1 files changed, 142 insertions, 0 deletions
diff --git a/roms/u-boot/board/lego/ev3/legoev3.c b/roms/u-boot/board/lego/ev3/legoev3.c
new file mode 100644
index 000000000..980ffef4c
--- /dev/null
+++ b/roms/u-boot/board/lego/ev3/legoev3.c
@@ -0,0 +1,142 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2016 David Lechner <david@lechnology.com>
+ *
+ * Based on da850evm.c
+ *
+ * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * Based on da830evm.c. Original Copyrights follow:
+ *
+ * Copyright (C) 2009 Nick Thompson, GE Fanuc, Ltd. <nick.thompson@gefanuc.com>
+ * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
+ */
+
+#include <common.h>
+#include <env.h>
+#include <i2c.h>
+#include <init.h>
+#include <spi.h>
+#include <spi_flash.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/pinmux_defs.h>
+#include <asm/global_data.h>
+#include <asm/io.h>
+#include <asm/arch/davinci_misc.h>
+#include <linux/errno.h>
+#include <hwconfig.h>
+#include <asm/mach-types.h>
+#include <asm/setup.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define EEPROM_I2C_ADDR		0x50
+#define EEPROM_REV_OFFSET	0x3F00
+#define EEPROM_BDADDR_OFFSET	0x3F06
+
+const struct pinmux_resource pinmuxes[] = {
+	PINMUX_ITEM(spi0_pins_base),
+	PINMUX_ITEM(spi0_pins_scs0),
+	PINMUX_ITEM(uart1_pins_txrx),
+	PINMUX_ITEM(i2c0_pins),
+	PINMUX_ITEM(mmc0_pins),
+};
+
+const int pinmuxes_size = ARRAY_SIZE(pinmuxes);
+
+const struct lpsc_resource lpsc[] = {
+	{ DAVINCI_LPSC_SPI0 },	/* Serial Flash */
+	{ DAVINCI_LPSC_UART1 },	/* console */
+	{ DAVINCI_LPSC_MMC_SD },
+};
+
+const int lpsc_size = ARRAY_SIZE(lpsc);
+
+/*
+ * The Bluetooth address serves as the board serial number.
+ */
+static void setup_serial_number(void)
+{
+	u32 offset;
+	char serial_number[13];
+	u8 buf[6];
+	u8 eeprom_rev;
+
+	if (env_get("serial#"))
+		return;
+
+	if (i2c_read(EEPROM_I2C_ADDR, EEPROM_REV_OFFSET, 2, buf, 2)) {
+		printf("\nEEPROM revision read failed!\n");
+		return;
+	}
+
+	/*
+	 * EEPROM rev 3 has Bluetooth address at EEPROM_REV_OFFSET.
+	 * Other revisions have checksum at EEPROM_REV_OFFSET+1
+	 * to detect this.
+	 */
+	if ((buf[0] ^ buf[1]) == 0xFF)
+		eeprom_rev = buf[0];
+	else
+		eeprom_rev = 3;
+
+	/* EEPROM rev 3 has Bluetooth address where rev should be */
+	offset = (eeprom_rev == 3) ? EEPROM_REV_OFFSET : EEPROM_BDADDR_OFFSET;
+
+	if (i2c_read(EEPROM_I2C_ADDR, offset, 2, buf, 6)) {
+		printf("\nEEPROM serial read failed!\n");
+		return;
+	}
+
+	sprintf(serial_number, "%02X%02X%02X%02X%02X%02X",
+		buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]);
+
+	env_set("serial#", serial_number);
+}
+
+int board_early_init_f(void)
+{
+	/* enable the console UART */
+	writel((DAVINCI_UART_PWREMU_MGMT_FREE | DAVINCI_UART_PWREMU_MGMT_URRST |
+		DAVINCI_UART_PWREMU_MGMT_UTRST),
+	       &davinci_uart1_ctrl_regs->pwremu_mgmt);
+
+	/*
+	 * Power on required peripherals
+	 * ARM does not have access by default to PSC0 and PSC1
+	 * assuming here that the DSP bootloader has set the IOPU
+	 * such that PSC access is available to ARM
+	 */
+	if (da8xx_configure_lpsc_items(lpsc, ARRAY_SIZE(lpsc)))
+		return 1;
+
+	return 0;
+}
+
+int board_init(void)
+{
+	irq_init();
+
+	/* address of boot parameters */
+	gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;
+
+	/* setup the SUSPSRC for ARM to control emulation suspend */
+	writel(readl(&davinci_syscfg_regs->suspsrc) &
+	       ~(DAVINCI_SYSCFG_SUSPSRC_I2C |
+		 DAVINCI_SYSCFG_SUSPSRC_SPI0 | DAVINCI_SYSCFG_SUSPSRC_TIMER0 |
+		 DAVINCI_SYSCFG_SUSPSRC_UART1),
+	       &davinci_syscfg_regs->suspsrc);
+
+	/* configure pinmux settings */
+	if (davinci_configure_pin_mux_items(pinmuxes, ARRAY_SIZE(pinmuxes)))
+		return 1;
+
+	return 0;
+}
+
+int board_late_init(void)
+{
+	setup_serial_number();
+
+	return 0;
+}