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