diff options
| author | Arthur Heymans <arthur@aheymans.xyz> | 2017-01-02 16:16:45 +0100 |
|---|---|---|
| committer | Alexander Couzens <lynxis@fe80.eu> | 2017-02-19 19:15:40 +0100 |
| commit | f9d5308690e96002dbeab77b78e499dcd2d3a42f (patch) | |
| tree | deab6f631bc590927ca65fbb9a13f9f3da3f1bf7 /src/mainboard/lenovo/t400/romstage.c | |
| parent | 3fee215a3e0ee121f5764a4e9fe194b249e42009 (diff) | |
mb/lenovo/t400: Implement hybrid graphic in romstage
The hybrid driver select by DRIVERS_LENOVO_HYBRID_GRAPHICS doesn't work
for t400/t500.
Replace it with a custom romstage implementation.
Tested on Lenovo T500 with dual graphics:
* Intel Native GFX init
* AMD VBios
* GNU Linux 4.8.13
* SeaBios as payload
* Discrete is working (44 W)
* Integrated is working (24 W)
* Switchable is working (34 W)
** Both GPUs are enabled, with Intel being connected to the panel
** DRI_PRIME allows to use AMD GPU
** ACPI doesn't seem to work (no vgaswitcheroo)
Depends on Change-Id: I4dc00005270240c048272b2e4f52ae46ba1c9422
Depends on Change-Id: If389016f3bb0c4c2fd0b826914997a87a9137201
Change-Id: I7496876e9b434d4a2388e1ede27ac604670339b7
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/18010
Tested-by: build bot (Jenkins)
Reviewed-by: Alexander Couzens <lynxis@fe80.eu>
Diffstat (limited to 'src/mainboard/lenovo/t400/romstage.c')
| -rw-r--r-- | src/mainboard/lenovo/t400/romstage.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/mainboard/lenovo/t400/romstage.c b/src/mainboard/lenovo/t400/romstage.c index d110d4fc44..2a3a770bee 100644 --- a/src/mainboard/lenovo/t400/romstage.c +++ b/src/mainboard/lenovo/t400/romstage.c @@ -36,6 +36,8 @@ #define LPC_DEV PCI_DEV(0, 0x1f, 0) #define MCH_DEV PCI_DEV(0, 0, 0) +void hybrid_graphics_init(sysinfo_t *sysinfo); + static void early_lpc_setup(void) { /* Set up SuperIO LPC forwards */ @@ -101,9 +103,13 @@ void mainboard_romstage_entry(unsigned long bist) memset(&sysinfo, 0, sizeof(sysinfo)); sysinfo.spd_map[0] = 0x50; sysinfo.spd_map[2] = 0x51; - sysinfo.enable_igd = 1; - sysinfo.enable_peg = 0; get_gmch_info(&sysinfo); + + /* Configure graphic GPIOs. + * Make sure there's a little delay between + * setup_pch_gpios() and this call ! */ + hybrid_graphics_init(&sysinfo); + raminit(&sysinfo, s3resume); const u32 deven = pci_read_config32(MCH_DEV, D0F0_DEVEN); |