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/freescale/t104xrdb/t104xrdb.c

@@ -0,0 +1,157 @@
+/*
+ * Copyright 2013 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+#include <hwconfig.h>
+#include <netdev.h>
+#include <linux/compiler.h>
+#include <asm/mmu.h>
+#include <asm/processor.h>
+#include <asm/cache.h>
+#include <asm/immap_85xx.h>
+#include <asm/fsl_fdt.h>
+#include <asm/fsl_law.h>
+#include <asm/fsl_serdes.h>
+#include <asm/fsl_liodn.h>
+#include <fm_eth.h>
+#include "../common/sleep.h"
+#include "t104xrdb.h"
+#include "cpld.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int checkboard(void)
+{
+	struct cpu_type *cpu = gd->arch.cpu;
+	u8 sw;
+
+#ifdef CONFIG_T104XD4RDB
+	printf("Board: %sD4RDB\n", cpu->name);
+#else
+	printf("Board: %sRDB\n", cpu->name);
+#endif
+	printf("Board rev: 0x%02x CPLD ver: 0x%02x, ",
+	       CPLD_READ(hw_ver), CPLD_READ(sw_ver));
+
+	sw = CPLD_READ(flash_ctl_status);
+	sw = ((sw & CPLD_LBMAP_MASK) >> CPLD_LBMAP_SHIFT);
+
+	printf("vBank: %d\n", sw);
+
+	return 0;
+}
+
+int board_early_init_f(void)
+{
+#if defined(CONFIG_DEEP_SLEEP)
+	if (is_warm_boot())
+		fsl_dp_disable_console();
+#endif
+
+	return 0;
+}
+
+int board_early_init_r(void)
+{
+#ifdef CONFIG_SYS_FLASH_BASE
+	const unsigned int flashbase = CONFIG_SYS_FLASH_BASE;
+	int flash_esel = find_tlb_idx((void *)flashbase, 1);
+
+	/*
+	 * Remap Boot flash region to caching-inhibited
+	 * so that flash can be erased properly.
+	 */
+
+	/* Flush d-cache and invalidate i-cache of any FLASH data */
+	flush_dcache();
+	invalidate_icache();
+
+	if (flash_esel == -1) {
+		/* very unlikely unless something is messed up */
+		puts("Error: Could not find TLB for FLASH BASE\n");
+		flash_esel = 2;	/* give our best effort to continue */
+	} else {
+		/* invalidate existing TLB entry for flash */
+		disable_tlb(flash_esel);
+	}
+
+	set_tlb(1, flashbase, CONFIG_SYS_FLASH_BASE_PHYS,
+		MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		0, flash_esel, BOOKE_PAGESZ_256M, 1);
+#endif
+	return 0;
+}
+
+int misc_init_r(void)
+{
+	ccsr_gur_t __iomem *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+	u32 srds_s1;
+
+	srds_s1 = in_be32(&gur->rcwsr[4]) >> 24;
+
+	printf("SERDES Reference : 0x%X\n", srds_s1);
+
+	/* select SGMII*/
+	if (srds_s1 == 0x86)
+		CPLD_WRITE(misc_ctl_status, CPLD_READ(misc_ctl_status) |
+					 MISC_CTL_SG_SEL);
+
+	/* select SGMII and Aurora*/
+	if (srds_s1 == 0x8E)
+		CPLD_WRITE(misc_ctl_status, CPLD_READ(misc_ctl_status) |
+					 MISC_CTL_SG_SEL | MISC_CTL_AURORA_SEL);
+
+#if defined(CONFIG_T1040D4RDB)
+	if (hwconfig("qe-tdm")) {
+		CPLD_WRITE(sfp_ctl_status, CPLD_READ(sfp_ctl_status) |
+			   MISC_MUX_QE_TDM);
+		printf("QECSR : 0x%02x, mux to qe-tdm\n",
+		       CPLD_READ(sfp_ctl_status));
+	}
+	/* Mask all CPLD interrupt sources, except QSGMII interrupts */
+	if (CPLD_READ(sw_ver) < 0x03) {
+		debug("CPLD SW version 0x%02x doesn't support int_mask\n",
+		      CPLD_READ(sw_ver));
+	} else {
+		CPLD_WRITE(int_mask, CPLD_INT_MASK_ALL &
+			   ~(CPLD_INT_MASK_QSGMII1 | CPLD_INT_MASK_QSGMII2));
+	}
+#endif
+
+	return 0;
+}
+
+int ft_board_setup(void *blob, bd_t *bd)
+{
+	phys_addr_t base;
+	phys_size_t size;
+
+	ft_cpu_setup(blob, bd);
+
+	base = getenv_bootm_low();
+	size = getenv_bootm_size();
+
+	fdt_fixup_memory(blob, (u64)base, (u64)size);
+
+#ifdef CONFIG_PCI
+	pci_of_setup(blob, bd);
+#endif
+
+	fdt_fixup_liodn(blob);
+
+#ifdef CONFIG_HAS_FSL_DR_USB
+	fdt_fixup_dr_usb(blob, bd);
+#endif
+
+#ifdef CONFIG_SYS_DPAA_FMAN
+	fdt_fixup_fman_ethernet(blob);
+#endif
+
+	if (hwconfig("qe-tdm"))
+		fdt_del_diu(blob);
+	return 0;
+}