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https://github.com/AsahiLinux/u-boot
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1a4596601f
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
44 lines
838 B
C
44 lines
838 B
C
/*
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* Copyright (c) 2009 Wind River Systems, Inc.
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* Tom Rix <Tom.Rix@windriver.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <asm/arch/cpu.h>
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#include <asm/io.h>
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#include <asm/arch/mux.h>
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#include <asm/gpio.h>
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#define DEBUG_BOARD_CONNECTED 1
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#define DEBUG_BOARD_NOT_CONNECTED 0
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static int debug_board_connected = DEBUG_BOARD_CONNECTED;
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static void zoom2_debug_board_detect (void)
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{
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int val = 0;
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if (!gpio_request(158, "")) {
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/*
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* GPIO to query for debug board
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* 158 db board query
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*/
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gpio_direction_input(158);
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val = gpio_get_value(158);
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}
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if (!val)
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debug_board_connected = DEBUG_BOARD_NOT_CONNECTED;
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}
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int zoom2_debug_board_connected (void)
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{
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static int first_time = 1;
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if (first_time) {
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zoom2_debug_board_detect ();
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first_time = 0;
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}
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return debug_board_connected;
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}
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