board/toradex/colibri_vf/colibri_vf.c

   1 /*
   2  * Copyright 2015 Toradex, Inc.
   3  *
   4  * Based on vf610twr.c:
   5  * Copyright 2013 Freescale Semiconductor, Inc.
   6  *
   7  * SPDX-License-Identifier:     GPL-2.0+
   8  */
   9
  10 #include <common.h>
  11 #include <asm/io.h>
  12 #include <asm/arch/imx-regs.h>
  13 #include <asm/arch/iomux-vf610.h>
  14 #include <asm/arch/ddrmc-vf610.h>
  15 #include <asm/arch/crm_regs.h>
  16 #include <asm/arch/clock.h>
  17 #include <mmc.h>
  18 #include <fsl_esdhc.h>
  19 #include <miiphy.h>
  20 #include <netdev.h>
  21 #include <i2c.h>
  22 #include <g_dnl.h>
  23
  24 DECLARE_GLOBAL_DATA_PTR;
  25
  26 #define UART_PAD_CTRL   (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
  27                         PAD_CTL_DSE_25ohm | PAD_CTL_OBE_IBE_ENABLE)
  28
  29 #define ESDHC_PAD_CTRL  (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_HIGH | \
  30                         PAD_CTL_DSE_20ohm | PAD_CTL_OBE_IBE_ENABLE)
  31
  32 #define ENET_PAD_CTRL   (PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_HIGH | \
  33                         PAD_CTL_DSE_50ohm | PAD_CTL_OBE_IBE_ENABLE)
  34
  35 int dram_init(void)
  36 {
  37         static const struct ddr3_jedec_timings timings = {
  38                 .tinit           = 5,
  39                 .trst_pwron      = 80000,
  40                 .cke_inactive    = 200000,
  41                 .wrlat           = 5,
  42                 .caslat_lin      = 12,
  43                 .trc             = 21,
  44                 .trrd            = 4,
  45                 .tccd            = 4,
  46                 .tfaw            = 20,
  47                 .trp             = 6,
  48                 .twtr            = 4,
  49                 .tras_min        = 15,
  50                 .tmrd            = 4,
  51                 .trtp            = 4,
  52                 .tras_max        = 28080,
  53                 .tmod            = 12,
  54                 .tckesr          = 4,
  55                 .tcke            = 3,
  56                 .trcd_int        = 6,
  57                 .tdal            = 12,
  58                 .tdll            = 512,
  59                 .trp_ab          = 6,
  60                 .tref            = 3120,
  61                 .trfc            = 64,
  62                 .tpdex           = 3,
  63                 .txpdll          = 10,
  64                 .txsnr           = 48,
  65                 .txsr            = 468,
  66                 .cksrx           = 5,
  67                 .cksre           = 5,
  68                 .zqcl            = 256,
  69                 .zqinit          = 512,
  70                 .zqcs            = 64,
  71                 .ref_per_zq      = 64,
  72                 .aprebit         = 10,
  73                 .wlmrd           = 40,
  74                 .wldqsen         = 25,
  75         };
  76
  77         ddrmc_setup_iomux();
  78
  79         ddrmc_ctrl_init_ddr3(&timings, NULL, 1, 2);
  80         gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
  81
  82         return 0;
  83 }
  84
  85 static void setup_iomux_uart(void)
  86 {
  87         static const iomux_v3_cfg_t uart_pads[] = {
  88                 NEW_PAD_CTRL(VF610_PAD_PTB4__UART1_TX, UART_PAD_CTRL),
  89                 NEW_PAD_CTRL(VF610_PAD_PTB5__UART1_RX, UART_PAD_CTRL),
  90                 NEW_PAD_CTRL(VF610_PAD_PTB10__UART0_TX, UART_PAD_CTRL),
  91                 NEW_PAD_CTRL(VF610_PAD_PTB11__UART0_RX, UART_PAD_CTRL),
  92         };
  93
  94         imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));
  95 }
  96
  97 static void setup_iomux_enet(void)
  98 {
  99         static const iomux_v3_cfg_t enet0_pads[] = {
 100                 NEW_PAD_CTRL(VF610_PAD_PTA6__RMII0_CLKOUT, ENET_PAD_CTRL),
 101                 NEW_PAD_CTRL(VF610_PAD_PTC10__RMII1_MDIO, ENET_PAD_CTRL),
 102                 NEW_PAD_CTRL(VF610_PAD_PTC9__RMII1_MDC, ENET_PAD_CTRL),
 103                 NEW_PAD_CTRL(VF610_PAD_PTC11__RMII1_CRS_DV, ENET_PAD_CTRL),
 104                 NEW_PAD_CTRL(VF610_PAD_PTC12__RMII1_RD1, ENET_PAD_CTRL),
 105                 NEW_PAD_CTRL(VF610_PAD_PTC13__RMII1_RD0, ENET_PAD_CTRL),
 106                 NEW_PAD_CTRL(VF610_PAD_PTC14__RMII1_RXER, ENET_PAD_CTRL),
 107                 NEW_PAD_CTRL(VF610_PAD_PTC15__RMII1_TD1, ENET_PAD_CTRL),
 108                 NEW_PAD_CTRL(VF610_PAD_PTC16__RMII1_TD0, ENET_PAD_CTRL),
 109                 NEW_PAD_CTRL(VF610_PAD_PTC17__RMII1_TXEN, ENET_PAD_CTRL),
 110         };
 111
 112         imx_iomux_v3_setup_multiple_pads(enet0_pads, ARRAY_SIZE(enet0_pads));
 113 }
 114
 115 static void setup_iomux_i2c(void)
 116 {
 117         static const iomux_v3_cfg_t i2c0_pads[] = {
 118                 VF610_PAD_PTB14__I2C0_SCL,
 119                 VF610_PAD_PTB15__I2C0_SDA,
 120         };
 121
 122         imx_iomux_v3_setup_multiple_pads(i2c0_pads, ARRAY_SIZE(i2c0_pads));
 123 }
 124
 125 #ifdef CONFIG_NAND_VF610_NFC
 126 static void setup_iomux_nfc(void)
 127 {
 128         static const iomux_v3_cfg_t nfc_pads[] = {
 129                 VF610_PAD_PTD23__NF_IO7,
 130                 VF610_PAD_PTD22__NF_IO6,
 131                 VF610_PAD_PTD21__NF_IO5,
 132                 VF610_PAD_PTD20__NF_IO4,
 133                 VF610_PAD_PTD19__NF_IO3,
 134                 VF610_PAD_PTD18__NF_IO2,
 135                 VF610_PAD_PTD17__NF_IO1,
 136                 VF610_PAD_PTD16__NF_IO0,
 137                 VF610_PAD_PTB24__NF_WE_B,
 138                 VF610_PAD_PTB25__NF_CE0_B,
 139                 VF610_PAD_PTB27__NF_RE_B,
 140                 VF610_PAD_PTC26__NF_RB_B,
 141                 VF610_PAD_PTC27__NF_ALE,
 142                 VF610_PAD_PTC28__NF_CLE
 143         };
 144
 145         imx_iomux_v3_setup_multiple_pads(nfc_pads, ARRAY_SIZE(nfc_pads));
 146 }
 147 #endif
 148
 149 #ifdef CONFIG_FSL_ESDHC
 150 struct fsl_esdhc_cfg esdhc_cfg[1] = {
 151         {ESDHC1_BASE_ADDR},
 152 };
 153
 154 int board_mmc_getcd(struct mmc *mmc)
 155 {
 156         /* eSDHC1 is always present */
 157         return 1;
 158 }
 159
 160 int board_mmc_init(bd_t *bis)
 161 {
 162         static const iomux_v3_cfg_t esdhc1_pads[] = {
 163                 NEW_PAD_CTRL(VF610_PAD_PTA24__ESDHC1_CLK, ESDHC_PAD_CTRL),
 164                 NEW_PAD_CTRL(VF610_PAD_PTA25__ESDHC1_CMD, ESDHC_PAD_CTRL),
 165                 NEW_PAD_CTRL(VF610_PAD_PTA26__ESDHC1_DAT0, ESDHC_PAD_CTRL),
 166                 NEW_PAD_CTRL(VF610_PAD_PTA27__ESDHC1_DAT1, ESDHC_PAD_CTRL),
 167                 NEW_PAD_CTRL(VF610_PAD_PTA28__ESDHC1_DAT2, ESDHC_PAD_CTRL),
 168                 NEW_PAD_CTRL(VF610_PAD_PTA29__ESDHC1_DAT3, ESDHC_PAD_CTRL),
 169         };
 170
 171         esdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
 172
 173         imx_iomux_v3_setup_multiple_pads(
 174                 esdhc1_pads, ARRAY_SIZE(esdhc1_pads));
 175
 176         return fsl_esdhc_initialize(bis, &esdhc_cfg[0]);
 177 }
 178 #endif
 179
 180 static inline int is_colibri_vf61(void)
 181 {
 182         struct mscm *mscm = (struct mscm *)MSCM_BASE_ADDR;
 183
 184         /*
 185          * Detect board type by Level 2 Cache: VF50 don't have any
 186          * Level 2 Cache.
 187          */
 188         return !!mscm->cpxcfg1;
 189 }
 190
 191 static void clock_init(void)
 192 {
 193         struct ccm_reg *ccm = (struct ccm_reg *)CCM_BASE_ADDR;
 194         struct anadig_reg *anadig = (struct anadig_reg *)ANADIG_BASE_ADDR;
 195         u32 pfd_clk_sel, ddr_clk_sel;
 196
 197         clrsetbits_le32(&ccm->ccgr0, CCM_REG_CTRL_MASK,
 198                         CCM_CCGR0_UART0_CTRL_MASK);
 199         clrsetbits_le32(&ccm->ccgr1, CCM_REG_CTRL_MASK,
 200                         CCM_CCGR1_PIT_CTRL_MASK | CCM_CCGR1_WDOGA5_CTRL_MASK);
 201         clrsetbits_le32(&ccm->ccgr2, CCM_REG_CTRL_MASK,
 202                         CCM_CCGR2_IOMUXC_CTRL_MASK | CCM_CCGR2_PORTA_CTRL_MASK |
 203                         CCM_CCGR2_PORTB_CTRL_MASK | CCM_CCGR2_PORTC_CTRL_MASK |
 204                         CCM_CCGR2_PORTD_CTRL_MASK | CCM_CCGR2_PORTE_CTRL_MASK);
 205         clrsetbits_le32(&ccm->ccgr3, CCM_REG_CTRL_MASK,
 206                         CCM_CCGR3_ANADIG_CTRL_MASK | CCM_CCGR3_SCSC_CTRL_MASK);
 207         clrsetbits_le32(&ccm->ccgr4, CCM_REG_CTRL_MASK,
 208                         CCM_CCGR4_WKUP_CTRL_MASK | CCM_CCGR4_CCM_CTRL_MASK |
 209                         CCM_CCGR4_GPC_CTRL_MASK | CCM_CCGR4_I2C0_CTRL_MASK);
 210         clrsetbits_le32(&ccm->ccgr6, CCM_REG_CTRL_MASK,
 211                         CCM_CCGR6_OCOTP_CTRL_MASK | CCM_CCGR6_DDRMC_CTRL_MASK);
 212         clrsetbits_le32(&ccm->ccgr7, CCM_REG_CTRL_MASK,
 213                         CCM_CCGR7_SDHC1_CTRL_MASK);
 214         clrsetbits_le32(&ccm->ccgr9, CCM_REG_CTRL_MASK,
 215                         CCM_CCGR9_FEC0_CTRL_MASK | CCM_CCGR9_FEC1_CTRL_MASK);
 216         clrsetbits_le32(&ccm->ccgr10, CCM_REG_CTRL_MASK,
 217                         CCM_CCGR10_NFC_CTRL_MASK);
 218
 219         clrsetbits_le32(&anadig->pll5_ctrl, ANADIG_PLL5_CTRL_BYPASS |
 220                         ANADIG_PLL5_CTRL_POWERDOWN, ANADIG_PLL5_CTRL_ENABLE |
 221                         ANADIG_PLL5_CTRL_DIV_SELECT);
 222
 223         if (is_colibri_vf61()) {
 224                 clrsetbits_le32(&anadig->pll2_ctrl, ANADIG_PLL5_CTRL_BYPASS |
 225                                 ANADIG_PLL2_CTRL_POWERDOWN,
 226                                 ANADIG_PLL2_CTRL_ENABLE |
 227                                 ANADIG_PLL2_CTRL_DIV_SELECT);
 228         }
 229
 230         clrsetbits_le32(&anadig->pll1_ctrl, ANADIG_PLL1_CTRL_POWERDOWN,
 231                         ANADIG_PLL1_CTRL_ENABLE | ANADIG_PLL1_CTRL_DIV_SELECT);
 232
 233         clrsetbits_le32(&ccm->ccr, CCM_CCR_OSCNT_MASK,
 234                         CCM_CCR_FIRC_EN | CCM_CCR_OSCNT(5));
 235
 236         /* See "Typical PLL Configuration" */
 237         if (is_colibri_vf61()) {
 238                 pfd_clk_sel = CCM_CCSR_PLL1_PFD_CLK_SEL(1);
 239                 ddr_clk_sel = CCM_CCSR_DDRC_CLK_SEL(0);
 240         } else {
 241                 pfd_clk_sel = CCM_CCSR_PLL1_PFD_CLK_SEL(3);
 242                 ddr_clk_sel = CCM_CCSR_DDRC_CLK_SEL(1);
 243         }
 244
 245         clrsetbits_le32(&ccm->ccsr, CCM_REG_CTRL_MASK, pfd_clk_sel |
 246                         CCM_CCSR_PLL2_PFD4_EN | CCM_CCSR_PLL2_PFD3_EN |
 247                         CCM_CCSR_PLL2_PFD2_EN | CCM_CCSR_PLL2_PFD1_EN |
 248                         CCM_CCSR_PLL1_PFD4_EN | CCM_CCSR_PLL1_PFD3_EN |
 249                         CCM_CCSR_PLL1_PFD2_EN | CCM_CCSR_PLL1_PFD1_EN |
 250                         ddr_clk_sel | CCM_CCSR_FAST_CLK_SEL(1) |
 251                         CCM_CCSR_SYS_CLK_SEL(4));
 252
 253         clrsetbits_le32(&ccm->cacrr, CCM_REG_CTRL_MASK,
 254                         CCM_CACRR_IPG_CLK_DIV(1) | CCM_CACRR_BUS_CLK_DIV(2) |
 255                         CCM_CACRR_ARM_CLK_DIV(0));
 256         clrsetbits_le32(&ccm->cscmr1, CCM_REG_CTRL_MASK,
 257                         CCM_CSCMR1_ESDHC1_CLK_SEL(3) |
 258                         CCM_CSCMR1_NFC_CLK_SEL(0));
 259         clrsetbits_le32(&ccm->cscdr1, CCM_REG_CTRL_MASK,
 260                         CCM_CSCDR1_RMII_CLK_EN);
 261         clrsetbits_le32(&ccm->cscdr2, CCM_REG_CTRL_MASK,
 262                         CCM_CSCDR2_ESDHC1_EN | CCM_CSCDR2_ESDHC1_CLK_DIV(0) |
 263                         CCM_CSCDR2_NFC_EN);
 264         clrsetbits_le32(&ccm->cscdr3, CCM_REG_CTRL_MASK,
 265                         CCM_CSCDR3_NFC_PRE_DIV(5));
 266         clrsetbits_le32(&ccm->cscmr2, CCM_REG_CTRL_MASK,
 267                         CCM_CSCMR2_RMII_CLK_SEL(2));
 268 }
 269
 270 static void mscm_init(void)
 271 {
 272         struct mscm_ir *mscmir = (struct mscm_ir *)MSCM_IR_BASE_ADDR;
 273         int i;
 274
 275         for (i = 0; i < MSCM_IRSPRC_NUM; i++)
 276                 writew(MSCM_IRSPRC_CP0_EN, &mscmir->irsprc[i]);
 277 }
 278
 279 int board_phy_config(struct phy_device *phydev)
 280 {
 281         if (phydev->drv->config)
 282                 phydev->drv->config(phydev);
 283
 284         return 0;
 285 }
 286
 287 int board_early_init_f(void)
 288 {
 289         clock_init();
 290         mscm_init();
 291
 292         setup_iomux_uart();
 293         setup_iomux_enet();
 294         setup_iomux_i2c();
 295 #ifdef CONFIG_NAND_VF610_NFC
 296         setup_iomux_nfc();
 297 #endif
 298
 299         return 0;
 300 }
 301
 302 #ifdef CONFIG_BOARD_LATE_INIT
 303 int board_late_init(void)
 304 {
 305         struct src *src = (struct src *)SRC_BASE_ADDR;
 306
 307         /* Default memory arguments */
 308         if (!getenv("memargs")) {
 309                 switch (gd->ram_size) {
 310                 case 0x08000000:
 311                         /* 128 MB */
 312                         setenv("memargs", "mem=128M");
 313                         break;
 314                 case 0x10000000:
 315                         /* 256 MB */
 316                         setenv("memargs", "mem=256M");
 317                         break;
 318                 default:
 319                         printf("Failed detecting RAM size.\n");
 320                 }
 321         }
 322
 323         if (((src->sbmr2 & SRC_SBMR2_BMOD_MASK) >> SRC_SBMR2_BMOD_SHIFT)
 324                         == SRC_SBMR2_BMOD_SERIAL) {
 325                 printf("Serial Downloader recovery mode, disable autoboot\n");
 326                 setenv("bootdelay", "-1");
 327         }
 328
 329         return 0;
 330 }
 331 #endif /* CONFIG_BOARD_LATE_INIT */
 332
 333 int board_init(void)
 334 {
 335         struct scsc_reg *scsc = (struct scsc_reg *)SCSC_BASE_ADDR;
 336
 337         /* address of boot parameters */
 338         gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
 339
 340         /*
 341          * Enable external 32K Oscillator
 342          *
 343          * The internal clock experiences significant drift
 344          * so we must use the external oscillator in order
 345          * to maintain correct time in the hwclock
 346          */
 347
 348         setbits_le32(&scsc->sosc_ctr, SCSC_SOSC_CTR_SOSC_EN);
 349
 350         return 0;
 351 }
 352
 353 int checkboard(void)
 354 {
 355         if (is_colibri_vf61())
 356                 puts("Board: Colibri VF61\n");
 357         else
 358                 puts("Board: Colibri VF50\n");
 359
 360         return 0;
 361 }