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