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/Synology/ds414/Makefile

@@ -0,0 +1,10 @@
+#
+# Copyright (C) 2015 Phil Sutter <phil@nwl.cc>
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y	+= ds414.o
+ifndef CONFIG_SPL_BUILD
+obj-y	+= cmd_syno.o
+endif

u-boot/board/Synology/ds414/cmd_syno.c

@@ -0,0 +1,227 @@
+/*
+ * Commands to deal with Synology specifics.
+ *
+ * Copyright (C) 2015  Phil Sutter <phil@nwl.cc>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <div64.h>
+#include <spi.h>
+#include <spi_flash.h>
+#include <linux/mtd/mtd.h>
+
+#include <asm/io.h>
+#include "../drivers/ddr/marvell/axp/ddr3_init.h"
+
+#define ETH_ALEN		6
+#define ETHADDR_MAX		4
+#define SYNO_SN_TAG		"SN="
+#define SYNO_CHKSUM_TAG		"CHK="
+
+
+static int do_syno_populate(int argc, char * const argv[])
+{
+	unsigned int bus = CONFIG_SF_DEFAULT_BUS;
+	unsigned int cs = CONFIG_SF_DEFAULT_CS;
+	unsigned int speed = CONFIG_SF_DEFAULT_SPEED;
+	unsigned int mode = CONFIG_SF_DEFAULT_MODE;
+	struct spi_flash *flash;
+	unsigned long addr = 0x80000; /* XXX: parameterize this? */
+	loff_t offset = 0x007d0000;
+	loff_t len = 0x00010000;
+	char *buf, *bufp;
+	char var[128];
+	char val[128];
+	int ret, n;
+
+	/* XXX: arg parsing to select flash here? */
+
+	flash = spi_flash_probe(bus, cs, speed, mode);
+	if (!flash) {
+		printf("Failed to initialize SPI flash at %u:%u\n", bus, cs);
+		return 1;
+	}
+
+	buf = map_physmem(addr, len, MAP_WRBACK);
+	if (!buf) {
+		puts("Failed to map physical memory\n");
+		return 1;
+	}
+
+	ret = spi_flash_read(flash, offset, len, buf);
+	if (ret) {
+		puts("Failed to read from SPI flash\n");
+		goto out_unmap;
+	}
+
+	for (n = 0; n < ETHADDR_MAX; n++) {
+		char ethaddr[ETH_ALEN];
+		int i, sum = 0;
+		unsigned char csum = 0;
+
+		for (i = 0, bufp = buf + n * 7; i < ETH_ALEN; i++) {
+			sum += bufp[i];
+			csum += bufp[i];
+			ethaddr[i] = bufp[i];
+		}
+		if (!sum)		/* MAC address empty */
+			continue;
+		if (csum != bufp[i]) {	/* seventh byte is checksum value */
+			printf("Invalid MAC address for interface %d!\n", n);
+			continue;
+		}
+		if (n == 0)
+			sprintf(var, "ethaddr");
+		else
+			sprintf(var, "eth%daddr", n);
+		snprintf(val, sizeof(val) - 1,
+		         "%02x:%02x:%02x:%02x:%02x:%02x",
+		         ethaddr[0], ethaddr[1], ethaddr[2],
+			 ethaddr[3], ethaddr[4], ethaddr[5]);
+		printf("parsed %s = %s\n", var, val);
+		setenv(var, val);
+	}
+	if (!strncmp(buf + 32, SYNO_SN_TAG, strlen(SYNO_SN_TAG))) {
+		char *snp, *csump;
+		int csum = 0;
+		unsigned long c;
+
+		snp = bufp = buf + 32 + strlen(SYNO_SN_TAG);
+		for (n = 0; bufp[n] && bufp[n] != ','; n++)
+			csum += bufp[n];
+		bufp[n] = '\0';
+
+		/* should come right after, but you never know */
+		bufp = strstr(bufp + n + 1, SYNO_CHKSUM_TAG);
+		if (!bufp) {
+			printf("Serial number checksum tag missing!\n");
+			goto out_unmap;
+		}
+
+		csump = bufp += strlen(SYNO_CHKSUM_TAG);
+		for (n = 0; bufp[n] && bufp[n] != ','; n++)
+			;
+		bufp[n] = '\0';
+
+		if (strict_strtoul(csump, 10, &c) || c != csum) {
+			puts("Invalid serial number found!\n");
+			ret = 1;
+			goto out_unmap;
+		}
+		printf("parsed SN = %s\n", snp);
+		setenv("SN", snp);
+	} else {	/* old style format */
+		unsigned char csum = 0;
+
+		for (n = 0, bufp = buf + 32; n < 10; n++)
+			csum += bufp[n];
+
+		if (csum != bufp[n]) {
+			puts("Invalid serial number found!\n");
+			ret = 1;
+			goto out_unmap;
+		}
+		bufp[n] = '\0';
+		printf("parsed SN = %s\n", buf + 32);
+		setenv("SN", buf + 32);
+	}
+out_unmap:
+	unmap_physmem(buf, len);
+	return ret;
+}
+
+/* map bit position to function in POWER_MNG_CTRL_REG */
+static const char * const pwr_mng_bit_func[] = {
+	"audio",
+	"ge3", "ge2", "ge1", "ge0",
+	"pcie00", "pcie01", "pcie02", "pcie03",
+	"pcie10", "pcie11", "pcie12", "pcie13",
+	"bp",
+	"sata0_link", "sata0_core",
+	"lcd",
+	"sdio",
+	"usb0", "usb1", "usb2",
+	"idma", "xor0", "crypto",
+	NULL,
+	"tdm",
+	"pcie20", "pcie30",
+	"xor1",
+	"sata1_link", "sata1_core",
+	NULL,
+};
+
+static int do_syno_clk_gate(int argc, char * const argv[])
+{
+	u32 pwr_mng_ctrl_reg = reg_read(POWER_MNG_CTRL_REG);
+	const char *func, *state;
+	int i, val;
+
+	if (argc < 2)
+		return -1;
+
+	if (!strcmp(argv[1], "get")) {
+		puts("Clock Gating:\n");
+		for (i = 0; i < 32; i++) {
+			func = pwr_mng_bit_func[i];
+			if (!func)
+				continue;
+			state = pwr_mng_ctrl_reg & (1 << i) ?  "ON" : "OFF";
+			printf("%s:\t\t%s\n", func, state);
+		}
+		return 0;
+	}
+	if (argc < 4)
+		return -1;
+	if (!strcmp(argv[1], "set")) {
+		func = argv[2];
+		state = argv[3];
+		for (i = 0; i < 32; i++) {
+			if (!pwr_mng_bit_func[i])
+				continue;
+			if (!strcmp(func, pwr_mng_bit_func[i]))
+				break;
+		}
+		if (i == 32) {
+			printf("Error: name '%s' not known\n", func);
+			return -1;
+		}
+		val = state[0] != '0';
+		pwr_mng_ctrl_reg |= (val << i);
+		pwr_mng_ctrl_reg &= ~(!val << i);
+		reg_write(POWER_MNG_CTRL_REG, pwr_mng_ctrl_reg);
+	}
+	return 0;
+}
+
+static int do_syno(cmd_tbl_t *cmdtp, int flag,
+                   int argc, char * const argv[])
+{
+	const char *cmd;
+	int ret = 0;
+
+	if (argc < 2)
+		goto usage;
+
+	cmd = argv[1];
+	--argc;
+	++argv;
+
+	if (!strcmp(cmd, "populate_env"))
+		ret = do_syno_populate(argc, argv);
+	else if (!strcmp(cmd, "clk_gate"))
+		ret = do_syno_clk_gate(argc, argv);
+
+	if (ret != -1)
+		return ret;
+usage:
+	return CMD_RET_USAGE;
+}
+
+U_BOOT_CMD(
+	syno, 5, 1, do_syno,
+	"Synology specific commands",
+	"populate_env                 - Read vendor data from SPI flash into environment\n"
+	"clk_gate (get|set name 1|0)  - Manage clock gating\n"
+);

u-boot/board/Synology/ds414/ds414.c

@@ -0,0 +1,185 @@
+/*
+ *
+ * Copyright (C) 2015 Phil Sutter <phil@nwl.cc>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <miiphy.h>
+#include <asm/io.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/soc.h>
+#include <linux/mbus.h>
+
+#include "../drivers/ddr/marvell/axp/ddr3_hw_training.h"
+#include "../arch/arm/mach-mvebu/serdes/axp/high_speed_env_spec.h"
+#include "../arch/arm/mach-mvebu/serdes/axp/board_env_spec.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* GPP and MPP settings as found in mvBoardEnvSpec.c of Synology's U-Boot */
+
+#define DS414_GPP_OUT_VAL_LOW		(BIT(25) | BIT(30))
+#define DS414_GPP_OUT_VAL_MID		(BIT(10) | BIT(15))
+#define DS414_GPP_OUT_VAL_HIGH		(0)
+
+#define DS414_GPP_OUT_POL_LOW		(0)
+#define DS414_GPP_OUT_POL_MID		(0)
+#define DS414_GPP_OUT_POL_HIGH		(0)
+
+#define DS414_GPP_OUT_ENA_LOW		(~(BIT(25) | BIT(30)))
+#define DS414_GPP_OUT_ENA_MID		(~(BIT(10) | BIT(12) | \
+					   BIT(13) | BIT(14) | BIT(15)))
+#define DS414_GPP_OUT_ENA_HIGH		(~0)
+
+static const u32 ds414_mpp_control[] = {
+	0x11111111,
+	0x22221111,
+	0x22222222,
+	0x00000000,
+	0x11110000,
+	0x00004000,
+	0x00000000,
+	0x00000000,
+	0x00000000
+};
+
+/* DDR3 static MC configuration */
+
+/* 1G_v1 (4x2Gbits) adapted by DS414 */
+MV_DRAM_MC_INIT syno_ddr3_b0_667_1g_v1[MV_MAX_DDR3_STATIC_SIZE] = {
+	{0x00001400, 0x73014A28},	/*DDR SDRAM Configuration Register */
+	{0x00001404, 0x30000800},	/*Dunit Control Low Register */
+	{0x00001408, 0x44148887},	/*DDR SDRAM Timing (Low) Register */
+	{0x0000140C, 0x3AD83FEA},	/*DDR SDRAM Timing (High) Register */
+
+	{0x00001410, 0x14000000},	/*DDR SDRAM Address Control Register */
+
+	{0x00001414, 0x00000000},	/*DDR SDRAM Open Pages Control Register */
+	{0x00001418, 0x00000e00},	/*DDR SDRAM Operation Register */
+	{0x00001420, 0x00000004},	/*DDR SDRAM Extended Mode Register */
+	{0x00001424, 0x0000F3FF},	/*Dunit Control High Register */
+	{0x00001428, 0x000F8830},	/*Dunit Control High Register */
+	{0x0000142C, 0x054C36F4},	/*Dunit Control High Register */
+	{0x0000147C, 0x0000C671},
+
+	{0x000014a0, 0x00000001},
+	{0x000014a8, 0x00000100},	/*2:1 */
+	{0x00020220, 0x00000006},
+
+	{0x00001494, 0x00010000},	/*DDR SDRAM ODT Control (Low) Register */
+	{0x00001498, 0x00000000},	/*DDR SDRAM ODT Control (High) Register */
+	{0x0000149C, 0x00000001},	/*DDR Dunit ODT Control Register */
+
+	{0x000014C0, 0x192424C9},	/* DRAM address and Control Driving Strenght  */
+	{0x000014C4, 0x0AAA24C9},	/* DRAM Data and DQS Driving Strenght  */
+
+	{0x000200e8, 0x3FFF0E01},	/* DO NOT Modify - Open Mbus Window - 2G - Mbus is required for the training sequence*/
+	{0x00020184, 0x3FFFFFE0},	/* DO NOT Modify - Close fast path Window to - 2G */
+
+	{0x0001504, 0x3FFFFFE1},	/* CS0 Size */
+	{0x000150C, 0x00000000},	/* CS1 Size */
+	{0x0001514, 0x00000000},	/* CS2 Size */
+	{0x000151C, 0x00000000},	/* CS3 Size */
+
+	{0x00001538, 0x00000009},	/*Read Data Sample Delays Register */
+	{0x0000153C, 0x00000009},	/*Read Data Ready Delay Register */
+
+	{0x000015D0, 0x00000650},	/*MR0 */
+	{0x000015D4, 0x00000044},	/*MR1 */
+	{0x000015D8, 0x00000010},	/*MR2 */
+	{0x000015DC, 0x00000000},	/*MR3 */
+
+	{0x000015E4, 0x00203c18},	/*ZQC Configuration Register */
+	{0x000015EC, 0xF800A225},	/*DDR PHY */
+
+	{0x0, 0x0}
+};
+
+MV_DRAM_MODES ds414_ddr_modes[MV_DDR3_MODES_NUMBER] = {
+	{"ds414_1333-667",   0x3, 0x5, 0x0, A0, syno_ddr3_b0_667_1g_v1,  NULL},
+};
+
+extern MV_SERDES_CHANGE_M_PHY serdes_change_m_phy[];
+
+MV_BIN_SERDES_CFG ds414_serdes_cfg[] = {
+	{ MV_PEX_ROOT_COMPLEX, 0x02011111, 0x00000000,
+	  { PEX_BUS_MODE_X4, PEX_BUS_MODE_X1, PEX_BUS_DISABLED,
+	    PEX_BUS_DISABLED },
+	  0x0040, serdes_change_m_phy
+	}
+};
+
+MV_DRAM_MODES *ddr3_get_static_ddr_mode(void)
+{
+	return &ds414_ddr_modes[0];
+}
+
+MV_BIN_SERDES_CFG *board_serdes_cfg_get(u8 pex_mode)
+{
+	return &ds414_serdes_cfg[0];
+}
+
+u8 board_sat_r_get(u8 dev_num, u8 reg)
+{
+	return (0x1 << 1 | 1);
+}
+
+int board_early_init_f(void)
+{
+	int i;
+
+	/* Set GPP Out value */
+	reg_write(GPP_DATA_OUT_REG(0), DS414_GPP_OUT_VAL_LOW);
+	reg_write(GPP_DATA_OUT_REG(1), DS414_GPP_OUT_VAL_MID);
+	reg_write(GPP_DATA_OUT_REG(2), DS414_GPP_OUT_VAL_HIGH);
+
+	/* set GPP polarity */
+	reg_write(GPP_DATA_IN_POL_REG(0), DS414_GPP_OUT_POL_LOW);
+	reg_write(GPP_DATA_IN_POL_REG(1), DS414_GPP_OUT_POL_MID);
+	reg_write(GPP_DATA_IN_POL_REG(2), DS414_GPP_OUT_POL_HIGH);
+
+	/* Set GPP Out Enable */
+	reg_write(GPP_DATA_OUT_EN_REG(0), DS414_GPP_OUT_ENA_LOW);
+	reg_write(GPP_DATA_OUT_EN_REG(1), DS414_GPP_OUT_ENA_MID);
+	reg_write(GPP_DATA_OUT_EN_REG(2), DS414_GPP_OUT_ENA_HIGH);
+
+	for (i = 0; i < ARRAY_SIZE(ds414_mpp_control); i++)
+		reg_write(MPP_CONTROL_REG(i), ds414_mpp_control[i]);
+
+	return 0;
+}
+
+int board_init(void)
+{
+	u32 pwr_mng_ctrl_reg;
+
+	/* Adress of boot parameters */
+	gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;
+
+	/* Gate unused clocks
+	 *
+	 * Note: Disabling unused PCIe lanes will hang PCI bus scan.
+	 *       Once this is resolved, bits 10-12, 26 and 27 can be
+	 *       unset here as well.
+	 */
+	pwr_mng_ctrl_reg = reg_read(POWER_MNG_CTRL_REG);
+	pwr_mng_ctrl_reg &= ~(BIT(0));				/* Audio */
+	pwr_mng_ctrl_reg &= ~(BIT(1) | BIT(2));			/* GE3, GE2 */
+	pwr_mng_ctrl_reg &= ~(BIT(14) | BIT(15));		/* SATA0 link and core */
+	pwr_mng_ctrl_reg &= ~(BIT(16));				/* LCD */
+	pwr_mng_ctrl_reg &= ~(BIT(17));				/* SDIO */
+	pwr_mng_ctrl_reg &= ~(BIT(19) | BIT(20));		/* USB1 and USB2 */
+	pwr_mng_ctrl_reg &= ~(BIT(29) | BIT(30));		/* SATA1 link and core */
+	reg_write(POWER_MNG_CTRL_REG, pwr_mng_ctrl_reg);
+
+	return 0;
+}
+
+int checkboard(void)
+{
+	puts("Board: DS414\n");
+
+	return 0;
+}

u-boot/board/Synology/ds414/kwbimage.cfg

@@ -0,0 +1,12 @@
+#
+# Copyright (C) 2014 Stefan Roese <sr@denx.de>
+#
+
+# Armada XP uses version 1 image format
+VERSION		1
+
+# Boot Media configurations
+BOOT_FROM	spi
+
+# Binary Header (bin_hdr) with DDR3 training code
+BINARY spl/u-boot-spl-dtb.bin 0000005b 00000068