From 669500c514d7a262e7f52a29a8badfaddca4dc75 Mon Sep 17 00:00:00 2001 From: Keith Short Date: Wed, 11 Nov 2020 12:53:51 -0700 Subject: boldar: Enabling sourcing of 4.5A on type-C ports To support USB4, source a total of 4.5A on the type-C ports. This ensures that if the first device requests 3A (15W), the chromebook continues to source 3A even after a second device is connected. BUG=none BRANCH=firmware-volteer-13521.B-master TEST=make buildall Signed-off-by: Keith Short Change-Id: I0d0b003297994cb7a6fc877278ec20d9858a52e4 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2533489 Reviewed-by: Sooraj Govindan Reviewed-by: Abe Levkoy Commit-Queue: Abe Levkoy --- board/boldar/board.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/board/boldar/board.h b/board/boldar/board.h index af4ea3e918..99324296b4 100644 --- a/board/boldar/board.h +++ b/board/boldar/board.h @@ -87,6 +87,12 @@ #define CONFIG_USB_PD_USB4 #define USBC_PORT_C0_BB_RETIMER_I2C_ADDR 0x37 #define USBC_PORT_C1_BB_RETIMER_I2C_ADDR 0x40 +/* + * For USB4, set the total budget for source current to 4.5A so that the first + * connected port is allowed to source 3A while sourcing 1.5A on other type-C + * ports. + */ +#define CONFIG_USB_PD_MAX_TOTAL_SOURCE_CURRENT 4500 /* USB Type A Features */ #define USB_PORT_COUNT 1 -- cgit v1.2.1