From: "Denys Dmytriyenko" <denis@denix.org>
To: Tom Rini <tom.rini@gmail.com>
Cc: meta-ti@lists.yoctoproject.org
Subject: Re: [meta-ti] [PATCHv2] conf: am335x-evm: Add extlinux.conf support
Date: Sun, 13 Jun 2021 15:36:41 -0400 [thread overview]
Message-ID: <20210613193641.GB1528@denix.org> (raw)
In-Reply-To: <20210612131331.13439-1-trini@konsulko.com>
On Sat, Jun 12, 2021 at 09:13:31AM -0400, Tom Rini wrote:
> To make use of the "generic distro boot" support in U-Boot, an
> extlinux.conf file needs to be generated and reside in the extlinux
> directory. The extlinux.conf file will be parsed by U-Boot and the
> "append" line will be evaluated and expanded and used entirely as the
> bootargs passed to the kernel. Our generated extlinux.conf states
> that the kernel image and device trees live one level up (so the root
> directory) from it, so populate that location with our kernel and device
> trees.
>
> Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Denys Dmytriyenko <denys@konsulko.com>
> ---
> Changes in v2:
> - Elaborate on how this feature works in the commit message.
> ---
> conf/machine/include/ti33x.inc | 11 ++++++++++-
> 1 file changed, 10 insertions(+), 1 deletion(-)
>
> diff --git a/conf/machine/include/ti33x.inc b/conf/machine/include/ti33x.inc
> index 6dfda754e9dd..35e057d57497 100644
> --- a/conf/machine/include/ti33x.inc
> +++ b/conf/machine/include/ti33x.inc
> @@ -43,6 +43,15 @@ UBOOT_MACHINE = "am335x_evm_config"
> UBOOT_ENTRYPOINT = "0x80008000"
> UBOOT_LOADADDRESS = "0x80008000"
>
> +# Generate an extlinux.conf file
> +UBOOT_EXTLINUX = "1"
> +UBOOT_EXTLINUX_ROOT = "root=PARTUUID=${uuid}"
> +UBOOT_EXTLINUX_BOOT_FILES = " \
> + extlinux.conf;extlinux/extlinux.conf \
> + ${KERNEL_IMAGETYPE} \
> + ${KERNEL_DEVICETREE} \
> +"
> +
> SPL_BINARY = "MLO"
> UBOOT_SUFFIX = "img"
>
> @@ -61,5 +70,5 @@ TI_PDK_LIMIT_BOARDS = "evmAM335x icev2AM335x iceAMIC110 bbbAM335x skAM335x"
>
> IMAGE_FSTYPES += "tar.xz wic.xz"
> WKS_FILE ?= "sdimage-2part.wks"
> -IMAGE_BOOT_FILES ?= "${SPL_BINARY} u-boot.${UBOOT_SUFFIX}"
> +IMAGE_BOOT_FILES ?= "${SPL_BINARY} u-boot.${UBOOT_SUFFIX} ${UBOOT_EXTLINUX_BOOT_FILES}"
> do_image_wic[depends] += "virtual/bootloader:do_deploy"
> --
> 2.17.1
>
next prev parent reply other threads:[~2021-06-13 19:36 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <16875AD11A54340A.8333@lists.yoctoproject.org>
2021-06-12 13:13 ` [PATCHv2] conf: am335x-evm: Add extlinux.conf support Tom Rini
2021-06-13 19:36 ` Denys Dmytriyenko [this message]
2021-06-14 14:43 ` [meta-ti] " Nishanth Menon
2021-06-14 16:02 ` Tom Rini
2021-06-14 16:27 ` Nishanth Menon
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