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/gdsys/p1022/Kconfig

@@ -0,0 +1,12 @@
+if TARGET_CONTROLCENTERD
+
+config SYS_BOARD
+	default "p1022"
+
+config SYS_VENDOR
+	default "gdsys"
+
+config SYS_CONFIG_NAME
+	default "controlcenterd"
+
+endif

u-boot/board/gdsys/p1022/MAINTAINERS

@@ -0,0 +1,9 @@
+P1022 BOARD
+M:	Dirk Eibach <eibach@gdsys.de>
+S:	Maintained
+F:	board/gdsys/p1022/
+F:	include/configs/controlcenterd.h
+F:	configs/controlcenterd_36BIT_SDCARD_defconfig
+F:	configs/controlcenterd_36BIT_SDCARD_DEVELOP_defconfig
+F:	configs/controlcenterd_TRAILBLAZER_defconfig
+F:	configs/controlcenterd_TRAILBLAZER_DEVELOP_defconfig

u-boot/board/gdsys/p1022/Makefile

@@ -0,0 +1,12 @@
+#
+# Copyright 2010 Freescale Semiconductor, Inc.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y	+= law.o
+obj-y	+= ddr.o
+obj-y	+= tlb.o
+obj-y	+= sdhc_boot.o
+obj-$(CONFIG_CONTROLCENTERD) += controlcenterd.o controlcenterd-id.o
+obj-$(CONFIG_FSL_DIU_FB) += diu.o

u-boot/board/gdsys/p1022/controlcenterd-id.h

@@ -0,0 +1,16 @@
+/*
+ * (C) Copyright 2013
+ * Reinhard Pfau, Guntermann & Drunck GmbH, reinhard.pfau@gdsys.cc
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __CONTROLCENTER_ID_H
+#define __CONTROLCENTER_ID_H
+
+int ccdm_compute_self_hash(void);
+int startup_ccdm_id_module(void);
+
+int show_self_hash(void);
+
+#endif /* __CONTROLCENTER_ID_H */

u-boot/board/gdsys/p1022/controlcenterd.c

@@ -0,0 +1,428 @@
+/*
+ * (C) Copyright 2013
+ * Dirk Eibach,  Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <command.h>
+#include <pci.h>
+#include <asm/processor.h>
+#include <asm/mmu.h>
+#include <asm/cache.h>
+#include <asm/immap_85xx.h>
+#include <asm/fsl_pci.h>
+#include <fsl_ddr_sdram.h>
+#include <asm/fsl_serdes.h>
+#include <asm/io.h>
+#include <libfdt.h>
+#include <fdt_support.h>
+#include <fsl_mdio.h>
+#include <tsec.h>
+#include <asm/fsl_law.h>
+#include <netdev.h>
+#include <i2c.h>
+#include <pca9698.h>
+#include <watchdog.h>
+#include "../common/dp501.h"
+#include "controlcenterd-id.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+enum {
+	HWVER_100 = 0,
+	HWVER_110 = 1,
+	HWVER_120 = 2,
+};
+
+struct ihs_fpga {
+	u32 reflection_low;	/* 0x0000 */
+	u32 versions;		/* 0x0004 */
+	u32 fpga_version;	/* 0x0008 */
+	u32 fpga_features;	/* 0x000c */
+	u32 reserved[4];	/* 0x0010 */
+	u32 control;		/* 0x0020 */
+};
+
+#ifndef CONFIG_TRAILBLAZER
+static struct pci_device_id hydra_supported[] = {
+	{ 0x6d5e, 0xcdc0 },
+	{}
+};
+
+static void hydra_initialize(void);
+#endif
+
+int board_early_init_f(void)
+{
+	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
+	ccsr_gpio_t *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO3_ADDR);
+
+	/* Reset eLBC_DIU and SPI_eLBC in case we are booting from SD */
+	clrsetbits_be32(&gur->pmuxcr, 0x00600000, 0x80000000);
+
+	/* Set pmuxcr to allow both i2c1 and i2c2 */
+	setbits_be32(&gur->pmuxcr, 0x00001000);
+
+	/* Set pmuxcr to enable GPIO 3_11-3_13 */
+	setbits_be32(&gur->pmuxcr, 0x00000010);
+
+	/* Set pmuxcr to enable GPIO 2_31,3_9+10 */
+	setbits_be32(&gur->pmuxcr, 0x00000020);
+
+	/* Set pmuxcr to enable GPIO 2_28-2_30 */
+	setbits_be32(&gur->pmuxcr, 0x000000c0);
+
+	/* Set pmuxcr to enable GPIO 3_20-3_22 */
+	setbits_be32(&gur->pmuxcr2, 0x03000000);
+
+	/* Set pmuxcr to enable IRQ0-2 */
+	clrbits_be32(&gur->pmuxcr, 0x00000300);
+
+	/* Set pmuxcr to disable IRQ3-11 */
+	setbits_be32(&gur->pmuxcr, 0x000000F0);
+
+	/* Read back the register to synchronize the write. */
+	in_be32(&gur->pmuxcr);
+
+	/* Set the pin muxing to enable ETSEC2. */
+	clrbits_be32(&gur->pmuxcr2, 0x001F8000);
+
+#ifdef CONFIG_TRAILBLAZER
+	/*
+	 * GPIO3_10 SPERRTRIGGER
+	 */
+	setbits_be32(&pgpio->gpdir, 0x00200000);
+	clrbits_be32(&pgpio->gpdat, 0x00200000);
+	udelay(100);
+	setbits_be32(&pgpio->gpdat, 0x00200000);
+	udelay(100);
+	clrbits_be32(&pgpio->gpdat, 0x00200000);
+#endif
+
+	/*
+	 * GPIO3_11 CPU-TO-FPGA-RESET#
+	 */
+	setbits_be32(&pgpio->gpdir, 0x00100000);
+	clrbits_be32(&pgpio->gpdat, 0x00100000);
+
+	/*
+	 * GPIO3_21 CPU-STATUS-WATCHDOG-TRIGGER#
+	 */
+	setbits_be32(&pgpio->gpdir, 0x00000400);
+
+	return 0;
+}
+
+int checkboard(void)
+{
+	printf("Board: ControlCenter DIGITAL\n");
+
+	return 0;
+}
+
+int misc_init_r(void)
+{
+	return 0;
+}
+
+/*
+ * A list of PCI and SATA slots
+ */
+enum slot_id {
+	SLOT_PCIE1 = 1,
+	SLOT_PCIE2,
+	SLOT_PCIE3,
+	SLOT_PCIE4,
+	SLOT_PCIE5,
+	SLOT_SATA1,
+	SLOT_SATA2
+};
+
+/*
+ * This array maps the slot identifiers to their names on the P1022DS board.
+ */
+static const char * const slot_names[] = {
+	[SLOT_PCIE1] = "Slot 1",
+	[SLOT_PCIE2] = "Slot 2",
+	[SLOT_PCIE3] = "Slot 3",
+	[SLOT_PCIE4] = "Slot 4",
+	[SLOT_PCIE5] = "Mini-PCIe",
+	[SLOT_SATA1] = "SATA 1",
+	[SLOT_SATA2] = "SATA 2",
+};
+
+/*
+ * This array maps a given SERDES configuration and SERDES device to the PCI or
+ * SATA slot that it connects to.  This mapping is hard-coded in the FPGA.
+ */
+static u8 serdes_dev_slot[][SATA2 + 1] = {
+	[0x01] = { [PCIE3] = SLOT_PCIE4, [PCIE2] = SLOT_PCIE5 },
+	[0x02] = { [SATA1] = SLOT_SATA1, [SATA2] = SLOT_SATA2 },
+	[0x09] = { [PCIE1] = SLOT_PCIE1, [PCIE3] = SLOT_PCIE4,
+		   [PCIE2] = SLOT_PCIE5 },
+	[0x16] = { [PCIE1] = SLOT_PCIE1, [PCIE3] = SLOT_PCIE2,
+		   [PCIE2] = SLOT_PCIE3,
+		   [SATA1] = SLOT_SATA1, [SATA2] = SLOT_SATA2 },
+	[0x17] = { [PCIE1] = SLOT_PCIE1, [PCIE3] = SLOT_PCIE2,
+		   [PCIE2] = SLOT_PCIE3 },
+	[0x1a] = { [PCIE1] = SLOT_PCIE1, [PCIE2] = SLOT_PCIE3,
+		   [PCIE2] = SLOT_PCIE3,
+		   [SATA1] = SLOT_SATA1, [SATA2] = SLOT_SATA2 },
+	[0x1c] = { [PCIE1] = SLOT_PCIE1,
+		   [SATA1] = SLOT_SATA1, [SATA2] = SLOT_SATA2 },
+	[0x1e] = { [PCIE1] = SLOT_PCIE1, [PCIE3] = SLOT_PCIE3 },
+	[0x1f] = { [PCIE1] = SLOT_PCIE1 },
+};
+
+
+/*
+ * Returns the name of the slot to which the PCIe or SATA controller is
+ * connected
+ */
+const char *board_serdes_name(enum srds_prtcl device)
+{
+	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
+	u32 pordevsr = in_be32(&gur->pordevsr);
+	unsigned int srds_cfg = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >>
+				MPC85xx_PORDEVSR_IO_SEL_SHIFT;
+	enum slot_id slot = serdes_dev_slot[srds_cfg][device];
+	const char *name = slot_names[slot];
+
+	if (name)
+		return name;
+	else
+		return "Nothing";
+}
+
+void hw_watchdog_reset(void)
+{
+	ccsr_gpio_t *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO3_ADDR);
+
+	clrbits_be32(&pgpio->gpdat, 0x00000400);
+	setbits_be32(&pgpio->gpdat, 0x00000400);
+}
+
+#ifdef CONFIG_TRAILBLAZER
+int do_bootd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	return run_command(getenv("bootcmd"), flag);
+}
+
+int board_early_init_r(void)
+{
+	ccsr_gpio_t *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO3_ADDR);
+
+	/*
+	 * GPIO3_12 PPC_SYSTEMREADY#
+	 */
+	setbits_be32(&pgpio->gpdir, 0x00080000);
+	setbits_be32(&pgpio->gpodr, 0x00080000);
+	clrbits_be32(&pgpio->gpdat, 0x00080000);
+
+	return ccdm_compute_self_hash();
+}
+
+int last_stage_init(void)
+{
+	startup_ccdm_id_module();
+	return 0;
+}
+
+#else
+void pci_init_board(void)
+{
+	fsl_pcie_init_board(0);
+
+	hydra_initialize();
+}
+
+int board_early_init_r(void)
+{
+	unsigned int k = 0;
+	ccsr_gpio_t *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO3_ADDR);
+
+	/* wait for FPGA configuration to finish */
+	while (!pca9698_get_value(0x22, 11) && (k++ < 30))
+		udelay(100000);
+
+	if (k > 30) {
+		puts("FPGA configuration timed out.\n");
+	} else {
+		/* clear FPGA reset */
+		udelay(1000);
+		setbits_be32(&pgpio->gpdat, 0x00100000);
+	}
+
+	/* give time for PCIe link training */
+	udelay(100000);
+
+	/*
+	 * GPIO3_12 PPC_SYSTEMREADY#
+	 */
+	setbits_be32(&pgpio->gpdir, 0x00080000);
+	setbits_be32(&pgpio->gpodr, 0x00080000);
+	clrbits_be32(&pgpio->gpdat, 0x00080000);
+
+	return 0;
+}
+
+int last_stage_init(void)
+{
+	/* Turn on Parade DP501 */
+	pca9698_direction_output(0x22, 7, 1);
+	udelay(500000);
+
+	dp501_powerup(0x08);
+
+	startup_ccdm_id_module();
+
+	return 0;
+}
+
+/*
+ * Initialize on-board and/or PCI Ethernet devices
+ *
+ * Returns:
+ *      <0, error
+ *       0, no ethernet devices found
+ *      >0, number of ethernet devices initialized
+ */
+int board_eth_init(bd_t *bis)
+{
+	struct fsl_pq_mdio_info mdio_info;
+	struct tsec_info_struct tsec_info[2];
+	unsigned int num = 0;
+
+#ifdef CONFIG_TSEC1
+	SET_STD_TSEC_INFO(tsec_info[num], 1);
+	num++;
+#endif
+#ifdef CONFIG_TSEC2
+	SET_STD_TSEC_INFO(tsec_info[num], 2);
+	num++;
+#endif
+
+	mdio_info.regs = (struct tsec_mii_mng *)CONFIG_SYS_MDIO_BASE_ADDR;
+	mdio_info.name = DEFAULT_MII_NAME;
+	fsl_pq_mdio_init(bis, &mdio_info);
+
+	return tsec_eth_init(bis, tsec_info, num) + pci_eth_init(bis);
+}
+
+#ifdef CONFIG_OF_BOARD_SETUP
+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_HAS_FSL_DR_USB
+	fdt_fixup_dr_usb(blob, bd);
+#endif
+
+	FT_FSL_PCI_SETUP;
+
+	return 0;
+}
+#endif
+
+static void hydra_initialize(void)
+{
+	unsigned int i;
+	pci_dev_t devno;
+
+	/* Find and probe all the matching PCI devices */
+	for (i = 0; (devno = pci_find_devices(hydra_supported, i)) >= 0; i++) {
+		u32 val;
+		struct ihs_fpga *fpga;
+		u32 versions;
+		u32 fpga_version;
+		u32 fpga_features;
+
+		unsigned hardware_version;
+		unsigned feature_uart_channels;
+		unsigned feature_sb_channels;
+
+		/* Try to enable I/O accesses and bus-mastering */
+		val = PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER;
+		pci_write_config_dword(devno, PCI_COMMAND, val);
+
+		/* Make sure it worked */
+		pci_read_config_dword(devno, PCI_COMMAND, &val);
+		if (!(val & PCI_COMMAND_MEMORY)) {
+			puts("Can't enable I/O memory\n");
+			continue;
+		}
+		if (!(val & PCI_COMMAND_MASTER)) {
+			puts("Can't enable bus-mastering\n");
+			continue;
+		}
+
+		/* read FPGA details */
+		fpga = pci_map_bar(devno, PCI_BASE_ADDRESS_0,
+			PCI_REGION_MEM);
+
+		/* disable sideband clocks */
+		writel(1, &fpga->control);
+
+		versions = readl(&fpga->versions);
+		fpga_version = readl(&fpga->fpga_version);
+		fpga_features = readl(&fpga->fpga_features);
+
+		hardware_version = versions & 0xf;
+		feature_uart_channels = (fpga_features >> 6) & 0x1f;
+		feature_sb_channels = fpga_features & 0x1f;
+
+		printf("FPGA%d: ", i);
+
+		switch (hardware_version) {
+		case HWVER_100:
+			printf("HW-Ver 1.00\n");
+			break;
+
+		case HWVER_110:
+			printf("HW-Ver 1.10\n");
+			break;
+
+		case HWVER_120:
+			printf("HW-Ver 1.20\n");
+			break;
+
+		default:
+			printf("HW-Ver %d(not supported)\n",
+			       hardware_version);
+			break;
+		}
+
+		printf("       FPGA V %d.%02d, features:",
+		       fpga_version / 100, fpga_version % 100);
+
+		printf(" %d uart channel(s)", feature_uart_channels);
+		printf(" %d sideband channel(s)\n", feature_sb_channels);
+	}
+}
+#endif

u-boot/board/gdsys/p1022/ddr.c

@@ -0,0 +1,68 @@
+/*
+ * Copyright 2010 Freescale Semiconductor, Inc.
+ * Authors: Srikanth Srinivasan <srikanth.srinivasan@freescale.com>
+ *          Timur Tabi <timur@freescale.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <i2c.h>
+
+#include <fsl_ddr_sdram.h>
+#include <fsl_ddr_dimm_params.h>
+
+void fsl_ddr_board_options(memctl_options_t *popts, dimm_params_t *pdimm,
+			   unsigned int ctrl_num)
+{
+	unsigned int i;
+
+	if (ctrl_num) {
+		printf("Wrong parameter for controller number %d", ctrl_num);
+		return;
+	}
+	if (!pdimm->n_ranks)
+		return;
+
+	/* set odt_rd_cfg and odt_wr_cfg. */
+	for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) {
+		popts->cs_local_opts[i].odt_rd_cfg = 0;
+		popts->cs_local_opts[i].odt_wr_cfg = 1;
+	}
+
+	popts->clk_adjust = 5;
+	popts->cpo_override = 0x1f;
+	popts->write_data_delay = 2;
+	popts->half_strength_driver_enable = 1;
+
+	/* Per AN4039, enable ZQ calibration. */
+	popts->zq_en = 1;
+}
+
+#ifdef CONFIG_SPD_EEPROM
+/*
+ * we only have a "fake" SPD-EEPROM here, which has 16 bit addresses
+ */
+void get_spd(generic_spd_eeprom_t *spd, u8 i2c_address)
+{
+	int ret = i2c_read(i2c_address, 0, 2, (uchar *)spd,
+				sizeof(generic_spd_eeprom_t));
+
+	if (ret) {
+		if (i2c_address ==
+#ifdef SPD_EEPROM_ADDRESS
+				SPD_EEPROM_ADDRESS
+#elif defined(SPD_EEPROM_ADDRESS1)
+				SPD_EEPROM_ADDRESS1
+#endif
+				) {
+			printf("DDR: failed to read SPD from address %u\n",
+			       i2c_address);
+		} else {
+			debug("DDR: failed to read SPD from address %u\n",
+			      i2c_address);
+		}
+		memset(spd, 0, sizeof(generic_spd_eeprom_t));
+	}
+}
+#endif

u-boot/board/gdsys/p1022/diu.c

@@ -0,0 +1,84 @@
+/*
+ * Copyright 2010-2011 Freescale Semiconductor, Inc.
+ * Authors: Timur Tabi <timur@freescale.com>
+ *
+ * FSL DIU Framebuffer driver
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+#include <linux/ctype.h>
+#include <asm/io.h>
+#include <stdio_dev.h>
+#include <video_fb.h>
+#include <fsl_diu_fb.h>
+
+#define PMUXCR_ELBCDIU_MASK	0xc0000000
+#define PMUXCR_ELBCDIU_NOR16	0x80000000
+#define PMUXCR_ELBCDIU_DIU	0x40000000
+
+/*
+ * DIU Area Descriptor
+ *
+ * Note that we need to byte-swap the value before it's written to the AD
+ * register.  So even though the registers don't look like they're in the same
+ * bit positions as they are on the MPC8610, the same value is written to the
+ * AD register on the MPC8610 and on the P1022.
+ */
+#define AD_BYTE_F		0x10000000
+#define AD_ALPHA_C_SHIFT	25
+#define AD_BLUE_C_SHIFT		23
+#define AD_GREEN_C_SHIFT	21
+#define AD_RED_C_SHIFT		19
+#define AD_PIXEL_S_SHIFT	16
+#define AD_COMP_3_SHIFT		12
+#define AD_COMP_2_SHIFT		8
+#define AD_COMP_1_SHIFT		4
+#define AD_COMP_0_SHIFT		0
+
+/*
+ * Variables used by the DIU/LBC switching code.  It's safe to makes these
+ * global, because the DIU requires DDR, so we'll only run this code after
+ * relocation.
+ */
+static u32 pmuxcr;
+
+void diu_set_pixel_clock(unsigned int pixclock)
+{
+	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+	unsigned long speed_ccb, temp;
+	u32 pixval;
+
+	speed_ccb = get_bus_freq(0);
+	temp = 1000000000 / pixclock;
+	temp *= 1000;
+	pixval = speed_ccb / temp;
+	debug("DIU pixval = %u\n", pixval);
+
+	/* Modify PXCLK in GUTS CLKDVDR */
+	temp = in_be32(&gur->clkdvdr) & 0x2000FFFF;
+	out_be32(&gur->clkdvdr, temp);			/* turn off clock */
+	out_be32(&gur->clkdvdr, temp | 0x80000000 | ((pixval & 0x1F) << 16));
+}
+
+int platform_diu_init(unsigned int xres, unsigned int yres, const char *port)
+{
+	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+	u32 pixel_format;
+
+	pixel_format = cpu_to_le32(AD_BYTE_F | (3 << AD_ALPHA_C_SHIFT) |
+		(0 << AD_BLUE_C_SHIFT) | (1 << AD_GREEN_C_SHIFT) |
+		(2 << AD_RED_C_SHIFT) | (8 << AD_COMP_3_SHIFT) |
+		(8 << AD_COMP_2_SHIFT) | (8 << AD_COMP_1_SHIFT) |
+		(8 << AD_COMP_0_SHIFT) | (3 << AD_PIXEL_S_SHIFT));
+
+	printf("DIU:   Switching to %ux%u\n", xres, yres);
+
+	/* Set PMUXCR to switch the muxed pins from the LBC to the DIU */
+	clrsetbits_be32(&gur->pmuxcr, PMUXCR_ELBCDIU_MASK, PMUXCR_ELBCDIU_DIU);
+	pmuxcr = in_be32(&gur->pmuxcr);
+
+	return fsl_diu_init(xres, yres, pixel_format, 0);
+}

u-boot/board/gdsys/p1022/law.c

@@ -0,0 +1,17 @@
+/*
+ * Copyright 2010 Freescale Semiconductor, Inc.
+ * Authors: Srikanth Srinivasan <srikanth.srinivasan@freescale.com>
+ *          Timur Tabi <timur@freescale.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/fsl_law.h>
+#include <asm/mmu.h>
+
+struct law_entry law_table[] = {
+	SET_LAW(CONFIG_SYS_ELBC_BASE_PHYS, LAW_SIZE_1M, LAW_TRGT_IF_LBC),
+};
+
+int num_law_entries = ARRAY_SIZE(law_table);

u-boot/board/gdsys/p1022/sdhc_boot.c

@@ -0,0 +1,63 @@
+/*
+ * Copyright 2011 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <mmc.h>
+#include <malloc.h>
+
+/*
+ * The environment variables are written to just after the u-boot image
+ * on SDCard, so we must read the MBR to get the start address and code
+ * length of the u-boot image, then calculate the address of the env.
+ */
+#define ESDHC_BOOT_IMAGE_SIZE	0x48
+#define ESDHC_BOOT_IMAGE_ADDR	0x50
+
+int mmc_get_env_addr(struct mmc *mmc, int copy, u32 *env_addr)
+{
+	u8 *tmp_buf;
+	u32 blklen, code_offset, code_len, n;
+
+	blklen = mmc->read_bl_len;
+	tmp_buf = malloc(blklen);
+	if (!tmp_buf)
+		return 1;
+
+	/* read out the first block, get the config data information */
+	n = mmc->block_dev.block_read(&mmc->block_dev, 0, 1, tmp_buf);
+	if (!n) {
+		free(tmp_buf);
+		return 1;
+	}
+
+	/* Get the Source Address, from offset 0x50 */
+	code_offset = *(u32 *)(tmp_buf + ESDHC_BOOT_IMAGE_ADDR);
+
+	/* Get the code size from offset 0x48 */
+	code_len = *(u32 *)(tmp_buf + ESDHC_BOOT_IMAGE_SIZE);
+
+	*env_addr = code_offset + code_len;
+
+	free(tmp_buf);
+
+	return 0;
+}

u-boot/board/gdsys/p1022/tlb.c

@@ -0,0 +1,74 @@
+/*
+ * Copyright 2010 Freescale Semiconductor, Inc.
+ * Authors: Srikanth Srinivasan <srikanth.srinivasan@freescale.com>
+ *          Timur Tabi <timur@freescale.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/mmu.h>
+
+struct fsl_e_tlb_entry tlb_table[] = {
+	/* TLB 0 - for temp stack in cache */
+	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR, CONFIG_SYS_INIT_RAM_ADDR,
+		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
+		      0, 0, BOOKE_PAGESZ_4K, 0),
+	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 4 * 1024,
+		      CONFIG_SYS_INIT_RAM_ADDR + 4 * 1024,
+		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
+		      0, 0, BOOKE_PAGESZ_4K, 0),
+	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 8 * 1024,
+		      CONFIG_SYS_INIT_RAM_ADDR + 8 * 1024,
+		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
+		      0, 0, BOOKE_PAGESZ_4K, 0),
+	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 12 * 1024,
+		      CONFIG_SYS_INIT_RAM_ADDR + 12 * 1024,
+		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
+		      0, 0, BOOKE_PAGESZ_4K, 0),
+
+	/* TLB 1 */
+	/* *I*** - Covers boot page */
+	SET_TLB_ENTRY(1, 0xfffff000, 0xfffff000,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I,
+		      0, 0, BOOKE_PAGESZ_4K, 1),
+
+	/* *I*G* - CCSRBAR */
+	SET_TLB_ENTRY(1, CONFIG_SYS_CCSRBAR, CONFIG_SYS_CCSRBAR_PHYS,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 1, BOOKE_PAGESZ_1M, 1),
+
+	/* *I*G* - eLBC */
+	SET_TLB_ENTRY(1, CONFIG_SYS_ELBC_BASE, CONFIG_SYS_ELBC_BASE_PHYS,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 2, BOOKE_PAGESZ_1M, 1),
+
+#if defined(CONFIG_TRAILBLAZER)
+	/* *I*G - L2SRAM */
+	SET_TLB_ENTRY(1, CONFIG_SYS_INIT_L2_ADDR, CONFIG_SYS_INIT_L2_ADDR_PHYS,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 9, BOOKE_PAGESZ_256K, 1),
+#else
+	/* *I*G* - PCI */
+	SET_TLB_ENTRY(1, CONFIG_SYS_PCIE1_MEM_VIRT, CONFIG_SYS_PCIE1_MEM_PHYS,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 3, BOOKE_PAGESZ_256M, 1),
+	SET_TLB_ENTRY(1, CONFIG_SYS_PCIE1_MEM_VIRT + 0x10000000,
+		      CONFIG_SYS_PCIE1_MEM_PHYS + 0x10000000,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 4, BOOKE_PAGESZ_256M, 1),
+
+	/* *I*G* - PCI I/O */
+	SET_TLB_ENTRY(1, CONFIG_SYS_PCIE1_IO_VIRT, CONFIG_SYS_PCIE1_IO_PHYS,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 5, BOOKE_PAGESZ_256K, 1),
+
+#ifdef CONFIG_SYS_RAMBOOT
+	SET_TLB_ENTRY(1, CONFIG_SYS_DDR_SDRAM_BASE, CONFIG_SYS_DDR_SDRAM_BASE,
+		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
+		      0, 6, BOOKE_PAGESZ_1G, 1),
+#endif
+#endif
+};
+
+int num_tlb_entries = ARRAY_SIZE(tlb_table);