Commit Graph

11 Commits

Author SHA1 Message Date
Neil Armstrong
e9bc0765cc arm64: dts: meson-g12a: enable DVFS on G12A boards
Enable DVFS for the U200, SEI520 and X96-Max Amlogic G12A based board
by setting the clock, OPP and supply for each CPU cores.

The CPU cluster power supply can achieve 0.73V to 1.01V using a PWM
output clocked at 800KHz with an inverse duty-cycle.

DVFS has been tested by running the arm64 cpuburn at [1] and cycling
between all the possible cpufreq translations and checking the final
frequency using the clock-measurer, script at [2].

[1] https://github.com/ssvb/cpuburn-arm/blob/master/cpuburn-a53.S
[2] https://gist.github.com/superna9999/d4de964dbc0f84b7d527e1df2ddea25f

Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Tested-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-08-09 11:07:03 -07:00
Jerome Brunet
de03860151 arm64: dts: meson: u200: add internal network
The u200 is the main mother board for the S905D2. It can provide
both the internal and external network. However, by default the
resistance required for the external RGMII bus are not fitted, so
enable the internal PHY.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-11 15:50:01 -07:00
Jerome Brunet
664065217d arm64: dts: meson: u200: enable i2c busses
Add the 3 i2c busses present on the u200 reference design.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-05-21 10:58:41 -07:00
Jerome Brunet
b5446af48e arm64: dts: meson: u200: add sd and emmc
Enable eMMC and SDCard on the g12a u200 board

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-05-21 10:58:41 -07:00
Jerome Brunet
ebf4a5f6a5 arm64: dts: meson: u200: consistently order nodes
Like order boards, order nodes by address then node names then aliases.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-05-21 10:58:40 -07:00
Neil Armstrong
919ccb30cf arm64: dts: meson-g12a-u200: enable IR decoder
Add support for the IR decoder input on the U200 Reference Design board.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl<martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-05-21 10:58:39 -07:00
Neil Armstrong
659f2563d3 arm64: dts: meson-g12a-u200: Add support for Video Display
This patch adds the HDMI, CVBS and CEC attributes and nodes to support
full display on the U200 Reference Design.

AO-CEC-B is used by default and AO-CEC-A is disabled.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-04-16 11:21:46 -07:00
Neil Armstrong
8ad7624453 arm64: dts: meson-g12a-u200: Enable USB
Enable the USB2 OTG and USB3 Host ports on the S905D2 Reference Design.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-04-15 17:33:32 -07:00
Jerome Brunet
aa77657b01 arm64: dts: meson-g12a-u200: add regulators
Add system regulators for the S905D U200 reference design.

Add some regulators. Still missing
* VDD_EE (0.8V - PWM controlled)
* VDD_CPU (PWM controlled)

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-04-15 17:33:13 -07:00
Neil Armstrong
638914212a arm64: dts: meson-g12a-u200: add uart_AO pinctrl
Add pinctrl on the always-enabled debug UART AO.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-03-22 16:13:40 -07:00
Jianxin Pan
9c8c52f7cb arm64: dts: meson-g12a: add initial g12a s905d2 SoC DT support
Try to add basic DT support for the Amlogic's Meson-G12A S905D2 SoC,
which describe components as follows: Reserve Memory, CPU, GIC, IRQ,
Timer, UART. It's capable of booting up into the serial console.

Signed-off-by: Jianxin Pan <jianxin.pan@amlogic.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2018-09-26 02:04:58 -07:00