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dt-bindings: clk: Add Baikal-T1 CCU PLLs binding

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Baikal-T1 Clocks Control Unit is responsible for transformation of a
signal coming from an external oscillator into clocks of various
frequencies to propagate them then to the corresponding clocks
consumers (either individual IP-blocks or clock domains). In order
to create a set of high-frequency clocks the external signal is
firstly handled by the embedded into CCU PLLs. So the corresponding
dts-node is just a normal clock-provider node with standard set of
properties. Note as being part of the Baikal-T1 System Controller its
DT node is supposed to be a child the system controller node.

Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: linux-mips@vger.kernel.org
Link: https://lore.kernel.org/r/20200526222056.18072-2-Sergey.Semin@baikalelectronics.ru
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This commit is contained in:
Serge Semin
2020-05-27 01:20:53 +03:00
committed by Stephen Boyd
parent 8f3d9f3542
commit aec6adc560
2 changed files with 147 additions and 0 deletions
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16
include/dt-bindings/clock/bt1-ccu.h Normal file
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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2020 BAIKAL ELECTRONICS, JSC
*
* Baikal-T1 CCU clock indices
*/
#ifndef __DT_BINDINGS_CLOCK_BT1_CCU_H
#define __DT_BINDINGS_CLOCK_BT1_CCU_H
#define CCU_CPU_PLL 0
#define CCU_SATA_PLL 1
#define CCU_DDR_PLL 2
#define CCU_PCIE_PLL 3
#define CCU_ETH_PLL 4
#endif /* __DT_BINDINGS_CLOCK_BT1_CCU_H */