hayato: Modify HS Detector threshold of PS8743 setting value

Modify HS detector threshold setting (0x3C) to 0x60 for USB-C C1 port
signal quality.

BUG=b:177980418
BRANCH=asurada
TEST=manual
Run command "ectool i2cread 8 4 0x20 0x3c" to check register value.

Signed-off-by: Michael5 Chen1 <michael5_chen1@pegatron.corp-partner.google.com>
Change-Id: I97b6bb16e7c5298ff42e35d936e0f9e60ec3b730
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2845564
Reviewed-by: Ting Shen <phoenixshen@chromium.org>

5 files changed, 34 insertions, 14 deletions

diff --git a/baseboard/asurada/baseboard.c b/baseboard/asurada/baseboard.c
index 4943aedc9d..edefec3ff3 100644
--- a/baseboard/asurada/baseboard.c
+++ b/baseboard/asurada/baseboard.c
@@ -64,8 +64,6 @@ static void x_ec_interrupt(enum gpio_signal signal);
 #define CPRINTS(format, args...) cprints(CC_SYSTEM, format, ## args)
 #define CPRINTF(format, args...) cprintf(CC_SYSTEM, format, ## args)
 
-static enum board_sub_board board_get_sub_board(void);
-
 /* Wake-up pins for hibernate */
 enum gpio_signal hibernate_wake_pins[] = {
 	GPIO_AC_PRESENT,
@@ -192,7 +190,7 @@ static void ppc_interrupt(enum gpio_signal signal)
 
 /* Sub-board */
 
-static enum board_sub_board board_get_sub_board(void)
+enum board_sub_board board_get_sub_board(void)
 {
 	static enum board_sub_board sub = SUB_BOARD_NONE;
 
@@ -259,17 +257,6 @@ const int usb_port_enable[] = {
 };
 BUILD_ASSERT(ARRAY_SIZE(usb_port_enable) == USB_PORT_COUNT);
 
-/* USB Mux */
-
-void board_usb_mux_init(void)
-{
-	if (board_get_sub_board() == SUB_BOARD_TYPEC)
-		ps8743_tune_usb_eq(&usb_muxes[1],
-				   PS8743_USB_EQ_TX_12_8_DB,
-				   PS8743_USB_EQ_RX_12_8_DB);
-}
-DECLARE_HOOK(HOOK_INIT, board_usb_mux_init, HOOK_PRIO_INIT_I2C + 1);
-
 static int board_ps8743_mux_set(const struct usb_mux *me,
 				mux_state_t mux_state)
 {
diff --git a/baseboard/asurada/baseboard.h b/baseboard/asurada/baseboard.h
index 649fccd773..9045b0aaa6 100644
--- a/baseboard/asurada/baseboard.h
+++ b/baseboard/asurada/baseboard.h
@@ -211,5 +211,6 @@ enum board_sub_board {
 
 int board_get_version(void);
 void board_reset_pd_mcu(void);
+enum board_sub_board board_get_sub_board(void);
 #endif /* !__ASSEMBLER__ */
 #endif /* __CROS_EC_BASEBOARD_H */
diff --git a/board/asurada/board.c b/board/asurada/board.c
index a73bb246b1..5f6218299a 100644
--- a/board/asurada/board.c
+++ b/board/asurada/board.c
@@ -350,3 +350,15 @@ __override int syv682x_board_is_syv682c(int port)
 	return board_get_version() > 2;
 }
 
+void board_usb_mux_init(void)
+{
+	if (board_get_sub_board() == SUB_BOARD_TYPEC) {
+		ps8743_tune_usb_eq(&usb_muxes[1],
+				   PS8743_USB_EQ_TX_12_8_DB,
+				   PS8743_USB_EQ_RX_12_8_DB);
+		ps8743_write(&usb_muxes[1],
+				   PS8743_REG_HS_DET_THRESHOLD,
+				   PS8743_USB_HS_THRESH_NEG_10);
+	}
+}
+DECLARE_HOOK(HOOK_INIT, board_usb_mux_init, HOOK_PRIO_INIT_I2C + 1);
diff --git a/board/spherion/board.c b/board/spherion/board.c
index ae1b932ff6..670eb91dd9 100644
--- a/board/spherion/board.c
+++ b/board/spherion/board.c
@@ -103,3 +103,12 @@ static void kb_backlight_disable(void)
 	gpio_set_level(GPIO_EC_KB_BL_EN, 0);
 }
 DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, kb_backlight_disable, HOOK_PRIO_DEFAULT);
+
+void board_usb_mux_init(void)
+{
+	if (board_get_sub_board() == SUB_BOARD_TYPEC)
+		ps8743_tune_usb_eq(&usb_muxes[1],
+				   PS8743_USB_EQ_TX_12_8_DB,
+				   PS8743_USB_EQ_RX_12_8_DB);
+}
+DECLARE_HOOK(HOOK_INIT, board_usb_mux_init, HOOK_PRIO_INIT_I2C + 1);
diff --git a/driver/usb_mux/ps8743.h b/driver/usb_mux/ps8743.h
index 70a47bdb9b..a520f970ac 100644
--- a/driver/usb_mux/ps8743.h
+++ b/driver/usb_mux/ps8743.h
@@ -75,6 +75,17 @@
 #define PS8743_USB_EQ_RX_21_3_DB 0xd0
 #define PS8743_USB_EQ_RX_22_2_DB 0xe0
 
+/* USB High Speed Signal Detector thershold adjustment */
+#define PS8743_REG_HS_DET_THRESHOLD  0x3c
+#define PS8743_USB_HS_THRESH_DEFAULT 0x00
+#define PS8743_USB_HS_THRESH_POS_10  0x20
+#define PS8743_USB_HS_THRESH_POS_33  0x40
+#define PS8743_USB_HS_THRESH_NEG_10  0x60
+#define PS8743_USB_HS_THRESH_NEG_25  0x80
+#define PS8743_USB_HS_THRESH_POS_25  0xa0
+#define PS8743_USB_HS_THRESH_NEG_45  0xc0
+#define PS8743_USB_HS_THRESH_NEG_35  0xe0
+
 int ps8743_tune_usb_eq(const struct usb_mux *me, uint8_t tx, uint8_t rx);
 int ps8743_write(const struct usb_mux *me, uint8_t reg, uint8_t val);
 int ps8743_read(const struct usb_mux *me, uint8_t reg, int *val);