diff options
Diffstat (limited to 'firmware/zpu/usrp2p/bootloader_utils.c')
-rw-r--r-- | firmware/zpu/usrp2p/bootloader_utils.c | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/firmware/zpu/usrp2p/bootloader_utils.c b/firmware/zpu/usrp2p/bootloader_utils.c deleted file mode 100644 index 1efa643b6..000000000 --- a/firmware/zpu/usrp2p/bootloader_utils.c +++ /dev/null @@ -1,104 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2010 Ettus Research LLC - * - */ - -//contains routines for loading programs from Flash. depends on Flash libraries. -//also contains routines for reading / writing EEPROM flags for the bootloader -#include <stdbool.h> -#include <string.h> -#include <bootloader_utils.h> -#include <spi_flash.h> -#include <i2c.h> -#include <memory_map.h> -#include <nonstdio.h> -#include <xilinx_s3_icap.h> -#include <mdelay.h> -#include "spi.h" - -#define BUTTON_PUSHED ((router_status->irqs & PIC_BUTTON) ? 0 : 1) - -int is_valid_fpga_image(uint32_t addr) { -// printf("is_valid_fpga_image(): starting with addr=%x...\n", addr); - uint8_t imgbuf[64]; - spi_flash_read(addr, 64, imgbuf); - //we're just looking for leading 0xFF padding, followed by the sync bytes 0xAA 0x99 - for(size_t i = 0; i<63; i++) { - if(imgbuf[i] == 0xFF) continue; - if(imgbuf[i] == 0xAA && imgbuf[i+1] == 0x99) { - //printf("is_valid_fpga_image(): found valid FPGA image\n"); - return 1; - } - } - - return 0; -} - -int is_valid_fw_image(uint32_t addr) { - static const uint8_t fwheader[] = {0x0b, 0x0b, 0x0b, 0x0b}; //just lookin for a jump to anywhere located at the reset vector - //printf("is_valid_fw_image(): starting with addr=%x...\n", addr); - uint8_t buf[12]; - spi_flash_read(addr, 4, buf); - //printf("is_valid_fw_image(): read "); - //for(int i = 0; i < 5; i++) printf("%x ", buf[i]); - //printf("\n"); - return memcmp(buf, fwheader, 4) == 0; -} - -void start_program(void) -{ - //ignoring the addr now - //all this does is tap that register - *((volatile uint32_t *) SR_ADDR_BLDRDONE) = 1; -} - -void do_the_bootload_thing(void) { - spif_init(); //initialize SPI flash clock - - 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. Loading safe firmware."); - return; - } - - 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); - mdelay(300); //so serial output can finish - icap_reload_fpga(PROD_FPGA_IMAGE_LOCATION_ADDR); - } - puts("No valid production FPGA image found.\nFalling through to built-in firmware."); - return; - } - 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."); - mdelay(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. - mdelay(300); - icap_reload_fpga(SAFE_FPGA_IMAGE_LOCATION_ADDR); - return; - } - puts("No valid production firmware found. Falling through to built-in 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."); - mdelay(300); - start_program(); - puts("ERROR: return from main program! This should never happen!"); - mdelay(300); - icap_reload_fpga(SAFE_FPGA_IMAGE_LOCATION_ADDR); - return; - } - puts("ERROR: no safe firmware image available. Falling through to built-in firmware."); - */ -} |