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Diffstat (limited to 'common/board_f.c')
| -rw-r--r-- | common/board_f.c | 1015 |
1 files changed, 1015 insertions, 0 deletions
diff --git a/common/board_f.c b/common/board_f.c new file mode 100644 index 000000000..29b49c3ab --- /dev/null +++ b/common/board_f.c @@ -0,0 +1,1015 @@ +/* + * 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 + */ + +#include <common.h> +#include <linux/compiler.h> +#include <version.h> +#include <environment.h> +#include <fdtdec.h> +#if defined(CONFIG_CMD_IDE) +#include <ide.h> +#endif +#include <i2c.h> +#include <initcall.h> +#include <logbuff.h> + +/* TODO: Can we move these into arch/ headers? */ +#ifdef CONFIG_8xx +#include <mpc8xx.h> +#endif +#ifdef CONFIG_5xx +#include <mpc5xx.h> +#endif +#ifdef CONFIG_MPC5xxx +#include <mpc5xxx.h> +#endif + +#include <post.h> +#include <spi.h> +#include <watchdog.h> +#include <asm/io.h> +#ifdef CONFIG_MP +#include <asm/mp.h> +#endif +#include <asm/sections.h> +#ifdef CONFIG_X86 +#include <asm/init_helpers.h> +#include <asm/relocate.h> +#endif +#include <linux/compiler.h> + +/* + * Pointer to initial global data area + * + * Here we initialize it if needed. + */ +#ifdef XTRN_DECLARE_GLOBAL_DATA_PTR +#undef XTRN_DECLARE_GLOBAL_DATA_PTR +#define XTRN_DECLARE_GLOBAL_DATA_PTR /* empty = allocate here */ +DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_GD_ADDR); +#else +DECLARE_GLOBAL_DATA_PTR; +#endif + +/* + * sjg: IMO this code should be + * refactored to a single function, something like: + * + * void led_set_state(enum led_colour_t colour, int on); + */ +/************************************************************************ + * Coloured LED functionality + ************************************************************************ + * May be supplied by boards if desired + */ +inline void __coloured_LED_init(void) {} +void coloured_LED_init(void) + __attribute__((weak, alias("__coloured_LED_init"))); +inline void __red_led_on(void) {} +void red_led_on(void) __attribute__((weak, alias("__red_led_on"))); +inline void __red_led_off(void) {} +void red_led_off(void) __attribute__((weak, alias("__red_led_off"))); +inline void __green_led_on(void) {} +void green_led_on(void) __attribute__((weak, alias("__green_led_on"))); +inline void __green_led_off(void) {} +void green_led_off(void) __attribute__((weak, alias("__green_led_off"))); +inline void __yellow_led_on(void) {} +void yellow_led_on(void) __attribute__((weak, alias("__yellow_led_on"))); +inline void __yellow_led_off(void) {} +void yellow_led_off(void) __attribute__((weak, alias("__yellow_led_off"))); +inline void __blue_led_on(void) {} +void blue_led_on(void) __attribute__((weak, alias("__blue_led_on"))); +inline void __blue_led_off(void) {} +void blue_led_off(void) __attribute__((weak, alias("__blue_led_off"))); + +/* + * Why is gd allocated a register? Prior to reloc it might be better to + * just pass it around to each function in this file? + * + * After reloc one could argue that it is hardly used and doesn't need + * to be in a register. Or if it is it should perhaps hold pointers to all + * global data for all modules, so that post-reloc we can avoid the massive + * literal pool we get on ARM. Or perhaps just encourage each module to use + * a structure... + */ + +/* + * Could the CONFIG_SPL_BUILD infection become a flag in gd? + */ + +#if defined(CONFIG_WATCHDOG) +static int init_func_watchdog_init(void) +{ + puts(" Watchdog enabled\n"); + WATCHDOG_RESET(); + + return 0; +} + +int init_func_watchdog_reset(void) +{ + WATCHDOG_RESET(); + + return 0; +} +#endif /* CONFIG_WATCHDOG */ + +void __board_add_ram_info(int use_default) +{ + /* please define platform specific board_add_ram_info() */ +} + +void board_add_ram_info(int) + __attribute__ ((weak, alias("__board_add_ram_info"))); + +static int init_baud_rate(void) +{ + gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE); + return 0; +} + +static int display_text_info(void) +{ + ulong bss_start, bss_end; + +#ifdef CONFIG_SYS_SYM_OFFSETS + bss_start = _bss_start_ofs + _TEXT_BASE; + bss_end = _bss_end_ofs + _TEXT_BASE; +#else + bss_start = (ulong)&__bss_start; + bss_end = (ulong)&__bss_end; +#endif + debug("U-Boot code: %08X -> %08lX BSS: -> %08lX\n", + CONFIG_SYS_TEXT_BASE, 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; +} + +static int announce_dram_init(void) +{ + puts("DRAM: "); + return 0; +} + +#ifdef CONFIG_PPC +static int init_func_ram(void) +{ +#ifdef CONFIG_BOARD_TYPES + int board_type = gd->board_type; +#else + int board_type = 0; /* use dummy arg */ +#endif + + gd->ram_size = initdram(board_type); + + if (gd->ram_size > 0) + return 0; + + puts("*** failed ***\n"); + return 1; +} +#endif + +static int show_dram_config(void) +{ + ulong size; + +#ifdef CONFIG_NR_DRAM_BANKS + int i; + + debug("\nRAM Configuration:\n"); + for (i = size = 0; i < CONFIG_NR_DRAM_BANKS; i++) { + size += gd->bd->bi_dram[i].size; + debug("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start); +#ifdef DEBUG + print_size(gd->bd->bi_dram[i].size, "\n"); +#endif + } + debug("\nDRAM: "); +#else + size = gd->ram_size; +#endif + + print_size(size, ""); + board_add_ram_info(0); + putc('\n'); + + return 0; +} + +ulong get_effective_memsize(void) +{ +#ifndef CONFIG_VERY_BIG_RAM + return gd->ram_size; +#else + /* limit stack to what we can reasonable map */ + return ((gd->ram_size > CONFIG_MAX_MEM_MAPPED) ? + CONFIG_MAX_MEM_MAPPED : gd->ram_size); +#endif +} + +void __dram_init_banksize(void) +{ +#if defined(CONFIG_NR_DRAM_BANKS) && defined(CONFIG_SYS_SDRAM_BASE) + gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; + gd->bd->bi_dram[0].size = get_effective_memsize(); +#endif +} + +void dram_init_banksize(void) + __attribute__((weak, alias("__dram_init_banksize"))); + +#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_HARD_SPI) +static int init_func_spi(void) +{ + puts("SPI: "); + spi_init(); + puts("ready\n"); + return 0; +} +#endif + +__maybe_unused +static int zero_global_data(void) +{ + memset((void *)gd, '\0', sizeof(gd_t)); + + return 0; +} + +static int setup_mon_len(void) +{ +#ifdef CONFIG_SYS_SYM_OFFSETS + gd->mon_len = _bss_end_ofs; +#else + /* TODO: use (ulong)&__bss_end - (ulong)&__text_start; ? */ + gd->mon_len = (ulong)&__bss_end - CONFIG_SYS_MONITOR_BASE; +#endif + return 0; +} + +__weak int arch_cpu_init(void) +{ + return 0; +} + +static int setup_fdt(void) +{ +#ifdef 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 */ +# ifdef CONFIG_SYS_SYM_OFFSETS + gd->fdt_blob = (void *)(_end_ofs + CONFIG_SYS_TEXT_BASE); +# else + gd->fdt_blob = (ulong *)&_end; +# endif +#endif + /* Allow the early environment to override the fdt address */ + gd->fdt_blob = (void *)getenv_ulong("fdtcontroladdr", 16, + (uintptr_t)gd->fdt_blob); + return 0; +} + +/* Get the top of usable RAM */ +__weak ulong board_get_usable_ram_top(ulong total_size) +{ + return gd->ram_top; +} + +static int setup_dest_addr(void) +{ + debug("Monitor len: %08lX\n", gd->mon_len); + /* + * Ram is setup, size stored in gd !! + */ + debug("Ram size: %08lX\n", (ulong)gd->ram_size); +#if defined(CONFIG_SYS_MEM_TOP_HIDE) + /* + * Subtract specified amount of memory to hide so that it won't + * get "touched" at all by U-Boot. By fixing up gd->ram_size + * the Linux kernel should now get passed the now "corrected" + * memory size and won't touch it either. This should work + * for arch/ppc and arch/powerpc. Only Linux board ports in + * arch/powerpc with bootwrapper support, that recalculate the + * memory size from the SDRAM controller setup will have to + * get fixed. + */ + gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE; +#endif +#ifdef CONFIG_SYS_SDRAM_BASE + gd->ram_top = CONFIG_SYS_SDRAM_BASE; +#endif + gd->ram_top += get_effective_memsize(); + gd->ram_top = board_get_usable_ram_top(gd->mon_len); + gd->dest_addr = gd->ram_top; + debug("Ram top: %08lX\n", (ulong)gd->ram_top); +#if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500)) + /* + * We need to make sure the location we intend to put secondary core + * boot code is reserved and not used by any part of u-boot + */ + if (gd->dest_addr > determine_mp_bootpg(NULL)) { + gd->dest_addr = determine_mp_bootpg(NULL); + debug("Reserving MP boot page to %08lx\n", gd->dest_addr); + } +#endif + gd->dest_addr_sp = gd->dest_addr; + return 0; +} + +#if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR) +static int reserve_logbuffer(void) +{ + /* reserve kernel log buffer */ + gd->dest_addr -= LOGBUFF_RESERVE; + debug("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, + gd->dest_addr); + return 0; +} +#endif + +#ifdef CONFIG_PRAM +/* reserve protected RAM */ +static int reserve_pram(void) +{ + ulong reg; + + reg = getenv_ulong("pram", 10, CONFIG_PRAM); + gd->dest_addr -= (reg << 10); /* size is in kB */ + debug("Reserving %ldk for protected RAM at %08lx\n", reg, + gd->dest_addr); + return 0; +} +#endif /* CONFIG_PRAM */ + +/* Round memory pointer down to next 4 kB limit */ +static int reserve_round_4k(void) +{ + gd->dest_addr &= ~(4096 - 1); + return 0; +} + +#if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \ + defined(CONFIG_ARM) +static int reserve_mmu(void) +{ + /* reserve TLB table */ + gd->arch.tlb_size = 4096 * 4; + gd->dest_addr -= gd->arch.tlb_size; + + /* round down to next 64 kB limit */ + gd->dest_addr &= ~(0x10000 - 1); + + gd->arch.tlb_addr = gd->dest_addr; + debug("TLB table from %08lx to %08lx\n", gd->arch.tlb_addr, + gd->arch.tlb_addr + gd->arch.tlb_size); + return 0; +} +#endif + +#ifdef CONFIG_LCD +static int reserve_lcd(void) +{ +#ifdef CONFIG_FB_ADDR + gd->fb_base = CONFIG_FB_ADDR; +#else + /* reserve memory for LCD display (always full pages) */ + gd->dest_addr = lcd_setmem(gd->dest_addr); + gd->fb_base = gd->dest_addr; +#endif /* CONFIG_FB_ADDR */ + return 0; +} +#endif /* CONFIG_LCD */ + +#if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) \ + && !defined(CONFIG_ARM) && !defined(CONFIG_X86) +static int reserve_video(void) +{ + /* reserve memory for video display (always full pages) */ + gd->dest_addr = video_setmem(gd->dest_addr); + gd->fb_base = gd->dest_addr; + + return 0; +} +#endif + +static int reserve_uboot(void) +{ + /* + * reserve memory for U-Boot code, data & bss + * round down to next 4 kB limit + */ + gd->dest_addr -= gd->mon_len; + gd->dest_addr &= ~(4096 - 1); +#ifdef CONFIG_E500 + /* round down to next 64 kB limit so that IVPR stays aligned */ + gd->dest_addr &= ~(65536 - 1); +#endif + + debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10, + gd->dest_addr); + return 0; +} + +#ifndef CONFIG_SPL_BUILD +/* reserve memory for malloc() area */ +static int reserve_malloc(void) +{ + gd->dest_addr_sp = gd->dest_addr - TOTAL_MALLOC_LEN; + debug("Reserving %dk for malloc() at: %08lx\n", + TOTAL_MALLOC_LEN >> 10, gd->dest_addr_sp); + return 0; +} + +/* (permanently) allocate a Board Info struct */ +static int reserve_board(void) +{ + gd->dest_addr_sp -= sizeof(bd_t); + gd->bd = (bd_t *)gd->dest_addr_sp; + memset(gd->bd, '\0', sizeof(bd_t)); + debug("Reserving %zu Bytes for Board Info at: %08lx\n", + sizeof(bd_t), gd->dest_addr_sp); + return 0; +} +#endif + +static int setup_machine(void) +{ +#ifdef CONFIG_MACH_TYPE + gd->bd->bi_arch_number = CONFIG_MACH_TYPE; /* board id for Linux */ +#endif + return 0; +} + +static int reserve_global_data(void) +{ + gd->dest_addr_sp -= sizeof(gd_t); + gd->new_gd = (gd_t *)gd->dest_addr_sp; + debug("Reserving %zu Bytes for Global Data at: %08lx\n", + sizeof(gd_t), gd->dest_addr_sp); + return 0; +} + +static int reserve_fdt(void) +{ + /* + * If the device tree is sitting immediate above our image then we + * must relocate it. If it is embedded in the data section, then it + * will be relocated with other data. + */ + if (gd->fdt_blob) { + gd->fdt_size = ALIGN(fdt_totalsize(gd->fdt_blob) + 0x1000, 32); + + gd->dest_addr_sp -= gd->fdt_size; + gd->new_fdt = (void *)gd->dest_addr_sp; + debug("Reserving %lu Bytes for FDT at: %p\n", + gd->fdt_size, gd->new_fdt); + } + + return 0; +} + +static int reserve_stacks(void) +{ +#ifdef CONFIG_SPL_BUILD +# ifdef CONFIG_ARM + gd->dest_addr_sp -= 128; /* leave 32 words for abort-stack */ + gd->irq_sp = gd->dest_addr_sp; +# endif +#else +# ifdef CONFIG_PPC + ulong *s; +# endif + + /* setup stack pointer for exceptions */ + gd->dest_addr_sp -= 16; + gd->dest_addr_sp &= ~0xf; + gd->irq_sp = gd->dest_addr_sp; + + /* + * Handle architecture-specific things here + * TODO(sjg@chromium.org): Perhaps create arch_reserve_stack() + * to handle this and put in arch/xxx/lib/stack.c + */ +# ifdef CONFIG_ARM +# ifdef CONFIG_USE_IRQ + gd->dest_addr_sp -= (CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ); + debug("Reserving %zu Bytes for IRQ stack at: %08lx\n", + CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ, gd->dest_addr_sp); + + /* 8-byte alignment for ARM ABI compliance */ + gd->dest_addr_sp &= ~0x07; +# endif + /* leave 3 words for abort-stack, plus 1 for alignment */ + gd->dest_addr_sp -= 16; +# elif defined(CONFIG_PPC) + /* Clear initial stack frame */ + s = (ulong *) gd->dest_addr_sp; + *s = 0; /* Terminate back chain */ + *++s = 0; /* NULL return address */ +# endif /* Architecture specific code */ + + return 0; +#endif +} + +static int display_new_sp(void) +{ + debug("New Stack Pointer is: %08lx\n", gd->dest_addr_sp); + + return 0; +} + +#ifdef CONFIG_PPC +static int setup_board_part1(void) +{ + bd_t *bd = gd->bd; + + /* + * Save local variables to board info struct + */ + + bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of memory */ + bd->bi_memsize = gd->ram_size; /* size in bytes */ + +#ifdef CONFIG_SYS_SRAM_BASE + bd->bi_sramstart = CONFIG_SYS_SRAM_BASE; /* start of SRAM */ + bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; /* size of SRAM */ +#endif + +#if defined(CONFIG_8xx) || defined(CONFIG_8260) || defined(CONFIG_5xx) || \ + defined(CONFIG_E500) || defined(CONFIG_MPC86xx) + bd->bi_immr_base = CONFIG_SYS_IMMR; /* base of IMMR register */ +#endif +#if defined(CONFIG_MPC5xxx) + bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */ +#endif +#if defined(CONFIG_MPC83xx) + bd->bi_immrbar = CONFIG_SYS_IMMR; +#endif +#if defined(CONFIG_MPC8220) + bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */ + bd->bi_inpfreq = gd->arch.inp_clk; + bd->bi_pcifreq = gd->pci_clk; + bd->bi_vcofreq = gd->arch.vco_clk; + bd->bi_pevfreq = gd->arch.pev_clk; + bd->bi_flbfreq = gd->arch.flb_clk; + + /* store bootparam to sram (backward compatible), here? */ + { + u32 *sram = (u32 *) CONFIG_SYS_SRAM_BASE; + + *sram++ = gd->ram_size; + *sram++ = gd->bus_clk; + *sram++ = gd->arch.inp_clk; + *sram++ = gd->cpu_clk; + *sram++ = gd->arch.vco_clk; + *sram++ = gd->arch.flb_clk; + *sram++ = 0xb8c3ba11; /* boot signature */ + } +#endif + + return 0; +} + +static int setup_board_part2(void) +{ + bd_t *bd = gd->bd; + + bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */ + bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */ +#if defined(CONFIG_CPM2) + bd->bi_cpmfreq = gd->arch.cpm_clk; + bd->bi_brgfreq = gd->arch.brg_clk; + bd->bi_sccfreq = gd->arch.scc_clk; + bd->bi_vco = gd->arch.vco_out; +#endif /* CONFIG_CPM2 */ +#if defined(CONFIG_MPC512X) + bd->bi_ipsfreq = gd->arch.ips_clk; +#endif /* CONFIG_MPC512X */ +#if defined(CONFIG_MPC5xxx) + bd->bi_ipbfreq = gd->arch.ipb_clk; + bd->bi_pcifreq = gd->pci_clk; +#endif /* CONFIG_MPC5xxx */ + + return 0; +} +#endif + +#ifdef CONFIG_SYS_EXTBDINFO +static int setup_board_extra(void) +{ + bd_t *bd = gd->bd; + + strncpy((char *) bd->bi_s_version, "1.2", sizeof(bd->bi_s_version)); + strncpy((char *) bd->bi_r_version, U_BOOT_VERSION, + sizeof(bd->bi_r_version)); + + bd->bi_procfreq = gd->cpu_clk; /* Processor Speed, In Hz */ + bd->bi_plb_busfreq = gd->bus_clk; +#if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \ + defined(CONFIG_440EP) || defined(CONFIG_440GR) || \ + defined(CONFIG_440EPX) || defined(CONFIG_440GRX) + bd->bi_pci_busfreq = get_PCI_freq(); + bd->bi_opbfreq = get_OPB_freq(); +#elif defined(CONFIG_XILINX_405) + bd->bi_pci_busfreq = get_PCI_freq(); +#endif + + return 0; +} +#endif + +#ifdef CONFIG_POST +static int init_post(void) +{ + post_bootmode_init(); + post_run(NULL, POST_ROM | post_bootmode_get(0)); + + return 0; +} +#endif + +static int setup_baud_rate(void) +{ + /* Ick, can we get rid of this line? */ + gd->bd->bi_baudrate = gd->baudrate; + + return 0; +} + +static int setup_dram_config(void) +{ + /* Ram is board specific, so move it to board code ... */ + dram_init_banksize(); + + return 0; +} + +static int reloc_fdt(void) +{ + if (gd->new_fdt) { + memcpy(gd->new_fdt, gd->fdt_blob, gd->fdt_size); + gd->fdt_blob = gd->new_fdt; + } + + return 0; +} + +static int setup_reloc(void) +{ + gd->relocaddr = gd->dest_addr; + gd->start_addr_sp = gd->dest_addr_sp; + gd->reloc_off = gd->dest_addr - CONFIG_SYS_TEXT_BASE; + memcpy(gd->new_gd, (char *)gd, sizeof(gd_t)); + + debug("Relocation Offset is: %08lx\n", gd->reloc_off); + debug("Relocating to %08lx, new gd at %p, sp at %08lx\n", + gd->dest_addr, gd->new_gd, gd->dest_addr_sp); + + return 0; +} + +/* ARM calls relocate_code from its crt0.S */ +#if !defined(CONFIG_ARM) + +static int jump_to_copy(void) +{ + /* + * x86 is special, but in a nice way. It uses a trampoline which + * enables the dcache if possible. + * + * For now, other archs use relocate_code(), which is implemented + * similarly for all archs. When we do generic relocation, hopefully + * we can make all archs enable the dcache prior to relocation. + */ +#ifdef CONFIG_X86 + /* + * SDRAM and console are now initialised. The final stack can now + * be setup in SDRAM. Code execution will continue in Flash, but + * with the stack in SDRAM and Global Data in temporary memory + * (CPU cache) + */ + board_init_f_r_trampoline(gd->start_addr_sp); +#else + relocate_code(gd->dest_addr_sp, gd->new_gd, gd->dest_addr); +#endif + + return 0; +} +#endif + +/* Record the board_init_f() bootstage (after arch_cpu_init()) */ +static int mark_bootstage(void) +{ + bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_F, "board_init_f"); + + return 0; +} + +static init_fnc_t init_sequence_f[] = { +#if !defined(CONFIG_CPM2) && !defined(CONFIG_MPC512X) && \ + !defined(CONFIG_MPC83xx) && !defined(CONFIG_MPC85xx) && \ + !defined(CONFIG_MPC86xx) + zero_global_data, +#endif + setup_fdt, + setup_mon_len, +#if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) + /* TODO: can this go into arch_cpu_init()? */ + probecpu, +#endif + arch_cpu_init, /* basic arch cpu dependent setup */ +#ifdef CONFIG_X86 + cpu_init_f, /* TODO(sjg@chromium.org): remove */ +# ifdef CONFIG_OF_CONTROL + find_fdt, /* TODO(sjg@chromium.org): remove */ +# endif +#endif + mark_bootstage, +#ifdef CONFIG_OF_CONTROL + fdtdec_check_fdt, +#endif +#if defined(CONFIG_BOARD_EARLY_INIT_F) + board_early_init_f, +#endif + /* TODO: can any of this go into arch_cpu_init()? */ +#if defined(CONFIG_PPC) && !defined(CONFIG_8xx_CPUCLK_DEFAULT) + get_clocks, /* get CPU and bus clocks (etc.) */ +#if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \ + && !defined(CONFIG_TQM885D) + adjust_sdram_tbs_8xx, +#endif + /* TODO: can we rename this to timer_init()? */ + init_timebase, +#endif +#if defined(CONFIG_BOARD_EARLY_INIT_F) + board_early_init_f, +#endif +#ifdef CONFIG_ARM + timer_init, /* initialize timer */ +#endif +#ifdef CONFIG_BOARD_POSTCLK_INIT + board_postclk_init, +#endif +#ifdef CONFIG_FSL_ESDHC + get_clocks, +#endif +#ifdef CONFIG_SYS_ALLOC_DPRAM +#if !defined(CONFIG_CPM2) + dpram_init, +#endif +#endif +#if defined(CONFIG_BOARD_POSTCLK_INIT) + board_postclk_init, +#endif + env_init, /* initialize environment */ +#if defined(CONFIG_8xx_CPUCLK_DEFAULT) + /* get CPU and bus clocks according to the environment variable */ + get_clocks_866, + /* adjust sdram refresh rate according to the new clock */ + sdram_adjust_866, + init_timebase, +#endif + init_baud_rate, /* initialze baudrate settings */ + serial_init, /* serial communications setup */ + console_init_f, /* stage 1 init of console */ +#if defined(CONFIG_X86) && defined(CONFIG_OF_CONTROL) + prepare_fdt, /* TODO(sjg@chromium.org): remove */ +#endif + display_options, /* say that we are here */ + display_text_info, /* show debugging info if required */ +#if defined(CONFIG_8260) + prt_8260_rsr, + prt_8260_clks, +#endif /* CONFIG_8260 */ +#if defined(CONFIG_MPC83xx) + prt_83xx_rsr, +#endif +#ifdef CONFIG_PPC + checkcpu, +#endif +#if defined(CONFIG_DISPLAY_CPUINFO) + print_cpuinfo, /* display cpu info (and speed) */ +#endif +#if defined(CONFIG_MPC5xxx) + prt_mpc5xxx_clks, +#endif /* CONFIG_MPC5xxx */ +#if defined(CONFIG_MPC8220) + prt_mpc8220_clks, +#endif +#if defined(CONFIG_DISPLAY_BOARDINFO) + checkboard, /* display board info */ +#endif + INIT_FUNC_WATCHDOG_INIT +#if defined(CONFIG_MISC_INIT_F) + misc_init_f, +#endif + INIT_FUNC_WATCHDOG_RESET +#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C) + init_func_i2c, +#endif +#if defined(CONFIG_HARD_SPI) + init_func_spi, +#endif +#ifdef CONFIG_X86 + dram_init_f, /* configure available RAM banks */ + /* x86 would prefer that this happens after relocation */ + dram_init, +#endif + announce_dram_init, + /* TODO: unify all these dram functions? */ +#ifdef CONFIG_ARM + dram_init, /* configure available RAM banks */ +#endif +#ifdef CONFIG_PPC + init_func_ram, +#endif +#ifdef CONFIG_POST + post_init_f, +#endif + INIT_FUNC_WATCHDOG_RESET +#if defined(CONFIG_SYS_DRAM_TEST) + testdram, +#endif /* CONFIG_SYS_DRAM_TEST */ + INIT_FUNC_WATCHDOG_RESET + +#ifdef CONFIG_POST + init_post, +#endif + INIT_FUNC_WATCHDOG_RESET + /* + * 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): + * - area that won't get touched by U-Boot and Linux (optional) + * - kernel log buffer + * - protected RAM + * - LCD framebuffer + * - monitor code + * - board info struct + */ + setup_dest_addr, +#if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR) + reserve_logbuffer, +#endif +#ifdef CONFIG_PRAM + reserve_pram, +#endif + reserve_round_4k, +#if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \ + defined(CONFIG_ARM) + reserve_mmu, +#endif +#ifdef CONFIG_LCD + reserve_lcd, +#endif + /* TODO: Why the dependency on CONFIG_8xx? */ +#if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) \ + && !defined(CONFIG_ARM) && !defined(CONFIG_X86) + reserve_video, +#endif + reserve_uboot, +#ifndef CONFIG_SPL_BUILD + reserve_malloc, + reserve_board, +#endif + setup_machine, + reserve_global_data, + reserve_fdt, + reserve_stacks, + setup_dram_config, + show_dram_config, +#ifdef CONFIG_PPC + setup_board_part1, + INIT_FUNC_WATCHDOG_RESET + setup_board_part2, +#endif + setup_baud_rate, + display_new_sp, +#ifdef CONFIG_SYS_EXTBDINFO + setup_board_extra, +#endif + INIT_FUNC_WATCHDOG_RESET + reloc_fdt, + setup_reloc, +#ifndef CONFIG_ARM + jump_to_copy, +#endif + NULL, +}; + +void board_init_f(ulong boot_flags) +{ +#ifndef CONFIG_X86 + gd_t data; + + gd = &data; +#endif + + gd->flags = boot_flags; + + if (initcall_run_list(init_sequence_f)) + hang(); + +#ifndef CONFIG_ARM + /* NOTREACHED - jump_to_copy() does not return */ + hang(); +#endif +} + +#ifdef CONFIG_X86 +/* + * For now this code is only used on x86. + * + * init_sequence_f_r is the list of init functions which are run when + * U-Boot is executing from Flash with a semi-limited 'C' environment. + * The following limitations must be considered when implementing an + * '_f_r' function: + * - 'static' variables are read-only + * - Global Data (gd->xxx) is read/write + * + * The '_f_r' sequence must, as a minimum, copy U-Boot to RAM (if + * supported). It _should_, if possible, copy global data to RAM and + * initialise the CPU caches (to speed up the relocation process) + * + * NOTE: At present only x86 uses this route, but it is intended that + * all archs will move to this when generic relocation is implemented. + */ +static init_fnc_t init_sequence_f_r[] = { + init_cache_f_r, + copy_uboot_to_ram, + clear_bss, + do_elf_reloc_fixups, + + NULL, +}; + +void board_init_f_r(void) +{ + if (initcall_run_list(init_sequence_f_r)) + hang(); + + /* + * U-Boot has been copied into SDRAM, the BSS has been cleared etc. + * Transfer execution from Flash to RAM by calculating the address + * of the in-RAM copy of board_init_r() and calling it + */ + (board_init_r + gd->reloc_off)(gd, gd->relocaddr); + + /* NOTREACHED - board_init_r() does not return */ + hang(); +} +#endif /* CONFIG_X86 */ + +void hang(void) +{ + puts("### ERROR ### Please RESET the board ###\n"); + for (;;); +} |