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Marek Vasutc140e982011-11-08 23:18:08 +00001/*
2 * Freescale i.MX28 Clock
3 *
4 * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
5 * on behalf of DENX Software Engineering GmbH
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 *
21 */
22
23#ifndef __CLOCK_H__
24#define __CLOCK_H__
25
26enum mxc_clock {
27 MXC_ARM_CLK = 0,
28 MXC_AHB_CLK,
29 MXC_IPG_CLK,
30 MXC_EMI_CLK,
31 MXC_GPMI_CLK,
32 MXC_IO0_CLK,
33 MXC_IO1_CLK,
34 MXC_SSP0_CLK,
35 MXC_SSP1_CLK,
36 MXC_SSP2_CLK,
37 MXC_SSP3_CLK,
38};
39
40enum mxs_ioclock {
41 MXC_IOCLK0 = 0,
42 MXC_IOCLK1,
43};
44
45enum mxs_sspclock {
46 MXC_SSPCLK0 = 0,
47 MXC_SSPCLK1,
48 MXC_SSPCLK2,
49 MXC_SSPCLK3,
50};
51
52uint32_t mxc_get_clock(enum mxc_clock clk);
53
54void mx28_set_ioclk(enum mxs_ioclock io, uint32_t freq);
55void mx28_set_sspclk(enum mxs_sspclock ssp, uint32_t freq, int xtal);
56void mx28_set_ssp_busclock(unsigned int bus, uint32_t freq);
57
58/* Compatibility with the FEC Ethernet driver */
59#define imx_get_fecclk() mxc_get_clock(MXC_AHB_CLK)
60
61#endif /* __CLOCK_H__ */