board/ti/ks2_evm/board.c

   1 /*
   2  * Keystone : Board initialization
   3  *
   4  * (C) Copyright 2014
   5  *     Texas Instruments Incorporated, <www.ti.com>
   6  *
   7  * SPDX-License-Identifier:     GPL-2.0+
   8  */
   9
  10 #include "board.h"
  11 #include <common.h>
  12 #include <spl.h>
  13 #include <exports.h>
  14 #include <fdt_support.h>
  15 #include <asm/arch/ddr3.h>
  16 #include <asm/arch/psc_defs.h>
  17 #include <asm/ti-common/ti-aemif.h>
  18 #include <asm/ti-common/keystone_net.h>
  19
  20 DECLARE_GLOBAL_DATA_PTR;
  21
  22 static struct aemif_config aemif_configs[] = {
  23         {                       /* CS0 */
  24                 .mode           = AEMIF_MODE_NAND,
  25                 .wr_setup       = 0xf,
  26                 .wr_strobe      = 0x3f,
  27                 .wr_hold        = 7,
  28                 .rd_setup       = 0xf,
  29                 .rd_strobe      = 0x3f,
  30                 .rd_hold        = 7,
  31                 .turn_around    = 3,
  32                 .width          = AEMIF_WIDTH_8,
  33         },
  34 };
  35
  36 int dram_init(void)
  37 {
  38         u32 ddr3_size;
  39
  40         ddr3_size = ddr3_init();
  41
  42         gd->ram_size = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE,
  43                                     CONFIG_MAX_RAM_BANK_SIZE);
  44         aemif_init(ARRAY_SIZE(aemif_configs), aemif_configs);
  45         ddr3_init_ecc(KS2_DDR3A_EMIF_CTRL_BASE, ddr3_size);
  46         return 0;
  47 }
  48
  49 int board_init(void)
  50 {
  51         gd->bd->bi_boot_params = CONFIG_LINUX_BOOT_PARAM_ADDR;
  52
  53         return 0;
  54 }
  55
  56 #ifdef CONFIG_DRIVER_TI_KEYSTONE_NET
  57 int get_eth_env_param(char *env_name)
  58 {
  59         char *env;
  60         int res = -1;
  61
  62         env = getenv(env_name);
  63         if (env)
  64                 res = simple_strtol(env, NULL, 0);
  65
  66         return res;
  67 }
  68
  69 int board_eth_init(bd_t *bis)
  70 {
  71         int j;
  72         int res;
  73         int port_num;
  74         char link_type_name[32];
  75
  76         /* By default, select PA PLL clock as PA clock source */
  77         if (psc_enable_module(KS2_LPSC_PA))
  78                 return -1;
  79         if (psc_enable_module(KS2_LPSC_CPGMAC))
  80                 return -1;
  81         if (psc_enable_module(KS2_LPSC_CRYPTO))
  82                 return -1;
  83         pass_pll_pa_clk_enable();
  84
  85         port_num = get_num_eth_ports();
  86
  87         for (j = 0; j < port_num; j++) {
  88                 sprintf(link_type_name, "sgmii%d_link_type", j);
  89                 res = get_eth_env_param(link_type_name);
  90                 if (res >= 0)
  91                         eth_priv_cfg[j].sgmii_link_type = res;
  92
  93                 keystone2_emac_initialize(&eth_priv_cfg[j]);
  94         }
  95
  96         return 0;
  97 }
  98 #endif
  99
 100 #ifdef CONFIG_SPL_BUILD
 101 void spl_board_init(void)
 102 {
 103         spl_init_keystone_plls();
 104         preloader_console_init();
 105 }
 106
 107 u32 spl_boot_device(void)
 108 {
 109 #if defined(CONFIG_SPL_SPI_LOAD)
 110         return BOOT_DEVICE_SPI;
 111 #else
 112         puts("Unknown boot device\n");
 113         hang();
 114 #endif
 115 }
 116 #endif
 117
 118 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
 119 int ft_board_setup(void *blob, bd_t *bd)
 120 {
 121         int lpae;
 122         char *env;
 123         char *endp;
 124         int nbanks;
 125         u64 size[2];
 126         u64 start[2];
 127         int nodeoffset;
 128         u32 ddr3a_size;
 129         int unitrd_fixup = 0;
 130
 131         env = getenv("mem_lpae");
 132         lpae = env && simple_strtol(env, NULL, 0);
 133         env = getenv("uinitrd_fixup");
 134         unitrd_fixup = env && simple_strtol(env, NULL, 0);
 135
 136         ddr3a_size = 0;
 137         if (lpae) {
 138                 env = getenv("ddr3a_size");
 139                 if (env)
 140                         ddr3a_size = simple_strtol(env, NULL, 10);
 141                 if ((ddr3a_size != 8) && (ddr3a_size != 4))
 142                         ddr3a_size = 0;
 143         }
 144
 145         nbanks = 1;
 146         start[0] = bd->bi_dram[0].start;
 147         size[0]  = bd->bi_dram[0].size;
 148
 149         /* adjust memory start address for LPAE */
 150         if (lpae) {
 151                 start[0] -= CONFIG_SYS_SDRAM_BASE;
 152                 start[0] += CONFIG_SYS_LPAE_SDRAM_BASE;
 153         }
 154
 155         if ((size[0] == 0x80000000) && (ddr3a_size != 0)) {
 156                 size[1] = ((u64)ddr3a_size - 2) << 30;
 157                 start[1] = 0x880000000;
 158                 nbanks++;
 159         }
 160
 161         /* reserve memory at start of bank */
 162         env = getenv("mem_reserve_head");
 163         if (env) {
 164                 start[0] += ustrtoul(env, &endp, 0);
 165                 size[0] -= ustrtoul(env, &endp, 0);
 166         }
 167
 168         env = getenv("mem_reserve");
 169         if (env)
 170                 size[0] -= ustrtoul(env, &endp, 0);
 171
 172         fdt_fixup_memory_banks(blob, start, size, nbanks);
 173
 174         /* Fix up the initrd */
 175         if (lpae && unitrd_fixup) {
 176                 int err;
 177                 u32 *prop1, *prop2;
 178                 u64 initrd_start, initrd_end;
 179
 180                 nodeoffset = fdt_path_offset(blob, "/chosen");
 181                 if (nodeoffset >= 0) {
 182                         prop1 = (u32 *)fdt_getprop(blob, nodeoffset,
 183                                             "linux,initrd-start", NULL);
 184                         prop2 = (u32 *)fdt_getprop(blob, nodeoffset,
 185                                             "linux,initrd-end", NULL);
 186                         if (prop1 && prop2) {
 187                                 initrd_start = __be32_to_cpu(*prop1);
 188                                 initrd_start -= CONFIG_SYS_SDRAM_BASE;
 189                                 initrd_start += CONFIG_SYS_LPAE_SDRAM_BASE;
 190                                 initrd_start = __cpu_to_be64(initrd_start);
 191                                 initrd_end = __be32_to_cpu(*prop2);
 192                                 initrd_end -= CONFIG_SYS_SDRAM_BASE;
 193                                 initrd_end += CONFIG_SYS_LPAE_SDRAM_BASE;
 194                                 initrd_end = __cpu_to_be64(initrd_end);
 195
 196                                 err = fdt_delprop(blob, nodeoffset,
 197                                                   "linux,initrd-start");
 198                                 if (err < 0)
 199                                         puts("error deleting initrd-start\n");
 200
 201                                 err = fdt_delprop(blob, nodeoffset,
 202                                                   "linux,initrd-end");
 203                                 if (err < 0)
 204                                         puts("error deleting initrd-end\n");
 205
 206                                 err = fdt_setprop(blob, nodeoffset,
 207                                                   "linux,initrd-start",
 208                                                   &initrd_start,
 209                                                   sizeof(initrd_start));
 210                                 if (err < 0)
 211                                         puts("error adding initrd-start\n");
 212
 213                                 err = fdt_setprop(blob, nodeoffset,
 214                                                   "linux,initrd-end",
 215                                                   &initrd_end,
 216                                                   sizeof(initrd_end));
 217                                 if (err < 0)
 218                                         puts("error adding linux,initrd-end\n");
 219                         }
 220                 }
 221         }
 222
 223         return 0;
 224 }
 225
 226 void ft_board_setup_ex(void *blob, bd_t *bd)
 227 {
 228         int lpae;
 229         u64 size;
 230         char *env;
 231         u64 *reserve_start;
 232
 233         env = getenv("mem_lpae");
 234         lpae = env && simple_strtol(env, NULL, 0);
 235
 236         if (lpae) {
 237                 /*
 238                  * the initrd and other reserved memory areas are
 239                  * embedded in in the DTB itslef. fix up these addresses
 240                  * to 36 bit format
 241                  */
 242                 reserve_start = (u64 *)((char *)blob +
 243                                        fdt_off_mem_rsvmap(blob));
 244                 while (1) {
 245                         *reserve_start = __cpu_to_be64(*reserve_start);
 246                         size = __cpu_to_be64(*(reserve_start + 1));
 247                         if (size) {
 248                                 *reserve_start -= CONFIG_SYS_SDRAM_BASE;
 249                                 *reserve_start +=
 250                                         CONFIG_SYS_LPAE_SDRAM_BASE;
 251                                 *reserve_start =
 252                                         __cpu_to_be64(*reserve_start);
 253                         } else {
 254                                 break;
 255                         }
 256                         reserve_start += 2;
 257                 }
 258         }
 259
 260         ddr3_check_ecc_int(KS2_DDR3A_EMIF_CTRL_BASE);
 261 }
 262 #endif