Allow a device tree to be provided through the standard mechanisms.
Tests have been made using CONFIG_OF_SEPERATE on a MPC8378 board. --- arch/powerpc/lib/board.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+)
diff --git a/arch/powerpc/lib/board.c b/arch/powerpc/lib/board.c index 422b4a3..3a9a6ce 100644 --- a/arch/powerpc/lib/board.c +++ b/arch/powerpc/lib/board.c @@ -26,6 +26,8 @@ #include <command.h> #include <malloc.h> #include <stdio_dev.h> +#include <libfdt.h> +#include <fdtdec.h> #ifdef CONFIG_8xx #include <mpc8xx.h> #endif @@ -124,6 +126,7 @@ DECLARE_GLOBAL_DATA_PTR;
extern ulong __init_end; extern ulong __bss_end; +extern ulong __stop___ex_table; ulong monitor_flash_len;
#if defined(CONFIG_CMD_BEDBUG) @@ -255,6 +258,21 @@ int init_func_watchdog_reset(void) * Initialization sequence */
+#ifdef CONFIG_OF_CONTROL +int find_fdt(void) +{ +#ifdef CONFIG_OF_EMBED + /* get a pointer to the FDT */ + gd->fdt_blob = _binary_dt_dtb_start; +#elif defined CONFIG_OF_SEPARATE + gd->fdt_blob = (void *)&__stop___ex_table; +#endif + gd->fdt_blob = (void *)getenv_ulong("fdtcontroladdr", 16, + (uintptr_t)gd->fdt_blob); + return 0; +} +#endif + static init_fnc_t *init_sequence[] = { #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) probecpu, @@ -321,6 +339,10 @@ static init_fnc_t *init_sequence[] = { #endif INIT_FUNC_WATCHDOG_RESET init_func_ram, +#ifdef CONFIG_OF_CONTROL + find_fdt, + fdtdec_check_fdt, +#endif #if defined(CONFIG_SYS_DRAM_TEST) testdram, #endif /* CONFIG_SYS_DRAM_TEST */