// SPDX-License-Identifier: GPL-2.0+ /* * board.c * * Board functions for B&R BRXRE1 Board * * Copyright (C) 2013 Hannes Schmelzer * Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com * */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "../common/bur_common.h" #include "../common/br_resetc.h" /* -------------------------------------------------------------------------*/ /* -- defines for used GPIO Hardware -- */ #define ESC_KEY (0 + 19) #define LCD_PWR (0 + 5) #define RSTCTRL_FORCE_PWR_NEN 0x04 #define RSTCTRL_CAN_STB 0x40 DECLARE_GLOBAL_DATA_PTR; #if defined(CONFIG_SPL_BUILD) static const struct ddr_data ddr3_data = { .datardsratio0 = MT41K256M16HA125E_RD_DQS, .datawdsratio0 = MT41K256M16HA125E_WR_DQS, .datafwsratio0 = MT41K256M16HA125E_PHY_FIFO_WE, .datawrsratio0 = MT41K256M16HA125E_PHY_WR_DATA, }; static const struct cmd_control ddr3_cmd_ctrl_data = { .cmd0csratio = MT41K256M16HA125E_RATIO, .cmd0iclkout = MT41K256M16HA125E_INVERT_CLKOUT, .cmd1csratio = MT41K256M16HA125E_RATIO, .cmd1iclkout = MT41K256M16HA125E_INVERT_CLKOUT, .cmd2csratio = MT41K256M16HA125E_RATIO, .cmd2iclkout = MT41K256M16HA125E_INVERT_CLKOUT, }; static struct emif_regs ddr3_emif_reg_data = { .sdram_config = MT41K256M16HA125E_EMIF_SDCFG, .ref_ctrl = MT41K256M16HA125E_EMIF_SDREF, .sdram_tim1 = MT41K256M16HA125E_EMIF_TIM1, .sdram_tim2 = MT41K256M16HA125E_EMIF_TIM2, .sdram_tim3 = MT41K256M16HA125E_EMIF_TIM3, .zq_config = MT41K256M16HA125E_ZQ_CFG, .emif_ddr_phy_ctlr_1 = MT41K256M16HA125E_EMIF_READ_LATENCY, }; static const struct ctrl_ioregs ddr3_ioregs = { .cm0ioctl = MT41K256M16HA125E_IOCTRL_VALUE, .cm1ioctl = MT41K256M16HA125E_IOCTRL_VALUE, .cm2ioctl = MT41K256M16HA125E_IOCTRL_VALUE, .dt0ioctl = MT41K256M16HA125E_IOCTRL_VALUE, .dt1ioctl = MT41K256M16HA125E_IOCTRL_VALUE, }; #define OSC (V_OSCK / 1000000) const struct dpll_params dpll_ddr3 = { 400, OSC - 1, 1, -1, -1, -1, -1}; void am33xx_spl_board_init(void) { int rc; struct cm_perpll *const cmper = (struct cm_perpll *)CM_PER; struct cm_wkuppll *const cmwkup = (struct cm_wkuppll *)CM_WKUP; /* * enable additional clocks of modules which are accessed later from * VxWorks OS */ u32 *const clk_domains[] = { 0 }; u32 *const clk_modules_xre1specific[] = { &cmwkup->wkup_adctscctrl, &cmper->spi1clkctrl, &cmper->dcan0clkctrl, &cmper->dcan1clkctrl, &cmper->epwmss0clkctrl, &cmper->epwmss1clkctrl, &cmper->epwmss2clkctrl, &cmper->lcdclkctrl, &cmper->lcdcclkstctrl, 0 }; do_enable_clocks(clk_domains, clk_modules_xre1specific, 1); /* power-OFF LCD-Display */ if (gpio_request(LCD_PWR, "LCD_PWR") != 0) printf("cannot request gpio for LCD_PWR!\n"); else if (gpio_direction_output(LCD_PWR, 0) != 0) printf("cannot set direction output on LCD_PWR!\n"); /* setup I2C */ enable_i2c_pin_mux(); /* power-ON 3V3 via Resetcontroller */ rc = br_resetc_regset(RSTCTRL_CTRLREG, RSTCTRL_FORCE_PWR_NEN | RSTCTRL_CAN_STB); if (rc != 0) printf("ERROR: cannot write to resetc (turn on PWR_nEN)!\n"); pmicsetup(0, 0); } const struct dpll_params *get_dpll_ddr_params(void) { return &dpll_ddr3; } void sdram_init(void) { config_ddr(400, &ddr3_ioregs, &ddr3_data, &ddr3_cmd_ctrl_data, &ddr3_emif_reg_data, 0); } #endif /* CONFIG_SPL_BUILD */ /* * Basic board specific setup. Pinmux has been handled already. */ int board_init(void) { /* request common used gpios */ gpio_request(ESC_KEY, "boot-key"); if (power_tps65217_init(0)) printf("WARN: cannot setup PMIC 0x24 @ bus #0, not found!.\n"); return 0; } #ifdef CONFIG_BOARD_LATE_INIT int board_boot_key(void) { return gpio_get_value(ESC_KEY); } int board_late_init(void) { char othbootargs[128]; br_resetc_bmode(); /* setup othbootargs for bootvx-command (vxWorks bootline) */ snprintf(othbootargs, sizeof(othbootargs), "u=vxWorksFTP pw=vxWorks o=0x%08x;0x%08x;0x%08x;0x%08x", (u32)gd->fb_base - 0x20, (u32)env_get_ulong("vx_memtop", 16, gd->fb_base - 0x20), (u32)env_get_ulong("vx_romfsbase", 16, 0), (u32)env_get_ulong("vx_romfssize", 16, 0)); env_set("othbootargs", othbootargs); /* * reset VBAR registers to its reset location, VxWorks 6.9.3.2 does * expect that vectors are there, original u-boot moves them to _start */ __asm__("ldr r0,=0x20000"); __asm__("mcr p15, 0, r0, c12, c0, 0"); /* Set VBAR */ return 0; } #endif /* CONFIG_BOARD_LATE_INIT */