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authorSebastian Huber <sebastian.huber@embedded-brains.de>2017-08-03 08:53:13 +0200
committerSebastian Huber <sebastian.huber@embedded-brains.de>2017-08-04 14:24:56 +0200
commit694c31f9900ad05ad349f4b7227150d9de6ab171 (patch)
tree7abab55db78380a77b8bb360ef39088e3d640630 /c/src/lib/libbsp/arm/imx/include/arm/freescale/imx/imx_ccmvar.h
parentbsps/arm: Add ARMv7-AR Generic Timer clock driver (diff)
downloadrtems-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.h64
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
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--- /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