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u-boot/board/BuR/brxre1/board.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style 
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

295 lines
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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 <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/gpio.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/mem.h>
#include <asm/io.h>
#include <asm/emif.h>
#include <asm/gpio.h>
#include <i2c.h>
#include <power/tps65217.h>
#include "../common/bur_common.h"
#include <lcd.h>
/* -------------------------------------------------------------------------*/
/* -- defines for used GPIO Hardware -- */
#define ESC_KEY (0+19)
#define LCD_PWR (0+5)
#define PUSH_KEY (0+31)
/* -------------------------------------------------------------------------*/
/* -- 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
#define RSTCTRL_CAN_STB 0x4040
DECLARE_GLOBAL_DATA_PTR;
#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_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 */
gpio_direction_output(LCD_PWR, 0);
/* setup I2C */
enable_i2c_pin_mux();
i2c_set_bus_num(0);
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 | RSTCTRL_CAN_STB;
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");
}
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 toff = 1000;
unsigned int cnt = 3;
unsigned short buf = 0xAAAA;
unsigned char scratchreg = 0;
unsigned int oldspeed;
/* try to read out some boot-instruction from resetcontroller */
oldspeed = i2c_get_bus_speed();
if (i2c_set_bus_speed(CONFIG_SYS_OMAP24_I2C_SPEED_PSOC) >= 0) {
i2c_read(RSTCTRL_ADDR, RSTCTRL_SCRATCHREG, 1,
&scratchreg, sizeof(scratchreg));
i2c_set_bus_speed(oldspeed);
} else {
puts("ERROR: i2c_set_bus_speed failed! (scratchregister)\n");
}
if (gpio_get_value(ESC_KEY)) {
do {
lcd_position_cursor(1, 8);
switch (cnt) {
case 3:
lcd_puts(
"release ESC-KEY to enter SERVICE-mode.");
break;
case 2:
lcd_puts(
"release ESC-KEY to enter DIAGNOSE-mode.");
break;
case 1:
lcd_puts(
"release ESC-KEY to enter BOOT-mode. ");
break;
}
mdelay(toff);
cnt--;
if (!gpio_get_value(ESC_KEY) &&
gpio_get_value(PUSH_KEY) && 2 == cnt) {
lcd_position_cursor(1, 8);
lcd_puts(
"switching to network-console ... ");
env_set("bootcmd", "run netconsole");
cnt = 4;
break;
} else if (!gpio_get_value(ESC_KEY) &&
gpio_get_value(PUSH_KEY) && 1 == cnt) {
lcd_position_cursor(1, 8);
lcd_puts(
"starting u-boot script from USB ... ");
env_set("bootcmd", "run usbscript");
cnt = 4;
break;
} else if ((!gpio_get_value(ESC_KEY) &&
gpio_get_value(PUSH_KEY) && cnt == 0) ||
(gpio_get_value(ESC_KEY) &&
gpio_get_value(PUSH_KEY) && cnt == 0)) {
lcd_position_cursor(1, 8);
lcd_puts(
"starting script from network ... ");
env_set("bootcmd", "run netscript");
cnt = 4;
break;
} else if (!gpio_get_value(ESC_KEY)) {
break;
}
} while (cnt);
} else if (scratchreg == 0xCC) {
lcd_position_cursor(1, 8);
lcd_puts(
"starting vxworks from network ... ");
env_set("bootcmd", "run netboot");
cnt = 4;
} else if (scratchreg == 0xCD) {
lcd_position_cursor(1, 8);
lcd_puts(
"starting script from network ... ");
env_set("bootcmd", "run netscript");
cnt = 4;
} else if (scratchreg == 0xCE) {
lcd_position_cursor(1, 8);
lcd_puts(
"starting AR from eMMC ... ");
env_set("bootcmd", "run mmcboot");
cnt = 4;
}
lcd_position_cursor(1, 8);
switch (cnt) {
case 0:
lcd_puts("entering BOOT-mode. ");
env_set("bootcmd", "run defaultAR");
buf = 0x0000;
break;
case 1:
lcd_puts("entering DIAGNOSE-mode. ");
buf = 0x0F0F;
break;
case 2:
lcd_puts("entering SERVICE mode. ");
buf = 0xB4B4;
break;
case 3:
lcd_puts("loading OS... ");
buf = 0x0404;
break;
}
/* 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");
}
/* setup othbootargs for bootvx-command (vxWorks bootline) */
char othbootargs[128];
snprintf(othbootargs, sizeof(othbootargs),
"u=vxWorksFTP pw=vxWorks o=0x%08x;0x%08x;0x%08x;0x%08x",
(unsigned int) gd->fb_base-0x20,
(u32)env_get_ulong("vx_memtop", 16, gd->fb_base-0x20),
(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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