The PMIC is often a dependency for other devices, so make sure
it's initialized early. While at it, merge the spi/i2c registration
into a single initcall and use IS_ENABLED instead of ifdefs.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Some boards have to initialize the PMIC before other devices can
be initialized. This requires three levels of initcalls: one level
in which the PMIC is probed, one in which the board can call mc13xxx_get()
and the third one to initialize the PMIC dependent devices.
Allow to register a callback which is called once the PMIC is initialized.
This way mc13xxx_get() is no longer necessary and the number of required
initcalls levels is reduced to two.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
These are special groups to configure pad properties
such as drive strength and slew rate for a group of
pads.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Needed for SD cards connected to sdmmc1 or sdmmc3
to work properly.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Some peripherals have a double wide divider in front
of them.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Now that we have a proper reset controller, it
isn't necessary anymore to keep the device reset
hack coupled to the clock.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The console devices are the only ones that can't
use the reset controller properly, as they get
registered from platform code. Reset those devices
from the clock controller.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Allows us to drop the hack in the clock controller
and implement proper reset at device level.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add stripped sown version of the reset controller
framework from the Linux kernel.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Instead of keeping track of the mac_control register value and
only writing to it when it changed just always write it. This is
more safe anyway since the mac_control register content is altered
in the soft_reset functions.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Since the cpsw has two slaves which handle one network interface
each the slave number is interesting during debugging. use the
slave device for dev_dbg.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This makes it possible to directly call dev_dbg and friends
on the slave. Also the ethernet aliases in the devicetree
now match the devices.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The OMAP SPI core allows swapping MISO/MOSI and some boards are
wired up that way, so add a property to swap the lines.
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
This patch does probably too much, but it's hard (and very
cumbersome/time consuming) to break it out. What is does is this:
* each command has one short description, e.g. "list MUX configuration"
* made sure the short descriptions start lowercase
* each command has one usage. That string contains just the
options, e.g. "[-npn]". It's not part of the long help text.
* that is, it doesn't say "[OPTIONS]" anymore, every usable option
is listed by character in this (short) option string (the long
description is in the long help text, as before)
* help texts have been reworked, to make them
- sometimes smaller
- sometimes describe the options better
- more often present themselves in a nicer format
* all long help texts are now created with BUSYBOX_CMD_HELP_
macros, no more 'static const __maybe_unused char cmd_foobar_help[]'
* made sure the long help texts starts uppercase
* because cmdtp->name and cmdtp->opts together provide the new usage,
all "Usage: foobar" texts have been removed from the long help texts
* BUSYBOX_CMD_HELP_TEXT() provides the trailing newline by itself, this
is nicer in the source code
* BUSYBOX_CMD_HELP_OPT() provides the trailing newline by itself
* made sure no line gets longer than 77 characters
* delibertely renamed cmdtp->usage, so that we can get compile-time
errors (e.g. in out-of-tree modules that use register_command()
* the 'help' command can now always emit the usage, even without
compiled long help texts
* 'help -v' gives a list of commands with their short description, this
is similar like the old "help" command before my patchset
* 'help -a' gives out help of all commands
Signed-off-by: Holger Schurig <holgerschurig@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The old output of "help" was just producing a long list, that usually
scrolled of the screen (even on a X11 terminal). This list is more
compact, and also sorted by groups.
The old output format (plus grouping) is now available with 'help -v'.
Example:
Information commands:
?, devinfo, help, iomem, meminfo, version
Boot commands:
boot, bootm, go, loadb, loads, loadx, loady, saves, uimage
...
Signed-off-by: Holger Schurig <holgerschurig@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
With CONFIG_PARTITION_NEED_MTD enabled we use mtd rather than devfs
directly to create partitions on mtd devices. Since:
| commit b32cd8df87
| Author: Sascha Hauer <s.hauer@pengutronix.de>
| Date: Wed Apr 9 15:49:32 2014 +0200
|
| mtd: nand: bb: use mtd api directly
|
| The devfs layer just adds an addition indirection between mtd
| and the bb devices with no purpose. Drop it.
|
| Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The bad block aware device creation doesn't work if this option
is disabled. With this we remove CONFIG_PARTITION_NEED_MTD and always
use mtd partitions on mtd devices.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
When a devicenode has invalid pinctrl settings then printing the
offending node helps debugging it.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
RX DMA Head Descriptor Pointer can get 0 when there is a lot of traffic,
which results in a timeout error. A good way to provoke this error is by
sending lots of ARP requests. This patch makes sure that the RX DMA Head
Descriptor Pointer is set.
The origin driver, from which this is derived, already contains this fix.
Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Clock gates having the CLK_GATE_HIWORD_MASK flag set use the upper 16
bits of the register as a "write enable" mask for the value in the
lower 16 bits.
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
To avoid code duplication and make easier to introduce new flags.
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This adds a clk_gate_flags argument to clock gate creation functions
to allow the introduction of new clock gate modifiers.
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch adds support for the Synopsys 10/100 Mbps Ethernet MAC used
on some ARC devices and on Rockchip SoCs.
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
We need list_for_each_entry_safe in dev_remove_bb_dev since the
list entries are removed during iteration over the list.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reported-by: Alexander Aring <alex.aring@gmail.com>
Provide minimal regulator support. Only supported operations are enabling
and disabling regulators. Association of devices with their regulators is
limited to devicetree only. If regulator support is disabled the API expands
to static inline stubs so consumers can still use the API.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
When a mtd device can have bad blocks we want to create a
bb device, so do this automatically. This allows us to
drop bb device creation from the environment.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This refactors the code so that we get a mtd_add_bb which can
be used to create a bb dev on a mtd_info.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The devfs layer just adds an addition indirection between mtd
and the bb devices with no purpose. Drop it.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Instead of just allowing to specify an OF path with additional
partname: property allow to specify a phandle to the partition
directly.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The upstream dts files do not contain the register shift. As
we have Omap specific init code anyway we can just set the register
shift from there instead of relying on the devicetree properties.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Also remove the unnecessary check for xzalloc failure.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
No need to store init() function in the driver private structure
since it called only once during startup.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Tegra3 has some new clocks and resets. The new
registers don't form a linear range with the
old ones.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Missed OR, so we never enabled failure interrupt
status bits, which prevented the eMMC detect logic
to work properly.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Tegra is DT only, so remove platform code.
While at it remove unused struct.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
From 4ea2bd2e1ca18136d7cfd61643bc8d8187b1495f Mon Sep 17 00:00:00 2001
From: Owen Kirby <osk@exegin.com>
Date: Wed, 16 Apr 2014 17:45:18 -0700
Subject: [PATCH] Fix AT91 UDC driver on boards without vbus.
While porting Barebox to one of our boards, we found that the AT91 UDC driver
will fail to connect to USB hosts, and will spam the console with errors if
the VBUS pin isn't connected.
Signed-off-by: Owen Kirby <osk@exegin.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The error messages would dereference the just checked NULL
ptr. As those messages don't add much value without further
info just remove them.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This most likely doesn't fix any real bugs, but it's the
right thing to do and reduces the noise level with static
checkers.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
of_get_named_gpio_flags used to return 'ret' when no device
is found, but 'ret' is zero here. Return an error instead.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The current implementation fakes a memory-mapped I/O device
at 0x3f8 and 0x2f8, then uses platform read/write functions
to do the actual reading and writing. These platform functions
only exist for the x86 platform; better to move the I/O
routines into the driver and have the driver request I/O ports
using request_ioport_region.
Signed-off-by: Michel Stam <michel@reverze.net>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
'ret' is only initialized when info->fbops->fb_activate_var exists, so
only use it in this case.
Reported-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Direction for CS GPIOs (for some targets) is undefined.
This patch fixes this issue.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Rework the current framework so that I/O mapped I/O resources are
also possible.
Signed-off-by: Michel Stam <michel@reverze.net>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Allows to make relationship between DT and driver
more explicit and avoids duplication.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Sascha Hauer
Franck Jullien
Holger Schurig
Lucas Stach
Jan Luebbe
Christoph Fritz
Beniamino Galvani
Alexander Shiyan
Antony Pavlov
Owen Kirby
Michel Stam
Wjatscheslaw Stoljarski