arm: octeontx2: Add support for OcteonTX2 SoC platforms

This patch adds support for all OcteonTX2 96xx/95xx
boards from Marvell.
For 96xx boards, use octeontx_96xx_defconfig and
for 95xx boards, use octeontx_95xx_defconfig.

Signed-off-by: Suneel Garapati <sgarapati@marvell.com>

7 files changed, 606 insertions, 0 deletions

diff --git a/board/Marvell/octeontx2/Kconfig b/board/Marvell/octeontx2/Kconfig
new file mode 100644
index 0000000000..99291d795b
--- /dev/null
+++ b/board/Marvell/octeontx2/Kconfig
@@ -0,0 +1,14 @@
+if TARGET_OCTEONTX2_95XX || TARGET_OCTEONTX2_96XX
+
+config SYS_VENDOR
+	string
+	default	"Marvell"
+
+config SYS_BOARD
+	string
+	default "octeontx2"
+
+config SYS_CONFIG_NAME
+	default "octeontx2_common"
+
+endif
diff --git a/board/Marvell/octeontx2/MAINTAINERS b/board/Marvell/octeontx2/MAINTAINERS
new file mode 100644
index 0000000000..eec1d77dd1
--- /dev/null
+++ b/board/Marvell/octeontx2/MAINTAINERS
@@ -0,0 +1,8 @@
+OCTEONTX2 BOARD
+M:	Aaron Williams <awilliams@marvell.com>
+S:	Maintained
+F:	board/Marvell/octeontx2/
+F:	include/configs/octeontx2_96xx.h
+F:	include/configs/octeontx2_95xx.h
+F:	configs/octeontx2_96xx_defconfig
+F:	configs/octeontx2_95xx_defconfig
diff --git a/board/Marvell/octeontx2/Makefile b/board/Marvell/octeontx2/Makefile
new file mode 100644
index 0000000000..1f763b197b
--- /dev/null
+++ b/board/Marvell/octeontx2/Makefile
@@ -0,0 +1,9 @@
+#/* SPDX-License-Identifier:    GPL-2.0
+# *
+# * Copyright (C) 2018 Marvell International Ltd.
+# *
+# * https://spdx.org/licenses
+# */
+
+obj-y	:= board.o smc.o soc-utils.o
+obj-$(CONFIG_OF_LIBFDT) += board-fdt.o
diff --git a/board/Marvell/octeontx2/board-fdt.c b/board/Marvell/octeontx2/board-fdt.c
new file mode 100644
index 0000000000..a4771af4c1
--- /dev/null
+++ b/board/Marvell/octeontx2/board-fdt.c
@@ -0,0 +1,221 @@
+// SPDX-License-Identifier:    GPL-2.0
+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * https://spdx.org/licenses
+ */
+
+#include <errno.h>
+#include <fdtdec.h>
+#include <fdt_support.h>
+#include <log.h>
+
+#include <linux/compiler.h>
+#include <linux/libfdt.h>
+
+#include <asm/arch/board.h>
+#include <asm/arch/smc.h>
+#include <asm/global_data.h>
+#include <asm/io.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static int fdt_get_bdk_node(void)
+{
+	int node, ret;
+	const void *fdt = gd->fdt_blob;
+
+	if (!fdt) {
+		printf("ERROR: %s: no valid device tree found\n", __func__);
+		return 0;
+	}
+
+	ret = fdt_check_header(fdt);
+	if (ret < 0) {
+		printf("fdt: %s\n", fdt_strerror(ret));
+		return 0;
+	}
+
+	node = fdt_path_offset(fdt, "/cavium,bdk");
+	if (node < 0) {
+		printf("%s: /cavium,bdk is missing from device tree: %s\n",
+		       __func__, fdt_strerror(node));
+		return 0;
+	}
+	return node;
+}
+
+u64 fdt_get_board_mac_addr(void)
+{
+	int node, len = 16;
+	const char *str = NULL;
+	const void *fdt = gd->fdt_blob;
+	u64 mac_addr = 0;
+
+	node = fdt_get_bdk_node();
+	if (!node)
+		return mac_addr;
+	str = fdt_getprop(fdt, node, "BOARD-MAC-ADDRESS", &len);
+	if (str)
+		mac_addr = simple_strtol(str, NULL, 16);
+	return mac_addr;
+}
+
+int fdt_get_board_mac_cnt(void)
+{
+	int node, len = 16;
+	const char *str = NULL;
+	const void *fdt = gd->fdt_blob;
+	int mac_count = 0;
+
+	node = fdt_get_bdk_node();
+	if (!node)
+		return mac_count;
+	str = fdt_getprop(fdt, node, "BOARD-MAC-ADDRESS-NUM", &len);
+	if (str) {
+		mac_count = simple_strtol(str, NULL, 10);
+		if (!mac_count)
+			mac_count = simple_strtol(str, NULL, 16);
+		debug("fdt: MAC_NUM %d\n", mac_count);
+	} else {
+		printf("Error: cannot retrieve mac count prop from fdt\n");
+	}
+	str = fdt_getprop(gd->fdt_blob, node, "BOARD-MAC-ADDRESS-NUM-OVERRIDE",
+			  &len);
+	if (str) {
+		if (simple_strtol(str, NULL, 10) >= 0)
+			mac_count = simple_strtol(str, NULL, 10);
+		debug("fdt: MAC_NUM %d\n", mac_count);
+	} else {
+		printf("Error: cannot retrieve mac num override prop\n");
+	}
+	return mac_count;
+}
+
+const char *fdt_get_board_serial(void)
+{
+	const void *fdt = gd->fdt_blob;
+	int node, len = 64;
+	const char *str = NULL;
+
+	node = fdt_get_bdk_node();
+	if (!node)
+		return NULL;
+
+	str = fdt_getprop(fdt, node, "BOARD-SERIAL", &len);
+	if (!str)
+		printf("Error: cannot retrieve board serial from fdt\n");
+	return str;
+}
+
+const char *fdt_get_board_revision(void)
+{
+	const void *fdt = gd->fdt_blob;
+	int node, len = 64;
+	const char *str = NULL;
+
+	node = fdt_get_bdk_node();
+	if (!node)
+		return NULL;
+
+	str = fdt_getprop(fdt, node, "BOARD-REVISION", &len);
+	if (!str)
+		printf("Error: cannot retrieve board revision from fdt\n");
+	return str;
+}
+
+const char *fdt_get_board_model(void)
+{
+	int node, len = 16;
+	const char *str = NULL;
+	const void *fdt = gd->fdt_blob;
+
+	node = fdt_get_bdk_node();
+	if (!node)
+		return NULL;
+	str = fdt_getprop(fdt, node, "BOARD-MODEL", &len);
+	if (!str)
+		printf("Error: cannot retrieve board model from fdt\n");
+	return str;
+}
+
+int arch_fixup_memory_node(void *blob)
+{
+	return 0;
+}
+
+int ft_board_setup(void *blob, struct bd_info *bd)
+{
+	int nodeoff, node, ret, i;
+	const char *temp;
+
+	static const char * const
+		octeontx_brd_nodes[] = {"BOARD-MODEL",
+					"BOARD-SERIAL",
+					"BOARD-MAC-ADDRESS",
+					"BOARD-REVISION",
+					"BOARD-MAC-ADDRESS-NUM"
+					};
+	char nodes[ARRAY_SIZE(octeontx_brd_nodes)][32];
+
+	ret = fdt_check_header(blob);
+	if (ret < 0) {
+		printf("ERROR: %s\n", fdt_strerror(ret));
+		return ret;
+	}
+
+	if (blob) {
+		nodeoff = fdt_path_offset(blob, "/cavium,bdk");
+		if (nodeoff < 0) {
+			printf("ERROR: FDT BDK node not found\n");
+			return nodeoff;
+		}
+
+		/* Read properties in temporary variables */
+		for (i = 0; i < ARRAY_SIZE(octeontx_brd_nodes); i++) {
+			temp = fdt_getprop(blob, nodeoff,
+					   octeontx_brd_nodes[i], NULL);
+			strncpy(nodes[i], temp, sizeof(nodes[i]));
+		}
+
+		/* Delete cavium,bdk node */
+		ret = fdt_del_node(blob, nodeoff);
+		if (ret < 0) {
+			printf("WARNING : could not remove cavium, bdk node\n");
+			return ret;
+		}
+		debug("%s deleted 'cavium,bdk' node\n", __func__);
+		/*
+		 * Add a new node at root level which would have
+		 * necessary info
+		 */
+		node = fdt_add_subnode(blob, 0, "octeontx_brd");
+		if (node < 0) {
+			printf("Cannot create node octeontx_brd: %s\n",
+			       fdt_strerror(node));
+			return -EIO;
+		}
+
+		/* Populate properties in node */
+		for (i = 0; i < ARRAY_SIZE(octeontx_brd_nodes); i++) {
+			if (fdt_setprop_string(blob, node,
+					       octeontx_brd_nodes[i],
+					       nodes[i])) {
+				printf("Can't set %s\n", nodes[i]);
+				return -EIO;
+			}
+		}
+	}
+
+	return 0;
+}
+
+/**
+ * Return the FDT base address that was passed by ATF
+ *
+ * @return	FDT base address received from ATF in x1 register
+ */
+void *board_fdt_blob_setup(void)
+{
+	return (void *)fdt_base_addr;
+}
diff --git a/board/Marvell/octeontx2/board.c b/board/Marvell/octeontx2/board.c
new file mode 100644
index 0000000000..50e903d9aa
--- /dev/null
+++ b/board/Marvell/octeontx2/board.c
@@ -0,0 +1,247 @@
+// SPDX-License-Identifier:    GPL-2.0
+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * https://spdx.org/licenses
+ */
+
+#include <command.h>
+#include <console.h>
+#include <cpu_func.h>
+#include <dm.h>
+#include <dm/uclass-internal.h>
+#include <env.h>
+#include <init.h>
+#include <malloc.h>
+#include <net.h>
+#include <pci_ids.h>
+#include <errno.h>
+#include <asm/io.h>
+#include <linux/compiler.h>
+#include <linux/delay.h>
+#include <linux/libfdt.h>
+#include <fdt_support.h>
+#include <asm/arch/smc.h>
+#include <asm/arch/soc.h>
+#include <asm/arch/board.h>
+#include <dm/util.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+void cleanup_env_ethaddr(void)
+{
+	char ename[32];
+
+	for (int i = 0; i < 20; i++) {
+		sprintf(ename, i ? "eth%daddr" : "ethaddr", i);
+		if (env_get(ename))
+			env_set(ename, NULL);
+	}
+}
+
+void octeontx2_board_get_mac_addr(u8 index, u8 *mac_addr)
+{
+	u64 tmp_mac, board_mac_addr = fdt_get_board_mac_addr();
+	static int board_mac_num;
+
+	board_mac_num = fdt_get_board_mac_cnt();
+	if ((!is_zero_ethaddr((u8 *)&board_mac_addr)) && board_mac_num) {
+		tmp_mac = board_mac_addr;
+		tmp_mac += index;
+		tmp_mac = swab64(tmp_mac) >> 16;
+		memcpy(mac_addr, (u8 *)&tmp_mac, ARP_HLEN);
+		board_mac_num--;
+	} else {
+		memset(mac_addr, 0, ARP_HLEN);
+	}
+	debug("%s mac %pM\n", __func__, mac_addr);
+}
+
+void board_quiesce_devices(void)
+{
+	struct uclass *uc_dev;
+	int ret;
+
+	/* Removes all RVU PF devices */
+	ret = uclass_get(UCLASS_ETH, &uc_dev);
+	if (uc_dev)
+		ret = uclass_destroy(uc_dev);
+	if (ret)
+		printf("couldn't remove rvu pf devices\n");
+
+	if (IS_ENABLED(CONFIG_OCTEONTX2_CGX_INTF)) {
+		/* Bring down all cgx lmac links */
+		cgx_intf_shutdown();
+	}
+
+	/* Removes all CGX and RVU AF devices */
+	ret = uclass_get(UCLASS_MISC, &uc_dev);
+	if (uc_dev)
+		ret = uclass_destroy(uc_dev);
+	if (ret)
+		printf("couldn't remove misc (cgx/rvu_af) devices\n");
+
+	/* SMC call - removes all LF<->PF mappings */
+	smc_disable_rvu_lfs(0);
+}
+
+int board_early_init_r(void)
+{
+	pci_init();
+	return 0;
+}
+
+int board_init(void)
+{
+	return 0;
+}
+
+int timer_init(void)
+{
+	return 0;
+}
+
+int dram_init(void)
+{
+	gd->ram_size = smc_dram_size(0);
+	gd->ram_size -= CONFIG_SYS_SDRAM_BASE;
+
+	mem_map_fill();
+
+	return 0;
+}
+
+void board_late_probe_devices(void)
+{
+	struct udevice *dev;
+	int err, cgx_cnt = 3, i;
+
+	/* Probe MAC(CGX) and NIC AF devices before Network stack init */
+	for (i = 0; i < cgx_cnt; i++) {
+		err = dm_pci_find_device(PCI_VENDOR_ID_CAVIUM,
+					 PCI_DEVICE_ID_CAVIUM_CGX, i, &dev);
+		if (err)
+			debug("%s CGX%d device not found\n", __func__, i);
+	}
+	err = dm_pci_find_device(PCI_VENDOR_ID_CAVIUM,
+				 PCI_DEVICE_ID_CAVIUM_RVU_AF, 0, &dev);
+	if (err)
+		debug("NIC AF device not found\n");
+}
+
+/**
+ * Board late initialization routine.
+ */
+int board_late_init(void)
+{
+	char boardname[32];
+	char boardserial[150], boardrev[150];
+	long val;
+	bool save_env = false;
+	const char *str;
+
+	debug("%s()\n", __func__);
+
+	/*
+	 * Now that pci_init initializes env device.
+	 * Try to cleanup ethaddr env variables, this is needed
+	 * as with each boot, configuration of QLM can change.
+	 */
+	cleanup_env_ethaddr();
+
+	snprintf(boardname, sizeof(boardname), "%s> ", fdt_get_board_model());
+	env_set("prompt", boardname);
+	set_working_fdt_addr(env_get_hex("fdtcontroladdr", fdt_base_addr));
+
+	str = fdt_get_board_revision();
+	if (str) {
+		snprintf(boardrev, sizeof(boardrev), "%s", str);
+		if (env_get("boardrev") &&
+		    strcmp(boardrev, env_get("boardrev")))
+			save_env = true;
+		env_set("boardrev", boardrev);
+	}
+
+	str = fdt_get_board_serial();
+	if (str) {
+		snprintf(boardserial, sizeof(boardserial), "%s", str);
+		if (env_get("serial#") &&
+		    strcmp(boardserial, env_get("serial#")))
+			save_env = true;
+		env_set("serial#", boardserial);
+	}
+
+	val = env_get_hex("disable_ooo", 0);
+	smc_configure_ooo(val);
+
+	if (IS_ENABLED(CONFIG_NET_OCTEONTX2))
+		board_late_probe_devices();
+
+	if (save_env)
+		env_save();
+
+	return 0;
+}
+
+/*
+ * Invoked before relocation, so limit to stack variables.
+ */
+int checkboard(void)
+{
+	printf("Board: %s\n", fdt_get_board_model());
+
+	return 0;
+}
+
+void board_acquire_flash_arb(bool acquire)
+{
+	union cpc_boot_ownerx ownerx;
+
+	if (!acquire) {
+		ownerx.u = readl(CPC_BOOT_OWNERX(3));
+		ownerx.s.boot_req = 0;
+		writel(ownerx.u, CPC_BOOT_OWNERX(3));
+	} else {
+		ownerx.u = 0;
+		ownerx.s.boot_req = 1;
+		writel(ownerx.u, CPC_BOOT_OWNERX(3));
+		udelay(1);
+		do {
+			ownerx.u = readl(CPC_BOOT_OWNERX(3));
+		} while (ownerx.s.boot_wait);
+	}
+}
+
+int last_stage_init(void)
+{
+	(void)smc_flsf_fw_booted();
+	return 0;
+}
+
+static int do_go_uboot(struct cmd_tbl *cmdtp, int flag, int argc,
+		       char *const argv[])
+{
+	typedef void __noreturn (*uboot_entry_t)(ulong, void *);
+	uboot_entry_t entry;
+	ulong addr;
+	void *fdt;
+
+	if (argc < 2)
+		return CMD_RET_USAGE;
+
+	addr = simple_strtoul(argv[1], NULL, 16);
+	fdt = board_fdt_blob_setup();
+	entry = (uboot_entry_t)addr;
+	flush_cache((ulong)addr, 1 << 20);	/* 1MiB should be enough */
+	dcache_disable();
+
+	printf("## Starting U-Boot at %p (FDT at %p)...\n", entry, fdt);
+
+	entry(0, fdt);
+
+	return 0;
+}
+
+U_BOOT_CMD(go_uboot, 2, 0, do_go_uboot,
+	   "Start U-Boot from RAM (pass FDT via x1 register)",
+	   "");
diff --git a/board/Marvell/octeontx2/smc.c b/board/Marvell/octeontx2/smc.c
new file mode 100644
index 0000000000..9e3169576c
--- /dev/null
+++ b/board/Marvell/octeontx2/smc.c
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier:    GPL-2.0
+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * https://spdx.org/licenses
+ */
+
+#include <asm/global_data.h>
+#include <asm/io.h>
+#include <asm/psci.h>
+#include <asm/ptrace.h>
+#include <asm/system.h>
+#include <asm/arch/smc.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+ssize_t smc_dram_size(unsigned int node)
+{
+	struct pt_regs regs;
+
+	regs.regs[0] = OCTEONTX2_DRAM_SIZE;
+	regs.regs[1] = node;
+	smc_call(&regs);
+
+	return regs.regs[0];
+}
+
+ssize_t smc_disable_rvu_lfs(unsigned int node)
+{
+	struct pt_regs regs;
+
+	regs.regs[0] = OCTEONTX2_DISABLE_RVU_LFS;
+	regs.regs[1] = node;
+	smc_call(&regs);
+
+	return regs.regs[0];
+}
+
+ssize_t smc_configure_ooo(unsigned int val)
+{
+	struct pt_regs regs;
+
+	regs.regs[0] = OCTEONTX2_CONFIG_OOO;
+	regs.regs[1] = val;
+	smc_call(&regs);
+
+	return regs.regs[0];
+}
+
+ssize_t smc_flsf_fw_booted(void)
+{
+	struct pt_regs regs;
+
+	regs.regs[0] = OCTEONTX2_FSAFE_PR_BOOT_SUCCESS;
+	smc_call(&regs);
+
+	return regs.regs[0];
+}
diff --git a/board/Marvell/octeontx2/soc-utils.c b/board/Marvell/octeontx2/soc-utils.c
new file mode 100644
index 0000000000..1cba7fb596
--- /dev/null
+++ b/board/Marvell/octeontx2/soc-utils.c
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier:    GPL-2.0
+/*
+ * Copyright (C) 2019 Marvell International Ltd.
+ *
+ * https://spdx.org/licenses
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <malloc.h>
+#include <errno.h>
+#include <asm/io.h>
+#include <linux/compiler.h>
+#include <asm/arch/soc.h>
+#include <asm/arch/board.h>
+#include <dm/util.h>
+
+int read_platform(void)
+{
+	int plat = PLATFORM_HW;
+
+	const char *model = fdt_get_board_model();
+
+	if (model && !strncmp(model, "ASIM-", 5))
+		plat = PLATFORM_ASIM;
+	if (model && !strncmp(model, "EMUL-", 5))
+		plat = PLATFORM_EMULATOR;
+
+	return plat;
+}
+
+static inline u64 read_midr(void)
+{
+	u64 result;
+
+	asm ("mrs %[rd],MIDR_EL1" : [rd] "=r" (result));
+	return result;
+}
+
+u8 read_partnum(void)
+{
+	return ((read_midr() >> 4) & 0xFF);
+}
+
+const char *read_board_name(void)
+{
+	return fdt_get_board_model();
+}
+