board/siemens/pxm2/board.c

   1 /*
   2  * Board functions for TI AM335X based pxm2 board
   3  * (C) Copyright 2013 Siemens Schweiz AG
   4  * (C) Heiko Schocher, DENX Software Engineering, hs@denx.de.
   5  *
   6  * Based on:
   7  * u-boot:/board/ti/am335x/board.c
   8  *
   9  * Board functions for TI AM335X based boards
  10  *
  11  * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
  12  *
  13  * SPDX-License-Identifier:     GPL-2.0+
  14  */
  15
  16 #include <common.h>
  17 #include <errno.h>
  18 #include <spl.h>
  19 #include <asm/arch/cpu.h>
  20 #include <asm/arch/hardware.h>
  21 #include <asm/arch/omap.h>
  22 #include <asm/arch/ddr_defs.h>
  23 #include <asm/arch/clock.h>
  24 #include <asm/arch/gpio.h>
  25 #include <asm/arch/mmc_host_def.h>
  26 #include <asm/arch/sys_proto.h>
  27 #include "../../../drivers/video/da8xx-fb.h"
  28 #include <asm/io.h>
  29 #include <asm/emif.h>
  30 #include <asm/gpio.h>
  31 #include <i2c.h>
  32 #include <miiphy.h>
  33 #include <cpsw.h>
  34 #include <watchdog.h>
  35 #include "board.h"
  36 #include "../common/factoryset.h"
  37 #include "pmic.h"
  38 #include <nand.h>
  39 #include <bmp_layout.h>
  40
  41 DECLARE_GLOBAL_DATA_PTR;
  42
  43 #ifdef CONFIG_SPL_BUILD
  44 static void board_init_ddr(void)
  45 {
  46 struct emif_regs pxm2_ddr3_emif_reg_data = {
  47         .sdram_config = 0x41805332,
  48         .sdram_tim1 = 0x666b3c9,
  49         .sdram_tim2 = 0x243631ca,
  50         .sdram_tim3 = 0x33f,
  51         .emif_ddr_phy_ctlr_1 = 0x100005,
  52         .zq_config = 0,
  53         .ref_ctrl = 0x81a,
  54 };
  55
  56 struct ddr_data pxm2_ddr3_data = {
  57         .datardsratio0 = 0x81204812,
  58         .datawdsratio0 = 0,
  59         .datafwsratio0 = 0x8020080,
  60         .datawrsratio0 = 0x4010040,
  61 };
  62
  63 struct cmd_control pxm2_ddr3_cmd_ctrl_data = {
  64         .cmd0csratio = 0x80,
  65         .cmd0iclkout = 0,
  66         .cmd1csratio = 0x80,
  67         .cmd1iclkout = 0,
  68         .cmd2csratio = 0x80,
  69         .cmd2iclkout = 0,
  70 };
  71
  72 const struct ctrl_ioregs ioregs = {
  73         .cm0ioctl               = DDR_IOCTRL_VAL,
  74         .cm1ioctl               = DDR_IOCTRL_VAL,
  75         .cm2ioctl               = DDR_IOCTRL_VAL,
  76         .dt0ioctl               = DDR_IOCTRL_VAL,
  77         .dt1ioctl               = DDR_IOCTRL_VAL,
  78 };
  79
  80         config_ddr(DDR_PLL_FREQ, &ioregs, &pxm2_ddr3_data,
  81                    &pxm2_ddr3_cmd_ctrl_data, &pxm2_ddr3_emif_reg_data, 0);
  82 }
  83
  84 /*
  85  * voltage switching for MPU frequency switching.
  86  * @module = mpu - 0, core - 1
  87  * @vddx_op_vol_sel = vdd voltage to set
  88  */
  89
  90 #define MPU     0
  91 #define CORE    1
  92
  93 int voltage_update(unsigned int module, unsigned char vddx_op_vol_sel)
  94 {
  95         uchar buf[4];
  96         unsigned int reg_offset;
  97
  98         if (module == MPU)
  99                 reg_offset = PMIC_VDD1_OP_REG;
 100         else
 101                 reg_offset = PMIC_VDD2_OP_REG;
 102
 103         /* Select VDDx OP   */
 104         if (i2c_read(PMIC_CTRL_I2C_ADDR, reg_offset, 1, buf, 1))
 105                 return 1;
 106
 107         buf[0] &= ~PMIC_OP_REG_CMD_MASK;
 108
 109         if (i2c_write(PMIC_CTRL_I2C_ADDR, reg_offset, 1, buf, 1))
 110                 return 1;
 111
 112         /* Configure VDDx OP  Voltage */
 113         if (i2c_read(PMIC_CTRL_I2C_ADDR, reg_offset, 1, buf, 1))
 114                 return 1;
 115
 116         buf[0] &= ~PMIC_OP_REG_SEL_MASK;
 117         buf[0] |= vddx_op_vol_sel;
 118
 119         if (i2c_write(PMIC_CTRL_I2C_ADDR, reg_offset, 1, buf, 1))
 120                 return 1;
 121
 122         if (i2c_read(PMIC_CTRL_I2C_ADDR, reg_offset, 1, buf, 1))
 123                 return 1;
 124
 125         if ((buf[0] & PMIC_OP_REG_SEL_MASK) != vddx_op_vol_sel)
 126                 return 1;
 127
 128         return 0;
 129 }
 130
 131 #define OSC     (V_OSCK/1000000)
 132
 133 const struct dpll_params dpll_mpu_pxm2 = {
 134                 720, OSC-1, 1, -1, -1, -1, -1};
 135
 136 void spl_siemens_board_init(void)
 137 {
 138         uchar buf[4];
 139         /*
 140          * pxm2 PMIC code.  All boards currently want an MPU voltage
 141          * of 1.2625V and CORE voltage of 1.1375V to operate at
 142          * 720MHz.
 143          */
 144         if (i2c_probe(PMIC_CTRL_I2C_ADDR))
 145                 return;
 146
 147         /* VDD1/2 voltage selection register access by control i/f */
 148         if (i2c_read(PMIC_CTRL_I2C_ADDR, PMIC_DEVCTRL_REG, 1, buf, 1))
 149                 return;
 150
 151         buf[0] |= PMIC_DEVCTRL_REG_SR_CTL_I2C_SEL_CTL_I2C;
 152
 153         if (i2c_write(PMIC_CTRL_I2C_ADDR, PMIC_DEVCTRL_REG, 1, buf, 1))
 154                 return;
 155
 156         /* Frequency switching for OPP 120 */
 157         if (voltage_update(MPU, PMIC_OP_REG_SEL_1_2_6) ||
 158             voltage_update(CORE, PMIC_OP_REG_SEL_1_1_3)) {
 159                 printf("voltage update failed\n");
 160         }
 161 }
 162 #endif /* if def CONFIG_SPL_BUILD */
 163
 164 int read_eeprom(void)
 165 {
 166         /* nothing ToDo here for this board */
 167
 168         return 0;
 169 }
 170
 171 #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
 172         (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
 173 static void cpsw_control(int enabled)
 174 {
 175         /* VTP can be added here */
 176
 177         return;
 178 }
 179
 180 static struct cpsw_slave_data cpsw_slaves[] = {
 181         {
 182                 .slave_reg_ofs  = 0x208,
 183                 .sliver_reg_ofs = 0xd80,
 184                 .phy_addr       = 0,
 185                 .phy_if         = PHY_INTERFACE_MODE_RMII,
 186         },
 187         {
 188                 .slave_reg_ofs  = 0x308,
 189                 .sliver_reg_ofs = 0xdc0,
 190                 .phy_addr       = 1,
 191                 .phy_if         = PHY_INTERFACE_MODE_RMII,
 192         },
 193 };
 194
 195 static struct cpsw_platform_data cpsw_data = {
 196         .mdio_base              = CPSW_MDIO_BASE,
 197         .cpsw_base              = CPSW_BASE,
 198         .mdio_div               = 0xff,
 199         .channels               = 4,
 200         .cpdma_reg_ofs          = 0x800,
 201         .slaves                 = 1,
 202         .slave_data             = cpsw_slaves,
 203         .ale_reg_ofs            = 0xd00,
 204         .ale_entries            = 1024,
 205         .host_port_reg_ofs      = 0x108,
 206         .hw_stats_reg_ofs       = 0x900,
 207         .bd_ram_ofs             = 0x2000,
 208         .mac_control            = (1 << 5),
 209         .control                = cpsw_control,
 210         .host_port_num          = 0,
 211         .version                = CPSW_CTRL_VERSION_2,
 212 };
 213 #endif /* #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) */
 214
 215 #if defined(CONFIG_DRIVER_TI_CPSW) || \
 216         (defined(CONFIG_USB_ETHER) && defined(CONFIG_USB_MUSB_GADGET))
 217 int board_eth_init(bd_t *bis)
 218 {
 219         int n = 0;
 220 #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
 221         (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
 222         struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
 223 #ifdef CONFIG_FACTORYSET
 224         int rv;
 225         if (!is_valid_ethaddr(factory_dat.mac))
 226                 printf("Error: no valid mac address\n");
 227         else
 228                 eth_env_set_enetaddr("ethaddr", factory_dat.mac);
 229 #endif /* #ifdef CONFIG_FACTORYSET */
 230
 231         /* Set rgmii mode and enable rmii clock to be sourced from chip */
 232         writel(RGMII_MODE_ENABLE  | RGMII_INT_DELAY, &cdev->miisel);
 233
 234         rv = cpsw_register(&cpsw_data);
 235         if (rv < 0)
 236                 printf("Error %d registering CPSW switch\n", rv);
 237         else
 238                 n += rv;
 239 #endif
 240         return n;
 241 }
 242 #endif /* #if defined(CONFIG_DRIVER_TI_CPSW) */
 243
 244 #if defined(CONFIG_VIDEO) && !defined(CONFIG_SPL_BUILD)
 245 static struct da8xx_panel lcd_panels[] = {
 246         /* AUO G156XW01 V1 */
 247         [0] = {
 248                 .name = "AUO_G156XW01_V1",
 249                 .width = 1376,
 250                 .height = 768,
 251                 .hfp = 14,
 252                 .hbp = 64,
 253                 .hsw = 56,
 254                 .vfp = 1,
 255                 .vbp = 28,
 256                 .vsw = 3,
 257                 .pxl_clk = 60000000,
 258                 .invert_pxl_clk = 0,
 259         },
 260         /* AUO B101EVN06 V0 */
 261         [1] = {
 262                 .name = "AUO_B101EVN06_V0",
 263                 .width = 1280,
 264                 .height = 800,
 265                 .hfp = 52,
 266                 .hbp = 84,
 267                 .hsw = 36,
 268                 .vfp = 3,
 269                 .vbp = 14,
 270                 .vsw = 6,
 271                 .pxl_clk = 60000000,
 272                 .invert_pxl_clk = 0,
 273         },
 274         /*
 275          * Settings from factoryset
 276          * stored in EEPROM
 277          */
 278         [2] = {
 279                 .name = "factoryset",
 280                 .width = 0,
 281                 .height = 0,
 282                 .hfp = 0,
 283                 .hbp = 0,
 284                 .hsw = 0,
 285                 .vfp = 0,
 286                 .vbp = 0,
 287                 .vsw = 0,
 288                 .pxl_clk = 60000000,
 289                 .invert_pxl_clk = 0,
 290         },
 291 };
 292
 293 static const struct display_panel disp_panel = {
 294         WVGA,
 295         32,
 296         16,
 297         COLOR_ACTIVE,
 298 };
 299
 300 static const struct lcd_ctrl_config lcd_cfg = {
 301         &disp_panel,
 302         .ac_bias                = 255,
 303         .ac_bias_intrpt         = 0,
 304         .dma_burst_sz           = 16,
 305         .bpp                    = 32,
 306         .fdd                    = 0x80,
 307         .tft_alt_mode           = 0,
 308         .stn_565_mode           = 0,
 309         .mono_8bit_mode         = 0,
 310         .invert_line_clock      = 1,
 311         .invert_frm_clock       = 1,
 312         .sync_edge              = 0,
 313         .sync_ctrl              = 1,
 314         .raster_order           = 0,
 315 };
 316
 317 static int set_gpio(int gpio, int state)
 318 {
 319         gpio_request(gpio, "temp");
 320         gpio_direction_output(gpio, state);
 321         gpio_set_value(gpio, state);
 322         gpio_free(gpio);
 323         return 0;
 324 }
 325
 326 static int enable_backlight(void)
 327 {
 328         set_gpio(BOARD_LCD_POWER, 1);
 329         set_gpio(BOARD_BACK_LIGHT, 1);
 330         set_gpio(BOARD_TOUCH_POWER, 1);
 331         return 0;
 332 }
 333
 334 static int enable_pwm(void)
 335 {
 336         struct pwmss_regs *pwmss = (struct pwmss_regs *)PWMSS0_BASE;
 337         struct pwmss_ecap_regs *ecap;
 338         int ticks = PWM_TICKS;
 339         int duty = PWM_DUTY;
 340
 341         ecap = (struct pwmss_ecap_regs *)AM33XX_ECAP0_BASE;
 342         /* enable clock */
 343         setbits_le32(&pwmss->clkconfig, ECAP_CLK_EN);
 344         /* TimeStam Counter register */
 345         writel(0xdb9, &ecap->tsctr);
 346         /* config period */
 347         writel(ticks - 1, &ecap->cap3);
 348         writel(ticks - 1, &ecap->cap1);
 349         setbits_le16(&ecap->ecctl2,
 350                      (ECTRL2_MDSL_ECAP | ECTRL2_SYNCOSEL_MASK | 0xd0));
 351         /* config duty */
 352         writel(duty, &ecap->cap2);
 353         writel(duty, &ecap->cap4);
 354         /* start */
 355         setbits_le16(&ecap->ecctl2, ECTRL2_CTRSTP_FREERUN);
 356         return 0;
 357 }
 358
 359 static struct dpll_regs dpll_lcd_regs = {
 360         .cm_clkmode_dpll = CM_WKUP + 0x98,
 361         .cm_idlest_dpll = CM_WKUP + 0x48,
 362         .cm_clksel_dpll = CM_WKUP + 0x54,
 363 };
 364
 365 /* no console on this board */
 366 int board_cfb_skip(void)
 367 {
 368         return 1;
 369 }
 370
 371 #define PLL_GET_M(v) ((v >> 8) & 0x7ff)
 372 #define PLL_GET_N(v) (v & 0x7f)
 373
 374 static int get_clk(struct dpll_regs *dpll_regs)
 375 {
 376         unsigned int val;
 377         unsigned int m, n;
 378         int f = 0;
 379
 380         val = readl(dpll_regs->cm_clksel_dpll);
 381         m = PLL_GET_M(val);
 382         n = PLL_GET_N(val);
 383         f = (m * V_OSCK) / n;
 384
 385         return f;
 386 };
 387
 388 int clk_get(int clk)
 389 {
 390         return get_clk(&dpll_lcd_regs);
 391 };
 392
 393 static int conf_disp_pll(int m, int n)
 394 {
 395         struct cm_perpll *cmper = (struct cm_perpll *)CM_PER;
 396         struct cm_dpll *cmdpll = (struct cm_dpll *)CM_DPLL;
 397         struct dpll_params dpll_lcd = {m, n, -1, -1, -1, -1, -1};
 398
 399         u32 *const clk_domains[] = {
 400                 &cmper->lcdclkctrl,
 401                 0
 402         };
 403         u32 *const clk_modules_explicit_en[] = {
 404                 &cmper->lcdclkctrl,
 405                 &cmper->lcdcclkstctrl,
 406                 &cmper->epwmss0clkctrl,
 407                 0
 408         };
 409         do_enable_clocks(clk_domains, clk_modules_explicit_en, 1);
 410         writel(0x0, &cmdpll->clklcdcpixelclk);
 411
 412         do_setup_dpll(&dpll_lcd_regs, &dpll_lcd);
 413
 414         return 0;
 415 }
 416
 417 static int board_video_init(void)
 418 {
 419         conf_disp_pll(24, 1);
 420         if (factory_dat.pxm50)
 421                 da8xx_video_init(&lcd_panels[0], &lcd_cfg, lcd_cfg.bpp);
 422         else
 423                 da8xx_video_init(&lcd_panels[1], &lcd_cfg, lcd_cfg.bpp);
 424
 425         enable_pwm();
 426         enable_backlight();
 427
 428         return 0;
 429 }
 430 #endif
 431
 432 #ifdef CONFIG_BOARD_LATE_INIT
 433 int board_late_init(void)
 434 {
 435         int ret;
 436
 437         omap_nand_switch_ecc(1, 8);
 438
 439 #ifdef CONFIG_FACTORYSET
 440         if (factory_dat.asn[0] != 0) {
 441                 char tmp[2 * MAX_STRING_LENGTH + 2];
 442
 443                 if (strncmp((const char *)factory_dat.asn, "PXM50", 5) == 0)
 444                         factory_dat.pxm50 = 1;
 445                 else
 446                         factory_dat.pxm50 = 0;
 447                 sprintf(tmp, "%s_%s", factory_dat.asn,
 448                         factory_dat.comp_version);
 449                 ret = env_set("boardid", tmp);
 450                 if (ret)
 451                         printf("error setting board id\n");
 452         } else {
 453                 factory_dat.pxm50 = 1;
 454                 ret = env_set("boardid", "PXM50_1.0");
 455                 if (ret)
 456                         printf("error setting board id\n");
 457         }
 458         debug("PXM50: %d\n", factory_dat.pxm50);
 459 #endif
 460
 461         return 0;
 462 }
 463 #endif
 464
 465 #include "../common/board.c"