11760db68SCaesar Wang /* 21760db68SCaesar Wang * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. 31760db68SCaesar Wang * 482cb2c1aSdp-arm * SPDX-License-Identifier: BSD-3-Clause 51760db68SCaesar Wang */ 61760db68SCaesar Wang 71760db68SCaesar Wang #include <assert.h> 81760db68SCaesar Wang #include <debug.h> 91760db68SCaesar Wang #include <mmio.h> 101760db68SCaesar Wang #include <plat_sip_calls.h> 111760db68SCaesar Wang #include <rockchip_sip_svc.h> 121760db68SCaesar Wang #include <runtime_svc.h> 131760db68SCaesar Wang #include <uuid.h> 141760db68SCaesar Wang 151760db68SCaesar Wang /* Rockchip SiP Service UUID */ 161760db68SCaesar Wang DEFINE_SVC_UUID(rk_sip_svc_uid, 171760db68SCaesar Wang 0xe86fc7e2, 0x313e, 0x11e6, 0xb7, 0x0d, 181760db68SCaesar Wang 0x8f, 0x88, 0xee, 0x74, 0x7b, 0x72); 191760db68SCaesar Wang 201760db68SCaesar Wang #pragma weak rockchip_plat_sip_handler 21*57d1e5faSMasahiro Yamada uintptr_t rockchip_plat_sip_handler(uint32_t smc_fid, 22*57d1e5faSMasahiro Yamada u_register_t x1, 23*57d1e5faSMasahiro Yamada u_register_t x2, 24*57d1e5faSMasahiro Yamada u_register_t x3, 25*57d1e5faSMasahiro Yamada u_register_t x4, 261760db68SCaesar Wang void *cookie, 271760db68SCaesar Wang void *handle, 28*57d1e5faSMasahiro Yamada u_register_t flags) 291760db68SCaesar Wang { 301760db68SCaesar Wang ERROR("%s: unhandled SMC (0x%x)\n", __func__, smc_fid); 311760db68SCaesar Wang SMC_RET1(handle, SMC_UNK); 321760db68SCaesar Wang } 331760db68SCaesar Wang 341760db68SCaesar Wang /* 351760db68SCaesar Wang * This function is responsible for handling all SiP calls from the NS world 361760db68SCaesar Wang */ 37*57d1e5faSMasahiro Yamada uintptr_t sip_smc_handler(uint32_t smc_fid, 38*57d1e5faSMasahiro Yamada u_register_t x1, 39*57d1e5faSMasahiro Yamada u_register_t x2, 40*57d1e5faSMasahiro Yamada u_register_t x3, 41*57d1e5faSMasahiro Yamada u_register_t x4, 421760db68SCaesar Wang void *cookie, 431760db68SCaesar Wang void *handle, 44*57d1e5faSMasahiro Yamada u_register_t flags) 451760db68SCaesar Wang { 461760db68SCaesar Wang uint32_t ns; 471760db68SCaesar Wang 481760db68SCaesar Wang /* Determine which security state this SMC originated from */ 491760db68SCaesar Wang ns = is_caller_non_secure(flags); 501760db68SCaesar Wang if (!ns) 511760db68SCaesar Wang SMC_RET1(handle, SMC_UNK); 521760db68SCaesar Wang 531760db68SCaesar Wang switch (smc_fid) { 541760db68SCaesar Wang case SIP_SVC_CALL_COUNT: 551760db68SCaesar Wang /* Return the number of Rockchip SiP Service Calls. */ 561760db68SCaesar Wang SMC_RET1(handle, 571760db68SCaesar Wang RK_COMMON_SIP_NUM_CALLS + RK_PLAT_SIP_NUM_CALLS); 581760db68SCaesar Wang 591760db68SCaesar Wang case SIP_SVC_UID: 601760db68SCaesar Wang /* Return UID to the caller */ 611760db68SCaesar Wang SMC_UUID_RET(handle, rk_sip_svc_uid); 621760db68SCaesar Wang 631760db68SCaesar Wang case SIP_SVC_VERSION: 641760db68SCaesar Wang /* Return the version of current implementation */ 651760db68SCaesar Wang SMC_RET2(handle, RK_SIP_SVC_VERSION_MAJOR, 661760db68SCaesar Wang RK_SIP_SVC_VERSION_MINOR); 671760db68SCaesar Wang 681760db68SCaesar Wang default: 691760db68SCaesar Wang return rockchip_plat_sip_handler(smc_fid, x1, x2, x3, x4, 701760db68SCaesar Wang cookie, handle, flags); 711760db68SCaesar Wang } 721760db68SCaesar Wang } 731760db68SCaesar Wang 741760db68SCaesar Wang /* Define a runtime service descriptor for fast SMC calls */ 751760db68SCaesar Wang DECLARE_RT_SVC( 761760db68SCaesar Wang rockchip_sip_svc, 771760db68SCaesar Wang OEN_SIP_START, 781760db68SCaesar Wang OEN_SIP_END, 791760db68SCaesar Wang SMC_TYPE_FAST, 801760db68SCaesar Wang NULL, 811760db68SCaesar Wang sip_smc_handler 821760db68SCaesar Wang ); 83