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/phytec/pcm030/Kconfig

@@ -0,0 +1,12 @@
+if TARGET_PCM030
+
+config SYS_BOARD
+	default "pcm030"
+
+config SYS_VENDOR
+	default "phytec"
+
+config SYS_CONFIG_NAME
+	default "pcm030"
+
+endif

u-boot/board/phytec/pcm030/MAINTAINERS

@@ -0,0 +1,7 @@
+PCM030 BOARD
+M:	Jon Smirl <jonsmirl@gmail.com>
+S:	Maintained
+F:	board/phytec/pcm030/
+F:	include/configs/pcm030.h
+F:	configs/pcm030_defconfig
+F:	configs/pcm030_LOWBOOT_defconfig

u-boot/board/phytec/pcm030/Makefile

@@ -0,0 +1,8 @@
+#
+# (C) Copyright 2003-2007
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y	:= pcm030.o

u-boot/board/phytec/pcm030/README

@@ -0,0 +1,42 @@
+To build RAMBOOT, replace this section the main Makefile
+
+pcm030_config \
+pcm030_RAMBOOT_config \
+pcm030_LOWBOOT_config:	unconfig
+	@ >include/config.h
+	@[ -z "$(findstring LOWBOOT_,$@)" ] || \
+		{ echo "CONFIG_SYS_TEXT_BASE = 0xFF000000"	>board/phytec/pcm030/config.tmp ; \
+		  echo "... with LOWBOOT configuration" ; \
+		}
+	@[ -z "$(findstring RAMBOOT_,$@)" ] || \
+	       { echo "CONFIG_SYS_TEXT_BASE = 0x00100000" >board/phycore_mpc5200b_tiny/\
+			config.tmp ; \
+		 echo "... with RAMBOOT configuration" ; \
+		 echo "... remember to make sure that MBAR is already \
+				switched to 0xF0000000 !!!" ; \
+	       }
+	@$(MKCONFIG) -a pcm030 ppc mpc5xxx pcm030 phytec
+	@ echo "remember to set pcm030_REV to 0 for rev 1245.0 rev or to 1 for rev 1245.1"
+
+Alternative SDRAM settings:
+
+#define SDRAM_MODE	0x018D0000
+#define SDRAM_EMODE	0x40090000
+#define SDRAM_CONTROL	0x715f0f00
+#define SDRAM_CONFIG1	0x73722930
+#define SDRAM_CONFIG2	0x47770000
+
+/* Settings for XLB = 99 MHz */
+#define SDRAM_MODE	0x008D0000
+#define SDRAM_EMODE	0x40090000
+#define SDRAM_CONTROL	0x714b0f00
+#define SDRAM_CONFIG1	0x63611730
+#define SDRAM_CONFIG2	0x47670000
+
+The board ships default with the environment in EEPROM
+Moving the environment to flash can be more reliable
+
+#define CONFIG_ENV_IS_IN_FLASH	1
+#define CONFIG_ENV_ADDR		(CONFIG_SYS_FLASH_BASE + 0xfe0000)
+#define CONFIG_ENV_SIZE		0x20000
+#define CONFIG_ENV_SECT_SIZE	0x20000

u-boot/board/phytec/pcm030/mt46v32m16-75.h

@@ -0,0 +1,21 @@
+/*
+ * (C) Copyright 2004
+ * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com.
+ *
+ * Eric Schumann, Phytec Messtechnik
+ * adapted for mt46v32m16-75 DDR-RAM
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#define SDRAM_DDR	1		/* is DDR */
+
+/* Settings for XLB = 132 MHz */
+
+#define SDRAM_MODE	0x018D0000
+#define SDRAM_EMODE	0x40090000
+#define SDRAM_CONTROL	0x71500F00
+#define SDRAM_CONFIG1	0x73711930
+#define SDRAM_CONFIG2	0x47770000
+
+#define SDRAM_TAPDELAY	0x10000000 /* reserved Bit in MPC5200 B3-Step */

u-boot/board/phytec/pcm030/pcm030.c

@@ -0,0 +1,205 @@
+/*
+ * (C) Copyright 2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2004
+ * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com.
+ *
+ * (C) Copyright 2006
+ * Eric Schumann, Phytec Messtechnik GmbH
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <mpc5xxx.h>
+#include <pci.h>
+#include <asm/io.h>
+
+#include "mt46v32m16-75.h"
+
+#ifndef CONFIG_SYS_RAMBOOT
+static void sdram_start(int hi_addr)
+{
+	volatile struct mpc5xxx_cdm *cdm =
+		(struct mpc5xxx_cdm *)MPC5XXX_CDM;
+	volatile struct mpc5xxx_sdram *sdram =
+		(struct mpc5xxx_sdram *)MPC5XXX_SDRAM;
+
+	long hi_addr_bit = hi_addr ? 0x01000000 : 0;
+
+	/* unlock mode register */
+	out_be32 (&sdram->ctrl,
+		(SDRAM_CONTROL | 0x80000000 | hi_addr_bit));
+
+	/* precharge all banks */
+	out_be32 (&sdram->ctrl,
+		(SDRAM_CONTROL | 0x80000002 | hi_addr_bit));
+
+#ifdef SDRAM_DDR
+	/* set mode register: extended mode */
+	out_be32 (&sdram->mode, (SDRAM_EMODE));
+
+	/* set mode register: reset DLL */
+	out_be32 (&sdram->mode,
+		(SDRAM_MODE | 0x04000000));
+#endif
+
+	/* precharge all banks */
+	out_be32 (&sdram->ctrl,
+		(SDRAM_CONTROL | 0x80000002 | hi_addr_bit));
+
+	/* auto refresh */
+	out_be32 (&sdram->ctrl,
+		(SDRAM_CONTROL | 0x80000004 | hi_addr_bit));
+
+	/* set mode register */
+	out_be32 (&sdram->mode, (SDRAM_MODE));
+
+	/* normal operation */
+	out_be32 (&sdram->ctrl,
+		(SDRAM_CONTROL | hi_addr_bit));
+
+	/* set CDM clock enable register, set MPC5200B SDRAM bus */
+	/* to reduced driver strength */
+	out_be32 (&cdm->clock_enable, (0x00CFFFFF));
+}
+#endif
+
+/*
+ * ATTENTION: Although partially referenced initdram does NOT make
+ *	real use of CONFIG_SYS_SDRAM_BASE. The code does not
+ *	work if CONFIG_SYS_SDRAM_BASE
+ *	is something else than 0x00000000.
+ */
+
+phys_size_t initdram(int board_type)
+{
+	volatile struct mpc5xxx_mmap_ctl *mm =
+		(struct mpc5xxx_mmap_ctl *)CONFIG_SYS_MBAR;
+	volatile struct mpc5xxx_cdm *cdm =
+		(struct mpc5xxx_cdm *)MPC5XXX_CDM;
+	volatile struct mpc5xxx_sdram *sdram =
+		(struct mpc5xxx_sdram *)MPC5XXX_SDRAM;
+	ulong dramsize = 0;
+	ulong dramsize2 = 0;
+#ifndef CONFIG_SYS_RAMBOOT
+	ulong test1, test2;
+
+	/* setup SDRAM chip selects */
+							 /* 256MB at 0x0 */
+	out_be32 (&mm->sdram0, 0x0000001b);
+							 /* disabled */
+	out_be32 (&mm->sdram1, 0x10000000);
+
+	/* setup config registers */
+	out_be32 (&sdram->config1, SDRAM_CONFIG1);
+	out_be32 (&sdram->config2, SDRAM_CONFIG2);
+
+#if defined(SDRAM_DDR) && defined(SDRAM_TAPDELAY)
+	/* set tap delay */
+	out_be32 (&cdm->porcfg, SDRAM_TAPDELAY);
+#endif
+
+	/* find RAM size using SDRAM CS0 only */
+	sdram_start(0);
+	test1 = get_ram_size((long *) CONFIG_SYS_SDRAM_BASE, 0x10000000);
+	sdram_start(1);
+	test2 = get_ram_size((long *) CONFIG_SYS_SDRAM_BASE, 0x10000000);
+	if (test1 > test2) {
+		sdram_start(0);
+		dramsize = test1;
+	} else
+		dramsize = test2;
+
+	/* memory smaller than 1MB is impossible */
+	if (dramsize < (1 << 20))
+		dramsize = 0;
+
+	/* set SDRAM CS0 size according to the amount of RAM found */
+	if (dramsize > 0) {
+		out_be32 (&mm->sdram0,
+			(0x13 + __builtin_ffs(dramsize >> 20) - 1));
+	} else {
+							/* disabled */
+		out_be32 (&mm->sdram0, 0);
+	}
+
+#else /* CONFIG_SYS_RAMBOOT */
+
+	/* retrieve size of memory connected to SDRAM CS0 */
+	dramsize = in_be32(&mm->sdram0) & 0xFF;
+	if (dramsize >= 0x13)
+		dramsize = (1 << (dramsize - 0x13)) << 20;
+	else
+		dramsize = 0;
+
+	/* retrieve size of memory connected to SDRAM CS1 */
+	dramsize2 = in_be32(&mm->sdram1) & 0xFF;
+	if (dramsize2 >= 0x13)
+		dramsize2 = (1 << (dramsize2 - 0x13)) << 20;
+	else
+		dramsize2 = 0;
+
+#endif /* CONFIG_SYS_RAMBOOT */
+
+	return dramsize + dramsize2;
+}
+
+int checkboard(void)
+{
+	puts("Board: phyCORE-MPC5200B-tiny\n");
+	return 0;
+}
+
+#ifdef CONFIG_PCI
+static struct pci_controller hose;
+
+extern void pci_mpc5xxx_init(struct pci_controller *);
+
+void pci_init_board(void)
+{
+	pci_mpc5xxx_init(&hose);
+}
+#endif
+
+#ifdef CONFIG_OF_BOARD_SETUP
+int ft_board_setup(void *blob, bd_t *bd)
+{
+	ft_cpu_setup(blob, bd);
+
+	return 0;
+}
+#endif /* CONFIG_OF_BOARD_SETUP */
+
+#if defined(CONFIG_CMD_IDE) && defined(CONFIG_IDE_RESET)
+
+#define GPIO_PSC2_4	0x02000000UL
+
+void init_ide_reset(void)
+{
+	volatile struct mpc5xxx_wu_gpio *wu_gpio =
+		(struct mpc5xxx_wu_gpio *)MPC5XXX_WU_GPIO;
+	debug("init_ide_reset\n");
+
+	/* Configure PSC2_4 as GPIO output for ATA reset */
+	setbits_be32(&wu_gpio->enable, GPIO_PSC2_4);
+	setbits_be32(&wu_gpio->ddr, GPIO_PSC2_4);
+	/* Deassert reset */
+	setbits_be32(&wu_gpio->dvo, GPIO_PSC2_4);
+}
+
+void ide_set_reset(int idereset)
+{
+	volatile struct mpc5xxx_wu_gpio *wu_gpio =
+		(struct mpc5xxx_wu_gpio *)MPC5XXX_WU_GPIO;
+	debug("ide_reset(%d)\n", idereset);
+
+	if (idereset) {
+		clrbits_be32(&wu_gpio->dvo, GPIO_PSC2_4);
+		/* Make a delay. MPC5200 spec says 25 usec min */
+		udelay(500000);
+	} else
+		setbits_be32(&wu_gpio->dvo, GPIO_PSC2_4);
+}
+#endif /* defined(CONFIG_CMD_IDE) && defined(CONFIG_IDE_RESET) */