Add initial port for FT9xx series from Bridgetek.

Add FT90X and FT93X to the list of devices in tusb_option.h. 1700 for FT90x and 1701 for FT93x.
Set endpoint attributes for FT90x and FT93x in dcd_attr.h.
Add FT90x routines for USB device in src/portable/bridgetek/ft90x/dcd_ft90x.c
The location for hardware header files and libraries is hw/mcu/bridgetek/ft90x/hardware. There are no files in the repository, but files will be linked as a submodule in the future. The required files can be copied from or linked to the location "C:/Program Files(x86)/Bridgetek/FT9xx Toolchain/Toolchain/hardware" once the toolchain is installed.
Makefile for the MM900EV1B board for developing with an FT900 device is present. Use "BOARD=mm900ev1b".

6 files changed, 687 insertions, 0 deletions

diff --git a/hw/bsp/brtmm90x/boards/mm900ev1b/board.h b/hw/bsp/brtmm90x/boards/mm900ev1b/board.h
new file mode 100644
index 000000000..dfb566289
--- /dev/null
+++ b/hw/bsp/brtmm90x/boards/mm900ev1b/board.h
@@ -0,0 +1,56 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021, Ha Thach (tinyusb.org)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file is part of the TinyUSB stack.
+ */
+
+#ifndef BOARD_H_
+#define BOARD_H_
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+#if defined(__FT900__)
+#define GPIO_UART0_TX 48
+#define GPIO_UART0_RX 49
+#define GPIO_ETH_LED0 61
+#define GPIO_ETH_LED1 62
+#define GPIO_REMOTE_WAKEUP_PIN 18
+#define USBD_VBUS_DTC_PIN 3
+#elif defined(__FT930__)
+#define GPIO_UART0_TX 23
+#define GPIO_UART0_RX 22
+#define GPIO_ETH_LED0 4
+#define GPIO_ETH_LED1 5
+#define GPIO_REMOTE_WAKEUP_PIN 12
+#define USBD_VBUS_DTC_PIN 39
+#endif
+
+//#define GPIO_REMOTE_WAKEUP
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif
diff --git a/hw/bsp/brtmm90x/family.c b/hw/bsp/brtmm90x/family.c
new file mode 100644
index 000000000..010704d92
--- /dev/null
+++ b/hw/bsp/brtmm90x/family.c
@@ -0,0 +1,210 @@
+/* 
+ * The MIT License (MIT)
+ *
+ * Copyright 2019 Sony Semiconductor Solutions Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file is part of the TinyUSB stack.
+ */
+
+#include <registers/ft900_registers.h>
+#include <ft900.h>
+#include "bsp/board.h"
+#include "board.h"
+//#include "src/device/dcd.h"
+
+#if TUSB_OPT_DEVICE_ENABLED
+int8_t board_ft90x_vbus(void); // Board specific implementation of VBUS detection for USB device.
+extern void ft90x_usbd_pm_ISR(uint16_t pmcfg); // Interrupt handler for USB device power management
+#endif
+
+#ifdef GPIO_REMOTE_WAKEUP
+void gpio_ISR(void);
+#endif
+void timer_ISR(void);
+volatile unsigned int timer_ms = 0;
+void board_pm_ISR(void);
+
+#define WELCOME_MSG "\x1B[2J\x1B[H" \
+                    "MM900EV1B board\r\n"
+
+// Initialize on-board peripherals : led, button, uart and USB
+void board_init(void)
+{
+	sys_reset_all();
+    // Enable the UART Device.
+    sys_enable(sys_device_uart0);
+    // Set UART0 GPIO functions to UART0_TXD and UART0_RXD.
+    gpio_function(GPIO_UART0_TX, pad_uart0_txd); /* UART0 TXD */
+    gpio_function(GPIO_UART0_RX, pad_uart0_rxd); /* UART0 RXD */
+    uart_open(UART0,                             /* Device */
+              1,                                 /* Prescaler = 1 */
+              UART_DIVIDER_19200_BAUD,           /* Divider = 1302 */
+              uart_data_bits_8,                  /* No. Data Bits */
+              uart_parity_none,                  /* Parity */
+              uart_stop_bits_1);                 /* No. Stop Bits */
+	// Print out a welcome message.
+    // Use sizeof to avoid pulling in strlen unnecessarily.
+    board_uart_write(WELCOME_MSG, sizeof(WELCOME_MSG));
+
+#if 1
+    gpio_function(GPIO_ETH_LED0, pad_gpio4); /* ETH LED0 */
+    gpio_dir(GPIO_ETH_LED0, pad_dir_open_drain);
+    gpio_function(GPIO_ETH_LED1, pad_gpio5); /* ETH LED0 */
+    gpio_dir(GPIO_ETH_LED1, pad_dir_output);
+#endif
+	sys_enable(sys_device_timer_wdt);
+	interrupt_attach(interrupt_timers, (int8_t)interrupt_timers, timer_ISR);
+	/* Timer A = 1ms */
+	timer_prescaler(timer_select_a, 1000);
+	timer_init(timer_select_a, 100, timer_direction_down, timer_prescaler_select_on, timer_mode_continuous);
+	timer_enable_interrupt(timer_select_a);
+	timer_start(timer_select_a);
+
+    // Setup VBUS detect GPIO. If the device is connected then this
+    // will set the MASK_SYS_PMCFG_DEV_DETECT_EN bit in PMCFG.
+    gpio_interrupt_disable(USBD_VBUS_DTC_PIN);
+    gpio_function(USBD_VBUS_DTC_PIN, pad_vbus_dtc);
+    gpio_pull(USBD_VBUS_DTC_PIN, pad_pull_pulldown);
+    gpio_dir(USBD_VBUS_DTC_PIN, pad_dir_input);
+
+    interrupt_attach(interrupt_0, (int8_t)interrupt_0, board_pm_ISR);
+
+#ifdef GPIO_REMOTE_WAKEUP
+    //Configuring GPIO pin to wakeup.
+    // Set up the wakeup pin.
+    gpio_dir(GPIO_REMOTE_WAKEUP_PIN, pad_dir_input);
+    gpio_pull(GPIO_REMOTE_WAKEUP_PIN, pad_pull_pullup);
+
+    // Attach an interrupt handler.
+    interrupt_attach(interrupt_gpio, (uint8_t)interrupt_gpio, gpio_ISR);
+    gpio_interrupt_enable(GPIO_REMOTE_WAKEUP_PIN, gpio_int_edge_falling);
+#endif
+
+	uart_disable_interrupt(UART0, uart_interrupt_tx);
+	uart_disable_interrupt(UART0, uart_interrupt_rx);
+
+    // Enable all peripheral interrupts.
+    interrupt_enable_globally();
+
+    TU_LOG1("MM900EV1B board setup complete\r\n");
+};
+
+void timer_ISR(void)
+{
+    if (timer_is_interrupted(timer_select_a))
+    {
+        timer_ms++;
+    }
+}
+
+#ifdef GPIO_REMOTE_WAKEUP
+void gpio_ISR(void)
+{
+    if (gpio_is_interrupted(GPIO_REMOTE_WAKEUP_PIN))
+    {
+    }
+}
+#endif
+
+/* Power management ISR */
+void board_pm_ISR(void)
+{
+    uint16_t pmcfg = SYS->PMCFG_H;
+
+#if defined(__FT930__)
+    if (pmcfg & MASK_SYS_PMCFG_SLAVE_PERI_IRQ_PEND)
+    {
+        // Clear d2xx hw engine wakeup.
+        SYS->PMCFG_H = MASK_SYS_PMCFG_SLAVE_PERI_IRQ_PEND;
+    }
+#endif
+    if (pmcfg & MASK_SYS_PMCFG_PM_GPIO_IRQ_PEND)
+    {
+        // Clear GPIO wakeup pending.
+        SYS->PMCFG_H = MASK_SYS_PMCFG_PM_GPIO_IRQ_PEND;
+    }
+
+#if defined(__FT900__)
+    // USB device power management interrupts.
+    if (pmcfg & (MASK_SYS_PMCFG_DEV_CONN_DEV |
+              MASK_SYS_PMCFG_DEV_DIS_DEV |
+              MASK_SYS_PMCFG_HOST_RST_DEV |
+              MASK_SYS_PMCFG_HOST_RESUME_DEV)
+    )
+    {
+#if TUSB_OPT_DEVICE_ENABLED
+        ft90x_usbd_pm_ISR(pmcfg);
+#endif
+    }
+#endif
+}
+
+#if TUSB_OPT_DEVICE_ENABLED
+int8_t board_ft90x_vbus(void)
+{
+	return gpio_read(USBD_VBUS_DTC_PIN);
+}
+#endif
+
+//--------------------------------------------------------------------+
+// Board porting API
+//--------------------------------------------------------------------+
+
+// Turn LED on or off
+void board_led_write(bool state)
+{
+    gpio_write(GPIO_ETH_LED0, state);
+}
+
+// Get the current state of button
+// a '1' means active (pressed), a '0' means inactive.
+uint32_t board_button_read(void)
+{
+    return 0;
+}
+
+// Get characters from UART
+int board_uart_read(uint8_t *buf, int len)
+{
+    int r = uart_readn(UART0, (uint8_t *)buf, len);
+
+    return r;
+}
+
+// Send characters to UART
+int board_uart_write(void const *buf, int len)
+{
+    int r = uart_writen(UART0, (uint8_t *)buf, len);
+
+    return r;
+}
+
+// Get current milliseconds
+uint32_t board_millis(void)
+{
+    uint32_t safe_ms;
+    
+    CRITICAL_SECTION_BEGIN
+    safe_ms = timer_ms;
+    CRITICAL_SECTION_END
+
+    return safe_ms;
+}
diff --git a/hw/bsp/brtmm90x/family.mk b/hw/bsp/brtmm90x/family.mk
new file mode 100644
index 000000000..57a141506
--- /dev/null
+++ b/hw/bsp/brtmm90x/family.mk
@@ -0,0 +1,35 @@
+
+CROSS_COMPILE = ft32-elf-
+DEPS_SUBMODULES += hw/mcu/bridgetek/ft90x/hardware
+SKIP_NANOLIB = 1
+
+# This is installed at "C:/Program Files(x86)/Bridgetek/FT9xx Toolchain/Toolchain/hardware"
+FT90X_SDK = $(TOP)/hw/mcu/bridgetek/ft90x/hardware
+
+CFLAGS += \
+	-D__FT900__ \
+	-fvar-tracking \
+	-fvar-tracking-assignments \
+	-fmessage-length=0 \
+	-ffunction-sections \
+	-DCFG_TUSB_MCU=OPT_MCU_FT90X 
+
+# lwip/src/core/raw.c:334:43: error: declaration of 'recv' shadows a global declaration
+CFLAGS += -Wno-error=shadow
+CFLAGS:=$(filter-out -Wcast-function-type,$(CFLAGS))
+
+# All source paths should be relative to the top level.
+LDINC += $(FT90X_SDK)/lib/Release
+LIBS += -lft900
+LD_FILE = hw/mcu/bridgetek/ft90x/hardware/scripts/ldscript.ld
+LDFLAGS += $(addprefix -L,$(LDINC)) \
+	-Xlinker --entry=_start \
+	-Wl,-lc
+
+SRC_C += src/portable/bridgetek/ft90x/dcd_ft90x.c 
+
+#SRC_S += hw/mcu/bridgetek/ft90x/hardware/scripts/crt0.S
+
+INC += \
+	$(FT90X_SDK)/include \
+	$(TOP)/$(BOARD_PATH)
diff --git a/hw/mcu/bridgetek/ft90x/Readme.md b/hw/mcu/bridgetek/ft90x/Readme.md
new file mode 100644
index 000000000..e197f182e
--- /dev/null
+++ b/hw/mcu/bridgetek/ft90x/Readme.md
@@ -0,0 +1,6 @@
+# BridgeTek FT9xx MCU
+
+**BridgeTek** provides a hardware abstraction library with software source code for the SDKs for FT9xx software family.
+The pre-built libraries and the source code can be redistributed.
+Registers definition files `<sdk>/include/registers/ft900_registers.h` and included peripheral register definition files have licenses that allow for redistribution.  
+Whole SDK repository is installed as part of the FT9xx Toolchain and can be downloaded from BridgeTek web page `https://www.brtchip.com`
diff --git a/hw/mcu/bridgetek/ft90x/hardware/scripts/crt0.S b/hw/mcu/bridgetek/ft90x/hardware/scripts/crt0.S
new file mode 100644
index 000000000..62fa266ee
--- /dev/null
+++ b/hw/mcu/bridgetek/ft90x/hardware/scripts/crt0.S
@@ -0,0 +1,286 @@
+.equ SYS_REGMSC0CFG_B3  , 0x1001b
+.equ SYS_REGIRQCTL_B3   , 0x100e3
+.equ MAILBOX_MEMORY     , 0x13000
+
+.equ	IS_IMG_SDBL_PRESENT, 0
+.equ	IS_IMG_D2XX_PRESENT, 0
+.equ	IS_IMG_DLOG_PRESENT, 0
+
+.section .crt0
+.global _start
+
+_start:
+# START Interrupt Vector Table [[
+        jmp     __PMSIZE-4         # RESET Vector
+        jmp     interrupt_33	   # Watchdog reset vector
+        jmp     interrupt_0
+        jmp     interrupt_1
+        jmp     interrupt_2
+        jmp     interrupt_3
+        jmp     interrupt_4
+        jmp     interrupt_5
+        jmp     interrupt_6
+        jmp     interrupt_7
+        jmp     interrupt_8
+        jmp     interrupt_9
+        jmp     interrupt_10
+        jmp     interrupt_11
+        jmp     interrupt_12
+        jmp     interrupt_13
+        jmp     interrupt_14
+        jmp     interrupt_15
+        jmp     interrupt_16
+        jmp     interrupt_17
+        jmp     interrupt_18
+        jmp     interrupt_19
+        jmp     interrupt_20
+        jmp     interrupt_21
+        jmp     interrupt_22
+        jmp     interrupt_23
+        jmp     interrupt_24
+        jmp     interrupt_25
+        jmp     interrupt_26
+        jmp     interrupt_27
+        jmp     interrupt_28
+        jmp     interrupt_29
+        jmp     interrupt_30
+        jmp     interrupt_31
+        jmp     __PMSIZE-8				#Interrupt vector 32 (NMI)
+# ]] END Interrupt Vector Table
+
+codestart:
+        jmp    init
+        
+.global _exithook
+_exithook:               # Debugger uses '_exithook' at 0x90 to catch program exit
+        return
+        
+init:
+        # Disable all interrupts
+        ldk     $r0,0x80
+.ifdef __FT930__
+        sta.b   0x10123, $r0
+.else
+        sta.b   0x100e3,$r0
+.endif
+        
+        # Reset all peripherals
+        # lda.l   $r0, 0x10018
+        # bins.l  $r0, $r0, 0x23F  # Set bit 31
+        # sta.l   0x10018, $r0
+        
+        # Initialize DATA by copying from program memory
+        ldk.l   $r0,__data_load_start
+        ldk.l   $r1,__data_load_end
+        ldk.l   $r2,0   # Will use __data after binutils patch
+
+        jmp     .dscopy
+.dsloop:
+        # Copy PM[$r0] to RAM $r2
+        lpmi.l  $r3,$r0,0
+        sti.l   $r2,0,$r3
+        add.l   $r0,$r0,4
+        add.l   $r2,$r2,4
+.dscopy:
+        cmp.l   $r0,$r1
+        jmpc    lt,.dsloop
+
+        # Zero BSS
+        ldk.l   $r0,_bss_start
+        ldk.l   $r2,_end
+        sub.l   $r2,$r2,$r0
+        ldk.l   $r1,0
+        ldk    $r3,32764
+1:
+        cmp    $r2,$r3
+        jmpc   lt,2f
+        memset $r0,$r1,$r3
+        add    $r0,$r0,$r3
+        sub    $r2,$r2,$r3
+        jmp    1b
+2:
+        memset $r0,$r1,$r2
+.ifdef __FT930__
+/*##############################################################*/
+		# copy UserConfig DATA from flash to mailbox memory
+/*##############################################################*/
+        ldk.l   $r0,D2XX_Struct_start  /*start of d2xx config in PM memory */
+        ldk.l   $r1,D2XX_Struct_end /*end of d2xx config in PM memory */
+        ldk.l   $r2,D2XXTEST_UserD2xxConfig /* RAM cache where the d2xx config from PM to be copied*/
+        jmp     .configcopy
+
+.configloop:
+        # Copy PM[$r0] to RAM[$r2]
+        lpmi.l  $r3,$r0,0
+        sti.l   $r2,0,$r3
+        # Increment
+        add.l   $r0,$r0,4
+        add.l   $r2,$r2,4
+.configcopy:
+        cmp.l   $r0,$r1
+        jmpc    lt,.configloop
+
+        ldk.l   $r1,D2XX_Struct_start
+        ldk.l   $r2,D2XX_Struct_end
+        #compute size
+        sub.l   $r2,$r2,$r1
+        ldk.l   $r1,D2XXTEST_UserD2xxConfig
+        ldk.l   $r0,MAILBOX_MEMORY		/* D2xx config from RAM cache to be copied to Mailbox memory */
+        # Copy RAM[$r1] to Mailbox $r0, for $r2 bytes
+        streamouti.b   $r0,$r1,$r2
+/*############################################################*/
+.endif
+        sub.l   $sp,$sp,24  # Space for the caller argument frame
+        call    main
+
+.equ EXITEXIT    , 0x1fffc
+
+.global _exit
+_exit:
+        sta.l   EXITEXIT,$r0    # simulator end of test
+        jmp     _exithook
+
+#_watchdog_isr:
+#        ldk     $sp,__RAMSIZE
+#        jmp     __PMSIZE-4
+
+# Macro to construct the interrupt stub code.
+# it just saves r0, loads r0 with the int vector
+# and branches to interrupt_common.
+
+.macro  inth i=0
+interrupt_\i:
+        push    $r0     # {
+        lda     $r0,(vector_table + 4 * \i)
+        jmp     interrupt_common
+.endm
+
+        inth    0
+        inth    1
+        inth    2
+        inth    3
+        inth    4
+        inth    5
+        inth    6
+        inth    7
+        inth    8
+        inth    9
+        inth    10
+        inth    11
+        inth    12
+        inth    13
+        inth    14
+        inth    15
+        inth    16
+        inth    17
+        inth    18
+        inth    19
+        inth    20
+        inth    21
+        inth    22
+        inth    23
+        inth    24
+        inth    25
+        inth    26
+        inth    27
+        inth    28
+        inth    29
+        inth    30
+        inth    31
+        inth    32
+        inth    33
+
+        # On entry: r0, already saved, holds the handler function
+interrupt_common:
+        push    $r1     # {
+        push    $r2     # {
+        push    $r3     # {
+        push    $r4     # {
+        push    $r5     # {
+        push    $r6     # {
+        push    $r7     # {
+        push    $r8     # {
+        push    $r9     # {
+        push    $r10    # {
+        push    $r11    # {
+        push    $r12    # {
+        push    $cc     # {
+
+        calli   $r0
+
+        pop     $cc     # }
+        pop     $r12    # }
+        pop     $r11    # }
+        pop     $r10    # }
+        pop     $r9     # }
+        pop     $r8     # }
+        pop     $r7     # }
+        pop     $r6     # }
+        pop     $r5     # }
+        pop     $r4     # }
+        pop     $r3     # }
+        pop     $r2     # }
+        pop     $r1     # }
+        pop     $r0     # } matching push in interrupt_0-31 above
+        reti
+
+        # Null function for unassigned interrupt to point at
+.global     nullvector
+nullvector:
+        return
+
+.section .data
+.global vector_table
+	.align (4)			# assembler alignment is in the power of 2 (in this case 2^4)
+vector_table:
+        .rept 34
+                .long   nullvector
+        .endr
+
+
+.section .text
+.global __gxx_personality_sj0
+__gxx_personality_sj0:
+
+
+	.section ._flash_d2xx_config
+.global __pD2XXDefaultConfiguration
+	.align (10)
+
+D2XX_partition_start = .
+
+.if IS_IMG_D2XX_PRESENT
+.ifdef __FT930__
+.include "ft930_d2xx_default_config.inc"
+.else
+.include "ft900_d2xx_default_config.inc"
+.endif
+.endif
+
+D2XX_partition_end = .
+
+	.section ._flash_dlog_partition
+	.align (10)
+.global __dlog_partition
+__dlog_partition:
+dlog_partition_start = .
+.if IS_IMG_DLOG_PRESENT
+	.long	0xF7D1D106
+	.rept  (0x1000-4)
+	.byte	0xFF
+	.endr
+.endif
+dlog_partition_end = .
+
+	.section ._pm
+.global	__sdbl_partition_sizeof
+.global __D2XX_partition_sizeof
+.global __dlog_partition_sizeof
+	.if IS_IMG_SDBL_PRESENT
+__sdbl_partition_sizeof = 0x2000
+	.else
+__sdbl_partition_sizeof = 0
+	.endif
+
+__D2XX_partition_sizeof = D2XX_partition_end - D2XX_partition_start
+__dlog_partition_sizeof = dlog_partition_end - dlog_partition_start
diff --git a/hw/mcu/bridgetek/ft90x/hardware/scripts/ldscript.ld b/hw/mcu/bridgetek/ft90x/hardware/scripts/ldscript.ld
new file mode 100644
index 000000000..d1b4d46cd
--- /dev/null
+++ b/hw/mcu/bridgetek/ft90x/hardware/scripts/ldscript.ld
@@ -0,0 +1,94 @@
+/* Default linker script, for normal executables */
+OUTPUT_FORMAT("elf32-ft32")
+OUTPUT_ARCH(ft32)
+SEARCH_DIR("/data/win8/ft32/ft32-elf/lib");
+/* Allow the command line to override the memory region sizes.  */
+__PMSIZE = DEFINED(__PMSIZE)  ? __PMSIZE : 256K;
+__RAMSIZE = DEFINED(__RAMSIZE) ? __RAMSIZE : 64K;
+MEMORY
+{
+  flash     (rx)   : ORIGIN = 0,        LENGTH = __PMSIZE
+  ram       (rw!x) : ORIGIN = 0x800000, LENGTH = __RAMSIZE
+}
+SECTIONS
+{
+  .text :
+  {
+    *(.text*)
+    *(.strings)
+    *(._pm*)
+    *(.init)
+    *(.fini)
+     _etext = . ;
+    . = ALIGN(4);
+  }  > flash
+  .tors :
+  {
+    ___ctors = . ;
+    *(.ctors)
+    ___ctors_end = . ;
+    ___dtors = . ;
+    *(.dtors)
+    ___dtors_end = . ;
+    . = ALIGN(4);
+  } > ram
+  .data :  AT (ADDR (.text) + SIZEOF (.text))
+  {
+    *(.data)
+    *(.data*)
+    *(.rodata)
+    *(.rodata*)
+     _edata = . ;
+    . = ALIGN(4);
+  }  > ram
+  .bss   SIZEOF(.data) + ADDR(.data) :
+  {
+     _bss_start = . ;
+    *(.bss)
+    *(.bss*)
+    *(COMMON)
+     _end = . ;
+    . = ALIGN(4);
+  }  > ram
+   __data_load_start = LOADADDR(.data);
+   __data_load_end = __data_load_start + SIZEOF(.data);
+  .stab 0 (NOLOAD) :
+  {
+    *(.stab)
+  }
+  .stabstr 0 (NOLOAD) :
+  {
+    *(.stabstr)
+  }
+  /* DWARF debug sections.
+     Symbols in the DWARF debugging sections are relative to the beginning
+     of the section so we begin them at 0.  */
+  /* DWARF 1 */
+  .debug          0 : { *(.debug) }
+  .line           0 : { *(.line) }
+  /* GNU DWARF 1 extensions */
+  .debug_srcinfo  0 : { *(.debug_srcinfo) }
+  .debug_sfnames  0 : { *(.debug_sfnames) }
+  /* DWARF 1.1 and DWARF 2 */
+  .debug_aranges  0 : { *(.debug_aranges) }
+  .debug_pubnames 0 : { *(.debug_pubnames) }
+  /* DWARF 2 */
+  .debug_info     0 : { *(.debug_info .gnu.linkonce.wi.*) }
+  .debug_abbrev   0 : { *(.debug_abbrev) }
+  .debug_line     0 : { *(.debug_line .debug_line.* .debug_line_end ) }
+  .debug_frame    0 : { *(.debug_frame) }
+  .debug_str      0 : { *(.debug_str) }
+  .debug_loc      0 : { *(.debug_loc) }
+  .debug_macinfo  0 : { *(.debug_macinfo) }
+  /* SGI/MIPS DWARF 2 extensions */
+  .debug_weaknames 0 : { *(.debug_weaknames) }
+  .debug_funcnames 0 : { *(.debug_funcnames) }
+  .debug_typenames 0 : { *(.debug_typenames) }
+  .debug_varnames  0 : { *(.debug_varnames) }
+  /* DWARF 3 */
+  .debug_pubtypes 0 : { *(.debug_pubtypes) }
+  .debug_ranges   0 : { *(.debug_ranges) }
+  /* DWARF Extension.  */
+  .debug_macro    0 : { *(.debug_macro) }
+  .debug_addr     0 : { *(.debug_addr) }
+}