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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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49
include/sbi_utils/hsm/fdt_hsm_andes_atcsmu.h Normal file
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/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2025 Andes Technology Corporation
*/
#ifndef __FDT_HSM_ANDES_ATCSMU_H__
#define __FDT_HSM_ANDES_ATCSMU_H__
#include <sbi/sbi_types.h>
/* clang-format off */
#define RESET_VEC_LO_OFFSET 0x50
#define RESET_VEC_HI_OFFSET 0x60
#define RESET_VEC_8CORE_OFFSET 0x1a0
#define HARTn_RESET_VEC_LO(n) (RESET_VEC_LO_OFFSET + \
((n) < 4 ? 0 : RESET_VEC_8CORE_OFFSET) + \
((n) * 0x4))
#define HARTn_RESET_VEC_HI(n) (RESET_VEC_HI_OFFSET + \
((n) < 4 ? 0 : RESET_VEC_8CORE_OFFSET) + \
((n) * 0x4))
#define PCS0_CFG_OFFSET 0x80
#define PCSm_CFG_OFFSET(i) ((i + 3) * 0x20 + PCS0_CFG_OFFSET)
#define PCS_CFG_LIGHT_SLEEP BIT(2)
#define PCS_CFG_DEEP_SLEEP BIT(3)
#define PCS0_SCRATCH_OFFSET 0x84
#define PCSm_SCRATCH_OFFSET(i) ((i + 3) * 0x20 + PCS0_SCRATCH_OFFSET)
#define PCS0_WE_OFFSET 0x90
#define PCSm_WE_OFFSET(i) ((i + 3) * 0x20 + PCS0_WE_OFFSET)
#define PCS0_CTL_OFFSET 0x94
#define PCSm_CTL_OFFSET(i) ((i + 3) * 0x20 + PCS0_CTL_OFFSET)
#define LIGHT_SLEEP_CMD 0x3
#define WAKEUP_CMD 0x8
#define DEEP_SLEEP_CMD 0xb
/* clang-format on */
void atcsmu_set_wakeup_events(u32 events, u32 hartid);
bool atcsmu_support_sleep_mode(u32 sleep_type, u32 hartid);
void atcsmu_set_command(u32 pcs_ctl, u32 hartid);
int atcsmu_set_reset_vector(u64 wakeup_addr, u32 hartid);
u32 atcsmu_get_sleep_type(u32 hartid);
#endif