broadwell: ACPI, romstage, and other updates

broadwell: Add romstage usbdebug support
Reviewed-on: https://chromium-review.googlesource.com/199412
(cherry picked from commit 1050e7d3be6ec1e4fe5aa2df408f4bb6d33a42b5)

broadwell: Add romstage code to configure PCH UART for console
Reviewed-on: https://chromium-review.googlesource.com/199807
(cherry picked from commit ecebda4eb5d6fe58473d25c2898ba1a2eac0f39a)

broadwell: Expand the PCI device convenience macros
Reviewed-on: https://chromium-review.googlesource.com/199891
(cherry picked from commit f8c54c70f136cd2cb8f977bc25661974d7e529ad)

broadwell: Add ramstage driver for ADSP
Reviewed-on: https://chromium-review.googlesource.com/199892
(cherry picked from commit e8e986b0ba52bbfc9923d71009fbd31e749ca43f)

broadwell: Update ACPI devices
Reviewed-on: https://chromium-review.googlesource.com/201080
(cherry picked from commit 2446b35578eb36e0009415bec340059135751549)

broadwell: Reserve DPR region
Reviewed-on: https://chromium-review.googlesource.com/201081
(cherry picked from commit 8ecd9d2096db2bded6f27ef6ee9a9b39ce2dfec6)

broadwell: Remove old pei_data and add cpu function for romstage
Reviewed-on: https://chromium-review.googlesource.com/201690
(cherry picked from commit d206c9cdd69519d502a90bb0595f0e3a7cb50274)

broadwell: Fixes for graphics without executing VBIOS
Reviewed-on: https://chromium-review.googlesource.com/202356
(cherry picked from commit 0c031df1ce92c875e95ddfd3f026f649c342c7fa)

broadwell: Fix compilation failure when loglevel is lowered
Reviewed-on: https://chromium-review.googlesource.com/202357
(cherry picked from commit 708ce78b2bfae5664b1238e17b086c88cac55bdc)

broadwell: Disable GPIO controller interrupt
Reviewed-on: https://chromium-review.googlesource.com/203645
(cherry picked from commit 2d17e98eded5958258ba5c0abf600284d8d03af9)

broadwell: Add support for E0 stepping
Reviewed-on: https://chromium-review.googlesource.com/205160
(cherry picked from commit 802e9d371418cc7a7fc7af131d7e5dda0ae5b273)

broadwell: misc updates for CPU driver
Reviewed-on: https://chromium-review.googlesource.com/205161
(cherry picked from commit ea1d403817ee193648f2c119fd45894e32e57e97)

broadwell: Read power state earlier and store in romstage params
Reviewed-on: https://chromium-review.googlesource.com/208151
(cherry picked from commit b2198d71084ad3c1360a0bfedc46c8dd3825bd0e)

broadwell: Add parameters to pei_data structure
Reviewed-on: https://chromium-review.googlesource.com/208153
(cherry picked from commit 423fbf67e497a907fbc8e12caf2929d4951858af)

broadwell: Move platform report output after power state is read
Reviewed-on: https://chromium-review.googlesource.com/208213
(cherry picked from commit acedf4146bf9377133433046dae1fa9c8bc69d78)

Squashed 15 commits for broadwell support.

Change-Id: I87e320d3d5376b84dd9c146b0b833e5ce53244aa
Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com>
Reviewed-on: http://review.coreboot.org/6982
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>

1 files changed, 25 insertions, 0 deletions

diff --git a/src/soc/intel/broadwell/hda.c b/src/soc/intel/broadwell/hda.c
index 9a9225b479..80caa2c2eb 100644
--- a/src/soc/intel/broadwell/hda.c
+++ b/src/soc/intel/broadwell/hda.c
@@ -27,6 +27,7 @@
 #include <arch/io.h>
 #include <delay.h>
 #include <soc/intel/common/hda_verb.h>
+#include <broadwell/pch.h>
 #include <broadwell/ramstage.h>
 #include <broadwell/rcba.h>
 
@@ -134,11 +135,35 @@ static void hda_init(struct device *dev)
 	}
 }
 
+static void hda_enable(struct device *dev)
+{
+	u32 reg32;
+
+	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);
+
+		printk(BIOS_INFO, "HDA disabled, I/O buffers routed to ADSP\n");
+
+		/* Ensure memory, io, and bus master are all disabled */
+		reg32 = pci_read_config32(dev, PCI_COMMAND);
+		reg32 &= ~(PCI_COMMAND_MASTER |
+			   PCI_COMMAND_MEMORY | PCI_COMMAND_IO);
+		pci_write_config32(dev, PCI_COMMAND, reg32);
+
+		/* Disable this device */
+		pch_disable_devfn(dev);
+	}
+}
+
 static struct device_operations hda_ops = {
 	.read_resources		= &pci_dev_read_resources,
 	.set_resources		= &pci_dev_set_resources,
 	.enable_resources	= &pci_dev_enable_resources,
 	.init			= &hda_init,
+	.enable			= &hda_enable,
 	.ops_pci		= &broadwell_pci_ops,
 };