Message ID | 20170111004257.8817-2-xow@google.com |
---|---|
State | Accepted, archived |
Headers | show |
diff --git a/arch/arm/mach-aspeed/aspeed.c b/arch/arm/mach-aspeed/aspeed.c index e4150c8a5d8d..4bd3680d742d 100644 --- a/arch/arm/mach-aspeed/aspeed.c +++ b/arch/arm/mach-aspeed/aspeed.c @@ -152,6 +152,10 @@ static void __init do_zaius_setup(void) writel(reg | BIT(24) | BIT(22), AST_IO(AST_BASE_SCU | 0x8C)); } + /* Disable GPIO H/AC pulldowns to float 1-wire interface pins */ + reg = readl(AST_IO(AST_BASE_SCU | 0x8C)); + writel(reg | BIT(23), AST_IO(AST_BASE_SCU | 0x8C)); + /* Assert MAC2 PHY hardware reset */ /* Set pin low */ reg = readl(AST_IO(AST_BASE_GPIO | 0x00));
Disable internal pulldown resistors on pins used by the 1-wire interface to thermal sensors. Signed-off-by: Xo Wang <xow@google.com> --- arch/arm/mach-aspeed/aspeed.c | 4 ++++ 1 file changed, 4 insertions(+)