>Пятница, 13 ноября 2020, 12:15 +03:00 от gianluca <gianlucarenzi@xxxxxxxx>: > >On 11/13/20 9:51 AM, Alexander Shiyan wrote: >> Hello All. >> >> I am having problems updating the barebox from version 2019.02 to version 2020.10. >> The barebox i.MX6 CLK driver now uses several patches compared to the previous >> version to fix the err009219 bug, and the display no more works as before. >> I use a board based on i.MX6Q revision 1.2. With the old bootloader, the LVDS channel >> is initialized and I can display the splash screen in the barebox. After loading the kernel, >> everything works too. >> I added source selection for LVDS channels and the kernel works with these additions. >> &clks { >> assigned-clocks = <&clks IMX6QDL_CLK_LDB_DI0_SEL>, >> <&clks IMX6QDL_CLK_LDB_DI0_SEL>; >> assigned-clock-parents = <&clks IMX6QDL_CLK_PLL5_VIDEO_DIV>, >> <&clks IMX6QDL_CLK_PLL5_VIDEO_DIV>; >> }; >> >> The splash screen in new version is not displayed in the barebox. >> So, the question, what I do incorrect and how to fix this? >> Old clk_dump: >> pll5_video (rate 716800008, enabled) >> pll5_post_div (rate 179200002, enabled) >> pll5_video_div (rate 44800001, enabled) >> ldb_di0_sel (rate 44800001, enabled) >> ldb_di0_div_3_5 (rate 12800000, enabled) >> ldb_di0_podf (rate 6400000, enabled) >> ipu1_di0_sel (rate 6400000, enabled) >> ipu1_di0 (rate 6400000, enabled) >> 2400000.ipu@2400000.of_di0_pixel (rate 6400000, enabled) >> ldb_di0 (rate 6400000, enabled) >> New: >> pll5_video (rate 716800008, enable_count: 1, unknown) >> pll5_post_div (rate 358400004, enable_count: 1, always enabled) >This is a div2. Should be div4 > >> pll5_video_div (rate 179200002, enable_count: 1, always enabled) >> ldb_di0_sel (rate 179200002, enable_count: 1, always enabled) >> ldb_di0_div_3_5 (rate 51200000, enable_count: 1, always enabled) >> ldb_di0_podf (rate 25600000, enable_count: 1, always enabled) >> ipu1_di0_sel (rate 25600000, enable_count: 1, always enabled) >> ipu1_di0 (rate 25600000, enable_count: 1, enabled) >> 2400000.ipu@2400000.of_di0_pixel (rate 6400000, enable_count: 1, always enabled) >> ldb_di0 (rate 25600000, enable_count: 0, enabled) >> >> Can anyone help me to resolve this? > >Try to use pll5_post_div as div4 of the original pll5_video. All others >should be adapting correctly then. With the help of the clk_set_rate, I achieved a complete frequency match for the old and new versions. ... But the screen is black and no splash is shown. Thanks anyway! --- _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox