| Konstantin Porotchkin | 486f868 | 2018-06-07 18:31:14 +0300 | [diff] [blame] | 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 <ap_setup.h> |
| 9 | #include <cache_llc.h> |
| 10 | #include <debug.h> |
| 11 | #include <marvell_plat_priv.h> |
| 12 | #include <runtime_svc.h> |
| 13 | #include <smcc.h> |
| 14 | #include "comphy/phy-comphy-cp110.h" |
| 15 | |
| 16 | /* #define DEBUG_COMPHY */ |
| 17 | #ifdef DEBUG_COMPHY |
| 18 | #define debug(format...) NOTICE(format) |
| 19 | #else |
| 20 | #define debug(format, arg...) |
| 21 | #endif |
| 22 | |
| 23 | /* Comphy related FID's */ |
| 24 | #define MV_SIP_COMPHY_POWER_ON 0x82000001 |
| 25 | #define MV_SIP_COMPHY_POWER_OFF 0x82000002 |
| 26 | #define MV_SIP_COMPHY_PLL_LOCK 0x82000003 |
| 27 | #define MV_SIP_COMPHY_XFI_TRAIN 0x82000004 |
| 28 | #define MV_SIP_COMPHY_DIG_RESET 0x82000005 |
| 29 | |
| 30 | /* Miscellaneous FID's' */ |
| 31 | #define MV_SIP_DRAM_SIZE 0x82000010 |
| 32 | #define MV_SIP_LLC_ENABLE 0x82000011 |
| 33 | |
| 34 | #define MAX_LANE_NR 6 |
| 35 | #define MVEBU_COMPHY_OFFSET 0x441000 |
| 36 | #define MVEBU_SD_OFFSET 0x120000 |
| 37 | |
| 38 | /* This macro is used to identify COMPHY related calls from SMC function ID */ |
| 39 | #define is_comphy_fid(fid) \ |
| 40 | ((fid) >= MV_SIP_COMPHY_POWER_ON && (fid) <= MV_SIP_COMPHY_DIG_RESET) |
| 41 | |
| 42 | |
| 43 | uintptr_t mrvl_sip_smc_handler(uint32_t smc_fid, |
| 44 | u_register_t x1, |
| 45 | u_register_t x2, |
| 46 | u_register_t x3, |
| 47 | u_register_t x4, |
| 48 | void *cookie, |
| 49 | void *handle, |
| 50 | u_register_t flags) |
| 51 | { |
| 52 | u_register_t ret; |
| 53 | int i; |
| 54 | |
| 55 | debug("%s: got SMC (0x%x) x1 0x%lx, x2 0x%lx, x3 0x%lx\n", |
| 56 | __func__, smc_fid, x1, x2, x3); |
| 57 | if (is_comphy_fid(smc_fid)) { |
| 58 | |
| 59 | /* some systems passes SD phys address instead of COMPHY phys |
| 60 | * address - convert it |
| 61 | */ |
| 62 | if (x1 & MVEBU_SD_OFFSET) |
| 63 | x1 = (x1 & ~0xffffff) + MVEBU_COMPHY_OFFSET; |
| 64 | |
| 65 | if ((x1 & 0xffffff) != MVEBU_COMPHY_OFFSET) { |
| 66 | ERROR("%s: Wrong smc (0x%x) address: %lx\n", |
| 67 | __func__, smc_fid, x1); |
| 68 | SMC_RET1(handle, SMC_UNK); |
| 69 | } |
| 70 | |
| 71 | if (x2 >= MAX_LANE_NR) { |
| 72 | ERROR("%s: Wrong smc (0x%x) lane nr: %lx\n", |
| 73 | __func__, smc_fid, x2); |
| 74 | SMC_RET1(handle, SMC_UNK); |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | switch (smc_fid) { |
| 79 | |
| 80 | /* Comphy related FID's */ |
| 81 | case MV_SIP_COMPHY_POWER_ON: |
| 82 | /* x1: comphy_base, x2: comphy_index, x3: comphy_mode */ |
| 83 | ret = mvebu_cp110_comphy_power_on(x1, x2, x3); |
| 84 | SMC_RET1(handle, ret); |
| 85 | case MV_SIP_COMPHY_POWER_OFF: |
| 86 | /* x1: comphy_base, x2: comphy_index */ |
| 87 | ret = mvebu_cp110_comphy_power_off(x1, x2); |
| 88 | SMC_RET1(handle, ret); |
| 89 | case MV_SIP_COMPHY_PLL_LOCK: |
| 90 | /* x1: comphy_base, x2: comphy_index */ |
| 91 | ret = mvebu_cp110_comphy_is_pll_locked(x1, x2); |
| 92 | SMC_RET1(handle, ret); |
| 93 | case MV_SIP_COMPHY_XFI_TRAIN: |
| 94 | /* x1: comphy_base, x2: comphy_index */ |
| 95 | ret = mvebu_cp110_comphy_xfi_rx_training(x1, x2); |
| 96 | SMC_RET1(handle, ret); |
| 97 | case MV_SIP_COMPHY_DIG_RESET: |
| 98 | /* x1: comphy_base, x2: comphy_index, x3: mode, x4: command */ |
| 99 | ret = mvebu_cp110_comphy_digital_reset(x1, x2, x3, x4); |
| 100 | SMC_RET1(handle, ret); |
| 101 | |
| 102 | /* Miscellaneous FID's' */ |
| 103 | case MV_SIP_DRAM_SIZE: |
| 104 | /* x1: ap_base_addr */ |
| 105 | ret = mvebu_get_dram_size(x1); |
| 106 | SMC_RET1(handle, ret); |
| 107 | case MV_SIP_LLC_ENABLE: |
| 108 | for (i = 0; i < ap_get_count(); i++) |
| 109 | llc_runtime_enable(i); |
| 110 | |
| 111 | SMC_RET1(handle, 0); |
| 112 | |
| 113 | default: |
| 114 | ERROR("%s: unhandled SMC (0x%x)\n", __func__, smc_fid); |
| 115 | SMC_RET1(handle, SMC_UNK); |
| 116 | } |
| 117 | } |
| 118 | |
| 119 | /* Define a runtime service descriptor for fast SMC calls */ |
| 120 | DECLARE_RT_SVC( |
| 121 | marvell_sip_svc, |
| 122 | OEN_SIP_START, |
| 123 | OEN_SIP_END, |
| 124 | SMC_TYPE_FAST, |
| 125 | NULL, |
| 126 | mrvl_sip_smc_handler |
| 127 | ); |