Skip to content

R
raspberrypi-kernel

openeuler / raspberrypi-kernel

通知 13
Star 1
Fork 0
R
raspberrypi-kernel
切换分支/标签
  1. 28 3月, 2017 1 次提交
    • B
      ARM: dts: bcm2835: fix uart0 pinctrl node names · ec8542cb
      由 Baruch Siach 提交于 
      Downstream kernel uses pins 32, 33 as UART0 (PL011) Rx/Tx to communicate with
the Bluetooth chip. So ALT3 of these pins is most likely not CTS/RTS. Change
the node name to reflect that. This matches section 6.2 "Alternative Function
Assignments" in the BCM2835 ARM Peripherals document.

With this change in place, adding

  &uart0 {
	 pinctrl-names = "default";
	 pinctrl-0 = <&uart0_gpio32 &gpclk2_gpio43>;
	 status = "okay";
  };

to bcm2837-rpi-3-b.dts does the right thing on my Raspberry Pi 3.

Pins 30, 31 are CTS/RTS of UART0 in alternate function 3. Rename uart0_gpio30
as well.

While at it, fix a little typo in a nearby comment.

Fixes: 21ff8439 ("ARM: dts: bcm283x: Define standard pinctrl groups in the gpio node.")
Acked-by: NStefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: NBaruch Siach <baruch@tkos.co.il>
Reviewed-by: NEric Anholt <eric@anholt.net>
      ec8542cb
  3. 18 3月, 2017 1 次提交
  5. 17 3月, 2017 1 次提交
  7. 07 3月, 2017 1 次提交
  9. 19 1月, 2017 1 次提交
  11. 12 11月, 2016 1 次提交
  13. 01 11月, 2016 1 次提交
  15. 18 10月, 2016 1 次提交
  17. 09 9月, 2016 1 次提交
    • I
      ARM: dts: Remove use of skeleton.dtsi from bcm283x.dtsi · 6b7b554d
      由 Ian Campbell 提交于 
      This file is included from DTS files under arch/arm64 too (via
broadcom/bcm2837-rpi-3-b.dts and broadcom/bcm2837.dtsi). There is a desire
not to have skeleton.dtsi for ARM64. See commit 3ebee5a2 ("arm64: dts:
kill skeleton.dtsi") for rationale for its removal.

As well as the addition of #*-cells also requires adding the device_type to
the rpi memory node explicitly.

Note that this change results in the removal of an empty /aliases node from
bcm2835-rpi-a.dtb and bcm2835-rpi-a-plus.dtb. I have no hardware to check
if this is a problem or not.

It also results in some reordering of the nodes in the DTBs (the /aliases
and /memory nodes come later). This isn't supposed to matter but, again,
I've no hardware to check if it is true in this particular case.
Signed-off-by: NIan Campbell <ijc@hellion.org.uk>
Acked-by: NMark Rutland <mark.rutland@arm.com>
Tested-by: NStefan Wahren <stefan.wahren@i2se.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Eric Anholt <eric@anholt.net>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Lee Jones <lee@kernel.org>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-rpi-kernel@lists.infradead.org
Cc: arm@kernel.org
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
      6b7b554d
  19. 25 8月, 2016 1 次提交
  21. 01 6月, 2016 1 次提交
    • L
      ARM: bcm2835: dt: Add the ethernet to the device trees · 6a937927
      由 Lubomir Rintel 提交于 
      The hub and the ethernet in its port 1 are hardwired on the board.

Compared to the adapters that can be plugged into the USB ports, this
one has no serial EEPROM to store its MAC. Nevertheless, the Raspberry Pi
has the MAC address for this adapter in its ROM, accessible from its
firmware.

U-Boot can read out the address and set the local-mac-address property of the
node with "ethernet" alias. Let's add the node so that U-Boot can do its
business.

Model B rev2 and Model B+ entries were verified by me, the hierarchy and
pid/vid pair for the Version 2 was provided by Peter Chen. Original
Model B is a blind shot, though very likely correct.
Signed-off-by: NLubomir Rintel <lkundrak@v3.sk>
Acked-by: NStephen Warren <swarren@wwwdotorg.org>
Signed-off-by: NEric Anholt <eric@anholt.net>
      6a937927
  23. 20 4月, 2016 1 次提交
  25. 19 4月, 2016 1 次提交
  27. 18 2月, 2016 1 次提交
  29. 03 2月, 2016 4 次提交
  31. 01 1月, 2016 2 次提交
  33. 23 10月, 2015 2 次提交
    • E
      ARM: bcm2835: Add the DDC I2C controller to the device tree. · 121432c7
      由 Eric Anholt 提交于 
      We need to use it for getting video modes over HDMI.
Signed-off-by: NEric Anholt <eric@anholt.net>
Acked-by: NStephen Warren <swarren@wwwdotorg.org>
      121432c7
    • E
      ARM: bcm2835: Switch to using the new clock driver support. · 94cb7f76
      由 Eric Anholt 提交于 
      This will give us the ability to set the pixel and HDMI state machine
clocks for the VC4 KMS driver, change the CPU frequency, and
potentially gate clocks in the future (once we also write a power
domain driver).  It also gives the uart an explicit clock reference,
so that we don't need to change the physical addresses of the old
fixed clk_bcm2835.c clocks for Raspberry Pi 2 port.

Two clocks get their frequencies updated as a result of this.  One is
uart's apb_pclk, which was previously accidentally grabbing the fixed
uart0_pclk due to the apb_pclk not having clk_register_clkdev()
called.  The uart doesn't seem to do anything with apb_pclk other than
make sure it's on, so that appears safe (also, as far as I can see,
the apb clock is actually the same as the VPU clock).  The other is
EMMC, which according to the docs was supposed to be in the 50-100Mhz
range, but it turns out the firmware needed to change to running it at
the 250Mhz core clock speed to avoid a bug in clock domain crossing.

Additionally, anything using BCM2835_CLOCK_VPU will now have a correct
clock rate if the user configures the boot-time core clock speed using
config.txt.
Signed-off-by: NEric Anholt <eric@anholt.net>
Acked-by: NStephen Warren <swarren@wwwdotorg.org>
      94cb7f76
  35. 15 10月, 2015 1 次提交
  37. 14 5月, 2015 4 次提交
  39. 26 9月, 2014 1 次提交
  41. 25 2月, 2014 1 次提交
    • S
      ARM: bcm2835: fix clock DT node names · b7c6c176
      由 Stephen Warren 提交于 
      DT nodes should be named according to the type of object that they
represent rather than the identity. DT nodes that contain a reg
property should include a unit address in their name. Fix these issues.

Add clock-output-names properties to the nodes so that the clocks get
named something meaningful. This works around the fact that the fixed
clock driver names clocks after the short node name, i.e. not including
the unit address.
Signed-off-by: NStephen Warren <swarren@wwwdotorg.org>
      b7c6c176
  43. 21 2月, 2014 1 次提交
    • S
      ARM: bcm2835: node name unit address cleanup · 25b2f1bd
      由 Stephen Warren 提交于 
      DT nodes that contain a reg property should include a unit address in
their name. Add the missing unit addresses.

The unit address in a node name must match the value in the reg property.
Fix the cases where they don't match.

Don't fix the /clocks/* node names yet; that causes problems the clock
driver to attempt to register multiple clocks with the same name, which
fails.
Signed-off-by: NStephen Warren <swarren@wwwdotorg.org>
      25b2f1bd
  45. 12 2月, 2014 4 次提交
  47. 03 1月, 2014 1 次提交
    • S
      ARM: bcm2835: add USB controller to device tree · 5631e7f4
      由 Stephen Warren 提交于 
      The BCM2835 SoC contains a DWC2 USB controller. Add this to the DT.

Set up the pin controller to fully enable the USB controller on the
Raspberry Pi. The GPIO setup works because the default output value for
GPIO 6 (LAN_RUN/n_reset) just happens to be 1, which enables the
USB/LAN chip.

Note that you'll need a U-Boot which enables power to the USB controller;
search for U-Boot patch "ARM: rpi_b: power on SDHCI and USB HW modules".
Signed-off-by: NStephen Warren <swarren@wwwdotorg.org>
Signed-off-by: NOlof Johansson <olof@lixom.net>
      5631e7f4
  49. 26 11月, 2013 1 次提交
  51. 03 6月, 2013 1 次提交
  53. 03 4月, 2013 1 次提交
  55. 12 3月, 2013 1 次提交
    • S
      ARM: bcm2835: add SPI device to DT · 6ce5f02e
      由 Stephen Warren 提交于 
      The BCM2835 has a single instance of the "SPI0"-type SPI master
controller. Instantiate it in the SoC .dtsi file, Don't enable it in
the Raspberry Pi board .dts file, since we have no idea what is actually
connected, and hence no idea what to set the bus clock rate to.
Signed-off-by: NStephen Warren <swarren@wwwdotorg.org>
      6ce5f02e
  57. 05 3月, 2013 1 次提交