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/*
*
* (c) 2004 Sascha Hauer <sascha@saschahauer.de>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <common.h>
#include <mach/imx-regs.h>
#include <mach/clock.h>
#include <init.h>
#include <driver.h>
ulong imx_get_spllclk(void)
{
return imx_decode_pll(SPCTL0, CONFIG_SYSPLL_CLK_FREQ);
}
ulong imx_get_mpllclk(void)
{
return imx_decode_pll(MPCTL0, CONFIG_SYSPLL_CLK_FREQ);
}
ulong imx_get_fclk(void)
{
return (( CSCR>>15)&1) ? imx_get_mpllclk()>>1 : imx_get_mpllclk();
}
ulong imx_get_hclk(void)
{
u32 bclkdiv = (( CSCR >> 10 ) & 0xf) + 1;
return imx_get_spllclk() / bclkdiv;
}
ulong imx_get_bclk(void)
{
return imx_get_hclk();
}
ulong imx_get_perclk1(void)
{
return imx_get_spllclk() / (((PCDR) & 0xf)+1);
}
ulong imx_get_perclk2(void)
{
return imx_get_spllclk() / (((PCDR>>4) & 0xf)+1);
}
ulong imx_get_perclk3(void)
{
return imx_get_spllclk() / (((PCDR>>16) & 0x7f)+1);
}
ulong imx_get_uartclk(void)
{
return imx_get_perclk1();
}
ulong imx_get_gptclk(void)
{
return imx_get_perclk1();
}
void imx_dump_clocks(void)
{
printf("spll: %10ld Hz\n", imx_get_spllclk());
printf("mpll: %10ld Hz\n", imx_get_mpllclk());
printf("fclk: %10ld Hz\n", imx_get_fclk());
printf("hclk: %10ld Hz\n", imx_get_hclk());
printf("bclk: %10ld Hz\n", imx_get_bclk());
printf("perclk1: %10ld Hz\n", imx_get_perclk1());
printf("perclk2: %10ld Hz\n", imx_get_perclk2());
printf("perclk3: %10ld Hz\n", imx_get_perclk3());
printf("uart: %10ld Hz\n", imx_get_uartclk());
printf("gpt: %10ld Hz\n", imx_get_gptclk());
}
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