board/BuR/brxre1/board.c - uboot-imx - Git at Google

 /*
  * 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
  *
  * SPDX-License-Identifier:	GPL-2.0+
  *
  */
 #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);
 	/* setup LCD-Pixel Clock */
 	writel(0x2, CM_DPLL + 0x34);
 	/* 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 ...       ");
 				setenv("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 ...    ");
 				setenv("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 ...      ");
 				setenv("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 ...      ");
 		setenv("bootcmd", "run netboot");
 		cnt = 4;
 	} else if (scratchreg == 0xCD) {
 		lcd_position_cursor(1, 8);
 		lcd_puts(
 		"starting script from network ...      ");
 		setenv("bootcmd", "run netscript");
 		cnt = 4;
 	} else if (scratchreg == 0xCE) {
 		lcd_position_cursor(1, 8);
 		lcd_puts(
 		"starting AR from eMMC ...             ");
 		setenv("bootcmd", "run mmcboot");
 		cnt = 4;
 	}

 	lcd_position_cursor(1, 8);
 	switch (cnt) {
 	case 0:
 		lcd_puts("entering BOOT-mode.                    ");
 		setenv("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)getenv_ulong("vx_memtop", 16, gd->fb_base-0x20),
 		 (u32)getenv_ulong("vx_romfsbase", 16, 0),
 		 (u32)getenv_ulong("vx_romfssize", 16, 0));
 	setenv("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 */
	/*
	* 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
	*
	* SPDX-License-Identifier: GPL-2.0+
	*
	*/
	#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);
	/* setup LCD-Pixel Clock */
	writel(0x2, CM_DPLL + 0x34);
	/* 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 ... ");
	setenv("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 ... ");
	setenv("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 ... ");
	setenv("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 ... ");
	setenv("bootcmd", "run netboot");
	cnt = 4;
	} else if (scratchreg == 0xCD) {
	lcd_position_cursor(1, 8);
	lcd_puts(
	"starting script from network ... ");
	setenv("bootcmd", "run netscript");
	cnt = 4;
	} else if (scratchreg == 0xCE) {
	lcd_position_cursor(1, 8);
	lcd_puts(
	"starting AR from eMMC ... ");
	setenv("bootcmd", "run mmcboot");
	cnt = 4;
	}

	lcd_position_cursor(1, 8);
	switch (cnt) {
	case 0:
	lcd_puts("entering BOOT-mode. ");
	setenv("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)getenv_ulong("vx_memtop", 16, gd->fb_base-0x20),
	(u32)getenv_ulong("vx_romfsbase", 16, 0),
	(u32)getenv_ulong("vx_romfssize", 16, 0));
	setenv("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 */