> From: Nikita Shubin <[email protected]> > Sent: Friday, September 02, 2022 4:48 PM > To: [email protected] > Cc: [email protected]; Sean Anderson <[email protected]>; Rick Chen > <[email protected]>; Nikita Shubin <[email protected]>; Rick Jian-Zhi > Chen(陳建志) <[email protected]>; Leo Yu-Chi Liang(梁育齊) > <[email protected]>; Simon Glass <[email protected]>; Bin Meng > <[email protected]>; Ilias Apalodimas <[email protected]>; > Heinrich Schuchardt <[email protected]> > Subject: [PATCH v3] spl: introduce SPL_XIP to config > > From: Nikita Shubin <[email protected]> > > U-Boot and SPL don't necessary share the same location, so we might end with > U-Boot SPL in read-only memory (XIP) and U-Boot in read-write memory. > > In case of non XIP boot mode, we rely on such variables as "hart_lottery" > and "available_harts_lock" which we use as atomics. > > The problem is that CONFIG_XIP also propagate to main U-Boot, not only SPL, > so we need CONFIG_SPL_XIP to distinguish SPL XIP from other XIP modes. > > This adds an option special for SPL to behave it in XIP manner and we don't > use hart_lottery and available_harts_lock, during start proccess. > > Signed-off-by: Nikita Shubin <[email protected]> > --- > v2->v3: > Rick Chen: > - move SPL_XIP to arch/riscv/Kconfig right after XIP > - change ae350_spl defconfig's to use SPL_XIP instead of XIP > --- > arch/riscv/Kconfig | 7 +++++++ > 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 +- > configs/ae350_rv32_spl_xip_defconfig | 2 +- > configs/ae350_rv64_spl_xip_defconfig | 2 +- > 8 files changed, 15 insertions(+), 8 deletions(-)
Reviewed-by: Rick Chen <[email protected]>
