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clk: cygnus: add clock support for Broadcom Cygnus

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The Broadcom Cygnus SoC is architected under the iProc architecture. It
has the following PLLs: ARMPLL, GENPLL, LCPLL0, MIPIPLL, all dervied
from an onboard crystal. Cygnus also has various ASIU clocks that are
derived directly from the onboard crystal.

Signed-off-by: Ray Jui <rjui@broadcom.com>
Reviewed-by: Scott Branden <sbranden@broadcom.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
This commit is contained in:
Ray Jui
2015-05-05 11:13:21 -07:00
committed by Michael Turquette
parent 69a0b2c559
commit 61ca7b0c7f
3 changed files with 334 additions and 0 deletions
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68
include/dt-bindings/clock/bcm-cygnus.h Normal file
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/*
* BSD LICENSE
*
* Copyright(c) 2014 Broadcom Corporation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Broadcom Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
* OWNER 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.
*/
#ifndef _CLOCK_BCM_CYGNUS_H
#define _CLOCK_BCM_CYGNUS_H
/* GENPLL clock ID */
#define BCM_CYGNUS_GENPLL 0
#define BCM_CYGNUS_GENPLL_AXI21_CLK 1
#define BCM_CYGNUS_GENPLL_250MHZ_CLK 2
#define BCM_CYGNUS_GENPLL_IHOST_SYS_CLK 3
#define BCM_CYGNUS_GENPLL_ENET_SW_CLK 4
#define BCM_CYGNUS_GENPLL_AUDIO_125_CLK 5
#define BCM_CYGNUS_GENPLL_CAN_CLK 6
/* LCPLL0 clock ID */
#define BCM_CYGNUS_LCPLL0 0
#define BCM_CYGNUS_LCPLL0_PCIE_PHY_REF_CLK 1
#define BCM_CYGNUS_LCPLL0_DDR_PHY_CLK 2
#define BCM_CYGNUS_LCPLL0_SDIO_CLK 3
#define BCM_CYGNUS_LCPLL0_USB_PHY_REF_CLK 4
#define BCM_CYGNUS_LCPLL0_SMART_CARD_CLK 5
#define BCM_CYGNUS_LCPLL0_CH5_UNUSED 6
/* MIPI PLL clock ID */
#define BCM_CYGNUS_MIPIPLL 0
#define BCM_CYGNUS_MIPIPLL_CH0_UNUSED 1
#define BCM_CYGNUS_MIPIPLL_CH1_LCD 2
#define BCM_CYGNUS_MIPIPLL_CH2_V3D 3
#define BCM_CYGNUS_MIPIPLL_CH3_UNUSED 4
#define BCM_CYGNUS_MIPIPLL_CH4_UNUSED 5
#define BCM_CYGNUS_MIPIPLL_CH5_UNUSED 6
/* ASIU clock ID */
#define BCM_CYGNUS_ASIU_KEYPAD_CLK 0
#define BCM_CYGNUS_ASIU_ADC_CLK 1
#define BCM_CYGNUS_ASIU_PWM_CLK 2
#endif /* _CLOCK_BCM_CYGNUS_H */