text: // SPDX-License-Identifier: GPL-2.0+
  /*
   * Copyright (C) 2016-2017 Socionext Inc.
   */
  
  #include <common.h>
  #include <spl.h>
  #include <linux/io.h>
  
  #include "../init.h"
  #include "../sc-regs.h"
  
  void uniphier_pxs2_dram_clk_init(void)
  {
  	u32 tmp;
  
  	/* deassert reset */
  	tmp = readl(sc_base + SC_RSTCTRL4);
  	tmp |= SC_RSTCTRL4_NRST_UMCSB | SC_RSTCTRL4_NRST_UMCA2 |
  	       SC_RSTCTRL4_NRST_UMCA1 | SC_RSTCTRL4_NRST_UMCA0 |
  	       SC_RSTCTRL4_NRST_UMC32 | SC_RSTCTRL4_NRST_UMC31 |
  	       SC_RSTCTRL4_NRST_UMC30;
  	writel(tmp, sc_base + SC_RSTCTRL4);
  	readl(sc_base + SC_RSTCTRL4); /* dummy read */
  
  	/* provide clocks */
  	tmp = readl(sc_base + SC_CLKCTRL4);
  	tmp |= SC_CLKCTRL4_CEN_UMCSB | SC_CLKCTRL4_CEN_UMC2 |
  	       SC_CLKCTRL4_CEN_UMC1 | SC_CLKCTRL4_CEN_UMC0;
  	writel(tmp, sc_base + SC_CLKCTRL4);
  	readl(sc_base + SC_CLKCTRL4); /* dummy read */
  }
  