broadwell: Misc updates from 2.1.0 ref code

- ADSP IRQ should be exclusive
- HDA should write reg 0x43 even if disabled
- A few clock gating tweaks based on ref code changes
- Move SATA clock gating to sata.c where SIR changes are done
- Add support for enabling Deep SX in AC/DC modes
- CLKREQ VR Idle for enabled PCIE ports

BUG=chrome-os-partner:28234
BRANCH=None
TEST=build and boot on samus

Original-Change-Id: Icece58e32b7a5d2b359debd5516a230cae3fd48c
Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/211611
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
(cherry picked from commit c0e22ba043ed96bdddca4989b2f29d0e989f6fef)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: If5f5e1666aa9660e31305ee6369f2febf6757b99
Reviewed-on: http://review.coreboot.org/8952
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>

1 files changed, 8 insertions, 7 deletions

diff --git a/src/soc/intel/broadwell/hda.c b/src/soc/intel/broadwell/hda.c
index 76868059ec..ba648dbf8d 100644
--- a/src/soc/intel/broadwell/hda.c
+++ b/src/soc/intel/broadwell/hda.c
@@ -79,10 +79,6 @@ static void hda_pch_init(struct device *dev, u8 *base)
 		pci_write_config32(dev, 0x120, reg32);
 	}
 
-	reg8 = pci_read_config8(dev, 0x43);
-	reg8 &= ~(1 << 6);
-	pci_write_config8(dev, 0x43, reg8);
-
 	/* Additional programming steps */
 	reg32 = pci_read_config32(dev, 0xc4);
 	reg32 |= (1 << 24);
@@ -138,12 +134,17 @@ static void hda_init(struct device *dev)
 static void hda_enable(struct device *dev)
 {
 	u32 reg32;
+	u8 reg8;
+
+	reg8 = pci_read_config8(dev, 0x43);
+	reg8 |= 0x6f;
+	pci_write_config8(dev, 0x43, reg8);
 
 	if (!dev->enabled) {
 		/* Route I/O buffers to ADSP function */
-		reg32 = pci_read_config32(dev, 0x42);
-		reg32 |= (1 << 7) | (1 << 6);
-		pci_write_config32(dev, 0x42, reg32);
+		reg8 = pci_read_config8(dev, 0x42);
+		reg8 |= (1 << 7) | (1 << 6);
+		pci_write_config8(dev, 0x42, reg8);
 
 		printk(BIOS_INFO, "HDA disabled, I/O buffers routed to ADSP\n");