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/xes/common/Makefile

@@ -0,0 +1,14 @@
+#
+# (C) Copyright 2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-$(CONFIG_FSL_PCI_INIT)	+= fsl_8xxx_pci.o
+obj-$(CONFIG_MPC8572)		+= fsl_8xxx_clk.o
+obj-$(CONFIG_MPC86xx)		+= fsl_8xxx_clk.o
+obj-$(CONFIG_P2020)		+= fsl_8xxx_clk.o
+obj-$(CONFIG_MPC85xx)		+= fsl_8xxx_misc.o board.o
+obj-$(CONFIG_MPC86xx)		+= fsl_8xxx_misc.o board.o
+obj-$(CONFIG_NAND_ACTL)	+= actl_nand.o

u-boot/board/xes/common/actl_nand.c

@@ -0,0 +1,49 @@
+/*
+ * Copyright 2008 Extreme Engineering Solutions, Inc.
+ *
+ * This driver support NAND devices which have address lines
+ * connected as ALE and CLE inputs.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <nand.h>
+#include <asm/io.h>
+
+/*
+ * Hardware specific access to control-lines
+ */
+static void nand_addr_hwcontrol(struct mtd_info *mtd, int cmd, uint ctrl)
+{
+	struct nand_chip *this = mtd_to_nand(mtd);
+	ulong IO_ADDR_W;
+
+	if (ctrl & NAND_CTRL_CHANGE) {
+		IO_ADDR_W = (ulong)this->IO_ADDR_W;
+
+		IO_ADDR_W &= ~(CONFIG_SYS_NAND_ACTL_CLE |
+				CONFIG_SYS_NAND_ACTL_ALE |
+				CONFIG_SYS_NAND_ACTL_NCE);
+		if (ctrl & NAND_CLE)
+			IO_ADDR_W |= CONFIG_SYS_NAND_ACTL_CLE;
+		if (ctrl & NAND_ALE)
+			IO_ADDR_W |= CONFIG_SYS_NAND_ACTL_ALE;
+		if (ctrl & NAND_NCE)
+			IO_ADDR_W |= CONFIG_SYS_NAND_ACTL_NCE;
+
+		this->IO_ADDR_W = (void *)IO_ADDR_W;
+	}
+
+	if (cmd != NAND_CMD_NONE)
+		writeb(cmd, this->IO_ADDR_W);
+}
+
+int board_nand_init(struct nand_chip *nand)
+{
+	nand->ecc.mode = NAND_ECC_SOFT;
+	nand->cmd_ctrl = nand_addr_hwcontrol;
+	nand->chip_delay = CONFIG_SYS_NAND_ACTL_DELAY;
+
+	return 0;
+}

u-boot/board/xes/common/board.c

@@ -0,0 +1,66 @@
+/*
+ * Copyright 2009 Extreme Engineering Solutions, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include "fsl_8xxx_misc.h"
+
+int checkboard(void)
+{
+	char name[] = CONFIG_SYS_BOARD_NAME;
+	char buf[64];
+	char *s;
+	int i;
+
+#ifdef CONFIG_SYS_FORM_CUSTOM
+	s = "Custom";
+#elif CONFIG_SYS_FORM_6U_CPCI
+	s = "6U CompactPCI";
+#elif CONFIG_SYS_FORM_ATCA_PMC
+	s = "ATCA w/PMC";
+#elif CONFIG_SYS_FORM_ATCA_AMC
+	s = "ATCA w/AMC";
+#elif CONFIG_SYS_FORM_VME
+	s = "VME";
+#elif CONFIG_SYS_FORM_6U_VPX
+	s = "6U VPX";
+#elif CONFIG_SYS_FORM_PMC
+	s = "PMC";
+#elif CONFIG_SYS_FORM_PCI
+	s = "PCI";
+#elif CONFIG_SYS_FORM_3U_CPCI
+	s = "3U CompactPCI";
+#elif CONFIG_SYS_FORM_AMC
+	s = "AdvancedMC";
+#elif CONFIG_SYS_FORM_XMC
+	s = "XMC";
+#elif CONFIG_SYS_FORM_PMC_XMC
+	s = "PMC/XMC";
+#elif CONFIG_SYS_FORM_PCI_EXPRESS
+	s = "PCI Express";
+#elif CONFIG_SYS_FORM_3U_VPX
+	s = "3U VPX";
+#else
+#error "Form factor not defined"
+#endif
+
+	name[strlen(name) - 1] += get_board_derivative();
+	printf("Board: X-ES %s %s SBC\n", name, s);
+
+	/* Display board specific information */
+	puts("       ");
+	i = getenv_f("board_rev", buf, sizeof(buf));
+	if (i > 0)
+		printf("Rev %s, ", buf);
+	i = getenv_f("serial#", buf, sizeof(buf));
+	if (i > 0)
+		printf("Serial# %s, ", buf);
+	i = getenv_f("board_cfg", buf, sizeof(buf));
+	if (i > 0)
+		printf("Cfg %s", buf);
+	puts("\n");
+
+	return 0;
+}

u-boot/board/xes/common/fsl_8xxx_clk.c

@@ -0,0 +1,54 @@
+/*
+ * Copyright 2008 Extreme Engineering Solutions, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+
+/*
+ * Return SYSCLK input frequency - 50 MHz or 66 MHz depending on POR config
+ */
+unsigned long get_board_sys_clk(ulong dummy)
+{
+#if defined(CONFIG_MPC85xx)
+	volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+#elif defined(CONFIG_MPC86xx)
+	immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
+	volatile ccsr_gur_t *gur = &immap->im_gur;
+#endif
+
+	if (in_be32(&gur->gpporcr) & 0x10000)
+		return 66666666;
+	else
+#ifdef CONFIG_P2020
+		return 100000000;
+#else
+		return 50000000;
+#endif
+}
+
+#ifdef CONFIG_MPC85xx
+/*
+ * Return DDR input clock - synchronous with SYSCLK or 66 MHz
+ * Note: 86xx doesn't support asynchronous DDR clk
+ */
+unsigned long get_board_ddr_clk(ulong dummy)
+{
+	volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+	u32 ddr_ratio = (in_be32(&gur->porpllsr) & 0x00003e00) >> 9;
+
+	if (ddr_ratio == 0x7)
+		return get_board_sys_clk(dummy);
+
+#ifdef CONFIG_P2020
+	if (in_be32(&gur->gpporcr) & 0x20000)
+		return 66666666;
+	else
+		return 100000000;
+#else
+	return 66666666;
+#endif
+}
+#endif

u-boot/board/xes/common/fsl_8xxx_misc.c

@@ -0,0 +1,44 @@
+/*
+ * Copyright 2008 Extreme Engineering Solutions, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/mmu.h>
+#ifdef CONFIG_PCA953X
+#include <pca953x.h>
+
+/*
+ * Determine if a board's flashes are write protected
+ */
+int board_flash_wp_on(void)
+{
+	if (pca953x_get_val(CONFIG_SYS_I2C_PCA953X_ADDR0) &
+			CONFIG_SYS_PCA953X_NVM_WP)
+		return 1;
+
+	return 0;
+}
+#endif
+
+/*
+ * Return a board's derivative model number.  For example:
+ * return 2 for the XPedite5372 and return 1 for the XPedite5201.
+ */
+uint get_board_derivative(void)
+{
+#if defined(CONFIG_MPC85xx)
+       volatile ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
+#elif defined(CONFIG_MPC86xx)
+       volatile immap_t *immap = (immap_t *)CONFIG_SYS_CCSRBAR;
+       volatile ccsr_gur_t *gur = &immap->im_gur;
+#endif
+
+       /*
+	* The top 4 lines of the local bus address are pulled low/high and
+	* can be read to determine the least significant digit of a board's
+	* model number.
+	*/
+       return gur->gpporcr >> 28;
+}

u-boot/board/xes/common/fsl_8xxx_misc.h

@@ -0,0 +1,12 @@
+/*
+ * Copyright 2008 Extreme Engineering Solutions, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __FSL_8XXX_MISC_H___
+#define __FSL_8XXX_MISC_H___
+
+uint get_board_derivative(void);
+
+#endif /* __FSL_8XXX_MISC_H__ */

u-boot/board/xes/common/fsl_8xxx_pci.c

@@ -0,0 +1,72 @@
+/*
+ * Copyright 2008 Extreme Engineering Solutions, Inc.
+ * Copyright 2007-2008 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <pci.h>
+#include <asm/fsl_pci.h>
+#include <asm/fsl_serdes.h>
+#include <asm/io.h>
+#include <linux/compiler.h>
+#include <libfdt.h>
+#include <fdt_support.h>
+
+
+#ifdef CONFIG_PCI1
+static struct pci_controller pci1_hose;
+#endif
+
+void pci_init_board(void)
+{
+	int first_free_busno = 0;
+
+#ifdef CONFIG_PCI1
+	int pcie_ep;
+	struct fsl_pci_info pci_info;
+	volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+	u32 devdisr = in_be32(&gur->devdisr);
+	uint pci_spd_norm = in_be32(&gur->pordevsr) & MPC85xx_PORDEVSR_PCI1_SPD;
+	uint pci_32 = in_be32(&gur->pordevsr) & MPC85xx_PORDEVSR_PCI1_PCI32;
+	uint pci_arb = in_be32(&gur->pordevsr) & MPC85xx_PORDEVSR_PCI1_ARB;
+	uint pcix = in_be32(&gur->pordevsr) & MPC85xx_PORDEVSR_PCI1;
+	uint freq = CONFIG_SYS_CLK_FREQ / 1000 / 1000;
+
+	if (!(devdisr & MPC85xx_DEVDISR_PCI1)) {
+		SET_STD_PCI_INFO(pci_info, 1);
+		set_next_law(pci_info.mem_phys,
+			law_size_bits(pci_info.mem_size), pci_info.law);
+		set_next_law(pci_info.io_phys,
+			law_size_bits(pci_info.io_size), pci_info.law);
+
+		pcie_ep = fsl_setup_hose(&pci1_hose, pci_info.regs);
+		printf("PCI1: %d bit %s, %s %d MHz, %s, %s\n",
+			pci_32 ? 32 : 64,
+			pcix ? "PCIX" : "PCI",
+			pci_spd_norm ? ">=" : "<=",
+			pcix ? freq * 2 : freq,
+			pcie_ep ? "agent" : "host",
+			pci_arb ? "arbiter" : "external-arbiter");
+
+		first_free_busno = fsl_pci_init_port(&pci_info,
+					&pci1_hose, first_free_busno);
+	} else {
+		printf("PCI1: disabled\n");
+	}
+#elif defined CONFIG_MPC8548
+	volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+	/* PCI1 not present on MPC8572 */
+	setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI1);
+#endif
+
+	fsl_pcie_init_board(first_free_busno);
+}
+
+#if defined(CONFIG_OF_BOARD_SETUP)
+void ft_board_pci_setup(void *blob, bd_t *bd)
+{
+	FT_FSL_PCI_SETUP;
+}
+#endif /* CONFIG_OF_BOARD_SETUP */