39 lines
864 B
C
39 lines
864 B
C
// 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;
|
|
}
|