From mboxrd@z Thu Jan 1 00:00:00 1970 From: AKASHI Takahiro Date: Tue, 9 Apr 2019 10:49:35 +0900 Subject: [U-Boot] [PATCH 1/1] efi_loader: define development target in README.uefi In-Reply-To: <990db13a-a699-0135-3be5-d2a4e0b3169b@csgraf.de> References: <20190328071131.3013-1-xypron.glpk@gmx.de> <990db13a-a699-0135-3be5-d2a4e0b3169b@csgraf.de> Message-ID: <20190409014933.GD21650@linaro.org> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On Mon, Apr 01, 2019 at 01:28:24AM +0700, Alexander Graf wrote: > > On 28.03.19 14:11, Heinrich Schuchardt wrote: > > Describe the target scope of the UEFI implementation in U-Boot. > > > > Signed-off-by: Heinrich Schuchardt > > --- > > doc/README.uefi | 11 +++++++++++ > > 1 file changed, 11 insertions(+) > > > > diff --git a/doc/README.uefi b/doc/README.uefi > > index b38efbc0cc..66b6abece5 100644 > > --- a/doc/README.uefi > > +++ b/doc/README.uefi > > @@ -12,6 +12,15 @@ the interaction of drivers and applications with the firmware. The API comprises > > access to block storage, network, and console to name a few. The Linux kernel > > and boot loaders like GRUB or the FreeBSD loader can be executed. > > > > +## Development target > > + > > +The implementation of UEFI in U-Boot strives to reach the minimum requirements > > +described in "Server Base Boot Requirements System Software on ARM Platforms - > > +Version 1.1" [4]. > > + > > +A full blown UEFI implementation would contradict the U-Boot design principle > > +"keep it small". > > > I'm not sure we ever want to be fully SBBR compliant. We might be, but > it's not been a goal so far. We do however want to be *EBBR* compliant. The current U-Boot still lacks lots of EBBR features. Our 'minimum' set may be even much smaller than that. -Takahiro Akashi > Alex > > > > + > > ## Building for UEFI > > > > The UEFI standard supports only little-endian systems. The UEFI support can be > > @@ -335,3 +344,5 @@ This driver is only available if U-Boot is configured with > > http://uefi.org/specifications - UEFI specifications > > * [2](./driver-model/README.txt) doc/driver-model/README.txt - Driver model > > * [3](./README.iscsi) doc/README.iscsi - iSCSI booting with U-Boot and iPXE > > +* [4](https://developer.arm.com/docs/den0044/latest/server-base-boot-requirements-system-software-on-arm-platforms-version-11) > > + Server Base Boot Requirements System Software on ARM Platforms - Version 1.1 > > -- > > 2.20.1 > >