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/board/xilinx/microblaze-generic/Kconfig

@@ -0,0 +1,36 @@
+if TARGET_MICROBLAZE_GENERIC
+
+config SYS_BOARD
+	default "microblaze-generic"
+
+config SYS_VENDOR
+	default "xilinx"
+
+config SYS_CONFIG_NAME
+	default "microblaze-generic"
+
+config XILINX_MICROBLAZE0_USE_MSR_INSTR
+	int "USE_MSR_INSTR range (0:1)"
+	default 0
+
+config XILINX_MICROBLAZE0_USE_PCMP_INSTR
+	int "USE_PCMP_INSTR range (0:1)"
+	default 0
+
+config XILINX_MICROBLAZE0_USE_BARREL
+	int "USE_BARREL range (0:1)"
+	default 0
+
+config XILINX_MICROBLAZE0_USE_DIV
+	int "USE_DIV range (0:1)"
+	default 0
+
+config XILINX_MICROBLAZE0_USE_HW_MUL
+	int "USE_HW_MUL values (0=NONE, 1=MUL32, 2=MUL64)"
+	default 0
+
+config XILINX_MICROBLAZE0_HW_VER
+	string "Core version number"
+	default 7.10.d
+
+endif

u-boot/board/xilinx/microblaze-generic/MAINTAINERS

@@ -0,0 +1,6 @@
+MICROBLAZE-GENERIC BOARD
+M:	Michal Simek <monstr@monstr.eu>
+S:	Maintained
+F:	board/xilinx/microblaze-generic/
+F:	include/configs/microblaze-generic.h
+F:	configs/microblaze-generic_defconfig

u-boot/board/xilinx/microblaze-generic/Makefile

@@ -0,0 +1,8 @@
+#
+# (C) Copyright 2000-2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y	= microblaze-generic.o

u-boot/board/xilinx/microblaze-generic/config.mk

@@ -0,0 +1,20 @@
+#
+# (C) Copyright 2007 - 2016 Michal Simek
+#
+# Michal SIMEK <monstr@monstr.eu>
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+CPU_VER := $(shell echo $(CONFIG_XILINX_MICROBLAZE0_HW_VER))
+
+# USE_HW_MUL can be 0, 1, or 2, defining a hierarchy of HW Mul support.
+CPUFLAGS-$(subst 1,,$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL)) += -mxl-multiply-high
+CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL) += -mno-xl-soft-mul
+CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV) += -mno-xl-soft-div
+CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL) += -mxl-barrel-shift
+CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR) += -mxl-pattern-compare
+
+CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))
+
+PLATFORM_CPPFLAGS += $(CPUFLAGS-1) $(CPUFLAGS-2)

u-boot/board/xilinx/microblaze-generic/microblaze-generic.c

@@ -0,0 +1,94 @@
+/*
+ * (C) Copyright 2007 Michal Simek
+ *
+ * Michal  SIMEK <monstr@monstr.eu>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+/* This is a board specific file.  It's OK to include board specific
+ * header files */
+
+#include <common.h>
+#include <config.h>
+#include <fdtdec.h>
+#include <asm/processor.h>
+#include <asm/microblaze_intc.h>
+#include <asm/asm.h>
+#include <asm/gpio.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_XILINX_GPIO
+static int reset_pin = -1;
+#endif
+
+ulong ram_base;
+
+void dram_init_banksize(void)
+{
+	gd->bd->bi_dram[0].start = ram_base;
+	gd->bd->bi_dram[0].size = get_effective_memsize();
+}
+
+int dram_init(void)
+{
+	int node;
+	fdt_addr_t addr;
+	fdt_size_t size;
+	const void *blob = gd->fdt_blob;
+
+	node = fdt_node_offset_by_prop_value(blob, -1, "device_type",
+					     "memory", 7);
+	if (node == -FDT_ERR_NOTFOUND) {
+		debug("DRAM: Can't get memory node\n");
+		return 1;
+	}
+	addr = fdtdec_get_addr_size(blob, node, "reg", &size);
+	if (addr == FDT_ADDR_T_NONE || size == 0) {
+		debug("DRAM: Can't get base address or size\n");
+		return 1;
+	}
+	ram_base = addr;
+
+	gd->ram_top = addr; /* In setup_dest_addr() is done +ram_size */
+	gd->ram_size = size;
+
+	return 0;
+};
+
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+#ifndef CONFIG_SPL_BUILD
+#ifdef CONFIG_XILINX_GPIO
+	if (reset_pin != -1)
+		gpio_direction_output(reset_pin, 1);
+#endif
+
+#ifdef CONFIG_XILINX_TB_WATCHDOG
+	hw_watchdog_disable();
+#endif
+#endif
+	puts ("Reseting board\n");
+	__asm__ __volatile__ ("	mts rmsr, r0;" \
+				"bra r0");
+
+	return 0;
+}
+
+static int gpio_init(void)
+{
+#ifdef CONFIG_XILINX_GPIO
+	reset_pin = gpio_alloc(CONFIG_SYS_GPIO_0_ADDR, "reset", 1);
+	if (reset_pin != -1)
+		gpio_request(reset_pin, "reset_pin");
+#endif
+	return 0;
+}
+
+int board_late_init(void)
+{
+	gpio_init();
+
+	return 0;
+}

u-boot/board/xilinx/microblaze-generic/xparameters.h

@@ -0,0 +1,28 @@
+/*
+ * (C) Copyright 2007 Michal Simek
+ *
+ * Michal  SIMEK <monstr@monstr.eu>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ *
+ * CAUTION: This file is a faked configuration !!!
+ *          There is no real target for the microblaze-generic
+ *          configuration. You have to replace this file with
+ *          the generated file from your Xilinx design flow.
+ */
+
+#define XILINX_BOARD_NAME	microblaze-generic
+
+/* Microblaze is microblaze_0 */
+#define XILINX_FSL_NUMBER	3
+
+/* GPIO is LEDs_4Bit*/
+#define XILINX_GPIO_BASEADDR	0x40000000
+
+/* Flash Memory is FLASH_2Mx32 */
+#define XILINX_FLASH_START	0x2c000000
+#define XILINX_FLASH_SIZE	0x00800000
+
+/* Watchdog IP is wxi_timebase_wdt_0 */
+#define XILINX_WATCHDOG_BASEADDR	0x50000000
+#define XILINX_WATCHDOG_IRQ		1