LXR uboot/arch/arm/cpu/armv7/s5p-common/sromc.c

   1/*
   2 * Copyright (C) 2010 Samsung Electronics
   3 * Naveen Krishna Ch <ch.naveen@samsung.com>
   4 *
   5 * SPDX-License-Identifier:     GPL-2.0+
   6 */
   7
   8#include <common.h>
   9#include <asm/io.h>
  10#include <asm/arch/sromc.h>
  11
  12/*
  13 * s5p_config_sromc() - select the proper SROMC Bank and configure the
  14 * band width control and bank control registers
  15 * srom_bank    - SROM
  16 * srom_bw_conf  - SMC Band witdh reg configuration value
  17 * srom_bc_conf  - SMC Bank Control reg configuration value
  18 */
  19void s5p_config_sromc(u32 srom_bank, u32 srom_bw_conf, u32 srom_bc_conf)
  20{
  21        u32 tmp;
  22        struct s5p_sromc *srom =
  23                (struct s5p_sromc *)samsung_get_base_sromc();
  24
  25        /* Configure SMC_BW register to handle proper SROMC bank */
  26        tmp = srom->bw;
  27        tmp &= ~(0xF << (srom_bank * 4));
  28        tmp |= srom_bw_conf;
  29        srom->bw = tmp;
  30
  31        /* Configure SMC_BC register */
  32        srom->bc[srom_bank] = srom_bc_conf;
  33}
  34