sb/intel/ibexpeak: Decode more LPC IO ranges

3b452e0 "nb/intel/nehalem: Move PCH init to sb/intel/ibexpeak"
introduced a regression where the GAME_L decode range was not set
up, which is used by the WACOM digitizer on the Thinkpad X201T.

Change-Id: Ie569d567a65010aa5372323f8610a1b8b5d2599d
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36994
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Arthur Heymans 2019-11-20 12:17:18 +01:00
parent 4debbe74ac
commit d5e7a6d9c5
1 changed files with 15 additions and 9 deletions

View File

@ -62,15 +62,21 @@ static void early_lpc_init(void)
const struct device *dev = pcidev_on_root(0x1f, 0);
const struct southbridge_intel_ibexpeak_config *config = NULL;
/* Add some default decode ranges:
- 0x2e/2f, 0x4e/0x4f
- EC/Mouse/KBC 60/64, 62/66
- 0x3f8 COMA
If more are needed, update in mainboard_lpc_init hook
*/
pci_write_config16(PCH_LPC_DEV, LPC_EN,
CNF2_LPC_EN | CNF1_LPC_EN | MC_LPC_EN | KBC_LPC_EN |
COMA_LPC_EN);
/*
* Enable some common LPC IO ranges:
* - 0x2e/0x2f, 0x4e/0x4f often SuperIO
* - 0x60/0x64, 0x62/0x66 often KBC/EC
* - 0x3f0-0x3f5/0x3f7 FDD
* - 0x378-0x37f and 0x778-0x77f LPT
* - 0x2f8-0x2ff COMB
* - 0x3f8-0x3ff COMA
* - 0x208-0x20f GAMEH
* - 0x200-0x207 GAMEL
*/
pci_write_config16(PCH_LPC_DEV, LPC_EN, CNF2_LPC_EN | CNF1_LPC_EN
| MC_LPC_EN | KBC_LPC_EN | GAMEH_LPC_EN
| GAMEL_LPC_EN | FDD_LPC_EN | LPT_LPC_EN
| COMB_LPC_EN | COMA_LPC_EN);
pci_write_config16(PCH_LPC_DEV, LPC_IO_DEC, 0x10);
/* Clear PWR_FLR */