diff options
| author | Siew Chin Lim <elly.siew.chin.lim@intel.com> | 2021-03-25 09:07:45 +0300 |
|---|---|---|
| committer | Ley Foon Tan <ley.foon.tan@intel.com> | 2021-04-08 12:29:13 +0300 |
| commit | 96fe4f6485e92ed9da464c96c5f536698c5ee66d (patch) | |
| tree | 158ad436e7a2568ec6e0d6f7fec3e86eac8a9455 /arch/arm/mach-socfpga | |
| parent | cdca9860705291de736d40ddc52acba2daaec106 (diff) | |
| download | u-boot-96fe4f6485e92ed9da464c96c5f536698c5ee66d.tar.xz | |
arm: socfpga: smc: Add function to get usercode
Add function to send mailbox command via SMC to get usercode from SDM.
Signed-off-by: Siew Chin Lim <elly.siew.chin.lim@intel.com>
Reviewed-by: Ley Foon Tan <ley.foon.tan@intel.com>
Diffstat (limited to 'arch/arm/mach-socfpga')
| -rw-r--r-- | arch/arm/mach-socfpga/include/mach/smc_api.h | 1 | ||||
| -rw-r--r-- | arch/arm/mach-socfpga/smc_api.c | 17 |
2 files changed, 18 insertions, 0 deletions
diff --git a/arch/arm/mach-socfpga/include/mach/smc_api.h b/arch/arm/mach-socfpga/include/mach/smc_api.h index bbefdd8dd9..6b5b7eadc6 100644 --- a/arch/arm/mach-socfpga/include/mach/smc_api.h +++ b/arch/arm/mach-socfpga/include/mach/smc_api.h @@ -9,5 +9,6 @@ int invoke_smc(u32 func_id, u64 *args, int arg_len, u64 *ret_arg, int ret_len); int smc_send_mailbox(u32 cmd, u32 len, u32 *arg, u8 urgent, u32 *resp_buf_len, u32 *resp_buf); +int smc_get_usercode(u32 *usercode); #endif /* _SMC_API_H_ */ diff --git a/arch/arm/mach-socfpga/smc_api.c b/arch/arm/mach-socfpga/smc_api.c index 085daba162..8ffc7a472b 100644 --- a/arch/arm/mach-socfpga/smc_api.c +++ b/arch/arm/mach-socfpga/smc_api.c @@ -54,3 +54,20 @@ int smc_send_mailbox(u32 cmd, u32 len, u32 *arg, u8 urgent, u32 *resp_buf_len, return (int)resp[0]; } + +int smc_get_usercode(u32 *usercode) +{ + int ret; + u64 resp; + + if (!usercode) + return -EINVAL; + + ret = invoke_smc(INTEL_SIP_SMC_GET_USERCODE, NULL, 0, + &resp, 1); + + if (ret == INTEL_SIP_SMC_STATUS_OK) + *usercode = (u32)resp; + + return ret; +} |