u-boot/arch/arm/include/asm/arch-mxs/clock.h
Otavio Salvador 0023997709 mxs: Add MX23 quirks into the clock code
The MX23 has different handling of the SSP clock and GPMI NAND clock sources,
add necessary quirks into the clock code to properly handle these.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
2013-01-21 12:05:22 +01:00

66 lines
1.6 KiB
C

/*
* Freescale i.MX23/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_XTAL_CLK,
MXC_SSP0_CLK,
#ifdef CONFIG_MX28
MXC_SSP1_CLK,
MXC_SSP2_CLK,
MXC_SSP3_CLK,
#endif
};
enum mxs_ioclock {
MXC_IOCLK0 = 0,
MXC_IOCLK1,
};
enum mxs_sspclock {
MXC_SSPCLK0 = 0,
#ifdef CONFIG_MX28
MXC_SSPCLK1,
MXC_SSPCLK2,
MXC_SSPCLK3,
#endif
};
uint32_t mxc_get_clock(enum mxc_clock clk);
void mxs_set_ioclk(enum mxs_ioclock io, uint32_t freq);
void mxs_set_sspclk(enum mxs_sspclock ssp, uint32_t freq, int xtal);
void mxs_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__ */