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/*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/clock.h>
#include <init.h>
ulong imx_get_mpl_dpdgck_clk(void)
{
ulong infreq;
if ((__REG(CCM_CCMR) & CCMR_PRCS_MASK) == CCMR_FPM)
infreq = CONFIG_MX31_CLK32 * 1024;
else
infreq = CONFIG_MX31_HCLK_FREQ;
return imx_decode_pll(__REG(CCM_MPCTL), infreq);
}
ulong imx_get_mcu_main_clk(void)
{
/* For now we assume mpl_dpdgck_clk == mcu_main_clk
* which should be correct for most boards
*/
return imx_get_mpl_dpdgck_clk();
}
ulong imx_get_perclk1(void)
{
u32 freq = imx_get_mcu_main_clk();
u32 pdr0 = __REG(CCM_PDR0);
freq /= ((pdr0 >> 3) & 0x7) + 1;
freq /= ((pdr0 >> 6) & 0x3) + 1;
return freq;
}
int imx_dump_clocks(void)
{
ulong cpufreq = imx_get_mcu_main_clk();
printf("mx31 cpu clock: %dMHz\n",cpufreq / 1000000);
printf("ipg clock : %dHz\n", imx_get_perclk1());
return 0;
}
ulong imx_get_uartclk(void)
{
return imx_get_perclk1();
}
late_initcall(imx_dump_clocks);
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