From: Stephen Warren <swarren@wwwdotorg.org>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 5/5] rpi: BCM2837 and Raspberry Pi 3 32-bit support
Date: Thu, 24 Mar 2016 21:08:31 -0600 [thread overview]
Message-ID: <56F4ABAF.6030302@wwwdotorg.org> (raw)
In-Reply-To: <1458795294-9511-5-git-send-email-swarren@wwwdotorg.org>
On 03/23/2016 10:54 PM, Stephen Warren wrote:
> The Raspberry Pi 3 contains a BCM2837 SoC. The BCM2837 is a BCM2836 with
> the CPU complex swapped out for a quad-core ARMv8. This can operate in 32-
> or 64-bit mode. 32-bit mode is the current default selected by the
> VideoCore firmware on the Raspberry Pi 3. This patch adds a 32-bit port of
> U-Boot for the Raspberry Pi 3.
...
> A recent version of the VC firmware is required to ensure that the mini
> UART is fully and correctly initialized by the VC FW. At least
> firmware.git commit 7f536a27cc74 "kernel: lirc_rpi: Lower IR reception
> error to debug See: https://github.com/raspberrypi/linux/pull/1361" is
> required. However, note that there is a bug in that version that prevents
> MMC from operating correctly on any Pi. As of 20160323 that is not fixed.
The MMC bug has been fixed, so I'll revise this patch description since
I have to resend anyway.
> diff --git a/arch/arm/mach-bcm283x/Kconfig b/arch/arm/mach-bcm283x/Kconfig
> +config TARGET_RPI_3_32B
> + bool "Raspberry Pi 3 32-bit build"
> + Support for all BCM2837-based Raspberry Pi variants, such as
> + the RPi 3 model B, in AArch32 (32-bit) mode.
I missed the "help" line there. I fail for adding "comments" and not
test building:-(
prev parent reply other threads:[~2016-03-25 3:08 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-24 4:54 [U-Boot] [PATCH 1/5] ARM: bcm2835: move CONFIG_BCM283* to Kconfig Stephen Warren
2016-03-24 4:54 ` [U-Boot] [PATCH 2/5] rpi: use constant "unknown board" DT filename Stephen Warren
2016-03-24 4:54 ` [U-Boot] [PATCH 3/5] rpi: add Raspberry Pi 3 board ID Stephen Warren
2016-03-24 4:54 ` [U-Boot] [PATCH 4/5] ARM: bcm2835: expand Kconfig target descriptions Stephen Warren
2016-03-24 4:54 ` [U-Boot] [PATCH 5/5] rpi: BCM2837 and Raspberry Pi 3 32-bit support Stephen Warren
2016-03-25 3:08 ` Stephen Warren [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=56F4ABAF.6030302@wwwdotorg.org \
--to=swarren@wwwdotorg.org \
--cc=u-boot@lists.denx.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.