board/siemens/pxm2/board.c

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