1 files changed, 430 insertions, 0 deletions

diff --git a/roms/u-boot/board/ti/j721e/evm.c b/roms/u-boot/board/ti/j721e/evm.c
new file mode 100644
index 000000000..b9a9f1955
--- /dev/null
+++ b/roms/u-boot/board/ti/j721e/evm.c
@@ -0,0 +1,430 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Board specific initialization for J721E EVM
+ *
+ * Copyright (C) 2018-2019 Texas Instruments Incorporated - http://www.ti.com/
+ *	Lokesh Vutla <lokeshvutla@ti.com>
+ *
+ */
+
+#include <common.h>
+#include <env.h>
+#include <fdt_support.h>
+#include <image.h>
+#include <init.h>
+#include <log.h>
+#include <net.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/hardware.h>
+#include <asm/global_data.h>
+#include <asm/gpio.h>
+#include <asm/io.h>
+#include <spl.h>
+#include <asm/arch/sys_proto.h>
+#include <dm.h>
+#include <dm/uclass-internal.h>
+
+#include "../common/board_detect.h"
+
+#define board_is_j721e_som()	(board_ti_k3_is("J721EX-PM1-SOM") || \
+				 board_ti_k3_is("J721EX-PM2-SOM"))
+
+#define board_is_j7200_som()	board_ti_k3_is("J7200X-PM1-SOM")
+
+/* Max number of MAC addresses that are parsed/processed per daughter card */
+#define DAUGHTER_CARD_NO_OF_MAC_ADDR	8
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_init(void)
+{
+	return 0;
+}
+
+int dram_init(void)
+{
+#ifdef CONFIG_PHYS_64BIT
+	gd->ram_size = 0x100000000;
+#else
+	gd->ram_size = 0x80000000;
+#endif
+
+	return 0;
+}
+
+ulong board_get_usable_ram_top(ulong total_size)
+{
+#ifdef CONFIG_PHYS_64BIT
+	/* Limit RAM used by U-Boot to the DDR low region */
+	if (gd->ram_top > 0x100000000)
+		return 0x100000000;
+#endif
+
+	return gd->ram_top;
+}
+
+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;
+
+#ifdef CONFIG_PHYS_64BIT
+	/* Bank 1 declares the memory available in the DDR high region */
+	gd->bd->bi_dram[1].start = CONFIG_SYS_SDRAM_BASE1;
+	gd->bd->bi_dram[1].size = 0x80000000;
+	gd->ram_size = 0x100000000;
+#endif
+
+	return 0;
+}
+
+#ifdef CONFIG_SPL_LOAD_FIT
+int board_fit_config_name_match(const char *name)
+{
+	if (!strcmp(name, "k3-j721e-common-proc-board"))
+		return 0;
+
+	return -1;
+}
+#endif
+
+#if CONFIG_IS_ENABLED(DM_GPIO) && CONFIG_IS_ENABLED(OF_LIBFDT)
+/* Returns 1, if onboard mux is set to hyperflash */
+static void __maybe_unused detect_enable_hyperflash(void *blob)
+{
+	struct gpio_desc desc = {0};
+
+	if (dm_gpio_lookup_name("6", &desc))
+		return;
+
+	if (dm_gpio_request(&desc, "6"))
+		return;
+
+	if (dm_gpio_set_dir_flags(&desc, GPIOD_IS_IN))
+		return;
+
+	if (dm_gpio_get_value(&desc)) {
+		int offset;
+
+		do_fixup_by_compat(blob, "ti,am654-hbmc", "status",
+				   "okay", sizeof("okay"), 0);
+		offset = fdt_node_offset_by_compatible(blob, -1,
+						       "ti,am654-ospi");
+		fdt_setprop(blob, offset, "status", "disabled",
+			    sizeof("disabled"));
+	}
+}
+#endif
+
+#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_TARGET_J7200_A72_EVM)
+void spl_perform_fixups(struct spl_image_info *spl_image)
+{
+	detect_enable_hyperflash(spl_image->fdt_addr);
+}
+#endif
+
+#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
+int ft_board_setup(void *blob, struct bd_info *bd)
+{
+	int ret;
+
+	ret = fdt_fixup_msmc_ram(blob, "/bus@100000", "sram@70000000");
+	if (ret < 0)
+		ret = fdt_fixup_msmc_ram(blob, "/interconnect@100000",
+					 "sram@70000000");
+	if (ret)
+		printf("%s: fixing up msmc ram failed %d\n", __func__, ret);
+
+	detect_enable_hyperflash(blob);
+
+	return ret;
+}
+#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)
+		pr_err("Reading on-board EEPROM at 0x%02x failed %d\n",
+		       CONFIG_EEPROM_CHIP_ADDRESS, ret);
+
+	return ret;
+}
+
+int checkboard(void)
+{
+	struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA;
+
+	if (do_board_detect())
+		/* EEPROM not populated */
+		printf("Board: %s rev %s\n", "J721EX-PM1-SOM", "E2");
+	else
+		printf("Board: %s rev %s\n", ep->name, ep->version);
+
+	return 0;
+}
+
+static void setup_board_eeprom_env(void)
+{
+	char *name = "j721e";
+
+	if (do_board_detect())
+		goto invalid_eeprom;
+
+	if (board_is_j721e_som())
+		name = "j721e";
+	else if (board_is_j7200_som())
+		name = "j7200";
+	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);
+}
+
+/*
+ * Declaration of daughtercards to probe. Note that when adding more
+ * cards they should be grouped by the 'i2c_addr' field to allow for a
+ * more efficient probing process.
+ */
+static const struct {
+	u8 i2c_addr;		/* I2C address of card EEPROM */
+	char *card_name;	/* EEPROM-programmed card name */
+	char *dtbo_name;	/* Device tree overlay to apply */
+	u8 eth_offset;		/* ethXaddr MAC address index offset */
+} ext_cards[] = {
+	{
+		0x51,
+		"J7X-BASE-CPB",
+		"",		/* No dtbo for this board */
+		0,
+	},
+	{
+		0x52,
+		"J7X-INFOTAN-EXP",
+		"",		/* No dtbo for this board */
+		0,
+	},
+	{
+		0x52,
+		"J7X-GESI-EXP",
+		"",		/* No dtbo for this board */
+		5,		/* Start populating from eth5addr */
+	},
+	{
+		0x54,
+		"J7X-VSC8514-ETH",
+		"",		/* No dtbo for this board */
+		1,		/* Start populating from eth1addr */
+	},
+};
+
+static bool daughter_card_detect_flags[ARRAY_SIZE(ext_cards)];
+
+const char *board_fit_get_additionnal_images(int index, const char *type)
+{
+	int i, j;
+
+	if (strcmp(type, FIT_FDT_PROP))
+		return NULL;
+
+	j = 0;
+	for (i = 0; i < ARRAY_SIZE(ext_cards); i++) {
+		if (daughter_card_detect_flags[i]) {
+			if (j == index) {
+				/*
+				 * Return dtbo name only if populated,
+				 * otherwise stop parsing here.
+				 */
+				if (strlen(ext_cards[i].dtbo_name))
+					return ext_cards[i].dtbo_name;
+				else
+					return NULL;
+			};
+
+			j++;
+		}
+	}
+
+	return NULL;
+}
+
+static int probe_daughtercards(void)
+{
+	char mac_addr[DAUGHTER_CARD_NO_OF_MAC_ADDR][TI_EEPROM_HDR_ETH_ALEN];
+	bool eeprom_read_success;
+	struct ti_am6_eeprom ep;
+	u8 previous_i2c_addr;
+	u8 mac_addr_cnt;
+	int i;
+	int ret;
+
+	/* Mark previous I2C address variable as not populated */
+	previous_i2c_addr = 0xff;
+
+	/* No EEPROM data was read yet */
+	eeprom_read_success = false;
+
+	/* Iterate through list of daughtercards */
+	for (i = 0; i < ARRAY_SIZE(ext_cards); i++) {
+		/* Obtain card-specific I2C address */
+		u8 i2c_addr = ext_cards[i].i2c_addr;
+
+		/* Read card EEPROM if not already read previously */
+		if (i2c_addr != previous_i2c_addr) {
+			/* Store I2C address so we can avoid reading twice */
+			previous_i2c_addr = i2c_addr;
+
+			/* Get and parse the daughter card EEPROM record */
+			ret = ti_i2c_eeprom_am6_get(CONFIG_EEPROM_BUS_ADDRESS,
+						    i2c_addr,
+						    &ep,
+						    (char **)mac_addr,
+						    DAUGHTER_CARD_NO_OF_MAC_ADDR,
+						    &mac_addr_cnt);
+			if (ret) {
+				debug("%s: No daughtercard EEPROM at 0x%02x found %d\n",
+				      __func__, i2c_addr, ret);
+				eeprom_read_success = false;
+				/* Skip to the next daughtercard to probe */
+				continue;
+			}
+
+			/* EEPROM read successful, okay to further process. */
+			eeprom_read_success = true;
+		}
+
+		/* Only continue processing if EEPROM data was read */
+		if (!eeprom_read_success)
+			continue;
+
+		/* Only process the parsed data if we found a match */
+		if (strncmp(ep.name, ext_cards[i].card_name, sizeof(ep.name)))
+			continue;
+
+		printf("Detected: %s rev %s\n", ep.name, ep.version);
+		daughter_card_detect_flags[i] = true;
+
+#ifndef CONFIG_SPL_BUILD
+		int j;
+		/*
+		 * Populate any MAC addresses from daughtercard into the U-Boot
+		 * environment, starting with a card-specific offset so we can
+		 * have multiple ext_cards contribute to the MAC pool in a well-
+		 * defined manner.
+		 */
+		for (j = 0; j < mac_addr_cnt; j++) {
+			if (!is_valid_ethaddr((u8 *)mac_addr[j]))
+				continue;
+
+			eth_env_set_enetaddr_by_index("eth",
+						      ext_cards[i].eth_offset + j,
+						      (uchar *)mac_addr[j]);
+		}
+#endif
+	}
+#ifndef CONFIG_SPL_BUILD
+	char name_overlays[1024] = { 0 };
+
+	for (i = 0; i < ARRAY_SIZE(ext_cards); i++) {
+		if (!daughter_card_detect_flags[i])
+			continue;
+
+		/* Skip if no overlays are to be added */
+		if (!strlen(ext_cards[i].dtbo_name))
+			continue;
+
+		/*
+		 * Make sure we are not running out of buffer space by checking
+		 * if we can fit the new overlay, a trailing space to be used
+		 * as a separator, plus the terminating zero.
+		 */
+		if (strlen(name_overlays) + strlen(ext_cards[i].dtbo_name) + 2 >
+		    sizeof(name_overlays))
+			return -ENOMEM;
+
+		/* Append to our list of overlays */
+		strcat(name_overlays, ext_cards[i].dtbo_name);
+		strcat(name_overlays, " ");
+	}
+
+	/* Apply device tree overlay(s) to the U-Boot environment, if any */
+	if (strlen(name_overlays))
+		return env_set("name_overlays", name_overlays);
+#endif
+
+	return 0;
+}
+#endif
+
+int board_late_init(void)
+{
+	if (IS_ENABLED(CONFIG_TI_I2C_BOARD_DETECT)) {
+		setup_board_eeprom_env();
+		setup_serial();
+
+		/* Check for and probe any plugged-in daughtercards */
+		probe_daughtercards();
+	}
+
+	return 0;
+}
+
+void spl_board_init(void)
+{
+#if defined(CONFIG_ESM_K3) || defined(CONFIG_ESM_PMIC)
+	struct udevice *dev;
+	int ret;
+#endif
+
+	if ((IS_ENABLED(CONFIG_TARGET_J721E_A72_EVM) ||
+	     IS_ENABLED(CONFIG_TARGET_J7200_A72_EVM)) &&
+	    IS_ENABLED(CONFIG_TI_I2C_BOARD_DETECT))
+		probe_daughtercards();
+
+#ifdef CONFIG_ESM_K3
+	if (board_ti_k3_is("J721EX-PM2-SOM")) {
+		ret = uclass_get_device_by_driver(UCLASS_MISC,
+						  DM_DRIVER_GET(k3_esm), &dev);
+		if (ret)
+			printf("ESM init failed: %d\n", ret);
+	}
+#endif
+
+#ifdef CONFIG_ESM_PMIC
+	if (board_ti_k3_is("J721EX-PM2-SOM")) {
+		ret = uclass_get_device_by_driver(UCLASS_MISC,
+						  DM_DRIVER_GET(pmic_esm),
+						  &dev);
+		if (ret)
+			printf("ESM PMIC init failed: %d\n", ret);
+	}
+#endif
+}