uboot/board/toradex/colibri_vf/colibri_vf.c
<<
>>
Prefs
   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright 2015-2019 Toradex, Inc.
   4 *
   5 * Based on vf610twr.c:
   6 * Copyright 2013 Freescale Semiconductor, Inc.
   7 */
   8
   9#include <common.h>
  10#include <init.h>
  11#include <asm/global_data.h>
  12
  13#include <asm/arch/clock.h>
  14#include <asm/arch/crm_regs.h>
  15#include <asm/arch/ddrmc-vf610.h>
  16#include <asm/arch/imx-regs.h>
  17#include <asm/arch/iomux-vf610.h>
  18#include <asm/gpio.h>
  19#include <asm/io.h>
  20#include <env.h>
  21#include <fdt_support.h>
  22#include <g_dnl.h>
  23#include <jffs2/load_kernel.h>
  24#include <mtd_node.h>
  25#include <usb.h>
  26
  27#include "../common/tdx-common.h"
  28
  29DECLARE_GLOBAL_DATA_PTR;
  30
  31#define PTC0_GPIO_45            45
  32
  33static struct ddrmc_cr_setting colibri_vf_cr_settings[] = {
  34        { DDRMC_CR79_CTLUPD_AREF(1), 79 },
  35        /* sets manual values for read lvl. (gate) delay of data slice 0/1 */
  36        { DDRMC_CR105_RDLVL_DL_0(28), 105 },
  37        { DDRMC_CR106_RDLVL_GTDL_0(24), 106 },
  38        { DDRMC_CR110_RDLVL_DL_1(28) | DDRMC_CR110_RDLVL_GTDL_1(24), 110 },
  39        { DDRMC_CR102_RDLVL_GT_REGEN | DDRMC_CR102_RDLVL_REG_EN, 102 },
  40
  41        /* AXI */
  42        { DDRMC_CR117_AXI0_W_PRI(0) | DDRMC_CR117_AXI0_R_PRI(0), 117 },
  43        { DDRMC_CR118_AXI1_W_PRI(1) | DDRMC_CR118_AXI1_R_PRI(1), 118 },
  44        { DDRMC_CR120_AXI0_PRI1_RPRI(2) |
  45                   DDRMC_CR120_AXI0_PRI0_RPRI(2), 120 },
  46        { DDRMC_CR121_AXI0_PRI3_RPRI(2) |
  47                   DDRMC_CR121_AXI0_PRI2_RPRI(2), 121 },
  48        { DDRMC_CR122_AXI1_PRI1_RPRI(1) | DDRMC_CR122_AXI1_PRI0_RPRI(1) |
  49                   DDRMC_CR122_AXI0_PRIRLX(100), 122 },
  50        { DDRMC_CR123_AXI1_P_ODR_EN | DDRMC_CR123_AXI1_PRI3_RPRI(1) |
  51                   DDRMC_CR123_AXI1_PRI2_RPRI(1), 123 },
  52        { DDRMC_CR124_AXI1_PRIRLX(100), 124 },
  53        { DDRMC_CR126_PHY_RDLAT(8), 126 },
  54        { DDRMC_CR132_WRLAT_ADJ(5) |
  55                   DDRMC_CR132_RDLAT_ADJ(6), 132 },
  56        { DDRMC_CR137_PHYCTL_DL(2), 137 },
  57        { DDRMC_CR138_PHY_WRLV_MXDL(256) |
  58                   DDRMC_CR138_PHYDRAM_CK_EN(1), 138 },
  59        { DDRMC_CR139_PHY_WRLV_RESPLAT(4) | DDRMC_CR139_PHY_WRLV_LOAD(7) |
  60                   DDRMC_CR139_PHY_WRLV_DLL(3) |
  61                   DDRMC_CR139_PHY_WRLV_EN(3), 139 },
  62        { DDRMC_CR140_PHY_WRLV_WW(64), 140 },
  63        { DDRMC_CR143_RDLV_GAT_MXDL(1536) |
  64                   DDRMC_CR143_RDLV_MXDL(128), 143 },
  65        { DDRMC_CR144_PHY_RDLVL_RES(4) | DDRMC_CR144_PHY_RDLV_LOAD(7) |
  66                   DDRMC_CR144_PHY_RDLV_DLL(3) |
  67                   DDRMC_CR144_PHY_RDLV_EN(3), 144 },
  68        { DDRMC_CR145_PHY_RDLV_RR(64), 145 },
  69        { DDRMC_CR146_PHY_RDLVL_RESP(64), 146 },
  70        { DDRMC_CR147_RDLV_RESP_MASK(983040), 147 },
  71        { DDRMC_CR148_RDLV_GATE_RESP_MASK(983040), 148 },
  72        { DDRMC_CR151_RDLV_GAT_DQ_ZERO_CNT(1) |
  73                   DDRMC_CR151_RDLVL_DQ_ZERO_CNT(1), 151 },
  74
  75        { DDRMC_CR154_PAD_ZQ_EARLY_CMP_EN_TIMER(13) |
  76                   DDRMC_CR154_PAD_ZQ_MODE(1) |
  77                   DDRMC_CR154_DDR_SEL_PAD_CONTR(3) |
  78                   DDRMC_CR154_PAD_ZQ_HW_FOR(1), 154 },
  79        { DDRMC_CR155_PAD_ODT_BYTE1(2) | DDRMC_CR155_PAD_ODT_BYTE0(2), 155 },
  80        { DDRMC_CR158_TWR(6), 158 },
  81        { DDRMC_CR161_ODT_EN(1) | DDRMC_CR161_TODTH_RD(2) |
  82                   DDRMC_CR161_TODTH_WR(2), 161 },
  83        /* end marker */
  84        { 0, -1 }
  85};
  86
  87int dram_init(void)
  88{
  89        static const struct ddr3_jedec_timings timings = {
  90                .tinit             = 5,
  91                .trst_pwron        = 80000,
  92                .cke_inactive      = 200000,
  93                .wrlat             = 5,
  94                .caslat_lin        = 12,
  95                .trc               = 21,
  96                .trrd              = 4,
  97                .tccd              = 4,
  98                .tbst_int_interval = 0,
  99                .tfaw              = 20,
 100                .trp               = 6,
 101                .twtr              = 4,
 102                .tras_min          = 15,
 103                .tmrd              = 4,
 104                .trtp              = 4,
 105                .tras_max          = 28080,
 106                .tmod              = 12,
 107                .tckesr            = 4,
 108                .tcke              = 3,
 109                .trcd_int          = 6,
 110                .tras_lockout      = 0,
 111                .tdal              = 12,
 112                .bstlen            = 3,
 113                .tdll              = 512, /* not applicable since freq. scaling
 114                                           * is not used
 115                                           */
 116                .trp_ab            = 6,
 117                .tref              = 3120,
 118                .trfc              = 64,
 119                .tref_int          = 0,
 120                .tpdex             = 3,
 121                .txpdll            = 10,
 122                .txsnr             = 68,  /* changed to conform to JEDEC
 123                                           * specifications
 124                                           */
 125                .txsr              = 506, /* changed to conform to JEDEC
 126                                           * specifications
 127                                           */
 128                .cksrx             = 5,
 129                .cksre             = 5,
 130                .freq_chg_en       = 0,
 131                .zqcl              = 256,
 132                .zqinit            = 512,
 133                .zqcs              = 64,
 134                .ref_per_zq        = 64,
 135                .zqcs_rotate       = 0,
 136                .aprebit           = 10,
 137                .cmd_age_cnt       = 64,
 138                .age_cnt           = 64,
 139                .q_fullness        = 7,
 140                .odt_rd_mapcs0     = 0,
 141                .odt_wr_mapcs0     = 1,
 142                .wlmrd             = 40,
 143                .wldqsen           = 25,
 144        };
 145
 146        ddrmc_ctrl_init_ddr3(&timings, colibri_vf_cr_settings, NULL, 1, 2);
 147        gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
 148
 149        return 0;
 150}
 151
 152#ifdef CONFIG_VYBRID_GPIO
 153static void setup_iomux_gpio(void)
 154{
 155        static const iomux_v3_cfg_t gpio_pads[] = {
 156                VF610_PAD_PTA17__GPIO_7,
 157                VF610_PAD_PTA20__GPIO_10,
 158                VF610_PAD_PTA21__GPIO_11,
 159                VF610_PAD_PTA30__GPIO_20,
 160                VF610_PAD_PTA31__GPIO_21,
 161                VF610_PAD_PTB0__GPIO_22,
 162                VF610_PAD_PTB1__GPIO_23,
 163                VF610_PAD_PTB6__GPIO_28,
 164                VF610_PAD_PTB7__GPIO_29,
 165                VF610_PAD_PTB8__GPIO_30,
 166                VF610_PAD_PTB9__GPIO_31,
 167                VF610_PAD_PTB12__GPIO_34,
 168                VF610_PAD_PTB13__GPIO_35,
 169                VF610_PAD_PTB16__GPIO_38,
 170                VF610_PAD_PTB17__GPIO_39,
 171                VF610_PAD_PTB18__GPIO_40,
 172                VF610_PAD_PTB21__GPIO_43,
 173                VF610_PAD_PTB22__GPIO_44,
 174                VF610_PAD_PTC0__GPIO_45,
 175                VF610_PAD_PTC1__GPIO_46,
 176                VF610_PAD_PTC2__GPIO_47,
 177                VF610_PAD_PTC3__GPIO_48,
 178                VF610_PAD_PTC4__GPIO_49,
 179                VF610_PAD_PTC5__GPIO_50,
 180                VF610_PAD_PTC6__GPIO_51,
 181                VF610_PAD_PTC7__GPIO_52,
 182                VF610_PAD_PTC8__GPIO_53,
 183                VF610_PAD_PTD31__GPIO_63,
 184                VF610_PAD_PTD30__GPIO_64,
 185                VF610_PAD_PTD29__GPIO_65,
 186                VF610_PAD_PTD28__GPIO_66,
 187                VF610_PAD_PTD27__GPIO_67,
 188                VF610_PAD_PTD26__GPIO_68,
 189                VF610_PAD_PTD25__GPIO_69,
 190                VF610_PAD_PTD24__GPIO_70,
 191                VF610_PAD_PTD9__GPIO_88,
 192                VF610_PAD_PTD10__GPIO_89,
 193                VF610_PAD_PTD11__GPIO_90,
 194                VF610_PAD_PTD12__GPIO_91,
 195                VF610_PAD_PTD13__GPIO_92,
 196                VF610_PAD_PTB23__GPIO_93,
 197                VF610_PAD_PTB26__GPIO_96,
 198                VF610_PAD_PTB28__GPIO_98,
 199                VF610_PAD_PTC30__GPIO_103,
 200                VF610_PAD_PTA7__GPIO_134,
 201        };
 202
 203        imx_iomux_v3_setup_multiple_pads(gpio_pads, ARRAY_SIZE(gpio_pads));
 204}
 205#endif
 206
 207static inline int is_colibri_vf61(void)
 208{
 209        struct mscm *mscm = (struct mscm *)MSCM_BASE_ADDR;
 210
 211        /*
 212         * Detect board type by Level 2 Cache: VF50 don't have any
 213         * Level 2 Cache.
 214         */
 215        return !!mscm->cpxcfg1;
 216}
 217
 218static void clock_init(void)
 219{
 220        struct ccm_reg *ccm = (struct ccm_reg *)CCM_BASE_ADDR;
 221        struct anadig_reg *anadig = (struct anadig_reg *)ANADIG_BASE_ADDR;
 222        u32 pfd_clk_sel, ddr_clk_sel;
 223
 224        clrsetbits_le32(&ccm->ccgr0, CCM_REG_CTRL_MASK,
 225                        CCM_CCGR0_UART0_CTRL_MASK);
 226#ifdef CONFIG_FSL_DSPI
 227        setbits_le32(&ccm->ccgr0, CCM_CCGR0_DSPI1_CTRL_MASK);
 228#endif
 229        clrsetbits_le32(&ccm->ccgr1, CCM_REG_CTRL_MASK,
 230                        CCM_CCGR1_PIT_CTRL_MASK | CCM_CCGR1_WDOGA5_CTRL_MASK);
 231        clrsetbits_le32(&ccm->ccgr2, CCM_REG_CTRL_MASK,
 232                        CCM_CCGR2_IOMUXC_CTRL_MASK | CCM_CCGR2_PORTA_CTRL_MASK |
 233                        CCM_CCGR2_PORTB_CTRL_MASK | CCM_CCGR2_PORTC_CTRL_MASK |
 234                        CCM_CCGR2_PORTD_CTRL_MASK | CCM_CCGR2_PORTE_CTRL_MASK);
 235        clrsetbits_le32(&ccm->ccgr3, CCM_REG_CTRL_MASK,
 236                        CCM_CCGR3_ANADIG_CTRL_MASK | CCM_CCGR3_SCSC_CTRL_MASK);
 237        clrsetbits_le32(&ccm->ccgr4, CCM_REG_CTRL_MASK,
 238                        CCM_CCGR4_WKUP_CTRL_MASK | CCM_CCGR4_CCM_CTRL_MASK |
 239                        CCM_CCGR4_GPC_CTRL_MASK);
 240        clrsetbits_le32(&ccm->ccgr6, CCM_REG_CTRL_MASK,
 241                        CCM_CCGR6_OCOTP_CTRL_MASK | CCM_CCGR6_DDRMC_CTRL_MASK);
 242        clrsetbits_le32(&ccm->ccgr7, CCM_REG_CTRL_MASK,
 243                        CCM_CCGR7_SDHC1_CTRL_MASK);
 244        clrsetbits_le32(&ccm->ccgr9, CCM_REG_CTRL_MASK,
 245                        CCM_CCGR9_FEC0_CTRL_MASK | CCM_CCGR9_FEC1_CTRL_MASK);
 246        clrsetbits_le32(&ccm->ccgr10, CCM_REG_CTRL_MASK,
 247                        CCM_CCGR10_NFC_CTRL_MASK);
 248
 249#ifdef CONFIG_USB_EHCI_VF
 250        setbits_le32(&ccm->ccgr1, CCM_CCGR1_USBC0_CTRL_MASK);
 251        setbits_le32(&ccm->ccgr7, CCM_CCGR7_USBC1_CTRL_MASK);
 252
 253        clrsetbits_le32(&anadig->pll3_ctrl, ANADIG_PLL3_CTRL_BYPASS |
 254                        ANADIG_PLL3_CTRL_POWERDOWN |
 255                        ANADIG_PLL3_CTRL_DIV_SELECT,
 256                        ANADIG_PLL3_CTRL_ENABLE);
 257        clrsetbits_le32(&anadig->pll7_ctrl, ANADIG_PLL7_CTRL_BYPASS |
 258                        ANADIG_PLL7_CTRL_POWERDOWN |
 259                        ANADIG_PLL7_CTRL_DIV_SELECT,
 260                        ANADIG_PLL7_CTRL_ENABLE);
 261#endif
 262
 263        clrsetbits_le32(&anadig->pll5_ctrl, ANADIG_PLL5_CTRL_BYPASS |
 264                        ANADIG_PLL5_CTRL_POWERDOWN, ANADIG_PLL5_CTRL_ENABLE |
 265                        ANADIG_PLL5_CTRL_DIV_SELECT);
 266
 267        if (is_colibri_vf61()) {
 268                clrsetbits_le32(&anadig->pll2_ctrl, ANADIG_PLL5_CTRL_BYPASS |
 269                                ANADIG_PLL2_CTRL_POWERDOWN,
 270                                ANADIG_PLL2_CTRL_ENABLE |
 271                                ANADIG_PLL2_CTRL_DIV_SELECT);
 272        }
 273
 274        clrsetbits_le32(&anadig->pll1_ctrl, ANADIG_PLL1_CTRL_POWERDOWN,
 275                        ANADIG_PLL1_CTRL_ENABLE | ANADIG_PLL1_CTRL_DIV_SELECT);
 276
 277        clrsetbits_le32(&ccm->ccr, CCM_CCR_OSCNT_MASK,
 278                        CCM_CCR_FIRC_EN | CCM_CCR_OSCNT(5));
 279
 280        /* See "Typical PLL Configuration" */
 281        if (is_colibri_vf61()) {
 282                pfd_clk_sel = CCM_CCSR_PLL1_PFD_CLK_SEL(1);
 283                ddr_clk_sel = CCM_CCSR_DDRC_CLK_SEL(0);
 284        } else {
 285                pfd_clk_sel = CCM_CCSR_PLL1_PFD_CLK_SEL(3);
 286                ddr_clk_sel = CCM_CCSR_DDRC_CLK_SEL(1);
 287        }
 288
 289        clrsetbits_le32(&ccm->ccsr, CCM_REG_CTRL_MASK, pfd_clk_sel |
 290                        CCM_CCSR_PLL2_PFD4_EN | CCM_CCSR_PLL2_PFD3_EN |
 291                        CCM_CCSR_PLL2_PFD2_EN | CCM_CCSR_PLL2_PFD1_EN |
 292                        CCM_CCSR_PLL1_PFD4_EN | CCM_CCSR_PLL1_PFD3_EN |
 293                        CCM_CCSR_PLL1_PFD2_EN | CCM_CCSR_PLL1_PFD1_EN |
 294                        ddr_clk_sel | CCM_CCSR_FAST_CLK_SEL(1) |
 295                        CCM_CCSR_SYS_CLK_SEL(4));
 296
 297        clrsetbits_le32(&ccm->cacrr, CCM_REG_CTRL_MASK,
 298                        CCM_CACRR_IPG_CLK_DIV(1) | CCM_CACRR_BUS_CLK_DIV(2) |
 299                        CCM_CACRR_ARM_CLK_DIV(0));
 300        clrsetbits_le32(&ccm->cscmr1, CCM_REG_CTRL_MASK,
 301                        CCM_CSCMR1_ESDHC1_CLK_SEL(3) |
 302                        CCM_CSCMR1_NFC_CLK_SEL(0));
 303        clrsetbits_le32(&ccm->cscdr1, CCM_REG_CTRL_MASK,
 304                        CCM_CSCDR1_RMII_CLK_EN);
 305        clrsetbits_le32(&ccm->cscdr2, CCM_REG_CTRL_MASK,
 306                        CCM_CSCDR2_ESDHC1_EN | CCM_CSCDR2_ESDHC1_CLK_DIV(0) |
 307                        CCM_CSCDR2_NFC_EN);
 308        clrsetbits_le32(&ccm->cscdr3, CCM_REG_CTRL_MASK,
 309                        CCM_CSCDR3_NFC_PRE_DIV(3));
 310        clrsetbits_le32(&ccm->cscmr2, CCM_REG_CTRL_MASK,
 311                        CCM_CSCMR2_RMII_CLK_SEL(2));
 312}
 313
 314static void mscm_init(void)
 315{
 316        struct mscm_ir *mscmir = (struct mscm_ir *)MSCM_IR_BASE_ADDR;
 317        int i;
 318
 319        for (i = 0; i < MSCM_IRSPRC_NUM; i++)
 320                writew(MSCM_IRSPRC_CP0_EN, &mscmir->irsprc[i]);
 321}
 322
 323int board_early_init_f(void)
 324{
 325        clock_init();
 326        mscm_init();
 327
 328#ifdef CONFIG_VYBRID_GPIO
 329        setup_iomux_gpio();
 330#endif
 331
 332        return 0;
 333}
 334
 335#ifdef CONFIG_BOARD_LATE_INIT
 336int board_late_init(void)
 337{
 338        struct src *src = (struct src *)SRC_BASE_ADDR;
 339
 340        if (((src->sbmr2 & SRC_SBMR2_BMOD_MASK) >> SRC_SBMR2_BMOD_SHIFT)
 341                        == SRC_SBMR2_BMOD_SERIAL) {
 342                printf("Serial Downloader recovery mode, disable autoboot\n");
 343                env_set("bootdelay", "-1");
 344        }
 345
 346        return 0;
 347}
 348#endif /* CONFIG_BOARD_LATE_INIT */
 349
 350int board_init(void)
 351{
 352        struct scsc_reg *scsc = (struct scsc_reg *)SCSC_BASE_ADDR;
 353
 354        /* address of boot parameters */
 355        gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
 356
 357        /*
 358         * Enable external 32K Oscillator
 359         *
 360         * The internal clock experiences significant drift
 361         * so we must use the external oscillator in order
 362         * to maintain correct time in the hwclock
 363         */
 364        setbits_le32(&scsc->sosc_ctr, SCSC_SOSC_CTR_SOSC_EN);
 365
 366        return 0;
 367}
 368
 369int checkboard(void)
 370{
 371        if (is_colibri_vf61())
 372                puts("Model: Toradex Colibri VF61\n");
 373        else
 374                puts("Model: Toradex Colibri VF50\n");
 375
 376        return 0;
 377}
 378
 379#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
 380int ft_board_setup(void *blob, struct bd_info *bd)
 381{
 382#ifdef CONFIG_FDT_FIXUP_PARTITIONS
 383        static const struct node_info nodes[] = {
 384                { "fsl,vf610-nfc", MTD_DEV_TYPE_NAND, }, /* NAND flash */
 385        };
 386
 387        /* Update partition nodes using info from mtdparts env var */
 388        puts("   Updating MTD partitions...\n");
 389        fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));
 390#endif
 391
 392        return ft_common_board_setup(blob, bd);
 393}
 394#endif
 395
 396/*
 397 * Backlight off before OS handover
 398 */
 399void board_preboot_os(void)
 400{
 401        gpio_request(PTC0_GPIO_45, "BL_ON");
 402        gpio_direction_output(PTC0_GPIO_45, 0);
 403}
 404