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/mpc8323erdb/Kconfig

@@ -0,0 +1,12 @@
+if TARGET_MPC8323ERDB
+
+config SYS_BOARD
+	default "mpc8323erdb"
+
+config SYS_VENDOR
+	default "freescale"
+
+config SYS_CONFIG_NAME
+	default "MPC8323ERDB"
+
+endif

u-boot/board/freescale/mpc8323erdb/MAINTAINERS

@@ -0,0 +1,6 @@
+MPC8323ERDB BOARD
+M:	Michael Barkowski <michael.barkowski@freescale.com>
+S:	Maintained
+F:	board/freescale/mpc8323erdb/
+F:	include/configs/MPC8323ERDB.h
+F:	configs/MPC8323ERDB_defconfig

u-boot/board/freescale/mpc8323erdb/Makefile

@@ -0,0 +1,8 @@
+#
+# (C) Copyright 2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y	:= mpc8323erdb.o

u-boot/board/freescale/mpc8323erdb/README

@@ -0,0 +1,71 @@
+Freescale MPC8323ERDB Board
+-----------------------------------------
+
+1.	Memory Map
+	The memory map looks like this:
+
+	0x0000_0000	0x03ff_ffff	DDR		 64M
+	0x8000_0000	0x8fff_ffff	PCI MEM		 256M
+	0x9000_0000	0x9fff_ffff	PCI_MMIO	 256M
+	0xe000_0000	0xe00f_ffff	IMMR		 1M
+	0xd000_0000	0xd3ff_ffff	PCI IO		 64M
+	0xfe00_0000	0xfeff_ffff	NOR FLASH (CS0)	 16M
+
+2.	Compilation
+
+	Assuming you're using BASH (or similar) as your shell:
+
+	export CROSS_COMPILE=your-cross-compiler-prefix-
+	make distclean
+	make MPC8323ERDB_config
+	make
+
+3.	Downloading and Flashing Images
+
+3.1	Reflash U-Boot Image using U-Boot
+
+	N.b, have an alternate means of programming
+	the flash available if the new U-Boot doesn't boot.
+
+	First try a:
+
+	tftpboot $loadaddr $uboot
+
+	to make sure that the TFTP load will succeed before
+	an erase goes ahead and wipes out your current firmware.
+	Then do a:
+
+	run tftpflash
+
+	which is a shorter version of the manual sequence:
+
+	tftp $loadaddr u-boot.bin
+	protect off fe000000 +$filesize
+	erase fe000000 +$filesize
+	cp.b $loadaddr fe000000 $filesize
+
+	To keep your old U-Boot's environment variables, do a:
+
+	saveenv
+
+	prior to resetting the board.
+
+3.2	Downloading and Booting Linux Kernel
+
+	Ensure that all networking-related environment variables are set
+	properly (including ipaddr, serverip, gatewayip (if needed),
+	netmask, ethaddr, eth1addr, rootpath (if using NFS root),
+	fdtfile, and bootfile).
+
+	Then, do one of the following, depending on whether you
+	want an NFS root or a ramdisk root:
+
+	run nfsboot
+
+	or
+
+	run ramboot
+
+4	Notes
+
+	The console baudrate for MPC8323ERDB is 115200bps.

u-boot/board/freescale/mpc8323erdb/mpc8323erdb.c

@@ -0,0 +1,222 @@
+/*
+ * Copyright (C) 2007 Freescale Semiconductor, Inc.
+ *
+ * Michael Barkowski <michael.barkowski@freescale.com>
+ * Based on mpc832xmds file by Dave Liu <daveliu@freescale.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <common.h>
+#include <ioports.h>
+#include <mpc83xx.h>
+#include <i2c.h>
+#include <miiphy.h>
+#include <command.h>
+#include <libfdt.h>
+#if defined(CONFIG_PCI)
+#include <pci.h>
+#endif
+#include <asm/mmu.h>
+
+const qe_iop_conf_t qe_iop_conf_tab[] = {
+	/* UCC3 */
+	{1,  0, 1, 0, 1}, /* TxD0 */
+	{1,  1, 1, 0, 1}, /* TxD1 */
+	{1,  2, 1, 0, 1}, /* TxD2 */
+	{1,  3, 1, 0, 1}, /* TxD3 */
+	{1,  9, 1, 0, 1}, /* TxER */
+	{1, 12, 1, 0, 1}, /* TxEN */
+	{3, 24, 2, 0, 1}, /* TxCLK->CLK10 */
+
+	{1,  4, 2, 0, 1}, /* RxD0 */
+	{1,  5, 2, 0, 1}, /* RxD1 */
+	{1,  6, 2, 0, 1}, /* RxD2 */
+	{1,  7, 2, 0, 1}, /* RxD3 */
+	{1,  8, 2, 0, 1}, /* RxER */
+	{1, 10, 2, 0, 1}, /* RxDV */
+	{0, 13, 2, 0, 1}, /* RxCLK->CLK9 */
+	{1, 11, 2, 0, 1}, /* COL */
+	{1, 13, 2, 0, 1}, /* CRS */
+
+	/* UCC2 */
+	{0, 18, 1, 0, 1}, /* TxD0 */
+	{0, 19, 1, 0, 1}, /* TxD1 */
+	{0, 20, 1, 0, 1}, /* TxD2 */
+	{0, 21, 1, 0, 1}, /* TxD3 */
+	{0, 27, 1, 0, 1}, /* TxER */
+	{0, 30, 1, 0, 1}, /* TxEN */
+	{3, 23, 2, 0, 1}, /* TxCLK->CLK3 */
+
+	{0, 22, 2, 0, 1}, /* RxD0 */
+	{0, 23, 2, 0, 1}, /* RxD1 */
+	{0, 24, 2, 0, 1}, /* RxD2 */
+	{0, 25, 2, 0, 1}, /* RxD3 */
+	{0, 26, 1, 0, 1}, /* RxER */
+	{0, 28, 2, 0, 1}, /* Rx_DV */
+	{3, 21, 2, 0, 1}, /* RxCLK->CLK16 */
+	{0, 29, 2, 0, 1}, /* COL */
+	{0, 31, 2, 0, 1}, /* CRS */
+
+	{3,  4, 3, 0, 2}, /* MDIO */
+	{3,  5, 1, 0, 2}, /* MDC */
+
+	{0,  0, 0, 0, QE_IOP_TAB_END}, /* END of table */
+};
+
+int fixed_sdram(void);
+
+phys_size_t initdram(int board_type)
+{
+	volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+	u32 msize = 0;
+
+	if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32) im)
+		return -1;
+
+	/* DDR SDRAM - Main SODIMM */
+	im->sysconf.ddrlaw[0].bar = CONFIG_SYS_DDR_BASE & LAWBAR_BAR;
+
+	msize = fixed_sdram();
+
+	/* return total bus SDRAM size(bytes)  -- DDR */
+	return (msize * 1024 * 1024);
+}
+
+/*************************************************************************
+ *  fixed sdram init -- doesn't use serial presence detect.
+ ************************************************************************/
+int fixed_sdram(void)
+{
+	volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+	u32 msize = 0;
+	u32 ddr_size;
+	u32 ddr_size_log2;
+
+	msize = CONFIG_SYS_DDR_SIZE;
+	for (ddr_size = msize << 20, ddr_size_log2 = 0;
+	     (ddr_size > 1); ddr_size = ddr_size >> 1, ddr_size_log2++) {
+		if (ddr_size & 1) {
+			return -1;
+		}
+	}
+	im->sysconf.ddrlaw[0].ar =
+	    LAWAR_EN | ((ddr_size_log2 - 1) & LAWAR_SIZE);
+	im->ddr.sdram_clk_cntl = CONFIG_SYS_DDR_CLK_CNTL;
+	im->ddr.csbnds[0].csbnds = CONFIG_SYS_DDR_CS0_BNDS;
+	im->ddr.cs_config[0] = CONFIG_SYS_DDR_CS0_CONFIG;
+	im->ddr.timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0;
+	im->ddr.timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1;
+	im->ddr.timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2;
+	im->ddr.timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3;
+	im->ddr.sdram_cfg = CONFIG_SYS_DDR_SDRAM_CFG;
+	im->ddr.sdram_cfg2 = CONFIG_SYS_DDR_SDRAM_CFG2;
+	im->ddr.sdram_mode = CONFIG_SYS_DDR_MODE;
+	im->ddr.sdram_mode2 = CONFIG_SYS_DDR_MODE2;
+	im->ddr.sdram_interval = CONFIG_SYS_DDR_INTERVAL;
+	__asm__ __volatile__ ("sync");
+	udelay(200);
+
+	im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN;
+	__asm__ __volatile__ ("sync");
+	return msize;
+}
+
+int checkboard(void)
+{
+	puts("Board: Freescale MPC8323ERDB\n");
+	return 0;
+}
+
+static struct pci_region pci_regions[] = {
+	{
+		bus_start: CONFIG_SYS_PCI1_MEM_BASE,
+		phys_start: CONFIG_SYS_PCI1_MEM_PHYS,
+		size: CONFIG_SYS_PCI1_MEM_SIZE,
+		flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
+	},
+	{
+		bus_start: CONFIG_SYS_PCI1_MMIO_BASE,
+		phys_start: CONFIG_SYS_PCI1_MMIO_PHYS,
+		size: CONFIG_SYS_PCI1_MMIO_SIZE,
+		flags: PCI_REGION_MEM
+	},
+	{
+		bus_start: CONFIG_SYS_PCI1_IO_BASE,
+		phys_start: CONFIG_SYS_PCI1_IO_PHYS,
+		size: CONFIG_SYS_PCI1_IO_SIZE,
+		flags: PCI_REGION_IO
+	}
+};
+
+void pci_init_board(void)
+{
+	volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_IMMR;
+	volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk;
+	volatile law83xx_t *pci_law = immr->sysconf.pcilaw;
+	struct pci_region *reg[] = { pci_regions };
+
+	/* Enable all 3 PCI_CLK_OUTPUTs. */
+	clk->occr |= 0xe0000000;
+
+	/* Configure PCI Local Access Windows */
+	pci_law[0].bar = CONFIG_SYS_PCI1_MEM_PHYS & LAWBAR_BAR;
+	pci_law[0].ar = LBLAWAR_EN | LBLAWAR_512MB;
+
+	pci_law[1].bar = CONFIG_SYS_PCI1_IO_PHYS & LAWBAR_BAR;
+	pci_law[1].ar = LBLAWAR_EN | LBLAWAR_1MB;
+
+	mpc83xx_pci_init(1, reg);
+}
+
+#if defined(CONFIG_OF_BOARD_SETUP)
+int ft_board_setup(void *blob, bd_t *bd)
+{
+	ft_cpu_setup(blob, bd);
+#ifdef CONFIG_PCI
+	ft_pci_setup(blob, bd);
+#endif
+
+	return 0;
+}
+#endif
+
+#if defined(CONFIG_SYS_I2C_MAC_OFFSET)
+int mac_read_from_eeprom(void)
+{
+	uchar buf[28];
+	char str[18];
+	int i = 0;
+	unsigned int crc = 0;
+	unsigned char enetvar[32];
+
+	/* Read MAC addresses from EEPROM */
+	if (eeprom_read(CONFIG_SYS_I2C_EEPROM_ADDR, CONFIG_SYS_I2C_MAC_OFFSET, buf, 28)) {
+		printf("\nEEPROM @ 0x%02x read FAILED!!!\n",
+		       CONFIG_SYS_I2C_EEPROM_ADDR);
+	} else {
+		uint32_t crc_buf;
+
+		memcpy(&crc_buf, &buf[24], sizeof(uint32_t));
+
+		if (crc32(crc, buf, 24) == crc_buf) {
+			printf("Reading MAC from EEPROM\n");
+			for (i = 0; i < 4; i++) {
+				if (memcmp(&buf[i * 6], "\0\0\0\0\0\0", 6)) {
+					sprintf(str,
+						"%02X:%02X:%02X:%02X:%02X:%02X",
+						buf[i * 6], buf[i * 6 + 1],
+						buf[i * 6 + 2], buf[i * 6 + 3],
+						buf[i * 6 + 4], buf[i * 6 + 5]);
+					sprintf((char *)enetvar,
+						i ? "eth%daddr" : "ethaddr", i);
+					setenv((char *)enetvar, str);
+				}
+			}
+		}
+	}
+	return 0;
+}
+#endif				/* CONFIG_I2C_MAC_OFFSET */