cmd/sbi: display new extensions
OpenSBI already implements some extensions that are not ratified yet:
* Debug Console Extension (DBCN)
* System Suspend Extension (SUSP)
* Collaborative Processor Performance Control Extension (CPPC)
Allow the sbi command to display these.
Provide the FID definitions of the Debug Console Extension. We can use that
extension for an early debug console driver.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h
index 81fcfe0..7693699 100644
--- a/arch/riscv/include/asm/sbi.h
+++ b/arch/riscv/include/asm/sbi.h
@@ -28,6 +28,9 @@
SBI_EXT_HSM = 0x48534D,
SBI_EXT_SRST = 0x53525354,
SBI_EXT_PMU = 0x504D55,
+ SBI_EXT_DBCN = 0x4442434E,
+ SBI_EXT_SUSP = 0x53555350,
+ SBI_EXT_CPPC = 0x43505043,
};
enum sbi_ext_base_fid {
@@ -89,6 +92,12 @@
SBI_SRST_RESET_REASON_SYS_FAILURE,
};
+enum sbi_ext_dbcn_fid {
+ SBI_EXT_DBCN_CONSOLE_WRITE = 0,
+ SBI_EXT_DBCN_CONSOLE_READ,
+ SBI_EXT_DBCN_CONSOLE_WRITE_BYTE,
+};
+
#ifdef CONFIG_SBI_V01
#define SBI_EXT_SET_TIMER SBI_EXT_0_1_SET_TIMER
#define SBI_FID_SET_TIMER 0