From e895a4b06f9062f052d438df7f4766b3decdb3d4 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Thu, 23 Oct 2014 18:58:47 -0600 Subject: fdt: Allow ft_board_setup() to report failure This function can fail if the device tree runs out of space. Rather than silently booting with an incomplete device tree, allow the failure to be detected. Unfortunately this involves changing a lot of places in the code. I have not changed behvaiour to return an error where one is not currently returned, to avoid unexpected breakage. Eventually it would be nice to allow boards to register functions to be called to update the device tree. This would avoid all the many functions to do this. However it's not clear yet if this should be done using driver model or with a linker list. This work is left for later. Signed-off-by: Simon Glass Acked-by: Anatolij Gustschin --- board/gateworks/gw_ventana/gw_ventana.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'board/gateworks') diff --git a/board/gateworks/gw_ventana/gw_ventana.c b/board/gateworks/gw_ventana/gw_ventana.c index df491a8fc8..bb08cd272e 100644 --- a/board/gateworks/gw_ventana/gw_ventana.c +++ b/board/gateworks/gw_ventana/gw_ventana.c @@ -1483,7 +1483,7 @@ int misc_init_r(void) * - board (full model from EEPROM) * - peripherals removed from DTB if not loaded on board (per EEPROM config) */ -void ft_board_setup(void *blob, bd_t *bd) +int ft_board_setup(void *blob, bd_t *bd) { struct ventana_board_info *info = &ventana_info; struct ventana_eeprom_config *cfg; @@ -1495,7 +1495,7 @@ void ft_board_setup(void *blob, bd_t *bd) if (getenv("fdt_noauto")) { puts(" Skiping ft_board_setup (fdt_noauto defined)\n"); - return; + return 0; } /* Update partition nodes using info from mtdparts env var */ @@ -1504,7 +1504,7 @@ void ft_board_setup(void *blob, bd_t *bd) if (!model) { puts("invalid board info: Leaving FDT fully enabled\n"); - return; + return 0; } printf(" Adjusting FDT per EEPROM for %s...\n", model); @@ -1523,7 +1523,7 @@ void ft_board_setup(void *blob, bd_t *bd) */ if (getenv("fdt_noconfig")) { puts(" Skiping periperhal config (fdt_noconfig defined)\n"); - return; + return 0; } cfg = econfig; while (cfg->name) { @@ -1533,6 +1533,8 @@ void ft_board_setup(void *blob, bd_t *bd) } cfg++; } + + return 0; } #endif /* defined(CONFIG_OF_FLAT_TREE) && defined(CONFIG_OF_BOARD_SETUP) */ -- cgit