1 /* 2 * Copyright (c) 2020, 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 #define BOARD_DEFAULT (BOARD_HIHOPE_RZ_G2M << BOARD_CODE_SHIFT) 17 #endif /* BOARD_DEFAULT */ 18 19 #define BOARD_CODE_MASK (0xF8U) 20 #define BOARD_REV_MASK (0x07U) 21 #define BOARD_CODE_SHIFT (0x03) 22 #define BOARD_ID_UNKNOWN (0xFFU) 23 24 #define GPIO_INDT5 0xE605500C 25 #define GP5_19_BIT (0x01U << 19) 26 #define GP5_21_BIT (0x01U << 21) 27 #define GP5_25_BIT (0x01U << 25) 28 29 #define HM_ID { 0x10U, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU } 30 31 const char *g_board_tbl[] = { 32 [BOARD_HIHOPE_RZ_G2M] = "HiHope RZ/G2M", 33 [BOARD_UNKNOWN] = "unknown" 34 }; 35 36 void rzg_get_board_type(uint32_t *type, uint32_t *rev) 37 { 38 static uint8_t board_id = BOARD_ID_UNKNOWN; 39 const uint8_t board_tbl[][8] = { 40 [BOARD_HIHOPE_RZ_G2M] = HM_ID, 41 }; 42 uint32_t reg, boardInfo; 43 44 if (board_id == BOARD_ID_UNKNOWN) { 45 board_id = BOARD_DEFAULT; 46 } 47 48 *type = ((uint32_t) board_id & BOARD_CODE_MASK) >> BOARD_CODE_SHIFT; 49 50 if (*type >= ARRAY_SIZE(board_tbl)) { 51 /* no revision information, set Rev0.0. */ 52 *rev = 0; 53 } else { 54 reg = mmio_read_32(RCAR_PRR); 55 if ((reg & PRR_CUT_MASK) == RCAR_M3_CUT_VER11) { 56 *rev = board_tbl[*type][(uint8_t)(board_id & BOARD_REV_MASK)]; 57 } else { 58 boardInfo = mmio_read_32(GPIO_INDT5) & 59 (GP5_19_BIT | GP5_21_BIT); 60 *rev = (((boardInfo & GP5_19_BIT) >> 14) | 61 ((boardInfo & GP5_21_BIT) >> 17)) + 0x30U; 62 } 63 } 64 } 65