1 /* 2 * Copyright (c) 2020-2021, Renesas Electronics Corporation. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <stdint.h> 8 9 #include <lib/mmio.h> 10 #include <lib/utils_def.h> 11 12 #include "board.h" 13 #include "rcar_def.h" 14 15 #ifndef BOARD_DEFAULT 16 #if (RCAR_LSI == RZ_G2H) 17 #define BOARD_DEFAULT (BOARD_HIHOPE_RZ_G2H << BOARD_CODE_SHIFT) 18 #elif (RCAR_LSI == RZ_G2N) 19 #define BOARD_DEFAULT (BOARD_HIHOPE_RZ_G2N << BOARD_CODE_SHIFT) 20 #else 21 #define BOARD_DEFAULT (BOARD_HIHOPE_RZ_G2M << BOARD_CODE_SHIFT) 22 #endif /* RCAR_LSI == RZ_G2H */ 23 #endif /* BOARD_DEFAULT */ 24 25 #define BOARD_CODE_MASK (0xF8U) 26 #define BOARD_REV_MASK (0x07U) 27 #define BOARD_CODE_SHIFT (0x03) 28 #define BOARD_ID_UNKNOWN (0xFFU) 29 30 #define GPIO_INDT5 0xE605500C 31 #define GP5_19_BIT (0x01U << 19) 32 #define GP5_21_BIT (0x01U << 21) 33 #define GP5_25_BIT (0x01U << 25) 34 35 #define HM_ID { 0x10U, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU } 36 #define HH_ID HM_ID 37 #define HN_ID { 0x20U, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU } 38 39 const char *g_board_tbl[] = { 40 [BOARD_HIHOPE_RZ_G2M] = "HiHope RZ/G2M", 41 [BOARD_HIHOPE_RZ_G2H] = "HiHope RZ/G2H", 42 [BOARD_HIHOPE_RZ_G2N] = "HiHope RZ/G2N", 43 [BOARD_UNKNOWN] = "unknown" 44 }; 45 46 void rzg_get_board_type(uint32_t *type, uint32_t *rev) 47 { 48 static uint8_t board_id = BOARD_ID_UNKNOWN; 49 const uint8_t board_tbl[][8] = { 50 [BOARD_HIHOPE_RZ_G2M] = HM_ID, 51 [BOARD_HIHOPE_RZ_G2H] = HH_ID, 52 [BOARD_HIHOPE_RZ_G2N] = HN_ID, 53 }; 54 uint32_t reg, boardInfo; 55 56 if (board_id == BOARD_ID_UNKNOWN) { 57 board_id = BOARD_DEFAULT; 58 } 59 60 *type = ((uint32_t) board_id & BOARD_CODE_MASK) >> BOARD_CODE_SHIFT; 61 62 if (*type >= ARRAY_SIZE(board_tbl)) { 63 /* no revision information, set Rev0.0. */ 64 *rev = 0; 65 return; 66 } 67 68 reg = mmio_read_32(RCAR_PRR); 69 if ((reg & PRR_CUT_MASK) == RCAR_M3_CUT_VER11) { 70 *rev = board_tbl[*type][(uint8_t)(board_id & BOARD_REV_MASK)]; 71 } else { 72 reg = mmio_read_32(GPIO_INDT5); 73 if (reg & GP5_25_BIT) { 74 *rev = board_tbl[*type][(uint8_t)(board_id & BOARD_REV_MASK)]; 75 } else { 76 boardInfo = reg & (GP5_19_BIT | GP5_21_BIT); 77 *rev = (((boardInfo & GP5_19_BIT) >> 14) | 78 ((boardInfo & GP5_21_BIT) >> 17)) + 0x30U; 79 } 80 } 81 } 82