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/ifm/o2dnt2/Kconfig

@@ -0,0 +1,77 @@
+if TARGET_O2D
+
+config SYS_BOARD
+	default "o2dnt2"
+
+config SYS_VENDOR
+	default "ifm"
+
+config SYS_CONFIG_NAME
+	default "o2d"
+
+endif
+
+if TARGET_O2D300
+
+config SYS_BOARD
+	default "o2dnt2"
+
+config SYS_VENDOR
+	default "ifm"
+
+config SYS_CONFIG_NAME
+	default "o2d300"
+
+endif
+
+if TARGET_O2DNT2
+
+config SYS_BOARD
+	default "o2dnt2"
+
+config SYS_VENDOR
+	default "ifm"
+
+config SYS_CONFIG_NAME
+	default "o2dnt2"
+
+endif
+
+if TARGET_O2I
+
+config SYS_BOARD
+	default "o2dnt2"
+
+config SYS_VENDOR
+	default "ifm"
+
+config SYS_CONFIG_NAME
+	default "o2i"
+
+endif
+
+if TARGET_O2MNT
+
+config SYS_BOARD
+	default "o2dnt2"
+
+config SYS_VENDOR
+	default "ifm"
+
+config SYS_CONFIG_NAME
+	default "o2mnt"
+
+endif
+
+if TARGET_O3DNT
+
+config SYS_BOARD
+	default "o2dnt2"
+
+config SYS_VENDOR
+	default "ifm"
+
+config SYS_CONFIG_NAME
+	default "o3dnt"
+
+endif

u-boot/board/ifm/o2dnt2/MAINTAINERS

@@ -0,0 +1,20 @@
+O2DNT2 BOARD
+M:	Anatolij Gustschin <agust@denx.de>
+S:	Maintained
+F:	board/ifm/o2dnt2/
+F:	include/configs/o2d.h
+F:	configs/O2D_defconfig
+F:	include/configs/o2d300.h
+F:	configs/O2D300_defconfig
+F:	include/configs/o2dnt2.h
+F:	configs/O2DNT2_defconfig
+F:	configs/O2DNT2_RAMBOOT_defconfig
+F:	include/configs/o2i.h
+F:	configs/O2I_defconfig
+F:	include/configs/o2mnt.h
+F:	configs/O2MNT_defconfig
+F:	configs/O2MNT_O2M110_defconfig
+F:	configs/O2MNT_O2M112_defconfig
+F:	configs/O2MNT_O2M113_defconfig
+F:	include/configs/o3dnt.h
+F:	configs/O3DNT_defconfig

u-boot/board/ifm/o2dnt2/Makefile

@@ -0,0 +1,8 @@
+#
+# (C) Copyright 2005-2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y	:= o2dnt2.o

u-boot/board/ifm/o2dnt2/o2dnt2.c

@@ -0,0 +1,386 @@
+/*
+ * Partially derived from board code for digsyMTC,
+ * (C) Copyright 2009
+ * Grzegorz Bernacki, Semihalf, gjb@semihalf.com
+ *
+ * (C) Copyright 2012
+ * DENX Software Engineering, Anatolij Gustschin <agust@denx.de>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <mpc5xxx.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <libfdt.h>
+#include <fdt_support.h>
+#include <i2c.h>
+#include <miiphy.h>
+#include <net.h>
+#include <pci.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define SDRAM_MODE	0x00CD0000
+#define SDRAM_CONTROL	0x504F0000
+#define SDRAM_CONFIG1	0xD2322800
+#define SDRAM_CONFIG2	0x8AD70000
+
+enum ifm_sensor_type {
+	O2DNT		= 0x00,	/* !< O2DNT 32MB */
+	O2DNT2		= 0x01,	/* !< O2DNT2 64MB */
+	O3DNT		= 0x02,	/* !< O3DNT 32MB */
+	O3DNT_MIN	= 0x40,	/* !< O3DNT Minerva 32MB */
+	UNKNOWN		= 0xff,	/* !< Unknow sensor */
+};
+
+static enum ifm_sensor_type gt_ifm_sensor_type;
+
+#ifndef CONFIG_SYS_RAMBOOT
+static void sdram_start(int hi_addr)
+{
+	struct mpc5xxx_sdram *sdram = (struct mpc5xxx_sdram *)MPC5XXX_SDRAM;
+	long hi_addr_bit = hi_addr ? 0x01000000 : 0;
+	long control = SDRAM_CONTROL | hi_addr_bit;
+
+	/* unlock mode register */
+	out_be32(&sdram->ctrl, control | 0x80000000);
+
+	/* precharge all banks */
+	out_be32(&sdram->ctrl, control | 0x80000002);
+
+	/* auto refresh */
+	out_be32(&sdram->ctrl, control | 0x80000004);
+
+	/* set mode register */
+	out_be32(&sdram->mode, SDRAM_MODE);
+
+	/* normal operation */
+	out_be32(&sdram->ctrl, control);
+}
+#endif
+
+/*
+ * ATTENTION: Although partially referenced initdram does NOT make real use
+ *            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)
+{
+	struct mpc5xxx_mmap_ctl *mmap_ctl =
+		(struct mpc5xxx_mmap_ctl *)CONFIG_SYS_MBAR;
+	struct mpc5xxx_sdram *sdram = (struct mpc5xxx_sdram *)MPC5XXX_SDRAM;
+	ulong dramsize = 0;
+	ulong dramsize2 = 0;
+	uint svr, pvr;
+
+	if (gt_ifm_sensor_type == O2DNT2) {
+		/* activate SDRAM CS1 */
+		setbits_be32((void *)MPC5XXX_GPS_PORT_CONFIG, 0x80000000);
+	}
+
+#ifndef CONFIG_SYS_RAMBOOT
+	ulong test1, test2;
+
+	/* setup SDRAM chip selects */
+	out_be32(&mmap_ctl->sdram0, 0x0000001E); /* 2 GB at 0x0 */
+	out_be32(&mmap_ctl->sdram1, 0x00000000); /* disabled */
+
+	/* setup config registers */
+	out_be32(&sdram->config1, SDRAM_CONFIG1);
+	out_be32(&sdram->config2, SDRAM_CONFIG2);
+
+	/* find RAM size using SDRAM CS0 only */
+	sdram_start(0);
+	test1 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x08000000);
+	sdram_start(1);
+	test2 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x08000000);
+	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(&mmap_ctl->sdram0,
+			 (0x13 + __builtin_ffs(dramsize >> 20) - 1));
+	} else {
+		out_be32(&mmap_ctl->sdram0, 0); /* disabled */
+	}
+
+	/* let SDRAM CS1 start right after CS0 */
+	out_be32(&mmap_ctl->sdram1, dramsize + 0x0000001E); /* 2G */
+
+	/* find RAM size using SDRAM CS1 only */
+	if (!dramsize)
+		sdram_start(0);
+
+	test2 = test1 = get_ram_size((long *)(CONFIG_SYS_SDRAM_BASE + dramsize),
+					0x80000000);
+	if (!dramsize) {
+		sdram_start(1);
+		test2 = get_ram_size((long *)(CONFIG_SYS_SDRAM_BASE + dramsize),
+					0x80000000);
+	}
+
+	if (test1 > test2) {
+		sdram_start(0);
+		dramsize2 = test1;
+	} else {
+		dramsize2 = test2;
+	}
+
+	/* memory smaller than 1MB is impossible */
+	if (dramsize2 < (1 << 20))
+		dramsize2 = 0;
+
+	/* set SDRAM CS1 size according to the amount of RAM found */
+	if (dramsize2 > 0) {
+		out_be32(&mmap_ctl->sdram1, (dramsize |
+			 (0x13 + __builtin_ffs(dramsize2 >> 20) - 1)));
+	} else {
+		out_be32(&mmap_ctl->sdram1, dramsize); /* disabled */
+	}
+
+#else /* CONFIG_SYS_RAMBOOT */
+	/* retrieve size of memory connected to SDRAM CS0 */
+	dramsize = in_be32(&mmap_ctl->sdram0) & 0xFF;
+	if (dramsize >= 0x13)
+		dramsize = (1 << (dramsize - 0x13)) << 20;
+	else
+		dramsize = 0;
+
+	/* retrieve size of memory connected to SDRAM CS1 */
+	dramsize2 = in_be32(&mmap_ctl->sdram1) & 0xFF;
+	if (dramsize2 >= 0x13)
+		dramsize2 = (1 << (dramsize2 - 0x13)) << 20;
+	else
+		dramsize2 = 0;
+
+#endif /* CONFIG_SYS_RAMBOOT */
+
+	/*
+	 * On MPC5200B we need to set the special configuration delay in the
+	 * DDR controller. Please refer to Freescale's AN3221 "MPC5200B SDRAM
+	 * Initialization and Configuration", 3.3.1 SDelay--MBAR + 0x0190:
+	 *
+	 * "The SDelay should be written to a value of 0x00000004. It is
+	 * required to account for changes caused by normal wafer processing
+	 * parameters."
+	 */
+	svr = get_svr();
+	pvr = get_pvr();
+	if ((SVR_MJREV(svr) >= 2) &&
+	    (PVR_MAJ(pvr) == 1) && (PVR_MIN(pvr) == 4))
+		out_be32(&sdram->sdelay, 0x04);
+
+	return dramsize + dramsize2;
+}
+
+
+#define GPT_GPIO_IN	0x4
+
+int checkboard(void)
+{
+	struct mpc5xxx_gpt *gpt = (struct mpc5xxx_gpt *)MPC5XXX_GPT;
+	unsigned char board_config = 0;
+	int i;
+
+	/* switch gpt0 - gpt7 to input */
+	for (i = 0; i < 7; i++)
+		out_be32(&gpt[i].emsr, GPT_GPIO_IN);
+
+	/* get configuration byte on timer-port */
+	for (i = 0; i < 7; i++)
+		board_config |= (in_be32(&gpt[i].sr) & 0x100) >> (8 - i);
+
+	puts("Board: ");
+
+	switch (board_config) {
+	case 0:
+		puts("O2DNT\n");
+		gt_ifm_sensor_type = O2DNT;
+		break;
+	case 1:
+		puts("O3DNT\n");
+		gt_ifm_sensor_type = O3DNT;
+		break;
+	case 2:
+		puts("O2DNT2\n");
+		gt_ifm_sensor_type = O2DNT2;
+		break;
+	case 64:
+		puts("O3DNT Minerva\n");
+		gt_ifm_sensor_type = O3DNT_MIN;
+		break;
+	default:
+		puts("Unknown\n");
+		gt_ifm_sensor_type = UNKNOWN;
+		break;
+	}
+
+	return 0;
+}
+
+int board_early_init_r(void)
+{
+	struct mpc5xxx_lpb *lpb_regs = (struct mpc5xxx_lpb *)MPC5XXX_LPB;
+
+	/*
+	 * Now, when we are in RAM, enable flash write access for detection
+	 * process. Note that CS_BOOT cannot be cleared when executing in flash.
+	 */
+	clrbits_be32(&lpb_regs->cs0_cfg, 1); /* clear RO */
+	/* disable CS_BOOT */
+	clrbits_be32((void *)MPC5XXX_ADDECR, (1 << 25));
+	/* enable CS0 */
+	setbits_be32((void *)MPC5XXX_ADDECR, (1 << 16));
+
+	return 0;
+}
+
+#define MIIM_LXT971_LED_CFG_REG		0x14
+#define LXT971_LED_CFG_LINK_STATUS	0x4000
+#define LXT971_LED_CFG_RX_TX_ACTIVITY	0x0700
+#define LXT971_LED_CFG_LINK_ACTIVITY	0x00D0
+#define LXT971_LED_CFG_PULSE_STRETCH	0x0002
+/*
+ * Additional PHY intialization after reset in mpc5xxx_fec_init_phy()
+ */
+void reset_phy(void)
+{
+	/*
+	 * Set LED configuration bits.
+	 * It can't be done in misc_init_r() since FEC is not
+	 * initialized at this time. Therefore we do it here.
+	 */
+	miiphy_write("FEC", CONFIG_PHY_ADDR, MIIM_LXT971_LED_CFG_REG,
+			LXT971_LED_CFG_LINK_STATUS |
+			LXT971_LED_CFG_RX_TX_ACTIVITY |
+			LXT971_LED_CFG_LINK_ACTIVITY |
+			LXT971_LED_CFG_PULSE_STRETCH);
+}
+
+#if defined(CONFIG_POST)
+/*
+ * Reads GPIO pin PSC6_3. A keypress is reported, if PSC6_3 is low. If PSC6_3
+ * is left open, no keypress is detected.
+ */
+int post_hotkeys_pressed(void)
+{
+	struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *) MPC5XXX_GPIO;
+
+	/*
+	 * Configure PSC6_1 and PSC6_3 as GPIO. PSC6 then couldn't be used in
+	 * CODEC or UART mode. Consumer IrDA should still be possible.
+	 */
+	clrbits_be32(&gpio->port_config, 0x07000000);
+	setbits_be32(&gpio->port_config, 0x03000000);
+
+	/* Enable GPIO for GPIO_IRDA_1 (IR_USB_CLK pin) = PSC6_3 */
+	setbits_be32(&gpio->simple_gpioe, 0x20000000);
+
+	/* Configure GPIO_IRDA_1 as input */
+	clrbits_be32(&gpio->simple_ddr, 0x20000000);
+
+	return (in_be32(&gpio->simple_ival) & 0x20000000) ? 0 : 1;
+}
+#endif
+
+#ifdef CONFIG_PCI
+static struct pci_controller hose;
+
+void pci_init_board(void)
+{
+	pci_mpc5xxx_init(&hose);
+}
+#endif
+
+#ifdef CONFIG_OF_BOARD_SETUP
+#if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
+static void ft_adapt_flash_base(void *blob)
+{
+	flash_info_t	*dev = &flash_info[0];
+	int off;
+	struct fdt_property *prop;
+	int len;
+	u32 *reg, *reg2;
+
+	off = fdt_node_offset_by_compatible(blob, -1, "fsl,mpc5200b-lpb");
+	if (off < 0) {
+		printf("Could not find fsl,mpc5200b-lpb node.\n");
+		return;
+	}
+
+	/* found compatible property */
+	prop = fdt_get_property_w(blob, off, "ranges", &len);
+	if (prop) {
+		reg = reg2 = (u32 *)&prop->data[0];
+
+		reg[2] = dev->start[0];
+		reg[3] = dev->size;
+		fdt_setprop(blob, off, "ranges", reg2, len);
+	} else
+		printf("Could not find ranges\n");
+}
+
+extern ulong flash_get_size(phys_addr_t base, int banknum);
+
+/* Update the flash baseaddr settings */
+int update_flash_size(int flash_size)
+{
+	struct mpc5xxx_mmap_ctl *mm =
+		(struct mpc5xxx_mmap_ctl *) CONFIG_SYS_MBAR;
+	flash_info_t *dev;
+	int i;
+	int size = 0;
+	unsigned long base = 0x0;
+	u32 *cs_reg = (u32 *)&mm->cs0_start;
+
+	for (i = 0; i < 2; i++) {
+		dev = &flash_info[i];
+
+		if (dev->size) {
+			/* calculate new base addr for this chipselect */
+			base -= dev->size;
+			out_be32(cs_reg, START_REG(base));
+			cs_reg++;
+			out_be32(cs_reg, STOP_REG(base, dev->size));
+			cs_reg++;
+			/* recalculate the sectoraddr in the cfi driver */
+			size += flash_get_size(base, i);
+		}
+	}
+	flash_protect_default();
+	gd->bd->bi_flashstart = base;
+	return 0;
+}
+#endif /* defined(CONFIG_SYS_UPDATE_FLASH_SIZE) */
+
+int ft_board_setup(void *blob, bd_t *bd)
+{
+	int phy_addr = CONFIG_PHY_ADDR;
+	char eth_path[] = "/soc5200@f0000000/mdio@3000/ethernet-phy@0";
+
+	ft_cpu_setup(blob, bd);
+
+#if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
+#ifdef CONFIG_FDT_FIXUP_NOR_FLASH_SIZE
+	/* Update reg property in all nor flash nodes too */
+	fdt_fixup_nor_flash_size(blob);
+#endif
+	ft_adapt_flash_base(blob);
+#endif
+	/* fix up the phy address */
+	do_fixup_by_path(blob, eth_path, "reg", &phy_addr, sizeof(int), 0);
+
+	return 0;
+}
+#endif /* CONFIG_OF_BOARD_SETUP */