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* [Buildroot] [PATCH 1/7] package/rpi-firmware: bump version
@ 2017-07-13 12:22 Martin Bark
  2017-07-13 12:22 ` [Buildroot] [PATCH 2/7] package/rpi-userland: " Martin Bark
                   ` (6 more replies)
  0 siblings, 7 replies; 10+ messages in thread
From: Martin Bark @ 2017-07-13 12:22 UTC (permalink / raw)
  To: buildroot

Signed-off-by: Martin Bark <martin@barkynet.com>
---
 package/rpi-firmware/rpi-firmware.hash | 2 +-
 package/rpi-firmware/rpi-firmware.mk   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package/rpi-firmware/rpi-firmware.hash b/package/rpi-firmware/rpi-firmware.hash
index 11655ee..db26c1e 100644
--- a/package/rpi-firmware/rpi-firmware.hash
+++ b/package/rpi-firmware/rpi-firmware.hash
@@ -1,2 +1,2 @@
 # Locally computed
-sha256 84f44265c7e9bfe3e54a326b95ea7067870cfe08a9aae12f00aec8d47f6fc353 rpi-firmware-4b24a81a2ce94afd4458d1af4ea1e73d58e69848.tar.gz
+sha256 42edea8317869f5a5ed87dfe009ceffce6a784ff40cb5da3e9e8a4fc61d79610 rpi-firmware-685b3ceb0a6d6d6da7b028ee409850e83fb7ede7.tar.gz
diff --git a/package/rpi-firmware/rpi-firmware.mk b/package/rpi-firmware/rpi-firmware.mk
index 134fceb..0afdc87 100644
--- a/package/rpi-firmware/rpi-firmware.mk
+++ b/package/rpi-firmware/rpi-firmware.mk
@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-RPI_FIRMWARE_VERSION = 4b24a81a2ce94afd4458d1af4ea1e73d58e69848
+RPI_FIRMWARE_VERSION = 685b3ceb0a6d6d6da7b028ee409850e83fb7ede7
 RPI_FIRMWARE_SITE = $(call github,raspberrypi,firmware,$(RPI_FIRMWARE_VERSION))
 RPI_FIRMWARE_LICENSE = BSD-3-Clause
 RPI_FIRMWARE_LICENSE_FILES = boot/LICENCE.broadcom
-- 
2.7.4

^ permalink raw reply related	[flat|nested] 10+ messages in thread
* [Buildroot] [PATCH 0/7] RPi: enable building a device-tree-enabled kernel (branch yem/rpi-dt)
@ 2015-01-01 20:23 Yann E. MORIN
  2015-01-01 20:23 ` [Buildroot] [PATCH 1/7] package/rpi-firmware: bump version Yann E. MORIN
  0 siblings, 1 reply; 10+ messages in thread
From: Yann E. MORIN @ 2015-01-01 20:23 UTC (permalink / raw)
  To: buildroot

Hello All!

Recently, the Raspberry Pi fork of the kernel has gained support
for the device tree.

This series is an attempt at making it smoothly available in Buildroot:

  - allow Buildroot to build a DT kernel without necessarily building
    the DTB (the DTB can be hard-coded on a board, for example, or the
    bootloader will provide it, either dynamically built at runtime,
    or bundled in the bootloader sources);

  - bump rpi-firmware, and use different versions depending on
    whether we are using a DT kernel or not; install the DTBs when
    needed.

It is to be moted that the device tree support on the Raspberry Pi is
not trivially similar to how all other boards behave.


====
First, the bootloader needs to know if the kernel has DT support or not,
so it looks for a magic DTOK footer (a header at the end); if this header
is present, DT support is assumed, and the bootloader loads the DTB.

This is not very much like what is done on other boards...

====
Second, the bootloader knows what model of the RPi it boots on, and is
thus capable of loading the correct DTB. This is nice, because it means
that a single firmware will work on all RPI models, auto magically.

This requires the kernel image has the footer appended, of course.


===
Third, if the kernel does not have a DTOK footer, it is possible to
force-load a DTB, by adding a directive in the config.txt file (the
configuration of the bootloader).

In this case, the bootloader will force-load that file as a DTB before
booting the kernel.

But we loose the autodetection of the model we are running on, and
it is not longer possible to run the same firmware on all models.


===
Eventually, there is a not-so-simple perl script that is provided in
a separate RPi repository. Since this repository is rather huge, we
just copied that script and bundled it in Buildroot.

Notes: I've upstreamed a fix for that perl script, that has been
accepted. Round-trip: 2 hours! Yeah! :-)


===
This has been tested to work great with the currently-latest cset on
the rpi-3.18.y branch, at:
    https://github.com/raspberrypi/linux/tree/rpi-3.18.y
    5fdce56c57f419a8f8a57a6c5b90d63deabca713

Since this is not their stable branch, that specific commit may disapear
any time; just use the latest commit on rpi-3.18.y .

Regards,
Yann E. MORIN.


The following changes since commit b7e7b417fa1210a7f9c4e76ee747238981dcd012:

  wpa_supplicant: fix indentation and change file permissions (2015-01-01 11:31:14 +0100)

are available in the git repository at:

  git://git.busybox.net/~ymorin/git/buildroot yem/rpi-dt

for you to fetch changes up to 0c0f5c97634b438044f09c32bdc42edcd878feb0:

  package/rpi-firmware: append the DTOK footer for DT-aware kernel (2015-01-01 18:33:20 +0100)

----------------------------------------------------------------
Yann E. MORIN (7):
      package/rpi-firmware: bump version
      linux: add option to rely on a bootloader-provided DTB
      docs/manual: document LIBFOO_INSTALL_IMAGES
      package/rpi-firmware: only install images
      package/rpi-firmware: add DT-aware marking script
      package/rpi-firmware: install DTB blobs
      package/rpi-firmware: append the DTOK footer for DT-aware kernel

 docs/manual/adding-packages-generic.txt |   5 +
 linux/Config.in                         |   8 ++
 linux/linux.mk                          |  12 +-
 package/rpi-firmware/Config.in          |  11 ++
 package/rpi-firmware/mkknlimg           | 204 ++++++++++++++++++++++++++++++++
 package/rpi-firmware/rpi-firmware.mk    |  41 ++++++-
 6 files changed, 278 insertions(+), 3 deletions(-)
 create mode 100755 package/rpi-firmware/mkknlimg

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 223 225 172 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'

^ permalink raw reply	[flat|nested] 10+ messages in thread
end of thread, other threads:[~2017-07-15 21:17 UTC | newest]

Thread overview: 10+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2017-07-13 12:22 [Buildroot] [PATCH 1/7] package/rpi-firmware: bump version Martin Bark
2017-07-13 12:22 ` [Buildroot] [PATCH 2/7] package/rpi-userland: " Martin Bark
2017-07-13 12:22 ` [Buildroot] [PATCH 3/7] configs/raspberrypi_defconfig: bump kernel version to 4.9.36 Martin Bark
2017-07-13 12:22 ` [Buildroot] [PATCH 4/7] configs/raspberrypi0_defconfig: " Martin Bark
2017-07-13 12:22 ` [Buildroot] [PATCH 5/7] configs/raspberrypi2_defconfig: " Martin Bark
2017-07-13 12:22 ` [Buildroot] [PATCH 6/7] configs/raspberrypi3_defconfig: " Martin Bark
2017-07-13 12:22 ` [Buildroot] [PATCH 7/7] configs/raspberrypi3_64_defconfig: " Martin Bark
2017-07-15 21:17 ` [Buildroot] [PATCH 1/7] package/rpi-firmware: bump version Thomas Petazzoni
  -- strict thread matches above, loose matches on Subject: below --
2015-01-01 20:23 [Buildroot] [PATCH 0/7] RPi: enable building a device-tree-enabled kernel (branch yem/rpi-dt) Yann E. MORIN
2015-01-01 20:23 ` [Buildroot] [PATCH 1/7] package/rpi-firmware: bump version Yann E. MORIN
2015-01-01 21:25   ` Thomas Petazzoni

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