85 lines
1.9 KiB
C
85 lines
1.9 KiB
C
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/*
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* Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <assert.h>
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#include <common/debug.h>
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#include <common/runtime_svc.h>
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#include <lib/mmio.h>
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#include <tools_share/uuid.h>
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#include <plat_sip_calls.h>
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#include <rockchip_sip_svc.h>
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/* Rockchip SiP Service UUID */
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DEFINE_SVC_UUID2(rk_sip_svc_uid,
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0xe2c76fe8, 0x3e31, 0xe611, 0xb7, 0x0d,
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0x8f, 0x88, 0xee, 0x74, 0x7b, 0x72);
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#pragma weak rockchip_plat_sip_handler
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uintptr_t rockchip_plat_sip_handler(uint32_t smc_fid,
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u_register_t x1,
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u_register_t x2,
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u_register_t x3,
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u_register_t x4,
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void *cookie,
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void *handle,
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u_register_t flags)
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{
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ERROR("%s: unhandled SMC (0x%x)\n", __func__, smc_fid);
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SMC_RET1(handle, SMC_UNK);
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}
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/*
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* This function is responsible for handling all SiP calls from the NS world
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*/
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uintptr_t sip_smc_handler(uint32_t smc_fid,
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u_register_t x1,
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u_register_t x2,
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u_register_t x3,
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u_register_t x4,
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void *cookie,
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void *handle,
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u_register_t flags)
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{
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uint32_t ns;
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/* Determine which security state this SMC originated from */
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ns = is_caller_non_secure(flags);
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if (!ns)
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SMC_RET1(handle, SMC_UNK);
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switch (smc_fid) {
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case SIP_SVC_CALL_COUNT:
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/* Return the number of Rockchip SiP Service Calls. */
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SMC_RET1(handle,
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RK_COMMON_SIP_NUM_CALLS + RK_PLAT_SIP_NUM_CALLS);
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case SIP_SVC_UID:
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/* Return UID to the caller */
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SMC_UUID_RET(handle, rk_sip_svc_uid);
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case SIP_SVC_VERSION:
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/* Return the version of current implementation */
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SMC_RET2(handle, RK_SIP_SVC_VERSION_MAJOR,
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RK_SIP_SVC_VERSION_MINOR);
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default:
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return rockchip_plat_sip_handler(smc_fid, x1, x2, x3, x4,
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cookie, handle, flags);
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}
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}
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/* Define a runtime service descriptor for fast SMC calls */
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DECLARE_RT_SVC(
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rockchip_sip_svc,
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OEN_SIP_START,
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OEN_SIP_END,
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SMC_TYPE_FAST,
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NULL,
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sip_smc_handler
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);
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