--- /dev/null
+/*
+ * 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 */
projects / oweals / u-boot.git / blobdiff