Commit Graph

13 Commits

Author SHA1 Message Date
Rob Herring
abe60a3a7a ARM: dts: Kill off skeleton{64}.dtsi
Remove the usage of skeleton.dtsi in the remaining dts files. It was
deprecated since commit 9c0da3cc61 ("ARM: dts: explicitly mark
skeleton.dtsi as deprecated"). This will make adding a unit-address to
memory nodes easier.

The main tricky part to removing skeleton.dtsi is we could end up with
no /memory node at all when a bootloader depends on one being present. I
hacked up dtc to check for this condition.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Antoine Tenart <antoine.tenart@bootlin.com>
Acked-by: Alexandre TORGUE <alexandre.torgue@st.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Vladimir Zapolskiy <vz@mleia.com>
Tested-by: Kevin Hilman <khilman@baylibre.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Tested-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-01-30 17:30:31 +01:00
Vivek Unune
37f6130ec3 ARM: dts: BCM5301X: Make USB 3.0 PHY use MDIO PHY driver
Currently, the USB 3.0 PHY in bcm5301x.dtsi uses platform driver which
requires register range "ccb-mii" <0x18003000 0x1000>. This range
overlaps with MDIO cmd and param registers (<0x18003000 0x8>).
Essentially, the platform driver partly acts like a MDIO bus driver,
hence to use of this register range.

In some Northstar devices like Linksys EA9500, secondary switch is
connected via external MDIO. The only way to access and configure the
external switch is via MDIO bus. When we enable the MDIO bus in it's
current state, the MDIO bus and any child buses fail to register because
of the register range overlap.

On Northstar, the USB 3.0 PHY is connected at address 0x10 on the
internal MDIO bus. This change moves the usb3_phy node and makes it a
child node of internal MDIO bus.

Thanks to Rafał Miłecki's commit af850e14a7 ("phy: bcm-ns-usb3: add
MDIO driver using proper bus layer") the same USB 3.0 platform driver
can now act as USB 3.0 PHY MDIO driver.

Tested on Linksys Panamera (EA9500)

Signed-off-by: Vivek Unune <npcomplete13@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2018-07-09 08:12:11 -07:00
Rafał Miłecki
2b3db67ce4 ARM: dts: BCM5301X: Relicense most DTS files to the GPL 2.0+ / MIT
These files were created and ever touched by a group of three people
only: Dan, Hauke and me. They were licensed under GNU/GPL or ISC.

Introducing and discussing SPDX-License-Identifier resulted in a
conclusion that ISC is a not recommended license (see also a
license-rules.rst). Moveover an old e-mail from Alan Cox was pointed
which explained that dual licensing is a safer solution than depending
on a common compatibility belief.

This commit switches most of BCM5301X DTS files to dual licensing using:
1) GPL 2.0+ to make sure they are compatible with Linux kernel
2) MIT to allow sharing with more permissive projects
Both licenses belong to the preferred ones (see LICENSES/preferred/).

An attempt to relicense remaining files will be made separately and will
require approve from more/other developers.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: Dan Haab <dan.haab@luxul.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2018-05-03 17:51:18 -07:00
Rafał Miłecki
0b660259e9 ARM: dts: BCM5301X: Don't use nonexistent "default-off" LED trigger
Such a trigger doesn't exist in Linux and is not needed as LED is being
turned off by default. This could cause errors in LEDs core code when
trying to set default trigger.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2017-03-09 12:17:18 -08:00
Rafał Miłecki
cd84661314 ARM: dts: BCM5301X: Relicense DTS files I created to the ISC
It's preferred to have DT source files licensed under BSD compatible
license. All new BCM5301X DTS files use ISC so let's also relicense old
ones to it.

Except for me only Hauke was ever touched these files in his commit
9faa5960ee ("ARM: BCM5301X: add NAND flash chip description") and
commit bb1d8fba19 ("ARM: BCM5301X: add NAND flash chip description for
Asus RT-AC87U").

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2017-03-06 11:21:32 -08:00
Rafał Miłecki
a252ccd3d2 ARM: dts: BCM5301X: Specify all RAM by including an extra block
The first 128 MiB of RAM can be accessed using an alias at address 0x0.

In theory we could access whole RAM using 0x80000000 - 0xbfffffff range
(up to 1 GiB) but it doesn't seem to work on Northstar. For some reason
(hardware setup left by the bootloader maybe?) 0x80000000 - 0x87ffffff
range can't be used. I reproduced this problem on:
1) Buffalo WZR-600DHP2 (BCM47081)
2) Netgear R6250 (BCM4708)
3) D-Link DIR-885L (BCM47094)

So it seems we're forced to access first 128 MiB using alias at 0x0 and
the rest using real base address + 128 MiB offset which is 0x88000000.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Jon Mason <jon.mason@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2017-01-18 17:18:03 -08:00
Rafał Miłecki
7b790d3b29 ARM: dts: BCM5301X: Enable UART by default for BCM4708(1), BCM4709(4) & BCM53012
Every device tested so far got UART0 (at 0x18000300) working as serial
console. It's most likely part of reference design and all vendors use
it that way.

It seems to be easier to enable it by default and just disable it if we
ever see a device with different hardware design.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Jon Mason <jon.mason@broadcom.com>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2017-01-18 17:17:27 -08:00
Rafał Miłecki
5a6516ff13 ARM: BCM5301X: Enable earlycon on tested devices
This allows reporting & debugging problems occurring early in the boot
process.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2016-04-13 09:18:03 -07:00
Rafał Miłecki
0dfc7f6879 ARM: BCM5301X: Enable UART0 on tested devices
There are two possible UARTs so we have (both of) them disabled by
default. Override uart0 status on devices that were verified to use it.
In case of Netgear R6250 also drop an old (and invalid) overwrite. It
doesn't have uart1 connected.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2015-07-07 18:08:57 -07:00
Hauke Mehrtens
9faa5960ee ARM: BCM5301X: add NAND flash chip description
This adds the NAND flash chip description for a standard chip found
connected to this SoC. This makes use of generic Broadcom NAND driver
with the iProc interface.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2015-06-06 16:05:50 -07:00
Rafał Miłecki
8115a4e8d6 ARM: BCM5301X: Add LEDs for Buffalo devices
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2015-01-20 23:23:25 +01:00
Rafał Miłecki
78b745a4b0 ARM: BCM5301X: Drop unused poll-interval from gpio-keys
It was accidentally left (& copied & pasted all around) from our
experiments with gpio-keys-polled.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2015-01-20 23:23:24 +01:00
Rafał Miłecki
dd7733da69 ARM: BCM5301X: Add DT for Buffalo WZR-600DHP2
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2014-12-04 20:58:11 +01:00