linux-kernel - [PATCH 0/4] MIPS: Simplify ELF appended dtb handling

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Message-Id: <20180925180825.24659-1-yasha.che3@gmail.com>
Date:   Tue, 25 Sep 2018 21:08:21 +0300
From:   Yasha Cherikovsky <yasha.che3@...il.com>
To:     Ralf Baechle <ralf@...ux-mips.org>,
        Paul Burton <paul.burton@...s.com>,
        James Hogan <jhogan@...nel.org>, linux-mips@...ux-mips.org
Cc:     Yasha Cherikovsky <yasha.che3@...il.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH 0/4] MIPS: Simplify ELF appended dtb handling

Hi,

This patch series simplifies and cleans up the handling of
CONFIG_MIPS_ELF_APPENDED_DTB in the MIPS tree.

Specifically, it makes sure that the dtb appears in 'fw_passed_dtb'
also under CONFIG_MIPS_ELF_APPENDED_DTB=y.

This allows to remove special platform code that handled the ELF
appended dtb case, and replace it with the generic appended dtb
case (fw_passed_dtb).

There's also a bonus: platforms that already handle 'fw_passed_dtb',
gain now automatic support for detecting a DT blob under
CONFIG_MIPS_ELF_APPENDED_DTB=y.


Patches:
- Patch 1 adds only comments (to make the file more readable for patch 2).
- Patch 2 fixes 'fw_passed_dtb' under CONFIG_MIPS_ELF_APPENDED_DTB=y.
- Patch 3 simplifies CONFIG_MIPS_ELF_APPENDED_DTB handling on the BMIPS platform.
- Patch 4 simplifies CONFIG_MIPS_ELF_APPENDED_DTB handling on the Octeon platform.

Patches 3 and 4 depend on patch 2.

The patches are on top of v4.18.

The patches are also available at:
https://github.com/yashac3/linux-rtl8186/commits/elf_appended_dtb_changes_on_4_18

Please review.

Thanks,
Yasha

Cc: linux-kernel@...r.kernel.org


Yasha Cherikovsky (4):
  MIPS/head: Add comments after #endif and #else
  MIPS/head: Store ELF appended dtb in a global variable too
  MIPS: BMIPS: Remove special handling of CONFIG_MIPS_ELF_APPENDED_DTB=y
  MIPS: Octeon: Remove special handling of
    CONFIG_MIPS_ELF_APPENDED_DTB=y

 arch/mips/bmips/setup.c         |  9 +--------
 arch/mips/cavium-octeon/setup.c | 10 +++-------
 arch/mips/kernel/head.S         | 18 ++++++++++--------
 3 files changed, 14 insertions(+), 23 deletions(-)

-- 
2.19.0