board/toradex/colibri_vf/colibri_vf.c

   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
  11 #include <asm/arch/clock.h>
  12 #include <asm/arch/crm_regs.h>
  13 #include <asm/arch/ddrmc-vf610.h>
  14 #include <asm/arch/imx-regs.h>
  15 #include <asm/arch/iomux-vf610.h>
  16 #include <asm/gpio.h>
  17 #include <asm/io.h>
  18 #include <fdt_support.h>
  19 #include <fsl_dcu_fb.h>
  20 #include <g_dnl.h>
  21 #include <jffs2/load_kernel.h>
  22 #include <mtd_node.h>
  23 #include <usb.h>
  24
  25 #include "../common/tdx-common.h"
  26
  27 DECLARE_GLOBAL_DATA_PTR;
  28
  29 #define PTC0_GPIO_45            45
  30
  31 static struct ddrmc_cr_setting colibri_vf_cr_settings[] = {
  32         /* AXI */
  33         { DDRMC_CR117_AXI0_W_PRI(0) | DDRMC_CR117_AXI0_R_PRI(0), 117 },
  34         { DDRMC_CR118_AXI1_W_PRI(1) | DDRMC_CR118_AXI1_R_PRI(1), 118 },
  35         { DDRMC_CR120_AXI0_PRI1_RPRI(2) |
  36                    DDRMC_CR120_AXI0_PRI0_RPRI(2), 120 },
  37         { DDRMC_CR121_AXI0_PRI3_RPRI(2) |
  38                    DDRMC_CR121_AXI0_PRI2_RPRI(2), 121 },
  39         { DDRMC_CR122_AXI1_PRI1_RPRI(1) | DDRMC_CR122_AXI1_PRI0_RPRI(1) |
  40                    DDRMC_CR122_AXI0_PRIRLX(100), 122 },
  41         { DDRMC_CR123_AXI1_P_ODR_EN | DDRMC_CR123_AXI1_PRI3_RPRI(1) |
  42                    DDRMC_CR123_AXI1_PRI2_RPRI(1), 123 },
  43         { DDRMC_CR124_AXI1_PRIRLX(100), 124 },
  44         { DDRMC_CR126_PHY_RDLAT(8), 126 },
  45         { DDRMC_CR132_WRLAT_ADJ(5) |
  46                    DDRMC_CR132_RDLAT_ADJ(6), 132 },
  47         { DDRMC_CR137_PHYCTL_DL(2), 137 },
  48         { DDRMC_CR138_PHY_WRLV_MXDL(256) |
  49                    DDRMC_CR138_PHYDRAM_CK_EN(1), 138 },
  50         { DDRMC_CR139_PHY_WRLV_RESPLAT(4) | DDRMC_CR139_PHY_WRLV_LOAD(7) |
  51                    DDRMC_CR139_PHY_WRLV_DLL(3) |
  52                    DDRMC_CR139_PHY_WRLV_EN(3), 139 },
  53         { DDRMC_CR140_PHY_WRLV_WW(64), 140 },
  54         { DDRMC_CR143_RDLV_GAT_MXDL(1536) |
  55                    DDRMC_CR143_RDLV_MXDL(128), 143 },
  56         { DDRMC_CR144_PHY_RDLVL_RES(4) | DDRMC_CR144_PHY_RDLV_LOAD(7) |
  57                    DDRMC_CR144_PHY_RDLV_DLL(3) |
  58                    DDRMC_CR144_PHY_RDLV_EN(3), 144 },
  59         { DDRMC_CR145_PHY_RDLV_RR(64), 145 },
  60         { DDRMC_CR146_PHY_RDLVL_RESP(64), 146 },
  61         { DDRMC_CR147_RDLV_RESP_MASK(983040), 147 },
  62         { DDRMC_CR148_RDLV_GATE_RESP_MASK(983040), 148 },
  63         { DDRMC_CR151_RDLV_GAT_DQ_ZERO_CNT(1) |
  64                    DDRMC_CR151_RDLVL_DQ_ZERO_CNT(1), 151 },
  65
  66         { DDRMC_CR154_PAD_ZQ_EARLY_CMP_EN_TIMER(13) |
  67                    DDRMC_CR154_PAD_ZQ_MODE(1) |
  68                    DDRMC_CR154_DDR_SEL_PAD_CONTR(3) |
  69                    DDRMC_CR154_PAD_ZQ_HW_FOR(1), 154 },
  70         { DDRMC_CR155_PAD_ODT_BYTE1(2) | DDRMC_CR155_PAD_ODT_BYTE0(2), 155 },
  71         { DDRMC_CR158_TWR(6), 158 },
  72         { DDRMC_CR161_ODT_EN(1) | DDRMC_CR161_TODTH_RD(2) |
  73                    DDRMC_CR161_TODTH_WR(2), 161 },
  74         /* end marker */
  75         { 0, -1 }
  76 };
  77
  78 int dram_init(void)
  79 {
  80         static const struct ddr3_jedec_timings timings = {
  81                 .tinit             = 5,
  82                 .trst_pwron        = 80000,
  83                 .cke_inactive      = 200000,
  84                 .wrlat             = 5,
  85                 .caslat_lin        = 12,
  86                 .trc               = 21,
  87                 .trrd              = 4,
  88                 .tccd              = 4,
  89                 .tbst_int_interval = 0,
  90                 .tfaw              = 20,
  91                 .trp               = 6,
  92                 .twtr              = 4,
  93                 .tras_min          = 15,
  94                 .tmrd              = 4,
  95                 .trtp              = 4,
  96                 .tras_max          = 28080,
  97                 .tmod              = 12,
  98                 .tckesr            = 4,
  99                 .tcke              = 3,
 100                 .trcd_int          = 6,
 101                 .tras_lockout      = 0,
 102                 .tdal              = 12,
 103                 .bstlen            = 3,
 104                 .tdll              = 512, /* not applicable since freq. scaling
 105                                            * is not used
 106                                            */
 107                 .trp_ab            = 6,
 108                 .tref              = 3120,
 109                 .trfc              = 64,
 110                 .tref_int          = 0,
 111                 .tpdex             = 3,
 112                 .txpdll            = 10,
 113                 .txsnr             = 68,  /* changed to conform to JEDEC
 114                                            * specifications
 115                                            */
 116                 .txsr              = 506, /* changed to conform to JEDEC
 117                                            * specifications
 118                                            */
 119                 .cksrx             = 5,
 120                 .cksre             = 5,
 121                 .freq_chg_en       = 0,
 122                 .zqcl              = 256,
 123                 .zqinit            = 512,
 124                 .zqcs              = 64,
 125                 .ref_per_zq        = 64,
 126                 .zqcs_rotate       = 0,
 127                 .aprebit           = 10,
 128                 .cmd_age_cnt       = 64,
 129                 .age_cnt           = 64,
 130                 .q_fullness        = 7,
 131                 .odt_rd_mapcs0     = 0,
 132                 .odt_wr_mapcs0     = 1,
 133                 .wlmrd             = 40,
 134                 .wldqsen           = 25,
 135         };
 136
 137         ddrmc_ctrl_init_ddr3(&timings, colibri_vf_cr_settings, NULL, 1, 2);
 138         gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
 139
 140         return 0;
 141 }
 142
 143 #ifdef CONFIG_VYBRID_GPIO
 144 static void setup_iomux_gpio(void)
 145 {
 146         static const iomux_v3_cfg_t gpio_pads[] = {
 147                 VF610_PAD_PTA17__GPIO_7,
 148                 VF610_PAD_PTA20__GPIO_10,
 149                 VF610_PAD_PTA21__GPIO_11,
 150                 VF610_PAD_PTA30__GPIO_20,
 151                 VF610_PAD_PTA31__GPIO_21,
 152                 VF610_PAD_PTB0__GPIO_22,
 153                 VF610_PAD_PTB1__GPIO_23,
 154                 VF610_PAD_PTB6__GPIO_28,
 155                 VF610_PAD_PTB7__GPIO_29,
 156                 VF610_PAD_PTB8__GPIO_30,
 157                 VF610_PAD_PTB9__GPIO_31,
 158                 VF610_PAD_PTB12__GPIO_34,
 159                 VF610_PAD_PTB13__GPIO_35,
 160                 VF610_PAD_PTB16__GPIO_38,
 161                 VF610_PAD_PTB17__GPIO_39,
 162                 VF610_PAD_PTB18__GPIO_40,
 163                 VF610_PAD_PTB21__GPIO_43,
 164                 VF610_PAD_PTB22__GPIO_44,
 165                 VF610_PAD_PTC0__GPIO_45,
 166                 VF610_PAD_PTC1__GPIO_46,
 167                 VF610_PAD_PTC2__GPIO_47,
 168                 VF610_PAD_PTC3__GPIO_48,
 169                 VF610_PAD_PTC4__GPIO_49,
 170                 VF610_PAD_PTC5__GPIO_50,
 171                 VF610_PAD_PTC6__GPIO_51,
 172                 VF610_PAD_PTC7__GPIO_52,
 173                 VF610_PAD_PTC8__GPIO_53,
 174                 VF610_PAD_PTD31__GPIO_63,
 175                 VF610_PAD_PTD30__GPIO_64,
 176                 VF610_PAD_PTD29__GPIO_65,
 177                 VF610_PAD_PTD28__GPIO_66,
 178                 VF610_PAD_PTD27__GPIO_67,
 179                 VF610_PAD_PTD26__GPIO_68,
 180                 VF610_PAD_PTD25__GPIO_69,
 181                 VF610_PAD_PTD24__GPIO_70,
 182                 VF610_PAD_PTD9__GPIO_88,
 183                 VF610_PAD_PTD10__GPIO_89,
 184                 VF610_PAD_PTD11__GPIO_90,
 185                 VF610_PAD_PTD12__GPIO_91,
 186                 VF610_PAD_PTD13__GPIO_92,
 187                 VF610_PAD_PTB23__GPIO_93,
 188                 VF610_PAD_PTB26__GPIO_96,
 189                 VF610_PAD_PTB28__GPIO_98,
 190                 VF610_PAD_PTC30__GPIO_103,
 191                 VF610_PAD_PTA7__GPIO_134,
 192         };
 193
 194         imx_iomux_v3_setup_multiple_pads(gpio_pads, ARRAY_SIZE(gpio_pads));
 195 }
 196 #endif
 197
 198 #ifdef CONFIG_VIDEO_FSL_DCU_FB
 199 static void setup_iomux_fsl_dcu(void)
 200 {
 201         static const iomux_v3_cfg_t dcu0_pads[] = {
 202                 VF610_PAD_PTE0__DCU0_HSYNC,
 203                 VF610_PAD_PTE1__DCU0_VSYNC,
 204                 VF610_PAD_PTE2__DCU0_PCLK,
 205                 VF610_PAD_PTE4__DCU0_DE,
 206                 VF610_PAD_PTE5__DCU0_R0,
 207                 VF610_PAD_PTE6__DCU0_R1,
 208                 VF610_PAD_PTE7__DCU0_R2,
 209                 VF610_PAD_PTE8__DCU0_R3,
 210                 VF610_PAD_PTE9__DCU0_R4,
 211                 VF610_PAD_PTE10__DCU0_R5,
 212                 VF610_PAD_PTE11__DCU0_R6,
 213                 VF610_PAD_PTE12__DCU0_R7,
 214                 VF610_PAD_PTE13__DCU0_G0,
 215                 VF610_PAD_PTE14__DCU0_G1,
 216                 VF610_PAD_PTE15__DCU0_G2,
 217                 VF610_PAD_PTE16__DCU0_G3,
 218                 VF610_PAD_PTE17__DCU0_G4,
 219                 VF610_PAD_PTE18__DCU0_G5,
 220                 VF610_PAD_PTE19__DCU0_G6,
 221                 VF610_PAD_PTE20__DCU0_G7,
 222                 VF610_PAD_PTE21__DCU0_B0,
 223                 VF610_PAD_PTE22__DCU0_B1,
 224                 VF610_PAD_PTE23__DCU0_B2,
 225                 VF610_PAD_PTE24__DCU0_B3,
 226                 VF610_PAD_PTE25__DCU0_B4,
 227                 VF610_PAD_PTE26__DCU0_B5,
 228                 VF610_PAD_PTE27__DCU0_B6,
 229                 VF610_PAD_PTE28__DCU0_B7,
 230         };
 231
 232         imx_iomux_v3_setup_multiple_pads(dcu0_pads, ARRAY_SIZE(dcu0_pads));
 233 }
 234
 235 static void setup_tcon(void)
 236 {
 237         setbits_le32(TCON0_BASE_ADDR, (1 << 29));
 238 }
 239 #endif
 240
 241 static inline int is_colibri_vf61(void)
 242 {
 243         struct mscm *mscm = (struct mscm *)MSCM_BASE_ADDR;
 244
 245         /*
 246          * Detect board type by Level 2 Cache: VF50 don't have any
 247          * Level 2 Cache.
 248          */
 249         return !!mscm->cpxcfg1;
 250 }
 251
 252 static void clock_init(void)
 253 {
 254         struct ccm_reg *ccm = (struct ccm_reg *)CCM_BASE_ADDR;
 255         struct anadig_reg *anadig = (struct anadig_reg *)ANADIG_BASE_ADDR;
 256         u32 pfd_clk_sel, ddr_clk_sel;
 257
 258         clrsetbits_le32(&ccm->ccgr0, CCM_REG_CTRL_MASK,
 259                         CCM_CCGR0_UART0_CTRL_MASK);
 260 #ifdef CONFIG_FSL_DSPI
 261         setbits_le32(&ccm->ccgr0, CCM_CCGR0_DSPI1_CTRL_MASK);
 262 #endif
 263         clrsetbits_le32(&ccm->ccgr1, CCM_REG_CTRL_MASK,
 264                         CCM_CCGR1_PIT_CTRL_MASK | CCM_CCGR1_WDOGA5_CTRL_MASK);
 265         clrsetbits_le32(&ccm->ccgr2, CCM_REG_CTRL_MASK,
 266                         CCM_CCGR2_IOMUXC_CTRL_MASK | CCM_CCGR2_PORTA_CTRL_MASK |
 267                         CCM_CCGR2_PORTB_CTRL_MASK | CCM_CCGR2_PORTC_CTRL_MASK |
 268                         CCM_CCGR2_PORTD_CTRL_MASK | CCM_CCGR2_PORTE_CTRL_MASK);
 269         clrsetbits_le32(&ccm->ccgr3, CCM_REG_CTRL_MASK,
 270                         CCM_CCGR3_ANADIG_CTRL_MASK | CCM_CCGR3_SCSC_CTRL_MASK);
 271         clrsetbits_le32(&ccm->ccgr4, CCM_REG_CTRL_MASK,
 272                         CCM_CCGR4_WKUP_CTRL_MASK | CCM_CCGR4_CCM_CTRL_MASK |
 273                         CCM_CCGR4_GPC_CTRL_MASK);
 274         clrsetbits_le32(&ccm->ccgr6, CCM_REG_CTRL_MASK,
 275                         CCM_CCGR6_OCOTP_CTRL_MASK | CCM_CCGR6_DDRMC_CTRL_MASK);
 276         clrsetbits_le32(&ccm->ccgr7, CCM_REG_CTRL_MASK,
 277                         CCM_CCGR7_SDHC1_CTRL_MASK);
 278         clrsetbits_le32(&ccm->ccgr9, CCM_REG_CTRL_MASK,
 279                         CCM_CCGR9_FEC0_CTRL_MASK | CCM_CCGR9_FEC1_CTRL_MASK);
 280         clrsetbits_le32(&ccm->ccgr10, CCM_REG_CTRL_MASK,
 281                         CCM_CCGR10_NFC_CTRL_MASK);
 282
 283 #ifdef CONFIG_USB_EHCI_VF
 284         setbits_le32(&ccm->ccgr1, CCM_CCGR1_USBC0_CTRL_MASK);
 285         setbits_le32(&ccm->ccgr7, CCM_CCGR7_USBC1_CTRL_MASK);
 286
 287         clrsetbits_le32(&anadig->pll3_ctrl, ANADIG_PLL3_CTRL_BYPASS |
 288                         ANADIG_PLL3_CTRL_POWERDOWN |
 289                         ANADIG_PLL3_CTRL_DIV_SELECT,
 290                         ANADIG_PLL3_CTRL_ENABLE);
 291         clrsetbits_le32(&anadig->pll7_ctrl, ANADIG_PLL7_CTRL_BYPASS |
 292                         ANADIG_PLL7_CTRL_POWERDOWN |
 293                         ANADIG_PLL7_CTRL_DIV_SELECT,
 294                         ANADIG_PLL7_CTRL_ENABLE);
 295 #endif
 296
 297         clrsetbits_le32(&anadig->pll5_ctrl, ANADIG_PLL5_CTRL_BYPASS |
 298                         ANADIG_PLL5_CTRL_POWERDOWN, ANADIG_PLL5_CTRL_ENABLE |
 299                         ANADIG_PLL5_CTRL_DIV_SELECT);
 300
 301         if (is_colibri_vf61()) {
 302                 clrsetbits_le32(&anadig->pll2_ctrl, ANADIG_PLL5_CTRL_BYPASS |
 303                                 ANADIG_PLL2_CTRL_POWERDOWN,
 304                                 ANADIG_PLL2_CTRL_ENABLE |
 305                                 ANADIG_PLL2_CTRL_DIV_SELECT);
 306         }
 307
 308         clrsetbits_le32(&anadig->pll1_ctrl, ANADIG_PLL1_CTRL_POWERDOWN,
 309                         ANADIG_PLL1_CTRL_ENABLE | ANADIG_PLL1_CTRL_DIV_SELECT);
 310
 311         clrsetbits_le32(&ccm->ccr, CCM_CCR_OSCNT_MASK,
 312                         CCM_CCR_FIRC_EN | CCM_CCR_OSCNT(5));
 313
 314         /* See "Typical PLL Configuration" */
 315         if (is_colibri_vf61()) {
 316                 pfd_clk_sel = CCM_CCSR_PLL1_PFD_CLK_SEL(1);
 317                 ddr_clk_sel = CCM_CCSR_DDRC_CLK_SEL(0);
 318         } else {
 319                 pfd_clk_sel = CCM_CCSR_PLL1_PFD_CLK_SEL(3);
 320                 ddr_clk_sel = CCM_CCSR_DDRC_CLK_SEL(1);
 321         }
 322
 323         clrsetbits_le32(&ccm->ccsr, CCM_REG_CTRL_MASK, pfd_clk_sel |
 324                         CCM_CCSR_PLL2_PFD4_EN | CCM_CCSR_PLL2_PFD3_EN |
 325                         CCM_CCSR_PLL2_PFD2_EN | CCM_CCSR_PLL2_PFD1_EN |
 326                         CCM_CCSR_PLL1_PFD4_EN | CCM_CCSR_PLL1_PFD3_EN |
 327                         CCM_CCSR_PLL1_PFD2_EN | CCM_CCSR_PLL1_PFD1_EN |
 328                         ddr_clk_sel | CCM_CCSR_FAST_CLK_SEL(1) |
 329                         CCM_CCSR_SYS_CLK_SEL(4));
 330
 331         clrsetbits_le32(&ccm->cacrr, CCM_REG_CTRL_MASK,
 332                         CCM_CACRR_IPG_CLK_DIV(1) | CCM_CACRR_BUS_CLK_DIV(2) |
 333                         CCM_CACRR_ARM_CLK_DIV(0));
 334         clrsetbits_le32(&ccm->cscmr1, CCM_REG_CTRL_MASK,
 335                         CCM_CSCMR1_ESDHC1_CLK_SEL(3) |
 336                         CCM_CSCMR1_NFC_CLK_SEL(0));
 337         clrsetbits_le32(&ccm->cscdr1, CCM_REG_CTRL_MASK,
 338                         CCM_CSCDR1_RMII_CLK_EN);
 339         clrsetbits_le32(&ccm->cscdr2, CCM_REG_CTRL_MASK,
 340                         CCM_CSCDR2_ESDHC1_EN | CCM_CSCDR2_ESDHC1_CLK_DIV(0) |
 341                         CCM_CSCDR2_NFC_EN);
 342         clrsetbits_le32(&ccm->cscdr3, CCM_REG_CTRL_MASK,
 343                         CCM_CSCDR3_NFC_PRE_DIV(3));
 344         clrsetbits_le32(&ccm->cscmr2, CCM_REG_CTRL_MASK,
 345                         CCM_CSCMR2_RMII_CLK_SEL(2));
 346
 347 #ifdef CONFIG_VIDEO_FSL_DCU_FB
 348                 setbits_le32(&ccm->ccgr1, CCM_CCGR1_TCON0_CTRL_MASK);
 349                 setbits_le32(&ccm->ccgr3, CCM_CCGR3_DCU0_CTRL_MASK);
 350 #endif
 351 }
 352
 353 static void mscm_init(void)
 354 {
 355         struct mscm_ir *mscmir = (struct mscm_ir *)MSCM_IR_BASE_ADDR;
 356         int i;
 357
 358         for (i = 0; i < MSCM_IRSPRC_NUM; i++)
 359                 writew(MSCM_IRSPRC_CP0_EN, &mscmir->irsprc[i]);
 360 }
 361
 362 int board_early_init_f(void)
 363 {
 364         clock_init();
 365         mscm_init();
 366
 367 #ifdef CONFIG_VYBRID_GPIO
 368         setup_iomux_gpio();
 369 #endif
 370
 371 #ifdef CONFIG_VIDEO_FSL_DCU_FB
 372         setup_tcon();
 373         setup_iomux_fsl_dcu();
 374 #endif
 375
 376         return 0;
 377 }
 378
 379 #ifdef CONFIG_BOARD_LATE_INIT
 380 int board_late_init(void)
 381 {
 382         struct src *src = (struct src *)SRC_BASE_ADDR;
 383
 384         if (((src->sbmr2 & SRC_SBMR2_BMOD_MASK) >> SRC_SBMR2_BMOD_SHIFT)
 385                         == SRC_SBMR2_BMOD_SERIAL) {
 386                 printf("Serial Downloader recovery mode, disable autoboot\n");
 387                 env_set("bootdelay", "-1");
 388         }
 389
 390         return 0;
 391 }
 392 #endif /* CONFIG_BOARD_LATE_INIT */
 393
 394 int board_init(void)
 395 {
 396         struct scsc_reg *scsc = (struct scsc_reg *)SCSC_BASE_ADDR;
 397
 398         /* address of boot parameters */
 399         gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
 400
 401         /*
 402          * Enable external 32K Oscillator
 403          *
 404          * The internal clock experiences significant drift
 405          * so we must use the external oscillator in order
 406          * to maintain correct time in the hwclock
 407          */
 408         setbits_le32(&scsc->sosc_ctr, SCSC_SOSC_CTR_SOSC_EN);
 409
 410         return 0;
 411 }
 412
 413 int checkboard(void)
 414 {
 415         if (is_colibri_vf61())
 416                 puts("Model: Toradex Colibri VF61\n");
 417         else
 418                 puts("Model: Toradex Colibri VF50\n");
 419
 420         return 0;
 421 }
 422
 423 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
 424 int ft_board_setup(void *blob, bd_t *bd)
 425 {
 426         int ret = 0;
 427 #ifdef CONFIG_FDT_FIXUP_PARTITIONS
 428         static const struct node_info nodes[] = {
 429                 { "fsl,vf610-nfc", MTD_DEV_TYPE_NAND, }, /* NAND flash */
 430         };
 431
 432         /* Update partition nodes using info from mtdparts env var */
 433         puts("   Updating MTD partitions...\n");
 434         fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));
 435 #endif
 436 #ifdef CONFIG_VIDEO_FSL_DCU_FB
 437         ret = fsl_dcu_fixedfb_setup(blob);
 438         if (ret)
 439                 return ret;
 440 #endif
 441
 442         return ft_common_board_setup(blob, bd);
 443 }
 444 #endif
 445
 446 /*
 447  * Backlight off before OS handover
 448  */
 449 void board_preboot_os(void)
 450 {
 451         gpio_request(PTC0_GPIO_45, "BL_ON");
 452         gpio_direction_output(PTC0_GPIO_45, 0);
 453 }