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lib: utils: atcsmu: Add Andes System Management Unit support

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This patch adds atcsmu support for Andes AE350 platforms. The SMU
provides system management capabilities, including clock, reset
and power control based on power domain partitions.

Signed-off-by: Yu Chien Peter Lin <peterlin@andestech.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Yu Chien Peter Lin
2023-01-20 11:05:10 +08:00
committed by Anup Patel
parent b1818ee244
commit 9c4eb3521e
5 changed files with 157 additions and 0 deletions
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59
include/sbi_utils/sys/atcsmu.h Normal file
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/*
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2023 Andes Technology Corporation
*/
#ifndef _SYS_ATCSMU_H
#define _SYS_ATCSMU_H
#include <sbi/sbi_types.h>
/* clang-format off */
#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 PCS_CTL_CMD_SHIFT 0
#define PCS_CTL_PARAM_SHIFT 3
#define SLEEP_CMD 0x3
#define WAKEUP_CMD (0x0 | (1 << PCS_CTL_PARAM_SHIFT))
#define LIGHTSLEEP_MODE 0
#define DEEPSLEEP_MODE 1
#define LIGHT_SLEEP_CMD (SLEEP_CMD | (LIGHTSLEEP_MODE << PCS_CTL_PARAM_SHIFT))
#define DEEP_SLEEP_CMD (SLEEP_CMD | (DEEPSLEEP_MODE << PCS_CTL_PARAM_SHIFT))
#define PCS0_CFG_OFFSET 0x80
#define PCSm_CFG_OFFSET(i) ((i + 3) * 0x20 + PCS0_CFG_OFFSET)
#define PCS_CFG_LIGHT_SLEEP_SHIFT 2
#define PCS_CFG_LIGHT_SLEEP (1 << PCS_CFG_LIGHT_SLEEP_SHIFT)
#define PCS_CFG_DEEP_SLEEP_SHIFT 3
#define PCS_CFG_DEEP_SLEEP (1 << PCS_CFG_DEEP_SLEEP_SHIFT)
#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 PCS_MAX_NR 8
#define FLASH_BASE 0x80000000ULL
/* clang-format on */
struct smu_data {
unsigned long addr;
};
int smu_set_wakeup_events(struct smu_data *smu, u32 events, u32 hartid);
bool smu_support_sleep_mode(struct smu_data *smu, u32 sleep_mode, u32 hartid);
int smu_set_command(struct smu_data *smu, u32 pcs_ctl, u32 hartid);
int smu_set_reset_vector(struct smu_data *smu, ulong wakeup_addr, u32 hartid);
#endif /* _SYS_ATCSMU_H */