1 files changed, 154 insertions, 0 deletions
diff --git a/roms/u-boot/board/ti/am64x/evm.c b/roms/u-boot/board/ti/am64x/evm.c
new file mode 100644
index 000000000..35cd9e027
--- /dev/null
+++ b/roms/u-boot/board/ti/am64x/evm.c
@@ -0,0 +1,154 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Board specific initialization for AM642 EVM
+ *
+ * Copyright (C) 2020-2021 Texas Instruments Incorporated - https://www.ti.com/
+ *	Keerthy <j-keerthy@ti.com>
+ *
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <spl.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/sys_proto.h>
+#include <env.h>
+
+#include "../common/board_detect.h"
+
+#define board_is_am64x_gpevm()	board_ti_k3_is("AM64-GPEVM")
+#define board_is_am64x_skevm()	board_ti_k3_is("AM64-SKEVM")
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_init(void)
+{
+	return 0;
+}
+
+int dram_init(void)
+{
+	gd->ram_size = 0x80000000;
+
+	return 0;
+}
+
+int dram_init_banksize(void)
+{
+	/* Bank 0 declares the memory available in the DDR low region */
+	gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
+	gd->bd->bi_dram[0].size = 0x80000000;
+	gd->ram_size = 0x80000000;
+
+	return 0;
+}
+
+#if defined(CONFIG_SPL_LOAD_FIT)
+int board_fit_config_name_match(const char *name)
+{
+	bool eeprom_read = board_ti_was_eeprom_read();
+
+	if (!eeprom_read || board_is_am64x_gpevm()) {
+		if (!strcmp(name, "k3-am642-r5-evm") || !strcmp(name, "k3-am642-evm"))
+			return 0;
+	} else if (board_is_am64x_skevm()) {
+		if (!strcmp(name, "k3-am642-r5-sk") || !strcmp(name, "k3-am642-sk"))
+			return 0;
+	}
+
+	return -1;
+}
+#endif
+
+#ifdef CONFIG_TI_I2C_BOARD_DETECT
+int do_board_detect(void)
+{
+	int ret;
+
+	ret = ti_i2c_eeprom_am6_get_base(CONFIG_EEPROM_BUS_ADDRESS,
+					 CONFIG_EEPROM_CHIP_ADDRESS);
+	if (ret) {
+		printf("EEPROM not available at 0x%02x, trying to read at 0x%02x\n",
+			CONFIG_EEPROM_CHIP_ADDRESS, CONFIG_EEPROM_CHIP_ADDRESS + 1);
+		ret = ti_i2c_eeprom_am6_get_base(CONFIG_EEPROM_BUS_ADDRESS,
+						 CONFIG_EEPROM_CHIP_ADDRESS + 1);
+		if (ret)
+			pr_err("Reading on-board EEPROM at 0x%02x failed %d\n",
+			       CONFIG_EEPROM_CHIP_ADDRESS + 1, ret);
+	}
+
+	return ret;
+}
+
+int checkboard(void)
+{
+	struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA;
+
+	if (!do_board_detect())
+		printf("Board: %s rev %s\n", ep->name, ep->version);
+
+	return 0;
+}
+
+#ifdef CONFIG_BOARD_LATE_INIT
+static void setup_board_eeprom_env(void)
+{
+	char *name = "am64x_gpevm";
+
+	if (do_board_detect())
+		goto invalid_eeprom;
+
+	if (board_is_am64x_gpevm())
+		name = "am64x_gpevm";
+	else if (board_is_am64x_skevm())
+		name = "am64x_skevm";
+	else
+		printf("Unidentified board claims %s in eeprom header\n",
+		       board_ti_get_name());
+
+invalid_eeprom:
+	set_board_info_env_am6(name);
+}
+
+static void setup_serial(void)
+{
+	struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA;
+	unsigned long board_serial;
+	char *endp;
+	char serial_string[17] = { 0 };
+
+	if (env_get("serial#"))
+		return;
+
+	board_serial = simple_strtoul(ep->serial, &endp, 16);
+	if (*endp != '\0') {
+		pr_err("Error: Can't set serial# to %s\n", ep->serial);
+		return;
+	}
+
+	snprintf(serial_string, sizeof(serial_string), "%016lx", board_serial);
+	env_set("serial#", serial_string);
+}
+#endif
+#endif
+
+#ifdef CONFIG_BOARD_LATE_INIT
+int board_late_init(void)
+{
+	if (IS_ENABLED(CONFIG_TI_I2C_BOARD_DETECT)) {
+		struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA;
+
+		setup_board_eeprom_env();
+		setup_serial();
+		/*
+		 * The first MAC address for ethernet a.k.a. ethernet0 comes from
+		 * efuse populated via the am654 gigabit eth switch subsystem driver.
+		 * All the other ones are populated via EEPROM, hence continue with
+		 * an index of 1.
+		 */
+		board_ti_am6_set_ethaddr(1, ep->mac_addr_cnt);
+	}
+
+	return 0;
+}
+#endif