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 detect_lvds() to avoid the hang.
Reported-by: Pardeep Kumar Singla <b45...@freescale.com>
Signed-off-by: Fabio Estevam <fabio.este...@freescale.com>
---
board/freescale/mx6sabresd/mx6sabresd.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/board/freescale/mx6sabresd/mx6sabresd.c
b/board/freescale/mx6sabresd/mx6sabresd.c
index c832bd9..e514529 100644
--- a/board/freescale/mx6sabresd/mx6sabresd.c
+++ b/board/freescale/mx6sabresd/mx6sabresd.c
@@ -263,6 +263,12 @@ static void enable_lvds(struct display_info_t const *dev)
IOMUXC_GPR2_DATA_WIDTH_CH1_24BIT;
writel(reg, &iomux->gpr[2]);
}
+
+static int detect_lvds(struct display_info_t const *dev)
+{
+ return 0;
+}
+
static struct display_info_t const displays[] = {{
.bus = -1,
.addr = 0,
@@ -287,7 +293,7 @@ static struct display_info_t const displays[] = {{
.bus = -1,
.addr = 0,
.pixfmt = IPU_PIX_FMT_LVDS666,
- .detect = NULL,
+ .detect = detect_lvds,
.enable = enable_lvds,
.mode = {
.name = "Hannstar-XGA",
--
1.8.1.2
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