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/include/configs/snapper9260.h

@@ -0,0 +1,150 @@
+/*
+ * Bluewater Systems Snapper 9260 and 9G20 modules
+ *
+ * (C) Copyright 2011 Bluewater Systems
+ *   Author: Andre Renaud <andre@bluewatersys.com>
+ *   Author: Ryan Mallon <ryan@bluewatersys.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+/* SoC type is defined in boards.cfg */
+#include <asm/hardware.h>
+#include <linux/sizes.h>
+
+#define CONFIG_SYS_TEXT_BASE		0x21f00000
+
+/* ARM asynchronous clock */
+#define CONFIG_SYS_AT91_MAIN_CLOCK	18432000 /* External Crystal, in Hz */
+#define CONFIG_SYS_AT91_SLOW_CLOCK	32768
+
+/* CPU */
+#define CONFIG_ARCH_CPU_INIT
+
+#define CONFIG_CMDLINE_TAG		/* enable passing of ATAGs	*/
+#define CONFIG_SETUP_MEMORY_TAGS
+#define CONFIG_INITRD_TAG
+#define CONFIG_SKIP_LOWLEVEL_INIT
+#define CONFIG_DISPLAY_CPUINFO
+
+/* SDRAM */
+#define CONFIG_NR_DRAM_BANKS		1
+#define CONFIG_SYS_SDRAM_BASE		ATMEL_BASE_CS1
+#define CONFIG_SYS_SDRAM_SIZE		(64 * 1024 * 1024) /* 64MB */
+#define CONFIG_SYS_INIT_SP_ADDR		(ATMEL_BASE_SRAM1 + 0x1000 - \
+					 GENERATED_GBL_DATA_SIZE)
+
+/* Mem test settings */
+#define CONFIG_SYS_MEMTEST_START	CONFIG_SYS_SDRAM_BASE
+#define CONFIG_SYS_MEMTEST_END		(CONFIG_SYS_SDRAM_BASE + (1024 * 1024))
+
+/* NAND Flash */
+#define CONFIG_NAND_ATMEL
+#define CONFIG_SYS_NO_FLASH
+#define CONFIG_SYS_MAX_NAND_DEVICE	1
+#define CONFIG_SYS_NAND_BASE		ATMEL_BASE_CS3
+#define CONFIG_SYS_NAND_DBW_8
+#define CONFIG_SYS_NAND_MASK_ALE	(1 << 21) /* AD21 */
+#define CONFIG_SYS_NAND_MASK_CLE	(1 << 22) /* AD22 */
+#define CONFIG_SYS_NAND_ENABLE_PIN	AT91_PIN_PC14
+#define CONFIG_SYS_NAND_READY_PIN	AT91_PIN_PC13
+
+/* Ethernet */
+#define CONFIG_MACB
+#define CONFIG_RMII
+#define CONFIG_NET_RETRY_COUNT		20
+#define CONFIG_RESET_PHY_R
+#define CONFIG_AT91_WANTS_COMMON_PHY
+#define CONFIG_TFTP_PORT
+#define CONFIG_TFTP_TSIZE
+
+/* USB */
+#define CONFIG_USB_ATMEL
+#define CONFIG_USB_ATMEL_CLK_SEL_PLLB
+#define CONFIG_USB_OHCI_NEW
+#define CONFIG_DOS_PARTITION
+#define CONFIG_SYS_USB_OHCI_CPU_INIT
+#define CONFIG_SYS_USB_OHCI_REGS_BASE	ATMEL_UHP_BASE
+#define CONFIG_SYS_USB_OHCI_SLOT_NAME	"at91sam9260"
+#define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS	2
+#define CONFIG_USB_STORAGE
+
+/* GPIOs and IO expander */
+#define CONFIG_ATMEL_LEGACY
+#define CONFIG_AT91_GPIO
+#define CONFIG_AT91_GPIO_PULLUP		1
+#define CONFIG_PCA953X
+#define CONFIG_SYS_I2C_PCA953X_ADDR	0x28
+#define CONFIG_SYS_I2C_PCA953X_WIDTH	{ {0x28, 16} }
+
+/* UARTs/Serial console */
+#define CONFIG_ATMEL_USART
+#ifndef CONFIG_DM_SERIAL
+#define CONFIG_USART_BASE		ATMEL_BASE_DBGU
+#define CONFIG_USART_ID			ATMEL_ID_SYS
+#endif
+#define CONFIG_BAUDRATE			115200
+
+/* I2C - Bit-bashed */
+#define CONFIG_SYS_I2C
+#define CONFIG_SYS_I2C_SOFT		/* I2C bit-banged */
+#define CONFIG_SYS_I2C_SOFT_SPEED	100000
+#define CONFIG_SYS_I2C_SOFT_SLAVE	0x7F
+#define CONFIG_SOFT_I2C_READ_REPEATED_START
+#define I2C_INIT do {							\
+		at91_set_gpio_output(AT91_PIN_PA23, 1);			\
+		at91_set_gpio_output(AT91_PIN_PA24, 1);			\
+		at91_set_pio_multi_drive(AT91_PIO_PORTA, 23, 1);	\
+		at91_set_pio_multi_drive(AT91_PIO_PORTA, 24, 1);	\
+	} while (0)
+#define I2C_SOFT_DECLARATIONS
+#define I2C_ACTIVE
+#define I2C_TRISTATE	at91_set_gpio_input(AT91_PIN_PA23, 1);
+#define I2C_READ	at91_get_gpio_value(AT91_PIN_PA23);
+#define I2C_SDA(bit) do {						\
+		if (bit) {						\
+			at91_set_gpio_input(AT91_PIN_PA23, 1);		\
+		} else {						\
+			at91_set_gpio_output(AT91_PIN_PA23, 1);		\
+			at91_set_gpio_value(AT91_PIN_PA23, bit);	\
+		}							\
+	} while (0)
+#define I2C_SCL(bit)	at91_set_pio_value(AT91_PIO_PORTA, 24, bit)
+#define I2C_DELAY	udelay(2)
+
+/* Boot options */
+#define CONFIG_SYS_LOAD_ADDR		0x23000000
+
+#define CONFIG_BOOTP_BOOTFILESIZE
+#define CONFIG_BOOTP_BOOTPATH
+#define CONFIG_BOOTP_GATEWAY
+#define CONFIG_BOOTP_HOSTNAME
+
+/* Environment settings */
+#define CONFIG_ENV_IS_IN_NAND
+#define CONFIG_ENV_OFFSET		(512 << 10)
+#define CONFIG_ENV_SIZE			(256 << 10)
+#define CONFIG_ENV_OVERWRITE
+#define CONFIG_BOOTARGS			"console=ttyS0,115200 ip=any"
+
+/* Console settings */
+#define CONFIG_SYS_CBSIZE		256
+#define CONFIG_SYS_MAXARGS		16
+#define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE +		\
+					 sizeof(CONFIG_SYS_PROMPT) + 16)
+#define CONFIG_SYS_LONGHELP
+#define CONFIG_CMDLINE_EDITING
+#define CONFIG_AUTO_COMPLETE
+
+/* U-Boot memory settings */
+#define CONFIG_SYS_MALLOC_LEN		(1 << 20)
+
+/* Command line configuration */
+#define CONFIG_CMD_NAND
+#define CONFIG_CMD_PCA953X
+#define CONFIG_CMD_PCA953X_INFO
+
+#endif /* __CONFIG_H */