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/freescale/common/vsc3316_3308.c

@@ -0,0 +1,276 @@
+/*
+ * Copyright 2012 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include "vsc3316_3308.h"
+
+#define REVISION_ID_REG		0x7E
+#define INTERFACE_MODE_REG		0x79
+#define CURRENT_PAGE_REGISTER		0x7F
+#define CONNECTION_CONFIG_PAGE		0x00
+#define INPUT_STATE_REG		0x13
+#define GLOBAL_INPUT_ISE1		0x51
+#define GLOBAL_INPUT_ISE2		0x52
+#define GLOBAL_INPUT_GAIN		0x53
+#define GLOBAL_INPUT_LOS		0x55
+#define GLOBAL_OUTPUT_PE1		0x56
+#define GLOBAL_OUTPUT_PE2		0x57
+#define GLOBAL_OUTPUT_LEVEL		0x58
+#define GLOBAL_OUTPUT_TERMINATION	0x5A
+#define GLOBAL_CORE_CNTRL		0x5D
+#define OUTPUT_MODE_PAGE		0x23
+#define CORE_CONTROL_PAGE		0x25
+#define CORE_CONFIG_REG		0x75
+
+int vsc_if_enable(unsigned int vsc_addr)
+{
+	u8 data;
+
+	debug("VSC:Configuring VSC at I2C address 0x%2x"
+			" for 2-wire interface\n", vsc_addr);
+
+	/* enable 2-wire Serial InterFace (I2C) */
+	data = 0x02;
+	return i2c_write(vsc_addr, INTERFACE_MODE_REG, 1, &data, 1);
+}
+
+int vsc3316_config(unsigned int vsc_addr, int8_t con_arr[][2],
+		unsigned int num_con)
+{
+	unsigned int i;
+	u8 rev_id = 0;
+	int ret;
+
+	debug("VSC:Initializing VSC3316 at I2C address 0x%2x"
+		" for Tx\n", vsc_addr);
+
+	ret = i2c_read(vsc_addr, REVISION_ID_REG, 1, &rev_id, 1);
+	if (ret < 0) {
+		printf("VSC:0x%x could not read REV_ID from device.\n",
+			vsc_addr);
+		return ret;
+	}
+
+	if (rev_id != 0xab) {
+		printf("VSC: device at address 0x%x is not VSC3316/3308.\n",
+			vsc_addr);
+		return -ENODEV;
+	}
+
+	ret = vsc_if_enable(vsc_addr);
+	if (ret) {
+		printf("VSC:0x%x could not configured for 2-wire I/F.\n",
+			vsc_addr);
+		return ret;
+	}
+
+	/* config connections - page 0x00 */
+	i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, CONNECTION_CONFIG_PAGE);
+
+	/* Making crosspoint connections, by connecting required
+	 * input to output */
+	for (i = 0; i < num_con ; i++)
+		i2c_reg_write(vsc_addr, con_arr[i][1], con_arr[i][0]);
+
+	/* input state - page 0x13 */
+	i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, INPUT_STATE_REG);
+	/* Configuring the required input of the switch */
+	for (i = 0; i < num_con ; i++)
+		i2c_reg_write(vsc_addr, con_arr[i][0], 0x80);
+
+	/* Setting Global Input LOS threshold value */
+	i2c_reg_write(vsc_addr, GLOBAL_INPUT_LOS, 0x60);
+
+	/* config output mode - page 0x23 */
+	i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, OUTPUT_MODE_PAGE);
+	/* Turn ON the Output driver correspond to required output*/
+	for (i = 0; i < num_con ; i++)
+		i2c_reg_write(vsc_addr,  con_arr[i][1], 0);
+
+	/* configure global core control register, Turn on Global core power */
+	i2c_reg_write(vsc_addr, GLOBAL_CORE_CNTRL, 0);
+
+	vsc_wp_config(vsc_addr);
+
+	return 0;
+}
+
+#ifdef CONFIG_SYS_FSL_B4860QDS_XFI_ERR
+int vsc3308_config_adjust(unsigned int vsc_addr, const int8_t con_arr[][2],
+		unsigned int num_con)
+{
+	unsigned int i;
+	u8 rev_id = 0;
+	int ret;
+
+	debug("VSC:Initializing VSC3308 at I2C address 0x%x for Tx\n",
+	      vsc_addr);
+
+	ret = i2c_read(vsc_addr, REVISION_ID_REG, 1, &rev_id, 1);
+	if (ret < 0) {
+		printf("VSC:0x%x could not read REV_ID from device.\n",
+		       vsc_addr);
+		return ret;
+	}
+
+	if (rev_id != 0xab) {
+		printf("VSC: device at address 0x%x is not VSC3316/3308.\n",
+		       vsc_addr);
+		return -ENODEV;
+	}
+
+	ret = vsc_if_enable(vsc_addr);
+	if (ret) {
+		printf("VSC:0x%x could not configured for 2-wire I/F.\n",
+		       vsc_addr);
+		return ret;
+	}
+
+	/* config connections - page 0x00 */
+	i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, CONNECTION_CONFIG_PAGE);
+
+	/* Configure Global Input ISE */
+	i2c_reg_write(vsc_addr, GLOBAL_INPUT_ISE1, 0);
+	i2c_reg_write(vsc_addr, GLOBAL_INPUT_ISE2, 0);
+
+	/* Configure Tx/Rx Global Output PE1 */
+	i2c_reg_write(vsc_addr, GLOBAL_OUTPUT_PE1, 0);
+
+	/* Configure Tx/Rx Global Output PE2 */
+	i2c_reg_write(vsc_addr, GLOBAL_OUTPUT_PE2, 0);
+
+	/* Configure Tx/Rx Global Input GAIN */
+	i2c_reg_write(vsc_addr, GLOBAL_INPUT_GAIN, 0x3F);
+
+	/* Setting Global Input LOS threshold value */
+	i2c_reg_write(vsc_addr, GLOBAL_INPUT_LOS, 0xE0);
+
+	/* Setting Global output termination */
+	i2c_reg_write(vsc_addr, GLOBAL_OUTPUT_TERMINATION, 0);
+
+	/* Configure Tx/Rx Global Output level */
+	if (vsc_addr == VSC3308_TX_ADDRESS)
+		i2c_reg_write(vsc_addr, GLOBAL_OUTPUT_LEVEL, 4);
+	else
+		i2c_reg_write(vsc_addr, GLOBAL_OUTPUT_LEVEL, 2);
+
+	/* Making crosspoint connections, by connecting required
+	 * input to output */
+	for (i = 0; i < num_con ; i++)
+		i2c_reg_write(vsc_addr, con_arr[i][1], con_arr[i][0]);
+
+	/* input state - page 0x13 */
+	i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, INPUT_STATE_REG);
+	/* Turning off all the required input of the switch */
+	for (i = 0; i < num_con; i++)
+		i2c_reg_write(vsc_addr, con_arr[i][0], 1);
+
+	/* only turn on specific Tx/Rx requested by the XFI erratum */
+	if (vsc_addr == VSC3308_TX_ADDRESS) {
+		i2c_reg_write(vsc_addr, 2, 0);
+		i2c_reg_write(vsc_addr, 3, 0);
+	} else {
+		i2c_reg_write(vsc_addr, 0, 0);
+		i2c_reg_write(vsc_addr, 1, 0);
+	}
+
+	/* config output mode - page 0x23 */
+	i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, OUTPUT_MODE_PAGE);
+	/* Turn off the Output driver correspond to required output*/
+	for (i = 0; i < num_con ; i++)
+		i2c_reg_write(vsc_addr,  con_arr[i][1], 1);
+
+	/* only turn on specific Tx/Rx requested by the XFI erratum */
+	if (vsc_addr == VSC3308_TX_ADDRESS) {
+		i2c_reg_write(vsc_addr, 0, 0);
+		i2c_reg_write(vsc_addr, 1, 0);
+	} else {
+		i2c_reg_write(vsc_addr, 3, 0);
+		i2c_reg_write(vsc_addr, 4, 0);
+	}
+
+	/* configure global core control register, Turn on Global core power */
+	i2c_reg_write(vsc_addr, GLOBAL_CORE_CNTRL, 0);
+
+	vsc_wp_config(vsc_addr);
+
+	return 0;
+}
+#endif
+
+int vsc3308_config(unsigned int vsc_addr, const int8_t con_arr[][2],
+		unsigned int num_con)
+{
+	unsigned int i;
+	u8 rev_id = 0;
+	int ret;
+
+	debug("VSC:Initializing VSC3308 at I2C address 0x%x"
+		" for Tx\n", vsc_addr);
+
+	ret = i2c_read(vsc_addr, REVISION_ID_REG, 1, &rev_id, 1);
+	if (ret < 0) {
+		printf("VSC:0x%x could not read REV_ID from device.\n",
+			vsc_addr);
+		return ret;
+	}
+
+	if (rev_id != 0xab) {
+		printf("VSC: device at address 0x%x is not VSC3316/3308.\n",
+			vsc_addr);
+		return -ENODEV;
+	}
+
+	ret = vsc_if_enable(vsc_addr);
+	if (ret) {
+		printf("VSC:0x%x could not configured for 2-wire I/F.\n",
+			vsc_addr);
+		return ret;
+	}
+
+	/* config connections - page 0x00 */
+	i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, CONNECTION_CONFIG_PAGE);
+
+	/* Making crosspoint connections, by connecting required
+	 * input to output */
+	for (i = 0; i < num_con ; i++)
+		i2c_reg_write(vsc_addr, con_arr[i][1], con_arr[i][0]);
+
+	/*Configure Global Input ISE and gain */
+	i2c_reg_write(vsc_addr, GLOBAL_INPUT_ISE1, 0x12);
+	i2c_reg_write(vsc_addr, GLOBAL_INPUT_ISE2, 0x12);
+
+	/* input state - page 0x13 */
+	i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, INPUT_STATE_REG);
+	/* Turning ON the required input of the switch */
+	for (i = 0; i < num_con ; i++)
+		i2c_reg_write(vsc_addr, con_arr[i][0], 0);
+
+	/* Setting Global Input LOS threshold value */
+	i2c_reg_write(vsc_addr, GLOBAL_INPUT_LOS, 0x60);
+
+	/* config output mode - page 0x23 */
+	i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, OUTPUT_MODE_PAGE);
+	/* Turn ON the Output driver correspond to required output*/
+	for (i = 0; i < num_con ; i++)
+		i2c_reg_write(vsc_addr,  con_arr[i][1], 0);
+
+	/* configure global core control register, Turn on Global core power */
+	i2c_reg_write(vsc_addr, GLOBAL_CORE_CNTRL, 0);
+
+	vsc_wp_config(vsc_addr);
+
+	return 0;
+}
+
+void vsc_wp_config(unsigned int vsc_addr)
+{
+	debug("VSC:Configuring VSC at address:0x%x for WP\n", vsc_addr);
+
+	/* For new crosspoint configuration to occur, WP bit of
+	 * CORE_CONFIG_REG should be set 1 and then reset to 0 */
+	i2c_reg_write(vsc_addr, CORE_CONFIG_REG, 0x01);
+	i2c_reg_write(vsc_addr, CORE_CONFIG_REG, 0x0);
+}