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https://github.com/brain-hackers/u-boot-brain
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25ddd1fb0a
CONFIG_SYS_GBL_DATA_SIZE has always been just a bad workarond for not being able to use "sizeof(struct global_data)" in assembler files. Recent experience has shown that manual synchronization is not reliable enough. This patch renames CONFIG_SYS_GBL_DATA_SIZE into GENERATED_GBL_DATA_SIZE which gets automatically generated by the asm-offsets tool. In the result, all definitions of this value can be deleted from the board config files. We have to make sure that all files that reference such data include the new <asm-offsets.h> file. No other changes have been done yet, but it is obvious that similar changes / simplifications can be done for other, related macro definitions as well. Signed-off-by: Wolfgang Denk <wd@denx.de> Acked-by: Kumar Gala <galak@kernel.crashing.org>
183 lines
4.5 KiB
C
183 lines
4.5 KiB
C
/*
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* (C) Copyright 2003, Psyent Corporation <www.psyent.com>
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* Scott McNutt <smcnutt@psyent.com>
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*
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* (C) Copyright 2000-2002
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <stdio_dev.h>
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#include <watchdog.h>
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#include <malloc.h>
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#include <mmc.h>
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#include <net.h>
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#ifdef CONFIG_STATUS_LED
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#include <status_led.h>
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#endif
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#if defined(CONFIG_SYS_NIOS_EPCSBASE)
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#include <nios2-epcs.h>
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#endif
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#ifdef CONFIG_CMD_NAND
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#include <nand.h> /* cannot even include nand.h if it isnt configured */
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#endif
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DECLARE_GLOBAL_DATA_PTR;
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/*
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* All attempts to come up with a "common" initialization sequence
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* that works for all boards and architectures failed: some of the
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* requirements are just _too_ different. To get rid of the resulting
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* mess of board dependend #ifdef'ed code we now make the whole
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* initialization sequence configurable to the user.
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*
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* The requirements for any new initalization function is simple: it
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* receives a pointer to the "global data" structure as it's only
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* argument, and returns an integer return code, where 0 means
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* "continue" and != 0 means "fatal error, hang the system".
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*/
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typedef int (init_fnc_t) (void);
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/************************************************************************
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* Initialization sequence *
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***********************************************************************/
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init_fnc_t *init_sequence[] = {
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#if defined(CONFIG_BOARD_EARLY_INIT_F)
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board_early_init_f, /* Call board-specific init code early.*/
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#endif
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#if defined(CONFIG_SYS_NIOS_EPCSBASE)
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epcs_reset,
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#endif
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env_init,
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serial_init,
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console_init_f,
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display_options,
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checkcpu,
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checkboard,
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NULL, /* Terminate this list */
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};
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/***********************************************************************/
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void board_init (void)
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{
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bd_t *bd;
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init_fnc_t **init_fnc_ptr;
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/* Pointer is writable since we allocated a register for it.
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* Nios treats CONFIG_SYS_GBL_DATA_OFFSET as an address.
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*/
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gd = (gd_t *)CONFIG_SYS_GBL_DATA_OFFSET;
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/* compiler optimization barrier needed for GCC >= 3.4 */
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__asm__ __volatile__("": : :"memory");
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memset( gd, 0, GENERATED_GBL_DATA_SIZE );
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gd->bd = (bd_t *)(gd+1); /* At end of global data */
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gd->baudrate = CONFIG_BAUDRATE;
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gd->cpu_clk = CONFIG_SYS_CLK_FREQ;
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bd = gd->bd;
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bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
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bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
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#ifndef CONFIG_SYS_NO_FLASH
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bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
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#endif
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#if defined(CONFIG_SYS_SRAM_BASE) && defined(CONFIG_SYS_SRAM_SIZE)
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bd->bi_sramstart= CONFIG_SYS_SRAM_BASE;
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bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE;
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#endif
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bd->bi_baudrate = CONFIG_BAUDRATE;
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for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
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WATCHDOG_RESET ();
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if ((*init_fnc_ptr) () != 0) {
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hang ();
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}
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}
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WATCHDOG_RESET ();
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/* The Malloc area is immediately below the monitor copy in RAM */
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mem_malloc_init(CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN);
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#ifndef CONFIG_SYS_NO_FLASH
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WATCHDOG_RESET ();
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bd->bi_flashsize = flash_init();
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#endif
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#ifdef CONFIG_CMD_NAND
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puts("NAND: ");
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nand_init();
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#endif
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#ifdef CONFIG_GENERIC_MMC
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puts("MMC: ");
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mmc_initialize(bd);
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#endif
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WATCHDOG_RESET ();
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env_relocate();
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bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
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WATCHDOG_RESET ();
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stdio_init();
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jumptable_init();
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console_init_r();
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WATCHDOG_RESET ();
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interrupt_init ();
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#if defined(CONFIG_BOARD_LATE_INIT)
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board_late_init ();
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#endif
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#if defined(CONFIG_CMD_NET)
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#if defined(CONFIG_NET_MULTI)
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puts ("Net: ");
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#endif
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eth_initialize (bd);
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#endif
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/* main_loop */
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for (;;) {
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WATCHDOG_RESET ();
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main_loop ();
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}
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}
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/***********************************************************************/
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void hang (void)
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{
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disable_interrupts ();
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puts("### ERROR ### Please reset board ###\n");
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for (;;);
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}
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