Commit graph

5 commits

Author SHA1 Message Date
Marek Szyprowski
8bc780106c board: amlogic: odroid: add runtime detection of the N2/N2+/C4/HC4 variants
Use the ADC channel 1 to check the hardware revision of the board and
detect the N2 vs. N2+ and the C4 vs. HC4 variants. Each of them use
different dtb file, so adjust fdtfile environment variable to the
detected variant.

The ADC min/max values for each variant are taken from the vendor code,
adjusted to the 12-bit ADC driver operation mode (vendor code use 10-bit
mode).

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2021-02-10 10:00:51 +01:00
Marek Szyprowski
21a1bc6a90 ARM: dts: meson: switch TFLASH_VDD_EN pin to open drain on Odroid-C4
For the proper reboot Odroid-C4 board requires to switch TFLASH_VDD_EN
pin to the high impedance mode, otherwise the board is stuck in the
middle of loading early stages of the bootloader from SD card.

This can be achieved by using the OPEN_DRAIN flag instead if the
ACTIVE_HIGH, what will leave the pin in input to achieve high state (pin
has the pull-up) and solve the issue.

Suggested-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2020-12-18 11:50:27 +01:00
Neil Armstrong
c87eab8161 ARM: dts: meson-sm1: add u-boot specific MMC controller compatible
In order to enable the Amlogic SM1 MMC controller fix, we need to add a u-boot specific
MMC controller compatible.

This adds a new meson-sm1-u-boot.dtsi and reworks the other -u-boot.dtsi
to use this for SM1 based boards.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2020-11-12 14:31:29 +01:00
Neil Armstrong
d9c967792b ARM: dts: meson-sm1-odroid-c4: add ethernet PHY reset
The PHY needs a reset in order to be functionnal for U-Boot, add the old
PHY reset bindings for dwmac until we support the new bindings in the PHY node.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Tested-by: Anand Moon <linux.amoon@gmail.com>
2020-07-08 10:52:45 +02:00
Christian Hewitt
8888d83773 boards: amlogic: add Odroid C4 support
Odroid C4 is an Amlogic SM1 device, the board config and board documentation
are adapted from the Odroid-N2 support from the same vendor.

Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
[narmstrong: fix odroid-c4.rst typos and structure]
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Tested-by: Anand Moon <linux.amoon@gmail.com>
2020-07-08 10:52:45 +02:00