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Diffstat (limited to 'arch/m68k/lib/board.c')
| -rw-r--r-- | arch/m68k/lib/board.c | 642 |
1 files changed, 0 insertions, 642 deletions
diff --git a/arch/m68k/lib/board.c b/arch/m68k/lib/board.c deleted file mode 100644 index 9caff73..0000000 --- a/arch/m68k/lib/board.c +++ /dev/null @@ -1,642 +0,0 @@ -/* - * (C) Copyright 2003 - * Josef Baumgartner <josef.baumgartner@telex.de> - * - * (C) Copyright 2000-2002 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <watchdog.h> -#include <command.h> -#include <malloc.h> -#include <stdio_dev.h> -#include <linux/compiler.h> - -#include <asm/immap.h> - -#if defined(CONFIG_CMD_IDE) -#include <ide.h> -#endif -#if defined(CONFIG_CMD_SCSI) -#include <scsi.h> -#endif -#if defined(CONFIG_CMD_KGDB) -#include <kgdb.h> -#endif -#ifdef CONFIG_STATUS_LED -#include <status_led.h> -#endif -#include <net.h> -#include <serial.h> -#ifdef CONFIG_SYS_ALLOC_DPRAM -#include <commproc.h> -#endif -#include <version.h> - -#if defined(CONFIG_HARD_I2C) || \ - defined(CONFIG_SYS_I2C) -#include <i2c.h> -#endif - -#ifdef CONFIG_CMD_SPI -#include <spi.h> -#endif - -#ifdef CONFIG_BITBANGMII -#include <miiphy.h> -#endif - -#include <nand.h> - -DECLARE_GLOBAL_DATA_PTR; - -static char *failed = "*** failed ***\n"; - -#include <environment.h> - -extern ulong __init_end; -extern ulong __bss_end; - -#if defined(CONFIG_WATCHDOG) -# undef INIT_FUNC_WATCHDOG_INIT -# define INIT_FUNC_WATCHDOG_INIT watchdog_init, -# define WATCHDOG_DISABLE watchdog_disable - -extern int watchdog_init(void); -extern int watchdog_disable(void); -#else -# define INIT_FUNC_WATCHDOG_INIT /* undef */ -# define WATCHDOG_DISABLE /* undef */ -#endif /* CONFIG_WATCHDOG */ - -ulong monitor_flash_len; - -/************************************************************************ - * Utilities * - ************************************************************************ - */ - -/* - * 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 dependend #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); - -/************************************************************************ - * Init Utilities - ************************************************************************ - * Some of this code should be moved into the core functions, - * 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 init_func_ram (void) -{ - int board_type = 0; /* use dummy arg */ - puts ("DRAM: "); - - if ((gd->ram_size = initdram (board_type)) > 0) { - print_size (gd->ram_size, "\n"); - return (0); - } - puts (failed); - return (1); -} - -/***********************************************************************/ - -#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C) -static int init_func_i2c (void) -{ - puts ("I2C: "); -#ifdef CONFIG_SYS_I2C - i2c_init_all(); -#else - i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); -#endif - puts ("ready\n"); - return (0); -} -#endif - -#if defined(CONFIG_HARD_SPI) -static int init_func_spi (void) -{ - puts ("SPI: "); - spi_init (); - puts ("ready\n"); - return (0); -} -#endif - -/***********************************************************************/ - -/************************************************************************ - * Initialization sequence * - ************************************************************************ - */ - -init_fnc_t *init_sequence[] = { - get_clocks, - env_init, - init_baudrate, - serial_init, - console_init_f, - display_options, - checkcpu, - checkboard, -#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C) - init_func_i2c, -#endif -#if defined(CONFIG_HARD_SPI) - init_func_spi, -#endif - init_func_ram, -#if defined(CONFIG_SYS_DRAM_TEST) - testdram, -#endif /* CONFIG_SYS_DRAM_TEST */ - INIT_FUNC_WATCHDOG_INIT - NULL, /* Terminate this list */ -}; - - -/************************************************************************ - * - * This is the first part of the initialization sequence that is - * implemented in C, but still running from ROM. - * - * The main purpose is to provide a (serial) console interface as - * soon as possible (so we can see any error messages), and to - * initialize the RAM so that we can relocate the monitor code to - * RAM. - * - * Be aware of the restrictions: global data is read-only, BSS is not - * initialized, and stack space is limited to a few kB. - * - ************************************************************************ - */ - -void -board_init_f (ulong bootflag) -{ - bd_t *bd; - ulong len, addr, addr_sp; - ulong *paddr; - gd_t *id; - init_fnc_t **init_fnc_ptr; -#ifdef CONFIG_PRAM - ulong reg; -#endif - - /* Pointer is writable since we allocated a register for it */ - gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET); - /* compiler optimization barrier needed for GCC >= 3.4 */ - __asm__ __volatile__("": : :"memory"); - - /* Clear initial global data */ - memset ((void *) gd, 0, sizeof (gd_t)); - - for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) { - if ((*init_fnc_ptr)() != 0) { - hang (); - } - } - - /* - * Now that we have DRAM mapped and working, we can - * relocate the code and continue running from DRAM. - * - * Reserve memory at end of RAM for (top down in that order): - * - protected RAM - * - LCD framebuffer - * - monitor code - * - board info struct - */ - len = (ulong)&__bss_end - CONFIG_SYS_MONITOR_BASE; - - addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size; - -#ifdef CONFIG_LOGBUFFER - /* reserve kernel log buffer */ - addr -= (LOGBUFF_RESERVE); - debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr); -#endif - -#ifdef CONFIG_PRAM - /* - * reserve protected RAM - */ - reg = getenv_ulong("pram", 10, CONFIG_PRAM); - addr -= (reg << 10); /* size is in kB */ - debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr); -#endif /* CONFIG_PRAM */ - - /* round down to next 4 kB limit */ - addr &= ~(4096 - 1); - debug ("Top of RAM usable for U-Boot at: %08lx\n", addr); - -#ifdef CONFIG_LCD -#ifdef CONFIG_FB_ADDR - gd->fb_base = CONFIG_FB_ADDR; -#else - /* reserve memory for LCD display (always full pages) */ - addr = lcd_setmem (addr); - gd->fb_base = addr; -#endif /* CONFIG_FB_ADDR */ -#endif /* CONFIG_LCD */ - - /* - * reserve memory for U-Boot code, data & bss - * round down to next 4 kB limit - */ - addr -= len; - addr &= ~(4096 - 1); - - debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr); - - /* - * 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); - bd = (bd_t *) addr_sp; - gd->bd = bd; - debug ("Reserving %zu Bytes for Board Info at: %08lx\n", - sizeof (bd_t), addr_sp); - addr_sp -= sizeof (gd_t); - id = (gd_t *) addr_sp; - debug ("Reserving %zu Bytes for Global Data at: %08lx\n", - sizeof (gd_t), addr_sp); - - /* Reserve memory for boot params. */ - addr_sp -= CONFIG_SYS_BOOTPARAMS_LEN; - bd->bi_boot_params = addr_sp; - debug ("Reserving %dk for boot parameters at: %08lx\n", - CONFIG_SYS_BOOTPARAMS_LEN >> 10, addr_sp); - - /* - * Finally, we set up a new (bigger) stack. - * - * Leave some safety gap for SP, force alignment on 16 byte boundary - * Clear initial stack frame - */ - addr_sp -= 16; - addr_sp &= ~0xF; - - paddr = (ulong *)addr_sp; - *paddr-- = 0; - *paddr-- = 0; - addr_sp = (ulong)paddr; - - debug ("Stack Pointer at: %08lx\n", addr_sp); - - /* - * Save local variables to board info struct - */ - bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of DRAM memory */ - bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */ -#ifdef CONFIG_SYS_INIT_RAM_ADDR - bd->bi_sramstart = CONFIG_SYS_INIT_RAM_ADDR; /* start of SRAM memory */ - bd->bi_sramsize = CONFIG_SYS_INIT_RAM_SIZE; /* size of SRAM memory */ -#endif - bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */ - - bd->bi_bootflags = bootflag; /* boot / reboot flag (for LynxOS) */ - - WATCHDOG_RESET (); - bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */ - bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */ -#ifdef CONFIG_PCI - bd->bi_pcifreq = gd->pci_clk; /* PCI Freq in Hz */ -#endif -#ifdef CONFIG_EXTRA_CLOCK - bd->bi_inpfreq = gd->arch.inp_clk; /* input Freq in Hz */ - bd->bi_vcofreq = gd->arch.vco_clk; /* vco Freq in Hz */ - bd->bi_flbfreq = gd->arch.flb_clk; /* flexbus Freq in Hz */ -#endif - -#ifdef CONFIG_SYS_EXTBDINFO - strncpy (bd->bi_s_version, "1.2", sizeof (bd->bi_s_version)); - strncpy (bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version)); -#endif - - WATCHDOG_RESET (); - -#ifdef CONFIG_POST - post_bootmode_init(); - post_run (NULL, POST_ROM | post_bootmode_get(0)); -#endif - - WATCHDOG_RESET(); - - memcpy (id, (void *)gd, sizeof (gd_t)); - - debug ("Start relocate of code from %08x to %08lx\n", CONFIG_SYS_MONITOR_BASE, addr); - relocate_code (addr_sp, id, addr); - - /* NOTREACHED - jump_to_ram() does not return */ -} - -/************************************************************************ - * - * 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) -{ - char *s __maybe_unused; - bd_t *bd; - -#ifndef CONFIG_ENV_IS_NOWHERE - extern char * env_name_spec; -#endif -#ifndef CONFIG_SYS_NO_FLASH - ulong flash_size; -#endif - gd = id; /* initialize RAM version of global data */ - bd = gd->bd; - - gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ - - WATCHDOG_RESET (); - - gd->reloc_off = dest_addr - CONFIG_SYS_MONITOR_BASE; - - serial_initialize(); - - debug("Now running in RAM - U-Boot at: %08lx\n", dest_addr); - - monitor_flash_len = (ulong)&__init_end - dest_addr; - -#if defined(CONFIG_NEEDS_MANUAL_RELOC) - /* - * We have to relocate the command table manually - */ - fixup_cmdtable(ll_entry_start(cmd_tbl_t, cmd), - ll_entry_count(cmd_tbl_t, cmd)); -#endif /* defined(CONFIG_NEEDS_MANUAL_RELOC) */ - - /* there are some other pointer constants we must deal with */ -#ifndef CONFIG_ENV_IS_NOWHERE - env_name_spec += gd->reloc_off; -#endif - - WATCHDOG_RESET (); - -#ifdef CONFIG_LOGBUFFER - logbuff_init_ptrs (); -#endif -#ifdef CONFIG_POST - post_output_backlog (); - post_reloc (); -#endif - WATCHDOG_RESET(); - -#if 0 - /* instruction cache enabled in cpu_init_f() for faster relocation */ - icache_enable (); /* it's time to enable the instruction cache */ -#endif - - /* - * Setup trap handlers - */ - trap_init (CONFIG_SYS_SDRAM_BASE); - - /* The Malloc area is immediately below the monitor copy in DRAM */ - mem_malloc_init (CONFIG_SYS_MONITOR_BASE + gd->reloc_off - - TOTAL_MALLOC_LEN, TOTAL_MALLOC_LEN); - -#if !defined(CONFIG_SYS_NO_FLASH) - puts ("Flash: "); - - if ((flash_size = flash_init ()) > 0) { -# ifdef CONFIG_SYS_FLASH_CHECKSUM - print_size (flash_size, ""); - /* - * Compute and print flash CRC if flashchecksum is set to 'y' - * - * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX - */ - if (getenv_yesno("flashchecksum") == 1) { - printf (" CRC: %08X", - crc32 (0, - (const unsigned char *) CONFIG_SYS_FLASH_BASE, - flash_size) - ); - } - putc ('\n'); -# else /* !CONFIG_SYS_FLASH_CHECKSUM */ - print_size (flash_size, "\n"); -# endif /* CONFIG_SYS_FLASH_CHECKSUM */ - } else { - puts (failed); - hang (); - } - - bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; /* update start of FLASH memory */ - bd->bi_flashsize = flash_size; /* size of FLASH memory (final value) */ - bd->bi_flashoffset = 0; -#else /* CONFIG_SYS_NO_FLASH */ - bd->bi_flashsize = 0; - bd->bi_flashstart = 0; - bd->bi_flashoffset = 0; -#endif /* !CONFIG_SYS_NO_FLASH */ - - WATCHDOG_RESET (); - - /* initialize higher level parts of CPU like time base and timers */ - cpu_init_r (); - - WATCHDOG_RESET (); - -#ifdef CONFIG_SPI -# if !defined(CONFIG_ENV_IS_IN_EEPROM) - spi_init_f (); -# endif - spi_init_r (); -#endif - -#if defined(CONFIG_SYS_I2C) - /* Adjust I2C subsystem pointers after relocation */ - i2c_reloc_fixup(); -#endif - - /* relocate environment function pointers etc. */ - env_relocate (); - - WATCHDOG_RESET (); - -#if defined(CONFIG_PCI) - /* - * Do pci configuration - */ - pci_init (); -#endif - - /** leave this here (after malloc(), environment and PCI are working) **/ - /* Initialize stdio devices */ - stdio_init (); - - /* Initialize the jump table for applications */ - jumptable_init (); - - /* Initialize the console (after the relocation and devices init) */ - console_init_r (); - -#if defined(CONFIG_MISC_INIT_R) - /* miscellaneous platform dependent initialisations */ - misc_init_r (); -#endif - -#if defined(CONFIG_CMD_KGDB) - WATCHDOG_RESET (); - puts ("KGDB: "); - kgdb_init (); -#endif - - debug ("U-Boot relocated to %08lx\n", dest_addr); - - /* - * Enable Interrupts - */ - interrupt_init (); - - /* Must happen after interrupts are initialized since - * an irq handler gets installed - */ - timer_init(); - -#ifdef CONFIG_STATUS_LED - status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING); -#endif - - udelay (20); - - /* Insert function pointers now that we have relocated the code */ - - /* Initialize from environment */ - load_addr = getenv_ulong("loadaddr", 16, load_addr); - - WATCHDOG_RESET (); - -#if defined(CONFIG_CMD_DOC) - WATCHDOG_RESET (); - puts ("DOC: "); - doc_init (); -#endif - -#if defined(CONFIG_CMD_NAND) - WATCHDOG_RESET (); - puts ("NAND: "); - nand_init(); /* go init the NAND */ -#endif - -#ifdef CONFIG_BITBANGMII - bb_miiphy_init(); -#endif -#if defined(CONFIG_CMD_NET) - WATCHDOG_RESET(); -#if defined(FEC_ENET) - eth_init(bd); -#endif - puts ("Net: "); - eth_initialize (bd); -#endif - -#ifdef CONFIG_POST - post_run (NULL, POST_RAM | post_bootmode_get(0)); -#endif - -#if defined(CONFIG_CMD_PCMCIA) \ - && !defined(CONFIG_CMD_IDE) - WATCHDOG_RESET (); - puts ("PCMCIA:"); - pcmcia_init (); -#endif - -#if defined(CONFIG_CMD_IDE) - WATCHDOG_RESET (); - puts ("IDE: "); - ide_init (); -#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 - -#if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER) - /* - * Export available size of memory for Linux, - * taking into account the protected RAM at top of memory - */ - { - ulong pram = 0; - char memsz[32]; - -#ifdef CONFIG_PRAM - pram = getenv_ulong("pram", 10, CONFIG_PRAM); -#endif -#ifdef CONFIG_LOGBUFFER - /* Also take the logbuffer into account (pram is in kB) */ - pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024; -#endif - sprintf (memsz, "%ldk", (bd->bi_memsize / 1024) - pram); - setenv ("mem", memsz); - } -#endif - -#ifdef CONFIG_WATCHDOG - /* disable watchdog if environment is set */ - if ((s = getenv ("watchdog")) != NULL) { - if (strncmp (s, "off", 3) == 0) { - WATCHDOG_DISABLE (); - } - } -#endif /* CONFIG_WATCHDOG*/ - - - /* Initialization complete - start the monitor */ - - /* main_loop() can return to retry autoboot, if so just run it again. */ - for (;;) { - WATCHDOG_RESET (); - main_loop (); - } - - /* NOTREACHED - no way out of command loop except booting */ -} |