LXR uboot/board/toradex/colibri

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright 2017 Toradex AG
   4 *
   5 * FSL DCU platform driver
   6 */
   7
   8#include <asm/arch/crm_regs.h>
   9#include <asm/io.h>
  10#include <common.h>
  11#include <fsl_dcu_fb.h>
  12#include "div64.h"
  13
  14unsigned int dcu_set_pixel_clock(unsigned int pixclock)
  15{
  16        struct ccm_reg *ccm = (struct ccm_reg *)CCM_BASE_ADDR;
  17        unsigned long long div;
  18
  19        clrbits_le32(&ccm->cscmr1, CCM_CSCMR1_DCU0_CLK_SEL);
  20        clrsetbits_le32(&ccm->cscdr3,
  21                        CCM_CSCDR3_DCU0_DIV_MASK | CCM_CSCDR3_DCU0_EN,
  22                        CCM_CSCDR3_DCU0_DIV(0) | CCM_CSCDR3_DCU0_EN);
  23        div = (unsigned long long)(PLL1_PFD2_FREQ / 1000);
  24        do_div(div, pixclock);
  25
  26        return div;
  27}
  28
  29int platform_dcu_init(unsigned int xres, unsigned int yres,
  30                      const char *port,
  31                      struct fb_videomode *dcu_fb_videomode)
  32{
  33        fsl_dcu_init(xres, yres, 32);
  34
  35        return 0;
  36}
  37