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lib: utils/hsm: factor out ATCSMU code into an HSM driver

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Refactor ATCSMU (System Management Unit) support by moving it from a
system utility into a dedicated FDT-based HSM driver.

Key changes include:

- Moving the functions in lib/utils/sys/atcsmu.c into the new HSM driver
- Moving hart start and stop operations on AE350 platform into the new
  HSM driver
- Converting the assembly-based functions in sleep.S to C code for the
  readability
- Updating the ATCWDT200 driver

Signed-off-by: Ben Zong-You Xie <ben717@andestech.com>
Signed-off-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Link: https://lore.kernel.org/r/20251229071914.1451587-2-ben717@andestech.com
Signed-off-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Ben Zong-You Xie
2025-12-29 15:19:10 +08:00
committed by Anup Patel
parent 74434f2558
commit 9ffacc8ae1
16 changed files with 302 additions and 348 deletions
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5
lib/utils/hsm/objects.mk
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@@ -7,6 +7,9 @@
# Anup Patel <apatel@ventanamicro.com>
#
carray-fdt_early_drivers-$(CONFIG_FDT_HSM_ANDES_ATCSMU) += fdt_hsm_andes_atcsmu
libsbiutils-objs-$(CONFIG_FDT_HSM_ANDES_ATCSMU) += hsm/fdt_hsm_andes_atcsmu.o
carray-fdt_early_drivers-$(CONFIG_FDT_HSM_RPMI) += fdt_hsm_rpmi
libsbiutils-objs-$(CONFIG_FDT_HSM_RPMI) += hsm/fdt_hsm_rpmi.o
@@ -14,4 +17,4 @@ carray-fdt_early_drivers-$(CONFIG_FDT_HSM_SPACEMIT) += fdt_hsm_spacemit
libsbiutils-objs-$(CONFIG_FDT_HSM_SPACEMIT) += hsm/fdt_hsm_spacemit.o
carray-fdt_early_drivers-$(CONFIG_FDT_HSM_SIFIVE_TMC0) += fdt_hsm_sifive_tmc0
libsbiutils-objs-$(CONFIG_FDT_HSM_SIFIVE_TMC0) += hsm/fdt_hsm_sifive_tmc0.o
libsbiutils-objs-$(CONFIG_FDT_HSM_SIFIVE_TMC0) += hsm/fdt_hsm_sifive_tmc0.o