1*5948f47fSBiju Das /* 2*5948f47fSBiju Das * Copyright (c) 2020, Renesas Electronics Corporation. All rights reserved. 3*5948f47fSBiju Das * 4*5948f47fSBiju Das * SPDX-License-Identifier: BSD-3-Clause 5*5948f47fSBiju Das */ 6*5948f47fSBiju Das 7*5948f47fSBiju Das #include <stdint.h> 8*5948f47fSBiju Das 9*5948f47fSBiju Das #include <lib/mmio.h> 10*5948f47fSBiju Das #include <lib/utils_def.h> 11*5948f47fSBiju Das 12*5948f47fSBiju Das #include "board.h" 13*5948f47fSBiju Das #include "rcar_def.h" 14*5948f47fSBiju Das 15*5948f47fSBiju Das #ifndef BOARD_DEFAULT 16*5948f47fSBiju Das #define BOARD_DEFAULT (BOARD_HIHOPE_RZ_G2M << BOARD_CODE_SHIFT) 17*5948f47fSBiju Das #endif /* BOARD_DEFAULT */ 18*5948f47fSBiju Das 19*5948f47fSBiju Das #define BOARD_CODE_MASK (0xF8U) 20*5948f47fSBiju Das #define BOARD_REV_MASK (0x07U) 21*5948f47fSBiju Das #define BOARD_CODE_SHIFT (0x03) 22*5948f47fSBiju Das #define BOARD_ID_UNKNOWN (0xFFU) 23*5948f47fSBiju Das 24*5948f47fSBiju Das #define GPIO_INDT5 0xE605500C 25*5948f47fSBiju Das #define GP5_19_BIT (0x01U << 19) 26*5948f47fSBiju Das #define GP5_21_BIT (0x01U << 21) 27*5948f47fSBiju Das #define GP5_25_BIT (0x01U << 25) 28*5948f47fSBiju Das 29*5948f47fSBiju Das #define HM_ID { 0x10U, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU } 30*5948f47fSBiju Das 31*5948f47fSBiju Das const char *g_board_tbl[] = { 32*5948f47fSBiju Das [BOARD_HIHOPE_RZ_G2M] = "HiHope RZ/G2M", 33*5948f47fSBiju Das [BOARD_UNKNOWN] = "unknown" 34*5948f47fSBiju Das }; 35*5948f47fSBiju Das 36*5948f47fSBiju Das void rzg_get_board_type(uint32_t *type, uint32_t *rev) 37*5948f47fSBiju Das { 38*5948f47fSBiju Das static uint8_t board_id = BOARD_ID_UNKNOWN; 39*5948f47fSBiju Das const uint8_t board_tbl[][8] = { 40*5948f47fSBiju Das [BOARD_HIHOPE_RZ_G2M] = HM_ID, 41*5948f47fSBiju Das }; 42*5948f47fSBiju Das uint32_t reg, boardInfo; 43*5948f47fSBiju Das 44*5948f47fSBiju Das if (board_id == BOARD_ID_UNKNOWN) { 45*5948f47fSBiju Das board_id = BOARD_DEFAULT; 46*5948f47fSBiju Das } 47*5948f47fSBiju Das 48*5948f47fSBiju Das *type = ((uint32_t) board_id & BOARD_CODE_MASK) >> BOARD_CODE_SHIFT; 49*5948f47fSBiju Das 50*5948f47fSBiju Das if (*type >= ARRAY_SIZE(board_tbl)) { 51*5948f47fSBiju Das /* no revision information, set Rev0.0. */ 52*5948f47fSBiju Das *rev = 0; 53*5948f47fSBiju Das } else { 54*5948f47fSBiju Das reg = mmio_read_32(RCAR_PRR); 55*5948f47fSBiju Das if ((reg & PRR_CUT_MASK) == RCAR_M3_CUT_VER11) { 56*5948f47fSBiju Das *rev = board_tbl[*type][(uint8_t)(board_id & BOARD_REV_MASK)]; 57*5948f47fSBiju Das } else { 58*5948f47fSBiju Das boardInfo = mmio_read_32(GPIO_INDT5) & 59*5948f47fSBiju Das (GP5_19_BIT | GP5_21_BIT); 60*5948f47fSBiju Das *rev = (((boardInfo & GP5_19_BIT) >> 14) | 61*5948f47fSBiju Das ((boardInfo & GP5_21_BIT) >> 17)) + 0x30U; 62*5948f47fSBiju Das } 63*5948f47fSBiju Das } 64*5948f47fSBiju Das } 65