diff options
Diffstat (limited to 'arch/sandbox/lib/board.c')
| -rw-r--r-- | arch/sandbox/lib/board.c | 285 |
1 files changed, 0 insertions, 285 deletions
diff --git a/arch/sandbox/lib/board.c b/arch/sandbox/lib/board.c deleted file mode 100644 index 3752fab502..0000000000 --- a/arch/sandbox/lib/board.c +++ /dev/null @@ -1,285 +0,0 @@ -/* - * Copyright (c) 2011 The Chromium OS Authors. - * - * (C) Copyright 2002-2006 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Marius Groeger <mgroeger@sysgo.de> - * - * See file CREDITS for list of people who contributed to this - * project. - * - * 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 2 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, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -/* - * This file was taken from ARM and changed to remove things we don't - * need. This is most of it, so have tried to avoid being over-zealous! - * For example, we want to have an emulation of the 'DRAM' used by - * U-Boot. - * - * has been talk upstream of unifying the architectures w.r.t board.c, - * so the less change here the better. - */ - -#include <common.h> -#include <command.h> -#include <malloc.h> -#include <stdio_dev.h> -#include <timestamp.h> -#include <version.h> -#include <serial.h> - -#include <os.h> - -DECLARE_GLOBAL_DATA_PTR; - -static gd_t gd_mem; - -/************************************************************************ - * Init Utilities * - ************************************************************************ - * Some of this code should be moved into the core functions, - * or dropped completely, - * but let's get it working (again) first... - */ - -static int display_banner(void) -{ - display_options(); - - return 0; -} - -/** - * Configure and report on the DRAM configuration, which in our case is - * fairly simple. - */ -static int display_dram_config(void) -{ - ulong size = 0; - int i; - - debug("RAM Configuration:\n"); - - for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { -#ifdef DEBUG - printf("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start); - print_size(gd->bd->bi_dram[i].size, "\n"); -#endif - size += gd->bd->bi_dram[i].size; - } - puts("DRAM: "); - print_size(size, "\n"); - return 0; -} - -/* - * Breathe some life into the board... - * - * Initialize a serial port as console, and carry out some hardware - * tests. - * - * The first part of initialization is running from Flash memory; - * its main purpose is to initialize the RAM so that we - * can relocate the monitor code to RAM. - */ - -/* - * All attempts to come up with a "common" initialization sequence - * that works for all boards and architectures failed: some of the - * requirements are just _too_ different. To get rid of the resulting - * mess of board dependent #ifdef'ed code we now make the whole - * initialization sequence configurable to the user. - * - * The requirements for any new initalization function is simple: it - * receives a pointer to the "global data" structure as it's only - * argument, and returns an integer return code, where 0 means - * "continue" and != 0 means "fatal error, hang the system". - */ -typedef int (init_fnc_t) (void); - -void __dram_init_banksize(void) -{ - gd->bd->bi_dram[0].start = 0; - gd->bd->bi_dram[0].size = gd->ram_size; -} - -void dram_init_banksize(void) - __attribute__((weak, alias("__dram_init_banksize"))); - -init_fnc_t *init_sequence[] = { -#if defined(CONFIG_ARCH_CPU_INIT) - arch_cpu_init, /* basic arch cpu dependent setup */ -#endif -#if defined(CONFIG_BOARD_EARLY_INIT_F) - board_early_init_f, -#endif - timer_init, /* initialize timer */ - env_init, /* initialize environment */ - serial_init, /* serial communications setup */ - console_init_f, /* stage 1 init of console */ - sandbox_early_getopt_check, /* process command line flags (err/help) */ - display_banner, /* say that we are here */ -#if defined(CONFIG_DISPLAY_CPUINFO) - print_cpuinfo, /* display cpu info (and speed) */ -#endif -#if defined(CONFIG_DISPLAY_BOARDINFO) - checkboard, /* display board info */ -#endif - dram_init, /* configure available RAM banks */ - NULL, -}; - -void board_init_f(ulong bootflag) -{ - init_fnc_t **init_fnc_ptr; - uchar *mem; - unsigned long addr_sp, addr, size; - - gd = &gd_mem; - assert(gd); - - memset((void *)gd, 0, sizeof(gd_t)); - -#if defined(CONFIG_OF_EMBED) - /* Get a pointer to the FDT */ - gd->fdt_blob = _binary_dt_dtb_start; -#elif defined(CONFIG_OF_SEPARATE) - /* FDT is at end of image */ - gd->fdt_blob = (void *)(_end_ofs + _TEXT_BASE); -#endif - - for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) { - if ((*init_fnc_ptr)() != 0) - hang(); - } - - size = CONFIG_SYS_SDRAM_SIZE; - mem = os_malloc(CONFIG_SYS_SDRAM_SIZE); - - assert(mem); - gd->arch.ram_buf = mem; - addr = (ulong)(mem + size); - - /* - * reserve memory for malloc() arena - */ - addr_sp = addr - TOTAL_MALLOC_LEN; - debug("Reserving %dk for malloc() at: %08lx\n", - TOTAL_MALLOC_LEN >> 10, addr_sp); - /* - * (permanently) allocate a Board Info struct - * and a permanent copy of the "global" data - */ - addr_sp -= sizeof(bd_t); - gd->bd = (bd_t *) addr_sp; - debug("Reserving %zu Bytes for Board Info at: %08lx\n", - sizeof(bd_t), addr_sp); - - /* Ram ist board specific, so move it to board code ... */ - dram_init_banksize(); - display_dram_config(); /* and display it */ - - /* We don't relocate, so just run the post-relocation code */ - board_init_r(NULL, 0); - - /* NOTREACHED - no way out of command loop except booting */ -} - -/************************************************************************ - * - * This is the next part if the initialization sequence: we are now - * running from RAM and have a "normal" C environment, i. e. global - * data can be written, BSS has been cleared, the stack size in not - * that critical any more, etc. - * - ************************************************************************ - */ - -void board_init_r(gd_t *id, ulong dest_addr) -{ - - if (id) - gd = id; - - gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ - - serial_initialize(); - -#ifdef CONFIG_POST - post_output_backlog(); -#endif - - /* The Malloc area is at the top of simulated DRAM */ - mem_malloc_init((ulong)gd->arch.ram_buf + gd->ram_size - - TOTAL_MALLOC_LEN, TOTAL_MALLOC_LEN); - - /* initialize environment */ - env_relocate(); - - stdio_init(); /* get the devices list going. */ - - jumptable_init(); - - console_init_r(); /* fully init console as a device */ - -#if defined(CONFIG_DISPLAY_BOARDINFO_LATE) - checkboard(); -#endif - -#if defined(CONFIG_ARCH_MISC_INIT) - /* miscellaneous arch dependent initialisations */ - arch_misc_init(); -#endif -#if defined(CONFIG_MISC_INIT_R) - /* miscellaneous platform dependent initialisations */ - misc_init_r(); -#endif - - /* set up exceptions */ - interrupt_init(); - /* enable exceptions */ - enable_interrupts(); - -#ifdef CONFIG_BOARD_LATE_INIT - board_late_init(); -#endif - -#ifdef CONFIG_POST - post_run(NULL, POST_RAM | post_bootmode_get(0)); -#endif - - sandbox_main_loop_init(); - - /* - * For now, run the main loop. Later we might let this be done - * in the main program. - */ - while (1) - main_loop(); - - /* NOTREACHED - no way out of command loop except booting */ -} - -void hang(void) -{ - puts("### ERROR ### Please RESET the board ###\n"); - for (;;) - ; -} |