1 /* 2 * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <assert.h> 8 #include <debug.h> 9 #include <mmio.h> 10 #include <plat_sip_calls.h> 11 #include <rockchip_sip_svc.h> 12 #include <runtime_svc.h> 13 #include <uuid.h> 14 15 /* Rockchip SiP Service UUID */ 16 DEFINE_SVC_UUID(rk_sip_svc_uid, 17 0xe86fc7e2, 0x313e, 0x11e6, 0xb7, 0x0d, 18 0x8f, 0x88, 0xee, 0x74, 0x7b, 0x72); 19 20 #pragma weak rockchip_plat_sip_handler 21 uint64_t rockchip_plat_sip_handler(uint32_t smc_fid, 22 uint64_t x1, 23 uint64_t x2, 24 uint64_t x3, 25 uint64_t x4, 26 void *cookie, 27 void *handle, 28 uint64_t flags) 29 { 30 ERROR("%s: unhandled SMC (0x%x)\n", __func__, smc_fid); 31 SMC_RET1(handle, SMC_UNK); 32 } 33 34 /* 35 * This function is responsible for handling all SiP calls from the NS world 36 */ 37 uint64_t sip_smc_handler(uint32_t smc_fid, 38 uint64_t x1, 39 uint64_t x2, 40 uint64_t x3, 41 uint64_t x4, 42 void *cookie, 43 void *handle, 44 uint64_t flags) 45 { 46 uint32_t ns; 47 48 /* Determine which security state this SMC originated from */ 49 ns = is_caller_non_secure(flags); 50 if (!ns) 51 SMC_RET1(handle, SMC_UNK); 52 53 switch (smc_fid) { 54 case SIP_SVC_CALL_COUNT: 55 /* Return the number of Rockchip SiP Service Calls. */ 56 SMC_RET1(handle, 57 RK_COMMON_SIP_NUM_CALLS + RK_PLAT_SIP_NUM_CALLS); 58 59 case SIP_SVC_UID: 60 /* Return UID to the caller */ 61 SMC_UUID_RET(handle, rk_sip_svc_uid); 62 break; 63 64 case SIP_SVC_VERSION: 65 /* Return the version of current implementation */ 66 SMC_RET2(handle, RK_SIP_SVC_VERSION_MAJOR, 67 RK_SIP_SVC_VERSION_MINOR); 68 break; 69 70 default: 71 return rockchip_plat_sip_handler(smc_fid, x1, x2, x3, x4, 72 cookie, handle, flags); 73 } 74 } 75 76 /* Define a runtime service descriptor for fast SMC calls */ 77 DECLARE_RT_SVC( 78 rockchip_sip_svc, 79 OEN_SIP_START, 80 OEN_SIP_END, 81 SMC_TYPE_FAST, 82 NULL, 83 sip_smc_handler 84 ); 85
