arch/arm/cpu/armv7/uniphier/ph1-ld4/sg_init.c

   1 /*
   2  * Copyright (C) 2011-2014 Panasonic Corporation
   3  *   Author: Masahiro Yamada <yamada.m@jp.panasonic.com>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include <asm/io.h>
  10 #include <asm/arch/sg-regs.h>
  11
  12 void sg_init(void)
  13 {
  14         u32 tmp;
  15
  16         /* Set DDR size */
  17         tmp = sg_memconf_val_ch0(CONFIG_SDRAM0_SIZE, CONFIG_DDR_NUM_CH0);
  18         tmp |= sg_memconf_val_ch1(CONFIG_SDRAM1_SIZE, CONFIG_DDR_NUM_CH1);
  19 #if CONFIG_SDRAM0_BASE + CONFIG_SDRAM0_SIZE < CONFIG_SDRAM1_BASE
  20         tmp |= SG_MEMCONF_SPARSEMEM;
  21 #endif
  22         writel(tmp, SG_MEMCONF);
  23
  24         /* Input ports must be enabled deasserting reset of cores */
  25         tmp = readl(SG_IECTRL);
  26         tmp |= 0x1;
  27         writel(tmp, SG_IECTRL);
  28 }