From 893c04e17cf74db79e052e831fe5de8323cf2aae Mon Sep 17 00:00:00 2001
From: Hannes Petermaier <oe5hpm@oevsv.at>
Date: Fri, 7 Feb 2014 08:07:36 +0100
Subject: board: Add support for B&R T-Series Motherboard

Adds support for Bernecker & Rainer Industrieelektronik GmbH T-Series
Motherboard, using TI's AM3352 SoC.

Most of code is derived from TI's AM335x_EVM

Signed-off-by: Hannes Petermaier <oe5hpm@oevsv.at>
---
 board/BuR/tseries/board.c | 147 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 147 insertions(+)
 create mode 100644 board/BuR/tseries/board.c

(limited to 'board/BuR/tseries/board.c')

diff --git a/board/BuR/tseries/board.c b/board/BuR/tseries/board.c
new file mode 100644
index 0000000..f0510e5
--- /dev/null
+++ b/board/BuR/tseries/board.c
@@ -0,0 +1,147 @@
+/*
+ * board.c
+ *
+ * Board functions for B&R LEIT Board
+ *
+ * Copyright (C) 2013 Hannes Petermaier <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"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* --------------------------------------------------------------------------*/
+/* -- defines for GPIO -- */
+#define	ETHLED_ORANGE	(96+16)	/* GPIO3_16 */
+#define	REPSWITCH	(0+20)	/* GPIO0_20 */
+
+
+#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,
+};
+
+#ifdef CONFIG_SPL_OS_BOOT
+/*
+ * called from spl_nand.c
+ * return 0 for loading linux, return 1 for loading u-boot
+ */
+int spl_start_uboot(void)
+{
+	if (0 == gpio_get_value(REPSWITCH)) {
+		blink(5, 125, ETHLED_ORANGE);
+		mdelay(1000);
+		printf("SPL: entering u-boot instead kernel image.\n");
+		return 1;
+	}
+	return 0;
+}
+#endif /* CONFIG_SPL_OS_BOOT */
+
+#define OSC	(V_OSCK/1000000)
+static const struct dpll_params dpll_ddr3 = { 400, OSC-1, 1, -1, -1, -1, -1};
+
+void am33xx_spl_board_init(void)
+{
+	pmicsetup(1000);
+}
+
+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)
+{
+	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
+	gpmc_init();
+	return 0;
+}
+
+#ifdef CONFIG_BOARD_LATE_INIT
+int board_late_init(void)
+{
+	gpio_direction_output(ETHLED_ORANGE, 0);
+
+	if (0 == gpio_get_value(REPSWITCH)) {
+		printf("\n\n\n"
+		"!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n"
+		"!!!!!!! recovery switch activated !!!!!!!\n"
+		"!!!!!!!     running usbupdate     !!!!!!!\n"
+		"!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n\n\n");
+		setenv("bootcmd", "sleep 2; run netupdate;");
+	}
+
+	printf("turning on display power+backlight ... ");
+	tps65217_reg_write(TPS65217_PROT_LEVEL_NONE, TPS65217_WLEDCTRL1,
+			   0x09, TPS65217_MASK_ALL_BITS);	/* 200 Hz, ON */
+	tps65217_reg_write(TPS65217_PROT_LEVEL_NONE, TPS65217_WLEDCTRL2,
+			   0x62, TPS65217_MASK_ALL_BITS);	/* 100% */
+	printf("ok.\n");
+
+	return 0;
+}
+#endif /* CONFIG_BOARD_LATE_INIT */
-- 
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