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author | Peter Tyser <ptyser@xes-inc.com> | 2010-04-12 22:28:04 -0500 |
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committer | Wolfgang Denk <wd@denx.de> | 2010-04-13 09:13:03 +0200 |
commit | ea0364f1bbfed1e3ea711147420875cf338fe77a (patch) | |
tree | 15c051bc4d2e94c1661c73e1b87c22c7beda7c24 /arch/arm/lib/board.c | |
parent | 89f39e177e7b0152aa1d3152baa25d986e36cdcf (diff) | |
download | u-boot-imx-ea0364f1bbfed1e3ea711147420875cf338fe77a.zip u-boot-imx-ea0364f1bbfed1e3ea711147420875cf338fe77a.tar.gz u-boot-imx-ea0364f1bbfed1e3ea711147420875cf338fe77a.tar.bz2 |
Move lib_$ARCH directories to arch/$ARCH/lib
Also move lib_$ARCH/config.mk to arch/$ARCH/config.mk
This change is intended to clean up the top-level directory structure
and more closely mimic Linux's directory organization.
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'arch/arm/lib/board.c')
-rw-r--r-- | arch/arm/lib/board.c | 452 |
1 files changed, 452 insertions, 0 deletions
diff --git a/arch/arm/lib/board.c b/arch/arm/lib/board.c new file mode 100644 index 0000000..f5660a9 --- /dev/null +++ b/arch/arm/lib/board.c @@ -0,0 +1,452 @@ +/* + * (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 + */ + +/* + * To match the U-Boot user interface on ARM platforms to the U-Boot + * standard (as on PPC platforms), some messages with debug character + * are removed from the default U-Boot build. + * + * Define DEBUG here if you want additional info as shown below + * printed upon startup: + * + * U-Boot code: 00F00000 -> 00F3C774 BSS: -> 00FC3274 + * IRQ Stack: 00ebff7c + * FIQ Stack: 00ebef7c + */ + +#include <common.h> +#include <command.h> +#include <malloc.h> +#include <stdio_dev.h> +#include <timestamp.h> +#include <version.h> +#include <net.h> +#include <serial.h> +#include <nand.h> +#include <onenand_uboot.h> +#include <mmc.h> + +#ifdef CONFIG_BITBANGMII +#include <miiphy.h> +#endif + +#ifdef CONFIG_DRIVER_SMC91111 +#include "../drivers/net/smc91111.h" +#endif +#ifdef CONFIG_DRIVER_LAN91C96 +#include "../drivers/net/lan91c96.h" +#endif + +DECLARE_GLOBAL_DATA_PTR; + +ulong monitor_flash_len; + +#ifdef CONFIG_HAS_DATAFLASH +extern int AT91F_DataflashInit(void); +extern void dataflash_print_info(void); +#endif + +#ifndef CONFIG_IDENT_STRING +#define CONFIG_IDENT_STRING "" +#endif + +const char version_string[] = + U_BOOT_VERSION" (" U_BOOT_DATE " - " U_BOOT_TIME ")"CONFIG_IDENT_STRING; + +#ifdef CONFIG_DRIVER_RTL8019 +extern void rtl8019_get_enetaddr (uchar * addr); +#endif + +#if defined(CONFIG_HARD_I2C) || \ + defined(CONFIG_SOFT_I2C) +#include <i2c.h> +#endif + + +/************************************************************************ + * Coloured LED functionality + ************************************************************************ + * May be supplied by boards if desired + */ +void inline __coloured_LED_init (void) {} +void coloured_LED_init (void) __attribute__((weak, alias("__coloured_LED_init"))); +void inline __red_LED_on (void) {} +void red_LED_on (void) __attribute__((weak, alias("__red_LED_on"))); +void inline __red_LED_off(void) {} +void red_LED_off(void) __attribute__((weak, alias("__red_LED_off"))); +void inline __green_LED_on(void) {} +void green_LED_on(void) __attribute__((weak, alias("__green_LED_on"))); +void inline __green_LED_off(void) {} +void green_LED_off(void) __attribute__((weak, alias("__green_LED_off"))); +void inline __yellow_LED_on(void) {} +void yellow_LED_on(void) __attribute__((weak, alias("__yellow_LED_on"))); +void inline __yellow_LED_off(void) {} +void yellow_LED_off(void) __attribute__((weak, alias("__yellow_LED_off"))); +void inline __blue_LED_on(void) {} +void blue_LED_on(void) __attribute__((weak, alias("__blue_LED_on"))); +void inline __blue_LED_off(void) {} +void blue_LED_off(void) __attribute__((weak, alias("__blue_LED_off"))); + +/************************************************************************ + * Init Utilities * + ************************************************************************ + * Some of this code should be moved into the core functions, + * or dropped completely, + * but let's get it working (again) first... + */ + +#if defined(CONFIG_ARM_DCC) && !defined(CONFIG_BAUDRATE) +#define CONFIG_BAUDRATE 115200 +#endif +static int init_baudrate (void) +{ + char tmp[64]; /* long enough for environment variables */ + int i = getenv_r ("baudrate", tmp, sizeof (tmp)); + gd->bd->bi_baudrate = gd->baudrate = (i > 0) + ? (int) simple_strtoul (tmp, NULL, 10) + : CONFIG_BAUDRATE; + + return (0); +} + +static int display_banner (void) +{ + printf ("\n\n%s\n\n", version_string); + debug ("U-Boot code: %08lX -> %08lX BSS: -> %08lX\n", + _armboot_start, _bss_start, _bss_end); +#ifdef CONFIG_MODEM_SUPPORT + debug ("Modem Support enabled\n"); +#endif +#ifdef CONFIG_USE_IRQ + debug ("IRQ Stack: %08lx\n", IRQ_STACK_START); + debug ("FIQ Stack: %08lx\n", FIQ_STACK_START); +#endif + + return (0); +} + +/* + * WARNING: this code looks "cleaner" than the PowerPC version, but + * has the disadvantage that you either get nothing, or everything. + * On PowerPC, you might see "DRAM: " before the system hangs - which + * gives a simple yet clear indication which part of the + * initialization if failing. + */ +static int display_dram_config (void) +{ + int i; + +#ifdef DEBUG + puts ("RAM 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"); + } +#else + ulong size = 0; + + for (i=0; i<CONFIG_NR_DRAM_BANKS; i++) { + size += gd->bd->bi_dram[i].size; + } + puts("DRAM: "); + print_size(size, "\n"); +#endif + + return (0); +} + +#ifndef CONFIG_SYS_NO_FLASH +static void display_flash_config (ulong size) +{ + puts ("Flash: "); + print_size (size, "\n"); +} +#endif /* CONFIG_SYS_NO_FLASH */ + +#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C) +static int init_func_i2c (void) +{ + puts ("I2C: "); + i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); + puts ("ready\n"); + return (0); +} +#endif + +#if defined(CONFIG_CMD_PCI) || defined (CONFIG_PCI) +#include <pci.h> +static int arm_pci_init(void) +{ + pci_init(); + return 0; +} +#endif /* CONFIG_CMD_PCI || CONFIG_PCI */ + +/* + * 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); + +int print_cpuinfo (void); + +init_fnc_t *init_sequence[] = { +#if defined(CONFIG_ARCH_CPU_INIT) + arch_cpu_init, /* basic arch cpu dependent setup */ +#endif + board_init, /* basic board dependent setup */ +#if defined(CONFIG_USE_IRQ) + interrupt_init, /* set up exceptions */ +#endif + timer_init, /* initialize timer */ +#ifdef CONFIG_FSL_ESDHC + get_clocks, +#endif + env_init, /* initialize environment */ + init_baudrate, /* initialze baudrate settings */ + serial_init, /* serial communications setup */ + console_init_f, /* stage 1 init of console */ + 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 +#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C) + init_func_i2c, +#endif + dram_init, /* configure available RAM banks */ +#if defined(CONFIG_CMD_PCI) || defined (CONFIG_PCI) + arm_pci_init, +#endif + display_dram_config, + NULL, +}; + +void start_armboot (void) +{ + init_fnc_t **init_fnc_ptr; + char *s; +#if defined(CONFIG_VFD) || defined(CONFIG_LCD) + unsigned long addr; +#endif + + /* Pointer is writable since we allocated a register for it */ + gd = (gd_t*)(_armboot_start - CONFIG_SYS_MALLOC_LEN - sizeof(gd_t)); + /* compiler optimization barrier needed for GCC >= 3.4 */ + __asm__ __volatile__("": : :"memory"); + + memset ((void*)gd, 0, sizeof (gd_t)); + gd->bd = (bd_t*)((char*)gd - sizeof(bd_t)); + memset (gd->bd, 0, sizeof (bd_t)); + + gd->flags |= GD_FLG_RELOC; + + monitor_flash_len = _bss_start - _armboot_start; + + for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) { + if ((*init_fnc_ptr)() != 0) { + hang (); + } + } + + /* armboot_start is defined in the board-specific linker script */ + mem_malloc_init (_armboot_start - CONFIG_SYS_MALLOC_LEN, + CONFIG_SYS_MALLOC_LEN); + +#ifndef CONFIG_SYS_NO_FLASH + /* configure available FLASH banks */ + display_flash_config (flash_init ()); +#endif /* CONFIG_SYS_NO_FLASH */ + +#ifdef CONFIG_VFD +# ifndef PAGE_SIZE +# define PAGE_SIZE 4096 +# endif + /* + * reserve memory for VFD display (always full pages) + */ + /* bss_end is defined in the board-specific linker script */ + addr = (_bss_end + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); + vfd_setmem (addr); + gd->fb_base = addr; +#endif /* CONFIG_VFD */ + +#ifdef CONFIG_LCD + /* board init may have inited fb_base */ + if (!gd->fb_base) { +# ifndef PAGE_SIZE +# define PAGE_SIZE 4096 +# endif + /* + * reserve memory for LCD display (always full pages) + */ + /* bss_end is defined in the board-specific linker script */ + addr = (_bss_end + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); + lcd_setmem (addr); + gd->fb_base = addr; + } +#endif /* CONFIG_LCD */ + +#if defined(CONFIG_CMD_NAND) + puts ("NAND: "); + nand_init(); /* go init the NAND */ +#endif + +#if defined(CONFIG_CMD_ONENAND) + onenand_init(); +#endif + +#ifdef CONFIG_HAS_DATAFLASH + AT91F_DataflashInit(); + dataflash_print_info(); +#endif + + /* initialize environment */ + env_relocate (); + +#ifdef CONFIG_VFD + /* must do this after the framebuffer is allocated */ + drv_vfd_init(); +#endif /* CONFIG_VFD */ + +#ifdef CONFIG_SERIAL_MULTI + serial_initialize(); +#endif + + /* IP Address */ + gd->bd->bi_ip_addr = getenv_IPaddr ("ipaddr"); + + stdio_init (); /* get the devices list going. */ + + jumptable_init (); + +#if defined(CONFIG_API) + /* Initialize API */ + api_init (); +#endif + + console_init_r (); /* fully init console as a device */ + +#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 + + /* enable exceptions */ + enable_interrupts (); + + /* Perform network card initialisation if necessary */ +#ifdef CONFIG_DRIVER_TI_EMAC + /* XXX: this needs to be moved to board init */ +extern void davinci_eth_set_mac_addr (const u_int8_t *addr); + if (getenv ("ethaddr")) { + uchar enetaddr[6]; + eth_getenv_enetaddr("ethaddr", enetaddr); + davinci_eth_set_mac_addr(enetaddr); + } +#endif + +#if defined(CONFIG_DRIVER_SMC91111) || defined (CONFIG_DRIVER_LAN91C96) + /* XXX: this needs to be moved to board init */ + if (getenv ("ethaddr")) { + uchar enetaddr[6]; + eth_getenv_enetaddr("ethaddr", enetaddr); + smc_set_mac_addr(enetaddr); + } +#endif /* CONFIG_DRIVER_SMC91111 || CONFIG_DRIVER_LAN91C96 */ + + /* Initialize from environment */ + if ((s = getenv ("loadaddr")) != NULL) { + load_addr = simple_strtoul (s, NULL, 16); + } +#if defined(CONFIG_CMD_NET) + if ((s = getenv ("bootfile")) != NULL) { + copy_filename (BootFile, s, sizeof (BootFile)); + } +#endif + +#ifdef BOARD_LATE_INIT + board_late_init (); +#endif + +#ifdef CONFIG_GENERIC_MMC + puts ("MMC: "); + mmc_initialize (gd->bd); +#endif + +#ifdef CONFIG_BITBANGMII + bb_miiphy_init(); +#endif +#if defined(CONFIG_CMD_NET) +#if defined(CONFIG_NET_MULTI) + puts ("Net: "); +#endif + eth_initialize(gd->bd); +#if defined(CONFIG_RESET_PHY_R) + debug ("Reset Ethernet PHY\n"); + reset_phy(); +#endif +#endif + /* main_loop() can return to retry autoboot, if so just run it again. */ + for (;;) { + main_loop (); + } + + /* NOTREACHED - no way out of command loop except booting */ +} + +void hang (void) +{ + puts ("### ERROR ### Please RESET the board ###\n"); + for (;;); +} |