| /* |
| * 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> |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| */ |
| |
| #include <common.h> |
| #include <linux/compiler.h> |
| #include <version.h> |
| #include <console.h> |
| #include <environment.h> |
| #include <dm.h> |
| #include <fdtdec.h> |
| #include <fs.h> |
| #if defined(CONFIG_CMD_IDE) |
| #include <ide.h> |
| #endif |
| #include <i2c.h> |
| #include <initcall.h> |
| #include <logbuff.h> |
| #include <malloc.h> |
| #include <mapmem.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 |
| #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500)) |
| #include <asm/mp.h> |
| #endif |
| |
| #include <os.h> |
| #include <post.h> |
| #include <spi.h> |
| #include <status_led.h> |
| #include <timer.h> |
| #include <trace.h> |
| #include <video.h> |
| #include <watchdog.h> |
| #include <linux/errno.h> |
| #include <asm/io.h> |
| #include <asm/sections.h> |
| #if defined(CONFIG_X86) || defined(CONFIG_ARC) |
| #include <asm/init_helpers.h> |
| #endif |
| #if defined(CONFIG_X86) || defined(CONFIG_ARC) || defined(CONFIG_XTENSA) |
| #include <asm/relocate.h> |
| #endif |
| #include <dm/root.h> |
| #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 |
| |
| /* |
| * TODO(sjg@chromium.org): 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 |
| */ |
| __weak void coloured_LED_init(void) {} |
| __weak void red_led_on(void) {} |
| __weak void red_led_off(void) {} |
| __weak void green_led_on(void) {} |
| __weak void green_led_off(void) {} |
| __weak void yellow_led_on(void) {} |
| __weak void yellow_led_off(void) {} |
| __weak void blue_led_on(void) {} |
| __weak void blue_led_off(void) {} |
| |
| /* |
| * 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... |
| */ |
| |
| #if defined(CONFIG_WATCHDOG) || defined(CONFIG_HW_WATCHDOG) |
| static int init_func_watchdog_init(void) |
| { |
| # if defined(CONFIG_HW_WATCHDOG) && \ |
| (defined(CONFIG_M68K) || defined(CONFIG_MICROBLAZE) || \ |
| defined(CONFIG_SH) || defined(CONFIG_AT91SAM9_WATCHDOG) || \ |
| defined(CONFIG_DESIGNWARE_WATCHDOG) || \ |
| defined(CONFIG_IMX_WATCHDOG)) |
| hw_watchdog_init(); |
| puts(" Watchdog enabled\n"); |
| # endif |
| WATCHDOG_RESET(); |
| |
| return 0; |
| } |
| |
| int init_func_watchdog_reset(void) |
| { |
| WATCHDOG_RESET(); |
| |
| return 0; |
| } |
| #endif /* CONFIG_WATCHDOG */ |
| |
| __weak void board_add_ram_info(int use_default) |
| { |
| /* please define platform specific 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) |
| { |
| #if !defined(CONFIG_SANDBOX) && !defined(CONFIG_EFI_APP) |
| ulong bss_start, bss_end, text_base; |
| |
| bss_start = (ulong)&__bss_start; |
| bss_end = (ulong)&__bss_end; |
| |
| #ifdef CONFIG_SYS_TEXT_BASE |
| text_base = CONFIG_SYS_TEXT_BASE; |
| #else |
| text_base = CONFIG_SYS_MONITOR_BASE; |
| #endif |
| |
| debug("U-Boot code: %08lX -> %08lX BSS: -> %08lX\n", |
| text_base, bss_start, bss_end); |
| #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; |
| } |
| |
| #if defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_M68K) |
| static int init_func_ram(void) |
| { |
| return initdram(); |
| } |
| #endif |
| |
| static int show_dram_config(void) |
| { |
| unsigned long long 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: %llx ", i, |
| (unsigned long long)(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; |
| } |
| |
| __weak int 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 |
| |
| return 0; |
| } |
| |
| #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 |
| |
| __maybe_unused |
| static int zero_global_data(void) |
| { |
| memset((void *)gd, '\0', sizeof(gd_t)); |
| |
| return 0; |
| } |
| |
| static int setup_mon_len(void) |
| { |
| #if defined(__ARM__) || defined(__MICROBLAZE__) |
| gd->mon_len = (ulong)&__bss_end - (ulong)_start; |
| #elif defined(CONFIG_SANDBOX) || defined(CONFIG_EFI_APP) |
| gd->mon_len = (ulong)&_end - (ulong)_init; |
| #elif defined(CONFIG_NIOS2) || defined(CONFIG_XTENSA) |
| gd->mon_len = CONFIG_SYS_MONITOR_LEN; |
| #elif defined(CONFIG_NDS32) || defined(CONFIG_SH) |
| gd->mon_len = (ulong)(&__bss_end) - (ulong)(&_start); |
| #elif defined(CONFIG_SYS_MONITOR_BASE) |
| /* 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; |
| } |
| |
| __weak int mach_cpu_init(void) |
| { |
| return 0; |
| } |
| |
| /* Get the top of usable RAM */ |
| __weak ulong board_get_usable_ram_top(ulong total_size) |
| { |
| #ifdef CONFIG_SYS_SDRAM_BASE |
| /* |
| * Detect whether we have so much RAM that it goes past the end of our |
| * 32-bit address space. If so, clip the usable RAM so it doesn't. |
| */ |
| if (gd->ram_top < CONFIG_SYS_SDRAM_BASE) |
| /* |
| * Will wrap back to top of 32-bit space when reservations |
| * are made. |
| */ |
| return 0; |
| #endif |
| 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->relocaddr = 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->relocaddr > determine_mp_bootpg(NULL)) { |
| gd->relocaddr = determine_mp_bootpg(NULL); |
| debug("Reserving MP boot page to %08lx\n", gd->relocaddr); |
| } |
| #endif |
| return 0; |
| } |
| |
| #if defined(CONFIG_LOGBUFFER) |
| static int reserve_logbuffer(void) |
| { |
| #ifndef CONFIG_ALT_LB_ADDR |
| /* reserve kernel log buffer */ |
| gd->relocaddr -= LOGBUFF_RESERVE; |
| debug("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, |
| gd->relocaddr); |
| #endif |
| |
| return 0; |
| } |
| #endif |
| |
| #ifdef CONFIG_PRAM |
| /* reserve protected RAM */ |
| static int reserve_pram(void) |
| { |
| ulong reg; |
| |
| reg = getenv_ulong("pram", 10, CONFIG_PRAM); |
| gd->relocaddr -= (reg << 10); /* size is in kB */ |
| debug("Reserving %ldk for protected RAM at %08lx\n", reg, |
| gd->relocaddr); |
| return 0; |
| } |
| #endif /* CONFIG_PRAM */ |
| |
| /* Round memory pointer down to next 4 kB limit */ |
| static int reserve_round_4k(void) |
| { |
| gd->relocaddr &= ~(4096 - 1); |
| return 0; |
| } |
| |
| #ifdef CONFIG_ARM |
| static int reserve_mmu(void) |
| { |
| #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) |
| /* reserve TLB table */ |
| gd->arch.tlb_size = PGTABLE_SIZE; |
| gd->relocaddr -= gd->arch.tlb_size; |
| |
| /* round down to next 64 kB limit */ |
| gd->relocaddr &= ~(0x10000 - 1); |
| |
| gd->arch.tlb_addr = gd->relocaddr; |
| debug("TLB table from %08lx to %08lx\n", gd->arch.tlb_addr, |
| gd->arch.tlb_addr + gd->arch.tlb_size); |
| |
| #ifdef CONFIG_SYS_MEM_RESERVE_SECURE |
| /* |
| * Record allocated tlb_addr in case gd->tlb_addr to be overwritten |
| * with location within secure ram. |
| */ |
| gd->arch.tlb_allocated = gd->arch.tlb_addr; |
| #endif |
| #endif |
| |
| return 0; |
| } |
| #endif |
| |
| static int reserve_video(void) |
| { |
| #ifdef CONFIG_DM_VIDEO |
| ulong addr; |
| int ret; |
| |
| addr = gd->relocaddr; |
| ret = video_reserve(&addr); |
| if (ret) |
| return ret; |
| gd->relocaddr = addr; |
| #elif defined(CONFIG_LCD) |
| # ifdef CONFIG_FB_ADDR |
| gd->fb_base = CONFIG_FB_ADDR; |
| # else |
| /* reserve memory for LCD display (always full pages) */ |
| gd->relocaddr = lcd_setmem(gd->relocaddr); |
| gd->fb_base = gd->relocaddr; |
| # endif /* CONFIG_FB_ADDR */ |
| #elif defined(CONFIG_VIDEO) && \ |
| (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \ |
| !defined(CONFIG_ARM) && !defined(CONFIG_X86) && \ |
| !defined(CONFIG_M68K) |
| /* reserve memory for video display (always full pages) */ |
| gd->relocaddr = video_setmem(gd->relocaddr); |
| gd->fb_base = gd->relocaddr; |
| #endif |
| |
| return 0; |
| } |
| |
| static int reserve_trace(void) |
| { |
| #ifdef CONFIG_TRACE |
| gd->relocaddr -= CONFIG_TRACE_BUFFER_SIZE; |
| gd->trace_buff = map_sysmem(gd->relocaddr, CONFIG_TRACE_BUFFER_SIZE); |
| debug("Reserving %dk for trace data at: %08lx\n", |
| CONFIG_TRACE_BUFFER_SIZE >> 10, gd->relocaddr); |
| #endif |
| |
| return 0; |
| } |
| |
| static int reserve_uboot(void) |
| { |
| /* |
| * reserve memory for U-Boot code, data & bss |
| * round down to next 4 kB limit |
| */ |
| gd->relocaddr -= gd->mon_len; |
| gd->relocaddr &= ~(4096 - 1); |
| #ifdef CONFIG_E500 |
| /* round down to next 64 kB limit so that IVPR stays aligned */ |
| gd->relocaddr &= ~(65536 - 1); |
| #endif |
| |
| debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10, |
| gd->relocaddr); |
| |
| gd->start_addr_sp = gd->relocaddr; |
| |
| return 0; |
| } |
| |
| /* reserve memory for malloc() area */ |
| static int reserve_malloc(void) |
| { |
| gd->start_addr_sp = gd->start_addr_sp - TOTAL_MALLOC_LEN; |
| debug("Reserving %dk for malloc() at: %08lx\n", |
| TOTAL_MALLOC_LEN >> 10, gd->start_addr_sp); |
| return 0; |
| } |
| |
| /* (permanently) allocate a Board Info struct */ |
| static int reserve_board(void) |
| { |
| if (!gd->bd) { |
| gd->start_addr_sp -= sizeof(bd_t); |
| gd->bd = (bd_t *)map_sysmem(gd->start_addr_sp, sizeof(bd_t)); |
| memset(gd->bd, '\0', sizeof(bd_t)); |
| debug("Reserving %zu Bytes for Board Info at: %08lx\n", |
| sizeof(bd_t), gd->start_addr_sp); |
| } |
| return 0; |
| } |
| |
| 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->start_addr_sp -= sizeof(gd_t); |
| gd->new_gd = (gd_t *)map_sysmem(gd->start_addr_sp, sizeof(gd_t)); |
| debug("Reserving %zu Bytes for Global Data at: %08lx\n", |
| sizeof(gd_t), gd->start_addr_sp); |
| return 0; |
| } |
| |
| static int reserve_fdt(void) |
| { |
| #ifndef CONFIG_OF_EMBED |
| /* |
| * If the device tree is sitting immediately 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->start_addr_sp -= gd->fdt_size; |
| gd->new_fdt = map_sysmem(gd->start_addr_sp, gd->fdt_size); |
| debug("Reserving %lu Bytes for FDT at: %08lx\n", |
| gd->fdt_size, gd->start_addr_sp); |
| } |
| #endif |
| |
| return 0; |
| } |
| |
| int arch_reserve_stacks(void) |
| { |
| return 0; |
| } |
| |
| static int reserve_stacks(void) |
| { |
| /* make stack pointer 16-byte aligned */ |
| gd->start_addr_sp -= 16; |
| gd->start_addr_sp &= ~0xf; |
| |
| /* |
| * let the architecture-specific code tailor gd->start_addr_sp and |
| * gd->irq_sp |
| */ |
| return arch_reserve_stacks(); |
| } |
| |
| static int display_new_sp(void) |
| { |
| debug("New Stack Pointer is: %08lx\n", gd->start_addr_sp); |
| |
| return 0; |
| } |
| |
| #if defined(CONFIG_M68K) || defined(CONFIG_MIPS) || defined(CONFIG_PPC) || \ |
| defined(CONFIG_SH) |
| 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_MPC8260) || 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) || defined(CONFIG_M68K) |
| bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */ |
| #endif |
| #if defined(CONFIG_MPC83xx) |
| bd->bi_immrbar = CONFIG_SYS_IMMR; |
| #endif |
| |
| return 0; |
| } |
| #endif |
| |
| #if defined(CONFIG_PPC) || defined(CONFIG_M68K) |
| 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 */ |
| #if defined(CONFIG_M68K) && defined(CONFIG_PCI) |
| bd->bi_pcifreq = gd->pci_clk; |
| #endif |
| #if defined(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 |
| |
| 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 reloc_fdt(void) |
| { |
| #ifndef CONFIG_OF_EMBED |
| if (gd->flags & GD_FLG_SKIP_RELOC) |
| return 0; |
| if (gd->new_fdt) { |
| memcpy(gd->new_fdt, gd->fdt_blob, gd->fdt_size); |
| gd->fdt_blob = gd->new_fdt; |
| } |
| #endif |
| |
| return 0; |
| } |
| |
| static int setup_reloc(void) |
| { |
| if (gd->flags & GD_FLG_SKIP_RELOC) { |
| debug("Skipping relocation due to flag\n"); |
| return 0; |
| } |
| |
| #ifdef CONFIG_SYS_TEXT_BASE |
| gd->reloc_off = gd->relocaddr - CONFIG_SYS_TEXT_BASE; |
| #ifdef CONFIG_M68K |
| /* |
| * On all ColdFire arch cpu, monitor code starts always |
| * just after the default vector table location, so at 0x400 |
| */ |
| gd->reloc_off = gd->relocaddr - (CONFIG_SYS_TEXT_BASE + 0x400); |
| #endif |
| #endif |
| 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 %08lx, sp at %08lx\n", |
| gd->relocaddr, (ulong)map_to_sysmem(gd->new_gd), |
| gd->start_addr_sp); |
| |
| return 0; |
| } |
| |
| #ifdef CONFIG_OF_BOARD_FIXUP |
| static int fix_fdt(void) |
| { |
| return board_fix_fdt((void *)gd->fdt_blob); |
| } |
| #endif |
| |
| /* ARM calls relocate_code from its crt0.S */ |
| #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX) && \ |
| !CONFIG_IS_ENABLED(X86_64) |
| |
| static int jump_to_copy(void) |
| { |
| if (gd->flags & GD_FLG_SKIP_RELOC) |
| return 0; |
| /* |
| * 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. |
| */ |
| #if defined(CONFIG_X86) || defined(CONFIG_ARC) |
| /* |
| * 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) |
| */ |
| arch_setup_gd(gd->new_gd); |
| board_init_f_r_trampoline(gd->start_addr_sp); |
| #else |
| relocate_code(gd->start_addr_sp, gd->new_gd, gd->relocaddr); |
| #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 int initf_console_record(void) |
| { |
| #if defined(CONFIG_CONSOLE_RECORD) && defined(CONFIG_SYS_MALLOC_F_LEN) |
| return console_record_init(); |
| #else |
| return 0; |
| #endif |
| } |
| |
| static int initf_dm(void) |
| { |
| #if defined(CONFIG_DM) && defined(CONFIG_SYS_MALLOC_F_LEN) |
| int ret; |
| |
| ret = dm_init_and_scan(true); |
| if (ret) |
| return ret; |
| #endif |
| #ifdef CONFIG_TIMER_EARLY |
| ret = dm_timer_init(); |
| if (ret) |
| return ret; |
| #endif |
| |
| return 0; |
| } |
| |
| /* Architecture-specific memory reservation */ |
| __weak int reserve_arch(void) |
| { |
| return 0; |
| } |
| |
| __weak int arch_cpu_init_dm(void) |
| { |
| return 0; |
| } |
| |
| static const init_fnc_t init_sequence_f[] = { |
| setup_mon_len, |
| #ifdef CONFIG_OF_CONTROL |
| fdtdec_setup, |
| #endif |
| #ifdef CONFIG_TRACE |
| trace_early_init, |
| #endif |
| initf_malloc, |
| initf_console_record, |
| #if defined(CONFIG_HAVE_FSP) |
| arch_fsp_init, |
| #endif |
| arch_cpu_init, /* basic arch cpu dependent setup */ |
| mach_cpu_init, /* SoC/machine dependent CPU setup */ |
| initf_dm, |
| arch_cpu_init_dm, |
| mark_bootstage, /* need timer, go after init dm */ |
| #if defined(CONFIG_BOARD_EARLY_INIT_F) |
| board_early_init_f, |
| #endif |
| #if defined(CONFIG_PPC) || defined(CONFIG_SYS_FSL_CLK) || defined(CONFIG_M68K) |
| /* get CPU and bus clocks according to the environment variable */ |
| get_clocks, /* get CPU and bus clocks (etc.) */ |
| #endif |
| timer_init, /* initialize timer */ |
| #if defined(CONFIG_BOARD_POSTCLK_INIT) |
| board_postclk_init, |
| #endif |
| env_init, /* initialize environment */ |
| init_baud_rate, /* initialze baudrate settings */ |
| serial_init, /* serial communications setup */ |
| console_init_f, /* stage 1 init of console */ |
| display_options, /* say that we are here */ |
| display_text_info, /* show debugging info if required */ |
| #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_SH) || \ |
| defined(CONFIG_X86) |
| checkcpu, |
| #endif |
| #if defined(CONFIG_DISPLAY_CPUINFO) |
| print_cpuinfo, /* display cpu info (and speed) */ |
| #endif |
| #if defined(CONFIG_DISPLAY_BOARDINFO) |
| show_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_SYS_I2C) |
| init_func_i2c, |
| #endif |
| #if defined(CONFIG_HARD_SPI) |
| init_func_spi, |
| #endif |
| announce_dram_init, |
| /* TODO: unify all these dram functions? */ |
| #if defined(CONFIG_ARM) || defined(CONFIG_X86) || defined(CONFIG_NDS32) || \ |
| defined(CONFIG_MICROBLAZE) || defined(CONFIG_AVR32) || \ |
| defined(CONFIG_SH) |
| dram_init, /* configure available RAM banks */ |
| #endif |
| #if defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_M68K) |
| 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) |
| reserve_logbuffer, |
| #endif |
| #ifdef CONFIG_PRAM |
| reserve_pram, |
| #endif |
| reserve_round_4k, |
| #ifdef CONFIG_ARM |
| reserve_mmu, |
| #endif |
| reserve_video, |
| reserve_trace, |
| reserve_uboot, |
| reserve_malloc, |
| reserve_board, |
| setup_machine, |
| reserve_global_data, |
| reserve_fdt, |
| reserve_arch, |
| reserve_stacks, |
| dram_init_banksize, |
| show_dram_config, |
| #if defined(CONFIG_M68K) || defined(CONFIG_MIPS) || defined(CONFIG_PPC) || \ |
| defined(CONFIG_SH) |
| setup_board_part1, |
| #endif |
| #if defined(CONFIG_PPC) || defined(CONFIG_M68K) |
| INIT_FUNC_WATCHDOG_RESET |
| setup_board_part2, |
| #endif |
| display_new_sp, |
| #ifdef CONFIG_SYS_EXTBDINFO |
| setup_board_extra, |
| #endif |
| #ifdef CONFIG_OF_BOARD_FIXUP |
| fix_fdt, |
| #endif |
| INIT_FUNC_WATCHDOG_RESET |
| reloc_fdt, |
| setup_reloc, |
| #if defined(CONFIG_X86) || defined(CONFIG_ARC) |
| copy_uboot_to_ram, |
| do_elf_reloc_fixups, |
| clear_bss, |
| #endif |
| #if defined(CONFIG_XTENSA) |
| clear_bss, |
| #endif |
| #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX) && \ |
| !CONFIG_IS_ENABLED(X86_64) |
| jump_to_copy, |
| #endif |
| NULL, |
| }; |
| |
| void board_init_f(ulong boot_flags) |
| { |
| #ifdef CONFIG_SYS_GENERIC_GLOBAL_DATA |
| /* |
| * For some architectures, global data is initialized and used before |
| * calling this function. The data should be preserved. For others, |
| * CONFIG_SYS_GENERIC_GLOBAL_DATA should be defined and use the stack |
| * here to host global data until relocation. |
| */ |
| gd_t data; |
| |
| gd = &data; |
| |
| /* |
| * Clear global data before it is accessed at debug print |
| * in initcall_run_list. Otherwise the debug print probably |
| * get the wrong value of gd->have_console. |
| */ |
| zero_global_data(); |
| #endif |
| |
| gd->flags = boot_flags; |
| gd->have_console = 0; |
| |
| if (initcall_run_list(init_sequence_f)) |
| hang(); |
| |
| #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX) && \ |
| !defined(CONFIG_EFI_APP) && !CONFIG_IS_ENABLED(X86_64) |
| /* NOTREACHED - jump_to_copy() does not return */ |
| hang(); |
| #endif |
| } |
| |
| #if defined(CONFIG_X86) || defined(CONFIG_ARC) |
| /* |
| * 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 const init_fnc_t init_sequence_f_r[] = { |
| #if !CONFIG_IS_ENABLED(X86_64) |
| init_cache_f_r, |
| #endif |
| |
| NULL, |
| }; |
| |
| void board_init_f_r(void) |
| { |
| if (initcall_run_list(init_sequence_f_r)) |
| hang(); |
| |
| /* |
| * The pre-relocation drivers may be using memory that has now gone |
| * away. Mark serial as unavailable - this will fall back to the debug |
| * UART if available. |
| */ |
| gd->flags &= ~GD_FLG_SERIAL_READY; |
| |
| /* |
| * 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_t *)gd, gd->relocaddr); |
| |
| /* NOTREACHED - board_init_r() does not return */ |
| hang(); |
| } |
| #endif /* CONFIG_X86 */ |