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. 04 11月, 2014 1 次提交
  3. 26 9月, 2014 1 次提交
    • A
      ARM: at91: fix nommu build regression · e138e3ae
      由 Arnd Bergmann 提交于 
      The newly introduced support for SAMA5D4 added access to the
'AT91_ALT_BASE_SYS' register area, but failed to define the
symbols in the case when CONFIG_MMU is disabled.

We really should not hardwire addresses like this any more,
but as a small fixup, this patch just adds the missing
definitions for the nommu case, which gets at91x40_defconfig
and any configuration of sam9 and sama5 with MMU disabled
back to work.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Fixes: 726d32bf ("ARM: at91: SAMA5D4 SoC detection code and low ...")
      e138e3ae
  5. 22 9月, 2014 2 次提交
  7. 05 9月, 2014 1 次提交
    • M
      pinctrl: at91: add drive strength configuration · 4334ac2d
      由 Marek Roszko 提交于 
      The SAMA5 and SAM9x5 series both have drive strength
options for the PIOs. This patch adds the ability to set
one of three hardware options for drive strengths of low,
medium or high for the each pin. The actual current output
of the chip based on the setting is defined in the datasheets
and varies per pins separate from banks and with supply
voltage.

This patch adds three new dt-bindings that allow setting the
strength when configuring pins. By default, no change will
be made to the drive strength of a pin from its reset value.
Due to the difference between the register addresses of the
SAMA5 and SAM9x5 series, a new sama5d3-pinctrl id was added.
Signed-off-by: NMarek Roszko <mark.roszko@gmail.com>
Acked-by: NNicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
      4334ac2d
  9. 08 5月, 2014 3 次提交
  11. 21 12月, 2013 1 次提交
  13. 20 12月, 2013 1 次提交
  15. 11 12月, 2013 1 次提交
  17. 02 12月, 2013 1 次提交
  19. 15 11月, 2013 1 次提交
    • J
      ARM: at91: fix hanged boot due to early rtc-interrupt · 6de714c2
      由 Johan Hovold 提交于 
      Make sure the RTC-interrupts are masked at boot by adding a new helper
function to be used at SOC-init.

This fixes hanged boot on all AT91 SOCs with an RTC (but RM9200), for
example, after a reset during an RTC-update or if an RTC-alarm goes off
after shutdown (e.g. when using RTC wakeup).

The RTC and RTT-peripherals are powered by backup power (VDDBU) (on all
AT91 SOCs but RM9200) and are not reset on wake-up, user, watchdog or
software reset. This means that their interrupts may be enabled during
early boot if, for example, they where not disabled during a previous
shutdown (e.g. due to a buggy driver or a non-clean shutdown such as a
user reset). Furthermore, an RTC or RTT-alarm may also be active.

The RTC and RTT-interrupts use the shared system-interrupt line, which
is also used by the PIT, and if an interrupt occurs before a handler
(e.g. RTC-driver) has been installed this leads to the system interrupt
being disabled and prevents the system from booting.

Note that when boot hangs due to an early RTC or RTT-interrupt, the only
way to get the system to start again is to remove the backup power (e.g.
battery) or to disable the interrupt manually from the bootloader. In
particular, a user reset is not sufficient.
Signed-off-by: NJohan Hovold <jhovold@gmail.com>
Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>
Cc: stable@vger.kernel.org # 3.11.x
      6de714c2
  21. 18 10月, 2013 1 次提交
    • J
      iio: at91: introduce touch screen support in iio adc driver · c8b11de0
      由 Josh Wu 提交于 
      AT91 ADC hardware integrate touch screen support. So this patch add touch
screen support for at91 adc iio driver.
To enable touch screen support in adc, you need to add the dt parameters:
  1. which type of touch are used? (4 or 5 wires), sample period time.
  2. correct pressure detect threshold value.

In the meantime, since touch screen will use a interal period trigger of adc,
so it is conflict to other hardware triggers. Driver will disable the hardware
trigger support if touch screen is enabled.

This driver has been tested in AT91SAM9X5-EK and SAMA5D3x-EK.
Signed-off-by: NJosh Wu <josh.wu@atmel.com>
Acked-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
CC: devicetree@vger.kernel.org
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
      c8b11de0
  23. 30 8月, 2013 2 次提交
  25. 22 8月, 2013 4 次提交
  27. 26 6月, 2013 1 次提交
  29. 24 5月, 2013 1 次提交
  31. 09 4月, 2013 1 次提交
  33. 08 4月, 2013 1 次提交
  35. 03 4月, 2013 1 次提交
  37. 26 3月, 2013 1 次提交
  39. 14 3月, 2013 1 次提交
  41. 11 1月, 2013 1 次提交
  43. 07 12月, 2012 1 次提交
  45. 20 11月, 2012 1 次提交
  47. 16 11月, 2012 1 次提交
  49. 06 11月, 2012 9 次提交