[PATCH] ARM: i.MX8MP: add Koenig+Bauer Alphajet board

[Sascha Hauer]

On Thu, Jun 01, 2023 at 09:40:29AM +0200, Johannes Zink wrote:
> Add basic support for Koenig+Bauer Alphajet, based on a Congatec QMX8MP
> SoM with a i.MX8MP SoC in the Industrial Temperature Grade 4GB Variant,
> no inline ECC used.
> 
> Co-Developed-by: Juergen Borleis <j.borleis at pengutronix.de>
> Signed-off-by: Juergen Borleis <j.borleis at pengutronix.de>
> Signed-off-by: Johannes Zink <j.zink at pengutronix.de>
> ---
> Koenig+Bauer Alphajet is based on the Congatec QMX8MP, which is an
> i.MX8MP based SoC. Building barebox for this target requires the usual
> bl31 and lpddr4 training data in /firmware as described in [1].
> 
> The Congatec SoM is strapped and fused to boot from QSPI NOR flash,
> which can easily be updated using the registered barebox update handler.
> 
> [1] https://www.barebox.org/doc/latest/boards/imx/nxp-imx8mp-evk.html
> 
> Best regards
> Johannes
> ---
> Bootlog:
> 
> barebox 2023.05.0-00196-g24e000914af6-dirty #151 Thu Jun 1 09:36:02 CEST
> 2023
> 
> Board: Koenig+Bauer Alphajet
> deep-probe: supported due to kb,alphajet
> detected i.MX8MP revision 1.1
> i.MX8MP unique ID: 3a13efb20002aaff
> netconsole: registered as netconsole-1
> psci psci.of: detected version 1.1
> imx-esdhc 30b40000.mmc at 30b40000.of: registered as mmc0
> mmc0: detected SD card version 2.0
> mmc0: registered mmc0
> imx-esdhc 30b60000.mmc at 30b60000.of: registered as mmc2
> mmc2: detected MMC card version 5.1
> mmc2: registered mmc2.boot0
> mmc2: registered mmc2.boot1
> mmc2: registered mmc2
> mdio_bus: miibus0: probed
> xHCI xHCI0: USB XHCI 1.10
> state: New state registered 'state'
> state: Using bucket 0 at 0x00000000
> malloc space: 0xbfcfbe80 -> 0xffcfbe7f (size 1 GiB)
> found force-builtin environment, using defaultenv
> 
> Hit m for menu or any to stop autoboot:    3
> barebox at Koenig+Bauer Alphajet:/
> 
> Signed-off-by: Johannes Zink <j.zink at pengutronix.de>
> ---
>  arch/arm/boards/Makefile                           |    1 +
>  arch/arm/boards/kb-imx8mp-alphajet/Makefile        |    4 +
>  arch/arm/boards/kb-imx8mp-alphajet/board.c         |   60 +
>  .../flash-header-imx8mp-cgtqx8p.imxcfg             |   10 +
>  arch/arm/boards/kb-imx8mp-alphajet/lowlevel.c      |  127 ++
>  arch/arm/boards/kb-imx8mp-alphajet/lpddr4-timing.c | 1832 ++++++++++++++++++++
>  arch/arm/dts/Makefile                              |    1 +
>  arch/arm/dts/imx8mp-cgtqx8p.dtsi                   | 1060 +++++++++++
>  arch/arm/dts/imx8mp-koenigbauer-alphajet.dts       |  180 ++
>  arch/arm/mach-imx/Kconfig                          |   10 +
>  images/Makefile.imx                                |    5 +
>  11 files changed, 3290 insertions(+)
> 
> diff --git a/arch/arm/boards/Makefile b/arch/arm/boards/Makefile
> index 2877debad535..67b2fc07a395 100644
> --- a/arch/arm/boards/Makefile
> +++ b/arch/arm/boards/Makefile
> @@ -81,6 +81,7 @@ obj-$(CONFIG_MACH_NXP_IMX8MQ_EVK)		+= nxp-imx8mq-evk/
>  obj-$(CONFIG_MACH_NXP_IMX8MM_EVK)		+= nxp-imx8mm-evk/
>  obj-$(CONFIG_MACH_NXP_IMX8MN_EVK)		+= nxp-imx8mn-evk/
>  obj-$(CONFIG_MACH_NXP_IMX8MP_EVK)		+= nxp-imx8mp-evk/
> +obj-$(CONFIG_MACH_KB_ALPHAJET)			+= kb-imx8mp-alphajet/
>  obj-$(CONFIG_MACH_TQ_MBA8MPXL)			+= tqma8mpxl/
>  obj-$(CONFIG_MACH_OMAP343xSDP)			+= omap343xdsp/
>  obj-$(CONFIG_MACH_OMAP3EVM)			+= omap3evm/
> diff --git a/arch/arm/boards/kb-imx8mp-alphajet/Makefile b/arch/arm/boards/kb-imx8mp-alphajet/Makefile
> new file mode 100644
> index 000000000000..b3ae72be3e3b
> --- /dev/null
> +++ b/arch/arm/boards/kb-imx8mp-alphajet/Makefile
> @@ -0,0 +1,4 @@
> +# SPDX-License-Identifier:      GPL-2.0+
> +
> +obj-y += board.o
> +lwl-y += lowlevel.o lpddr4-timing.o
> diff --git a/arch/arm/boards/kb-imx8mp-alphajet/board.c b/arch/arm/boards/kb-imx8mp-alphajet/board.c
> new file mode 100644
> index 000000000000..78cc60e2c3b1
> --- /dev/null
> +++ b/arch/arm/boards/kb-imx8mp-alphajet/board.c
> @@ -0,0 +1,60 @@
> +// SPDX-License-Identifier: GPL-2.0
> +// SPDX-FileCopyrightText: 2023 Juergen Borleis, Pengutronix
> +// SPDX-FileCopyrightText: 2023 Johannes Zink, Pengutronix
> +
> +#include <asm/memory.h>
> +#include <bootsource.h>
> +#include <common.h>
> +#include <deep-probe.h>
> +#include <init.h>
> +#include <linux/phy.h>
> +#include <linux/sizes.h>
> +#include <mach/imx/bbu.h>
> +#include <mach/imx/generic.h>
> +#include <mach/imx/iomux-mx8mp.h>
> +#include <gpio.h>
> +#include <envfs.h>
> +
> +#define EQOS_PWR_PIN IMX_GPIO_NR(1, 5) /* ENET_PWREN# */
> +static void setup_ethernet_phy(void)
> +{
> +	u32 val;
> +
> +	of_device_ensure_probed_by_alias("gpio0");
> +
> +	if (gpio_direction_output(EQOS_PWR_PIN, 0))
> +	{
> +		pr_err("eqos phy power: failed to request pin\n");
> +		return;
> +	}

Should this be a fixed regulator in dt?

Sascha


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