Firmware/opensbi
8
0
Fork 0
forked from Mirrors/opensbi
Code Pull Requests Activity

lib: sbi: Add system suspend skeleton

Browse Source 
Add the SUSP extension probe and ecall support, but for now the
system suspend function is just a stub.

Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Andrew Jones
2023-02-27 11:31:02 +01:00
committed by Anup Patel
parent 8a40306371
commit 73623a0aca
7 changed files with 119 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
include/sbi/sbi_ecall_interface.h
View File

@@ -30,6 +30,7 @@
#define SBI_EXT_SRST 0x53525354
#define SBI_EXT_PMU 0x504D55
#define SBI_EXT_DBCN 0x4442434E
#define SBI_EXT_SUSP 0x53555350
/* SBI function IDs for BASE extension*/
#define SBI_EXT_BASE_GET_SPEC_VERSION 0x0
@@ -236,6 +237,13 @@ enum sbi_pmu_ctr_type {
#define SBI_EXT_DBCN_CONSOLE_READ 0x1
#define SBI_EXT_DBCN_CONSOLE_WRITE_BYTE 0x2
/* SBI function IDs for SUSP extension */
#define SBI_EXT_SUSP_SUSPEND 0x0
#define SBI_SUSP_SLEEP_TYPE_SUSPEND 0x0
#define SBI_SUSP_SLEEP_TYPE_LAST SBI_SUSP_SLEEP_TYPE_SUSPEND
#define SBI_SUSP_PLATFORM_SLEEP_START 0x80000000
/* SBI base specification related macros */
#define SBI_SPEC_VERSION_MAJOR_OFFSET 24
#define SBI_SPEC_VERSION_MAJOR_MASK 0x7f