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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * board.c
- *
- * Board functions for B&R BRSMARC1 Board
- *
- * Copyright (C) 2017 Hannes Schmelzer <oe5hpm@oevsv.at>
- * B&R Industrial Automation GmbH - http://www.br-automation.com
- *
- */
- #include <common.h>
- #include <errno.h>
- #include <init.h>
- #include <spl.h>
- #include <asm/arch/cpu.h>
- #include <asm/arch/hardware.h>
- #include <asm/arch/omap.h>
- #include <asm/arch/ddr_defs.h>
- #include <asm/arch/clock.h>
- #include <asm/arch/sys_proto.h>
- #include <asm/arch/mem.h>
- #include <asm/io.h>
- #include <asm/gpio.h>
- #include <asm/emif.h>
- #include <power/tps65217.h>
- #include "../common/bur_common.h"
- #include "../common/br_resetc.h"
- /* -------------------------------------------------------------------------*/
- /* -- defines for used GPIO Hardware -- */
- #define PER_RESET (2 * 32 + 0)
- 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)
- {
- struct cm_perpll *const cmper = (struct cm_perpll *)CM_PER;
- struct cm_wkuppll *const cmwkup = (struct cm_wkuppll *)CM_WKUP;
- int rc;
- /*
- * enable additional clocks of modules which are accessed later from
- * VxWorks OS
- */
- u32 *const clk_domains[] = { 0 };
- u32 *const clk_modules_specific[] = {
- &cmwkup->wkup_adctscctrl,
- &cmper->spi1clkctrl,
- &cmper->dcan0clkctrl,
- &cmper->dcan1clkctrl,
- &cmper->timer4clkctrl,
- &cmper->timer5clkctrl,
- &cmper->lcdclkctrl,
- &cmper->lcdcclkstctrl,
- 0
- };
- do_enable_clocks(clk_domains, clk_modules_specific, 1);
- /* setup I2C */
- enable_i2c_pin_mux();
- /* peripheral reset */
- rc = gpio_request(PER_RESET, "PER_RESET");
- if (rc != 0)
- printf("cannot request PER_RESET GPIO!\n");
- rc = gpio_direction_output(PER_RESET, 0);
- if (rc != 0)
- printf("cannot set PER_RESET GPIO!\n");
- /* setup pmic */
- 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 */
- #if !defined(CONFIG_SPL_BUILD)
- /* decision if backlight is switched on or not on powerup */
- int board_backlightstate(void)
- {
- u8 bklmask, rstcause;
- int rc = 0;
- rc |= br_resetc_regget(RSTCTRL_SCRATCHREG1, &bklmask);
- rc |= br_resetc_regget(RSTCTRL_ERSTCAUSE, &rstcause);
- if (rc != 0) {
- printf("%s: read rstctrl failed!\n", __func__);
- return 1;
- }
- if ((rstcause & bklmask) != 0)
- return 0;
- return 1;
- }
- /* Basic board specific setup. run quite after relocation */
- int board_init(void)
- {
- if (power_tps65217_init(0))
- printf("WARN: cannot setup PMIC 0x24 @ bus #0, not found!.\n");
- return 0;
- }
- #if defined(CONFIG_BOARD_LATE_INIT)
- int board_late_init(void)
- {
- br_resetc_bmode();
- return 0;
- }
- #endif /* CONFIG_BOARD_LATE_INIT */
- #endif /* !CONFIG_SPL_BUILD */
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