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