From: Fabio Estevam fabio.estevam@freescale.com
Since commit d9b894603 (mx6sabresd: Add LVDS splash screen support) the following hang happens if the HDMI cable is not connected or the 'panel' variable is not set:
U-Boot 2013.10-rc2-12978-g47ac53d-dirty (Sep 11 2013 - 15:07:38)
CPU: Freescale i.MX6Q rev1.2 at 792 MHz Reset cause: POR Board: MX6-SabreSD DRAM: 1 GiB MMC: FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2 ...
Provide a check to 'dev->detect' in order to prevent the hang.
Reported-by: Pardeep Kumar Singla b45784@freescale.com Suggested-by: Eric Bénard eric@eukrea.com Signed-off-by: Fabio Estevam fabio.estevam@freescale.com --- Changes since v1: - Check dev->detect
board/freescale/mx6sabresd/mx6sabresd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/board/freescale/mx6sabresd/mx6sabresd.c b/board/freescale/mx6sabresd/mx6sabresd.c index c832bd9..0f91fe2 100644 --- a/board/freescale/mx6sabresd/mx6sabresd.c +++ b/board/freescale/mx6sabresd/mx6sabresd.c @@ -313,7 +313,7 @@ int board_video_skip(void) if (!panel) { for (i = 0; i < ARRAY_SIZE(displays); i++) { struct display_info_t const *dev = displays+i; - if (dev->detect(dev)) { + if (dev->detect && dev->detect(dev)) { panel = dev->mode.name; printf("auto-detected panel %s\n", panel); break;