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x86: Split init functions out of board.c

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This patch moves towards reducing board.c to simply a set of init cores for
the three initialisation phases (Flash, Flash/RAM, and RAM), a set of three
init function arrays and a init function array processing function
This commit is contained in:
Graeme Russ 2011-12-23 16:51:29 +11:00
parent b156ff09aa
commit d47ab0ecde
6 changed files with 438 additions and 221 deletions
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39
arch/x86/include/asm/init_helpers.h Normal file
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@ -0,0 +1,39 @@
/*
* (C) Copyright 2011
* Graeme Russ, <graeme.russ@gmail.com>
*
* 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
*/
#ifndef _INIT_HELPERS_H_
#define _INIT_HELPERS_H_
int display_banner(void);
int display_dram_config(void);
int init_baudrate_f(void);
int mem_malloc_init_r(void);
int init_bd_struct_r(void);
int flash_init_r(void);
int init_ip_address_r(void);
int status_led_set_r(void);
int set_bootfile_r(void);
int set_load_addr_r(void);
#endif /* !_INIT_HELPERS_H_ */

42
arch/x86/include/asm/init_wrappers.h Normal file
View file

@ -0,0 +1,42 @@
/*
* (C) Copyright 2011
* Graeme Russ, <graeme.russ@gmail.com>
*
* 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
*/
#ifndef _INIT_WRAPPERS_H_
#define _INIT_WRAPPERS_H_
int serial_initialize_r(void);
int env_relocate_r(void);
int pci_init_r(void);
int jumptable_init_r(void);
int pcmcia_init_r(void);
int kgdb_init_r(void);
int enable_interrupts_r(void);
int eth_initialize_r(void);
int reset_phy_r(void);
int ide_init_r(void);
int scsi_init_r(void);
int doc_init_r(void);
int bb_miiphy_init_r(void);
int post_run_r(void);
#endif /* !_INIT_WRAPPERS_H_ */

2
arch/x86/lib/Makefile
View file

@ -34,6 +34,8 @@ COBJS-y += board.o
COBJS-y += bootm.o COBJS-y += bootm.o
COBJS-y += cmd_boot.o COBJS-y += cmd_boot.o
COBJS-y += gcc.o COBJS-y += gcc.o
COBJS-y += init_helpers.o
COBJS-y += init_wrappers.o
COBJS-y += interrupts.o COBJS-y += interrupts.o
COBJS-$(CONFIG_SYS_PCAT_INTERRUPTS) += pcat_interrupts.o COBJS-$(CONFIG_SYS_PCAT_INTERRUPTS) += pcat_interrupts.o
COBJS-$(CONFIG_SYS_GENERIC_TIMER) += pcat_timer.o COBJS-$(CONFIG_SYS_GENERIC_TIMER) += pcat_timer.o

297
arch/x86/lib/board.c
View file

@ -33,62 +33,12 @@
#include <common.h> #include <common.h>
#include <watchdog.h> #include <watchdog.h>
#include <command.h>
#include <stdio_dev.h> #include <stdio_dev.h>
#include <version.h>
#include <malloc.h>
#include <net.h>
#include <ide.h>
#include <serial.h>
#include <asm/u-boot-x86.h> #include <asm/u-boot-x86.h>
#include <asm/processor.h> #include <asm/processor.h>
#ifdef CONFIG_BITBANGMII #include <asm/init_helpers.h>
#include <miiphy.h> #include <asm/init_wrappers.h>
#endif
/************************************************************************
* 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 init_baudrate(void)
{
gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
return 0;
}
static int display_banner(void)
{
printf("\n\n%s\n\n", version_string);
return 0;
}
static int display_dram_config(void)
{
int i;
puts("DRAM Configuration:\n");
for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
printf("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
print_size(gd->bd->bi_dram[i].size, "\n");
}
return 0;
}
#ifndef CONFIG_SYS_NO_FLASH
static void display_flash_config(ulong size)
{
puts("Flash: ");
print_size(size, "\n");
}
#endif
/* /*
* Breath some life into the board... * Breath some life into the board...
@ -122,7 +72,7 @@ init_fnc_t *init_sequence_f[] = {
cpu_init_f, cpu_init_f,
board_early_init_f, board_early_init_f,
env_init, env_init,
init_baudrate, init_baudrate_f,
serial_init, serial_init,
console_init_f, console_init_f,
dram_init_f, dram_init_f,
@ -132,17 +82,81 @@ init_fnc_t *init_sequence_f[] = {
}; };
init_fnc_t *init_sequence_r[] = { init_fnc_t *init_sequence_r[] = {
cpu_init_r, /* basic cpu dependent setup */ init_bd_struct_r,
board_early_init_r, /* basic board dependent setup */ mem_malloc_init_r,
dram_init, /* configure available RAM banks */ cpu_init_r,
interrupt_init, /* set up exceptions */ board_early_init_r,
dram_init,
interrupt_init,
timer_init, timer_init,
display_banner, display_banner,
display_dram_config, display_dram_config,
#ifdef CONFIG_SERIAL_MULTI
serial_initialize_r,
#endif
#ifndef CONFIG_SYS_NO_FLASH
flash_init_r,
#endif
env_relocate_r,
#ifdef CONFIG_CMD_NET
init_ip_address_r,
#endif
#ifdef CONFIG_PCI
pci_init_r,
#endif
stdio_init,
jumptable_init_r,
console_init_r,
#ifdef CONFIG_MISC_INIT_R
misc_init_r,
#endif
#if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_CMD_IDE)
pci_init_r,
#endif
#if defined(CONFIG_CMD_KGDB)
kgdb_init_r,
#endif
enable_interrupts_r,
#ifdef CONFIG_STATUS_LED
status_led_set_r,
#endif
set_load_addr_r,
#if defined(CONFIG_CMD_NET)
set_bootfile_r,
#endif
#if defined(CONFIG_CMD_IDE)
ide_init_r,
#endif
#if defined(CONFIG_CMD_SCSI)
scsi_init_r,
#endif
#if defined(CONFIG_CMD_DOC)
doc_init_r,
#endif
#ifdef CONFIG_BITBANGMII
bb_miiphy_init_r,
#endif
#if defined(CONFIG_CMD_NET)
eth_initialize_r,
#ifdef CONFIG_RESET_PHY_R
reset_phy_r,
#endif
#endif
#ifdef CONFIG_LAST_STAGE_INIT
last_stage_init,
#endif
NULL, NULL,
}; };
static void do_init_loop(init_fnc_t **init_fnc_ptr)
{
for (; *init_fnc_ptr; ++init_fnc_ptr) {
WATCHDOG_RESET();
if ((*init_fnc_ptr)() != 0)
hang();
}
}
static int calculate_relocation_address(void) static int calculate_relocation_address(void)
{ {
ulong text_start = (ulong)&__text_start; ulong text_start = (ulong)&__text_start;
@ -179,17 +193,12 @@ static int calculate_relocation_address(void)
return 0; return 0;
} }
/* Load U-Boot into RAM, initialize BSS, perform relocation adjustments */ /* Perform all steps necessary to get RAM initialised ready for relocation */
void board_init_f(ulong boot_flags) void board_init_f(ulong boot_flags)
{ {
init_fnc_t **init_fnc_ptr;
gd->flags = boot_flags; gd->flags = boot_flags;
for (init_fnc_ptr = init_sequence_f; *init_fnc_ptr; ++init_fnc_ptr) { do_init_loop(init_sequence_f);
if ((*init_fnc_ptr)() != 0)
hang();
}
/* /*
* SDRAM is now initialised, U-Boot has been copied into SDRAM, * SDRAM is now initialised, U-Boot has been copied into SDRAM,
@ -247,166 +256,12 @@ static int copy_gd_to_ram(void)
void board_init_r(gd_t *id, ulong dest_addr) void board_init_r(gd_t *id, ulong dest_addr)
{ {
#if defined(CONFIG_CMD_NET) gd->flags |= GD_FLG_RELOC;
char *s;
#endif
#ifndef CONFIG_SYS_NO_FLASH
ulong size;
#endif
static bd_t bd_data;
init_fnc_t **init_fnc_ptr;
show_boot_progress(0x21);
/* compiler optimization barrier needed for GCC >= 3.4 */ /* compiler optimization barrier needed for GCC >= 3.4 */
__asm__ __volatile__("" : : : "memory"); __asm__ __volatile__("" : : : "memory");
gd->flags |= GD_FLG_RELOC; do_init_loop(init_sequence_r);
gd->bd = &bd_data;
memset(gd->bd, 0, sizeof(bd_t));
show_boot_progress(0x22);
gd->baudrate = CONFIG_BAUDRATE;
mem_malloc_init((((ulong)dest_addr - CONFIG_SYS_MALLOC_LEN)+3)&~3,
CONFIG_SYS_MALLOC_LEN);
for (init_fnc_ptr = init_sequence_r; *init_fnc_ptr; ++init_fnc_ptr) {
if ((*init_fnc_ptr)() != 0)
hang();
}
show_boot_progress(0x23);
#ifdef CONFIG_SERIAL_MULTI
serial_initialize();
#endif
#ifndef CONFIG_SYS_NO_FLASH
/* configure available FLASH banks */
size = flash_init();
display_flash_config(size);
show_boot_progress(0x24);
#endif
show_boot_progress(0x25);
/* initialize environment */
env_relocate();
show_boot_progress(0x26);
#ifdef CONFIG_CMD_NET
/* IP Address */
bd_data.bi_ip_addr = getenv_IPaddr("ipaddr");
#endif
#if defined(CONFIG_PCI)
/*
* Do pci configuration
*/
pci_init();
#endif
show_boot_progress(0x27);
stdio_init();
jumptable_init();
/* Initialize the console (after the relocation and devices init) */
console_init_r();
#ifdef CONFIG_MISC_INIT_R
/* miscellaneous platform dependent initialisations */
misc_init_r();
#endif
#if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_CMD_IDE)
WATCHDOG_RESET();
puts("PCMCIA:");
pcmcia_init();
#endif
#if defined(CONFIG_CMD_KGDB)
WATCHDOG_RESET();
puts("KGDB: ");
kgdb_init();
#endif
/* enable exceptions */
enable_interrupts();
show_boot_progress(0x28);
#ifdef CONFIG_STATUS_LED
status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
#endif
udelay(20);
/* Initialize from environment */
load_addr = getenv_ulong("loadaddr", 16, load_addr);
#if defined(CONFIG_CMD_NET)
s = getenv("bootfile");
if (s != NULL)
copy_filename(BootFile, s, sizeof(BootFile));
#endif
WATCHDOG_RESET();
#if defined(CONFIG_CMD_IDE)
WATCHDOG_RESET();
puts("IDE: ");
ide_init();
#endif
#if defined(CONFIG_CMD_SCSI)
WATCHDOG_RESET();
puts("SCSI: ");
scsi_init();
#endif
#if defined(CONFIG_CMD_DOC)
WATCHDOG_RESET();
puts("DOC: ");
doc_init();
#endif
#ifdef CONFIG_BITBANGMII
bb_miiphy_init();
#endif
#if defined(CONFIG_CMD_NET)
WATCHDOG_RESET();
puts("Net: ");
eth_initialize(gd->bd);
#endif
#if (defined(CONFIG_CMD_NET)) && (0)
WATCHDOG_RESET();
# ifdef DEBUG
puts("Reset Ethernet PHY\n");
# endif
reset_phy();
#endif
#ifdef CONFIG_LAST_STAGE_INIT
WATCHDOG_RESET();
/*
* Some parts can be only initialized if all others (like
* Interrupts) are up and running (i.e. the PC-style ISA
* keyboard).
*/
last_stage_init();
#endif
#ifdef CONFIG_POST
post_run(NULL, POST_RAM | post_bootmode_get(0));
#endif
show_boot_progress(0x29);
/* main_loop() can return to retry autoboot, if so just run it again. */ /* main_loop() can return to retry autoboot, if so just run it again. */
for (;;) for (;;)

142
arch/x86/lib/init_helpers.c Normal file
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@ -0,0 +1,142 @@
/*
* (C) Copyright 2011
* Graeme Russ, <graeme.russ@gmail.com>
*
* 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
*/
#include <common.h>
#include <command.h>
#include <stdio_dev.h>
#include <version.h>
#include <malloc.h>
#include <net.h>
#include <ide.h>
#include <serial.h>
#include <status_led.h>
#include <asm/u-boot-x86.h>
#include <asm/init_helpers.h>
DECLARE_GLOBAL_DATA_PTR;
/************************************************************************
* Init Utilities *
************************************************************************
* Some of this code should be moved into the core functions,
* or dropped completely,
* but let's get it working (again) first...
*/
int display_banner(void)
{
printf("\n\n%s\n\n", version_string);
return 0;
}
int display_dram_config(void)
{
int i;
puts("DRAM Configuration:\n");
for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
printf("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
print_size(gd->bd->bi_dram[i].size, "\n");
}
return 0;
}
int init_baudrate_f(void)
{
gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
return 0;
}
int mem_malloc_init_r(void)
{
mem_malloc_init(((gd->relocaddr - CONFIG_SYS_MALLOC_LEN)+3)&~3,
CONFIG_SYS_MALLOC_LEN);
return 0;
}
bd_t bd_data;
int init_bd_struct_r(void)
{
gd->bd = &bd_data;
memset(gd->bd, 0, sizeof(bd_t));
return 0;
}
#ifndef CONFIG_SYS_NO_FLASH
int flash_init_r(void)
{
ulong size;
puts("Flash: ");
/* configure available FLASH banks */
size = flash_init();
print_size(size, "\n");
return 0;
}
#endif
int init_ip_address_r(void)
{
/* IP Address */
bd_data.bi_ip_addr = getenv_IPaddr("ipaddr");
return 0;
}
#ifdef CONFIG_STATUS_LED
int status_led_set_r(void)
{
status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
return 0;
}
#endif
int set_bootfile_r(void)
{
char *s;
s = getenv("bootfile");
if (s != NULL)
copy_filename(BootFile, s, sizeof(BootFile));
return 0;
}
int set_load_addr_r(void)
{
/* Initialize from environment */
load_addr = getenv_ulong("loadaddr", 16, load_addr);
return 0;
}

137
arch/x86/lib/init_wrappers.c Normal file
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@ -0,0 +1,137 @@
/*
* (C) Copyright 2011
* Graeme Russ, <graeme.russ@gmail.com>
*
* 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
*/
#include <common.h>
#include <serial.h>
#include <kgdb.h>
#include <scsi.h>
#include <post.h>
#include <miiphy.h>
#include <asm/init_wrappers.h>
int serial_initialize_r(void)
{
serial_initialize();
return 0;
}
int env_relocate_r(void)
{
/* initialize environment */
env_relocate();
return 0;
}
int pci_init_r(void)
{
/* Do pci configuration */
pci_init();
return 0;
}
int jumptable_init_r(void)
{
jumptable_init();
return 0;
}
int pcmcia_init_r(void)
{
puts("PCMCIA:");
pcmcia_init();
return 0;
}
int kgdb_init_r(void)
{
puts("KGDB: ");
kgdb_init();
return 0;
}
int enable_interrupts_r(void)
{
/* enable exceptions */
enable_interrupts();
return 0;
}
int eth_initialize_r(void)
{
puts("Net: ");
eth_initialize(gd->bd);
return 0;
}
int reset_phy_r(void)
{
#ifdef DEBUG
puts("Reset Ethernet PHY\n");
#endif
reset_phy();
return 0;
}
int ide_init_r(void)
{
puts("IDE: ");
ide_init();
return 0;
}
int scsi_init_r(void)
{
puts("SCSI: ");
scsi_init();
return 0;
}
#ifdef CONFIG_BITBANGMII
int bb_miiphy_init_r(void)
{
bb_miiphy_init();
return 0;
}
#endif
#ifdef CONFIG_POST
int post_run_r(void)
{
post_run(NULL, POST_RAM | post_bootmode_get(0));
return 0;
}
#endif