From c9ef8ac1c794187e78434678bfdfa7e022bf847d Mon Sep 17 00:00:00 2001 From: Johannes Zink Date: Mon, 11 Jul 2022 16:12:46 +0200 Subject: ARM: i.MX7: add 96Boards Meerkat96 support This is a i.MX7D-based board with an upstream device tree. Add the necessary boilerplate to have barebox create an image. The memory settings are taken from U-Boot v2022.07-rc6. System reset requires pmic driver which is not available yet in barebox. Signed-off-by: Johannes Zink Link: https://lore.barebox.org/20220711141246.3331160-2-j.zink@pengutronix.de Signed-off-by: Sascha Hauer --- Documentation/boards/imx/meerkat96.rst | 43 ++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 Documentation/boards/imx/meerkat96.rst (limited to 'Documentation/boards') diff --git a/Documentation/boards/imx/meerkat96.rst b/Documentation/boards/imx/meerkat96.rst new file mode 100644 index 0000000000..7456aa857b --- /dev/null +++ b/Documentation/boards/imx/meerkat96.rst @@ -0,0 +1,43 @@ +Meerkat 96 +========== + +The Meerkat96 is a single board computer based on an i.MX7D SoC by NXP, +featuring a dual core ARM Cortex-A7 at 1 GHz and a Cortex-M4 at 266MHz +and 512 MB DRAM. For further details on the board's features check the +manufacturers page at https://www.96boards.org/product/imx7-96 + +Serial console +-------------- + +UART6 of the i.MX7D is broken out to Pinheader J3, on the Silkscreen +the Pins are labeled with B (Ground), W (UART 6 TX) and G (UART 6 RX). +If you use the UART-To-USB-Converter provided with the board, you can +just connect the Black jumper to B, the White to W and the Green to G. + +The UART uses 3.3V levels. + +Building Barebox +---------------- + +To build Barebox for the meerkat96 board do the following: + +.. code-block:: sh + + make ARCH=arm CROSS_COMPILE= mrproper + make ARCH=arm CROSS_COMPILE= imx_v7_defconfig + make ARCH=arm CROSS_COMPILE= + +Bringup +------- + +flash the resulting barebox-meerkat96.img to an sdcard at address 0. + +Make sure the pmic is set to power-on state by setting the dipswitch +SW3 on the boards bottom side to 1-1 (i.e. all switches on, which is +the factory default). + +Schematics +---------- + +Schematics are available at https://github.com/96boards/documentation/blob/master/consumer/imx7-96/hardware-docs/files/iMX7-96-schematics.pdf + -- cgit v1.2.1