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clk: add lpc18xx cgu clk driver

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Add driver for NXP LPC18xx/43xx Clock Generation Unit (CGU). The CGU
contains several clock generators and output stages that route the
clocks either directly to peripherals or to a Clock Control Unit
(CCU).

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
This commit is contained in:
Joachim Eastwood
2015-05-28 22:31:43 +02:00
committed by Michael Turquette
parent 02fdfd708f
commit b04e0b8fd5
4 changed files with 678 additions and 0 deletions
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41
include/dt-bindings/clock/lpc18xx-cgu.h Normal file
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/*
* Copyright (c) 2015 Joachim Eastwood <manabian@gmail.com>
*
* This code is released using a dual license strategy: BSD/GPL
* You can choose the licence that better fits your requirements.
*
* Released under the terms of 3-clause BSD License
* Released under the terms of GNU General Public License Version 2.0
*
*/
/* LPC18xx/43xx base clock ids */
#define BASE_SAFE_CLK 0
#define BASE_USB0_CLK 1
#define BASE_PERIPH_CLK 2
#define BASE_USB1_CLK 3
#define BASE_CPU_CLK 4
#define BASE_SPIFI_CLK 5
#define BASE_SPI_CLK 6
#define BASE_PHY_RX_CLK 7
#define BASE_PHY_TX_CLK 8
#define BASE_APB1_CLK 9
#define BASE_APB3_CLK 10
#define BASE_LCD_CLK 11
#define BASE_ADCHS_CLK 12
#define BASE_SDIO_CLK 13
#define BASE_SSP0_CLK 14
#define BASE_SSP1_CLK 15
#define BASE_UART0_CLK 16
#define BASE_UART1_CLK 17
#define BASE_UART2_CLK 18
#define BASE_UART3_CLK 19
#define BASE_OUT_CLK 20
#define BASE_RES1_CLK 21
#define BASE_RES2_CLK 22
#define BASE_RES3_CLK 23
#define BASE_RES4_CLK 24
#define BASE_AUDIO_CLK 25
#define BASE_CGU_OUT0_CLK 26
#define BASE_CGU_OUT1_CLK 27
#define BASE_CLK_MAX (BASE_CGU_OUT1_CLK + 1)