git.sur5r.net Git - u-boot/blob - arch/arm/mach-uniphier/clk/clk-ld20.c

   1 /*
   2  * Copyright (C) 2017 Socionext Inc.
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <linux/bitops.h>
   8 #include <linux/io.h>
   9
  10 #include "../init.h"
  11 #include "../sc64-regs.h"
  12
  13 #define SDCTRL_EMMC_HW_RESET    0x59810280
  14
  15 void uniphier_ld20_clk_init(void)
  16 {
  17         u32 tmp;
  18
  19         tmp = readl(SC_RSTCTRL6);
  20         tmp |= BIT(8);                  /* Mali */
  21         writel(tmp, SC_RSTCTRL6);
  22
  23         tmp = readl(SC_CLKCTRL6);
  24         tmp |= BIT(8);                  /* Mali */
  25         writel(tmp, SC_CLKCTRL6);
  26
  27         /* TODO: use "mmc-pwrseq-emmc" */
  28         writel(1, SDCTRL_EMMC_HW_RESET);
  29 }