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/*
*
* @Component OMAPCONF
* @Filename cpuinfo44xx.c
* @Description OMAP4 CPU Info Functions
* @Author Patrick Titiano (p-titiano@ti.com)
* @Date 2011
* @Copyright Texas Instruments Incorporated
*
*
* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
*
* Neither the name of Texas Instruments Incorporated nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include <cpuinfo44xx.h>
#include <cpuinfo.h>
#include <lib.h>
#include <stdio.h>
#include <stdlib.h>
/* #define CPUID44XX_DEBUG */
#ifdef CPUID44XX_DEBUG
#define dprintf(format, ...) printf(format, ## __VA_ARGS__)
#else
#define dprintf(format, ...)
#endif
/* ------------------------------------------------------------------------*//**
* @FUNCTION cpu44xx_silicon_max_speed_get
* @BRIEF return silicon max speed (depending on cpu type and
* silicon type)
* @RETURNS Silicon max speed (in MHz)
* 0 in case of error
* @DESCRIPTION return silicon max speed (depending on cpu type and
* silicon type)
*//*------------------------------------------------------------------------ */
unsigned int cpu44xx_silicon_max_speed_get(void)
{
unsigned int max_speed;
switch (cpu_get()) {
case OMAP_4430:
switch (cpu_silicon_type_get()) {
case LOW_PERF_SI:
max_speed = 800;
break;
case STANDARD_PERF_SI:
max_speed = 1000;
break;
case HIGH_PERF_SI:
max_speed = 1200;
break;
default:
max_speed = 0;
break;
}
break;
case OMAP_4460:
switch (cpu_silicon_type_get()) {
case STANDARD_PERF_SI:
max_speed = 1200;
break;
case HIGH_PERF_SI:
max_speed = 1500;
break;
default:
max_speed = 0;
break;
}
break;
case OMAP_4470:
switch (cpu_silicon_type_get()) {
case STANDARD_PERF_SI:
max_speed = 1300;
break;
case HIGH_PERF_SI:
max_speed = 1500;
break;
default:
max_speed = 0;
break;
}
break;
default:
fprintf(stderr, "%s(): unknown chip!\n", __func__);
max_speed = 0;
}
dprintf("%s(): max speed = %dMHz\n", __func__, max_speed);
return max_speed;
}
/* ------------------------------------------------------------------------*//**
* @FUNCTION cpu44xx_cores_count_get
* @BRIEF return the number of CPU cores available
* @RETURNS >0 number of CPU cores available
* 0 in case of error (unknown architecture)
* @param[in] none
* @DESCRIPTION return the number of CPU cores available
*//*------------------------------------------------------------------------ */
unsigned int cpu44xx_cores_count_get(void)
{
if (cpu_is_omap44xx()) {
return 2;
} else {
fprintf(stderr, "%s(): unknown architecture!\n", __func__);
return 0;
}
}
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