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6422b70bd5
If configured to use UART{1,2,3,4,5} such as on the Beaglebone RS232
cape or on the am335x_evm daughterboard, enable the proper pin-muxing.
Signed-off-by: Andrew Bradford <andrew@bradfordembedded.com>
54 lines
1.7 KiB
C
54 lines
1.7 KiB
C
/*
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* board.h
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*
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* TI AM335x boards information header
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*
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* Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR /PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _BOARD_H_
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#define _BOARD_H_
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/*
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* TI AM335x parts define a system EEPROM that defines certain sub-fields.
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* We use these fields to in turn see what board we are on, and what
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* that might require us to set or not set.
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*/
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#define HDR_NO_OF_MAC_ADDR 3
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#define HDR_ETH_ALEN 6
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#define HDR_NAME_LEN 8
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struct am335x_baseboard_id {
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unsigned int magic;
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char name[HDR_NAME_LEN];
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char version[4];
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char serial[12];
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char config[32];
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char mac_addr[HDR_NO_OF_MAC_ADDR][HDR_ETH_ALEN];
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};
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/*
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* We have three pin mux functions that must exist. We must be able to enable
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* uart0, for initial output and i2c0 to read the main EEPROM. We then have a
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* main pinmux function that can be overridden to enable all other pinmux that
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* is required on the board.
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*/
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void enable_uart0_pin_mux(void);
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void enable_uart1_pin_mux(void);
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void enable_uart2_pin_mux(void);
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void enable_uart3_pin_mux(void);
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void enable_uart4_pin_mux(void);
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void enable_uart5_pin_mux(void);
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void enable_i2c0_pin_mux(void);
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void enable_board_pin_mux(struct am335x_baseboard_id *header);
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#endif
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