1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * board.c 4 * 5 * Board functions for B&R BRSMARC1 Board 6 * 7 * Copyright (C) 2017 Hannes Schmelzer <oe5hpm@oevsv.at> 8 * B&R Industrial Automation GmbH - http://www.br-automation.com 9 * 10 */ 11 #include <common.h> 12 #include <errno.h> 13 #include <init.h> 14 #include <spl.h> 15 #include <asm/arch/cpu.h> 16 #include <asm/arch/hardware.h> 17 #include <asm/arch/omap.h> 18 #include <asm/arch/ddr_defs.h> 19 #include <asm/arch/clock.h> 20 #include <asm/arch/sys_proto.h> 21 #include <asm/arch/mem.h> 22 #include <asm/global_data.h> 23 #include <asm/io.h> 24 #include <asm/gpio.h> 25 #include <asm/emif.h> 26 #include <power/tps65217.h> 27 #include "../common/bur_common.h" 28 #include "../common/br_resetc.h" 29 30 /* -------------------------------------------------------------------------*/ 31 /* -- defines for used GPIO Hardware -- */ 32 #define PER_RESET (2 * 32 + 0) 33 34 DECLARE_GLOBAL_DATA_PTR; 35 36 #if defined(CONFIG_SPL_BUILD) 37 static const struct ddr_data ddr3_data = { 38 .datardsratio0 = MT41K256M16HA125E_RD_DQS, 39 .datawdsratio0 = MT41K256M16HA125E_WR_DQS, 40 .datafwsratio0 = MT41K256M16HA125E_PHY_FIFO_WE, 41 .datawrsratio0 = MT41K256M16HA125E_PHY_WR_DATA, 42 }; 43 44 static const struct cmd_control ddr3_cmd_ctrl_data = { 45 .cmd0csratio = MT41K256M16HA125E_RATIO, 46 .cmd0iclkout = MT41K256M16HA125E_INVERT_CLKOUT, 47 48 .cmd1csratio = MT41K256M16HA125E_RATIO, 49 .cmd1iclkout = MT41K256M16HA125E_INVERT_CLKOUT, 50 51 .cmd2csratio = MT41K256M16HA125E_RATIO, 52 .cmd2iclkout = MT41K256M16HA125E_INVERT_CLKOUT, 53 }; 54 55 static struct emif_regs ddr3_emif_reg_data = { 56 .sdram_config = MT41K256M16HA125E_EMIF_SDCFG, 57 .ref_ctrl = MT41K256M16HA125E_EMIF_SDREF, 58 .sdram_tim1 = MT41K256M16HA125E_EMIF_TIM1, 59 .sdram_tim2 = MT41K256M16HA125E_EMIF_TIM2, 60 .sdram_tim3 = MT41K256M16HA125E_EMIF_TIM3, 61 .zq_config = MT41K256M16HA125E_ZQ_CFG, 62 .emif_ddr_phy_ctlr_1 = MT41K256M16HA125E_EMIF_READ_LATENCY, 63 }; 64 65 static const struct ctrl_ioregs ddr3_ioregs = { 66 .cm0ioctl = MT41K256M16HA125E_IOCTRL_VALUE, 67 .cm1ioctl = MT41K256M16HA125E_IOCTRL_VALUE, 68 .cm2ioctl = MT41K256M16HA125E_IOCTRL_VALUE, 69 .dt0ioctl = MT41K256M16HA125E_IOCTRL_VALUE, 70 .dt1ioctl = MT41K256M16HA125E_IOCTRL_VALUE, 71 }; 72 73 #define OSC (V_OSCK / 1000000) 74 const struct dpll_params dpll_ddr3 = { 400, OSC - 1, 1, -1, -1, -1, -1}; 75 76 void am33xx_spl_board_init(void) 77 { 78 struct cm_perpll *const cmper = (struct cm_perpll *)CM_PER; 79 struct cm_wkuppll *const cmwkup = (struct cm_wkuppll *)CM_WKUP; 80 81 int rc; 82 /* 83 * enable additional clocks of modules which are accessed later from 84 * VxWorks OS 85 */ 86 u32 *const clk_domains[] = { 0 }; 87 u32 *const clk_modules_specific[] = { 88 &cmwkup->wkup_adctscctrl, 89 &cmper->spi1clkctrl, 90 &cmper->dcan0clkctrl, 91 &cmper->dcan1clkctrl, 92 &cmper->timer4clkctrl, 93 &cmper->timer5clkctrl, 94 &cmper->lcdclkctrl, 95 &cmper->lcdcclkstctrl, 96 0 97 }; 98 do_enable_clocks(clk_domains, clk_modules_specific, 1); 99 100 /* setup I2C */ 101 enable_i2c_pin_mux(); 102 103 /* peripheral reset */ 104 rc = gpio_request(PER_RESET, "PER_RESET"); 105 if (rc != 0) 106 printf("cannot request PER_RESET GPIO!\n"); 107 108 rc = gpio_direction_output(PER_RESET, 0); 109 if (rc != 0) 110 printf("cannot set PER_RESET GPIO!\n"); 111 112 /* setup pmic */ 113 pmicsetup(0, 0); 114 } 115 116 const struct dpll_params *get_dpll_ddr_params(void) 117 { 118 return &dpll_ddr3; 119 } 120 121 void sdram_init(void) 122 { 123 config_ddr(400, &ddr3_ioregs, 124 &ddr3_data, 125 &ddr3_cmd_ctrl_data, 126 &ddr3_emif_reg_data, 0); 127 } 128 #endif /* CONFIG_SPL_BUILD */ 129 #if !defined(CONFIG_SPL_BUILD) 130 131 /* decision if backlight is switched on or not on powerup */ 132 int board_backlightstate(void) 133 { 134 u8 bklmask, rstcause; 135 int rc = 0; 136 137 rc |= br_resetc_regget(RSTCTRL_SCRATCHREG1, &bklmask); 138 rc |= br_resetc_regget(RSTCTRL_ERSTCAUSE, &rstcause); 139 140 if (rc != 0) { 141 printf("%s: read rstctrl failed!\n", __func__); 142 return 1; 143 } 144 145 if ((rstcause & bklmask) != 0) 146 return 0; 147 148 return 1; 149 } 150 151 /* Basic board specific setup. run quite after relocation */ 152 int board_init(void) 153 { 154 if (power_tps65217_init(0)) 155 printf("WARN: cannot setup PMIC 0x24 @ bus #0, not found!.\n"); 156 157 return 0; 158 } 159 160 #if defined(CONFIG_BOARD_LATE_INIT) 161 162 int board_late_init(void) 163 { 164 br_resetc_bmode(); 165 166 return 0; 167 } 168 169 #endif /* CONFIG_BOARD_LATE_INIT */ 170 #endif /* !CONFIG_SPL_BUILD */ 171