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spl: introduce SPL_XIP to config

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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 <n.shubin@yadro.com>
Reviewed-by: Rick Chen <rick@andestech.com>
This commit is contained in:
Nikita Shubin
2022-09-02 11:47:39 +03:00
committed by Leo Yu-Chi Liang
parent 435596d57f
commit c2bdf02c9d
8 changed files with 15 additions and 8 deletions
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2
configs/ae350_rv32_spl_xip_defconfig
View File

@@ -11,7 +11,7 @@ CONFIG_SPL=y
CONFIG_SYS_LOAD_ADDR=0x100000
CONFIG_TARGET_AX25_AE350=y
CONFIG_RISCV_SMODE=y
CONFIG_XIP=y
CONFIG_SPL_XIP=y
CONFIG_DISTRO_DEFAULTS=y
CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0xffff00

2
configs/ae350_rv64_spl_xip_defconfig
View File

@@ -12,7 +12,7 @@ CONFIG_SYS_LOAD_ADDR=0x100000
CONFIG_TARGET_AX25_AE350=y
CONFIG_ARCH_RV64I=y
CONFIG_RISCV_SMODE=y
CONFIG_XIP=y
CONFIG_SPL_XIP=y
CONFIG_DISTRO_DEFAULTS=y
CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0xfffe70