Keystone2 Edison SoC uses the same keystone navigator, but
uses different NETCP PktDMA definitions. This patch adds
required definitions.
Acked-by: NVitaly Andrianov <vitalya@ti.com>
Acked-by: NMurali Karicheri <m-karicheri2@ti.com>
Signed-off-by: NIvan Khoronzhuk <ivan.khoronzhuk@ti.com>

The phy framework has function to get link, so use it
instead of own implementation.

There is no reason to check SGMII link while sending each
packet, phy link is enough. Check SGMII link only while
ethernet open.
Acked-by: NVitaly Andrianov <vitalya@ti.com>
Signed-off-by: NIvan Khoronzhuk <ivan.khoronzhuk@ti.com>

As MDIO bus has been added we can register PHYs with it.
After registration, the PHY driver will be probed according to the
hardware on board.

Startup PHY at the ethernet open.

Use phy_startup() instead of keystone_get_link_status() when eth open,
as it verifies PHY link inside and SGMII link is checked before.

For K2HK evm PHY configuration at init was absent, so don't enable
phy config at init for k2hk evm.
Acked-by: NVitaly Andrianov <vitalya@ti.com>
Signed-off-by: NIvan Khoronzhuk <ivan.khoronzhuk@ti.com>

Currently MDIO framework is not used to configure Ethernet PHY.
As result some of already implemented functions are duplicated.
So register MDIO bus in order to use it. On that stage it's just
registered, it'll be used as we start to use PHY framework.

Use mdio bus read/write/reset functions in the driver.
Acked-by: NVitaly Andrianov <vitalya@ti.com>
Signed-off-by: NIvan Khoronzhuk <ivan.khoronzhuk@ti.com>

Don't use mdio_enable twice while eth open. Also rename it to
keystone2_mdio_reset as more appropriate name.
Acked-by: NVitaly Andrianov <vitalya@ti.com>
Signed-off-by: NIvan Khoronzhuk <ivan.khoronzhuk@ti.com>

In case when several Ethernet ports are supported it's
convenient to see the number of phy that is not found.
Acked-by: NVitaly Andrianov <vitalya@ti.com>
Signed-off-by: NIvan Khoronzhuk <ivan.khoronzhuk@ti.com>

The cmu, comlane, lane configuration mechanism are similar for sub
systems as well such as PCI or sRIO, but they have different values
based on input clock and output bus rate. According to this compact
driver to simplify adding different configuration settings based
on clock and rate.
Signed-off-by: NIvan Khoronzhuk <ivan.khoronzhuk@ti.com>

SerDes driver is used by other sub systems like PCI, sRIO etc.
So modify it to be more general. The SerDes driver provides common
API's that can also be extended for other peripherals SerDes
configurations.
Signed-off-by: NHao Zhang <hzhang@ti.com>
Signed-off-by: NIvan Khoronzhuk <ivan.khoronzhuk@ti.com>

Enhance the driver to use cmu/comlane/lane specific configurations
instead of 1 big array of configuration.
Signed-off-by: NHao Zhang <hzhang@ti.com>
Signed-off-by: NIvan Khoronzhuk <ivan.khoronzhuk@ti.com>

This patch split the Keystone II SGMII SerDes related code from
Ethernet driver and create a separate SGMII SerDes driver.
The SerDes driver can be used by others keystone subsystems
like PCI, sRIO, so move it to driver/soc/keystone directory.

Add soc specific drivers directory like in the Linux kernel.
It is going to be used by keysotone soc specific drivers.
Signed-off-by: NHao Zhang <hzhang@ti.com>
Signed-off-by: NIvan Khoronzhuk <ivan.khoronzhuk@ti.com>

Remove unused tx_send_loop variable.

Removes duplicated get_link_status() call from the
keystone2_eth_send_packet().

The emac_gigabit_enable() is called at opening Ethernet and there is no
need to enable it on sending each packet. So remove that call
from keystone2_eth_send_packet() as well.

The calling of power/clock up functions are mostly the responsibility
of SoC/board code, so move these functions to appropriate place.
Signed-off-by: NIvan Khoronzhuk <ivan.khoronzhuk@ti.com>

With MAC_PHY sgmii configuration, u-boot checks PHY link status before
sending each packet. Increasing MDIO frequency increases overall tftp
speed. We set it to maximum 2.5MHz.
Acked-by: NMurali Karicheri <m-karicheri2@ti.com>
Signed-off-by: NVitaly Andrianov <vitalya@ti.com>
Signed-off-by: NIvan Khoronzhuk <ivan.khoronzhuk@ti.com>

The header file for the driver should be in correct place.
So move it to "arch/arm/include/asm/ti-common/keystone_net.h"
and correct driver's external dependencies. At the same time
align and correct some definitions.
Acked-by: NMurali Karicheri <m-karicheri2@ti.com>
Signed-off-by: NIvan Khoronzhuk <ivan.khoronzhuk@ti.com>

Currently the network driver is used only by k2hk evm board.
The k2hk SoC contains NETCP v1.0, but Keystone2 SoCs, like k2e
contain NETCP v1.5. So driver should be able to work with such kind
of NETCP. This commit adds this opportunity. The main difference in
masks and some registers, the logic is the same, so only definitions
should be changed. To differentiate between versions add KS2_NETCP_V1_0
and KS2_NETCP_V1_5. Also remove unused and no more needed defines.

The port number is specific for each board so move this parameter to
configuration.
Acked-by: NMurali Karicheri <m-karicheri2@ti.com>
Signed-off-by: NHao Zhang <hzhang@ti.com>
Signed-off-by: NIvan Khoronzhuk <ivan.khoronzhuk@ti.com>

This patch removes K2HK SOC specifc emac_regs structure, it uses
soc specific register offset to keep the network driver common across
all the Keystone II EVMs.
Acked-by: NMurali Karicheri <m-karicheri2@ti.com>
Signed-off-by: NHao Zhang <hzhang@ti.com>
Signed-off-by: NIvan Khoronzhuk <ivan.khoronzhuk@ti.com>

Currently keystone has misc_init_r where all DSPS are turned off
by default. So enable this function.
Signed-off-by: NIvan Khoronzhuk <ivan.khoronzhuk@ti.com>

This patch adds Keystone II Lammar (K2L) EVM board support.
Acked-by: NVitaly Andrianov <vitalya@ti.com>
Signed-off-by: NHao Zhang <hzhang@ti.com>
Signed-off-by: NIvan Khoronzhuk <ivan.khoronzhuk@ti.com>

This patches enables the On-chip Shared Ram clock domain for K2L SoC.
Signed-off-by: NHao Zhang <hzhang@ti.com>
Signed-off-by: NIvan Khoronzhuk <ivan.khoronzhuk@ti.com>

The initialization of PLLs is a part of board specific code, so
move it appropriate places.
Acked-by: NVitaly Andrianov <vitalya@ti.com>
Signed-off-by: NHao Zhang <hzhang@ti.com>
Signed-off-by: NIvan Khoronzhuk <ivan.khoronzhuk@ti.com>

This patch adds Keystone II Lamar (K2L) SoC specific definitions
to support MSMC cache coherency.
Acked-by: NVitaly Andrianov <vitalya@ti.com>
Signed-off-by: NHao Zhang <hzhang@ti.com>
Signed-off-by: NIvan Khoronzhuk <ivan.khoronzhuk@ti.com>

This patch adds clock definitions and commands to support Keystone II
K2L SOC.
Acked-by: NVitaly Andrianov <vitalya@ti.com>
Signed-off-by: NHao Zhang <hzhang@ti.com>
Signed-off-by: NIvan Khoronzhuk <ivan.khoronzhuk@ti.com>

This patch adds hardware definitions specific to Keystone II
Lamar (K2L) SoC.
Acked-by: NVitaly Andrianov <vitalya@ti.com>
Signed-off-by: NHao Zhang <hzhang@ti.com>
Signed-off-by: NIvan Khoronzhuk <ivan.khoronzhuk@ti.com>

The usage description of commands refers to headers of sources,
that is not correct. This patch is intended to fix it.
Also generalize code in order to reduce SoC dependent #ifdefs.
Signed-off-by: NIvan Khoronzhuk <ivan.khoronzhuk@ti.com>

Add support of usb xhci. xHCI controls all USB speeds of the Host
mode, that is, the SS through the SS PHY, as well as the HS, FS, and
LS through the USB2 PHY. xHCI replaces and supersedes all previous
host HCIs (HS-only EHCI, FS/LS OHCI and UHCI), and is therefore not
backwards compatible with any of them. The USB3SS’s USB Controller is
fully compliant with xHC.
Acked-by: NVitaly Andrianov <vitalya@ti.com>
Signed-off-by: NWingMan Kwok <w-kwok2@ti.com>
Signed-off-by: NIvan Khoronzhuk <ivan.khoronzhuk@ti.com>

The keystone_nav driver is general driver intended to be used for
working with queue manager and pktdma for different IPs like NETCP,
AIF, FFTC, etc. So the it's API shouldn't be named like it works only
with one of them, it should be general names. The names with prefix
like netcp_* rather do for drivers/net/keystone_net.c driver. So it's
good to generalize this driver to be used for different IP's and
delete confusion with real NETCP driver.

The current netcp_* functions of keystone navigator can be used for
other settings of pktdma, not only for NETCP. The API of this driver
is used by the keystone_net driver to work with NETCP, so net driver
also should be corrected. For convenience collect pkdma
configurations in drivers/dma/keystone_nav_cfg.c.
Acked-by: NVitaly Andrianov <vitalya@ti.com>
Signed-off-by: NIvan Khoronzhuk <ivan.khoronzhuk@ti.com>

The keystone_nav is used by drivers/net/keystone_net.c driver to
send and receive packets, but currently it's placed at keystone
arch sources. So it should be in the drivers directory also.
It's separate driver that can be used for sending and receiving
pktdma packets by others drivers also.

This patch just move this driver to appropriate directory and
doesn't add any functional changes.
Acked-by: NMurali Karicheri <m-karicheri2@ti.com>
Signed-off-by: NIvan Khoronzhuk <ivan.khoronzhuk@ti.com>

Use definitions in netcp_pktdma instead direct addresses.
The definitions can be set specifically for SoC, so there
is no reason to check SoC type while initialization.
Acked-by: NVitaly Andrianov <vitalya@ti.com>
Signed-off-by: NIvan Khoronzhuk <ivan.khoronzhuk@ti.com>

Use definitions in qm_config. The definitions can be set specifically
for SoC, so there is no reason to check SoC type while initialization.
Acked-by: NVitaly Andrianov <vitalya@ti.com>
Signed-off-by: NIvan Khoronzhuk <ivan.khoronzhuk@ti.com>

Add driver model support in this driver, using platform data provided by
the board.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Tested-by: NStephen Warren <swarren@wwwdotorg.org>

Adjust the driver so that leaf functions take a pointer to the serial port
register base. Put all the global configuration in the init function, and
use the same settings from then on.

This makes it much easier to move to driver model without duplicating the
code, since with driver model we use platform data rather than global
settings.

The driver is compiled with either the CONFIG_PL010_SERIAL or
CONFIG_PL011_SERIAL option and this determines the uart type. With driver
model this needs to come in from platform data, so create a new
CONFIG_PL01X_SERIAL config which brings in the driver, and adjust the
driver to support both peripheral variants.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Tested-by: NStephen Warren <swarren@wwwdotorg.org>

Convert the BCM2835 GPIO driver to use driver model, and switch over
Raspberry Pi to use this, since it is the only board.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Tested-by: NStephen Warren <swarren@wwwdotorg.org>
Acked-by: NStephen Warren <swarren@wwwdotorg.org>

Add a driver for the simple-bus nodes, which allows devices within these
nodes to be bound.
Signed-off-by: NSimon Glass <sjg@chromium.org>

Now that serial and GPIO are available for iMX.6, move cm_fx6 over as an
example.
Acked-by: NIgor Grinberg <grinberg@compulab.co.il>
Signed-off-by: NSimon Glass <sjg@chromium.org>
Acked-by: NNikita Kiryanov <nikita@compulab.co.il>

Add driver model support with this driver. Boards which use this driver
should define platform data in their board files.
Signed-off-by: NSimon Glass <sjg@chromium.org>

Add driver model support with this driver. In this case the platform data
is in the driver. It would be better to put this into an SOC-specific file,
but this is best attempted when more boards are moved over to use driver
model.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Acked-by: NIgor Grinberg <grinberg@compulab.co.il>

Use gpio_request for all the gpios that are utilized by various
subsystems in cm-fx6, and refactor the relevant init functions
so that all gpios are requested during board_init(), not during
subsystem init, thus avoiding the need to manage gpio ownership
each time a subsystem is initialized.

The new division of labor is:
During board_init() muxes are setup and gpios are requested.
During subsystem init gpios are toggled.

Cc: Igor Grinberg <grinberg@compulab.co.il>
Cc: Simon Glass <sjg@chromium.org>
Signed-off-by: NNikita Kiryanov <nikita@compulab.co.il>

GPIOs should be requested before use. Without this, driver model will
not permit the GPIO to be used.

Cc: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: NSimon Glass <sjg@chromium.org>
Signed-off-by: NNikita Kiryanov <nikita@compulab.co.il>
Acked-by: NIgor Grinberg <grinberg@compulab.co.il>

Since this function can fail, check its return value.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Tested-by: NNikita Kiryanov <nikita@compulab.co.il>

Avoid duplicating the code which deals with getc() and putc(). It is fairly
simple, but may expand later.
Signed-off-by: NSimon Glass <sjg@chromium.org>