board/BuR/brsmarc1: initial commit

This commit adds support for the B&R brsmarc1 SoM.

The SoM is based on TI's AM335x SoC.
Mainly vxWorks 6.9.4.x is running on the board,
doing some PLC stuff on various carrier boards.

Signed-off-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>

1 files changed, 168 insertions, 0 deletions

diff --git a/board/BuR/brsmarc1/board.c b/board/BuR/brsmarc1/board.c
new file mode 100644
index 0000000000..4c70346148
--- /dev/null
+++ b/board/BuR/brsmarc1/board.c
@@ -0,0 +1,168 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * board.c
+ *
+ * Board functions for B&R BRSMARC1 Board
+ *
+ * Copyright (C) 2017 Hannes Schmelzer <oe5hpm@oevsv.at>
+ * B&R Industrial Automation 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/sys_proto.h>
+#include <asm/arch/mem.h>
+#include <asm/io.h>
+#include <asm/gpio.h>
+#include <asm/emif.h>
+#include <power/tps65217.h>
+#include "../common/bur_common.h"
+#include "../common/br_resetc.h"
+
+/* -------------------------------------------------------------------------*/
+/* -- defines for used GPIO Hardware -- */
+#define PER_RESET		(2 * 32 + 0)
+
+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)
+{
+	struct cm_perpll *const cmper = (struct cm_perpll *)CM_PER;
+	struct cm_wkuppll *const cmwkup = (struct cm_wkuppll *)CM_WKUP;
+
+	int rc;
+	/*
+	 * enable additional clocks of modules which are accessed later from
+	 * VxWorks OS
+	 */
+	u32 *const clk_domains[] = { 0 };
+	u32 *const clk_modules_specific[] = {
+		&cmwkup->wkup_adctscctrl,
+		&cmper->spi1clkctrl,
+		&cmper->dcan0clkctrl,
+		&cmper->dcan1clkctrl,
+		&cmper->timer4clkctrl,
+		&cmper->timer5clkctrl,
+		&cmper->lcdclkctrl,
+		&cmper->lcdcclkstctrl,
+		0
+	};
+	do_enable_clocks(clk_domains, clk_modules_specific, 1);
+
+	/* setup I2C */
+	enable_i2c_pin_mux();
+
+	/* peripheral reset */
+	rc = gpio_request(PER_RESET, "PER_RESET");
+	if (rc != 0)
+		printf("cannot request PER_RESET GPIO!\n");
+
+	rc = gpio_direction_output(PER_RESET, 0);
+	if (rc != 0)
+		printf("cannot set PER_RESET GPIO!\n");
+
+	/* setup pmic */
+	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 */
+#if !defined(CONFIG_SPL_BUILD)
+
+/* decision if backlight is switched on or not on powerup */
+int board_backlightstate(void)
+{
+	u8 bklmask, rstcause;
+	int rc = 0;
+
+	rc |= br_resetc_regget(RSTCTRL_SCRATCHREG1, &bklmask);
+	rc |= br_resetc_regget(RSTCTRL_ERSTCAUSE, &rstcause);
+
+	if (rc != 0) {
+		printf("%s: read rstctrl failed!\n", __func__);
+		return 1;
+	}
+
+	if ((rstcause & bklmask) != 0)
+		return 0;
+
+	return 1;
+}
+
+/* Basic board specific setup. run quite after relocation */
+int board_init(void)
+{
+	if (power_tps65217_init(0))
+		printf("WARN: cannot setup PMIC 0x24 @ bus #0, not found!.\n");
+
+	return 0;
+}
+
+#if defined(CONFIG_BOARD_LATE_INIT)
+
+int board_late_init(void)
+{
+	br_resetc_bmode();
+
+	return 0;
+}
+
+#endif /* CONFIG_BOARD_LATE_INIT */
+#endif /* !CONFIG_SPL_BUILD */