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broadwell: Disable ADSP power gating feature by default 

Disable ADSP D3 and SRAM power gating features by default, and make
the devicetree.cb flags into enable flags instead of disable.

BUG=chrome-os-partner:31588
BRANCH=samus,auron
TEST=build and boot on samus

Change-Id: Ibda298b995b07a2826a406e74e0d244b1fd97746
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Original-Commit-Id: b81ef37c036d61dc56e650796227dcc84a7ccc89
Original-Change-Id: Ib881290acc07819b55d776d4696bf0062df4d50e
Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/220863
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9218
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
This commit is contained in:
Duncan Laurie 2014-10-01 13:47:20 -07:00 committed by Patrick Georgi
parent 767d245ebf
commit d9f9507065
2 changed files with 18 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
src/soc/intel/broadwell/adsp.c
View File

@ -69,21 +69,25 @@ static void adsp_init(struct device *dev)
/* Set D3 Power Gating Enable in D19:F0:A0 based on PCH type */
tmp32 = pci_read_config32(dev, ADSP_PCI_VDRTCTL0);
if (config->adsp_d3_pg_disable) {
if (pch_is_wpt()) {
tmp32 |= ADSP_VDRTCTL0_D3PGD_WPT;
if (config->adsp_d3_pg_enable) {
tmp32 &= ~ADSP_VDRTCTL0_D3PGD_WPT;
if (config->adsp_sram_pg_enable)
tmp32 &= ~ADSP_VDRTCTL0_D3SRAMPGD_WPT;
else
tmp32 |= ADSP_VDRTCTL0_D3SRAMPGD_WPT;
} else {
tmp32 |= ADSP_VDRTCTL0_D3PGD_LPT;
tmp32 |= ADSP_VDRTCTL0_D3SRAMPGD_LPT;
tmp32 |= ADSP_VDRTCTL0_D3PGD_WPT;
}
} else {
if (pch_is_wpt()) {
tmp32 &= ~ADSP_VDRTCTL0_D3PGD_WPT;
tmp32 &= ~ADSP_VDRTCTL0_D3SRAMPGD_WPT;
} else {
if (config->adsp_d3_pg_enable) {
tmp32 &= ~ADSP_VDRTCTL0_D3PGD_LPT;
if (config->adsp_sram_pg_enable)
tmp32 &= ~ADSP_VDRTCTL0_D3SRAMPGD_LPT;
else
tmp32 |= ADSP_VDRTCTL0_D3SRAMPGD_LPT;
} else {
tmp32 |= ADSP_VDRTCTL0_D3PGD_LPT;
}
}
pci_write_config32(dev, ADSP_PCI_VDRTCTL0, tmp32);

5
src/soc/intel/broadwell/chip.h
View File

@ -84,8 +84,9 @@ struct soc_intel_broadwell_config {
uint8_t sio_i2c0_voltage;
uint8_t sio_i2c1_voltage;
/* Disable ADSP power gating in D3 */
uint8_t adsp_d3_pg_disable;
/* Enable ADSP power gating features */
uint8_t adsp_d3_pg_enable;
uint8_t adsp_sram_pg_enable;
/*
* Clock Disable Map: