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