X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=arch%2Fpowerpc%2Flib%2Fbootm.c;h=7088293a3647a6c249369a1e2d436497feb70c8b;hb=9a32084ea0cf55d22384f083002ee9932e074f31;hp=306412114309fb3dd7528208c5677ef355412fb5;hpb=54841ab50c20d6fa6c9cc3eb826989da3a22d934;p=oweals%2Fu-boot.git diff --git a/arch/powerpc/lib/bootm.c b/arch/powerpc/lib/bootm.c index 3064121143..7088293a36 100644 --- a/arch/powerpc/lib/bootm.c +++ b/arch/powerpc/lib/bootm.c @@ -33,6 +33,7 @@ #include #include #include +#include #if defined(CONFIG_OF_LIBFDT) #include @@ -47,7 +48,6 @@ DECLARE_GLOBAL_DATA_PTR; -extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]); extern ulong get_effective_memsize(void); static ulong get_sp (void); static void set_clocks_in_mhz (bd_t *kbd); @@ -69,7 +69,7 @@ static void boot_jump_linux(bootm_headers_t *images) debug ("## Transferring control to Linux (at address %08lx) ...\n", (ulong)kernel); - show_boot_progress (15); + bootstage_mark(BOOTSTAGE_ID_RUN_OS); #if defined(CONFIG_SYS_INIT_RAM_LOCK) && !defined(CONFIG_E500) unlock_ram_in_cache(); @@ -87,16 +87,10 @@ static void boot_jump_linux(bootm_headers_t *images) * r8: 0 * r9: 0 */ -#if defined(CONFIG_85xx) || defined(CONFIG_440) - #define EPAPR_MAGIC (0x45504150) -#else - #define EPAPR_MAGIC (0x65504150) -#endif - debug (" Booting using OF flat tree...\n"); WATCHDOG_RESET (); (*kernel) ((bd_t *)of_flat_tree, 0, 0, EPAPR_MAGIC, - CONFIG_SYS_BOOTMAPSZ, 0, 0); + getenv_bootm_mapsize(), 0, 0); /* does not return */ } else #endif @@ -167,22 +161,27 @@ void arch_lmb_reserve(struct lmb *lmb) sp -= 4096; lmb_reserve(lmb, sp, (CONFIG_SYS_SDRAM_BASE + get_effective_memsize() - sp)); +#ifdef CONFIG_MP + cpu_mp_lmb_reserve(lmb); +#endif + return ; } -static void boot_prep_linux(void) +static void boot_prep_linux(bootm_headers_t *images) { #ifdef CONFIG_MP - /* if we are MP make sure to flush the dcache() to any changes are made - * visibile to all other cores */ - flush_dcache(); + /* + * if we are MP make sure to flush the device tree so any changes are + * made visibile to all other cores. In AMP boot scenarios the cores + * might not be HW cache coherent with each other. + */ + flush_cache((unsigned long)images->ft_addr, images->ft_len); #endif - return ; } static int boot_cmdline_linux(bootm_headers_t *images) { - ulong bootmap_base = getenv_bootm_low(); ulong of_size = images->ft_len; struct lmb *lmb = &images->lmb; ulong *cmd_start = &images->cmdline_start; @@ -192,7 +191,7 @@ static int boot_cmdline_linux(bootm_headers_t *images) if (!of_size) { /* allocate space and init command line */ - ret = boot_get_cmdline (lmb, cmd_start, cmd_end, bootmap_base); + ret = boot_get_cmdline (lmb, cmd_start, cmd_end); if (ret) { puts("ERROR with allocation of cmdline\n"); return ret; @@ -204,7 +203,6 @@ static int boot_cmdline_linux(bootm_headers_t *images) static int boot_bd_t_linux(bootm_headers_t *images) { - ulong bootmap_base = getenv_bootm_low(); ulong of_size = images->ft_len; struct lmb *lmb = &images->lmb; bd_t **kbd = &images->kbd; @@ -213,7 +211,7 @@ static int boot_bd_t_linux(bootm_headers_t *images) if (!of_size) { /* allocate space for kernel copy of board info */ - ret = boot_get_kbd (lmb, kbd, bootmap_base); + ret = boot_get_kbd (lmb, kbd); if (ret) { puts("ERROR with allocation of kernel bd\n"); return ret; @@ -224,6 +222,24 @@ static int boot_bd_t_linux(bootm_headers_t *images) return ret; } +/* + * Verify the device tree. + * + * This function is called after all device tree fix-ups have been enacted, + * so that the final device tree can be verified. The definition of "verified" + * is up to the specific implementation. However, it generally means that the + * addresses of some of the devices in the device tree are compared with the + * actual addresses at which U-Boot has placed them. + * + * Returns 1 on success, 0 on failure. If 0 is returned, U-boot will halt the + * boot process. + */ +static int __ft_verify_fdt(void *fdt) +{ + return 1; +} +__attribute__((weak, alias("__ft_verify_fdt"))) int ft_verify_fdt(void *fdt); + static int boot_body_linux(bootm_headers_t *images) { ulong rd_len; @@ -231,13 +247,16 @@ static int boot_body_linux(bootm_headers_t *images) ulong *initrd_start = &images->initrd_start; ulong *initrd_end = &images->initrd_end; #if defined(CONFIG_OF_LIBFDT) - ulong bootmap_base = getenv_bootm_low(); ulong of_size = images->ft_len; char **of_flat_tree = &images->ft_addr; #endif int ret; +#if defined(CONFIG_OF_LIBFDT) + boot_fdt_add_mem_rsv_regions(lmb, *of_flat_tree); +#endif + /* allocate space and init command line */ ret = boot_cmdline_linux(images); if (ret) @@ -254,7 +273,7 @@ static int boot_body_linux(bootm_headers_t *images) return ret; #if defined(CONFIG_OF_LIBFDT) - ret = boot_relocate_fdt(lmb, bootmap_base, of_flat_tree, &of_size); + ret = boot_relocate_fdt(lmb, of_flat_tree, &of_size); if (ret) return ret; @@ -283,20 +302,25 @@ static int boot_body_linux(bootm_headers_t *images) return ret; of_size = ret; - if (*initrd_start && *initrd_end) + if (*initrd_start && *initrd_end) { of_size += FDT_RAMDISK_OVERHEAD; + fdt_set_totalsize(*of_flat_tree, of_size); + } /* Create a new LMB reservation */ lmb_reserve(lmb, (ulong)*of_flat_tree, of_size); /* fixup the initrd now that we know where it should be */ if (*initrd_start && *initrd_end) fdt_initrd(*of_flat_tree, *initrd_start, *initrd_end, 1); + + if (!ft_verify_fdt(*of_flat_tree)) + return -1; } #endif /* CONFIG_OF_LIBFDT */ return 0; } -__attribute__((noinline)) +noinline int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images) { int ret; @@ -312,7 +336,7 @@ int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *ima } if (flag & BOOTM_STATE_OS_PREP) { - boot_prep_linux(); + boot_prep_linux(images); return 0; } @@ -321,7 +345,7 @@ int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *ima return 0; } - boot_prep_linux(); + boot_prep_linux(images); ret = boot_body_linux(images); if (ret) return ret;