2007-10-07 22:08:52 +00:00
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/*
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*
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* (c) 2004 Sascha Hauer <sascha@saschahauer.de>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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2009-10-22 12:21:25 +00:00
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#include <mach/imx-regs.h>
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#include <mach/clock.h>
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2007-10-07 22:08:52 +00:00
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#include <init.h>
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#include <driver.h>
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2007-10-09 15:24:25 +00:00
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ulong imx_get_spllclk(void)
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2007-10-07 22:08:52 +00:00
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{
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return imx_decode_pll(SPCTL0, CONFIG_SYSPLL_CLK_FREQ);
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}
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2007-10-09 15:24:25 +00:00
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ulong imx_get_mpllclk(void)
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2007-10-07 22:08:52 +00:00
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{
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2007-10-16 12:46:29 +00:00
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return imx_decode_pll(MPCTL0, CONFIG_SYSPLL_CLK_FREQ);
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2007-10-07 22:08:52 +00:00
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}
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ulong imx_get_fclk(void)
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{
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2007-10-16 09:32:23 +00:00
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return (( CSCR>>15)&1) ? imx_get_mpllclk()>>1 : imx_get_mpllclk();
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2007-10-07 22:08:52 +00:00
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}
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ulong imx_get_hclk(void)
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{
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u32 bclkdiv = (( CSCR >> 10 ) & 0xf) + 1;
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2007-10-09 15:24:25 +00:00
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return imx_get_spllclk() / bclkdiv;
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2007-10-07 22:08:52 +00:00
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}
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ulong imx_get_bclk(void)
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{
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2007-10-16 09:32:23 +00:00
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return imx_get_hclk();
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2007-10-07 22:08:52 +00:00
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}
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ulong imx_get_perclk1(void)
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{
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2007-10-09 15:24:25 +00:00
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return imx_get_spllclk() / (((PCDR) & 0xf)+1);
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2007-10-07 22:08:52 +00:00
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}
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ulong imx_get_perclk2(void)
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{
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2007-10-09 15:24:25 +00:00
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return imx_get_spllclk() / (((PCDR>>4) & 0xf)+1);
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2007-10-07 22:08:52 +00:00
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}
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ulong imx_get_perclk3(void)
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{
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2007-10-09 15:24:25 +00:00
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return imx_get_spllclk() / (((PCDR>>16) & 0x7f)+1);
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2007-10-07 22:08:52 +00:00
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}
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2009-01-07 16:07:48 +00:00
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ulong imx_get_uartclk(void)
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{
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2009-02-20 17:14:52 +00:00
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return imx_get_perclk1();
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}
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ulong imx_get_gptclk(void)
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{
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2009-04-22 21:02:53 +00:00
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return imx_get_perclk1();
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2007-10-07 22:08:52 +00:00
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}
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2009-08-04 12:27:42 +00:00
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void imx_dump_clocks(void)
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{
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2011-01-07 10:35:14 +00:00
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printf("spll: %10ld Hz\n", imx_get_spllclk());
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printf("mpll: %10ld Hz\n", imx_get_mpllclk());
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printf("fclk: %10ld Hz\n", imx_get_fclk());
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printf("hclk: %10ld Hz\n", imx_get_hclk());
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printf("bclk: %10ld Hz\n", imx_get_bclk());
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printf("perclk1: %10ld Hz\n", imx_get_perclk1());
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printf("perclk2: %10ld Hz\n", imx_get_perclk2());
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printf("perclk3: %10ld Hz\n", imx_get_perclk3());
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printf("uart: %10ld Hz\n", imx_get_uartclk());
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printf("gpt: %10ld Hz\n", imx_get_gptclk());
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2009-08-04 12:27:42 +00:00
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}
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