On Wed, Feb 6, 2019 at 10:42 AM Christian Hemp <christian.hemp@xxxxxxxxx> wrote:
>
> The phyCORE-i.MX8M aka PCL-066 is a SoM containing a i.MX8M SoC.
>
> phyCORE-i.MX8M:
> - 1GB LPDDR4 RAM
> - eMMC
> - microSD
> - Ethernet
>
> Signed-off-by: Christian Hemp <christian.hemp@xxxxxxxxx>
> ---
> arch/arm/boards/Makefile | 1 +
> arch/arm/boards/phytec-som-imx8m/.gitignore | 1 +
> arch/arm/boards/phytec-som-imx8m/Makefile | 2 +
> arch/arm/boards/phytec-som-imx8m/board.c | 55 +
> arch/arm/boards/phytec-som-imx8m/ddr.h | 28 +
> arch/arm/boards/phytec-som-imx8m/ddr_init.c | 225 +++++
> .../boards/phytec-som-imx8m/ddrphy_train.c | 947 ++++++++++++++++++
> .../flash-header-phycore-imx8mq.imxcfg | 5 +
> arch/arm/boards/phytec-som-imx8m/lowlevel.c | 127 +++
> arch/arm/configs/imx_v8_defconfig | 2 +
> arch/arm/dts/Makefile | 1 +
> arch/arm/dts/imx8mq-phytec-phycore-som.dts | 328 ++++++
> arch/arm/mach-imx/Kconfig | 7 +
> images/Makefile.imx | 5 +
> 14 files changed, 1734 insertions(+)
> create mode 100644 arch/arm/boards/phytec-som-imx8m/.gitignore
> create mode 100644 arch/arm/boards/phytec-som-imx8m/Makefile
> create mode 100644 arch/arm/boards/phytec-som-imx8m/board.c
> create mode 100644 arch/arm/boards/phytec-som-imx8m/ddr.h
> create mode 100644 arch/arm/boards/phytec-som-imx8m/ddr_init.c
> create mode 100644 arch/arm/boards/phytec-som-imx8m/ddrphy_train.c
> create mode 100644 arch/arm/boards/phytec-som-imx8m/flash-header-phycore-imx8mq.imxcfg
> create mode 100644 arch/arm/boards/phytec-som-imx8m/lowlevel.c
> create mode 100644 arch/arm/dts/imx8mq-phytec-phycore-som.dts
>
> diff --git a/arch/arm/boards/Makefile b/arch/arm/boards/Makefile
> index ab5191fe0..b39bbe8c2 100644
> --- a/arch/arm/boards/Makefile
> +++ b/arch/arm/boards/Makefile
> @@ -95,6 +95,7 @@ obj-$(CONFIG_MACH_PCM049) += phytec-phycore-omap4460/
> obj-$(CONFIG_MACH_PHYTEC_SOM_AM335X) += phytec-som-am335x/
> obj-$(CONFIG_MACH_PHYTEC_SOM_IMX6) += phytec-som-imx6/
> obj-$(CONFIG_MACH_PHYTEC_PHYCORE_IMX7) += phytec-phycore-imx7/
> +obj-$(CONFIG_MACH_PHYTEC_SOM_IMX8M) += phytec-som-imx8m/
> obj-$(CONFIG_MACH_PLATHOME_OPENBLOCKS_AX3) += plathome-openblocks-ax3/
> obj-$(CONFIG_MACH_PLATHOME_OPENBLOCKS_A6) += plathome-openblocks-a6/
> obj-$(CONFIG_MACH_PM9261) += pm9261/
> diff --git a/arch/arm/boards/phytec-som-imx8m/.gitignore b/arch/arm/boards/phytec-som-imx8m/.gitignore
> new file mode 100644
> index 000000000..ef13747c9
> --- /dev/null
> +++ b/arch/arm/boards/phytec-som-imx8m/.gitignore
> @@ -0,0 +1 @@
> +*.ddr-phy-fw*
> diff --git a/arch/arm/boards/phytec-som-imx8m/Makefile b/arch/arm/boards/phytec-som-imx8m/Makefile
> new file mode 100644
> index 000000000..2995f06f0
> --- /dev/null
> +++ b/arch/arm/boards/phytec-som-imx8m/Makefile
> @@ -0,0 +1,2 @@
> +obj-y += board.o
> +lwl-y += lowlevel.o ddr_init.o ddrphy_train.o
> diff --git a/arch/arm/boards/phytec-som-imx8m/board.c b/arch/arm/boards/phytec-som-imx8m/board.c
> new file mode 100644
> index 000000000..7779946d1
> --- /dev/null
> +++ b/arch/arm/boards/phytec-som-imx8m/board.c
> @@ -0,0 +1,55 @@
> +/*
> + * Copyright (C) 2018 Christian Hemp
> + *
> + * This program is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU General Public License as
> + * published by the Free Software Foundation; either version 2 of
> + * the License, or (at your option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> + * along with this program; if not, write to the Free Software
> + * Foundation.
> + *
> + */
> +
> +#include <asm/memory.h>
> +#include <bootsource.h>
> +#include <environment.h>
> +#include <common.h>
> +#include <init.h>
> +#include <linux/sizes.h>
> +#include <mach/bbu.h>
> +
> +#include <envfs.h>
> +
> +static int physom_imx8m_devices_init(void)
> +{
> + int flags;
> +
> + if (!of_machine_is_compatible("phytec,imx8mq-pcl066"))
> + return 0;
> +
> + barebox_set_hostname("phycore-imx8mq");
> +
> + flags = bootsource_get_instance() == 0 ? BBU_HANDLER_FLAG_DEFAULT : 0;
> + imx8mq_bbu_internal_mmc_register_handler("eMMC",
> + "/dev/mmc0.barebox", flags);
> +
> + flags = bootsource_get_instance() == 1 ? BBU_HANDLER_FLAG_DEFAULT : 0;
> + imx8mq_bbu_internal_mmc_register_handler("SD",
> + "/dev/mmc1.barebox", flags);
> +
> + if (bootsource_get_instance() == 0)
> + of_device_enable_path("/chosen/environment-emmc");
> + else
> + of_device_enable_path("/chosen/environment-sd");
> +
I made a similar suggestion to Lucas when he submitted that code for
EVK board, so at the risk of sounding like a broken record, you can
simplify this to:
switch (bootsource_get_instance()) {
case 0:
flags_mmc = BBU_HANDLER_FLAG_DEFAULT;
flags_sd = 0;
of_device_enable_path("/chosen/environment-emmc");
break;
case 1:
flags_mmc = 0;
flags_sd = BBU_HANDLER_FLAG_DEFAULT;
of_device_enable_path("/chosen/environment-sd");
break;
}
imx8mq_bbu_internal_mmc_register_handler("eMMC", "/dev/mmc0.barebox",
flags_mmc);
imx8mq_bbu_internal_mmc_register_handler("SD", "/dev/mmc1.barebox",
flags_sd);
Thanks,
Andrey Smirnov
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