arm: SC589-EZKIT initial support

Adds support for Analog Devices' SC589-EZKIT board. Includes:
- Board specific configs in mach-sc5xx/Kconfig
- Board-specific Kconfig and environment in board/adi/
- Memory configuration

Signed-off-by: Oliver Gaskell <Oliver.Gaskell@analog.com>
diff --git a/board/adi/sc589-ezkit/Kconfig b/board/adi/sc589-ezkit/Kconfig
new file mode 100644
index 0000000..b5f555f
--- /dev/null
+++ b/board/adi/sc589-ezkit/Kconfig
@@ -0,0 +1,116 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# (C) Copyright 2024 - Analog Devices, Inc.
+
+if TARGET_SC589_EZKIT
+
+config LDR_CPU
+	default	"ADSP-SC589-0.1"
+
+config SYS_BOARD
+	default "sc589-ezkit"
+
+config SYS_CONFIG_NAME
+	default "sc589"
+
+config DEFAULT_DEVICE_TREE
+	default "sc589-ezkit"
+
+config ADI_IMAGE
+	default "tiny"
+
+config CUSTOM_SYS_INIT_SP_ADDR
+	default 0xC203f000
+
+# SPI Flash
+
+config SF_DEFAULT_BUS
+	default 2
+
+config SF_DEFAULT_CS
+	default 1
+
+config SF_DEFAULT_SPEED
+	default 10000000
+
+# Clocks
+
+config CGU0_DF_DIV
+	default 0
+
+config CGU0_VCO_MULT
+	default 18
+
+config CGU0_CCLK_DIV
+	default 1
+
+config CGU0_SCLK_DIV
+	default 2
+
+config CGU0_SCLK0_DIV
+	default 2
+
+config CGU0_SCLK1_DIV
+	default 2
+
+config CGU0_DCLK_DIV
+	default 1
+
+config CGU0_OCLK_DIV
+	default 3
+
+config CGU1_VCO_MULT
+	default 5
+
+config CGU1_DF_DIV
+	default 0
+
+config CGU1_CCLK_DIV
+	default 1
+
+config CGU1_SCLK_DIV
+	default 2
+
+config CGU1_SCLK0_DIV
+	default 2
+
+config CGU1_SCLK1_DIV
+	default 2
+
+config CGU1_DCLK_DIV
+	default 2
+
+config CGU1_OCLK_DIV
+	default 3
+
+config CDU0_CLKO0
+	default 1
+
+config CDU0_CLKO1
+	default 1
+
+config CDU0_CLKO2
+	default 1
+
+config CDU0_CLKO3
+	default 1
+
+config CDU0_CLKO4
+	default 1
+
+config CDU0_CLKO5
+	default 1
+
+config CDU0_CLKO6
+	default 1
+
+config CDU0_CLKO7
+	default 5
+
+config CDU0_CLKO8
+	default 1
+
+config CDU0_CLKO9
+	default 1
+
+endif