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Diffstat (limited to 'firmware/zpu/usrp2p/bootloader_utils.c')
-rw-r--r--firmware/zpu/usrp2p/bootloader_utils.c104
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.");
- */
-}