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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>
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3 changed files with 36 additions and 0 deletions
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@ -9,5 +9,6 @@
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int invoke_smc(u32 func_id, u64 *args, int arg_len, u64 *ret_arg, int ret_len);
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int smc_send_mailbox(u32 cmd, u32 len, u32 *arg, u8 urgent, u32 *resp_buf_len,
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u32 *resp_buf);
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int smc_get_usercode(u32 *usercode);
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#endif /* _SMC_API_H_ */
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@ -54,3 +54,20 @@ int smc_send_mailbox(u32 cmd, u32 len, u32 *arg, u8 urgent, u32 *resp_buf_len,
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return (int)resp[0];
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}
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int smc_get_usercode(u32 *usercode)
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{
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int ret;
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u64 resp;
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if (!usercode)
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return -EINVAL;
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ret = invoke_smc(INTEL_SIP_SMC_GET_USERCODE, NULL, 0,
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&resp, 1);
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if (ret == INTEL_SIP_SMC_STATUS_OK)
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*usercode = (u32)resp;
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return ret;
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}
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@ -518,4 +518,22 @@ INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_FUNCID_FPGA_CONFIG_COMPLETED_WRITE)
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#define INTEL_SIP_SMC_MBOX_SEND_CMD \
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INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_FUNCID_MBOX_SEND_CMD)
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/*
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* Request INTEL_SIP_SMC_GET_USERCODE
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*
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* Send mailbox command to get usercode from SDM
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*
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* Call register usage:
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* a0 INTEL_SIP_SMC_GET_USERCODE
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* a1-7 not used.
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*
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* Return status
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* a0 INTEL_SIP_SMC_STATUS_OK or INTEL_SIP_SMC_STATUS_ERROR
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* a1 User code
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* a2-3 not used.
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*/
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#define INTEL_SIP_SMC_FUNCID_GET_USERCODE 61
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#define INTEL_SIP_SMC_GET_USERCODE \
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INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_FUNCID_GET_USERCODE)
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#endif
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