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| author | Mario Scheithauer <mario.scheithauer@siemens.com> | 2022-01-26 11:49:10 +0100 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-02-01 11:54:59 +0000 |
| commit | b11f381740448c10908419ada0d405b05dc37dc0 (patch) | |
| tree | 76c64408501a574f041721a2d981bb8e98bbec09 | |
| parent | 87d1cc659888b7a026ca42be83cd91d2a2d876d2 (diff) | |
| download | coreboot-b11f381740448c10908419ada0d405b05dc37dc0.tar.gz coreboot-b11f381740448c10908419ada0d405b05dc37dc0.tar.bz2 coreboot-b11f381740448c10908419ada0d405b05dc37dc0.zip | |
soc/intel/appololake: Allow to configure SATA ALPM via devicetree
Add a devicetree option to disable SATA Aggressive Link Power
Management. ALPM is a method of saving power. The corresponding FSP-S
UPD parameter is enabled by default. It may be that this feature is
unwanted, for example for a real-time system. Therefore, allow to
disable ALPM using the devicetree.
Change-Id: Ica8920a87ebebe83f5d8cb4d6c8c0a6105e183e4
Signed-off-by: Mario Scheithauer <mario.scheithauer@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61401
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
| -rw-r--r-- | src/soc/intel/apollolake/chip.c | 4 | ||||
| -rw-r--r-- | src/soc/intel/apollolake/chip.h | 3 |
2 files changed, 7 insertions, 0 deletions
diff --git a/src/soc/intel/apollolake/chip.c b/src/soc/intel/apollolake/chip.c index 98844a52fdde..82ec2da4536d 100644 --- a/src/soc/intel/apollolake/chip.c +++ b/src/soc/intel/apollolake/chip.c @@ -693,6 +693,10 @@ void platform_fsp_silicon_init_params_cb(FSPS_UPD *silupd) silconfig->PavpEnable = CONFIG(PAVP); + /* SATA config */ + if (is_devfn_enabled(PCH_DEVFN_SATA)) + silconfig->SataSalpSupport = !(cfg->DisableSataSalpSupport); + mainboard_silicon_init_params(silconfig); } diff --git a/src/soc/intel/apollolake/chip.h b/src/soc/intel/apollolake/chip.h index 482b33330620..f531381fac46 100644 --- a/src/soc/intel/apollolake/chip.h +++ b/src/soc/intel/apollolake/chip.h @@ -190,6 +190,9 @@ struct soc_intel_apollolake_config { * 0:Enable (default), 1:Disable. */ uint8_t disable_xhci_lfps_pm; + + /* SATA Aggressive Link Power Management */ + uint8_t DisableSataSalpSupport; }; typedef struct soc_intel_apollolake_config config_t; |