[PATCH 0/2] riscv: cpu: Add support for cv1800b SoC
Kongyang Liu
seashell11234455 at gmail.com
Fri Feb 2 10:37:17 CET 2024
This series add basic support for cv1800b SoC and enable dcache support.
The cv1800b utilizes CSR instructions to manipulate the first and second
bits in the MHCR register (0x7C1) to indicate the activation status of icache
and dcache. As the icache and dcache are already enabled in the FSBL
(first stage bootloader) provided by the vendor, and the U-Boot running in
S-Mode is unable to manipulate CSR registers, support for operations related
to enabling, disabling, or checking the status of the cache is not provided.
Kongyang Liu (2):
riscv: cpu: cv1800b: Add support for cv1800b SoC
riscv: cache: Implement dcache for cv1800b
arch/riscv/Kconfig | 1 +
arch/riscv/cpu/cv1800b/Kconfig | 12 +++++++++
arch/riscv/cpu/cv1800b/Makefile | 7 +++++
arch/riscv/cpu/cv1800b/cache.c | 45 +++++++++++++++++++++++++++++++++
arch/riscv/cpu/cv1800b/cpu.c | 22 ++++++++++++++++
arch/riscv/cpu/cv1800b/dram.c | 21 +++++++++++++++
board/sophgo/milkv_duo/Kconfig | 4 +--
7 files changed, 110 insertions(+), 2 deletions(-)
create mode 100644 arch/riscv/cpu/cv1800b/Kconfig
create mode 100644 arch/riscv/cpu/cv1800b/Makefile
create mode 100644 arch/riscv/cpu/cv1800b/cache.c
create mode 100644 arch/riscv/cpu/cv1800b/cpu.c
create mode 100644 arch/riscv/cpu/cv1800b/dram.c
--
2.41.0
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