[RFC PATCH 0/1] spl: introduce SPL_XIP to config

From: Nikita Shubin <nikita.shubin@maquefel.me>
Cc: linux@yadro.com, Nikita Shubin <n.shubin@yadro.com>,
	Rick Chen <rick@andestech.com>, Leo <ycliang@andestech.com>,
	Simon Glass <sjg@chromium.org>, Bin Meng <bmeng.cn@gmail.com>,
	Ilias Apalodimas <ilias.apalodimas@linaro.org>,
	Heinrich Schuchardt <xypron.glpk@gmx.de>,
	Sergei Miroshnichenko <s.miroshnichenko@yadro.com>,
	Alexandru Gagniuc <mr.nuke.me@gmail.com>,
	Alper Nebi Yasak <alpernebiyasak@gmail.com>,
	Andrew Davis <afd@ti.com>,
	u-boot@lists.denx.de
Subject: [RFC PATCH 0/1] spl: introduce SPL_XIP to config
Date: Thu, 11 Aug 2022 12:37:05 +0300	[thread overview]
Message-ID: <20220811093706.3772-1-nikita.shubin@maquefel.me> (raw)

From: Nikita Shubin <n.shubin@yadro.com>

U-Boot and SPL don't necessary share the same location, so we might end
with XIP SPL and U-Boot in "normal" memory.

Actually, it seems that we need only hart_lottery and available_harts_lock to 
function like a R/W memory.

May be we should introduce a new section solely for this two locks copy and
initialize it somewhere befor hart lottery or place config variable with 
desired location for locks, but we still end up with a need for a 
"master" hart.

Does anyone have some thoughts about this ?

Nikita Shubin (1):
  spl: introduce SPL_XIP to config

 arch/riscv/cpu/cpu.c                 | 2 +-
 arch/riscv/cpu/start.S               | 4 ++--
 arch/riscv/include/asm/global_data.h | 2 +-
 arch/riscv/lib/asm-offsets.c         | 2 +-
 arch/riscv/lib/smp.c                 | 2 +-
 common/spl/Kconfig                   | 5 +++++
 include/configs/scr7_vcu118.h        | 2 ++
 7 files changed, 13 insertions(+), 6 deletions(-)

-- 
2.35.1