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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 <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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