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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2017-08-03 08:53:13 +0200 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2017-08-04 14:24:56 +0200 |
commit | 694c31f9900ad05ad349f4b7227150d9de6ab171 (patch) | |
tree | 7abab55db78380a77b8bb360ef39088e3d640630 /c/src/lib/libbsp/arm/imx/include/arm/freescale/imx/imx_ccmvar.h | |
parent | bsps/arm: Add ARMv7-AR Generic Timer clock driver (diff) | |
download | rtems-694c31f9900ad05ad349f4b7227150d9de6ab171.tar.bz2 |
bsp/imx: New BSP
Update #3090.
Diffstat (limited to 'c/src/lib/libbsp/arm/imx/include/arm/freescale/imx/imx_ccmvar.h')
-rw-r--r-- | c/src/lib/libbsp/arm/imx/include/arm/freescale/imx/imx_ccmvar.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/arm/imx/include/arm/freescale/imx/imx_ccmvar.h b/c/src/lib/libbsp/arm/imx/include/arm/freescale/imx/imx_ccmvar.h new file mode 100644 index 0000000000..5633de6f50 --- /dev/null +++ b/c/src/lib/libbsp/arm/imx/include/arm/freescale/imx/imx_ccmvar.h @@ -0,0 +1,64 @@ +/*- + * Copyright (c) 2014 Ian Lepore <ian@freebsd.org> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD: head/sys/arm/freescale/imx/imx_ccmvar.h 292565 2015-12-21 20:17:24Z gonzo $ + */ + +#ifndef IMX_CCMVAR_H +#define IMX_CCMVAR_H + +/* + * We need a clock management system that works across unrelated SoCs and + * devices. For now, to keep imx development moving, define some barebones + * functionality that can be shared within the imx family by having each SoC + * implement functions with a common name. + * + * The usb enable functions are best-effort. They turn on the usb otg, host, + * and phy clocks in a SoC-specific manner, but it may take a lot more than that + * to make usb work on a given board. In particular, it can require specific + * pinmux setup of gpio pins connected to external phy parts, voltage regulators + * and overcurrent detectors, and so on. On such boards, u-boot or other early + * board setup code has to handle those things. + */ + +uint32_t imx_ccm_ipg_hz(void); +uint32_t imx_ccm_perclk_hz(void); +uint32_t imx_ccm_sdhci_hz(void); +uint32_t imx_ccm_uart_hz(void); +uint32_t imx_ccm_ahb_hz(void); + +#ifndef __rtems__ +void imx_ccm_usb_enable(device_t _usbdev); +void imx_ccm_usbphy_enable(device_t _phydev); +void imx_ccm_ssi_configure(device_t _ssidev); +void imx_ccm_hdmi_enable(void); +void imx_ccm_ipu_enable(int ipu); + +/* Routines to get and set the arm clock root divisor register. */ +uint32_t imx_ccm_get_cacrr(void); +void imx_ccm_set_cacrr(uint32_t _divisor); +#endif /* __rtems__ */ + +#endif |