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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2017 Toradex AG
*
* FSL DCU platform driver
*/
#include <asm/arch/crm_regs.h>
#include <asm/io.h>
#include <common.h>
#include <fsl_dcu_fb.h>
#include "div64.h"
unsigned int dcu_set_pixel_clock(unsigned int pixclock)
{
struct ccm_reg *ccm = (struct ccm_reg *)CCM_BASE_ADDR;
unsigned long long div;
clrbits_le32(&ccm->cscmr1, CCM_CSCMR1_DCU0_CLK_SEL);
clrsetbits_le32(&ccm->cscdr3,
CCM_CSCDR3_DCU0_DIV_MASK | CCM_CSCDR3_DCU0_EN,
CCM_CSCDR3_DCU0_DIV(0) | CCM_CSCDR3_DCU0_EN);
div = (unsigned long long)(PLL1_PFD2_FREQ / 1000);
do_div(div, pixclock);
return div;
}
int platform_dcu_init(struct fb_info *fbinfo,
unsigned int xres,
unsigned int yres,
const char *port,
struct fb_videomode *dcu_fb_videomode)
{
fsl_dcu_init(fbinfo, xres, yres, 32);
return 0;
}
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