uboot/board/ti/ks2_evm/board_k2g.c
<<
>>
Prefs
   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * K2G EVM : Board initialization
   4 *
   5 * (C) Copyright 2015
   6 *     Texas Instruments Incorporated, <www.ti.com>
   7 */
   8#include <common.h>
   9#include <eeprom.h>
  10#include <env.h>
  11#include <hang.h>
  12#include <image.h>
  13#include <init.h>
  14#include <asm/arch/clock.h>
  15#include <asm/ti-common/keystone_net.h>
  16#include <asm/arch/psc_defs.h>
  17#include <asm/arch/mmc_host_def.h>
  18#include <fdtdec.h>
  19#include <i2c.h>
  20#include <remoteproc.h>
  21#include <linux/bitops.h>
  22#include <linux/delay.h>
  23#include "mux-k2g.h"
  24#include "../common/board_detect.h"
  25
  26#define K2G_GP_AUDIO_CODEC_ADDRESS      0x1B
  27
  28const unsigned int sysclk_array[MAX_SYSCLK] = {
  29        19200000,
  30        24000000,
  31        25000000,
  32        26000000,
  33};
  34
  35unsigned int get_external_clk(u32 clk)
  36{
  37        unsigned int clk_freq;
  38        u8 sysclk_index = get_sysclk_index();
  39
  40        switch (clk) {
  41        case sys_clk:
  42                clk_freq = sysclk_array[sysclk_index];
  43                break;
  44        case pa_clk:
  45                clk_freq = sysclk_array[sysclk_index];
  46                break;
  47        case tetris_clk:
  48                clk_freq = sysclk_array[sysclk_index];
  49                break;
  50        case ddr3a_clk:
  51                clk_freq = sysclk_array[sysclk_index];
  52                break;
  53        case uart_clk:
  54                clk_freq = sysclk_array[sysclk_index];
  55                break;
  56        default:
  57                clk_freq = 0;
  58                break;
  59        }
  60
  61        return clk_freq;
  62}
  63
  64int speeds[DEVSPEED_NUMSPDS] = {
  65        SPD400,
  66        SPD600,
  67        SPD800,
  68        SPD900,
  69        SPD1000,
  70        SPD900,
  71        SPD800,
  72        SPD600,
  73        SPD400,
  74        SPD200,
  75};
  76
  77static int dev_speeds[DEVSPEED_NUMSPDS] = {
  78        SPD600,
  79        SPD800,
  80        SPD900,
  81        SPD1000,
  82        SPD900,
  83        SPD800,
  84        SPD600,
  85        SPD400,
  86};
  87
  88static struct pll_init_data main_pll_config[MAX_SYSCLK][NUM_SPDS] = {
  89        [SYSCLK_19MHz] = {
  90                [SPD400]        = {MAIN_PLL, 125, 3, 2},
  91                [SPD600]        = {MAIN_PLL, 125, 2, 2},
  92                [SPD800]        = {MAIN_PLL, 250, 3, 2},
  93                [SPD900]        = {MAIN_PLL, 187, 2, 2},
  94                [SPD1000]       = {MAIN_PLL, 104, 1, 2},
  95        },
  96        [SYSCLK_24MHz] = {
  97                [SPD400]        = {MAIN_PLL, 100, 3, 2},
  98                [SPD600]        = {MAIN_PLL, 300, 6, 2},
  99                [SPD800]        = {MAIN_PLL, 200, 3, 2},
 100                [SPD900]        = {MAIN_PLL, 75, 1, 2},
 101                [SPD1000]       = {MAIN_PLL, 250, 3, 2},
 102        },
 103        [SYSCLK_25MHz] = {
 104                [SPD400]        = {MAIN_PLL, 32, 1, 2},
 105                [SPD600]        = {MAIN_PLL, 48, 1, 2},
 106                [SPD800]        = {MAIN_PLL, 64, 1, 2},
 107                [SPD900]        = {MAIN_PLL, 72, 1, 2},
 108                [SPD1000]       = {MAIN_PLL, 80, 1, 2},
 109        },
 110        [SYSCLK_26MHz] = {
 111                [SPD400]        = {MAIN_PLL, 400, 13, 2},
 112                [SPD600]        = {MAIN_PLL, 230, 5, 2},
 113                [SPD800]        = {MAIN_PLL, 123, 2, 2},
 114                [SPD900]        = {MAIN_PLL, 69, 1, 2},
 115                [SPD1000]       = {MAIN_PLL, 384, 5, 2},
 116        },
 117};
 118
 119static struct pll_init_data tetris_pll_config[MAX_SYSCLK][NUM_SPDS] = {
 120        [SYSCLK_19MHz] = {
 121                [SPD200]        = {TETRIS_PLL, 625, 6, 10},
 122                [SPD400]        = {TETRIS_PLL, 125, 1, 6},
 123                [SPD600]        = {TETRIS_PLL, 125, 1, 4},
 124                [SPD800]        = {TETRIS_PLL, 333, 2, 4},
 125                [SPD900]        = {TETRIS_PLL, 187, 2, 2},
 126                [SPD1000]       = {TETRIS_PLL, 104, 1, 2},
 127        },
 128        [SYSCLK_24MHz] = {
 129                [SPD200]        = {TETRIS_PLL, 250, 3, 10},
 130                [SPD400]        = {TETRIS_PLL, 100, 1, 6},
 131                [SPD600]        = {TETRIS_PLL, 100, 1, 4},
 132                [SPD800]        = {TETRIS_PLL, 400, 3, 4},
 133                [SPD900]        = {TETRIS_PLL, 75, 1, 2},
 134                [SPD1000]       = {TETRIS_PLL, 250, 3, 2},
 135        },
 136        [SYSCLK_25MHz] = {
 137                [SPD200]        = {TETRIS_PLL, 80, 1, 10},
 138                [SPD400]        = {TETRIS_PLL, 96, 1, 6},
 139                [SPD600]        = {TETRIS_PLL, 96, 1, 4},
 140                [SPD800]        = {TETRIS_PLL, 128, 1, 4},
 141                [SPD900]        = {TETRIS_PLL, 72, 1, 2},
 142                [SPD1000]       = {TETRIS_PLL, 80, 1, 2},
 143        },
 144        [SYSCLK_26MHz] = {
 145                [SPD200]        = {TETRIS_PLL, 307, 4, 10},
 146                [SPD400]        = {TETRIS_PLL, 369, 4, 6},
 147                [SPD600]        = {TETRIS_PLL, 369, 4, 4},
 148                [SPD800]        = {TETRIS_PLL, 123, 1, 4},
 149                [SPD900]        = {TETRIS_PLL, 69, 1, 2},
 150                [SPD1000]       = {TETRIS_PLL, 384, 5, 2},
 151        },
 152};
 153
 154static struct pll_init_data uart_pll_config[MAX_SYSCLK] = {
 155        [SYSCLK_19MHz] = {UART_PLL, 160, 1, 8},
 156        [SYSCLK_24MHz] = {UART_PLL, 128, 1, 8},
 157        [SYSCLK_25MHz] = {UART_PLL, 768, 5, 10},
 158        [SYSCLK_26MHz] = {UART_PLL, 384, 13, 2},
 159};
 160
 161static struct pll_init_data nss_pll_config[MAX_SYSCLK] = {
 162        [SYSCLK_19MHz] = {NSS_PLL, 625, 6, 2},
 163        [SYSCLK_24MHz] = {NSS_PLL, 250, 3, 2},
 164        [SYSCLK_25MHz] = {NSS_PLL, 80, 1, 2},
 165        [SYSCLK_26MHz] = {NSS_PLL, 1000, 13, 2},
 166};
 167
 168static struct pll_init_data ddr3_pll_config_800[MAX_SYSCLK] = {
 169        [SYSCLK_19MHz] = {DDR3A_PLL, 167, 1, 16},
 170        [SYSCLK_24MHz] = {DDR3A_PLL, 133, 1, 16},
 171        [SYSCLK_25MHz] = {DDR3A_PLL, 128, 1, 16},
 172        [SYSCLK_26MHz] = {DDR3A_PLL, 123, 1, 16},
 173};
 174
 175static struct pll_init_data ddr3_pll_config_1066[MAX_SYSCLK] = {
 176        [SYSCLK_19MHz] = {DDR3A_PLL, 194, 1, 14},
 177        [SYSCLK_24MHz] = {DDR3A_PLL, 156, 1, 14},
 178        [SYSCLK_25MHz] = {DDR3A_PLL, 149, 1, 14},
 179        [SYSCLK_26MHz] = {DDR3A_PLL, 144, 1, 14},
 180};
 181
 182struct pll_init_data *get_pll_init_data(int pll)
 183{
 184        int speed;
 185        struct pll_init_data *data = NULL;
 186        u8 sysclk_index = get_sysclk_index();
 187
 188        switch (pll) {
 189        case MAIN_PLL:
 190                speed = get_max_dev_speed(dev_speeds);
 191                data = &main_pll_config[sysclk_index][speed];
 192                break;
 193        case TETRIS_PLL:
 194                speed = get_max_arm_speed(speeds);
 195                data = &tetris_pll_config[sysclk_index][speed];
 196                break;
 197        case NSS_PLL:
 198                data = &nss_pll_config[sysclk_index];
 199                break;
 200        case UART_PLL:
 201                data = &uart_pll_config[sysclk_index];
 202                break;
 203        case DDR3_PLL:
 204                if (cpu_revision() & CPU_66AK2G1x) {
 205                        speed = get_max_arm_speed(speeds);
 206                        if (speed == SPD1000)
 207                                data = &ddr3_pll_config_1066[sysclk_index];
 208                        else
 209                                data = &ddr3_pll_config_800[sysclk_index];
 210                } else {
 211                        data = &ddr3_pll_config_800[sysclk_index];
 212                }
 213                break;
 214        default:
 215                data = NULL;
 216        }
 217
 218        return data;
 219}
 220
 221s16 divn_val[16] = {
 222        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
 223};
 224
 225#if defined(CONFIG_MMC)
 226int board_mmc_init(struct bd_info *bis)
 227{
 228        if (psc_enable_module(KS2_LPSC_MMC)) {
 229                printf("%s module enabled failed\n", __func__);
 230                return -1;
 231        }
 232
 233        if (board_is_k2g_gp() || board_is_k2g_g1())
 234                omap_mmc_init(0, 0, 0, -1, -1);
 235
 236        omap_mmc_init(1, 0, 0, -1, -1);
 237        return 0;
 238}
 239#endif
 240
 241#if defined(CONFIG_MULTI_DTB_FIT)
 242int board_fit_config_name_match(const char *name)
 243{
 244        bool eeprom_read = board_ti_was_eeprom_read();
 245
 246        if (!strcmp(name, "keystone-k2g-generic") && !eeprom_read)
 247                return 0;
 248        else if (!strcmp(name, "keystone-k2g-evm") &&
 249                (board_ti_is("66AK2GGP") || board_ti_is("66AK2GG1")))
 250                return 0;
 251        else if (!strcmp(name, "keystone-k2g-ice") &&
 252                 (board_ti_is("66AK2GIC") || board_is_k2g_i1()))
 253                return 0;
 254        else
 255                return -1;
 256}
 257#endif
 258
 259#if defined(CONFIG_DTB_RESELECT)
 260static int k2g_alt_board_detect(void)
 261{
 262#if !CONFIG_IS_ENABLED(DM_I2C)
 263        int rc;
 264
 265        rc = i2c_set_bus_num(1);
 266        if (rc)
 267                return rc;
 268
 269        rc = i2c_probe(K2G_GP_AUDIO_CODEC_ADDRESS);
 270        if (rc)
 271                return rc;
 272#else
 273        struct udevice *bus, *dev;
 274        int rc;
 275
 276        rc = uclass_get_device_by_seq(UCLASS_I2C, 1, &bus);
 277        if (rc)
 278                return rc;
 279        rc = dm_i2c_probe(bus, K2G_GP_AUDIO_CODEC_ADDRESS, 0, &dev);
 280        if (rc)
 281                return rc;
 282#endif
 283        ti_i2c_eeprom_am_set("66AK2GGP", "1.0X");
 284
 285        return 0;
 286}
 287
 288static void k2g_reset_mux_config(void)
 289{
 290        /* Unlock the reset mux register */
 291        clrbits_le32(KS2_RSTMUX8, RSTMUX_LOCK8_MASK);
 292
 293        /* Configure BOOTCFG_RSTMUX8 for WDT event to cause a device reset */
 294        clrsetbits_le32(KS2_RSTMUX8, RSTMUX_OMODE8_MASK,
 295                        RSTMUX_OMODE8_DEV_RESET << RSTMUX_OMODE8_SHIFT);
 296
 297        /* lock the reset mux register to prevent any spurious writes. */
 298        setbits_le32(KS2_RSTMUX8, RSTMUX_LOCK8_MASK);
 299}
 300
 301int embedded_dtb_select(void)
 302{
 303        int rc;
 304        rc = ti_i2c_eeprom_am_get(CONFIG_EEPROM_BUS_ADDRESS,
 305                        CONFIG_EEPROM_CHIP_ADDRESS);
 306        if (rc) {
 307                rc = k2g_alt_board_detect();
 308                if (rc) {
 309                        printf("Unable to do board detection\n");
 310                        return -1;
 311                }
 312        }
 313
 314        fdtdec_setup();
 315
 316        k2g_mux_config();
 317
 318        k2g_reset_mux_config();
 319
 320        if (board_is_k2g_gp() || board_is_k2g_g1()) {
 321                /* deassert FLASH_HOLD */
 322                clrbits_le32(K2G_GPIO1_BANK2_BASE + K2G_GPIO_DIR_OFFSET,
 323                             BIT(9));
 324                setbits_le32(K2G_GPIO1_BANK2_BASE + K2G_GPIO_SETDATA_OFFSET,
 325                             BIT(9));
 326        } else if (board_is_k2g_ice() || board_is_k2g_i1()) {
 327                /* GBE Phy workaround. For Phy to latch the input
 328                 * configuration, a GPIO reset is asserted at the
 329                 * Phy reset pin to latch configuration correctly after SoC
 330                 * reset. GPIO0 Pin 10 (Ball AA20) is used for this on ICE
 331                 * board. Just do a low to high transition.
 332                 */
 333                clrbits_le32(K2G_GPIO0_BANK0_BASE + K2G_GPIO_DIR_OFFSET,
 334                             BIT(10));
 335                setbits_le32(K2G_GPIO0_BANK0_BASE + K2G_GPIO_CLRDATA_OFFSET,
 336                             BIT(10));
 337                /* Delay just to get a transition to high */
 338                udelay(100);
 339                setbits_le32(K2G_GPIO0_BANK0_BASE + K2G_GPIO_SETDATA_OFFSET,
 340                             BIT(10));
 341        }
 342
 343        return 0;
 344}
 345#endif
 346
 347#ifdef CONFIG_BOARD_LATE_INIT
 348int board_late_init(void)
 349{
 350#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_TI_I2C_BOARD_DETECT)
 351        int rc;
 352
 353        rc = ti_i2c_eeprom_am_get(CONFIG_EEPROM_BUS_ADDRESS,
 354                        CONFIG_EEPROM_CHIP_ADDRESS);
 355        if (rc)
 356                printf("ti_i2c_eeprom_init failed %d\n", rc);
 357
 358        board_ti_set_ethaddr(1);
 359#endif
 360
 361#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 362        if (board_is_k2g_gp())
 363                env_set("board_name", "66AK2GGP\0");
 364        else if (board_is_k2g_g1())
 365                env_set("board_name", "66AK2GG1\0");
 366        else if (board_is_k2g_ice())
 367                env_set("board_name", "66AK2GIC\0");
 368        else if (board_is_k2g_i1())
 369                env_set("board_name", "66AK2GI1\0");
 370#endif
 371        return 0;
 372}
 373#endif
 374
 375#ifdef CONFIG_BOARD_EARLY_INIT_F
 376int board_early_init_f(void)
 377{
 378        init_plls();
 379
 380        k2g_mux_config();
 381
 382        return 0;
 383}
 384#endif
 385
 386#ifdef CONFIG_SPL_BUILD
 387void spl_init_keystone_plls(void)
 388{
 389        init_plls();
 390}
 391#endif
 392
 393#ifdef CONFIG_TI_SECURE_DEVICE
 394void board_pmmc_image_process(ulong pmmc_image, size_t pmmc_size)
 395{
 396        int id = env_get_ulong("dev_pmmc", 10, 0);
 397        int ret;
 398
 399        if (!rproc_is_initialized())
 400                rproc_init();
 401
 402        ret = rproc_load(id, pmmc_image, pmmc_size);
 403        printf("Load Remote Processor %d with data@addr=0x%08lx %u bytes:%s\n",
 404               id, pmmc_image, pmmc_size, ret ? " Failed!" : " Success!");
 405
 406        if (!ret)
 407                rproc_start(id);
 408}
 409
 410U_BOOT_FIT_LOADABLE_HANDLER(IH_TYPE_PMMC, board_pmmc_image_process);
 411#endif
 412