 -0700)]
gpio: Warn about invalid GPIOs used with the 'gpio' command

At present there is no indication that an invalid GPIO is used except that
the GPIO status is not displayed. Make the error more explicit to avoid
confusion.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agostdio: Correct a build error with driver model
Simon Glass [Fri, 22 Jan 2016 02:44:49 +0000 (19:44 -0700)]
stdio: Correct a build error with driver model

When driver model is used for video but not for the keyboard, a compiler
warnings is produced. Fix it.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: jerry: Enable the Chrome OS EC
Simon Glass [Fri, 22 Jan 2016 02:44:13 +0000 (19:44 -0700)]
rockchip: jerry: Enable the Chrome OS EC

Turn on the EC and enable the keyboard.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: spi: Remove the explicit pinctrl setting
Simon Glass [Fri, 22 Jan 2016 02:44:12 +0000 (19:44 -0700)]
rockchip: spi: Remove the explicit pinctrl setting

The correct pinctrl is handled automatically so we don't need to do it in
the driver. The exception is when we want to use a different chip select
(other than 0). But this isn't used at present.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: spi: Correct chip-enable code
Simon Glass [Fri, 22 Jan 2016 02:44:11 +0000 (19:44 -0700)]
rockchip: spi: Correct chip-enable code

At present there is an incorrect call to rkspi_enable_chip(). It should
be disabling the chip, not enabling it. Correct this and ensure that the
chip is disabled when releasing the bus.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: spi: Implement the delays
Simon Glass [Fri, 22 Jan 2016 02:44:10 +0000 (19:44 -0700)]
rockchip: spi: Implement the delays

Some devices need delays before and after activiation. Implement these
features in the SPI driver so that we will be able to enable the Chrome
OS EC.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: gpio: Implement the get_function() method
Simon Glass [Fri, 22 Jan 2016 02:44:09 +0000 (19:44 -0700)]
rockchip: gpio: Implement the get_function() method

Provide this method so that 'gpio status' works fully. It now shows
whether a pin is used for input, output or some other function.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: gpio: Read the GPIO value correctly
Simon Glass [Fri, 22 Jan 2016 02:44:08 +0000 (19:44 -0700)]
rockchip: gpio: Read the GPIO value correctly

This function should return 0 or 1, not a mask. Fix it.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: pinctrl: Implement the get_gpio_mux() method
Simon Glass [Fri, 22 Jan 2016 02:44:07 +0000 (19:44 -0700)]
rockchip: pinctrl: Implement the get_gpio_mux() method

Implement this so that the GPIO command will be able to report whether a
GPIO is used for input or output.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: pinctrl: Reduce the size for SPL
Simon Glass [Fri, 22 Jan 2016 02:44:06 +0000 (19:44 -0700)]
rockchip: pinctrl: Reduce the size for SPL

This file has many features that are not needed by SPL. Use #ifdef to
remove the unused features and reduce the code size.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: clk: Make rkclk_get_clk() SoC-specific
Simon Glass [Fri, 22 Jan 2016 02:44:05 +0000 (19:44 -0700)]
rockchip: clk: Make rkclk_get_clk() SoC-specific

The current method assumes that clocks are numbered from 0 and we can
determine a clock by its number. It is safer to use an ID in the clock's
platform data to avoid the situation where another clock is bound before
the one we expect.

Move the existing code into rk3036 since it still works there. Add a new
implementation for rk3288.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: spi: Correct the bus init code
Simon Glass [Fri, 22 Jan 2016 02:44:04 +0000 (19:44 -0700)]
rockchip: spi: Correct the bus init code

Two of the init values are created locally so cannot be out of range.
The masking is unnecessary and in one case is incorrect. Fix it.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: spi: Remember the last speed to avoid re-setting it
Simon Glass [Fri, 22 Jan 2016 02:44:03 +0000 (19:44 -0700)]
rockchip: spi: Remember the last speed to avoid re-setting it

Rather than changing the clock to the same value on every transaction,
remember the last value and don't adjust the clock unless it is necessary.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: reset: Use the rk_clr/setreg() interface
Simon Glass [Fri, 22 Jan 2016 02:44:02 +0000 (19:44 -0700)]
rockchip: reset: Use the rk_clr/setreg() interface

Use this function in preference to the macro.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: sdram: Use the rk_clr/setreg() interface
Simon Glass [Fri, 22 Jan 2016 02:44:01 +0000 (19:44 -0700)]
rockchip: sdram: Use the rk_clr/setreg() interface

Use this function in preference to the macro.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agodm: clk: Add a simple version of clk_get_by_index()
Simon Glass [Fri, 22 Jan 2016 02:44:00 +0000 (19:44 -0700)]
dm: clk: Add a simple version of clk_get_by_index()

This function adds quite a bit of code to SPL and we probably don't need
all the features in SPL. Add a simple version (for SPL only) to save space.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agodm: power: Allow regulators to not implement all operations
Simon Glass [Fri, 22 Jan 2016 02:43:59 +0000 (19:43 -0700)]
dm: power: Allow regulators to not implement all operations

Some regulators will not implement any operations (e.g. fixed regulators).
This is not an error, so allow the autoset process to continue when one
of these regulators is found.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agodm: power: Tidy up debugging output and return values
Simon Glass [Fri, 22 Jan 2016 02:43:58 +0000 (19:43 -0700)]
dm: power: Tidy up debugging output and return values

The currect PMIC debugging is a little confusing. Adjust it so that it is
clear whether the operation succeeded or failed. Also, avoid creating a new
error return value when a perfectly good one is already available.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agodm: core: Export uclass_find_device_by_of_offset()
Simon Glass [Fri, 22 Jan 2016 02:43:57 +0000 (19:43 -0700)]
dm: core: Export uclass_find_device_by_of_offset()

It is sometimes useful to be able to find a device before probing it,
perhaps to set up some platform data for it. Allow finding by of_offset
also.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agodm: pinctrl: Add a way for a GPIO driver to obtain a pin function
Simon Glass [Fri, 22 Jan 2016 02:43:56 +0000 (19:43 -0700)]
dm: pinctrl: Add a way for a GPIO driver to obtain a pin function

GPIO drivers want to be able to show if a pin is enabled for input, output,
or is being used by another function. Some drivers can easily find this
and the code is included in the driver. For some SoCs this is more complex.
Conceptually this should be handled by pinctrl rather than GPIO. Most
pinctrl drivers will have this feature anyway.

Add a method by which a GPIO driver can obtain the pin mux value given a
GPIO reference. This avoids repeating the code in two places.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agodm: power: Allow regulators to be omitted from SPL
Simon Glass [Fri, 22 Jan 2016 02:43:55 +0000 (19:43 -0700)]
dm: power: Allow regulators to be omitted from SPL

For some boards the pmic interface is useful but the regulator interface
(which comes with it) is too large. Allow them to be separated such that
SPL can decide which it needs.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agospi: Correct device tree usage in spi_flash_decode_fdt()
Simon Glass [Fri, 22 Jan 2016 02:43:54 +0000 (19:43 -0700)]
spi: Correct device tree usage in spi_flash_decode_fdt()

This function currently searches the entire device tree for a node that
it thinks is relevant. But the node is known and is passed in. Correct the
code and enable it only with driver model, since only driver-model boards
will use it.

This avoids bringing in a large number of strings from fdtdec.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agodm: i2c: Allow muxes to be enabled for SPL separately
Simon Glass [Fri, 22 Jan 2016 02:43:53 +0000 (19:43 -0700)]
dm: i2c: Allow muxes to be enabled for SPL separately

Since I2C muxes are seldom needed in SPL, and the code for this increases
the size somewhat, add a separate option to enable I2C muxes for SPL.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agocros_ec: Disable the Chrome OS EC in SPL
Simon Glass [Fri, 22 Jan 2016 02:43:52 +0000 (19:43 -0700)]
cros_ec: Disable the Chrome OS EC in SPL

This is not used in SPL so don't allow it to be built there, even if I2C
is enabled in SPL.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agogpio: Allow 's' as an abbreviation for 'status'
Simon Glass [Fri, 22 Jan 2016 02:43:51 +0000 (19:43 -0700)]
gpio: Allow 's' as an abbreviation for 'status'

The 'gpio' command allows abbreviations for most subcommands. Allow them
for 'status' also.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: jerry: Drop unused options
Simon Glass [Fri, 22 Jan 2016 02:43:50 +0000 (19:43 -0700)]
rockchip: jerry: Drop unused options

To reduce the SPL image size, drop the LED features. Jerry does not have
an LED and we can leave out GPIO support also.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: Disable simple-bus in SPL for firefly-rk3288, jerry
Simon Glass [Fri, 22 Jan 2016 02:43:49 +0000 (19:43 -0700)]
rockchip: Disable simple-bus in SPL for firefly-rk3288, jerry

This is not needed for booting, so drop it from SPL to save about 300 bytes.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: jerry: Enable the RK808 PMIC and regulator
Simon Glass [Fri, 22 Jan 2016 02:43:48 +0000 (19:43 -0700)]
rockchip: jerry: Enable the RK808 PMIC and regulator

Enable this PMIC and regulator, which is used on jerry.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: Move firefly and jerry to use the full pinctrl
Simon Glass [Fri, 22 Jan 2016 02:43:47 +0000 (19:43 -0700)]
rockchip: Move firefly and jerry to use the full pinctrl

Use the full pinctrl driver in U-Boot proper.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: pinctrl: Add a full pinctrl driver
Simon Glass [Fri, 22 Jan 2016 02:43:46 +0000 (19:43 -0700)]
rockchip: pinctrl: Add a full pinctrl driver

We can make use of the device tree to configure pinctrl settings. Add this
support for the driver so we can use it in U-Boot proper.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: mmc: Update the driver to use the new clock ID
Simon Glass [Fri, 22 Jan 2016 02:43:45 +0000 (19:43 -0700)]
rockchip: mmc: Update the driver to use the new clock ID

We can use the new clk_get_by_index() function to get the correct clock.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: spi: Avoid setting the pinctrl twice
Simon Glass [Fri, 22 Jan 2016 02:43:44 +0000 (19:43 -0700)]
rockchip: spi: Avoid setting the pinctrl twice

If full pinctrl is enabled we don't need to manually set the pinctrl in the
driver. It will happen automatically. Adjust the code to suit - we will
still use manual mode in SPL.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: spi: Update the driver to use the new clock ID
Simon Glass [Fri, 22 Jan 2016 02:43:43 +0000 (19:43 -0700)]
rockchip: spi: Update the driver to use the new clock ID

We can use the new clk_get_by_index() function to get the correct clock.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: i2c: Update the driver to use the new clock ID
Simon Glass [Fri, 22 Jan 2016 02:43:42 +0000 (19:43 -0700)]
rockchip: i2c: Update the driver to use the new clock ID

We can use the new clk_get_by_index() function to get the correct clock.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: clock: Add a function to find a clock by ID
Simon Glass [Fri, 22 Jan 2016 02:43:41 +0000 (19:43 -0700)]
rockchip: clock: Add a function to find a clock by ID

The current approach of using uclass_get_device() is error-prone. Another
clock (for example a fixed-clock) may cause it to break. Add a function that
does a proper search.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: clk: Add a function to get a peripheral clock rate
Simon Glass [Fri, 22 Jan 2016 02:43:40 +0000 (19:43 -0700)]
rockchip: clk: Add a function to get a peripheral clock rate

It is useful to be able to read the rate of a peripheral clock. Add a
handler for that.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: clock: Rename the general clock variable to gclk_rate
Simon Glass [Fri, 22 Jan 2016 02:43:39 +0000 (19:43 -0700)]
rockchip: clock: Rename the general clock variable to gclk_rate

The current name is confusing and a bit verbose. Rename it.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: Use a separate clock ID for clocks
Simon Glass [Fri, 22 Jan 2016 02:43:38 +0000 (19:43 -0700)]
rockchip: Use a separate clock ID for clocks

At present we use the same peripheral ID for clocks and pinctrl. While this
works it is probably better to use the device tree clock binding ID for
clocks. We can use the clk_get_by_index() function to find this.

Update the clock drivers and the code that uses them.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: jerry: Disable pmic-int-1 setup to avoid a hang
Simon Glass [Fri, 22 Jan 2016 02:43:37 +0000 (19:43 -0700)]
rockchip: jerry: Disable pmic-int-1 setup to avoid a hang

This hangs when activated (by probing the PMIC). Disable it for now until we
understand the root cause.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: Use pwrseq for MMC start-up on jerry
Simon Glass [Fri, 22 Jan 2016 02:43:36 +0000 (19:43 -0700)]
rockchip: Use pwrseq for MMC start-up on jerry

This is defined in the device tree in Linux. Copy over the settings so that
this can be used instead of hard-coding the reset line.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: Correct the defconfig order
Simon Glass [Fri, 22 Jan 2016 02:43:35 +0000 (19:43 -0700)]
rockchip: Correct the defconfig order

This has got out of sequence somehow. Fix it.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: mmc: Use a pwrseq device if available
Simon Glass [Fri, 22 Jan 2016 02:43:34 +0000 (19:43 -0700)]
rockchip: mmc: Use a pwrseq device if available

Use the pwrseq uclass to find a suitable power sequence for the MMC device.
If this is enabled in the device tree, we will pick it up automatically.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: Convert the PMU IOMUX registers into an array
Simon Glass [Fri, 22 Jan 2016 02:43:33 +0000 (19:43 -0700)]
rockchip: Convert the PMU IOMUX registers into an array

This is easier to deal with when using generic code since it allows us to
use a register index instead of naming each register.

Adjust it, adding an enum to improve readability.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: Avoid using MMC code when not booting from MMC
Simon Glass [Fri, 22 Jan 2016 02:43:32 +0000 (19:43 -0700)]
rockchip: Avoid using MMC code when not booting from MMC

This saves some code space in SPL which is useful on jerry.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agodm: Add a power sequencing uclass
Simon Glass [Fri, 22 Jan 2016 02:43:31 +0000 (19:43 -0700)]
dm: Add a power sequencing uclass

Some devices need special sequences to be used when starting up. Add a
uclass for this. Drivers can be added to provide specific features as
needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agopower: Add support for RK808 regulators
Simon Glass [Fri, 22 Jan 2016 02:43:30 +0000 (19:43 -0700)]
power: Add support for RK808 regulators

Add regulator support for the RK808 PMIC. It integrated 4 BUCKs and 8 LDOs
all of which are supported by this driver.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agopower: Add base support for the RK808 PMIC
Simon Glass [Fri, 22 Jan 2016 02:43:29 +0000 (19:43 -0700)]
power: Add base support for the RK808 PMIC

This Rockchip PMIC provides features suitable for battery-powered
applications. It is commonly used with Rockchip SoCs.

Add a driver which provides register access. The regulator driver will use
this.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agodts: Bring in pinctrl device tree binding
Simon Glass [Fri, 22 Jan 2016 02:43:28 +0000 (19:43 -0700)]
dts: Bring in pinctrl device tree binding

Add this binding file since we now use it in U-Boot.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agodm: pmic: Add 'reg status' to show all regulators
Simon Glass [Fri, 22 Jan 2016 02:43:27 +0000 (19:43 -0700)]
dm: pmic: Add 'reg status' to show all regulators

It is convenient to be able to see the status of all regulators in a list.
Add this feature to the 'reg status' command.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agodm: pinctrl: Add a function to parse PIN_CONFIG flags
Simon Glass [Fri, 22 Jan 2016 02:43:26 +0000 (19:43 -0700)]
dm: pinctrl: Add a function to parse PIN_CONFIG flags

Add a function which produces a flags word from a few common PIN_CONFIG
settings. This is useful for simple pinctrl drivers that don't need to worry
about drive strength, etc.

Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agodm: core: Don't set pinctrl for pinctrl devices
Simon Glass [Fri, 22 Jan 2016 02:43:25 +0000 (19:43 -0700)]
dm: core: Don't set pinctrl for pinctrl devices

There is sort-of race condition when a pinctrl device is probed. The pinctrl
function is called which may end up using the same device as is being
probed. This results in operations being used before the device is actually
probed.

For now, disallow pinctrl operations on pinctrl devices while probing. An
alternative solution would be to move the operation to later in the
device_probe() function (for pinctrl devices only) but this needs more
thought.

Signed-off-by: Simon Glass <sjg@chromium.org>