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 #else 19 #define BOARD_DEFAULT (BOARD_HIHOPE_RZ_G2M << BOARD_CODE_SHIFT) 20 #endif /* RCAR_LSI == RZ_G2H */ 21 #endif /* BOARD_DEFAULT */ 22 23 #define BOARD_CODE_MASK (0xF8U) 24 #define BOARD_REV_MASK (0x07U) 25 #define BOARD_CODE_SHIFT (0x03) 26 #define BOARD_ID_UNKNOWN (0xFFU) 27 28 #define GPIO_INDT5 0xE605500C 29 #define GP5_19_BIT (0x01U << 19) 30 #define GP5_21_BIT (0x01U << 21) 31 #define GP5_25_BIT (0x01U << 25) 32 33 #define HM_ID { 0x10U, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU } 34 #define HH_ID HM_ID 35 36 const char *g_board_tbl[] = { 37 [BOARD_HIHOPE_RZ_G2M] = "HiHope RZ/G2M", 38 [BOARD_HIHOPE_RZ_G2H] = "HiHope RZ/G2H", 39 [BOARD_UNKNOWN] = "unknown" 40 }; 41 42 void rzg_get_board_type(uint32_t *type, uint32_t *rev) 43 { 44 static uint8_t board_id = BOARD_ID_UNKNOWN; 45 const uint8_t board_tbl[][8] = { 46 [BOARD_HIHOPE_RZ_G2M] = HM_ID, 47 [BOARD_HIHOPE_RZ_G2H] = HH_ID, 48 }; 49 uint32_t reg, boardInfo; 50 51 if (board_id == BOARD_ID_UNKNOWN) { 52 board_id = BOARD_DEFAULT; 53 } 54 55 *type = ((uint32_t) board_id & BOARD_CODE_MASK) >> BOARD_CODE_SHIFT; 56 57 if (*type >= ARRAY_SIZE(board_tbl)) { 58 /* no revision information, set Rev0.0. */ 59 *rev = 0; 60 return; 61 } 62 63 reg = mmio_read_32(RCAR_PRR); 64 if ((reg & PRR_CUT_MASK) == RCAR_M3_CUT_VER11) { 65 *rev = board_tbl[*type][(uint8_t)(board_id & BOARD_REV_MASK)]; 66 } else { 67 reg = mmio_read_32(GPIO_INDT5); 68 boardInfo = reg & (GP5_19_BIT | GP5_21_BIT); 69 *rev = (((boardInfo & GP5_19_BIT) >> 14) | 70 ((boardInfo & GP5_21_BIT) >> 17)) + 0x30U; 71 } 72 } 73