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// SPDX-License-Identifier: GPL-2.0+
/*
* board.c
*
* Board functions for B&R BRXRE1 Board
*
* Copyright (C) 2013 Hannes Schmelzer <oe5hpm@oevsv.at>
* Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com
*
*/
#include <env.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/gpio.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/mem.h>
#include <asm/global_data.h>
#include <asm/io.h>
#include <asm/emif.h>
#include <asm/gpio.h>
#include <dm.h>
#include <power/tps65217.h>
#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->relocaddr,
(u32)env_get_ulong("vx_memtop", 16, gd->relocaddr),
(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 */
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