mpc85xx: Add support for the Varisys Cyrus board

This board runs a P5020 or P5040 chip, and utilizes
an EEPROM with similar formatting to the Freescale P5020DS.

Large amounts of this code were developed by
Adrian Cox <adrian at humboldt dot co dot uk>

Signed-off-by: Andy Fleming <afleming@gmail.com>
Reviewed-by: York Sun <yorksun@freescale.com>

17 files changed, 1201 insertions, 0 deletions

diff --git a/board/varisys/common/Makefile b/board/varisys/common/Makefile
new file mode 100644
index 00000000000..1e6dcbb6de3
--- /dev/null
+++ b/board/varisys/common/Makefile
@@ -0,0 +1,23 @@
+#
+# (C) Copyright 2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+MINIMAL=
+
+ifdef CONFIG_SPL_BUILD
+ifdef CONFIG_SPL_INIT_MINIMAL
+MINIMAL=y
+endif
+endif
+
+ifdef MINIMAL
+# necessary to create built-in.o
+obj- := __dummy__.o
+else
+ifndef CONFIG_SPL_BUILD
+obj-$(CONFIG_ID_EEPROM)	+= sys_eeprom.o
+endif
+endif
diff --git a/board/varisys/common/eeprom.h b/board/varisys/common/eeprom.h
new file mode 100644
index 00000000000..004816a0fd4
--- /dev/null
+++ b/board/varisys/common/eeprom.h
@@ -0,0 +1,6 @@
+/* EEPROM init functions for Cyrus */
+
+
+void init_eeprom(int bus_num, int addr, int addr_len);
+void mac_read_from_fixed_id(void);
+int mac_read_from_eeprom_common(void);
diff --git a/board/varisys/common/sys_eeprom.c b/board/varisys/common/sys_eeprom.c
new file mode 100644
index 00000000000..b55ab818e69
--- /dev/null
+++ b/board/varisys/common/sys_eeprom.c
@@ -0,0 +1,498 @@
+/*
+ * Based on board/freescale/common/sys_eeprom.c
+ * Copyright 2006, 2008-2009, 2011 Freescale Semiconductor
+ *
+ * This defines the API for storing board information in the
+ * eeprom. It has been adapted from an earlier version of the
+ * Freescale API, but has a number of key differences. Because
+ * the two APIs are independent and may diverge further, the
+ * Varisys version of the API is implemented separately here.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+#include <i2c.h>
+#include <linux/ctype.h>
+
+#include "eeprom.h"
+
+#ifdef CONFIG_SYS_I2C_EEPROM_NXID_MAC
+#define MAX_NUM_PORTS	CONFIG_SYS_I2C_EEPROM_NXID_MAC
+#else
+#define MAX_NUM_PORTS	8
+#endif
+#define NXID_VERSION	0
+
+/**
+ * static eeprom: EEPROM layout for NXID formats
+ *
+ * See Freescale application note AN3638 for details.
+ */
+static struct __attribute__ ((__packed__)) eeprom {
+	u8 id[4];         /* 0x00 - 0x03 EEPROM Tag 'NXID' */
+	u8 sn[12];        /* 0x04 - 0x0F Serial Number */
+	u8 errata[5];     /* 0x10 - 0x14 Errata Level */
+	u8 date[6];       /* 0x15 - 0x1a Build Date */
+	u8 res_0;         /* 0x1b        Reserved */
+	u32 version;      /* 0x1c - 0x1f NXID Version */
+	u8 tempcal[8];    /* 0x20 - 0x27 Temperature Calibration Factors */
+	u8 tempcalsys[2]; /* 0x28 - 0x29 System Temperature Calibration Factors */
+	u8 tempcalflags;  /* 0x2a        Temperature Calibration Flags */
+	u8 res_1[21];     /* 0x2b - 0x3f Reserved */
+	u8 mac_count;     /* 0x40        Number of MAC addresses */
+	u8 mac_flag;      /* 0x41        MAC table flags */
+	u8 mac[MAX_NUM_PORTS][6];     /* 0x42 - x MAC addresses */
+	u32 crc;          /* x+1         CRC32 checksum */
+} e;
+
+/* Set to 1 if we've read EEPROM into memory */
+static int has_been_read;
+
+/* Is this a valid NXID EEPROM? */
+#define is_valid ((e.id[0] == 'N') || (e.id[1] == 'X') || \
+		  (e.id[2] == 'I') || (e.id[3] == 'D'))
+
+/** Fixed ID field in EEPROM */
+static unsigned char uid[16];
+
+static int eeprom_bus_num = -1;
+static int eeprom_addr;
+static int eeprom_addr_len;
+
+/**
+ * This must be called before any eeprom access.
+ */
+void init_eeprom(int bus_num, int addr, int addr_len)
+{
+	eeprom_bus_num = bus_num;
+	eeprom_addr = addr;
+	eeprom_addr_len = addr_len;
+}
+
+/**
+ * show_eeprom - display the contents of the EEPROM
+ */
+void show_eeprom(void)
+{
+	int i;
+	unsigned int crc;
+
+	/* EEPROM tag ID, either CCID or NXID */
+	printf("ID: %c%c%c%c v%u\n", e.id[0], e.id[1], e.id[2], e.id[3],
+		be32_to_cpu(e.version));
+
+	/* Serial number */
+	printf("SN: %s\n", e.sn);
+
+	printf("UID: ");
+	for (i = 0; i < 16; i++)
+		printf("%02x", uid[i]);
+	printf("\n");
+
+	/* Errata level. */
+	printf("Errata: %s\n", e.errata);
+
+	/* Build date, BCD date values, as YYMMDDhhmmss */
+	printf("Build date: 20%02x/%02x/%02x %02x:%02x:%02x %s\n",
+		e.date[0], e.date[1], e.date[2],
+		e.date[3] & 0x7F, e.date[4], e.date[5],
+		e.date[3] & 0x80 ? "PM" : "");
+
+	/* Show MAC addresses  */
+	for (i = 0; i < min(e.mac_count, (u8)MAX_NUM_PORTS); i++) {
+		u8 *p = e.mac[i];
+
+		printf("Eth%u: %02x:%02x:%02x:%02x:%02x:%02x\n", i,
+		       p[0], p[1], p[2], p[3], p[4], p[5]);
+	}
+
+	crc = crc32(0, (void *)&e, sizeof(e) - 4);
+
+	if (crc == be32_to_cpu(e.crc))
+		printf("CRC: %08x\n", be32_to_cpu(e.crc));
+	else
+		printf("CRC: %08x (should be %08x)\n",
+		       be32_to_cpu(e.crc), crc);
+
+#ifdef DEBUG
+	printf("EEPROM dump: (0x%x bytes)\n", sizeof(e));
+	for (i = 0; i < sizeof(e); i++) {
+		if ((i % 16) == 0)
+			printf("%02X: ", i);
+		printf("%02X ", ((u8 *)&e)[i]);
+		if (((i % 16) == 15) || (i == sizeof(e) - 1))
+			printf("\n");
+	}
+#endif
+}
+
+/**
+ * read_eeprom - read the EEPROM into memory
+ */
+int read_eeprom(void)
+{
+	int ret;
+	unsigned int bus;
+
+	if (eeprom_bus_num < 0) {
+		printf("EEPROM not configured\n");
+		return -1;
+	}
+
+	if (has_been_read)
+		return 0;
+
+	bus = i2c_get_bus_num();
+	i2c_set_bus_num(eeprom_bus_num);
+
+	ret = i2c_read(eeprom_addr, 0, eeprom_addr_len,
+		(void *)&e, sizeof(e));
+
+
+	/* Fixed address of ID field */
+	i2c_read(0x5f, 0x80, 1, uid, 16);
+
+	i2c_set_bus_num(bus);
+
+#ifdef DEBUG
+	show_eeprom();
+#endif
+
+	has_been_read = (ret == 0) ? 1 : 0;
+
+	return ret;
+}
+
+/**
+ *  update_crc - update the CRC
+ *
+ *  This function should be called after each update to the EEPROM structure,
+ *  to make sure the CRC is always correct.
+ */
+static void update_crc(void)
+{
+	u32 crc, crc_offset = offsetof(struct eeprom, crc);
+
+	crc = crc32(0, (void *)&e, crc_offset);
+	e.crc = cpu_to_be32(crc);
+}
+
+/**
+ * prog_eeprom - write the EEPROM from memory
+ */
+static int prog_eeprom(void)
+{
+	int ret = 0;
+	int i;
+	void *p;
+	unsigned int bus;
+
+	if (eeprom_bus_num < 0) {
+		printf("EEPROM not configured\n");
+		return -1;
+	}
+
+	/* Set the reserved values to 0xFF   */
+	e.res_0 = 0xFF;
+	memset(e.res_1, 0xFF, sizeof(e.res_1));
+	update_crc();
+
+	bus = i2c_get_bus_num();
+	i2c_set_bus_num(eeprom_bus_num);
+
+	/*
+	 * The AT24C02 datasheet says that data can only be written in page
+	 * mode, which means 8 bytes at a time, and it takes up to 5ms to
+	 * complete a given write.
+	 */
+	for (i = 0, p = &e; i < sizeof(e); i += 8, p += 8) {
+		ret = i2c_write(eeprom_addr, i, eeprom_addr_len,
+			p, min((int)(sizeof(e) - i), 8));
+		if (ret)
+			break;
+		udelay(5000);	/* 5ms write cycle timing */
+	}
+
+	if (!ret) {
+		/* Verify the write by reading back the EEPROM and comparing */
+		struct eeprom e2;
+
+		ret = i2c_read(eeprom_addr, 0,
+			eeprom_addr_len, (void *)&e2, sizeof(e2));
+		if (!ret && memcmp(&e, &e2, sizeof(e)))
+			ret = -1;
+	}
+
+	i2c_set_bus_num(bus);
+
+	if (ret) {
+		printf("Programming failed.\n");
+		has_been_read = 0;
+		return -1;
+	}
+
+	printf("Programming passed.\n");
+	return 0;
+}
+
+/**
+ * h2i - converts hex character into a number
+ *
+ * This function takes a hexadecimal character (e.g. '7' or 'C') and returns
+ * the integer equivalent.
+ */
+static inline u8 h2i(char p)
+{
+	if ((p >= '0') && (p <= '9'))
+		return p - '0';
+
+	if ((p >= 'A') && (p <= 'F'))
+		return (p - 'A') + 10;
+
+	if ((p >= 'a') && (p <= 'f'))
+		return (p - 'a') + 10;
+
+	return 0;
+}
+
+/**
+ * set_date - stores the build date into the EEPROM
+ *
+ * This function takes a pointer to a string in the format "YYMMDDhhmmss"
+ * (2-digit year, 2-digit month, etc), converts it to a 6-byte BCD string,
+ * and stores it in the build date field of the EEPROM local copy.
+ */
+static void set_date(const char *string)
+{
+	unsigned int i;
+
+	if (strlen(string) != 12) {
+		printf("Usage: mac date YYMMDDhhmmss\n");
+		return;
+	}
+
+	for (i = 0; i < 6; i++)
+		e.date[i] = h2i(string[2 * i]) << 4 | h2i(string[2 * i + 1]);
+
+	update_crc();
+}
+
+/**
+ * set_mac_address - stores a MAC address into the EEPROM
+ *
+ * This function takes a pointer to MAC address string
+ * (i.e."XX:XX:XX:XX:XX:XX", where "XX" is a two-digit hex number) and
+ * stores it in one of the MAC address fields of the EEPROM local copy.
+ */
+static void set_mac_address(unsigned int index, const char *string)
+{
+	char *p = (char *)string;
+	unsigned int i;
+
+	if ((index >= MAX_NUM_PORTS) || !string) {
+		printf("Usage: mac <n> XX:XX:XX:XX:XX:XX\n");
+		return;
+	}
+
+	for (i = 0; *p && (i < 6); i++) {
+		e.mac[index][i] = simple_strtoul(p, &p, 16);
+		if (*p == ':')
+			p++;
+	}
+
+	update_crc();
+}
+
+int do_mac(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	char cmd;
+
+	if (argc == 1) {
+		show_eeprom();
+		return 0;
+	}
+
+	cmd = argv[1][0];
+
+	if (cmd == 'r') {
+		read_eeprom();
+		return 0;
+	}
+
+	if (cmd == 'i') {
+		memcpy(e.id, "NXID", sizeof(e.id));
+		e.version = NXID_VERSION;
+		update_crc();
+		return 0;
+	}
+
+	if (!is_valid) {
+		printf("Please read the EEPROM ('r') and/or set the ID ('i') first.\n");
+		return 0;
+	}
+
+	if (argc == 2) {
+		switch (cmd) {
+		case 's':	/* save */
+			prog_eeprom();
+			break;
+		default:
+			return cmd_usage(cmdtp);
+		}
+
+		return 0;
+	}
+
+	/* We know we have at least one parameter  */
+
+	switch (cmd) {
+	case 'n':	/* serial number */
+		memset(e.sn, 0, sizeof(e.sn));
+		strncpy((char *)e.sn, argv[2], sizeof(e.sn) - 1);
+		update_crc();
+		break;
+	case 'e':	/* errata */
+		memset(e.errata, 0, 5);
+		strncpy((char *)e.errata, argv[2], 4);
+		update_crc();
+		break;
+	case 'd':	/* date BCD format YYMMDDhhmmss */
+		set_date(argv[2]);
+		break;
+	case 'p':	/* MAC table size */
+		e.mac_count = simple_strtoul(argv[2], NULL, 16);
+		update_crc();
+		break;
+	case '0' ... '9':	/* "mac 0" through "mac 22" */
+		set_mac_address(simple_strtoul(argv[1], NULL, 10), argv[2]);
+		break;
+	case 'h':	/* help */
+	default:
+		return cmd_usage(cmdtp);
+	}
+
+	return 0;
+}
+
+int mac_read_from_generic_eeprom(const char *envvar, int chip,
+	int address, int mac_bus)
+{
+	int ret;
+	unsigned int bus;
+	unsigned char mac[6];
+	char ethaddr[18];
+
+	bus = i2c_get_bus_num();
+	i2c_set_bus_num(mac_bus);
+
+	ret = i2c_read(chip, address, 1, mac, 6);
+
+	i2c_set_bus_num(bus);
+
+	if (!ret) {
+		sprintf(ethaddr, "%02X:%02X:%02X:%02X:%02X:%02X",
+			mac[0],
+			mac[1],
+			mac[2],
+			mac[3],
+			mac[4],
+			mac[5]);
+
+		printf("MAC: %s\n", ethaddr);
+		setenv(envvar, ethaddr);
+	}
+
+	return ret;
+}
+
+void mac_read_from_fixed_id(void)
+{
+#ifdef CONFIG_SYS_I2C_MAC1_CHIP_ADDR
+	mac_read_from_generic_eeprom("ethaddr", CONFIG_SYS_I2C_MAC1_CHIP_ADDR,
+		CONFIG_SYS_I2C_MAC1_DATA_ADDR, CONFIG_SYS_I2C_MAC1_BUS);
+#endif
+#ifdef CONFIG_SYS_I2C_MAC2_CHIP_ADDR
+	mac_read_from_generic_eeprom("eth1addr", CONFIG_SYS_I2C_MAC2_CHIP_ADDR,
+		CONFIG_SYS_I2C_MAC2_DATA_ADDR, CONFIG_SYS_I2C_MAC2_BUS);
+#endif
+}
+
+/**
+ * mac_read_from_eeprom - read the MAC addresses from EEPROM
+ *
+ * This function reads the MAC addresses from EEPROM and sets the
+ * appropriate environment variables for each one read.
+ *
+ * The environment variables are only set if they haven't been set already.
+ * This ensures that any user-saved variables are never overwritten.
+ *
+ * This function must be called after relocation.
+ *
+ * For NXID v1 EEPROMs, we support loading and up-converting the older NXID v0
+ * format.  In a v0 EEPROM, there are only eight MAC addresses and the CRC is
+ * located at a different offset.
+ */
+int mac_read_from_eeprom_common(void)
+{
+	unsigned int i;
+	u32 crc, crc_offset = offsetof(struct eeprom, crc);
+	u32 *crcp; /* Pointer to the CRC in the data read from the EEPROM */
+
+	puts("EEPROM: ");
+
+	if (read_eeprom()) {
+		printf("Read failed.\n");
+		return 0;
+	}
+
+	if (!is_valid) {
+		printf("Invalid ID (%02x %02x %02x %02x)\n",
+		       e.id[0], e.id[1], e.id[2], e.id[3]);
+		return 0;
+	}
+
+	crc = crc32(0, (void *)&e, crc_offset);
+	crcp = (void *)&e + crc_offset;
+	if (crc != be32_to_cpu(*crcp)) {
+		printf("CRC mismatch (%08x != %08x)\n", crc,
+			be32_to_cpu(e.crc));
+		return 0;
+	}
+
+	/*
+	 * MAC address #9 in v1 occupies the same position as the CRC in v0.
+	 * Erase it so that it's not mistaken for a MAC address.  We'll
+	 * update the CRC later.
+	 */
+	if (e.version == 0)
+		memset(e.mac[8], 0xff, 6);
+
+	for (i = 0; i < min(e.mac_count, (u8)MAX_NUM_PORTS); i++) {
+		if (memcmp(&e.mac[i], "\0\0\0\0\0\0", 6) &&
+		    memcmp(&e.mac[i], "\xFF\xFF\xFF\xFF\xFF\xFF", 6)) {
+			char ethaddr[18];
+			char enetvar[9];
+
+			sprintf(ethaddr, "%02X:%02X:%02X:%02X:%02X:%02X",
+				e.mac[i][0],
+				e.mac[i][1],
+				e.mac[i][2],
+				e.mac[i][3],
+				e.mac[i][4],
+				e.mac[i][5]);
+			sprintf(enetvar, i ? "eth%daddr" : "ethaddr", i);
+			/* Only initialize environment variables that are blank
+			 * (i.e. have not yet been set)
+			 */
+			if (!getenv(enetvar))
+				setenv(enetvar, ethaddr);
+		}
+	}
+
+	printf("%c%c%c%c v%u\n", e.id[0], e.id[1], e.id[2], e.id[3],
+		be32_to_cpu(e.version));
+
+	return 0;
+}
diff --git a/board/varisys/cyrus/Kconfig b/board/varisys/cyrus/Kconfig
new file mode 100644
index 00000000000..d9ea7ef89c5
--- /dev/null
+++ b/board/varisys/cyrus/Kconfig
@@ -0,0 +1,12 @@
+if TARGET_CYRUS
+
+config SYS_BOARD
+	default "cyrus"
+
+config SYS_VENDOR
+	default "varisys"
+
+config SYS_CONFIG_NAME
+	default "cyrus"
+
+endif
diff --git a/board/varisys/cyrus/MAINTAINERS b/board/varisys/cyrus/MAINTAINERS
new file mode 100644
index 00000000000..53b4a886bd4
--- /dev/null
+++ b/board/varisys/cyrus/MAINTAINERS
@@ -0,0 +1,7 @@
+Cyrus BOARD
+M:	Andy Fleming <afleming@gmail.com>
+S:	Maintained
+F:	board/varisys/cyrus/
+F:	include/configs/cyrus.h
+F:	configs/Cyrus_P5020_defconfig
+F:	configs/Cyrus_P5040_defconfig
diff --git a/board/varisys/cyrus/Makefile b/board/varisys/cyrus/Makefile
new file mode 100644
index 00000000000..303fc422af1
--- /dev/null
+++ b/board/varisys/cyrus/Makefile
@@ -0,0 +1,8 @@
+#
+
+obj-y	+= $(BOARD).o
+obj-y	+= ddr.o
+obj-y	+= law.o
+obj-y	+= tlb.o
+obj-y	+= eth.o
+obj-$(CONFIG_PCI) += pci.o
diff --git a/board/varisys/cyrus/README b/board/varisys/cyrus/README
new file mode 100644
index 00000000000..9595dcb7cc3
--- /dev/null
+++ b/board/varisys/cyrus/README
@@ -0,0 +1,19 @@
+Rebuilding u-boot for Cyrus
+
+The Cyrus defconfigs are Cyrus_P5020_defconfig and Cyrus_P5040_defconfig.
+
+They currently disable size optimization in order to avoid a relocation
+bug in some versions of GCC. As the output size is a constant, the size
+optimization is not currently important.
+
+Cyrus boots off a microSD card in a slot on the motherboard. This requires
+that the u-boot is built for the Pre-Boot Loader on the P5020/P5040.
+In order to reflash u-boot, you must download u-boot.pbl, then write it
+onto the card. To do that from u-boot:
+
+> tftp 1000000 u-boot.pbl
+> mmc write 1000000 8 672
+
+If you want to do this via a card reader in linux:
+
+> dd if=u-boot.pbl of=/dev/sdX bs=512 oseek=8
diff --git a/board/varisys/cyrus/cyrus.c b/board/varisys/cyrus/cyrus.c
new file mode 100644
index 00000000000..79c363cf841
--- /dev/null
+++ b/board/varisys/cyrus/cyrus.c
@@ -0,0 +1,116 @@
+/*
+ * Based on corenet_ds.c
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+#include <netdev.h>
+#include <linux/compiler.h>
+#include <asm/mmu.h>
+#include <asm/processor.h>
+#include <asm/cache.h>
+#include <asm/immap_85xx.h>
+#include <asm/fsl_law.h>
+#include <asm/fsl_serdes.h>
+#include <asm/fsl_portals.h>
+#include <asm/fsl_liodn.h>
+#include <fm_eth.h>
+#include <pci.h>
+
+#include "cyrus.h"
+#include "../common/eeprom.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define GPIO_OPENDRAIN 0x30000000
+#define GPIO_DIR       0x3c000004
+#define GPIO_INITIAL   0x30000000
+#define GPIO_VGA_SWITCH 0x00001000
+
+int checkboard(void)
+{
+	printf("Board: CYRUS\n");
+
+	return 0;
+}
+
+int board_early_init_f(void)
+{
+	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+	ccsr_gpio_t *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO_ADDR);
+
+	/*
+	 * Only use DDR1_MCK0/3 and DDR2_MCK0/3
+	 * disable DDR1_MCK1/2/4/5 and DDR2_MCK1/2/4/5 to reduce
+	 * the noise introduced by these unterminated and unused clock pairs.
+	 */
+	setbits_be32(&gur->ddrclkdr, 0x001B001B);
+
+	/* Set GPIO reset lines to open-drain, tristate */
+	setbits_be32(&pgpio->gpdat, GPIO_INITIAL);
+	setbits_be32(&pgpio->gpodr, GPIO_OPENDRAIN);
+
+	/* Set GPIO Direction */
+	setbits_be32(&pgpio->gpdir, GPIO_DIR);
+
+	return 0;
+}
+
+int board_early_init_r(void)
+{
+	fsl_lbc_t *lbc = LBC_BASE_ADDR;
+
+	out_be32(&lbc->lbcr, 0);
+	/* 1 clock LALE cycle */
+	out_be32(&lbc->lcrr, 0x80000000 | CONFIG_SYS_LBC_LCRR);
+
+	set_liodns();
+
+#ifdef CONFIG_SYS_DPAA_QBMAN
+	setup_portals();
+#endif
+	print_lbc_regs();
+	return 0;
+}
+
+int misc_init_r(void)
+{
+	return 0;
+}
+
+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_PCI
+	pci_of_setup(blob, bd);
+#endif
+
+	fdt_fixup_liodn(blob);
+	fdt_fixup_dr_usb(blob, bd);
+
+#ifdef CONFIG_SYS_DPAA_FMAN
+	fdt_fixup_fman_ethernet(blob);
+#endif
+
+	return 0;
+}
+
+int mac_read_from_eeprom(void)
+{
+	init_eeprom(CONFIG_SYS_EEPROM_BUS_NUM,
+		CONFIG_SYS_I2C_EEPROM_ADDR,
+		CONFIG_SYS_I2C_EEPROM_ADDR_LEN);
+
+	return mac_read_from_eeprom_common();
+}
diff --git a/board/varisys/cyrus/cyrus.h b/board/varisys/cyrus/cyrus.h
new file mode 100644
index 00000000000..8cd52ba3c5a
--- /dev/null
+++ b/board/varisys/cyrus/cyrus.h
@@ -0,0 +1,11 @@
+/*
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#ifndef __CYRUS_H
+#define __CYRUS_H
+
+void fdt_fixup_board_enet(void *blob);
+void pci_of_setup(void *blob, bd_t *bd);
+
+#endif
diff --git a/board/varisys/cyrus/ddr.c b/board/varisys/cyrus/ddr.c
new file mode 100644
index 00000000000..bb1d29a94cd
--- /dev/null
+++ b/board/varisys/cyrus/ddr.c
@@ -0,0 +1,188 @@
+/*
+ * Based on corenet_ds ddr code
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <i2c.h>
+#include <hwconfig.h>
+#include <asm/mmu.h>
+#include <fsl_ddr_sdram.h>
+#include <fsl_ddr_dimm_params.h>
+#include <asm/fsl_law.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+
+struct board_specific_parameters {
+	u32 n_ranks;
+	u32 datarate_mhz_high;
+	u32 clk_adjust;
+	u32 wrlvl_start;
+	u32 cpo;
+	u32 write_data_delay;
+	u32 force_2t;
+};
+
+/*
+ * This table contains all valid speeds we want to override with board
+ * specific parameters. datarate_mhz_high values need to be in ascending order
+ * for each n_ranks group.
+ */
+static const struct board_specific_parameters udimm0[] = {
+	/*
+	 * memory controller 0
+	 *   num|  hi|  clk| wrlvl | cpo  |wrdata|2T
+	 * ranks| mhz|adjst| start |      |delay |
+	 */
+	{4,   850,    4,     6,   0xff,    2,  0},
+	{4,   950,    5,     7,   0xff,    2,  0},
+	{4,  1050,    5,     8,   0xff,    2,  0},
+	{4,  1250,    5,    10,   0xff,    2,  0},
+	{4,  1350,    5,    11,   0xff,    2,  0},
+	{4,  1666,    5,    12,   0xff,    2,  0},
+	{2,   850,    5,     6,   0xff,    2,  0},
+	{2,  1050,    5,     7,   0xff,    2,  0},
+	{2,  1250,    4,     6,   0xff,    2,  0},
+	{2,  1350,    5,     7,   0xff,    2,  0},
+	{2,  1666,    5,     8,   0xff,    2,  0},
+	{1,  1250,    4,     6,   0xff,    2,  0},
+	{1,  1335,    4,     7,   0xff,    2,  0},
+	{1,  1666,    4,     8,   0xff,    2,  0},
+	{}
+};
+
+/*
+ * The two slots have slightly different timing. The center values are good
+ * for both slots. We use identical speed tables for them. In future use, if
+ * DIMMs have fewer center values that require two separated tables, copy the
+ * udimm0 table to udimm1 and make changes to clk_adjust and wrlvl_start.
+ */
+static const struct board_specific_parameters *udimms[] = {
+	udimm0,
+	udimm0,
+};
+
+static const struct board_specific_parameters rdimm0[] = {
+	/*
+	 * memory controller 0
+	 *   num|  hi|  clk| wrlvl | cpo  |wrdata|2T
+	 * ranks| mhz|adjst| start |      |delay |
+	 */
+	{4,   850,    4,     6,   0xff,    2,  0},
+	{4,   950,    5,     7,   0xff,    2,  0},
+	{4,  1050,    5,     8,   0xff,    2,  0},
+	{4,  1250,    5,    10,   0xff,    2,  0},
+	{4,  1350,    5,    11,   0xff,    2,  0},
+	{4,  1666,    5,    12,   0xff,    2,  0},
+	{2,   850,    4,     6,   0xff,    2,  0},
+	{2,  1050,    4,     7,   0xff,    2,  0},
+	{2,  1666,    4,     8,   0xff,    2,  0},
+	{1,   850,    4,     5,   0xff,    2,  0},
+	{1,   950,    4,     7,   0xff,    2,  0},
+	{1,  1666,    4,     8,   0xff,    2,  0},
+	{}
+};
+
+/*
+ * The two slots have slightly different timing. See comments above.
+ */
+static const struct board_specific_parameters *rdimms[] = {
+	rdimm0,
+	rdimm0,
+};
+
+void fsl_ddr_board_options(memctl_options_t *popts,
+				dimm_params_t *pdimm,
+				unsigned int ctrl_num)
+{
+	const struct board_specific_parameters *pbsp, *pbsp_highest = NULL;
+	ulong ddr_freq;
+
+	if (ctrl_num > 1) {
+		printf("Wrong parameter for controller number %d", ctrl_num);
+		return;
+	}
+	if (!pdimm->n_ranks)
+		return;
+
+	if (popts->registered_dimm_en)
+		pbsp = rdimms[ctrl_num];
+	else
+		pbsp = udimms[ctrl_num];
+
+
+	/* Get clk_adjust, cpo, write_data_delay,2T, according to the board ddr
+	 * freqency and n_banks specified in board_specific_parameters table.
+	 */
+	ddr_freq = get_ddr_freq(0) / 1000000;
+	while (pbsp->datarate_mhz_high) {
+		if (pbsp->n_ranks == pdimm->n_ranks) {
+			if (ddr_freq <= pbsp->datarate_mhz_high) {
+				popts->cpo_override = pbsp->cpo;
+				popts->write_data_delay =
+					pbsp->write_data_delay;
+				popts->clk_adjust = pbsp->clk_adjust;
+				popts->wrlvl_start = pbsp->wrlvl_start;
+				popts->twot_en = pbsp->force_2t;
+				goto found;
+			}
+			pbsp_highest = pbsp;
+		}
+		pbsp++;
+	}
+
+	if (pbsp_highest) {
+		printf("Error: board specific timing not found for data rate %lu MT/s!\nTrying to use the highest speed (%u) parameters\n",
+			ddr_freq, pbsp_highest->datarate_mhz_high);
+		popts->cpo_override = pbsp_highest->cpo;
+		popts->write_data_delay = pbsp_highest->write_data_delay;
+		popts->clk_adjust = pbsp_highest->clk_adjust;
+		popts->wrlvl_start = pbsp_highest->wrlvl_start;
+		popts->twot_en = pbsp_highest->force_2t;
+	} else {
+		panic("DIMM is not supported by this board");
+	}
+found:
+	/*
+	 * Factors to consider for half-strength driver enable:
+	 *	- number of DIMMs installed
+	 */
+	popts->half_strength_driver_enable = 0;
+	/*
+	 * Write leveling override
+	 */
+	popts->wrlvl_override = 1;
+	popts->wrlvl_sample = 0xf;
+
+	/*
+	 * Rtt and Rtt_WR override
+	 */
+	popts->rtt_override = 0;
+
+	/* Enable ZQ calibration */
+	popts->zq_en = 1;
+
+	/* DHC_EN =1, ODT = 60 Ohm */
+	popts->ddr_cdr1 = DDR_CDR1_DHC_EN;
+}
+
+phys_size_t initdram(int board_type)
+{
+	phys_size_t dram_size;
+
+	puts("Initializing....");
+
+	if (!fsl_use_spd())
+		panic("Cyrus only supports using SPD for DRAM\n");
+
+	puts("using SPD\n");
+	dram_size = fsl_ddr_sdram();
+
+	dram_size = setup_ddr_tlbs(dram_size / 0x100000);
+	dram_size *= 0x100000;
+
+	debug("    DDR: ");
+	return dram_size;
+}
diff --git a/board/varisys/cyrus/eth.c b/board/varisys/cyrus/eth.c
new file mode 100644
index 00000000000..bcadc677948
--- /dev/null
+++ b/board/varisys/cyrus/eth.c
@@ -0,0 +1,100 @@
+/*
+ * Author Adrian Cox
+ * Based somewhat on board/freescale/corenet_ds/eth_hydra.c
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <netdev.h>
+#include <asm/fsl_serdes.h>
+#include <fm_eth.h>
+#include <fsl_mdio.h>
+#include <malloc.h>
+#include <fdt_support.h>
+#include <fsl_dtsec.h>
+
+#ifdef CONFIG_FMAN_ENET
+
+#define FIRST_PORT_ADDR 3
+#define SECOND_PORT_ADDR 7
+
+#ifdef CONFIG_PPC_P5040
+#define FIRST_PORT FM1_DTSEC5
+#define SECOND_PORT FM2_DTSEC5
+#else
+#define FIRST_PORT FM1_DTSEC4
+#define SECOND_PORT FM1_DTSEC5
+#endif
+
+#define IS_VALID_PORT(p)  ((p) == FIRST_PORT || (p) == SECOND_PORT)
+
+static void cyrus_phy_tuning(int phy)
+{
+	/*
+	 * Enable RGMII delay on Tx and Rx for CPU port
+	 */
+	printf("Tuning PHY @ %d\n", phy);
+
+	/* sets address 0x104 or reg 260 for writing */
+	miiphy_write(DEFAULT_FM_MDIO_NAME, phy, 0xb, 0x8104);
+	/* Sets RXC/TXC to +0.96ns and TX_CTL/RX_CTL to -0.84ns */
+	miiphy_write(DEFAULT_FM_MDIO_NAME, phy, 0xc, 0xf0f0);
+	/* sets address 0x105 or reg 261 for writing */
+	miiphy_write(DEFAULT_FM_MDIO_NAME, phy, 0xb, 0x8105);
+	/* writes to address 0x105 , RXD[3..0] to -0. */
+	miiphy_write(DEFAULT_FM_MDIO_NAME, phy, 0xc, 0x0000);
+	/* sets address 0x106 or reg 261 for writing */
+	miiphy_write(DEFAULT_FM_MDIO_NAME, phy, 0xb, 0x8106);
+	/* writes to address 0x106 , TXD[3..0] to -0.84ns */
+	miiphy_write(DEFAULT_FM_MDIO_NAME, phy, 0xc, 0x0000);
+	/* force re-negotiation */
+	miiphy_write(DEFAULT_FM_MDIO_NAME, phy, 0x0, 0x1340);
+}
+#endif
+
+int board_eth_init(bd_t *bis)
+{
+#ifdef CONFIG_FMAN_ENET
+	struct fsl_pq_mdio_info dtsec_mdio_info;
+	unsigned int i;
+
+	printf("Initializing Fman\n");
+
+
+	/* Register the real 1G MDIO bus */
+	dtsec_mdio_info.regs =
+		(struct tsec_mii_mng *)CONFIG_SYS_FM1_DTSEC1_MDIO_ADDR;
+	dtsec_mdio_info.name = DEFAULT_FM_MDIO_NAME;
+
+	fsl_pq_mdio_init(bis, &dtsec_mdio_info);
+
+
+	fm_info_set_phy_address(FIRST_PORT, FIRST_PORT_ADDR);
+	fm_info_set_mdio(FIRST_PORT,
+			miiphy_get_dev_by_name(DEFAULT_FM_MDIO_NAME));
+	fm_info_set_phy_address(SECOND_PORT, SECOND_PORT_ADDR);
+	fm_info_set_mdio(SECOND_PORT,
+			miiphy_get_dev_by_name(DEFAULT_FM_MDIO_NAME));
+
+	/* Never disable DTSEC1 - it controls MDIO */
+	for (i = FM1_DTSEC2; i < FM1_DTSEC1 + CONFIG_SYS_NUM_FM1_DTSEC; i++) {
+		if (!IS_VALID_PORT(i))
+			fm_disable_port(i);
+	}
+
+#ifdef CONFIG_PPC_P5040
+	for (i = FM2_DTSEC2; i < FM2_DTSEC1 + CONFIG_SYS_NUM_FM2_DTSEC; i++) {
+		if (!IS_VALID_PORT(i))
+			fm_disable_port(i);
+	}
+#endif
+
+	cpu_eth_init(bis);
+
+	cyrus_phy_tuning(FIRST_PORT_ADDR);
+	cyrus_phy_tuning(SECOND_PORT_ADDR);
+#endif
+
+	return pci_eth_init(bis);
+}
diff --git a/board/varisys/cyrus/law.c b/board/varisys/cyrus/law.c
new file mode 100644
index 00000000000..91e1d852464
--- /dev/null
+++ b/board/varisys/cyrus/law.c
@@ -0,0 +1,27 @@
+/*
+ * Author: Adrian Cox
+ * Based on corenet_ds law files.
+ *
+ * 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_LBC0_BASE_PHYS, LAW_SIZE_64K, LAW_TRGT_IF_LBC),
+	SET_LAW(CONFIG_SYS_LBC1_BASE_PHYS, LAW_SIZE_4K, LAW_TRGT_IF_LBC),
+#ifdef CONFIG_SYS_BMAN_MEM_PHYS
+	SET_LAW(CONFIG_SYS_BMAN_MEM_PHYS, LAW_SIZE_2M, LAW_TRGT_IF_BMAN),
+#endif
+#ifdef CONFIG_SYS_QMAN_MEM_PHYS
+	SET_LAW(CONFIG_SYS_QMAN_MEM_PHYS, LAW_SIZE_2M, LAW_TRGT_IF_QMAN),
+#endif
+#ifdef CONFIG_SYS_DCSRBAR_PHYS
+	/* Limit DCSR to 32M to access NPC Trace Buffer */
+	SET_LAW(CONFIG_SYS_DCSRBAR_PHYS, LAW_SIZE_32M, LAW_TRGT_IF_DCSR),
+#endif
+};
+
+int num_law_entries = ARRAY_SIZE(law_table);
diff --git a/board/varisys/cyrus/pbi.cfg b/board/varisys/cyrus/pbi.cfg
new file mode 100644
index 00000000000..9b330ddcc49
--- /dev/null
+++ b/board/varisys/cyrus/pbi.cfg
@@ -0,0 +1,35 @@
+#
+# Copyright 2012 Freescale Semiconductor, Inc.
+#
+# Refer docs/README.pblimage for more details about how-to configure
+# and create PBL boot image
+#
+# SPDX-License-Identifier:    GPL-2.0+
+#
+
+#PBI commands
+#Initialize CPC1 as 1MB SRAM
+09010000 00200400
+09138000 00000000
+091380c0 00000100
+09010100 00000000
+09010104 fff0000b
+09010f00 08000000
+09010000 80000000
+#Configure LAW for CPC1
+09000d00 00000000
+09000d04 fff00000
+09000d08 81000013
+09000010 00000000
+09000014 ff000000
+09000018 81000000
+#Initialize eSPI controller, default configuration is slow for eSPI to
+#load data, this configuration comes from u-boot eSPI driver.
+09110000 80000403
+09110020 2d170008
+09110024 00100008
+09110028 00100008
+0911002c 00100008
+#Flush PBL data
+09138000 00000000
+091380c0 00000000
diff --git a/board/varisys/cyrus/pci.c b/board/varisys/cyrus/pci.c
new file mode 100644
index 00000000000..4780e8c147a
--- /dev/null
+++ b/board/varisys/cyrus/pci.c
@@ -0,0 +1,23 @@
+/*
+ * Copyright 2007-2011 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+#include <pci.h>
+#include <asm/fsl_pci.h>
+#include <libfdt.h>
+#include <fdt_support.h>
+#include <asm/fsl_serdes.h>
+
+void pci_init_board(void)
+{
+	fsl_pcie_init_board(0);
+}
+
+void pci_of_setup(void *blob, bd_t *bd)
+{
+	FT_FSL_PCI_SETUP;
+}
diff --git a/board/varisys/cyrus/rcw_p5020_v2.cfg b/board/varisys/cyrus/rcw_p5020_v2.cfg
new file mode 100644
index 00000000000..9188080605a
--- /dev/null
+++ b/board/varisys/cyrus/rcw_p5020_v2.cfg
@@ -0,0 +1,11 @@
+#
+# Default RCW for Cyrus P5020
+#
+
+#PBL preamble and RCW header
+aa55aa55 010e0100
+#64 bytes RCW data
+0c540000 00000000 1e1e0000 00000000
+44808c00 ff002000 68000000 45000000
+00000000 00000000 00000000 0003000f
+a0000000 00000000 00000000 00000000
diff --git a/board/varisys/cyrus/rcw_p5040.cfg b/board/varisys/cyrus/rcw_p5040.cfg
new file mode 100644
index 00000000000..52844815686
--- /dev/null
+++ b/board/varisys/cyrus/rcw_p5040.cfg
@@ -0,0 +1,11 @@
+#
+# Default RCW for Cyrus P5040
+#
+
+#PBL preamble and RCW header
+aa55aa55 010e0100
+#64 bytes RCW data
+90e00000 00000000 acac9800 00440000
+44808c00 ff29a000 68000000 61000000
+00000000 00000000 00000000 0003000f
+a0000000 00000000 00000000 00000000
diff --git a/board/varisys/cyrus/tlb.c b/board/varisys/cyrus/tlb.c
new file mode 100644
index 00000000000..3fa58644bb3
--- /dev/null
+++ b/board/varisys/cyrus/tlb.c
@@ -0,0 +1,106 @@
+/*
+ * Author: Adrian Cox
+ * Based on corenet_ds tlb code
+ *
+ * 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_PHYS,
+		      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_PHYS + 4 * 1024,
+		      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_PHYS + 8 * 1024,
+		      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_PHYS + 12 * 1024,
+		      MAS3_SW|MAS3_SR, 0,
+		      0, 0, BOOKE_PAGESZ_4K, 0),
+
+	/* TLB 1 */
+	/* *I*** - Covers boot page */
+#if defined(CONFIG_SYS_RAMBOOT) && defined(CONFIG_SYS_INIT_L3_ADDR)
+	/*
+	 * *I*G - L3SRAM. When L3 is used as 1M SRAM, the address of the
+	 * SRAM is at 0xfff00000, it covered the 0xfffff000.
+	 */
+	SET_TLB_ENTRY(1, CONFIG_SYS_INIT_L3_ADDR, CONFIG_SYS_INIT_L3_ADDR,
+			MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+			0, 0, BOOKE_PAGESZ_1M, 1),
+#else
+	SET_TLB_ENTRY(1, 0xfffff000, 0xfffff000,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 0, BOOKE_PAGESZ_4K, 1),
+#endif
+
+	/* *I*G* - CCSRBAR */
+	SET_TLB_ENTRY(1, CONFIG_SYS_CCSRBAR, CONFIG_SYS_CCSRBAR_PHYS,
+		      MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 1, BOOKE_PAGESZ_16M, 1),
+
+	/* Local Bus */
+	SET_TLB_ENTRY(1, CONFIG_SYS_LBC0_BASE, CONFIG_SYS_LBC0_BASE_PHYS,
+		      MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 2, BOOKE_PAGESZ_64K, 1),
+	SET_TLB_ENTRY(1, CONFIG_SYS_LBC1_BASE, CONFIG_SYS_LBC1_BASE_PHYS,
+		      MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 3, BOOKE_PAGESZ_4K, 1),
+
+	/* *I*G* - PCI */
+	SET_TLB_ENTRY(1, CONFIG_SYS_PCIE1_MEM_VIRT, CONFIG_SYS_PCIE1_MEM_PHYS,
+		      MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 4, BOOKE_PAGESZ_1G, 1),
+
+	/* *I*G* - PCI */
+	SET_TLB_ENTRY(1, CONFIG_SYS_PCIE1_MEM_VIRT + 0x40000000,
+		      CONFIG_SYS_PCIE1_MEM_PHYS + 0x40000000,
+		      MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 5, BOOKE_PAGESZ_256M, 1),
+
+	SET_TLB_ENTRY(1, CONFIG_SYS_PCIE1_MEM_VIRT + 0x50000000,
+		      CONFIG_SYS_PCIE1_MEM_PHYS + 0x50000000,
+		      MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 6, BOOKE_PAGESZ_256M, 1),
+
+	/* *I*G* - PCI I/O */
+	SET_TLB_ENTRY(1, CONFIG_SYS_PCIE1_IO_VIRT, CONFIG_SYS_PCIE1_IO_PHYS,
+		      MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 7, BOOKE_PAGESZ_256K, 1),
+
+	/* Bman/Qman */
+#ifdef CONFIG_SYS_BMAN_MEM_PHYS
+	SET_TLB_ENTRY(1, CONFIG_SYS_BMAN_MEM_BASE, CONFIG_SYS_BMAN_MEM_PHYS,
+		      MAS3_SW|MAS3_SR, 0,
+		      0, 9, BOOKE_PAGESZ_1M, 1),
+	SET_TLB_ENTRY(1, CONFIG_SYS_BMAN_MEM_BASE + 0x00100000,
+		      CONFIG_SYS_BMAN_MEM_PHYS + 0x00100000,
+		      MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 10, BOOKE_PAGESZ_1M, 1),
+#endif
+#ifdef CONFIG_SYS_QMAN_MEM_PHYS
+	SET_TLB_ENTRY(1, CONFIG_SYS_QMAN_MEM_BASE, CONFIG_SYS_QMAN_MEM_PHYS,
+		      MAS3_SW|MAS3_SR, 0,
+		      0, 11, BOOKE_PAGESZ_1M, 1),
+	SET_TLB_ENTRY(1, CONFIG_SYS_QMAN_MEM_BASE + 0x00100000,
+		      CONFIG_SYS_QMAN_MEM_PHYS + 0x00100000,
+		      MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 12, BOOKE_PAGESZ_1M, 1),
+#endif
+#ifdef CONFIG_SYS_DCSRBAR_PHYS
+	SET_TLB_ENTRY(1, CONFIG_SYS_DCSRBAR, CONFIG_SYS_DCSRBAR_PHYS,
+		      MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 13, BOOKE_PAGESZ_4M, 1),
+#endif
+};
+
+int num_tlb_entries = ARRAY_SIZE(tlb_table);