[coreboot-gerrit] Change in coreboot[master]: soc/mediatek/mt8186: add USB support

[Rex-BC Chen (Code Review)]

Attention is currently required from: Hung-Te Lin.
Rex-BC Chen has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/59251 )

Change subject: soc/mediatek/mt8186: add USB support
......................................................................

soc/mediatek/mt8186: add USB support

1. Enable and setup USB drivers.
2. Pull up to a weak resistor for USB3_HUB_RST_L and we reset
   the hub via GPIO149.

TEST=boot kernel from USB ok
BUG=b:202871018

Signed-off-by: Rex-BC Chen 
Change-Id: Ifcc11d51b0c1e495477957111e6021ef8275f629
---
M src/mainboard/google/corsola/mainboard.c
M src/soc/mediatek/mt8186/Makefile.inc
M src/soc/mediatek/mt8186/include/soc/addressmap.h
A src/soc/mediatek/mt8186/include/soc/usb.h
A src/soc/mediatek/mt8186/usb.c
5 files changed, 58 insertions(+), 2 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/51/59251/1

diff --git a/src/mainboard/google/corsola/mainboard.c b/src/mainboard/google/corsola/mainboard.c
index e6040fa..195ce67 100644
--- a/src/mainboard/google/corsola/mainboard.c
+++ b/src/mainboard/google/corsola/mainboard.c
@@ -1,9 +1,11 @@
 /* SPDX-License-Identifier: GPL-2.0-only */

#include <device/device.h>
+#include <soc/usb.h>

static void mainboard_init(struct device *dev)
 {
+	setup_usb_host();
 }

static void mainboard_enable(struct device *dev)
diff --git a/src/soc/mediatek/mt8186/Makefile.inc b/src/soc/mediatek/mt8186/Makefile.inc
index 2107ab8..37c1b3c 100644
--- a/src/soc/mediatek/mt8186/Makefile.inc
+++ b/src/soc/mediatek/mt8186/Makefile.inc
@@ -37,6 +37,7 @@
 ramstage-y += soc.c
 ramstage-y += ../common/timer.c timer.c
 ramstage-y += ../common/uart.c
+ramstage-y += ../common/usb.c usb.c
 ramstage-y += ../common/wdt.c wdt.c
 ramstage-y += ../common/pmic_wrap.c pmic_wrap.c mt6366.c

diff --git a/src/soc/mediatek/mt8186/include/soc/addressmap.h b/src/soc/mediatek/mt8186/include/soc/addressmap.h
index 28ba369..cabafb6 100644
--- a/src/soc/mediatek/mt8186/include/soc/addressmap.h
+++ b/src/soc/mediatek/mt8186/include/soc/addressmap.h
@@ -64,9 +64,11 @@
    SPI5_BASE			= IO_PHYS + 0x01015000,
    I2C5_BASE			= IO_PHYS + 0x01016000,
    I2C9_BASE			= IO_PHYS + 0x01019000,
-	SSUSB_IPPC_BASE			= IO_PHYS + 0x01203E00,
+	/* Corsola uses USB2 port1 instead of USB2 port0. */
+	SSUSB_IPPC_BASE			= IO_PHYS + 0x01283E00,
    MSDC0_BASE			= IO_PHYS + 0x01230000,
-	SSUSB_SIF_BASE			= IO_PHYS + 0x01CA0000,
+	/* Corsola uses USB2 port1 instead of USB2 port0. */
+	SSUSB_SIF_BASE			= IO_PHYS + 0x01C80300,
    EFUSEC_BASE			= IO_PHYS + 0x01CB0000,
    MIPITX_BASE			= IO_PHYS + 0x01CC0000,
    MSDC0_TOP_BASE			= IO_PHYS + 0x01CD0000,
diff --git a/src/soc/mediatek/mt8186/include/soc/usb.h b/src/soc/mediatek/mt8186/include/soc/usb.h
new file mode 100644
index 0000000..297c8f1
--- /dev/null
+++ b/src/soc/mediatek/mt8186/include/soc/usb.h
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+/*
+ * This file is created based on MT8186 Functional Specification
+ * Chapter number: 5.5
+ */
+
+#ifndef SOC_MEDIATEK_MT8186_USB_H
+#define SOC_MEDIATEK_MT8186_USB_H
+
+#include <soc/usb_common.h>
+
+struct ssusb_sif_port {
+	struct sif_u2_phy_com u2phy;
+	u32 reserved0[64 * 5];
+	struct sif_u3phyd u3phyd;
+	u32 reserved1[64];
+	struct sif_u3phya u3phya;
+	struct sif_u3phya_da u3phya_da;
+	u32 reserved2[64 * 3];
+};
+check_member(ssusb_sif_port, u3phyd, 0x600);
+check_member(ssusb_sif_port, u3phya, 0x800);
+check_member(ssusb_sif_port, u3phya_da, 0x900);
+check_member(ssusb_sif_port, reserved2, 0xa00);
+
+#define USB_PORT_NUMBER 1
+
+#endif
diff --git a/src/soc/mediatek/mt8186/usb.c b/src/soc/mediatek/mt8186/usb.c
new file mode 100644
index 0000000..328dc54
--- /dev/null
+++ b/src/soc/mediatek/mt8186/usb.c
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+/*
+ * This file is created based on MT8186 Functional Specification
+ * Chapter number: 5.5
+ */
+
+#include <device/mmio.h>
+#include <gpio.h>
+#include <soc/gpio.h>
+#include <soc/usb.h>
+
+static void usb3_hub_reset(void)
+{
+	gpio_output(GPIO(PERIPHERAL_EN2), 1);
+}
+
+void mtk_usb_prepare(void)
+{
+	usb3_hub_reset();
+	gpio_output(GPIO(USB_DRVVBUS_P1), 1);
+}