/* * board.c * * Board functions for B&R KWB Board * * Copyright (C) 2013 Hannes Petermaier * Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com * * SPDX-License-Identifier: GPL-2.0+ * */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "../common/bur_common.h" /* -------------------------------------------------------------------------*/ /* -- defines for used GPIO Hardware -- */ #define KEY (0+4) #define LCD_PWR (0+5) #define PUSH_KEY (0+31) #define USB2SD_NRST (32+29) #define USB2SD_PWR (96+13) /* -------------------------------------------------------------------------*/ /* -- PSOC Resetcontroller Register defines -- */ /* I2C Address of controller */ #define RSTCTRL_ADDR 0x75 /* Register for CTRL-word */ #define RSTCTRL_CTRLREG 0x01 /* Register for giving some information to VxWorks OS */ #define RSTCTRL_SCRATCHREG 0x04 /* -- defines for RSTCTRL_CTRLREG -- */ #define RSTCTRL_FORCE_PWR_NEN 0x0404 #if defined(CONFIG_SPL_BUILD) /* TODO: check ram-timing ! */ 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) { unsigned int oldspeed; unsigned short buf; 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_kwbspecific[] = { &cmwkup->wkup_adctscctrl, &cmper->spi1clkctrl, &cmper->dcan0clkctrl, &cmper->dcan1clkctrl, &cmper->epwmss0clkctrl, &cmper->epwmss1clkctrl, &cmper->epwmss2clkctrl, 0 }; do_enable_clocks(clk_domains, clk_modules_kwbspecific, 1); /* power-OFF LCD-Display */ gpio_direction_output(LCD_PWR, 0); /* setup I2C */ enable_i2c0_pin_mux(); i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE); /* power-ON 3V3 via Resetcontroller */ oldspeed = i2c_get_bus_speed(); if (i2c_set_bus_speed(CONFIG_SYS_OMAP24_I2C_SPEED_PSOC) >= 0) { buf = RSTCTRL_FORCE_PWR_NEN; i2c_write(RSTCTRL_ADDR, RSTCTRL_CTRLREG, 1, (uint8_t *)&buf, sizeof(buf)); i2c_set_bus_speed(oldspeed); } else { puts("ERROR: i2c_set_bus_speed failed! (turn on PWR_nEN)\n"); } #if defined(CONFIG_AM335X_USB0) /* power on USB2SD Controller */ gpio_direction_output(USB2SD_PWR, 1); mdelay(1); /* give a reset Pulse to USB2SD Controller */ gpio_direction_output(USB2SD_NRST, 0); mdelay(1); gpio_set_value(USB2SD_NRST, 1); #endif pmicsetup(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) { gpmc_init(); return 0; } #ifdef CONFIG_BOARD_LATE_INIT int board_late_init(void) { const unsigned int ton = 250; const unsigned int toff = 1000; unsigned int cnt = 3; unsigned short buf = 0xAAAA; unsigned int oldspeed; tps65217_reg_write(TPS65217_PROT_LEVEL_NONE, TPS65217_WLEDCTRL2, 0x32, 0xFF); /* 50% dimlevel */ if (gpio_get_value(KEY)) { do { /* turn on light */ tps65217_reg_write(TPS65217_PROT_LEVEL_NONE, TPS65217_WLEDCTRL1, 0x09, 0xFF); mdelay(ton); /* turn off light */ tps65217_reg_write(TPS65217_PROT_LEVEL_NONE, TPS65217_WLEDCTRL1, 0x01, 0xFF); mdelay(toff); cnt--; if (!gpio_get_value(KEY) && gpio_get_value(PUSH_KEY) && 1 == cnt) { puts("updating from USB ...\n"); setenv("bootcmd", "run usbupdate"); break; } else if (!gpio_get_value(KEY)) { break; } } while (cnt); } switch (cnt) { case 0: puts("3 blinks ... entering BOOT mode.\n"); buf = 0x0000; break; case 1: puts("2 blinks ... entering DIAGNOSE mode.\n"); buf = 0x0F0F; break; case 2: puts("1 blinks ... entering SERVICE mode.\n"); buf = 0xB4B4; break; case 3: puts("0 blinks ... entering RUN mode.\n"); buf = 0x0404; break; } mdelay(ton); /* turn on light */ tps65217_reg_write(TPS65217_PROT_LEVEL_NONE, TPS65217_WLEDCTRL1, 0x09, 0xFF); /* write bootinfo into scratchregister of resetcontroller */ oldspeed = i2c_get_bus_speed(); if (i2c_set_bus_speed(CONFIG_SYS_OMAP24_I2C_SPEED_PSOC) >= 0) { i2c_write(RSTCTRL_ADDR, RSTCTRL_SCRATCHREG, 1, (uint8_t *)&buf, sizeof(buf)); i2c_set_bus_speed(oldspeed); } else { puts("ERROR: i2c_set_bus_speed failed! (scratchregister)\n"); } /* * 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 */