1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3 * board.h
4 *
5 * TI AM335x boards information header
6 *
7 * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
8 */
9
10 #ifndef _BOARD_H_
11 #define _BOARD_H_
12
13 /**
14 * AM335X (EMIF_4D) EMIF REG_COS_COUNT_1, REG_COS_COUNT_2, and
15 * REG_PR_OLD_COUNT values to avoid LCDC DMA FIFO underflows and Frame
16 * Synchronization Lost errors. The values are the biggest that work
17 * reliably with offered video modes and the memory subsystem on the
18 * boards. These register have are briefly documented in "7.3.3.5.2
19 * Command Starvation" section of AM335x TRM. The REG_COS_COUNT_1 and
20 * REG_COS_COUNT_2 do not have any effect on current versions of
21 * AM335x.
22 */
23 #define EMIF_OCP_CONFIG_BEAGLEBONE_BLACK 0x00141414
24 #define EMIF_OCP_CONFIG_AM335X_EVM 0x003d3d3d
25
board_is_bone(void)26 static inline int board_is_bone(void)
27 {
28 return board_ti_is("A335BONE");
29 }
30
board_is_bone_lt(void)31 static inline int board_is_bone_lt(void)
32 {
33 return board_ti_is("A335BNLT");
34 }
35
board_is_pb(void)36 static inline int board_is_pb(void)
37 {
38 return board_ti_is("A335PBGL");
39 }
40
board_is_bbg1(void)41 static inline int board_is_bbg1(void)
42 {
43 return board_is_bone_lt() && !strncmp(board_ti_get_rev(), "BBG1", 4);
44 }
45
board_is_bben(void)46 static inline int board_is_bben(void)
47 {
48 return board_is_bone_lt() && !strncmp(board_ti_get_rev(), "SE", 2);
49 }
50
board_is_beaglebonex(void)51 static inline int board_is_beaglebonex(void)
52 {
53 return board_is_pb() || board_is_bone() || board_is_bone_lt() ||
54 board_is_bbg1() || board_is_bben();
55 }
56
board_is_evm_sk(void)57 static inline int board_is_evm_sk(void)
58 {
59 return board_ti_is("A335X_SK");
60 }
61
board_is_idk(void)62 static inline int board_is_idk(void)
63 {
64 return !strncmp(board_ti_get_config(), "SKU#02", 6);
65 }
66
board_is_gp_evm(void)67 static inline int board_is_gp_evm(void)
68 {
69 return board_ti_is("A33515BB");
70 }
71
board_is_evm_15_or_later(void)72 static inline int board_is_evm_15_or_later(void)
73 {
74 return (board_is_gp_evm() &&
75 strncmp("1.5", board_ti_get_rev(), 3) <= 0);
76 }
77
board_is_icev2(void)78 static inline int board_is_icev2(void)
79 {
80 return board_ti_is("A335_ICE") && !strncmp("2", board_ti_get_rev(), 1);
81 }
82
83 /*
84 * We have three pin mux functions that must exist. We must be able to enable
85 * uart0, for initial output and i2c0 to read the main EEPROM. We then have a
86 * main pinmux function that can be overridden to enable all other pinmux that
87 * is required on the board.
88 */
89 void enable_uart0_pin_mux(void);
90 void enable_uart1_pin_mux(void);
91 void enable_uart2_pin_mux(void);
92 void enable_uart3_pin_mux(void);
93 void enable_uart4_pin_mux(void);
94 void enable_uart5_pin_mux(void);
95 void enable_i2c0_pin_mux(void);
96 void enable_i2c2_pin_mux(void);
97 void enable_board_pin_mux(void);
98 #endif
99