This commit adds presence detect GPIO chips for various FRUs on
Rainier. Also, correct the I2C address for the tca9554.
Signed-off-by: NAlpana Kumari <alpankum@in.ibm.com>
Signed-off-by: NEddie James <eajames@linux.ibm.com>
Link: https://lore.kernel.org/r/20210329150020.13632-10-eajames@linux.ibm.comSigned-off-by: NJoel Stanley <joel@jms.id.au>

Rainier has two dual-chip modules and therefore four CFAMs with their
associated engines. Add these to the devicetree with the i2c busses
that have devices on them.
Signed-off-by: NEddie James <eajames@linux.ibm.com>
Signed-off-by: NJoel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20210329150020.13632-5-eajames@linux.ibm.comSigned-off-by: NJoel Stanley <joel@jms.id.au>

Add a gpio-keys-polled section to the Rainier device tree for the fan
presence signals on the PCA9552 I2C device on bus 7.
Signed-off-by: NBrandon Wyman <bjwyman@gmail.com>
Signed-off-by: NMatthew Barth <msbarth@linux.ibm.com>
Signed-off-by: NEddie James <eajames@linux.ibm.com>
Link: https://lore.kernel.org/r/20210329150020.13632-4-eajames@linux.ibm.comSigned-off-by: NJoel Stanley <joel@jms.id.au>

These LEDs are directly connected to the BMC's GPIO bank.
Signed-off-by: NVishwanatha Subbanna <vishwa@linux.ibm.com>
Signed-off-by: NEddie James <eajames@linux.ibm.com>
Link: https://lore.kernel.org/r/20210329150020.13632-3-eajames@linux.ibm.comSigned-off-by: NJoel Stanley <joel@jms.id.au>

dtschema for pca95xx expects GPIO hogs to end with 'hog' suffix.
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20210212162640.66677-2-krzk@kernel.org'
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

Determined by scope measurements at speed.
Signed-off-by: NAndrew Jeffery <andrew@aj.id.au>
Reviewed-by: NJoel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20201208012615.2717412-7-andrew@aj.id.auSigned-off-by: NJoel Stanley <joel@jms.id.au>

Make them lowercase.
Signed-off-by: NAndrew Jeffery <andrew@aj.id.au>
Reviewed-by: NJoel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20201002063414.275161-4-andrew@aj.id.auSigned-off-by: NJoel Stanley <joel@jms.id.au>

Some of the FSI-attached SPI controllers can't use the loop command
due to security requirements. Indicate this in the devicetree with
the restricted compatible string.
Signed-off-by: NEddie James <eajames@linux.ibm.com>
Link: https://lore.kernel.org/r/20201102194713.14812-1-eajames@linux.ibm.comSigned-off-by: NJoel Stanley <joel@jms.id.au>

Reserve a 1.5MiB region of memory to record kmsg dumps, console and
userspace message state into 16kiB ring-buffer slots. The sizing allows
for up to 16 dumps to be captured and read out.

Set max-reason to KMSG_DUMP_EMERG to capture bad-path reboots.
Signed-off-by: NAndrew Jeffery <andrew@aj.id.au>
Reviewed-by: NJoel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20201022014731.2035438-6-andrew@aj.id.auSigned-off-by: NJoel Stanley <joel@jms.id.au>

Add a device-tree for the Rainier 4U system. Change the model name
on the existing Rainier device-tree to 2U, and remove the two
extra power supplies that are only present on the 4U system. Also
add labels to the fan nodes for use in the 4U device-tree.
Signed-off-by: NEddie James <eajames@linux.ibm.com>
Reviewed-by: NAndrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20201028185647.14565-1-eajames@linux.ibm.comSigned-off-by: NJoel Stanley <joel@jms.id.au>

There's a veritable tug-of-war going on in the design, so disable one of
the warring parties.
Signed-off-by: NAndrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20200910031143.2997298-1-andrew@aj.id.auSigned-off-by: NJoel Stanley <joel@jms.id.au>

Set I2C bus 7 to multi-master mode and add the panel device that will
register as a slave.
Signed-off-by: NEddie James <eajames@linux.ibm.com>
Reviewed-by: NJoel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20200908200101.64974-6-eajames@linux.ibm.comSigned-off-by: NJoel Stanley <joel@jms.id.au>

Fix the VGA reserved memory node, and add the XDMA engine node,
enable it, and point it's memory region to the VGA memory.
Signed-off-by: NEddie James <eajames@linux.ibm.com>
Signed-off-by: NJoel Stanley <joel@jms.id.au>

Enable the second EHCI controller on the AST2600. Also add a line-name
for the GPIO that controls power to the USB port.

The power control is in place to allow the port to be disabled, for
those that are worried about rogue USB sticks.
Signed-off-by: NEddie James <eajames@linux.ibm.com>
Signed-off-by: NJoel Stanley <joel@jms.id.au>

Rainier uses the P10 processor so the OCC binding should reflect that.
Signed-off-by: NEddie James <eajames@linux.ibm.com>
Signed-off-by: NJoel Stanley <joel@jms.id.au>

The host processor contains i2c masters on each cfam.
Signed-off-by: NJoel Stanley <joel@jms.id.au>

Add the four SPI masters on each CFAM. Each master has four 128KB EEPROM
devices attached to it.
Signed-off-by: NEddie James <eajames@linux.ibm.com>
Signed-off-by: NJoel Stanley <joel@jms.id.au>

Adding pca9552 exposes the presence detect lines for the cards and
tca9554 exposes the presence details for the cards.
Signed-off-by: NJet Li <Jet.Li@ibm.com>
Signed-off-by: NJoel Stanley <joel@jms.id.au>

We have a 4-bus mux whose output is selected by two GPIO inputs. Wire it
up in the devicetree and ensure the output is enabled by hogging the
appropriate line.
Signed-off-by: NAndrew Jeffery <andrew@aj.id.au>
Signed-off-by: NJoel Stanley <joel@jms.id.au>

The GPIO on Q0 is used for resetting the CFAM of the processor that the
ASPEED master is connected to.

The signal is wired as active high on the first pass systems.
Reviewed-by: NAndrew Jeffery <andrew@aj.id.au>
Signed-off-by: NJoel Stanley <joel@jms.id.au>

GPIOP7 is used in the Rainier design to manage the state of a
microcontroller elsewhere in the system but its ball, Y23, is the
driver of the heartbeat LED on the ast2600-evb and the SoC defaults Y23
at power-on to the pulse-train behaviour used to drive the LED. This
causes much confusion for the micro in the Rainier system, so hog the
line as early as possible.
Signed-off-by: NAndrew Jeffery <andrew@aj.id.au>
Signed-off-by: NJoel Stanley <joel@jms.id.au>

The hub FSI master can access the cfams on two other processors. Reflect
this by adding a second cfam to the first hub description.
Signed-off-by: NEddie James <eajames@linux.ibm.com>
Tested-by: NAndrew Geissler  <geissonator@yahoo.com>
Signed-off-by: NJoel Stanley <joel@jms.id.au>

Rainier uses GPIO B6 as the checkstop GPIO. Define the line-name
so that this GPIO can be found by name.
Signed-off-by: NBen Tyner <ben.tyner@ibm.com>
Signed-off-by: NJoel Stanley <joel@jms.id.au>

Remove the second as it doesn't exist.
Reviewed-by: NAndrew Jeffery <andrew@aj.id.au>
Signed-off-by: NJoel Stanley <joel@jms.id.au>

The BMC uses reserves the top 16MB of memory for the host to use for VGA
or PCIe communication.
Reviewed-by: NEddie James <eajames@linux.ibm.com>
Signed-off-by: NJoel Stanley <joel@jms.id.au>

Name the GPIOs to help userspace work with them. The names describe the
functionality the lines provide, not the net or ball name. This makes it
easier to share userspace code across different systems and makes the
use of the lines more obvious.
Signed-off-by: NAndrew Geissler <geisonator@yahoo.com>
Signed-off-by: NJoel Stanley <joel@jms.id.au>

Regulators will be dynamically configured and monitored from userspace.
Signed-off-by: NMatthew Barth <msbarth@linux.ibm.com>
Reviewed-by: NEddie James <eajames@linux.ibm.com>
Reviewed-by: NJim Wright <wrightj@linux.vnet.ibm.com>
Signed-off-by: NJoel Stanley <joel@jms.id.au>

This adds the description of the Power CPUs that are attached to the
BMC.

Without this userspace will see the '/dev/scom66' style layout.
Reviewed-by: NEddie James <eajames@linux.ibm.com>
Signed-off-by: NJoel Stanley <joel@jms.id.au>

All 16 pins of the PCA9552 at 7-bit address 0x61 should be set as type
GPIO.
Signed-off-by: NMatthew Barth <msbarth@linux.ibm.com>
Signed-off-by: NJoel Stanley <joel@jms.id.au>

The second VUART is used to expose multiplexed, non-hypervisor consoles.
Signed-off-by: NAndrew Jeffery <andrew@aj.id.au>
Signed-off-by: NJoel Stanley <joel@jms.id.au>

Change Rainier device tree to use UCD90320 chip and only bind driver to
port which excepts PMBus commands.
Signed-off-by: NJim Wright <wrightj@linux.vnet.ibm.com>
Signed-off-by: NJoel Stanley <joel@jms.id.au>

Rainier can use either version of the IBM CFFPS, so don't set the
version in the devicetree so the driver can detect it automatically.
Signed-off-by: NEddie James <eajames@linux.ibm.com>
Signed-off-by: NJoel Stanley <joel@jms.id.au>

The PCA9552 used for fan fault and presence information is at address
61h, not 60h.

Fixes: 2efc118c ("ARM: dts: aspeed: rainier: Add i2c devices")
Signed-off-by: NBrandon Wyman <bjwyman@gmail.com>
Reviewed-by: NEddie James <eajames@linux.ibm.com>
Signed-off-by: NJoel Stanley <joel@jms.id.au>

This is a revert of "ARM: dts: aspeed: rainier: Add i2c devices", which
was already applied to the tree.

Fixes: 9c44db70 ("ARM: dts: aspeed: rainier: Add i2c devices")
Reviewed-by: NJim Wright <wrightj@linux.vnet.ibm.com>
Tested-by: NJim Wright <wrightj@linux.vnet.ibm.com>
Signed-off-by: NJoel Stanley <joel@jms.id.au>

Add in a gpio-keys section to the Rainier device tree source, add in the
power supply presence GPIOs.
Signed-off-by: NBrandon Wyman <bjwyman@gmail.com>
Reviewed-by: NEddie James <eajames@linux.ibm.com>
Signed-off-by: NJoel Stanley <joel@jms.id.au>

Fix the size of the Proc VRM card's eeprom used for vpd storage. The
size is changed from 64Kbit to 128Kbit.
Signed-off-by: NJinu Joy Thomas <jinu.joy.thomas@in.ibm.com>
Reviewed-by: NSantosh Puranik <santosh.puranik.ibm@gmail.com>
Signed-off-by: NJoel Stanley <joel@jms.id.au>

Like most OpenPower machines the VUART is expected to be at /dev/ttyS5
for communication with the host over LPC.
Signed-off-by: NBrad Bishop <bradleyb@fuzziesquirrel.com>
Signed-off-by: NJoel Stanley <joel@jms.id.au>

Added eeproms for the below VPD devices
- BMC
- TPM
- System Planar
- DCM 0 VRM
- DCM 1 VRM
- Base Op panel
- Lcd Op panel
- DASD (All)
- PCIe Cards (All)
Signed-off-by: NJinu Joy Thomas <jinu.joy.thomas@in.ibm.com>
Reviewed-by: NSantosh Puranik <santosh.puranik.ibm@gmail.com>
Signed-off-by: NJoel Stanley <joel@jms.id.au>

We need to ungate RCLK on AST2500- and AST2600-based platforms for RMII
to function. RMII interfaces are commonly used for NCSI.
Signed-off-by: NAndrew Jeffery <andrew@aj.id.au>
Signed-off-by: NJoel Stanley <joel@jms.id.au>

Add fan controllers, regulators, temperature sensors, power supplies
and regulators.
Acked-by: NAndrew Jeffery <andrew@aj.id.au>
Signed-off-by: NBrad Bishop <bradleyb@fuzziesquirrel.com>
Signed-off-by: NJoel Stanley <joel@jms.id.au>