Hi Soeren,
On 01/14/2015 01:34 PM, Soeren Moch wrote:
Add support for hdmi console.
Signed-off-by: Nikita Kiryanov <[email protected]>
Cc: Stefano Babic <[email protected]>
Cc: Igor Grinberg <[email protected]>
---
board/compulab/cm_fx6/cm_fx6.c | 51
++++++++++++++++++++++++++++++++++++++++++
include/configs/cm_fx6.h | 15 +++++++++++++
2 files changed, 66 insertions(+)
[...]
+struct display_info_t const displays[] = {
+ {
+ .bus = -1,
+ .addr = 0,
+ .pixfmt = IPU_PIX_FMT_RGB24,
+ .detect = detect_hdmi,
+ .enable = cm_fx6_enable_hdmi,
+ .mode = {
+ .name = "HDMI",
+ .refresh = 60,
+ .xres = 1024,
+ .yres = 768,
+ .pixclock = 40385,
+ .left_margin = 220,
+ .right_margin = 40,
+ .upper_margin = 21,
+ .lower_margin = 7,
+ .hsync_len = 60,
+ .vsync_len = 10,
+ .sync = FB_SYNC_EXT,
+ .vmode = FB_VMODE_NONINTERLACED,
+ }
+ },
+};
This is not VESA compliant.
+static void cm_fx6_setup_display(void)
+{
+ struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *) CCM_BASE_ADDR;
+ int reg;
+
+ enable_ipu_clock();
+ imx_setup_hdmi();
+ reg = __raw_readl(&mxc_ccm->CCGR3);
+ reg |= MXC_CCM_CCGR3_IPU1_IPU_DI0_MASK;
+ writel(reg, &mxc_ccm->CCGR3);
+}
This will not give the correct pixel clock for a framerate of 60 frames
per second (as probably expected).
Just as a warning: Due to the non-standard video timing most hdmi
monitors will not work. For more compatible settings please have a look
into the tbs2910 board code.
Thanks for the pointer. I'll take a look at the tbs2910 code when I
expand the set of supported display presets. For now this is a
preliminary support.
--
Regards,
Nikita Kiryanov
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