Am 23.07.2015 um 13:46 schrieb Andreas Färber: > Salut Alexandre, > > Am 09.07.2015 um 09:32 schrieb Alexandre Courbot: >> Tegra124 requires the bootloader to perform VPR initialization, otherwise the >> GPU cannot be used by the system. Since using the GPU without that >> initialization results in a hang, the GPU DT node is left disabled, and it is >> the task of the bootloader to enable it after ensuring it is safe to use the >> GPU. >> >> VPR init is already performed since patch df3443dfa449, but the device tree was >> left untouched. This patch series performs this last step and prepares the GPU >> intialization code to receive more code for newer chips. > > Tested-by: Andreas Färber <afaerber@xxxxxxx> > > I've tested this patchset on v2015.07 with 4.2.0-rc3-00115-gc5dfd65 - > with these two patches I get a console login on HDMI again. > > However, I'm still having trouble with X11... Should that be working > with linux.git? (haven't tried linux-next.git yet) Not much better with next-20150723, it finds the IOMMU now but otherwise mostly unchanged: [ 2.843264] [drm] Initialized drm 1.1.0 20060810 [ 2.850224] tegra-hdmi 54280000.hdmi: failed to get HDMI regulator [...] [ 6.310099] [drm] not a PCI device; no HDMI [ 6.314401] nouveau [ DEVICE][57000000.gpu] BOOT0 : 0x0ea000a1 [ 6.320540] nouveau [ DEVICE][57000000.gpu] Chipset: GK20A (NVEA) [ 6.326847] nouveau [ DEVICE][57000000.gpu] Family : NVE0 [ 6.366513] nouveau [ INSTMEM][57000000.gpu] using IOMMU [ 6.372805] nouveau [ VOLT][57000000.gpu] The default voltage is 1000000uV [ 6.380046] nouveau [ VOLT][57000000.gpu] GPU voltage: 1015000uv [ 6.386400] nouveau [ CLK][57000000.gpu] parent clock rate: 12 Mhz [ 6.394768] nouveau [ CLK][57000000.gpu] --: core 198 MHz [ 6.494884] nouveau [ PGRAPH][57000000.gpu] using external firmware [ 6.501553] nouveau 57000000.gpu: Direct firmware load for nouveau/nvea_fuc409c failed with error -2 [ 6.510923] nouveau 57000000.gpu: Direct firmware load for nouveau/fuc409c failed with error -2 [ 6.519661] nouveau E[ PGRAPH][57000000.gpu] failed to load fuc409c [ 6.526664] [TTM] Zone kernel: Available graphics memory: 373640 kiB [ 6.533201] [TTM] Zone highmem: Available graphics memory: 1032584 kiB [ 6.539797] [TTM] Initializing pool allocator [ 6.544232] [TTM] Initializing DMA pool allocator [ 6.549118] nouveau [ DRM] VRAM: 0 MiB [ 6.553295] nouveau [ DRM] GART: 1048576 MiB [ 6.649608] nouveau E[ PFIFO][57000000.gpu] unsupported engines 0x00000030 [ 6.729044] nouveau E[ DRM] failed to create ce channel, -22 [ 6.825300] nouveau E[ PFIFO][57000000.gpu] unsupported engines 0x00000001 [ 6.904234] nouveau E[ DRM] failed to create kernel channel, -22 [ 6.910976] +5V_HDMI_CON: supplied by +5V_SYS [ 6.915525] +1.05V_RUN_AVDD_HDMI_PLL: supplied by +1.05V_RUN [ 6.921424] +3.3V_RUN: supplied by +3.3V_SYS [ 6.925762] +3.3V_AVDD_HDMI_AP_GATED: supplied by +3.3V_RUN [ 6.934748] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [ 6.941397] [drm] No driver support for vblank timestamp query. [ 7.020224] Console: switching to colour frame buffer device 160x64 [ 7.038895] drm drm: fb0: frame buffer device [ 7.066961] [drm] Initialized tegra 0.0.0 20120330 on minor 1 Regards, Andreas -- SUSE Linux GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany GF: Felix Imendörffer, Jane Smithard, Dilip Upmanyu, Graham Norton; HRB 21284 (AG Nürnberg) -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
