diff options
Diffstat (limited to 'arch/arm/include/asm/arch-mxs/clock.h')
| -rw-r--r-- | arch/arm/include/asm/arch-mxs/clock.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-mxs/clock.h b/arch/arm/include/asm/arch-mxs/clock.h new file mode 100644 index 0000000000..1700fe3915 --- /dev/null +++ b/arch/arm/include/asm/arch-mxs/clock.h @@ -0,0 +1,61 @@ +/* + * Freescale i.MX28 Clock + * + * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com> + * on behalf of DENX Software Engineering GmbH + * + * 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 + * + */ + +#ifndef __CLOCK_H__ +#define __CLOCK_H__ + +enum mxc_clock { + MXC_ARM_CLK = 0, + MXC_AHB_CLK, + MXC_IPG_CLK, + MXC_EMI_CLK, + MXC_GPMI_CLK, + MXC_IO0_CLK, + MXC_IO1_CLK, + MXC_SSP0_CLK, + MXC_SSP1_CLK, + MXC_SSP2_CLK, + MXC_SSP3_CLK, +}; + +enum mxs_ioclock { + MXC_IOCLK0 = 0, + MXC_IOCLK1, +}; + +enum mxs_sspclock { + MXC_SSPCLK0 = 0, + MXC_SSPCLK1, + MXC_SSPCLK2, + MXC_SSPCLK3, +}; + +uint32_t mxc_get_clock(enum mxc_clock clk); + +void mx28_set_ioclk(enum mxs_ioclock io, uint32_t freq); +void mx28_set_sspclk(enum mxs_sspclock ssp, uint32_t freq, int xtal); +void mx28_set_ssp_busclock(unsigned int bus, uint32_t freq); + +/* Compatibility with the FEC Ethernet driver */ +#define imx_get_fecclk() mxc_get_clock(MXC_AHB_CLK) + +#endif /* __CLOCK_H__ */ |