luban-lite-t3e-pro/target/d21x/demo128-nand/sys_clk.c

/*
 * Copyright (c) 2022, ArtInChip Technology Co., Ltd
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Authors: weilin.peng@artinchip.com
 */

#include <aic_core.h>
#include <aic_hal.h>
#include "board.h"

#ifndef AIC_CLK_PLL_INT0_FREQ
#define AIC_CLK_PLL_INT0_FREQ 600000000
#endif
#ifndef AIC_CLK_PLL_INT1_FREQ
#define AIC_CLK_PLL_INT1_FREQ 1200000000
#endif
#ifndef AIC_CLK_PLL_FRA0_FREQ
#define AIC_CLK_PLL_FRA0_FREQ 600000000
#endif
#ifndef AIC_CLK_PLL_FRA1_FREQ
#define AIC_CLK_PLL_FRA1_FREQ 491520000
#endif
#ifndef AIC_CLK_PLL_FRA2_FREQ
#define AIC_CLK_PLL_FRA2_FREQ 840000000
#endif
#ifndef AIC_CLK_CPU_FREQ
#define AIC_CLK_CPU_FREQ 600000000
#endif
#ifndef AIC_CLK_AXI0_FREQ
#define AIC_CLK_AXI0_FREQ 240000000
#endif
#ifndef AIC_CLK_AHB0_FREQ
#define AIC_CLK_AHB0_FREQ 240000000
#endif
#ifndef AIC_CLK_APB0_FREQ
#define AIC_CLK_APB0_FREQ 100000000
#endif

struct aic_sysclk
{
    unsigned long       freq;
    unsigned int        clk_id;
    unsigned int        parent_clk_id;
};

struct aic_sysclk aic_sysclk_config[] = {
    {AIC_CLK_PLL_INT0_FREQ, CLK_PLL_INT0, 0},           /* 600000000 */
    {AIC_CLK_PLL_INT1_FREQ, CLK_PLL_INT1, 0},           /* 1200000000 */
    //{AIC_CLK_PLL_FRA0_FREQ, CLK_PLL_FRA0, 0},           /* ddr2/ddr3 */
    {AIC_CLK_PLL_FRA1_FREQ, CLK_PLL_FRA1, 0},           /* 491520000 */
    {AIC_CLK_PLL_FRA2_FREQ, CLK_PLL_FRA2, 0},           /* 840000000 */
    {AIC_CLK_CPU_FREQ, CLK_CPU, CLK_CPU_SRC1},          /* 600000000 */
    {AIC_CLK_AXI0_FREQ, CLK_AXI0, CLK_AXI0_SRC1},       /* 240000000 */
    {AIC_CLK_AHB0_FREQ, CLK_AHB0, CLK_AHB0_SRC1},       /* 240000000 */
    {AIC_CLK_APB0_FREQ, CLK_APB0, CLK_APB0_SRC1},       /* 100000000 */
//    {24000000, CLK_APB1, 0},
   {25000000, CLK_OUT2, 0},
};

/*
 * Some Chips may enable USB0 EHCI in Boot ROM,
 * it is better to disable USB0 EHCI during boot to avoid some side effect.
 */
static void usb_ehci_disable(void)
{
    hal_clk_disable_assertrst(CLK_USBH0);
    hal_clk_disable(CLK_USBH0);
}

void aic_board_sysclk_init(void)
{
    uint32_t i = 0;

    usb_ehci_disable();

    for (i=0; i<sizeof(aic_sysclk_config)/sizeof(struct aic_sysclk); i++) {
        if (aic_sysclk_config[i].freq == 0)
            continue;

        /* multi parent clk */
        if (aic_sysclk_config[i].parent_clk_id) {
            hal_clk_set_freq(aic_sysclk_config[i].parent_clk_id,
                             aic_sysclk_config[i].freq);
            hal_clk_enable(aic_sysclk_config[i].parent_clk_id);
            hal_clk_set_parent(aic_sysclk_config[i].clk_id,
                               aic_sysclk_config[i].parent_clk_id);
        } else {
            hal_clk_set_freq(aic_sysclk_config[i].clk_id, aic_sysclk_config[i].freq);
            hal_clk_enable(aic_sysclk_config[i].clk_id);
        }
    }

    /* Enable sys clk */
    hal_clk_enable_deassertrst_iter(CLK_GPIO);
    hal_clk_enable_deassertrst_iter(CLK_GTC);
#ifdef AIC_USING_GMAC0
    hal_clk_enable_iter(CLK_OUT2);
#endif
}