avionic design with actual uboot and tooling

submodule of avionic design uboot bootloader and with included tools to
get you started , read readme.md and readme-tk1-loader.md

u-boot/drivers/power/battery/Makefile

@@ -0,0 +1,9 @@
+#
+# Copyright (C) 2012 Samsung Electronics
+# Lukasz Majewski <l.majewski@samsung.com>
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-$(CONFIG_POWER_BATTERY_TRATS) += bat_trats.o
+obj-$(CONFIG_POWER_BATTERY_TRATS2) += bat_trats2.o

u-boot/drivers/power/battery/bat_trats.c

@@ -0,0 +1,90 @@
+/*
+ *  Copyright (C) 2012 Samsung Electronics
+ *  Lukasz Majewski <l.majewski@samsung.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <console.h>
+#include <power/pmic.h>
+#include <power/battery.h>
+#include <power/max8997_pmic.h>
+#include <errno.h>
+
+static struct battery battery_trats;
+
+static int power_battery_charge(struct pmic *bat)
+{
+	struct power_battery *p_bat = bat->pbat;
+	struct battery *battery = p_bat->bat;
+	int k;
+
+	if (bat->chrg->chrg_state(p_bat->chrg, PMIC_CHARGER_ENABLE, 450))
+		return -1;
+
+	for (k = 0; bat->chrg->chrg_bat_present(p_bat->chrg) &&
+		     bat->chrg->chrg_type(p_bat->muic) &&
+		     battery->state_of_chrg < 100; k++) {
+		udelay(2000000);
+		if (!(k % 5))
+			puts(".");
+		bat->fg->fg_battery_update(p_bat->fg, bat);
+
+		if (k == 200) {
+			debug(" %d [V]", battery->voltage_uV);
+			puts("\n");
+			k = 0;
+		}
+
+		if (ctrlc()) {
+			printf("\nCharging disabled on request.\n");
+			goto exit;
+		}
+	}
+ exit:
+	bat->chrg->chrg_state(p_bat->chrg, PMIC_CHARGER_DISABLE, 0);
+
+	return 0;
+}
+
+static int power_battery_init_trats(struct pmic *bat_,
+				    struct pmic *fg_,
+				    struct pmic *chrg_,
+				    struct pmic *muic_)
+{
+	bat_->pbat->fg = fg_;
+	bat_->pbat->chrg = chrg_;
+	bat_->pbat->muic = muic_;
+
+	bat_->fg = fg_->fg;
+	bat_->chrg = chrg_->chrg;
+	bat_->chrg->chrg_type = muic_->chrg->chrg_type;
+	return 0;
+}
+
+static struct power_battery power_bat_trats = {
+	.bat = &battery_trats,
+	.battery_init = power_battery_init_trats,
+	.battery_charge = power_battery_charge,
+};
+
+int power_bat_init(unsigned char bus)
+{
+	static const char name[] = "BAT_TRATS";
+	struct pmic *p = pmic_alloc();
+
+	if (!p) {
+		printf("%s: POWER allocation error!\n", __func__);
+		return -ENOMEM;
+	}
+
+	debug("Board BAT init\n");
+
+	p->interface = PMIC_NONE;
+	p->name = name;
+	p->bus = bus;
+
+	p->pbat = &power_bat_trats;
+	return 0;
+}

u-boot/drivers/power/battery/bat_trats2.c

@@ -0,0 +1,65 @@
+/*
+ *  Copyright (C) 2013 Samsung Electronics
+ *  Piotr Wilczek <p.wilczek@samsung.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <power/pmic.h>
+#include <power/battery.h>
+#include <power/max77693_pmic.h>
+#include <errno.h>
+
+static struct battery battery_trats;
+
+static int power_battery_charge(struct pmic *bat)
+{
+	struct power_battery *p_bat = bat->pbat;
+
+	if (bat->chrg->chrg_state(p_bat->chrg, PMIC_CHARGER_ENABLE, 450))
+		return -1;
+
+	return 0;
+}
+
+static int power_battery_init_trats2(struct pmic *bat_,
+				    struct pmic *fg_,
+				    struct pmic *chrg_,
+				    struct pmic *muic_)
+{
+	bat_->pbat->fg = fg_;
+	bat_->pbat->chrg = chrg_;
+	bat_->pbat->muic = muic_;
+
+	bat_->fg = fg_->fg;
+	bat_->chrg = chrg_->chrg;
+	bat_->chrg->chrg_type = muic_->chrg->chrg_type;
+	return 0;
+}
+
+static struct power_battery power_bat_trats2 = {
+	.bat = &battery_trats,
+	.battery_init = power_battery_init_trats2,
+	.battery_charge = power_battery_charge,
+};
+
+int power_bat_init(unsigned char bus)
+{
+	static const char name[] = "BAT_TRATS2";
+	struct pmic *p = pmic_alloc();
+
+	if (!p) {
+		printf("%s: POWER allocation error!\n", __func__);
+		return -ENOMEM;
+	}
+
+	debug("Board BAT init\n");
+
+	p->interface = PMIC_NONE;
+	p->name = name;
+	p->bus = bus;
+
+	p->pbat = &power_bat_trats2;
+	return 0;
+}