/* * U-boot - boot.c - misc boot helper functions * * Copyright (c) 2005-2008 Analog Devices Inc. * * (C) Copyright 2000-2004 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * Licensed under the GPL-2 or later. */ #include <common.h> #include <command.h> #include <image.h> #include <asm/blackfin.h> #ifdef SHARED_RESOURCES extern void swap_to(int device_id); #endif static char *make_command_line(void) { char *dest = (char *)CONFIG_LINUX_CMDLINE_ADDR; char *bootargs = getenv("bootargs"); if (bootargs == NULL) return NULL; strncpy(dest, bootargs, CONFIG_LINUX_CMDLINE_SIZE); dest[CONFIG_LINUX_CMDLINE_SIZE - 1] = 0; return dest; } extern ulong bfin_poweron_retx; int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images) { int (*appl) (char *cmdline); char *cmdline; if ((flag != 0) && (flag != BOOTM_STATE_OS_GO)) return 1; #ifdef SHARED_RESOURCES swap_to(FLASH); #endif appl = (int (*)(char *))images->ep; printf("Starting Kernel at = %p\n", appl); cmdline = make_command_line(); icache_disable(); dcache_disable(); asm __volatile__( "RETX = %[retx];" "CALL (%0);" : : "p"(appl), "q0"(cmdline), [retx] "d"(bfin_poweron_retx) ); /* does not return */ return 1; }