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view src/cs/riviera/rv/rv_trace.h @ 629:3231dd9b38c1

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armio.c: make GPIOs 8 & 13 outputs driving 1 on all "classic" targets Calypso GPIOs 8 & 13 are pinmuxed with MCUEN1 & MCUEN2, respectively, and on powerup these pins are MCUEN, i.e., outputs driving 1. TI's code for C-Sample and earlier turns them into GPIOs configured as outputs also driving 1 - so far, so good - but TI's code for BOARD 41 (which covers D-Sample, Leonardo and all real world Calypso devices derived from the latter) switches them from MCUEN to GPIOs, but then leaves them as inputs. Given that the hardware powerup state of these two pins is outputs driving 1, every Calypso board design MUST be compatible with such driving; typically these GPIO signals will be either unused and unconnected or connected as outputs driving some peripheral. Turning these pins into GPIO inputs will result in floating inputs on every reasonably-wired board, thus I am convinced that this configuration is nothing but a bug on the part of whoever wrote this code at TI. This floating input bug had already been fixed earlier for GTA modem and FCDEV3B targets; the present change makes the fix unconditional for all "classic" targets. The newly affected targets are D-Sample, Leonardo, Tango and GTM900.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 02 Jan 2020 05:38:26 +0000
parents 945cf7f506b2
children
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/************************************************************************************* 
 *																			         * 
 *  Name        rv_trace.h													         * 
 *																			         * 
 *  Function    this file contains trace definitions for basic layers		         * 
 *																			         * 
 *  Date        Modification                                                         * 
 *  ------------------------												         * 
 *  10/12/00	 - Create Cristian Livadiotti - c-livadiotti@ti.com			         * 
 *																			         * 
 *																			         * 
 * (C) Copyright 1999 by Texas Instruments Incorporated, All Rights Reserved         * 
 *                                                                                   *
 * --------------------------------------------------------------------------------- *
 *                                                                                   *
 *   History:                                                                        *
 *                                                                                   *
 *   10/18/2001 - Updated for R2D by Christophe Favergeon		                     * 
 *                                                                                   *
 *************************************************************************************/

#ifndef _RV_TRACE_H_
#define _RV_TRACE_H_



/* Define trace levels.                                                          */
#define RV_TRACE_LEVEL_ERROR		(1)		/* Error condition trace messages.   */
											/* Used when an unrecoverable error is found */
#define RV_TRACE_LEVEL_WARNING		(2)		/* Warning condition trace messages. */
											/* Used when an error is found but is handled properly by the code*/
#define RV_TRACE_LEVEL_DEBUG_HIGH	(3)		/* Debug messages (high debugging).  */
                                            /* high = important debug message */
#define RV_TRACE_LEVEL_DEBUG_MEDIUM	(4)		/* Debug messages.                   */
#define RV_TRACE_LEVEL_DEBUG_LOW	(5)		/* Debug messages (low debugging).   */
                                            /* low = not important debug message */

/* temporary definition of this old flag for backward compatibility */
#define TRACE_RVTEST				(0x001E0004)

#endif /* _RV_GENERAL_H_*/