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authorShaunak Saha <shaunak.saha@intel.com>2020-06-08 18:59:47 -0700
committerPatrick Georgi <pgeorgi@google.com>2020-07-15 08:40:25 +0000
commit1a8949c0c430f6caf7ab67b0ccbca6d3ead0d486 (patch)
tree8886155185bd62ba2c0d9c4c4bcf37758ad70577 /src/soc/intel/tigerlake/chip.h
parent742abd3daf6be57de2df5002b8985ad36884c959 (diff)
downloadcoreboot-1a8949c0c430f6caf7ab67b0ccbca6d3ead0d486.tar.xz
soc/intel/tigerlake: Hook up SATA Port Enable DITO UPDs
SataPortsEnableDitoConfig Enable DEVSLP Idle Timeout settings DmVal and DitoVal. SataPortsDmVal and SataPortsDitoVal helps to determine when to enter Device Sleep. Device Sleep enables the host bus adapter (HBA) to assert the DEVSLP signal as soon as there are no commands outstanding to the device and the port specific Device Sleep idle timer has expired. Device Sleep Idle Timeout values (PxDEVSLP.DITO and PxDEVSLP.DM) are port specific timeout values used by the HBA for determining when to assert the DEVSLP signal. They provides a mechanism for the HBA to apply a programmable amount of hysteresis so as to prevent the HBA from asserting the DEVSLP signal too quickly which may result in undesirable latencies. This patch is created based on Intel Tiger Lake Processor PCH Datasheet with Document number:575857 and Chapter number:12. * PxDEVSLP.DM -> SataPortsDmVal: Enable SATA Port DmVal DITO multiplier. Default is 15. * PxDEVSLP.DITO -> SataPortsDitoVal: Enable SATA Port DmVal DEVSLP Idle Timeout (DITO), Default is 625ms. BUG=b:151163106 BRANCH=None TEST=Build and boot volteer and TGL RVP. Signed-off-by: Shaunak Saha <shaunak.saha@intel.com> Change-Id: I6a824524738a9e0609f54bea9d892b4a42a1d3db Reviewed-on: https://review.coreboot.org/c/coreboot/+/42214 Reviewed-by: Wonkyu Kim <wonkyu.kim@intel.com> Reviewed-by: Caveh Jalali <caveh@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/intel/tigerlake/chip.h')
-rw-r--r--src/soc/intel/tigerlake/chip.h23
1 files changed, 17 insertions, 6 deletions
diff --git a/src/soc/intel/tigerlake/chip.h b/src/soc/intel/tigerlake/chip.h
index fee7105245..59dab58bb8 100644
--- a/src/soc/intel/tigerlake/chip.h
+++ b/src/soc/intel/tigerlake/chip.h
@@ -133,6 +133,23 @@ struct soc_intel_tigerlake_config {
uint8_t SataPortsEnable[8];
uint8_t SataPortsDevSlp[8];
+ /*
+ * Enable(0)/Disable(1) SATA Power Optimizer on PCH side.
+ * Default 0. Setting this to 1 disables the SATA Power Optimizer.
+ */
+ uint8_t SataPwrOptimizeDisable;
+
+ /*
+ * SATA Port Enable Dito Config.
+ * Enable DEVSLP Idle Timeout settings (DmVal, DitoVal).
+ */
+ uint8_t SataPortsEnableDitoConfig[8];
+
+ /* SataPortsDmVal is the DITO multiplier. Default is 15. */
+ uint8_t SataPortsDmVal[8];
+ /* SataPortsDitoVal is the DEVSLP Idle Timeout, default is 625ms */
+ uint16_t SataPortsDitoVal[8];
+
/* Audio related */
uint8_t PchHdaDspEnable;
uint8_t PchHdaAudioLinkHdaEnable;
@@ -337,12 +354,6 @@ struct soc_intel_tigerlake_config {
*/
uint8_t DmiPwrOptimizeDisable;
- /*
- * Enable(0)/Disable(1) SATA Power Optimizer on PCH side.
- * Default 0. Setting this to 1 disables the SATA Power Optimizer.
- */
- uint8_t SataPwrOptimizeDisable;
-
/* structure containing various settings for PCH FIVRs */
struct {
bool configure_ext_fivr;