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/bct-brettl2/Kconfig

@@ -0,0 +1,9 @@
+if TARGET_BCT_BRETTL2
+
+config SYS_BOARD
+	default "bct-brettl2"
+
+config SYS_CONFIG_NAME
+	default "bct-brettl2"
+
+endif

u-boot/board/bct-brettl2/MAINTAINERS

@@ -0,0 +1,6 @@
+BCT-BRETTL2 BOARD
+M:	Peter Meerwald <devel@bct-electronic.com>
+S:	Maintained
+F:	board/bct-brettl2/
+F:	include/configs/bct-brettl2.h
+F:	configs/bct-brettl2_defconfig

u-boot/board/bct-brettl2/Makefile

@@ -0,0 +1,13 @@
+#
+# U-Boot - Makefile
+#
+# Copyright (c) 2005-2008 Analog Device Inc.
+#
+# (C) Copyright 2000-2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y	:= bct-brettl2.o gpio_cfi_flash.o cled.o
+obj-$(CONFIG_BFIN_MAC) += smsc9303.o

u-boot/board/bct-brettl2/bct-brettl2.c

@@ -0,0 +1,109 @@
+/*
+ * U-Boot - main board file for BCT brettl2
+ *
+ * Copyright (c) 2010 BCT Electronic GmbH
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <common.h>
+#include <config.h>
+#include <command.h>
+#include <asm/blackfin.h>
+#include <asm/portmux.h>
+#include <asm/gpio.h>
+#include <net.h>
+#include <netdev.h>
+#include <miiphy.h>
+
+#include "../cm-bf537e/gpio_cfi_flash.h"
+#include "smsc9303.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int checkboard(void)
+{
+	printf("Board: bct-brettl2 board\n");
+	printf("       Support: http://www.bct-electronic.com/\n");
+	return 0;
+}
+
+#ifdef CONFIG_BFIN_MAC
+int board_eth_init(bd_t *bis)
+{
+	int retry = 3;
+	int ret;
+
+	ret = bfin_EMAC_initialize(bis);
+
+	uchar enetaddr[6];
+	if (eth_getenv_enetaddr("ethaddr", enetaddr)) {
+		printf("setting MAC %pM\n", enetaddr);
+	}
+	puts("       ");
+
+	puts("initialize SMSC LAN9303i ethernet switch\n");
+
+	while (retry-- > 0) {
+		if (init_smsc9303i_mii())
+			return ret;
+	}
+
+	return ret;
+}
+#endif
+
+static void init_tlv320aic31(void)
+{
+	puts("Audio: setup TIMER0 to enable 16.384 MHz clock for tlv320aic31\n");
+	peripheral_request(P_TMR0, "tlv320aic31 clock");
+	bfin_write_TIMER0_CONFIG(0x020d);
+	bfin_write_TIMER0_PERIOD(0x0008);
+	bfin_write_TIMER0_WIDTH(0x0008/2);
+	bfin_write_TIMER_ENABLE(bfin_read_TIMER_ENABLE() | 1);
+	SSYNC();
+	udelay(10000);
+
+	puts("       resetting tlv320aic31\n");
+
+	gpio_request(GPIO_PF2, "tlv320aic31");
+	gpio_direction_output(GPIO_PF2, 0);
+	udelay(10000);
+	gpio_direction_output(GPIO_PF2, 1);
+	udelay(10000);
+	gpio_free(GPIO_PF2);
+}
+
+static void init_mute_pin(void)
+{
+	printf("       unmute class D amplifier\n");
+
+	gpio_request(GPIO_PF5, "mute");
+	gpio_direction_output(GPIO_PF5, 1);
+	gpio_free(GPIO_PF5);
+}
+
+/* sometimes LEDs (speech, status) are still on after reboot, turn 'em off */
+static void turn_leds_off(void)
+{
+	printf("       turn LEDs off\n");
+
+	gpio_request(GPIO_PF6, "led");
+	gpio_direction_output(GPIO_PF6, 0);
+	gpio_free(GPIO_PF6);
+
+	gpio_request(GPIO_PF15, "led");
+	gpio_direction_output(GPIO_PF15, 0);
+	gpio_free(GPIO_PF15);
+}
+
+/* miscellaneous platform dependent initialisations */
+int misc_init_r(void)
+{
+	gpio_cfi_flash_init();
+	init_tlv320aic31();
+	init_mute_pin();
+	turn_leds_off();
+
+	return 0;
+}

u-boot/board/bct-brettl2/cled.c

@@ -0,0 +1,32 @@
+/*
+ * cled.c - control color led
+ *
+ * Copyright (c) 2010 BCT Electronic GmbH
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <common.h>
+#include <command.h>
+#include <asm/blackfin.h>
+#include <asm/io.h>
+
+int do_cled(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	ulong addr = 0x20000000 + 0x200000; /* AMS2 */
+	uchar data;
+
+	if (argc < 2)
+		return cmd_usage(cmdtp);
+
+	data = simple_strtoul(argv[1], NULL, 10);
+	outb(data, addr);
+
+	printf("cled, write %02x\n", data);
+
+	return 0;
+}
+
+U_BOOT_CMD(cled, 2, 0, do_cled,
+	"set/clear color LED",
+	"");

u-boot/board/bct-brettl2/gpio_cfi_flash.c

@@ -0,0 +1,4 @@
+#define GPIO_PIN_1 GPIO_PG5
+#define GPIO_PIN_2 GPIO_PG6
+#define GPIO_PIN_3 GPIO_PG7
+#include "../cm-bf537e/gpio_cfi_flash.c"

u-boot/board/bct-brettl2/smsc9303.c

@@ -0,0 +1,176 @@
+/*
+ * smsc9303.c - routines to initialize SMSC 9303 switch
+ *
+ * Copyright (c) 2010 BCT Electronic GmbH
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <common.h>
+#include <config.h>
+#include <miiphy.h>
+
+#include <asm/blackfin.h>
+#include <asm/gpio.h>
+
+static int smc9303i_write_mii(unsigned char addr, unsigned char reg, unsigned short data)
+{
+	const char *devname = miiphy_get_current_dev();
+
+	if (!devname)
+	    return 0;
+
+	if (miiphy_write(devname, addr, reg, data) != 0)
+	    return 0;
+
+	return 1;
+}
+
+static int smc9303i_write_reg(unsigned short reg, unsigned int data)
+{
+	const char *devname = miiphy_get_current_dev();
+	unsigned char mii_addr = 0x10 | (reg >> 6);
+	unsigned char mii_reg = (reg & 0x3c) >> 1;
+
+	if (!devname)
+	    return 0;
+
+	if (miiphy_write(devname, mii_addr, mii_reg|0, data & 0xffff) != 0)
+	    return 0;
+
+	if (miiphy_write(devname, mii_addr, mii_reg|1, data >> 16) != 0)
+	    return 0;
+
+	return 1;
+}
+
+static int smc9303i_read_reg(unsigned short reg, unsigned int *data)
+{
+	const char *devname = miiphy_get_current_dev();
+	unsigned char mii_addr = 0x10 | (reg >> 6);
+	unsigned char mii_reg = (reg & 0x3c) >> 1;
+	unsigned short tmp1, tmp2;
+
+	if (!devname)
+	    return 0;
+
+	if (miiphy_read(devname, mii_addr, mii_reg|0, &tmp1) != 0)
+	    return 0;
+
+	if (miiphy_read(devname, mii_addr, mii_reg|1, &tmp2) != 0)
+	    return 0;
+
+	*data = (tmp2 << 16) | tmp1;
+
+	return 1;
+}
+
+#if 0
+static int smc9303i_read_mii(unsigned char addr, unsigned char reg, unsigned short *data)
+{
+	const char *devname = miiphy_get_current_dev();
+
+	if (!devname)
+	    return 0;
+
+	if (miiphy_read(devname, addr, reg, data) != 0)
+	    return 0;
+
+	return 1;
+}
+#endif
+
+typedef struct {
+	unsigned short reg;
+	unsigned int value;
+} smsc9303i_config_entry1_t;
+
+static const smsc9303i_config_entry1_t smsc9303i_config_table1[] =
+{
+	{0x1a0, 0x00000006}, /* Port 1 Manual Flow Control Register */
+	{0x1a4, 0x00000006}, /* Port 2 Manual Flow Control Register */
+	{0x1a8, 0x00000006}, /* Port 0 Manual Flow Control Register */
+};
+
+typedef struct
+{
+	unsigned char addr;
+	unsigned char reg;
+	unsigned short value;
+} smsc9303i_config_entry2_t;
+
+static const smsc9303i_config_entry2_t smsc9303i_config_table2[] =
+{
+	{0x01, 0x00, 0x0100}, /* Port0 PHY Basic Control Register */
+	{0x02, 0x00, 0x1100}, /* Port1 PHY Basic Control Register */
+	{0x03, 0x00, 0x1100}, /* Port2 PHY Basic Control Register */
+
+	{0x01, 0x04, 0x0001}, /* Port0 PHY Auto-Negotiation Advertisement Register */
+	{0x02, 0x04, 0x2de1}, /* Port1 PHY Auto-Negotiation Advertisement Register */
+	{0x03, 0x04, 0x2de1}, /* Port2 PHY Auto-Negotiation Advertisement Register */
+
+	{0x01, 0x11, 0x0000}, /* Port0 PHY Mode Control/Status Register */
+	{0x02, 0x11, 0x0000}, /* Port1 PHY Mode Control/Status Register */
+	{0x03, 0x11, 0x0000}, /* Port2 PHY Mode Control/Status Register */
+
+	{0x01, 0x12, 0x0021}, /* Port0 PHY Special Modes Register */
+	{0x02, 0x12, 0x00e2}, /* Port1 PHY Special Modes Register */
+	{0x03, 0x12, 0x00e3}, /* Port2 PHY Special Modes Register */
+	{0x01, 0x1b, 0x0000}, /* Port0 PHY Special Control/Status Indication Register */
+	{0x02, 0x1b, 0x0000}, /* Port1 PHY Special Control/Status Indication Register */
+	{0x03, 0x1b, 0x0000}, /* Port2 PHY Special Control/Status Indication Register */
+	{0x01, 0x1e, 0x0000}, /* Port0 PHY Interrupt Source Flags Register */
+	{0x02, 0x1e, 0x0000}, /* Port1 PHY Interrupt Source Flags Register */
+	{0x03, 0x1e, 0x0000}, /* Port2 PHY Interrupt Source Flags Register */
+};
+
+int init_smsc9303i_mii(void)
+{
+	unsigned int data;
+	unsigned int i;
+
+	printf("       reset SMSC LAN9303i\n");
+
+	gpio_request(GPIO_PG10, "smsc9303");
+	gpio_direction_output(GPIO_PG10, 0);
+	udelay(10000);
+	gpio_direction_output(GPIO_PG10, 1);
+	udelay(10000);
+
+	gpio_free(GPIO_PG10);
+
+#if defined(CONFIG_MII_INIT)
+	mii_init();
+#endif
+
+	printf("       write SMSC LAN9303i configuration\n");
+
+	if (!smc9303i_read_reg(0x50, &data))
+		return 0;
+
+	if ((data >> 16) != 0x9303)	{
+		/* chip id not found */
+		printf("       error identifying SMSC LAN9303i\n");
+		return 0;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(smsc9303i_config_table1); i++) {
+		const smsc9303i_config_entry1_t *entry = &smsc9303i_config_table1[i];
+
+		if (!smc9303i_write_reg(entry->reg, entry->value)) {
+			printf("       error writing SMSC LAN9303i configuration\n");
+			return 0;
+		}
+	}
+
+	for (i = 0; i < ARRAY_SIZE(smsc9303i_config_table2); i++) {
+		const smsc9303i_config_entry2_t *entry = &smsc9303i_config_table2[i];
+
+		if (!smc9303i_write_mii(entry->addr, entry->reg, entry->value)) {
+			printf("       error writing SMSC LAN9303i configuration\n");
+			return 0;
+		}
+	}
+
+	return 1;
+}

u-boot/board/bct-brettl2/smsc9303.h

@@ -0,0 +1,9 @@
+/*
+ * smsc9303.h - routines to initialize SMSC 9303 switch
+ *
+ * Copyright (c) 2010 BCT Electronic GmbH
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+int init_smsc9303i_mii(void);