1 /* 2 * Copyright (C) 2018 Marvell International Ltd. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 * https://spdx.org/licenses 6 */ 7 8 #include <common/debug.h> 9 #include <common/runtime_svc.h> 10 #include <drivers/marvell/cache_llc.h> 11 #include <drivers/marvell/mochi/ap_setup.h> 12 #include <drivers/rambus/trng_ip_76.h> 13 #include <lib/smccc.h> 14 15 #include <marvell_plat_priv.h> 16 #include <plat_marvell.h> 17 18 #include "comphy/phy-comphy-cp110.h" 19 #include <stdbool.h> 20 21 /* #define DEBUG_COMPHY */ 22 #ifdef DEBUG_COMPHY 23 #define debug(format...) NOTICE(format) 24 #else 25 #define debug(format, arg...) 26 #endif 27 28 /* Comphy related FID's */ 29 #define MV_SIP_COMPHY_POWER_ON 0x82000001 30 #define MV_SIP_COMPHY_POWER_OFF 0x82000002 31 #define MV_SIP_COMPHY_PLL_LOCK 0x82000003 32 #define MV_SIP_COMPHY_XFI_TRAIN 0x82000004 33 #define MV_SIP_COMPHY_DIG_RESET 0x82000005 34 35 /* Miscellaneous FID's' */ 36 #define MV_SIP_DRAM_SIZE 0x82000010 37 #define MV_SIP_LLC_ENABLE 0x82000011 38 #define MV_SIP_PMU_IRQ_ENABLE 0x82000012 39 #define MV_SIP_PMU_IRQ_DISABLE 0x82000013 40 41 /* TRNG */ 42 #define MV_SIP_RNG_64 0xC200FF11 43 44 #define MAX_LANE_NR 6 45 #define MVEBU_COMPHY_OFFSET 0x441000 46 #define MVEBU_CP_BASE_MASK (~0xffffff) 47 48 /* This macro is used to identify COMPHY related calls from SMC function ID */ 49 #define is_comphy_fid(fid) \ 50 ((fid) >= MV_SIP_COMPHY_POWER_ON && (fid) <= MV_SIP_COMPHY_DIG_RESET) 51 52 _Bool is_cp_range_valid(u_register_t *addr) 53 { 54 int cp_nr; 55 56 *addr &= MVEBU_CP_BASE_MASK; 57 for (cp_nr = 0; cp_nr < CP_NUM; cp_nr++) { 58 if (*addr == MVEBU_CP_REGS_BASE(cp_nr)) 59 return true; 60 } 61 62 return false; 63 } 64 65 uintptr_t mrvl_sip_smc_handler(uint32_t smc_fid, 66 u_register_t x1, 67 u_register_t x2, 68 u_register_t x3, 69 u_register_t x4, 70 void *cookie, 71 void *handle, 72 u_register_t flags) 73 { 74 u_register_t ret; 75 uint32_t w2[2] = {0, 0}; 76 int i; 77 78 debug("%s: got SMC (0x%x) x1 0x%lx, x2 0x%lx, x3 0x%lx\n", 79 __func__, smc_fid, x1, x2, x3); 80 81 if (is_comphy_fid(smc_fid)) { 82 /* validate address passed via x1 */ 83 if (!is_cp_range_valid(&x1)) { 84 ERROR("%s: Wrong smc (0x%x) address: %lx\n", 85 __func__, smc_fid, x1); 86 SMC_RET1(handle, SMC_UNK); 87 } 88 89 x1 += MVEBU_COMPHY_OFFSET; 90 91 if (x2 >= MAX_LANE_NR) { 92 ERROR("%s: Wrong smc (0x%x) lane nr: %lx\n", 93 __func__, smc_fid, x2); 94 SMC_RET1(handle, SMC_UNK); 95 } 96 } 97 98 switch (smc_fid) { 99 100 /* Comphy related FID's */ 101 case MV_SIP_COMPHY_POWER_ON: 102 /* x1: comphy_base, x2: comphy_index, x3: comphy_mode */ 103 ret = mvebu_cp110_comphy_power_on(x1, x2, x3); 104 SMC_RET1(handle, ret); 105 case MV_SIP_COMPHY_POWER_OFF: 106 /* x1: comphy_base, x2: comphy_index */ 107 ret = mvebu_cp110_comphy_power_off(x1, x2, x3); 108 SMC_RET1(handle, ret); 109 case MV_SIP_COMPHY_PLL_LOCK: 110 /* x1: comphy_base, x2: comphy_index */ 111 ret = mvebu_cp110_comphy_is_pll_locked(x1, x2); 112 SMC_RET1(handle, ret); 113 case MV_SIP_COMPHY_XFI_TRAIN: 114 /* x1: comphy_base, x2: comphy_index */ 115 ret = mvebu_cp110_comphy_xfi_rx_training(x1, x2); 116 SMC_RET1(handle, ret); 117 case MV_SIP_COMPHY_DIG_RESET: 118 /* x1: comphy_base, x2: comphy_index, x3: mode, x4: command */ 119 ret = mvebu_cp110_comphy_digital_reset(x1, x2, x3, x4); 120 SMC_RET1(handle, ret); 121 122 /* Miscellaneous FID's' */ 123 case MV_SIP_DRAM_SIZE: 124 ret = mvebu_get_dram_size(MVEBU_REGS_BASE); 125 SMC_RET1(handle, ret); 126 case MV_SIP_LLC_ENABLE: 127 for (i = 0; i < ap_get_count(); i++) 128 llc_runtime_enable(i); 129 130 SMC_RET1(handle, 0); 131 #ifdef MVEBU_PMU_IRQ_WA 132 case MV_SIP_PMU_IRQ_ENABLE: 133 mvebu_pmu_interrupt_enable(); 134 SMC_RET1(handle, 0); 135 case MV_SIP_PMU_IRQ_DISABLE: 136 mvebu_pmu_interrupt_disable(); 137 SMC_RET1(handle, 0); 138 #endif 139 case MV_SIP_RNG_64: 140 ret = eip76_rng_get_random((uint8_t *)&w2, 4 * (x1 % 2 + 1)); 141 SMC_RET3(handle, ret, w2[0], w2[1]); 142 default: 143 ERROR("%s: unhandled SMC (0x%x)\n", __func__, smc_fid); 144 SMC_RET1(handle, SMC_UNK); 145 } 146 } 147 148 /* Define a runtime service descriptor for fast SMC calls */ 149 DECLARE_RT_SVC( 150 marvell_sip_svc, 151 OEN_SIP_START, 152 OEN_SIP_END, 153 SMC_TYPE_FAST, 154 NULL, 155 mrvl_sip_smc_handler 156 ); 157