[U-Boot] [PATCH 8/8] xtensa: add support for the 'xtfpga' evaluation board
Max Filippov
jcmvbkbc at gmail.com
Fri Jul 8 17:42:06 CEST 2016
From: Chris Zankel <chris at zankel.net>
The 'xtfpga' board is actually a set of FPGA evaluation boards that
can be configured to run an Xtensa processor.
- Avnet Xilinx LX60
- Avnet Xilinx LX110
- Avnet Xilinx LX200
- Xilinx ML605
- Xilinx KC705
These boards share the same components (open-ethernet, ns16550 serial,
lcd display, flash, etc.).
Signed-off-by: Chris Zankel <chris at zankel.net>
Signed-off-by: Max Filippov <jcmvbkbc at gmail.com>
---
arch/xtensa/Kconfig | 3 +
arch/xtensa/dts/Makefile | 2 +
arch/xtensa/dts/kc705.dts | 15 ++
arch/xtensa/dts/kc705_nommu.dts | 17 ++
arch/xtensa/dts/ml605.dts | 15 ++
arch/xtensa/dts/ml605_nommu.dts | 18 +++
arch/xtensa/dts/xtfpga-flash-128m.dtsi | 28 ++++
arch/xtensa/dts/xtfpga-flash-16m.dtsi | 28 ++++
arch/xtensa/dts/xtfpga.dtsi | 137 ++++++++++++++++
board/cadence/xtfpga/Kconfig | 43 +++++
board/cadence/xtfpga/MAINTAINERS | 6 +
board/cadence/xtfpga/Makefile | 8 +
board/cadence/xtfpga/README | 125 ++++++++++++++
board/cadence/xtfpga/lcd.c | 88 ++++++++++
board/cadence/xtfpga/lcd.h | 12 ++
board/cadence/xtfpga/xtfpga.c | 173 ++++++++++++++++++++
configs/xtfpga_defconfig | 13 ++
include/configs/xtfpga.h | 286 +++++++++++++++++++++++++++++++++
18 files changed, 1017 insertions(+)
create mode 100644 arch/xtensa/dts/kc705.dts
create mode 100644 arch/xtensa/dts/kc705_nommu.dts
create mode 100644 arch/xtensa/dts/ml605.dts
create mode 100644 arch/xtensa/dts/ml605_nommu.dts
create mode 100644 arch/xtensa/dts/xtfpga-flash-128m.dtsi
create mode 100644 arch/xtensa/dts/xtfpga-flash-16m.dtsi
create mode 100644 arch/xtensa/dts/xtfpga.dtsi
create mode 100644 board/cadence/xtfpga/Kconfig
create mode 100644 board/cadence/xtfpga/MAINTAINERS
create mode 100644 board/cadence/xtfpga/Makefile
create mode 100644 board/cadence/xtfpga/README
create mode 100644 board/cadence/xtfpga/lcd.c
create mode 100644 board/cadence/xtfpga/lcd.h
create mode 100644 board/cadence/xtfpga/xtfpga.c
create mode 100644 configs/xtfpga_defconfig
create mode 100644 include/configs/xtfpga.h
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index e4e3625..d41949f 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -11,9 +11,12 @@ config SYS_CPU
choice
prompt "Target select"
+config TARGET_XTFPGA
+ bool "Support XTFPGA"
endchoice
+source "board/cadence/xtfpga/Kconfig"
config HAVE_SYS_ASCDISP
bool
diff --git a/arch/xtensa/dts/Makefile b/arch/xtensa/dts/Makefile
index eacf6f3..e14cdac 100644
--- a/arch/xtensa/dts/Makefile
+++ b/arch/xtensa/dts/Makefile
@@ -2,6 +2,8 @@
# SPDX-License-Identifier: GPL-2.0+
#
+dtb-$(CONFIG_XTFPGA) += ml605.dtb ml605_nommu.dtb kc705.dtb kc705_nommu.dtb
+
targets += $(dtb-y)
DTC_FLAGS +=
diff --git a/arch/xtensa/dts/kc705.dts b/arch/xtensa/dts/kc705.dts
new file mode 100644
index 0000000..3b89e83
--- /dev/null
+++ b/arch/xtensa/dts/kc705.dts
@@ -0,0 +1,15 @@
+/dts-v1/;
+/include/ "xtfpga.dtsi"
+/include/ "xtfpga-flash-128m.dtsi"
+
+/ {
+ compatible = "cdns,xtensa-kc705";
+ chosen {
+ bootargs = "earlycon=uart8250,mmio32native,0xfd050020,115200n8 console=ttyS0,115200n8 ip=dhcp root=/dev/nfs rw debug";
+ stdout-path = &serial0;
+ };
+ memory at 0 {
+ device_type = "memory";
+ reg = <0x00000000 0x38000000>;
+ };
+};
diff --git a/arch/xtensa/dts/kc705_nommu.dts b/arch/xtensa/dts/kc705_nommu.dts
new file mode 100644
index 0000000..57f0dab
--- /dev/null
+++ b/arch/xtensa/dts/kc705_nommu.dts
@@ -0,0 +1,17 @@
+/dts-v1/;
+/include/ "xtfpga.dtsi"
+/include/ "xtfpga-flash-128m.dtsi"
+
+/ {
+ compatible = "cdns,xtensa-kc705";
+ chosen {
+ bootargs = "earlycon=uart8250,mmio32native,0x9d050020,115200n8 console=ttyS0,115200n8 ip=dhcp root=/dev/nfs rw debug";
+ };
+ memory at 0 {
+ device_type = "memory";
+ reg = <0x60000000 0x10000000>;
+ };
+ soc {
+ ranges = <0x00000000 0x90000000 0x10000000>;
+ };
+};
diff --git a/arch/xtensa/dts/ml605.dts b/arch/xtensa/dts/ml605.dts
new file mode 100644
index 0000000..f323f96
--- /dev/null
+++ b/arch/xtensa/dts/ml605.dts
@@ -0,0 +1,15 @@
+/dts-v1/;
+/include/ "xtfpga.dtsi"
+/include/ "xtfpga-flash-16m.dtsi"
+
+/ {
+ compatible = "cdns,xtensa-ml605";
+ chosen {
+ bootargs = "earlycon=uart8250,mmio32native,0xfd050020,115200n8 console=ttyS0,115200n8 ip=dhcp root=/dev/nfs rw debug";
+ stdout-path = &serial0;
+ };
+ memory at 0 {
+ device_type = "memory";
+ reg = <0x00000000 0x18000000>;
+ };
+};
diff --git a/arch/xtensa/dts/ml605_nommu.dts b/arch/xtensa/dts/ml605_nommu.dts
new file mode 100644
index 0000000..6bdf400
--- /dev/null
+++ b/arch/xtensa/dts/ml605_nommu.dts
@@ -0,0 +1,18 @@
+/dts-v1/;
+/include/ "xtfpga.dtsi"
+/include/ "xtfpga-flash-16m.dtsi"
+
+/ {
+ compatible = "cdns,xtensa-ml605";
+ chosen {
+ bootargs = "earlycon=uart8250,mmio32native,0x9d050020,115200n8 console=ttyS0,115200n8 ip=dhcp root=/dev/nfs rw debug";
+ stdout-path = &serial0;
+ };
+ memory at 0 {
+ device_type = "memory";
+ reg = <0x00000000 0x10000000>;
+ };
+ soc {
+ ranges = <0x00000000 0x90000000 0x10000000>;
+ };
+};
diff --git a/arch/xtensa/dts/xtfpga-flash-128m.dtsi b/arch/xtensa/dts/xtfpga-flash-128m.dtsi
new file mode 100644
index 0000000..d3a88e0
--- /dev/null
+++ b/arch/xtensa/dts/xtfpga-flash-128m.dtsi
@@ -0,0 +1,28 @@
+/ {
+ soc {
+ flash: flash at 00000000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "cfi-flash";
+ reg = <0x00000000 0x08000000>;
+ bank-width = <2>;
+ device-width = <2>;
+ partition at 0x0 {
+ label = "data";
+ reg = <0x00000000 0x06000000>;
+ };
+ partition at 0x6000000 {
+ label = "boot loader area";
+ reg = <0x06000000 0x00800000>;
+ };
+ partition at 0x6800000 {
+ label = "kernel image";
+ reg = <0x06800000 0x017e0000>;
+ };
+ partition at 0x7fe0000 {
+ label = "boot environment";
+ reg = <0x07fe0000 0x00020000>;
+ };
+ };
+ };
+};
diff --git a/arch/xtensa/dts/xtfpga-flash-16m.dtsi b/arch/xtensa/dts/xtfpga-flash-16m.dtsi
new file mode 100644
index 0000000..1d97203
--- /dev/null
+++ b/arch/xtensa/dts/xtfpga-flash-16m.dtsi
@@ -0,0 +1,28 @@
+/ {
+ soc {
+ flash: flash at 08000000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "cfi-flash";
+ reg = <0x08000000 0x01000000>;
+ bank-width = <2>;
+ device-width = <2>;
+ partition at 0x0 {
+ label = "boot loader area";
+ reg = <0x00000000 0x00400000>;
+ };
+ partition at 0x400000 {
+ label = "kernel image";
+ reg = <0x00400000 0x00600000>;
+ };
+ partition at 0xa00000 {
+ label = "data";
+ reg = <0x00a00000 0x005e0000>;
+ };
+ partition at 0xfe0000 {
+ label = "boot environment";
+ reg = <0x00fe0000 0x00020000>;
+ };
+ };
+ };
+};
diff --git a/arch/xtensa/dts/xtfpga.dtsi b/arch/xtensa/dts/xtfpga.dtsi
new file mode 100644
index 0000000..cd45f9c
--- /dev/null
+++ b/arch/xtensa/dts/xtfpga.dtsi
@@ -0,0 +1,137 @@
+/ {
+ compatible = "cdns,xtensa-xtfpga";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ interrupt-parent = <&pic>;
+
+ chosen {
+ bootargs = "earlycon=uart8250,mmio32native,0xfd050020,115200n8 console=ttyS0,115200n8 ip=dhcp root=/dev/nfs rw debug";
+ };
+
+ memory at 0 {
+ device_type = "memory";
+ reg = <0x00000000 0x06000000>;
+ };
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ cpu at 0 {
+ compatible = "cdns,xtensa-cpu";
+ reg = <0>;
+ /* Filled in by platform_setup from FPGA register
+ * clock-frequency = <100000000>;
+ */
+ };
+ };
+
+ pic: pic {
+ compatible = "cdns,xtensa-pic";
+ /* one cell: internal irq number,
+ * two cells: second cell == 0: internal irq number
+ * second cell == 1: external irq number
+ */
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ };
+
+ clocks {
+ osc: main-oscillator {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ };
+
+ clk54: clk54 {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <54000000>;
+ };
+ };
+
+ soc {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "simple-bus";
+ ranges = <0x00000000 0xf0000000 0x10000000>;
+
+ serial0: serial at 0d050020 {
+ device_type = "serial";
+ compatible = "ns16550a";
+ no-loopback-test;
+ reg = <0x0d050020 0x20>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ native-endian;
+ interrupts = <0 1>; /* external irq 0 */
+ clocks = <&osc>;
+ };
+
+ enet0: ethoc at 0d030000 {
+ compatible = "opencores,ethoc";
+ reg = <0x0d030000 0x4000 0x0d800000 0x4000>;
+ native-endian;
+ interrupts = <1 1>; /* external irq 1 */
+ local-mac-address = [00 50 c2 13 6f 00];
+ clocks = <&osc>;
+ };
+
+ i2s0: xtfpga-i2s at 0d080000 {
+ #sound-dai-cells = <0>;
+ compatible = "cdns,xtfpga-i2s";
+ reg = <0x0d080000 0x40>;
+ interrupts = <2 1>; /* external irq 2 */
+ clocks = <&cdce706 4>;
+ };
+
+ i2c0: i2c-master at 0d090000 {
+ compatible = "opencores,i2c-ocores";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x0d090000 0x20>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ native-endian;
+ interrupts = <4 1>;
+ clocks = <&osc>;
+
+ cdce706: clock-synth at 69 {
+ compatible = "ti,cdce706";
+ #clock-cells = <1>;
+ reg = <0x69>;
+ clocks = <&clk54>;
+ clock-names = "clk_in0";
+ };
+ };
+
+ spi0: spi-master at 0d0a0000 {
+ compatible = "cdns,xtfpga-spi";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x0d0a0000 0xc>;
+
+ tlv320aic23: sound-codec at 0 {
+ #sound-dai-cells = <0>;
+ compatible = "tlv320aic23";
+ reg = <0>;
+ spi-max-frequency = <12500000>;
+ };
+ };
+ };
+
+ sound {
+ compatible = "simple-audio-card";
+ simple-audio-card,format = "i2s";
+ simple-audio-card,mclk-fs = <256>;
+
+ simple-audio-card,cpu {
+ sound-dai = <&i2s0>;
+ };
+
+ simple-audio-card,codec {
+ sound-dai = <&tlv320aic23>;
+ simple-audio-card,bitclock-master = <0>;
+ simple-audio-card,frame-master = <0>;
+ clocks = <&cdce706 4>;
+ };
+ };
+};
diff --git a/board/cadence/xtfpga/Kconfig b/board/cadence/xtfpga/Kconfig
new file mode 100644
index 0000000..a7b65ef
--- /dev/null
+++ b/board/cadence/xtfpga/Kconfig
@@ -0,0 +1,43 @@
+if TARGET_XTFPGA
+
+choice
+ prompt "XTFPGA board type select"
+
+config XTFPGA_LX60
+ bool "Support Avnet LX60"
+ select HAVE_SYS_ASCDISP
+config XTFPGA_LX110
+ bool "Support Avnet LX110"
+ select HAVE_SYS_ASCDISP
+config XTFPGA_LX200
+ bool "Support Avnet LX200"
+config XTFPGA_ML605
+ bool "Support Xilinx ML605"
+ select HAVE_SYS_ASCDISP
+config XTFPGA_KC705
+ bool "Support Xilinx KC705"
+ select HAVE_SYS_ASCDISP
+
+endchoice
+
+config SYS_BOARD
+ string
+ default "xtfpga"
+
+config SYS_VENDOR
+ string
+ default "cadence"
+
+config SYS_CONFIG_NAME
+ string
+ default "xtfpga"
+
+config BOARD_SDRAM_SIZE
+ hex
+ default 0x04000000 if XTFPGA_LX60
+ default 0x03000000 if XTFPGA_LX110
+ default 0x06000000 if XTFPGA_LX200
+ default 0x18000000 if XTFPGA_ML605
+ default 0x38000000 if XTFPGA_KC705
+
+endif
diff --git a/board/cadence/xtfpga/MAINTAINERS b/board/cadence/xtfpga/MAINTAINERS
new file mode 100644
index 0000000..31f5257
--- /dev/null
+++ b/board/cadence/xtfpga/MAINTAINERS
@@ -0,0 +1,6 @@
+XTFPGA BOARD
+M: Max Filippov <jcmvbkbc at gmail.com>
+S: Maintained
+F: board/cadence/xtfpga/
+F: include/configs/xtfpga.h
+F: configs/xtfpga_defconfig
diff --git a/board/cadence/xtfpga/Makefile b/board/cadence/xtfpga/Makefile
new file mode 100644
index 0000000..c521a80
--- /dev/null
+++ b/board/cadence/xtfpga/Makefile
@@ -0,0 +1,8 @@
+#
+# (C) Copyright 2007 - 2013, Tensilica Inc.
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+obj-y += ${BOARD}.o
+obj-$(CONFIG_SYS_ASCDISP) += lcd.o
diff --git a/board/cadence/xtfpga/README b/board/cadence/xtfpga/README
new file mode 100644
index 0000000..5f29e25
--- /dev/null
+++ b/board/cadence/xtfpga/README
@@ -0,0 +1,125 @@
+ Tensilica 'xtfpga' Evaluation Boards
+ ====================================
+
+Tensilica's 'xtfpga' evaluation boards are actually a set of different
+boards that share configurations. The following is a list of supported
+hardware by this board type:
+
+- XT-AV60 / LX60
+- XT-AV110 / LX110
+- XT-AV200 / LX200
+- ML605
+- KC705
+
+All boards provide the following common configurations:
+
+- An Xtensa or Diamond processor core.
+- An on-chip-debug (OCD) JTAG interface.
+- A 16550 compatible UART and serial port.
+- An OpenCores Wishbone 10/100-base-T ethernet interface.
+- A 32 char two line LCD display. (except for the LX200)
+
+LX60/LX110/LX200:
+
+- Virtex-4 (XC4VLX60 / XCV4LX200) / Virtext-5 (XC5VLX110)
+- 128MB / 64MB (LX60) memory
+- 16MB / 4MB (LX60) Linear Flash
+
+ML605
+
+- Virtex-6 (XC6VLX240T)
+- 512MB DDR3 memory
+- 16MB Linear BPI Flash
+
+KC705 (Xilinx)
+
+- Kintex-7 XC7K325T FPGA
+- 1GB DDR3 memory
+- 128MB Linear BPI Flash
+
+
+Setting up the Board
+--------------------
+
+The serial port defaults to 115200 baud, no parity and 1 stop bit.
+A terminal emulator must be set accordingly to see the U-Boot prompt.
+
+
+Board Configurations LX60/LX110/LX200/ML605/KC705
+-------------------------------------------------
+
+The LX60/LX110/LX200/ML605 contain an 8-way DIP switch that controls
+the boot mapping and selects from a range of default ethernet MAC
+addresses.
+
+Boot Mapping (DIP switch 8):
+
+ DIP switch 8 maps the system ROM address space (in which the
+ reset vector resides) to either SRAM (off, 0, down) or Flash
+ (on, 1, up). This mapping is implemented in the FPGA bitstream
+ and cannot be disabled by software, therefore DIP switch 8 is no
+ available for application use. Note DIP switch 7 is reserved by
+ Tensilica for future possible hardware use.
+
+ Mapping to SRAM allows U-Boot to be debugged with an OCD/JTAG
+ tool such as the Xtensa OCD Daemon connected via a suppored probe.
+ See the tools documentation for supported probes and how to
+ connect them. Be aware that the board has only 128 KB of SRAM,
+ therefore U-Boot must fit within this space to debug an image
+ intended for the Flash. This issues is discussed in a separate
+ section toward the end.
+
+ Mapping to flash allows U-Boot to start on reset, provided it
+ has been programmed into the first two 64 KB sectors of the Flash.
+
+ The Flash is always mapped at a device (memory mapped I/O) address
+ (the address is board specific and is expressed as CFG_FLASH_BASE).
+ The device address is used by U-Boot to program the flash, and may
+ be used to specify an application to run or U-Boot image to boot.
+
+Default MAC Address (DIP switches 1-6):
+
+ When the board is first powered on, or after the environment has
+ been reinitialized, the ethernet MAC address receives a default
+ value whose least significant 6 bits come from DIP switches 1-6.
+ The default is 00:50:C2:13:6F:xx where xx ranges from 0..3F
+ according to the DIP switches, where "on"==1 and "off"==0, and
+ switch 1 is the least-significant bit.
+
+ After initial startup, the MAC address is stored in the U-Boot
+ environment variable 'ethaddr'. The user may change this to any
+ other address with the "setenv" comamnd. After the environment
+ has been saved to Flash by the "saveenv" command, this will be
+ used and the DIP switches no longer consulted. DIP swithes 1-6
+ may then be used for application purposes.
+
+The KC705 board contains 4-way DIP switch, way 1 is the boot mapping
+switch and ways 2-4 control the low three bits of the MAC address.
+
+
+Limitation of SDRAM Size for OCD Debugging on the LX60
+------------------------------------------------------
+
+The XT-AV60 board has only 128 KB of SDRAM that can be mapped
+to the system ROM address space for debugging a ROM image under
+OCD/JTAG. This limits the useful size of U-Boot to 128 KB (0x20000)
+or the first 2 sectors of the flash.
+
+This can pose a problem if all the sources are compiled with -O0
+for debugging. The code size is then too large, in which case it
+would be necessary to temporarily alter the linker script to place
+the load addresses (LMA) in the RAM (VMA) so that OCD loads U-Boot
+directly there and does not unpack. In practice this is not really
+necessary as long as only a limited set of sources need to be
+debugged, because the image can still fit into the 128 KB SRAM.
+
+The recommended procedure for debugging is to first build U-Boot
+with the default optimization level (-Os), and then touch and
+rebuild incrementally with -O0 so that only the touched sources
+are recompiled with -O0. To build with -O0, pass it in the KCFLAGS
+variable to make.
+
+Because this problem is easy to fall into and difficult to debug
+if one doesn't expect it, the linker script provides a link-time
+check and fatal error message if the image size exceeds 128 KB.
+
diff --git a/board/cadence/xtfpga/lcd.c b/board/cadence/xtfpga/lcd.c
new file mode 100644
index 0000000..4ea06bb
--- /dev/null
+++ b/board/cadence/xtfpga/lcd.c
@@ -0,0 +1,88 @@
+/*
+ * Driver for the LCD display on the Tensilica XT-AV60 Board.
+ *
+ * Copyright (C) 2001 - 2013 Tensilica Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+/*
+ * The LCD functions busy wait due to limitations of the LCD controller.
+ * This is a single-threaded boot-loader, so we don't care about that.
+ */
+
+
+#include <config.h>
+#include <common.h>
+
+#define LCD_INSTR_ADDR (char *)(CONFIG_SYS_ASCDISP_ADDR + 0)
+#define LCD_DATA_ADDR (char *)(CONFIG_SYS_ASCDISP_ADDR + 4)
+
+#define LCD_PAUSE_ITERATIONS 4000
+#define LCD_CLEAR 0x1
+#define LCD_DISPLAY_ON 0xc
+
+/* The KC704 requires 4-bit mode */
+#ifdef CONFIG_XTFPGA_KC705
+# define LCD_DISPLAY_FUNC 0x28 /* 4 bits and 2 lines display */
+# define LCD_DISPLAY_MODE 0x06 /* increase, not-shifted */
+#else
+# define LCD_DISPLAY_FUNC 0x38 /* 8 bits and 2 lines display */
+# define LCD_DISPLAY_MODE 0x06 /* increase, not-shifted */
+#endif
+
+#define LCD_SHIFT_LEFT 0x18
+#define LCD_SHIFT_RIGHT 0x1c
+#define LCD_DISPLAY_POS 0x80
+
+#ifdef CONFIG_XTFPGA_KC705
+static inline void lcd_write(char *addr, char value)
+{
+ *addr = value;
+ udelay(500);
+ *addr = value << 4;
+ udelay(500);
+}
+#else
+static inline void lcd_write(char *addr, char value)
+{
+ *addr = value;
+ udelay(500);
+}
+#endif
+
+void lcd_init(void)
+{
+ /* switching back to 8-bit mode needs at least 3 writes */
+ *LCD_INSTR_ADDR = 0x33;
+ udelay(500);
+ *LCD_INSTR_ADDR = 0x33;
+ udelay(500);
+ *LCD_INSTR_ADDR = 0x33;
+ udelay(500);
+ *LCD_INSTR_ADDR = LCD_DISPLAY_FUNC;
+ udelay(500);
+ lcd_write(LCD_INSTR_ADDR, LCD_DISPLAY_FUNC);
+ lcd_write(LCD_INSTR_ADDR, LCD_DISPLAY_ON);
+ lcd_write(LCD_INSTR_ADDR, LCD_DISPLAY_MODE);
+ lcd_write(LCD_INSTR_ADDR, LCD_CLEAR);
+ udelay(2000);
+}
+
+void lcd_disp_at_pos(char *str, char pos)
+{
+ lcd_write(LCD_INSTR_ADDR, LCD_DISPLAY_POS | pos);
+ udelay(100);
+ while (*str != 0)
+ lcd_write(LCD_DATA_ADDR, *str++);
+}
+
+void lcd_shiftleft(void)
+{
+ lcd_write(LCD_INSTR_ADDR, LCD_SHIFT_LEFT);
+}
+
+void lcd_shiftright(void)
+{
+ lcd_write(LCD_INSTR_ADDR, LCD_SHIFT_RIGHT);
+}
diff --git a/board/cadence/xtfpga/lcd.h b/board/cadence/xtfpga/lcd.h
new file mode 100644
index 0000000..878b740
--- /dev/null
+++ b/board/cadence/xtfpga/lcd.h
@@ -0,0 +1,12 @@
+/*
+ * Driver for the LCD display on the Tensilica LX60 Board.
+ *
+ * Copyright (C) 2001 - 2013 Tensilica Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+void lcd_init(void);
+void lcd_disp_at_pos(char *, unsigned char);
+void lcd_shiftleft(void);
+void lcd_shiftright(void);
diff --git a/board/cadence/xtfpga/xtfpga.c b/board/cadence/xtfpga/xtfpga.c
new file mode 100644
index 0000000..35de2f3
--- /dev/null
+++ b/board/cadence/xtfpga/xtfpga.c
@@ -0,0 +1,173 @@
+/*
+ * (C) Copyright 2007 - 2013 Tensilica Inc.
+ * (C) Copyright 2014 - 2016 Cadence Design Systems Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+#include <linux/ctype.h>
+#include <linux/string.h>
+#include <linux/stringify.h>
+#include <asm/xtensa.h>
+#include <asm/global_data.h>
+#include <netdev.h>
+
+#include "lcd.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * Check board idendity.
+ * (Print information about the board to stdout.)
+ */
+
+
+#if defined(CONFIG_XTFPGA_LX60)
+const char *board = "XT_AV60";
+const char *description = "Avnet Xilinx LX60 FPGA Evaluation Board / ";
+#elif defined(CONFIG_XTFPGA_LX110)
+const char *board = "XT_AV110";
+const char *description = "Avnet Xilinx Virtex-5 LX110 Evaluation Kit / ";
+#elif defined(CONFIG_XTFPGA_LX200)
+const char *board = "XT_AV200";
+const char *description = "Avnet Xilinx Virtex-4 LX200 Evaluation Kit / ";
+#elif defined(CONFIG_XTFPGA_ML605)
+const char *board = "XT_ML605";
+const char *description = "Xilinx Virtex-6 FPGA ML605 Evaluation Kit / ";
+#elif defined(CONFIG_XTFPGA_KC705)
+const char *board = "XT_KC705";
+const char *description = "Xilinx Kintex-7 FPGA KC705 Evaluation Kit / ";
+#else
+const char *board = "<unknown>";
+const char *description = "";
+#endif
+
+int checkboard(void)
+{
+ printf("Board: %s: %sTensilica bitstream\n", board, description);
+ return 0;
+}
+
+void dram_init_banksize(void)
+{
+ gd->bd->bi_memstart = PHYSADDR(CONFIG_SYS_SDRAM_BASE);
+ gd->bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
+}
+
+int board_postclk_init(void)
+{
+ /*
+ * Obtain CPU clock frequency from board and cache in global
+ * data structure (Hz). Return 0 on success (OK to continue),
+ * else non-zero (hang).
+ */
+
+#ifdef CONFIG_SYS_FPGAREG_FREQ
+ gd->cpu_clk = (*(volatile unsigned long *)CONFIG_SYS_FPGAREG_FREQ);
+#else
+ /* early Tensilica bitstreams lack this reg, but most run at 50 MHz */
+ gd->cpu_clk = 50000000UL;
+#endif
+ return 0;
+}
+
+/*
+ * Miscellaneous early initializations.
+ * We use this hook to initialize the LCD display.
+ */
+
+int misc_init_f(void)
+{
+#ifdef CONFIG_SYS_ASCDISP
+ /* Initialize the LCD. */
+
+ lcd_init();
+#endif
+ display_printf("U-Boot starting", NULL);
+
+ return 0;
+}
+
+/*
+ * Miscellaneous late initializations.
+ * The environment has been set up, so we can set the Ethernet address.
+ */
+
+int misc_init_r(void)
+{
+#ifdef CONFIG_CMD_NET
+ /*
+ * Initialize ethernet environment variables and board info.
+ * Default MAC address comes from CONFIG_ETHADDR + DIP switches 1-6.
+ */
+
+ char *s = getenv("ethaddr");
+ if (s == 0) {
+ unsigned int x;
+ char s[] = __stringify(CONFIG_ETHBASE);
+ x = (*(volatile u32 *)CONFIG_SYS_FPGAREG_DIPSW)
+ & FPGAREG_MAC_MASK;
+ sprintf(&s[15], "%02x", x);
+ setenv("ethaddr", s);
+ }
+#endif /* CONFIG_CMD_NET */
+
+ return 0;
+}
+
+#ifdef CONFIG_CMD_NET
+int board_eth_init(bd_t *bis)
+{
+ return ethoc_initialize(0, CONFIG_SYS_ETHOC_BASE);
+}
+#endif
+
+
+/*
+ * Print a formatted string to the board's ASCII character display.
+ * String may have embedded newlines. Starts at top left and wraps long lines.
+ */
+
+#ifdef CONFIG_SYS_ASCDISP
+void display_printf(const char *fmt, ...)
+{
+ va_list args;
+
+ /* Warning: sprintf() can overflow this buffer if too small! */
+ char buf[CONFIG_SYS_ASCDISP_BUFSZ];
+ int i;
+
+ va_start(args, fmt);
+ vsprintf(buf, fmt, args);
+
+ /* Truncate to one line and pad line with blanks. */
+ for (i = 0;
+ i < CONFIG_SYS_ASCDISP_BUFSZ-1 && buf[i] != '\0' && buf[i] != '\n';
+ ++i)
+ ;
+ for (; i < CONFIG_SYS_ASCDISP_CHARS; ++i)
+ buf[i] = ' ';
+ buf[CONFIG_SYS_ASCDISP_CHARS] = 0;
+
+ lcd_disp_at_pos(buf, 0);
+
+ va_end(args);
+}
+#endif
+
+#ifdef CONFIG_SHOW_BOOT_PROGRESS
+/* Display a boot progress number on the LCD display. */
+void show_boot_progress(int val)
+{
+ display_printf("Progress = %d", val);
+}
+#endif
+
+/* Implement the "reset" command. */
+void board_reset(void)
+{
+ *(vu_long *)CONFIG_SYS_FPGAREG_RESET = CONFIG_SYS_FPGAREG_RESET_CODE;
+ /* Shouldn't reach here. */
+}
diff --git a/configs/xtfpga_defconfig b/configs/xtfpga_defconfig
new file mode 100644
index 0000000..31352d7
--- /dev/null
+++ b/configs/xtfpga_defconfig
@@ -0,0 +1,13 @@
+CONFIG_XTENSA=y
+CONFIG_SYS_CPU="dc233c"
+CONFIG_XTFPGA_KC705=y
+CONFIG_BOOTDELAY=10
+CONFIG_SYS_PROMPT="U-Boot> "
+CONFIG_AUTOBOOT_KEYED=y
+CONFIG_AUTOBOOT_PROMPT="Autobooting in %d seconds, press <SPACE> to stop\n"
+CONFIG_AUTOBOOT_STOP_STR=" "
+CONFIG_CMD_ASKENV=y
+CONFIG_CMD_DHCP=y
+CONFIG_CMD_PING=y
+CONFIG_SYS_NS16550=y
+CONFIG_OF_LIBFDT=y
diff --git a/include/configs/xtfpga.h b/include/configs/xtfpga.h
new file mode 100644
index 0000000..0cfe92b
--- /dev/null
+++ b/include/configs/xtfpga.h
@@ -0,0 +1,286 @@
+/*
+ * Copyright (C) 2007-2013 Tensilica, Inc.
+ * Copyright (C) 2014 - 2016 Cadence Design Systems Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#include <asm/arch/core.h>
+#include <asm/addrspace.h>
+#include <asm/config.h>
+
+/*
+ * The 'xtfpga' board describes a set of very similar boards with only minimal
+ * differences.
+ */
+
+/*=====================*/
+/* Board and Processor */
+/*=====================*/
+
+#define CONFIG_XTFPGA
+
+/* FPGA CPU freq after init */
+#define CONFIG_SYS_CLK_FREQ (gd->cpu_clk)
+
+/*===================*/
+/* RAM Layout */
+/*===================*/
+
+#if XCHAL_HAVE_PTP_MMU
+#define CONFIG_SYS_MEMORY_BASE \
+ (XCHAL_VECBASE_RESET_VADDR - XCHAL_VECBASE_RESET_PADDR)
+#define CONFIG_SYS_IO_BASE 0xf0000000
+#else
+#define CONFIG_SYS_MEMORY_BASE 0x60000000
+#define CONFIG_SYS_IO_BASE 0x90000000
+#define CONFIG_MAX_MEM_MAPPED 0x10000000
+#endif
+
+/* Onboard RAM sizes:
+ *
+ * LX60 0x04000000 64 MB
+ * LX110 0x03000000 48 MB
+ * LX200 0x06000000 96 MB
+ * ML605 0x18000000 384 MB
+ * KC705 0x38000000 896 MB
+ *
+ * noMMU configurations can only see first 256MB of onboard memory.
+ */
+
+#if XCHAL_HAVE_PTP_MMU || CONFIG_BOARD_SDRAM_SIZE < 0x10000000
+#define CONFIG_SYS_SDRAM_SIZE CONFIG_BOARD_SDRAM_SIZE
+#else
+#define CONFIG_SYS_SDRAM_SIZE 0x10000000
+#endif
+
+#define CONFIG_SYS_SDRAM_BASE MEMADDR(0x00000000)
+
+/* Lx60 can only map 128kb memory (instead of 256kb) when running under OCD */
+#ifdef CONFIG_XTFPGA_LX60
+# define CONFIG_SYS_MONITOR_LEN 0x00020000 /* 128KB */
+#else
+# define CONFIG_SYS_MONITOR_LEN 0x00040000 /* 256KB */
+#endif
+
+#define CONFIG_SYS_STACKSIZE (512 << 10) /* stack 512KB */
+#define CONFIG_SYS_MALLOC_LEN (256 << 10) /* heap 256KB */
+
+/* Linux boot param area in RAM (used only when booting linux) */
+#define CONFIG_SYS_BOOTPARAMS_LEN (64 << 10)
+
+/* Memory test is destructive so default must not overlap vectors or U-Boot*/
+#define CONFIG_SYS_MEMTEST_START MEMADDR(0x01000000)
+#define CONFIG_SYS_MEMTEST_END MEMADDR(0x02000000)
+
+/* Load address for stand-alone applications.
+ * MEMADDR cannot be used here, because the definition needs to be
+ * a plain number as it's used as -Ttext argument for ld in standalone
+ * example makefile.
+ * Handle noMMU vs MMUv2 vs MMUv3 distinction here manually.
+ */
+#if XCHAL_HAVE_PTP_MMU
+#if XCHAL_VECBASE_RESET_VADDR == XCHAL_VECBASE_RESET_PADDR
+#define CONFIG_STANDALONE_LOAD_ADDR 0x00800000
+#else
+#define CONFIG_STANDALONE_LOAD_ADDR 0xd0800000
+#endif
+#else
+#define CONFIG_STANDALONE_LOAD_ADDR 0x60800000
+#endif
+
+#if defined(CONFIG_MAX_MEM_MAPPED) && \
+ CONFIG_MAX_MEM_MAPPED < CONFIG_SYS_SDRAM_SIZE
+#define CONFIG_SYS_MEMORY_SIZE CONFIG_MAX_MEM_MAPPED
+#else
+#define CONFIG_SYS_MEMORY_SIZE CONFIG_SYS_SDRAM_SIZE
+#endif
+
+#define CONFIG_SYS_MEMORY_TOP MEMADDR(CONFIG_SYS_MEMORY_SIZE)
+#define CONFIG_SYS_TEXT_ADDR \
+ (CONFIG_SYS_MEMORY_TOP - CONFIG_SYS_MONITOR_LEN)
+
+/* Used by tftpboot; env var 'loadaddr' */
+#define CONFIG_SYS_LOAD_ADDR MEMADDR(0x02000000)
+
+/*==============================*/
+/* U-Boot general configuration */
+/*==============================*/
+
+#undef CONFIG_USE_IRQ /* Keep it simple, poll only */
+#define CONFIG_BOARD_POSTCLK_INIT
+#define CONFIG_DISPLAY_CPUINFO
+#define CONFIG_DISPLAY_BOARDINFO
+#define CONFIG_MISC_INIT_R
+#define CONFIG_MISC_INIT_F
+
+#define CONFIG_BOOTFILE "uImage"
+ /* Console I/O Buffer Size */
+#define CONFIG_SYS_CBSIZE 1024
+ /* Prt buf */
+#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \
+ sizeof(CONFIG_SYS_PROMPT) + 16)
+ /* max number of command args */
+#define CONFIG_SYS_MAXARGS 16
+ /* Boot Argument Buffer Size */
+#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
+
+/*=================*/
+/* U-Boot commands */
+/*=================*/
+
+#define CONFIG_CMD_DIAG
+#define CONFIG_CMD_SAVES
+
+/*==============================*/
+/* U-Boot autoboot configuration */
+/*==============================*/
+
+#define CONFIG_BOOT_RETRY_TIME 60 /* retry after 60 secs */
+
+#define CONFIG_VERSION_VARIABLE
+#define CONFIG_AUTO_COMPLETE /* Support tab autocompletion */
+#define CONFIG_CMDLINE_EDITING
+#define CONFIG_SYS_LONGHELP
+#define CONFIG_CRC32_VERIFY
+#define CONFIG_MX_CYCLIC
+#define CONFIG_SHOW_BOOT_PROGRESS
+
+#ifdef DEBUG
+#define CONFIG_PANIC_HANG 1 /* Require manual reboot */
+#endif
+
+
+/*=========================================*/
+/* FPGA Registers (board info and control) */
+/*=========================================*/
+
+/*
+ * These assume FPGA bitstreams from Tensilica release RB and up. Earlier
+ * releases may not provide any/all of these registers or at these offsets.
+ * Some of the FPGA registers are broken down into bitfields described by
+ * SHIFT left amount and field WIDTH (bits), and also by a bitMASK.
+ */
+
+/* Date of FPGA bitstream build in binary coded decimal (BCD) */
+#define CONFIG_SYS_FPGAREG_DATE IOADDR(0x0D020000)
+#define FPGAREG_MTH_SHIFT 24 /* BCD month 1..12 */
+#define FPGAREG_MTH_WIDTH 8
+#define FPGAREG_MTH_MASK 0xFF000000
+#define FPGAREG_DAY_SHIFT 16 /* BCD day 1..31 */
+#define FPGAREG_DAY_WIDTH 8
+#define FPGAREG_DAY_MASK 0x00FF0000
+#define FPGAREG_YEAR_SHIFT 0 /* BCD year 2001..9999*/
+#define FPGAREG_YEAR_WIDTH 16
+#define FPGAREG_YEAR_MASK 0x0000FFFF
+
+/* FPGA core clock frequency in Hz (also input to UART) */
+#define CONFIG_SYS_FPGAREG_FREQ IOADDR(0x0D020004) /* CPU clock frequency*/
+
+/*
+ * DIP switch (left=sw1=lsb=bit0, right=sw8=msb=bit7; off=0, on=1):
+ * Bits 0..5 set the lower 6 bits of the default ethernet MAC.
+ * Bit 6 is reserved for future use by Tensilica.
+ * Bit 7 maps the first 128KB of ROM address space at CONFIG_SYS_ROM_BASE to
+ * the base of flash * (when on/1) or to the base of RAM (when off/0).
+ */
+#define CONFIG_SYS_FPGAREG_DIPSW IOADDR(0x0D02000C)
+#define FPGAREG_MAC_SHIFT 0 /* Ethernet MAC bits 0..5 */
+#define FPGAREG_MAC_WIDTH 6
+#define FPGAREG_MAC_MASK 0x3f
+#define FPGAREG_BOOT_SHIFT 7 /* Boot ROM addr mapping */
+#define FPGAREG_BOOT_WIDTH 1
+#define FPGAREG_BOOT_MASK 0x80
+#define FPGAREG_BOOT_RAM 0
+#define FPGAREG_BOOT_FLASH (1<<FPGAREG_BOOT_SHIFT)
+
+/* Force hard reset of board by writing a code to this register */
+#define CONFIG_SYS_FPGAREG_RESET IOADDR(0x0D020010) /* Reset board .. */
+#define CONFIG_SYS_FPGAREG_RESET_CODE 0x0000DEAD /* by writing this code */
+
+/*====================*/
+/* ASCII Display Info */
+/*====================*/
+
+#ifndef CONFIG_XTFPGA_LX200 /* LX200 has no ascii display */
+# ifdef CONFIG_XTFPGA_LX60
+# define CONFIG_SYS_ASCDISP_ADDR IOADDR(0x0D040000)
+# else
+# define CONFIG_SYS_ASCDISP_ADDR IOADDR(0x0D0C0000)
+# endif
+#define CONFIG_SYS_ASCDISP_LINES 2
+#define CONFIG_SYS_ASCDISP_CHARS 16
+#define CONFIG_SYS_ASCDISP_BUFSZ 64 /* Display printf buffer size */
+#endif
+
+/*====================*/
+/* Serial Driver Info */
+/*====================*/
+
+#define CONFIG_SYS_NS16550_SERIAL
+#define CONFIG_SYS_NS16550_REG_SIZE (-4)
+#define CONFIG_SYS_NS16550_COM1 IOADDR(0x0D050020) /* Base address */
+
+/* Input clk to NS16550 (in Hz; the SYS_CLK_FREQ is in kHz) */
+#define CONFIG_SYS_NS16550_CLK CONFIG_SYS_CLK_FREQ
+#define CONFIG_CONS_INDEX 1 /* use UART0 for console */
+#define CONFIG_BAUDRATE 115200 /* Default baud rate */
+#define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
+
+/*======================*/
+/* Ethernet Driver Info */
+/*======================*/
+
+#define CONFIG_ETHOC
+#define CONFIG_ETHBASE 00:50:C2:13:6f:00
+#define CONFIG_SYS_ETHOC_BASE IOADDR(0x0d030000)
+#define CONFIG_SYS_ETHOC_BUFFER_ADDR IOADDR(0x0D800000)
+#define CONFIG_SYS_ETHOC_SETUP_PHY
+
+/*=====================*/
+/* Flash & Environment */
+/*=====================*/
+
+#define CONFIG_SYS_FLASH_CFI
+#define CONFIG_FLASH_CFI_DRIVER /* use generic CFI driver */
+#define CONFIG_SYS_FLASH_CFI_WIDTH FLASH_CFI_16BIT
+#define CONFIG_SYS_MAX_FLASH_BANKS 1
+#ifdef CONFIG_XTFPGA_LX60
+# define CONFIG_SYS_FLASH_SIZE 0x0040000 /* 4MB */
+# define CONFIG_SYS_FLASH_SECT_SZ 0x10000 /* block size 64KB */
+# define CONFIG_SYS_FLASH_PARMSECT_SZ 0x2000 /* param size 8KB */
+# define CONFIG_SYS_FLASH_BASE IOADDR(0x08000000)
+# define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE
+#elif defined(CONFIG_XTFPGA_KC705)
+# define CONFIG_SYS_FLASH_SIZE 0x8000000 /* 128MB */
+# define CONFIG_SYS_FLASH_SECT_SZ 0x20000 /* block size 128KB */
+# define CONFIG_SYS_FLASH_PARMSECT_SZ 0x8000 /* param size 32KB */
+# define CONFIG_SYS_FLASH_BASE IOADDR(0x00000000)
+# define CONFIG_SYS_MONITOR_BASE IOADDR(0x06000000)
+#else
+# define CONFIG_SYS_FLASH_SIZE 0x1000000 /* 16MB */
+# define CONFIG_SYS_FLASH_SECT_SZ 0x20000 /* block size 128KB */
+# define CONFIG_SYS_FLASH_PARMSECT_SZ 0x8000 /* param size 32KB */
+# define CONFIG_SYS_FLASH_BASE IOADDR(0x08000000)
+# define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE
+#endif
+#define CONFIG_SYS_MAX_FLASH_SECT \
+ (CONFIG_SYS_FLASH_SECT_SZ/CONFIG_SYS_FLASH_PARMSECT_SZ + \
+ CONFIG_SYS_FLASH_SIZE/CONFIG_SYS_FLASH_SECT_SZ - 1)
+#define CONFIG_SYS_FLASH_PROTECTION /* hw flash protection */
+
+/*
+ * Put environment in top block (64kB)
+ * Another option would be to put env. in 2nd param block offs 8KB, size 8KB
+ */
+#define CONFIG_ENV_IS_IN_FLASH
+#define CONFIG_ENV_OFFSET (CONFIG_SYS_FLASH_SIZE - CONFIG_SYS_FLASH_SECT_SZ)
+#define CONFIG_ENV_SIZE CONFIG_SYS_FLASH_SECT_SZ
+
+/* print 'E' for empty sector on flinfo */
+#define CONFIG_SYS_FLASH_EMPTY_INFO
+
+#endif /* __CONFIG_H */
--
2.1.4
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