1*54fd6939SJiyong Park /*
2*54fd6939SJiyong Park * Copyright (c) 2015-2021, Renesas Electronics Corporation. All rights
3*54fd6939SJiyong Park * reserved.
4*54fd6939SJiyong Park *
5*54fd6939SJiyong Park * SPDX-License-Identifier: BSD-3-Clause
6*54fd6939SJiyong Park */
7*54fd6939SJiyong Park
8*54fd6939SJiyong Park #include <stdint.h>
9*54fd6939SJiyong Park
10*54fd6939SJiyong Park #include <lib/utils_def.h>
11*54fd6939SJiyong Park
12*54fd6939SJiyong Park #include <iic_dvfs.h>
13*54fd6939SJiyong Park
14*54fd6939SJiyong Park #include "board.h"
15*54fd6939SJiyong Park
16*54fd6939SJiyong Park #ifndef BOARD_DEFAULT
17*54fd6939SJiyong Park #if (RCAR_LSI == RCAR_D3)
18*54fd6939SJiyong Park #define BOARD_DEFAULT (BOARD_DRAAK << BOARD_CODE_SHIFT)
19*54fd6939SJiyong Park #elif (RCAR_LSI == RCAR_E3)
20*54fd6939SJiyong Park #define BOARD_DEFAULT (BOARD_EBISU << BOARD_CODE_SHIFT)
21*54fd6939SJiyong Park #elif (RCAR_LSI == RCAR_V3M)
22*54fd6939SJiyong Park #define BOARD_DEFAULT (BOARD_EAGLE << BOARD_CODE_SHIFT)
23*54fd6939SJiyong Park #else
24*54fd6939SJiyong Park #define BOARD_DEFAULT (BOARD_SALVATOR_X << BOARD_CODE_SHIFT)
25*54fd6939SJiyong Park #endif
26*54fd6939SJiyong Park #endif
27*54fd6939SJiyong Park
28*54fd6939SJiyong Park #define BOARD_CODE_MASK (0xF8)
29*54fd6939SJiyong Park #define BOARD_REV_MASK (0x07)
30*54fd6939SJiyong Park #define BOARD_CODE_SHIFT (0x03)
31*54fd6939SJiyong Park #define BOARD_ID_UNKNOWN (0xFF)
32*54fd6939SJiyong Park
33*54fd6939SJiyong Park #define SXS_ID { 0x10U, 0x11U, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU }
34*54fd6939SJiyong Park #define SX_ID { 0x10U, 0x11U, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU }
35*54fd6939SJiyong Park #define SKP_ID { 0x10U, 0x10U, 0x20U, 0x21U, 0xFFU, 0xFFU, 0xFFU, 0xFFU }
36*54fd6939SJiyong Park #define SK_ID { 0x10U, 0x30U, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU }
37*54fd6939SJiyong Park #define EB4_ID { 0x10U, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU }
38*54fd6939SJiyong Park #define EB_ID { 0x10U, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU }
39*54fd6939SJiyong Park #define DR_ID { 0x10U, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU }
40*54fd6939SJiyong Park #define EA_ID { 0x10U, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU }
41*54fd6939SJiyong Park #define KK_ID { 0x10U, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU }
42*54fd6939SJiyong Park
43*54fd6939SJiyong Park const char *g_board_tbl[] = {
44*54fd6939SJiyong Park [BOARD_STARTER_KIT_PRE] = "Starter Kit Premier",
45*54fd6939SJiyong Park [BOARD_STARTER_KIT] = "Starter Kit",
46*54fd6939SJiyong Park [BOARD_SALVATOR_XS] = "Salvator-XS",
47*54fd6939SJiyong Park [BOARD_SALVATOR_X] = "Salvator-X",
48*54fd6939SJiyong Park [BOARD_EBISU_4D] = "Ebisu-4D",
49*54fd6939SJiyong Park [BOARD_KRIEK] = "Kriek",
50*54fd6939SJiyong Park [BOARD_EBISU] = "Ebisu",
51*54fd6939SJiyong Park [BOARD_DRAAK] = "Draak",
52*54fd6939SJiyong Park [BOARD_EAGLE] = "Eagle",
53*54fd6939SJiyong Park [BOARD_UNKNOWN] = "unknown"
54*54fd6939SJiyong Park };
55*54fd6939SJiyong Park
rcar_get_board_type(uint32_t * type,uint32_t * rev)56*54fd6939SJiyong Park int32_t rcar_get_board_type(uint32_t *type, uint32_t *rev)
57*54fd6939SJiyong Park {
58*54fd6939SJiyong Park int32_t ret = 0;
59*54fd6939SJiyong Park const uint8_t board_tbl[][8] = {
60*54fd6939SJiyong Park [BOARD_STARTER_KIT_PRE] = SKP_ID,
61*54fd6939SJiyong Park [BOARD_SALVATOR_XS] = SXS_ID,
62*54fd6939SJiyong Park [BOARD_STARTER_KIT] = SK_ID,
63*54fd6939SJiyong Park [BOARD_SALVATOR_X] = SX_ID,
64*54fd6939SJiyong Park [BOARD_EBISU_4D] = EB4_ID,
65*54fd6939SJiyong Park [BOARD_EBISU] = EB_ID,
66*54fd6939SJiyong Park [BOARD_DRAAK] = DR_ID,
67*54fd6939SJiyong Park [BOARD_EAGLE] = EA_ID,
68*54fd6939SJiyong Park [BOARD_KRIEK] = KK_ID,
69*54fd6939SJiyong Park };
70*54fd6939SJiyong Park static uint8_t board_id = BOARD_ID_UNKNOWN;
71*54fd6939SJiyong Park
72*54fd6939SJiyong Park if (board_id != BOARD_ID_UNKNOWN)
73*54fd6939SJiyong Park goto get_type;
74*54fd6939SJiyong Park
75*54fd6939SJiyong Park #if PMIC_ROHM_BD9571
76*54fd6939SJiyong Park /* Board ID detection from EEPROM */
77*54fd6939SJiyong Park ret = rcar_iic_dvfs_receive(EEPROM, BOARD_ID, &board_id);
78*54fd6939SJiyong Park if (ret) {
79*54fd6939SJiyong Park board_id = BOARD_ID_UNKNOWN;
80*54fd6939SJiyong Park goto get_type;
81*54fd6939SJiyong Park }
82*54fd6939SJiyong Park
83*54fd6939SJiyong Park if (board_id == BOARD_ID_UNKNOWN)
84*54fd6939SJiyong Park board_id = BOARD_DEFAULT;
85*54fd6939SJiyong Park #else
86*54fd6939SJiyong Park board_id = BOARD_DEFAULT;
87*54fd6939SJiyong Park #endif
88*54fd6939SJiyong Park
89*54fd6939SJiyong Park get_type:
90*54fd6939SJiyong Park *type = ((uint32_t) board_id & BOARD_CODE_MASK) >> BOARD_CODE_SHIFT;
91*54fd6939SJiyong Park
92*54fd6939SJiyong Park if (*type >= ARRAY_SIZE(board_tbl)) {
93*54fd6939SJiyong Park /* no revision information, set Rev0.0. */
94*54fd6939SJiyong Park *rev = 0;
95*54fd6939SJiyong Park return ret;
96*54fd6939SJiyong Park }
97*54fd6939SJiyong Park
98*54fd6939SJiyong Park *rev = board_tbl[*type][(uint8_t) (board_id & BOARD_REV_MASK)];
99*54fd6939SJiyong Park
100*54fd6939SJiyong Park return ret;
101*54fd6939SJiyong Park }
102