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/keymile/kmp204x/ddr.c

@@ -0,0 +1,64 @@
+/*
+ * (C) Copyright 2013 Keymile AG
+ * Valentin Longchamp <valentin.longchamp@keymile.com>
+ *
+ * Copyright 2009-2011 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+  */
+
+#include <common.h>
+#include <i2c.h>
+#include <hwconfig.h>
+#include <asm/mmu.h>
+#include <fsl_ddr_sdram.h>
+#include <fsl_ddr_dimm_params.h>
+
+void fsl_ddr_board_options(memctl_options_t *popts,
+				dimm_params_t *pdimm,
+				unsigned int ctrl_num)
+{
+	if (ctrl_num) {
+		printf("Wrong parameter for controller number %d", ctrl_num);
+		return;
+	}
+
+	/* automatic calibration for nb of cycles between read and DQS pre */
+	popts->cpo_override = 0xFF;
+
+	/* 1/2 clk delay between wr command and data strobe */
+	popts->write_data_delay = 4;
+	/* clk lauched 1/2 applied cylcle after address command */
+	popts->clk_adjust = 4;
+	/* 1T timing: command/address held for only 1 cycle */
+	popts->twot_en = 0;
+
+	/* we have only one module, half str should be OK */
+	popts->half_strength_driver_enable = 1;
+
+	/* wrlvl values overriden as recommended by ddr init func */
+	popts->wrlvl_override = 1;
+	popts->wrlvl_sample = 0xf;
+	popts->wrlvl_start = 0x6;
+
+	/* Enable ZQ calibration */
+	popts->zq_en = 1;
+
+	/* DHC_EN =1, ODT = 75 Ohm */
+	popts->ddr_cdr1 = DDR_CDR1_DHC_EN | DDR_CDR_ODT_75ohm;
+}
+
+phys_size_t initdram(int board_type)
+{
+	phys_size_t dram_size = 0;
+
+	puts("Initializing with SPD\n");
+
+	dram_size = fsl_ddr_sdram();
+
+	dram_size = setup_ddr_tlbs(dram_size / 0x100000);
+	dram_size *= 0x100000;
+
+	debug("    DDR: ");
+	return dram_size;
+}