arm64: versal-net: Add support for Versal NET platform

Versal NET platform is based on Versal chip which is reusing a lot of IPs.
For more information about new IPs please take a look at DT which describe
currently supported devices.
The patch is adding architecture and board support with soc detection
algorithm. Generic setting should be very similar to Versal but it will
likely diverge in longer run.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/320206853dc370ce290a4e7b6d0bb26b05206021.1663589964.git.michal.simek@amd.com
diff --git a/include/configs/xilinx_versal_net.h b/include/configs/xilinx_versal_net.h
new file mode 100644
index 0000000..d9286e7
--- /dev/null
+++ b/include/configs/xilinx_versal_net.h
@@ -0,0 +1,156 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Configuration for Xilinx Versal NET
+ * Copyright (C) 2016 - 2022, Xilinx, Inc.
+ * Copyright (C) 2022, Advanced Micro Devices, Inc.
+ *
+ * Michal Simek <michal.simek@amd.com>
+ *
+ * Based on Configuration for Xilinx ZynqMP
+ */
+
+#ifndef __XILINX_VERSAL_NET_H
+#define __XILINX_VERSAL_NET_H
+
+#define CONFIG_REMAKE_ELF
+
+/* FIXME this is causing issue at least on IPP */
+/* #define CONFIG_ARMV8_SWITCH_TO_EL1 */
+
+/* Generic Interrupt Controller Definitions */
+#define GICD_BASE	0xF9000000
+#define GICR_BASE	0xF9060000
+
+#define CONFIG_SYS_INIT_SP_ADDR		CONFIG_SYS_TEXT_BASE
+
+/* Serial setup */
+#define CONFIG_CPU_ARMV8
+
+#define CONFIG_SYS_BAUDRATE_TABLE \
+	{ 4800, 9600, 19200, 38400, 57600, 115200 }
+
+/* BOOTP options */
+#define CONFIG_BOOTP_BOOTFILESIZE
+#define CONFIG_BOOTP_MAY_FAIL
+
+/* Monitor Command Prompt */
+/* Console I/O Buffer Size */
+#define CONFIG_SYS_CBSIZE		2048
+#define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE + \
+					sizeof(CONFIG_SYS_PROMPT) + 16)
+#define CONFIG_SYS_BARGSIZE		CONFIG_SYS_CBSIZE
+#define CONFIG_SYS_MAXARGS		64
+
+#if defined(CONFIG_CMD_DFU)
+#define DFU_DEFAULT_POLL_TIMEOUT	300
+#define CONFIG_THOR_RESET_OFF
+#define DFU_ALT_INFO_RAM \
+	"dfu_ram_info=" \
+	"setenv dfu_alt_info " \
+	"Image ram 80000 $kernel_size_r\\\\;" \
+	"system.dtb ram $fdt_addr_r $fdt_size_r\0" \
+	"dfu_ram=run dfu_ram_info && dfu 0 ram 0\0" \
+	"thor_ram=run dfu_ram_info && thordown 0 ram 0\0"
+
+#define DFU_ALT_INFO  \
+		DFU_ALT_INFO_RAM
+#endif
+
+#if !defined(DFU_ALT_INFO)
+# define DFU_ALT_INFO
+#endif
+
+/* Ethernet driver */
+#if defined(CONFIG_ZYNQ_GEM)
+# define CONFIG_NET_MULTI
+# define CONFIG_SYS_FAULT_ECHO_LINK_DOWN
+# define PHY_ANEG_TIMEOUT       20000
+#endif
+
+#define CONFIG_SYS_BOOTM_LEN	(60 * 1024 * 1024)
+
+#define CONFIG_CLOCKS
+
+#define ENV_MEM_LAYOUT_SETTINGS \
+	"fdt_addr_r=0x40000000\0" \
+	"fdt_size_r=0x400000\0" \
+	"pxefile_addr_r=0x10000000\0" \
+	"kernel_addr_r=0x18000000\0" \
+	"kernel_size_r=0x10000000\0" \
+	"scriptaddr=0x20000000\0" \
+	"ramdisk_addr_r=0x02100000\0" \
+	"script_size_f=0x80000\0"
+
+#if defined(CONFIG_MMC_SDHCI_ZYNQ)
+# define BOOT_TARGET_DEVICES_MMC(func)	func(MMC, mmc, 0) func(MMC, mmc, 1)
+#else
+# define BOOT_TARGET_DEVICES_MMC(func)
+#endif
+
+#if defined(CONFIG_CMD_PXE) && defined(CONFIG_CMD_DHCP)
+# define BOOT_TARGET_DEVICES_PXE(func)	func(PXE, pxe, na)
+#else
+# define BOOT_TARGET_DEVICES_PXE(func)
+#endif
+
+#if defined(CONFIG_CMD_DHCP)
+# define BOOT_TARGET_DEVICES_DHCP(func)	func(DHCP, dhcp, na)
+#else
+# define BOOT_TARGET_DEVICES_DHCP(func)
+#endif
+
+#if defined(CONFIG_ZYNQMP_GQSPI) || defined(CONFIG_CADENCE_OSPI_VERSAL_NET)
+# define BOOT_TARGET_DEVICES_XSPI(func)	func(XSPI, xspi, 0)
+#else
+# define BOOT_TARGET_DEVICES_XSPI(func)
+#endif
+
+#define BOOTENV_DEV_XSPI(devtypeu, devtypel, instance) \
+	"bootcmd_xspi0=sf probe 0 0 0 && " \
+	"sf read $scriptaddr $script_offset_f $script_size_f && " \
+	"echo XSPI: Trying to boot script at ${scriptaddr} && " \
+	"source ${scriptaddr}; echo XSPI: SCRIPT FAILED: continuing...;\0"
+
+#define BOOTENV_DEV_NAME_XSPI(devtypeu, devtypel, instance) \
+	"xspi0 "
+
+#define BOOT_TARGET_DEVICES_JTAG(func)	func(JTAG, jtag, na)
+
+#define BOOTENV_DEV_JTAG(devtypeu, devtypel, instance) \
+	"bootcmd_jtag=echo JTAG: Trying to boot script at ${scriptaddr} && " \
+		"source ${scriptaddr}; echo JTAG: SCRIPT FAILED: continuing...;\0"
+
+#define BOOTENV_DEV_NAME_JTAG(devtypeu, devtypel, instance) \
+	"jtag "
+
+#define BOOT_TARGET_DEVICES_DFU_USB(func)  func(DFU_USB, dfu_usb, 0)
+
+#define BOOTENV_DEV_DFU_USB(devtypeu, devtypel, instance) \
+	"bootcmd_dfu_usb=setenv dfu_alt_info boot.scr ram $scriptaddr " \
+	"$script_size_f; dfu 0 ram 0 && " \
+	"echo DFU: Trying to boot script at ${scriptaddr} && " \
+	"source ${scriptaddr}; " \
+	"echo DFU: SCRIPT FAILED: continuing...;\0"
+
+#define BOOTENV_DEV_NAME_DFU_USB(devtypeu, devtypel, instance) \
+	""
+
+#define BOOT_TARGET_DEVICES(func) \
+	BOOT_TARGET_DEVICES_JTAG(func) \
+	BOOT_TARGET_DEVICES_MMC(func) \
+	BOOT_TARGET_DEVICES_XSPI(func) \
+	BOOT_TARGET_DEVICES_DFU_USB(func) \
+	BOOT_TARGET_DEVICES_PXE(func) \
+	BOOT_TARGET_DEVICES_DHCP(func)
+
+#include <config_distro_bootcmd.h>
+
+/* Initial environment variables */
+#ifndef CONFIG_EXTRA_ENV_SETTINGS
+#define CONFIG_EXTRA_ENV_SETTINGS \
+	ENV_MEM_LAYOUT_SETTINGS \
+	BOOTENV \
+	DFU_ALT_INFO
+#endif
+
+#endif /* __XILINX_VERSAL_NET_H */