board/samsung/smdk5250/smdk5250.c

   1 /*
   2  * Copyright (C) 2012 Samsung Electronics
   3  *
   4  * See file CREDITS for list of people who contributed to this
   5  * project.
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License as
   9  * published by the Free Software Foundation; either version 2 of
  10  * the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  20  * MA 02111-1307 USA
  21  */
  22
  23 #include <common.h>
  24 #include <fdtdec.h>
  25 #include <asm/io.h>
  26 #include <i2c.h>
  27 #include <netdev.h>
  28 #include <spi.h>
  29 #include <asm/arch/cpu.h>
  30 #include <asm/arch/gpio.h>
  31 #include <asm/arch/mmc.h>
  32 #include <asm/arch/pinmux.h>
  33 #include <asm/arch/sromc.h>
  34 #include <power/pmic.h>
  35
  36 DECLARE_GLOBAL_DATA_PTR;
  37
  38 int board_init(void)
  39 {
  40         gd->bd->bi_boot_params = (PHYS_SDRAM_1 + 0x100UL);
  41 #ifdef CONFIG_EXYNOS_SPI
  42         spi_init();
  43 #endif
  44         return 0;
  45 }
  46
  47 int dram_init(void)
  48 {
  49         gd->ram_size    = get_ram_size((long *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE)
  50                         + get_ram_size((long *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE)
  51                         + get_ram_size((long *)PHYS_SDRAM_3, PHYS_SDRAM_3_SIZE)
  52                         + get_ram_size((long *)PHYS_SDRAM_4, PHYS_SDRAM_4_SIZE)
  53                         + get_ram_size((long *)PHYS_SDRAM_5, PHYS_SDRAM_7_SIZE)
  54                         + get_ram_size((long *)PHYS_SDRAM_6, PHYS_SDRAM_7_SIZE)
  55                         + get_ram_size((long *)PHYS_SDRAM_7, PHYS_SDRAM_7_SIZE)
  56                         + get_ram_size((long *)PHYS_SDRAM_8, PHYS_SDRAM_8_SIZE);
  57         return 0;
  58 }
  59
  60 #if defined(CONFIG_POWER)
  61 int power_init_board(void)
  62 {
  63         if (pmic_init(I2C_PMIC))
  64                 return -1;
  65         else
  66                 return 0;
  67 }
  68 #endif
  69
  70 void dram_init_banksize(void)
  71 {
  72         gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
  73         gd->bd->bi_dram[0].size = get_ram_size((long *)PHYS_SDRAM_1,
  74                                                         PHYS_SDRAM_1_SIZE);
  75         gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
  76         gd->bd->bi_dram[1].size = get_ram_size((long *)PHYS_SDRAM_2,
  77                                                         PHYS_SDRAM_2_SIZE);
  78         gd->bd->bi_dram[2].start = PHYS_SDRAM_3;
  79         gd->bd->bi_dram[2].size = get_ram_size((long *)PHYS_SDRAM_3,
  80                                                         PHYS_SDRAM_3_SIZE);
  81         gd->bd->bi_dram[3].start = PHYS_SDRAM_4;
  82         gd->bd->bi_dram[3].size = get_ram_size((long *)PHYS_SDRAM_4,
  83                                                         PHYS_SDRAM_4_SIZE);
  84         gd->bd->bi_dram[4].start = PHYS_SDRAM_5;
  85         gd->bd->bi_dram[4].size = get_ram_size((long *)PHYS_SDRAM_5,
  86                                                         PHYS_SDRAM_5_SIZE);
  87         gd->bd->bi_dram[5].start = PHYS_SDRAM_6;
  88         gd->bd->bi_dram[5].size = get_ram_size((long *)PHYS_SDRAM_6,
  89                                                         PHYS_SDRAM_6_SIZE);
  90         gd->bd->bi_dram[6].start = PHYS_SDRAM_7;
  91         gd->bd->bi_dram[6].size = get_ram_size((long *)PHYS_SDRAM_7,
  92                                                         PHYS_SDRAM_7_SIZE);
  93         gd->bd->bi_dram[7].start = PHYS_SDRAM_8;
  94         gd->bd->bi_dram[7].size = get_ram_size((long *)PHYS_SDRAM_8,
  95                                                         PHYS_SDRAM_8_SIZE);
  96 }
  97
  98 #ifdef CONFIG_OF_CONTROL
  99 static int decode_sromc(const void *blob, struct fdt_sromc *config)
 100 {
 101         int err;
 102         int node;
 103
 104         node = fdtdec_next_compatible(blob, 0, COMPAT_SAMSUNG_EXYNOS5_SROMC);
 105         if (node < 0) {
 106                 debug("Could not find SROMC node\n");
 107                 return node;
 108         }
 109
 110         config->bank = fdtdec_get_int(blob, node, "bank", 0);
 111         config->width = fdtdec_get_int(blob, node, "width", 2);
 112
 113         err = fdtdec_get_int_array(blob, node, "srom-timing", config->timing,
 114                         FDT_SROM_TIMING_COUNT);
 115         if (err < 0) {
 116                 debug("Could not decode SROMC configuration\n");
 117                 return -FDT_ERR_NOTFOUND;
 118         }
 119
 120         return 0;
 121 }
 122 #endif
 123
 124 int board_eth_init(bd_t *bis)
 125 {
 126 #ifdef CONFIG_SMC911X
 127         u32 smc_bw_conf, smc_bc_conf;
 128         struct fdt_sromc config;
 129         fdt_addr_t base_addr;
 130         int node;
 131
 132 #ifdef CONFIG_OF_CONTROL
 133         node = decode_sromc(gd->fdt_blob, &config);
 134         if (node < 0) {
 135                 debug("%s: Could not find sromc configuration\n", __func__);
 136                 return 0;
 137         }
 138         node = fdtdec_next_compatible(gd->fdt_blob, node, COMPAT_SMSC_LAN9215);
 139         if (node < 0) {
 140                 debug("%s: Could not find lan9215 configuration\n", __func__);
 141                 return 0;
 142         }
 143
 144         /* We now have a node, so any problems from now on are errors */
 145         base_addr = fdtdec_get_addr(gd->fdt_blob, node, "reg");
 146         if (base_addr == FDT_ADDR_T_NONE) {
 147                 debug("%s: Could not find lan9215 address\n", __func__);
 148                 return -1;
 149         }
 150 #else
 151         /* Non-FDT configuration - bank number and timing parameters*/
 152         config.bank = CONFIG_ENV_SROM_BANK;
 153         config.width = 2;
 154
 155         config.timing[FDT_SROM_TACS] = 0x01;
 156         config.timing[FDT_SROM_TCOS] = 0x01;
 157         config.timing[FDT_SROM_TACC] = 0x06;
 158         config.timing[FDT_SROM_TCOH] = 0x01;
 159         config.timing[FDT_SROM_TAH] = 0x0C;
 160         config.timing[FDT_SROM_TACP] = 0x09;
 161         config.timing[FDT_SROM_PMC] = 0x01;
 162         base_addr = CONFIG_SMC911X_BASE;
 163 #endif
 164
 165         /* Ethernet needs data bus width of 16 bits */
 166         if (config.width != 2) {
 167                 debug("%s: Unsupported bus width %d\n", __func__,
 168                         config.width);
 169                 return -1;
 170         }
 171         smc_bw_conf = SROMC_DATA16_WIDTH(config.bank)
 172                         | SROMC_BYTE_ENABLE(config.bank);
 173
 174         smc_bc_conf = SROMC_BC_TACS(config.timing[FDT_SROM_TACS])   |\
 175                         SROMC_BC_TCOS(config.timing[FDT_SROM_TCOS]) |\
 176                         SROMC_BC_TACC(config.timing[FDT_SROM_TACC]) |\
 177                         SROMC_BC_TCOH(config.timing[FDT_SROM_TCOH]) |\
 178                         SROMC_BC_TAH(config.timing[FDT_SROM_TAH])   |\
 179                         SROMC_BC_TACP(config.timing[FDT_SROM_TACP]) |\
 180                         SROMC_BC_PMC(config.timing[FDT_SROM_PMC]);
 181
 182         /* Select and configure the SROMC bank */
 183         exynos_pinmux_config(PERIPH_ID_SROMC, config.bank);
 184         s5p_config_sromc(config.bank, smc_bw_conf, smc_bc_conf);
 185         return smc911x_initialize(0, base_addr);
 186 #endif
 187         return 0;
 188 }
 189
 190 #ifdef CONFIG_DISPLAY_BOARDINFO
 191 int checkboard(void)
 192 {
 193         printf("\nBoard: SMDK5250\n");
 194
 195         return 0;
 196 }
 197 #endif
 198
 199 #ifdef CONFIG_GENERIC_MMC
 200 int board_mmc_init(bd_t *bis)
 201 {
 202         int err;
 203
 204         err = exynos_pinmux_config(PERIPH_ID_SDMMC0, PINMUX_FLAG_8BIT_MODE);
 205         if (err) {
 206                 debug("SDMMC0 not configured\n");
 207                 return err;
 208         }
 209
 210         err = s5p_mmc_init(0, 8);
 211         return err;
 212 }
 213 #endif
 214
 215 static int board_uart_init(void)
 216 {
 217         int err;
 218
 219         err = exynos_pinmux_config(PERIPH_ID_UART0, PINMUX_FLAG_NONE);
 220         if (err) {
 221                 debug("UART0 not configured\n");
 222                 return err;
 223         }
 224
 225         err = exynos_pinmux_config(PERIPH_ID_UART1, PINMUX_FLAG_NONE);
 226         if (err) {
 227                 debug("UART1 not configured\n");
 228                 return err;
 229         }
 230
 231         err = exynos_pinmux_config(PERIPH_ID_UART2, PINMUX_FLAG_NONE);
 232         if (err) {
 233                 debug("UART2 not configured\n");
 234                 return err;
 235         }
 236
 237         err = exynos_pinmux_config(PERIPH_ID_UART3, PINMUX_FLAG_NONE);
 238         if (err) {
 239                 debug("UART3 not configured\n");
 240                 return err;
 241         }
 242
 243         return 0;
 244 }
 245
 246 #ifdef CONFIG_SYS_I2C_INIT_BOARD
 247 static int board_i2c_init(void)
 248 {
 249         int i, err;
 250
 251         for (i = 0; i < CONFIG_MAX_I2C_NUM; i++) {
 252                 err = exynos_pinmux_config((PERIPH_ID_I2C0 + i),
 253                                                 PINMUX_FLAG_NONE);
 254                 if (err) {
 255                         debug("I2C%d not configured\n", (PERIPH_ID_I2C0 + i));
 256                         return err;
 257                 }
 258         }
 259         i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
 260         return 0;
 261 }
 262 #endif
 263
 264 #ifdef CONFIG_BOARD_EARLY_INIT_F
 265 int board_early_init_f(void)
 266 {
 267         int err;
 268         err = board_uart_init();
 269         if (err) {
 270                 debug("UART init failed\n");
 271                 return err;
 272         }
 273 #ifdef CONFIG_SYS_I2C_INIT_BOARD
 274         err = board_i2c_init();
 275 #endif
 276         return err;
 277 }
 278 #endif