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authorDuncan Laurie <dlaurie@google.com>2018-05-07 15:33:18 -0700
committerPatrick Georgi <pgeorgi@google.com>2018-05-18 12:23:04 +0000
commitbf713b04b6f04ebf91eea40867a5354c958182f4 (patch)
tree26c5cd230df30c7645420eeb8f7ca476e65b15b1 /src
parent4721f43390ec732cb2ef82911da098779f4db0c4 (diff)
downloadcoreboot-bf713b04b6f04ebf91eea40867a5354c958182f4.tar.xz
soc/intel: Add support for USB ACPI code generation
To support generating USB devices in ACPI the platform needs to know how to determine a device name for each USB port, and for any root hubs that may be present. Recent Intel platforms route all ports to an XHCI controller through a root hub. This is supported by considering the root hub to be USB port type 0, the USB 2.0 ports to be type 2, and the USB 3.0 ports to be type 3. This was tested with a Kaby Lake platform by adding entries to the devicetree and checking the resulting SSDT. Change-Id: I527a63bdc64f9243fe57487363ee6d5f60be84ca Signed-off-by: Duncan Laurie <dlaurie@google.com> Reviewed-on: https://review.coreboot.org/26174 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'src')
-rw-r--r--src/soc/intel/apollolake/acpi/xhci.asl24
-rw-r--r--src/soc/intel/apollolake/chip.c36
-rw-r--r--src/soc/intel/common/block/include/intelblocks/acpi.h3
-rw-r--r--src/soc/intel/common/block/xhci/xhci.c3
-rw-r--r--src/soc/intel/skylake/acpi.c35
5 files changed, 100 insertions, 1 deletions
diff --git a/src/soc/intel/apollolake/acpi/xhci.asl b/src/soc/intel/apollolake/acpi/xhci.asl
index c07c7079ad..8222cb5ec4 100644
--- a/src/soc/intel/apollolake/acpi/xhci.asl
+++ b/src/soc/intel/apollolake/acpi/xhci.asl
@@ -28,4 +28,28 @@ Device (XHC1) {
{
Return (0xF)
}
+
+ Device (RHUB)
+ {
+ /* Root Hub */
+ Name (_ADR, Zero)
+
+ /* USB2 */
+ Device (HS01) { Name (_ADR, 1) }
+ Device (HS02) { Name (_ADR, 2) }
+ Device (HS03) { Name (_ADR, 3) }
+ Device (HS04) { Name (_ADR, 4) }
+ Device (HS05) { Name (_ADR, 5) }
+ Device (HS06) { Name (_ADR, 6) }
+ Device (HS07) { Name (_ADR, 7) }
+ Device (HS08) { Name (_ADR, 8) }
+
+ /* USB3 */
+ Device (SS01) { Name (_ADR, 9) }
+ Device (SS02) { Name (_ADR, 10) }
+ Device (SS03) { Name (_ADR, 11) }
+ Device (SS04) { Name (_ADR, 12) }
+ Device (SS05) { Name (_ADR, 13) }
+ Device (SS06) { Name (_ADR, 14) }
+ }
}
diff --git a/src/soc/intel/apollolake/chip.c b/src/soc/intel/apollolake/chip.c
index f782cc3238..4c8abda7f3 100644
--- a/src/soc/intel/apollolake/chip.c
+++ b/src/soc/intel/apollolake/chip.c
@@ -34,6 +34,7 @@
#include <intelblocks/xdci.h>
#include <fsp/api.h>
#include <fsp/util.h>
+#include <intelblocks/acpi.h>
#include <intelblocks/cpulib.h>
#include <intelblocks/itss.h>
#include <intelblocks/pmclib.h>
@@ -50,11 +51,44 @@
#include "chip.h"
-static const char *soc_acpi_name(const struct device *dev)
+const char *soc_acpi_name(const struct device *dev)
{
if (dev->path.type == DEVICE_PATH_DOMAIN)
return "PCI0";
+ if (dev->path.type == DEVICE_PATH_USB) {
+ switch (dev->path.usb.port_type) {
+ case 0:
+ /* Root Hub */
+ return "RHUB";
+ case 2:
+ /* USB2 ports */
+ switch (dev->path.usb.port_id) {
+ case 0: return "HS01";
+ case 1: return "HS02";
+ case 2: return "HS03";
+ case 3: return "HS04";
+ case 4: return "HS05";
+ case 5: return "HS06";
+ case 6: return "HS07";
+ case 7: return "HS08";
+ }
+ break;
+ case 3:
+ /* USB3 ports */
+ switch (dev->path.usb.port_id) {
+ case 0: return "SS01";
+ case 1: return "SS02";
+ case 2: return "SS03";
+ case 3: return "SS04";
+ case 4: return "SS05";
+ case 5: return "SS06";
+ }
+ break;
+ }
+ return NULL;
+ }
+
if (dev->path.type != DEVICE_PATH_PCI)
return NULL;
diff --git a/src/soc/intel/common/block/include/intelblocks/acpi.h b/src/soc/intel/common/block/include/intelblocks/acpi.h
index 927da3c214..f58f914757 100644
--- a/src/soc/intel/common/block/include/intelblocks/acpi.h
+++ b/src/soc/intel/common/block/include/intelblocks/acpi.h
@@ -29,6 +29,9 @@ struct chipset_power_state;
/* Forward declare the global nvs structure here */
struct global_nvs_t;
+/* Return ACPI name for this device */
+const char *soc_acpi_name(const struct device *dev);
+
/* Read the scis from soc specific register. Returns int scis value */
uint32_t soc_read_sci_irq_select(void);
diff --git a/src/soc/intel/common/block/xhci/xhci.c b/src/soc/intel/common/block/xhci/xhci.c
index 737c8cfe7e..d76426211c 100644
--- a/src/soc/intel/common/block/xhci/xhci.c
+++ b/src/soc/intel/common/block/xhci/xhci.c
@@ -19,6 +19,7 @@
#include <device/pci.h>
#include <device/pci_ids.h>
#include <arch/io.h>
+#include <intelblocks/acpi.h>
#include <intelblocks/xhci.h>
__weak void soc_xhci_init(struct device *dev) { /* no-op */ }
@@ -29,6 +30,8 @@ static struct device_operations usb_xhci_ops = {
.enable_resources = &pci_dev_enable_resources,
.init = soc_xhci_init,
.ops_pci = &pci_dev_ops_pci,
+ .scan_bus = &scan_usb_bus,
+ .acpi_name = &soc_acpi_name,
};
static const unsigned short pci_device_ids[] = {
diff --git a/src/soc/intel/skylake/acpi.c b/src/soc/intel/skylake/acpi.c
index 914b9d51a3..43487c477e 100644
--- a/src/soc/intel/skylake/acpi.c
+++ b/src/soc/intel/skylake/acpi.c
@@ -717,6 +717,41 @@ const char *soc_acpi_name(const struct device *dev)
if (dev->path.type == DEVICE_PATH_DOMAIN)
return "PCI0";
+ if (dev->path.type == DEVICE_PATH_USB) {
+ switch (dev->path.usb.port_type) {
+ case 0:
+ /* Root Hub */
+ return "RHUB";
+ case 2:
+ /* USB2 ports */
+ switch (dev->path.usb.port_id) {
+ case 0: return "HS01";
+ case 1: return "HS02";
+ case 2: return "HS03";
+ case 3: return "HS04";
+ case 4: return "HS05";
+ case 5: return "HS06";
+ case 6: return "HS07";
+ case 7: return "HS08";
+ case 8: return "HS09";
+ case 9: return "HS10";
+ }
+ break;
+ case 3:
+ /* USB3 ports */
+ switch (dev->path.usb.port_id) {
+ case 0: return "SS01";
+ case 1: return "SS02";
+ case 2: return "SS03";
+ case 3: return "SS04";
+ case 4: return "SS05";
+ case 5: return "SS06";
+ }
+ break;
+ }
+ return NULL;
+ }
+
if (dev->path.type != DEVICE_PATH_PCI)
return NULL;