linux-imx

// SPDX-License-Identifier: GPL-2.0

/*

 * r8a7779 Core CPG Clocks

 *

 * Copyright (C) 2013, 2014 Horms Solutions Ltd.

 *

 * Contact: Simon Horman <horms@verge.net.au>

 */

​

#include <linux/clk-provider.h>

#include <linux/clk/renesas.h>

#include <linux/init.h>

#include <linux/kernel.h>

#include <linux/of.h>

#include <linux/of_address.h>

#include <linux/slab.h>

#include <linux/spinlock.h>

#include <linux/soc/renesas/rcar-rst.h>

​

#include <dt-bindings/clock/r8a7779-clock.h>

​

#define CPG_NUM_CLOCKS          (R8A7779_CLK_OUT + 1)

​

struct r8a7779_cpg {

    struct clk_onecell_data data;

    spinlock_t lock;

    void __iomem *reg;

};

​

/* -----------------------------------------------------------------------------

 * CPG Clock Data

 */

​

/*

 *      MD1 = 1         MD1 = 0

 *      (PLLA = 1500)       (PLLA = 1600)

 *      (MHz)           (MHz)

 *------------------------------------------------+--------------------

 * clkz     1000   (2/3)        800   (1/2)

 * clkzs     250   (1/6)        200   (1/8)

 * clki      750   (1/2)        800   (1/2)

 * clks      250   (1/6)        200   (1/8)

 * clks1     125   (1/12)       100   (1/16)

 * clks3     187.5 (1/8)        200   (1/8)

 * clks4      93.7 (1/16)       100   (1/16)

 * clkp       62.5 (1/24)        50   (1/32)

 * clkg       62.5 (1/24)        66.6 (1/24)

 * clkb, CLKOUT

 * (MD2 = 0)      62.5 (1/24)        66.6 (1/24)

 * (MD2 = 1)      41.6 (1/36)        50   (1/32)

 */

​

#define CPG_CLK_CONFIG_INDEX(md)    (((md) & (BIT(2)|BIT(1))) >> 1)

​

struct cpg_clk_config {

    unsigned int z_mult;

    unsigned int z_div;

    unsigned int zs_and_s_div;

    unsigned int s1_div;

    unsigned int p_div;

    unsigned int b_and_out_div;

};

​