[U-Boot] [PATCH 1/2] zynq: Add Adapteva Parallella board support

[Nathan Rossi]

The Parallella is a single board computer showcasing the Epiphany
multi-core processor from Adapteva. The board uses a Zynq-7000 SoC which
interconnects to the Epiphany. This patch adds support for booting on
the Zynq system of the board.

More information on this board is available at: https://parallella.org/

Signed-off-by: Nathan Rossi <nathan at nathanrossi.com>
Cc: Albert Aribaud <albert.u.boot at aribaud.net>
Cc: Michal Simek <monstr at monstr.eu>
---
 arch/arm/dts/Makefile             |  1 +
 arch/arm/dts/zynq-parallella.dts  | 96 +++++++++++++++++++++++++++++++++++++++
 configs/zynq_parallella_defconfig | 36 +++++++++++++++
 include/configs/zynq_parallella.h | 17 +++++++
 4 files changed, 150 insertions(+)
 create mode 100644 arch/arm/dts/zynq-parallella.dts
 create mode 100644 configs/zynq_parallella_defconfig
 create mode 100644 include/configs/zynq_parallella.h

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 92c7545..de249a4 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -79,6 +79,7 @@ dtb-$(CONFIG_ARCH_ZYNQ) += zynq-zc702.dtb \
 	zynq-zed.dtb \
 	zynq-zybo.dtb \
 	zynq-microzed.dtb \
+	zynq-parallella.dtb \
 	zynq-picozed.dtb \
 	zynq-zc770-xm010.dtb \
 	zynq-zc770-xm011.dtb \
diff --git a/arch/arm/dts/zynq-parallella.dts b/arch/arm/dts/zynq-parallella.dts
new file mode 100644
index 0000000..2a8a805
--- /dev/null
+++ b/arch/arm/dts/zynq-parallella.dts
@@ -0,0 +1,96 @@
+/*
+ * Adapteva Parallella board DTS
+ *
+ *  Copyright (C) 2011 - 2013 Xilinx
+ *  Copyright (C) 2012 National Instruments Corp.
+ *  Copyright (C) 2014 SUSE LINUX Products GmbH
+ *  Copyright (C) 2016 Nathan Rossi
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+/dts-v1/;
+/include/ "zynq-7000.dtsi"
+
+/ {
+	model = "Adapteva Parallella Board";
+	compatible = "adapteva,parallella", "xlnx,zynq-7000";
+
+	aliases {
+		ethernet0 = &gem0;
+		serial0 = &uart1;
+		spi0 = &qspi;
+		mmc0 = &sdhci0;
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x0 0x40000000>;
+	};
+
+	chosen {
+		bootargs = "earlyprintk";
+		stdout-path = "serial0:115200n8";
+	};
+};
+
+&clkc {
+	fclk-enable = <0xf>;
+	ps-clk-frequency = <33333333>;
+};
+
+&gem0 {
+	status = "okay";
+	phy-mode = "rgmii-id";
+	phy-handle = <&ethernet_phy>;
+
+	ethernet_phy: ethernet-phy at 0 {
+		/* Marvell 88E1318 */
+		compatible = "ethernet-phy-id0141.0e90",
+		             "ethernet-phy-ieee802.3-c22";
+		reg = <0>;
+		marvell,reg-init = <0x3 0x10 0xff00 0x1e>,
+		                   <0x3 0x11 0xfff0 0xa>;
+	};
+};
+
+&i2c0 {
+	status = "okay";
+
+	isl9305: isl9305 at 68 {
+		compatible = "isil,isl9305";
+		reg = <0x68>;
+
+		regulators {
+			dcd1 {
+				regulator-name = "VDD_DSP";
+				regulator-always-on;
+			};
+			dcd2 {
+				regulator-name = "1P35V";
+				regulator-always-on;
+			};
+			ldo1 {
+				regulator-name = "VDD_ADJ";
+			};
+			ldo2 {
+				regulator-name = "VDD_GPIO";
+				regulator-always-on;
+			};
+		};
+	};
+};
+
+&sdhci1 {
+	u-boot,dm-pre-reloc;
+	status = "okay";
+};
+
+&uart1 {
+	u-boot,dm-pre-reloc;
+	status = "okay";
+};
+
+&qspi {
+	u-boot,dm-pre-reloc;
+	status = "okay";
+};
diff --git a/configs/zynq_parallella_defconfig b/configs/zynq_parallella_defconfig
new file mode 100644
index 0000000..fe05c82
--- /dev/null
+++ b/configs/zynq_parallella_defconfig
@@ -0,0 +1,36 @@
+CONFIG_ARM=y
+CONFIG_SYS_CONFIG_NAME="zynq_parallella"
+CONFIG_ARCH_ZYNQ=y
+CONFIG_DEFAULT_DEVICE_TREE="zynq-parallella"
+CONFIG_SPL=y
+CONFIG_FIT=y
+CONFIG_FIT_VERBOSE=y
+CONFIG_FIT_SIGNATURE=y
+CONFIG_HUSH_PARSER=y
+CONFIG_SYS_PROMPT="Parallella> "
+# CONFIG_CMD_IMLS is not set
+# CONFIG_CMD_FLASH is not set
+CONFIG_CMD_MMC=y
+CONFIG_CMD_SF=y
+CONFIG_CMD_GPIO=y
+# CONFIG_CMD_SETEXPR is not set
+CONFIG_CMD_TFTPPUT=y
+CONFIG_CMD_DHCP=y
+CONFIG_CMD_MII=y
+CONFIG_CMD_PING=y
+CONFIG_CMD_CACHE=y
+CONFIG_CMD_EXT2=y
+CONFIG_CMD_EXT4=y
+CONFIG_CMD_EXT4_WRITE=y
+CONFIG_CMD_FAT=y
+CONFIG_CMD_FS_GENERIC=y
+CONFIG_NET_RANDOM_ETHADDR=y
+CONFIG_SPL_DM_SEQ_ALIAS=y
+CONFIG_ZYNQ_SDHCI=y
+CONFIG_SPI_FLASH=y
+CONFIG_SPI_FLASH_BAR=y
+CONFIG_SPI_FLASH_SPANSION=y
+CONFIG_SPI_FLASH_STMICRO=y
+CONFIG_SPI_FLASH_WINBOND=y
+CONFIG_ZYNQ_GEM=y
+CONFIG_ZYNQ_QSPI=y
diff --git a/include/configs/zynq_parallella.h b/include/configs/zynq_parallella.h
new file mode 100644
index 0000000..f7d17b8
--- /dev/null
+++ b/include/configs/zynq_parallella.h
@@ -0,0 +1,17 @@
+/*
+ * (C) Copyright 2016 Nathan Rossi
+ *
+ * Configuration for Adapteva Parallella Board
+ * See zynq-common.h for Zynq common configs
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __CONFIG_ZYNQ_PARALLELLA_H
+#define __CONFIG_ZYNQ_PARALLELLA_H
+
+#define CONFIG_SYS_NO_FLASH
+
+#include <configs/zynq-common.h>
+
+#endif /* __CONFIG_ZYNQ_PARALLELLA_H */
-- 
2.8.1