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/*
* clock.h - implementation of the PXA clock functions
*
* Copyright (C) 2010 by Marc Kleine-Budde <mkl@pengutronix.de>
*
* This file is released under the GPLv2
*
*/
#include <common.h>
#include <mach/clock.h>
#include <mach/pxa-regs.h>
/* Crystal clock: 13MHz */
#define BASE_CLK 13000000
unsigned long pxa_get_uartclk(void)
{
return 14857000;
}
unsigned long pxa_get_mmcclk(void)
{
return 19500000;
}
/*
* Return the current LCD clock frequency in units of 10kHz as
*/
static unsigned int pxa_get_lcdclk_10khz(void)
{
unsigned long ccsr;
unsigned int l, L, k, K;
ccsr = CCSR;
l = ccsr & 0x1f;
k = (l <= 7) ? 1 : (l <= 16) ? 2 : 4;
L = l * BASE_CLK;
K = L / k;
return (K / 10000);
}
unsigned long pxa_get_lcdclk(void)
{
return pxa_get_lcdclk_10khz() * 10000;
}
unsigned long pxa_get_pwmclk(void)
{
return BASE_CLK;
}
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