diff options
Diffstat (limited to 'firmware/microblaze/usrp2p/bootloader')
| -rw-r--r-- | firmware/microblaze/usrp2p/bootloader/CMakeLists.txt | 39 | ||||
| -rw-r--r-- | firmware/microblaze/usrp2p/bootloader/Makefile.am | 39 | ||||
| -rw-r--r-- | firmware/microblaze/usrp2p/bootloader/fpga_bootloader.c | 202 | ||||
| -rw-r--r-- | firmware/microblaze/usrp2p/bootloader/fw_bootloader.c | 50 | ||||
| -rw-r--r-- | firmware/microblaze/usrp2p/bootloader/icap_test.c | 31 | ||||
| -rw-r--r-- | firmware/microblaze/usrp2p/bootloader/init_bootloader.c | 120 | ||||
| -rw-r--r-- | firmware/microblaze/usrp2p/bootloader/serial_loader_burner.c | 49 | ||||
| -rw-r--r-- | firmware/microblaze/usrp2p/bootloader/spi_bootloader.c | 134 | ||||
| -rw-r--r-- | firmware/microblaze/usrp2p/bootloader/u2p2-rom.ld | 190 |
9 files changed, 0 insertions, 854 deletions
diff --git a/firmware/microblaze/usrp2p/bootloader/CMakeLists.txt b/firmware/microblaze/usrp2p/bootloader/CMakeLists.txt deleted file mode 100644 index 41c86cc9a..000000000 --- a/firmware/microblaze/usrp2p/bootloader/CMakeLists.txt +++ /dev/null @@ -1,39 +0,0 @@ -# -# Copyright 2010 Ettus Research LLC -# -# This program is free software: you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation, either version 3 of the License, or -# (at your option) any later version. -# -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program. If not, see <http://www.gnu.org/licenses/>. -# - -######################################################################## -INCLUDE(FindPythonInterp) - -MACRO(GEN_RMI target) - GET_FILENAME_COMPONENT(name ${target} NAME_WE) - #command to create a rmi from elf - ADD_CUSTOM_COMMAND( - OUTPUT ${name}.rmi DEPENDS ${name}.bin - COMMAND ${PYTHON_EXECUTABLE} - ARGS ${CMAKE_SOURCE_DIR}/bin/bin_to_ram_macro_init.py ${name}.bin ${name}.rmi - ) - #add a top level target for output files - ADD_CUSTOM_TARGET( - ${name}_rmi ALL DEPENDS ${name}.rmi - ) -ENDMACRO(GEN_RMI) - -######################################################################## -ADD_EXECUTABLE(init_bootloader.elf init_bootloader.c) -TARGET_LINK_LIBRARIES(init_bootloader.elf libusrp2pfw) -GEN_OUTPUTS(init_bootloader.elf) -GEN_RMI(init_bootloader.bin) diff --git a/firmware/microblaze/usrp2p/bootloader/Makefile.am b/firmware/microblaze/usrp2p/bootloader/Makefile.am deleted file mode 100644 index 1fc5daf9c..000000000 --- a/firmware/microblaze/usrp2p/bootloader/Makefile.am +++ /dev/null @@ -1,39 +0,0 @@ -# -# Copyright 2007,2008,2009 Free Software Foundation, Inc. -# -# This program is free software: you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation, either version 3 of the License, or -# (at your option) any later version. -# -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program. If not, see <http://www.gnu.org/licenses/>. -# - -include $(top_srcdir)/Makefile.common - -ROM_LINKER_SCRIPT = u2p2-rom.ld - -# loads into 8K boot ram located at 0x0000_0000 -AM_CFLAGS = $(COMMON_CFLAGS) -I$(top_srcdir)/usrp2p -AM_LDFLAGS = -Wl,-T,$(ROM_LINKER_SCRIPT) $(COMMON_LFLAGS) -Wl,-defsym -Wl,_STACK_SIZE=1024 - -EXTRA_DIST = $(ROM_LINKER_SCRIPT) - -LDADD = $(top_srcdir)/usrp2p/libusrp2p.a - -noinst_PROGRAMS = \ - init_bootloader.elf - -init_bootloader_elf_SOURCES = init_bootloader.c - -.bin.rmi: - $(top_srcdir)/bin/bin_to_ram_macro_init.py $< $@ - -_generated_from_elf += \ - $(noinst_PROGRAMS:.elf=.rmi) diff --git a/firmware/microblaze/usrp2p/bootloader/fpga_bootloader.c b/firmware/microblaze/usrp2p/bootloader/fpga_bootloader.c deleted file mode 100644 index 9feff6ecd..000000000 --- a/firmware/microblaze/usrp2p/bootloader/fpga_bootloader.c +++ /dev/null @@ -1,202 +0,0 @@ -/* -*- c -*- */ -/* - * Copyright 2009 Ettus Research LLC - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - -/* - * This code is bootloader f/w for the slot 0 fpga image. It's job is - * to figure out which fpga image should be loaded, and then to load - * that image from the SPI flash. (FIXME handle retries, errors, - * etc.) - * - * If the center button is down during boot, it loads firwmare - * from 0:0 instead of its normal action. - */ - -#include <stdlib.h> -#include <hal_io.h> -#include <nonstdio.h> -#include <mdelay.h> -#include <quadradio/flashdir.h> -#include <xilinx_v5_icap.h> -#include <bootconfig.h> -#include <bootconfig_private.h> -#include <spi_flash.h> -#include <string.h> -#include <bootloader_utils.h> -#include <hal_interrupts.h> - -#define VERBOSE 1 - -#define OUR_FPGA_IMAGE_NUMBER 0 // this code only runs in slot 0 - -void hal_uart_init(void); -void spif_init(void); -void i2c_init(void); -void bootconfig_init(void); - -void pic_interrupt_handler() __attribute__ ((interrupt_handler)); - -void pic_interrupt_handler() -{ - // nop stub -} - -static int -flash_addr_of_fpga_slot(unsigned int fpga_slot) -{ - const struct flashdir *fd = get_flashdir(); - return fd->slot[fpga_slot + fd->fpga_slot0].start << spi_flash_log2_sector_size(); -} - - -/* - * If the first 256 bytes of the image contain the string of bytes, - * ff ff ff ff aa 99 55 66, we consider it a likely bitstream. - */ -static bool -looks_like_a_bitstream(unsigned int fpga_slot) -{ - unsigned char buf[256]; - static const unsigned char pattern[] = { - 0xff, 0xff, 0xff, 0xff, 0xaa, 0x99, 0x55, 0x66 - }; - - // Read the first 256 bytes of the bitstream - spi_flash_read(flash_addr_of_fpga_slot(fpga_slot), sizeof(buf), buf); - - for (int i = 0; i <= sizeof(buf) - sizeof(pattern); i++) - if (memcmp(pattern, &buf[i], sizeof(pattern)) == 0) - return true; - - return false; -} - -static bool -plausible_bootconfig(bootconfig_t bc) -{ - // Are the fields in range? - if (!validate_bootconfig(bc)) - return false; - - if (!looks_like_a_bitstream(map_fpga_image_number_to_fpga_slot(bc.fpga_image_number))) - return false; - - return true; -} - -// Attempt to boot the fpga image specified in next_boot -static void -initial_boot_attempt(eeprom_boot_info_t *ee) -{ - if (ee->next_boot.fpga_image_number == OUR_FPGA_IMAGE_NUMBER){ - load_firmware(); - return; - } - - ee->nattempts = 1; - _bc_write_eeprom_shadow(); - - unsigned int target_slot = - map_fpga_image_number_to_fpga_slot(ee->next_boot.fpga_image_number); - int flash_addr = flash_addr_of_fpga_slot(target_slot); - - putstr("fpga_bootloader: chaining to "); - puthex4(ee->next_boot.fpga_image_number); - putchar(':'); - puthex4(ee->next_boot.firmware_image_number); - newline(); - mdelay(100); - - while (1){ - icap_reload_fpga(flash_addr); - } -} - -int -main(int argc, char **argv) -{ - hal_disable_ints(); // In case we got here via jmp 0x0 - hal_uart_init(); - i2c_init(); - bootconfig_init(); // Must come after i2c_init. - spif_init(); // Needed for get_flashdir. - - sr_leds->leds = 0xAAAA; - - putstr("\n\n>>> fpga_bootloader <<<\n"); - - putstr("\nBOOTSTS "); - int bootsts = icap_read_config_reg(rBOOTSTS); - puthex32_nl(bootsts); - putstr("STAT "); - int stat = icap_read_config_reg(rSTAT); - puthex32_nl(stat); - - bool fallback = - ((bootsts & (BOOTSTS_VALID_0 | BOOTSTS_FALLBACK_0)) - == (BOOTSTS_VALID_0 | BOOTSTS_FALLBACK_0)); - - if (fallback){ - puts("FALLBACK_0 is set"); - // FIXME handle fallback condition. - } - - const struct flashdir *fd = get_flashdir(); - if (fd == 0) - abort(); - - eeprom_boot_info_t *ee = _bc_get_eeprom_shadow(); - - if (VERBOSE){ - putstr("nattempts: "); - puthex8_nl(ee->nattempts); - } - - mdelay(500); // wait for low-pass on switches - putstr("switches: "); puthex32_nl(readback->switches); - - bool center_btn_down = (readback->switches & BTN_CENTER) != 0; - if (center_btn_down){ - putstr("Center button is down!\n"); - // Force boot of image 0:0 - ee->next_boot = make_bootconfig(0, 0); - } - - // if next_boot is valid, try it - if (plausible_bootconfig(ee->next_boot)) - initial_boot_attempt(ee); // no return - - // if default_boot is valid, try it - if (plausible_bootconfig(ee->default_boot)){ - ee->next_boot = ee->default_boot; - initial_boot_attempt(ee); // no return - } - - // If we're here, we're in trouble. Try all of them... - for (int i = 0; i < 4; i++){ - bootconfig_t bc = make_bootconfig(i, 0); - if (plausible_bootconfig(bc)){ - ee->next_boot = bc; - initial_boot_attempt(ee); // no return - } - } - - // FIXME, try to find something we can load - puts("\n!!! Failed to find a valid FPGA bitstream!\n\n"); - - return 0; -} diff --git a/firmware/microblaze/usrp2p/bootloader/fw_bootloader.c b/firmware/microblaze/usrp2p/bootloader/fw_bootloader.c deleted file mode 100644 index a2c32bf8e..000000000 --- a/firmware/microblaze/usrp2p/bootloader/fw_bootloader.c +++ /dev/null @@ -1,50 +0,0 @@ -/* -*- c -*- */ -/* - * Copyright 2009 Ettus Research LLC - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - -#include <memory_map.h> -#include <nonstdio.h> -#include <stdlib.h> -#include <bootconfig.h> -#include <bootconfig_private.h> -#include <bootloader_utils.h> -#include <hal_interrupts.h> - - -void hal_uart_init(void); -void spif_init(void); -void i2c_init(void); -void bootconfig_init(void); - -void pic_interrupt_handler() __attribute__ ((interrupt_handler)); - -void pic_interrupt_handler() -{ - // nop stub -} - -int -main(int argc, char **argv) -{ - hal_disable_ints(); // In case we got here via jmp 0x0 - hal_uart_init(); - i2c_init(); - bootconfig_init(); // Must come after i2c_init. - spif_init(); // Needed for get_flashdir. - - load_firmware(); -} diff --git a/firmware/microblaze/usrp2p/bootloader/icap_test.c b/firmware/microblaze/usrp2p/bootloader/icap_test.c deleted file mode 100644 index 5feb9d014..000000000 --- a/firmware/microblaze/usrp2p/bootloader/icap_test.c +++ /dev/null @@ -1,31 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2010 Ettus Research LLC - * - */ - -#include <memory_map.h> -#include <hal_io.h> -#include <xilinx_s3_icap.h> -#include <nonstdio.h> - -void delay(uint32_t t) { - while(t-- != 0) asm("NOP"); -} - - -int main(int argc, char *argv[]) { - pic_init(); - hal_uart_init(); - puts("\nStarting delay...\n"); - - output_regs->leds = 0xFF; - delay(4000000); - output_regs->leds = 0x00; - delay(4000000); - - puts("Rebooting FPGA to 0x00000000\n"); - icap_reload_fpga((uint32_t)0x00000000); - - return 0; -} diff --git a/firmware/microblaze/usrp2p/bootloader/init_bootloader.c b/firmware/microblaze/usrp2p/bootloader/init_bootloader.c deleted file mode 100644 index cfa80ffea..000000000 --- a/firmware/microblaze/usrp2p/bootloader/init_bootloader.c +++ /dev/null @@ -1,120 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2010 Ettus Research LLC - * - */ - -#include <memory_map.h> -#include <nonstdio.h> -#include <hal_io.h> -#include <xilinx_s3_icap.h> -#include <spi_flash.h> -#include <spi_flash_private.h> -//#include <clocks.h> -#include <ihex.h> -#include <bootloader_utils.h> -#include <string.h> -#include <hal_uart.h> -#include <i2c.h> -#include "usrp2/fw_common.h" - -//void pic_interrupt_handler() __attribute__ ((interrupt_handler)); - -void pic_interrupt_handler() -{ - // nop stub -} - -void load_ihex(void) { //simple IHEX parser to load proper records into RAM. loads program when it receives end of record. - char buf[128]; //input data buffer - uint8_t ihx[32]; //ihex data buffer - - ihex_record_t ihex_record; - ihex_record.data = ihx; - - while(1) { - gets(buf); - - if(!ihex_parse(buf, &ihex_record)) { //RAM data record is valid - if(ihex_record.addr >= RAM_BASE) { //it's expecting to see FULLY RELOCATED IHX RECORDS. every address referenced to 0x8000, including vectors. - memcpy((void *) (ihex_record.addr), ihex_record.data, ihex_record.length); - puts("OK"); - } else if(ihex_record.type == 1) { //end of record - puts("OK"); - //load main firmware - start_program(); - puts("ERROR: main image returned! Back in IHEX load mode."); - } else puts("NOK"); //RAM loads do not support extended segment address records (04) -- upper 16 bits are always "0". - } else puts("NOK"); - } -} - -void delay(uint32_t t) { - while(t-- != 0) asm("NOP"); -} - -int main(int argc, char *argv[]) { - hal_disable_ints(); // In case we got here via jmp 0x0 - output_regs->leds = 0xFF; - delay(5000); - output_regs->leds = 0x00; - hal_uart_init(); - spif_init(); - i2c_init(); //for EEPROM - puts("USRP2+ bootloader super ultra ZPU edition\n"); - - bool production_image = find_safe_booted_flag(); - set_safe_booted_flag(0); //haven't booted yet - - if(BUTTON_PUSHED) { //see memory_map.h - puts("Starting USRP2+ in safe mode."); - if(is_valid_fw_image(SAFE_FW_IMAGE_LOCATION_ADDR)) { - set_safe_booted_flag(1); //let the firmware know it's the safe image - spi_flash_read(SAFE_FW_IMAGE_LOCATION_ADDR, FW_IMAGE_SIZE_BYTES, (void *)RAM_BASE); - start_program(); - puts("ERROR: return from main program! This should never happen!"); - icap_reload_fpga(SAFE_FPGA_IMAGE_LOCATION_ADDR); - } else { - puts("ERROR: no safe firmware image available. I am a brick. Feel free to load IHEX to RAM."); - load_ihex(); - } - } - - if(!production_image) { - puts("Checking for valid production FPGA image..."); - if(is_valid_fpga_image(PROD_FPGA_IMAGE_LOCATION_ADDR)) { - puts("Valid production FPGA image found. Attempting to boot."); - set_safe_booted_flag(1); - delay(300); //so serial output can finish - icap_reload_fpga(PROD_FPGA_IMAGE_LOCATION_ADDR); - } - puts("No valid production FPGA image found.\nAttempting to load production firmware..."); - } - if(is_valid_fw_image(PROD_FW_IMAGE_LOCATION_ADDR)) { - puts("Valid production firmware found. Loading..."); - spi_flash_read(PROD_FW_IMAGE_LOCATION_ADDR, FW_IMAGE_SIZE_BYTES, (void *)RAM_BASE); - puts("Finished loading. Starting image."); - delay(300); - start_program(); - puts("ERROR: Return from main program! This should never happen!"); - //if this happens, though, the safest thing to do is reboot the whole FPGA and start over. - delay(300); - icap_reload_fpga(SAFE_FPGA_IMAGE_LOCATION_ADDR); - return 1; - } - puts("No valid production firmware found. Trying safe firmware..."); - if(is_valid_fw_image(SAFE_FW_IMAGE_LOCATION_ADDR)) { - spi_flash_read(SAFE_FW_IMAGE_LOCATION_ADDR, FW_IMAGE_SIZE_BYTES, (void *)RAM_BASE); - puts("Finished loading. Starting image."); - delay(300); - start_program(); - puts("ERROR: return from main program! This should never happen!"); - delay(300); - icap_reload_fpga(SAFE_FPGA_IMAGE_LOCATION_ADDR); - return 1; - } - puts("ERROR: no safe firmware image available. I am a brick. Feel free to load IHEX to RAM."); - load_ihex(); - - return 0; -} diff --git a/firmware/microblaze/usrp2p/bootloader/serial_loader_burner.c b/firmware/microblaze/usrp2p/bootloader/serial_loader_burner.c deleted file mode 100644 index 4ac4df454..000000000 --- a/firmware/microblaze/usrp2p/bootloader/serial_loader_burner.c +++ /dev/null @@ -1,49 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2009 Ettus Research LLC - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - -#include <hal_io.h> -#include <nonstdio.h> -#include <mdelay.h> -#include <gdbstub2.h> - -void hal_uart_init(void); -void spif_init(void); - -void pic_interrupt_handler() __attribute__ ((interrupt_handler)); - -void pic_interrupt_handler() -{ - // nop stub -} - -int -main(int argc, char **argv) -{ - hal_uart_init(); - spif_init(); - - sr_leds->leds = 0; - mdelay(100); - sr_leds->leds = ~0; - mdelay(100); - sr_leds->leds = 0; - - puts("\n\n>>> stage1: serial_loader_burner <<<"); - - gdbstub2_main_loop(); -} diff --git a/firmware/microblaze/usrp2p/bootloader/spi_bootloader.c b/firmware/microblaze/usrp2p/bootloader/spi_bootloader.c deleted file mode 100644 index 678e66cf7..000000000 --- a/firmware/microblaze/usrp2p/bootloader/spi_bootloader.c +++ /dev/null @@ -1,134 +0,0 @@ -/* -*- c -*- */ -/* - * Copyright 2009 Ettus Research LLC - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - -#include <hal_io.h> -#include <nonstdio.h> -#include <mdelay.h> -#include <spi_flash.h> -#include <quadradio/flashdir.h> -#include <quadradio/simple_binary_format.h> -#include <stdlib.h> - - -void hal_uart_init(void); -void spif_init(void); - -void pic_interrupt_handler() __attribute__ ((interrupt_handler)); - -void pic_interrupt_handler() -{ - // nop stub -} - -static void -error(int e) -{ - putstr("ERR"); - puthex8(e); - newline(); -} - -static void -load(uint32_t flash_addr, uint32_t ram_addr, uint32_t size) -{ - spi_flash_read(flash_addr, size, (void *) ram_addr); -} - -static bool -load_from_slot(const struct flashdir *fd, int fw_slot) -{ - putstr("Loading f/w image "); - putchar('0' + fw_slot); - putstr("... "); - - if (fw_slot >= fd->fw_nslots){ - error(1); - return false; - } - - int slot = fw_slot + fd->fw_slot0; - if (fd->slot[slot].start == 0 || fd->slot[slot].start == 0xffff - || fd->slot[slot].len == 0 || fd->slot[slot].len == 0xffff){ - error(2); - return false; - } - - uint32_t sbf_base = fd->slot[slot].start << spi_flash_log2_sector_size(); - uint32_t sbf_len = fd->slot[slot].len << spi_flash_log2_sector_size(); - uint32_t sbf_offset = 0; - - struct sbf_header sbf; - spi_flash_read(sbf_base, sizeof(struct sbf_header), &sbf); - if (sbf.magic != SBF_MAGIC || sbf.nsections > SBF_MAX_SECTIONS){ - error(3); - return false; - } - sbf_offset += sizeof(struct sbf_header); - - unsigned int i; - for (i = 0; i < sbf.nsections; i++){ - if (sbf_offset + sbf.sec_desc[i].length > sbf_len){ - error(4); - return false; - } - load(sbf_offset + sbf_base, - sbf.sec_desc[i].target_addr, - sbf.sec_desc[i].length); - sbf_offset += sbf.sec_desc[i].length; - } - putstr("Done!"); - - typedef void (*fptr_t)(void); - (*(fptr_t) sbf.entry)(); // almost certainly no return - - return true; -} - -int -main(int argc, char **argv) -{ - hal_uart_init(); - spif_init(); - - sr_leds->leds = 0; - mdelay(100); - sr_leds->leds = ~0; - mdelay(100); - sr_leds->leds = 0; - - putstr("\n>>> spi_bootloader <<<\n"); - - const struct flashdir *fd = get_flashdir(); - if (fd == 0) - abort(); - - while(1){ - int sw; - int fw_slot; - - sw = readback->switches; - fw_slot = sw & 0x7; - - if (!load_from_slot(fd, fw_slot)){ - if (fw_slot != 0){ - putstr("Falling back to slot 0\n"); - load_from_slot(fd, 0); - } - } - } -} diff --git a/firmware/microblaze/usrp2p/bootloader/u2p2-rom.ld b/firmware/microblaze/usrp2p/bootloader/u2p2-rom.ld deleted file mode 100644 index 4c9eaa8e5..000000000 --- a/firmware/microblaze/usrp2p/bootloader/u2p2-rom.ld +++ /dev/null @@ -1,190 +0,0 @@ -/* - * Same as default, but with bss and stack moved to top 2K of main ram - * Copied from qr-rom.ld - */ - -/* Default linker script, for normal executables */ -OUTPUT_FORMAT("elf32-microblaze", "", "") -/*SEARCH_DIR("/home/eb/build/Xilinx_EDK_GNU_10.1i/mb/release/lin/mb/microblaze-xilinx-elf/lib");*/ - - -ENTRY(_start) -_TEXT_START_ADDR = DEFINED(_TEXT_START_ADDR) ? _TEXT_START_ADDR : 0x50; -_HEAP_SIZE = DEFINED(_HEAP_SIZE) ? _HEAP_SIZE : 0x0; -_STACK_SIZE = DEFINED(_STACK_SIZE) ? _STACK_SIZE : 0x400; -_BSS_START_ADDR = DEFINED(_BSS_START_ADDR) ? _BSS_START_ADDR : 0xF800; -SECTIONS -{ - .vectors.reset 0x0 : { KEEP (*(.vectors.reset)) } = 0 - .vectors.sw_exception 0x8 : { KEEP (*(.vectors.sw_exception)) } = 0 - .vectors.interrupt 0x10 : { KEEP (*(.vectors.interrupt)) } = 0 - .vectors.debug_sw_break 0x18 : { KEEP (*(.vectors.debug_sw_break)) } = 0 - .vectors.hw_exception 0x20 : { KEEP (*(.vectors.hw_exception)) } = 0 - . = _TEXT_START_ADDR; - _ftext = .; - .text : { - *(.text) - *(.text.*) - *(.gnu.linkonce.t.*) - } - _etext = .; - .init : { KEEP (*(.init)) } =0 - .fini : { KEEP (*(.fini)) } =0 - PROVIDE (__CTOR_LIST__ = .); - PROVIDE (___CTOR_LIST__ = .); - .ctors : - { - /* gcc uses crtbegin.o to find the start of - the constructors, so we make sure it is - first. Because this is a wildcard, it - doesn't matter if the user does not - actually link against crtbegin.o; the - linker won't look for a file to match a - wildcard. The wildcard also means that it - doesn't matter which directory crtbegin.o - is in. */ - KEEP (*crtbegin.o(.ctors)) - /* We don't want to include the .ctor section from - from the crtend.o file until after the sorted ctors. - The .ctor section from the crtend file contains the - end of ctors marker and it must be last */ - KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors)) - KEEP (*(SORT(.ctors.*))) - KEEP (*(.ctors)) - } - PROVIDE (__CTOR_END__ = .); - PROVIDE (___CTOR_END__ = .); - PROVIDE (__DTOR_LIST__ = .); - PROVIDE (___DTOR_LIST__ = .); - .dtors : - { - KEEP (*crtbegin.o(.dtors)) - KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors)) - KEEP (*(SORT(.dtors.*))) - KEEP (*(.dtors)) - } - PROVIDE (__DTOR_END__ = .); - PROVIDE (___DTOR_END__ = .); - . = ALIGN(4); - _frodata = . ; - .rodata : { - *(.rodata) - *(.rodata.*) - *(.gnu.linkonce.r.*) - CONSTRUCTORS; /* Is this needed? */ - } - _erodata = .; - /* Alignments by 8 to ensure that _SDA2_BASE_ on a word boundary */ - /* Note that .sdata2 and .sbss2 must be contiguous */ - . = ALIGN(8); - _ssrw = .; - .sdata2 : { - *(.sdata2) - *(.sdata2.*) - *(.gnu.linkonce.s2.*) - } - . = ALIGN(4); - .sbss2 : { - PROVIDE (__sbss2_start = .); - *(.sbss2) - *(.sbss2.*) - *(.gnu.linkonce.sb2.*) - PROVIDE (__sbss2_end = .); - } - . = ALIGN(8); - _essrw = .; - _ssrw_size = _essrw - _ssrw; - PROVIDE (_SDA2_BASE_ = _ssrw + (_ssrw_size / 2 )); - . = ALIGN(4); - _fdata = .; - .data : { - *(.data) - *(.gnu.linkonce.d.*) - CONSTRUCTORS; /* Is this needed? */ - } - _edata = . ; - /* Added to handle pic code */ - .got : { - *(.got) - } - .got1 : { - *(.got1) - } - .got2 : { - *(.got2) - } - /* Added by Sathya to handle C++ exceptions */ - .eh_frame : { - *(.eh_frame) - } - .jcr : { - *(.jcr) - } - .gcc_except_table : { - *(.gcc_except_table) - } - /* Alignments by 8 to ensure that _SDA_BASE_ on a word boundary */ - /* Note that .sdata and .sbss must be contiguous */ - . = ALIGN(8); - _ssro = .; - .sdata : { - *(.sdata) - *(.sdata.*) - *(.gnu.linkonce.s.*) - } - . = ALIGN(4); - .sbss : { - PROVIDE (__sbss_start = .); - *(.sbss) - *(.sbss.*) - *(.gnu.linkonce.sb.*) - PROVIDE (__sbss_end = .); - } - . = ALIGN(8); - _essro = .; - _ssro_size = _essro - _ssro; - PROVIDE (_SDA_BASE_ = _ssro + (_ssro_size / 2 )); - . = _BSS_START_ADDR; - . = ALIGN(4); - _fbss = .; - .bss : { - PROVIDE (__bss_start = .); - *(.bss) - *(.bss.*) - *(.gnu.linkonce.b.*) - *(COMMON) - . = ALIGN(4); - PROVIDE (__bss_end = .); - } - . = ALIGN(4); - .heap : { - _heap = .; - _heap_start = .; - . += _HEAP_SIZE; - _heap_end = .; - } - _end = .; - . = ALIGN(4); - . = 0xFFF0; - .stack : { - /* - _stack_end = .; - . += _STACK_SIZE; - . = ALIGN(8); - _stack = .; - _end = .; - */ - _stack_end = .; - _stack = .; - } - .tdata : { - *(.tdata) - *(.tdata.*) - *(.gnu.linkonce.td.*) - } - .tbss : { - *(.tbss) - *(.tbss.*) - *(.gnu.linkonce.tb.*) - } -} |