Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753193AbcLFR7E (ORCPT ); Tue, 6 Dec 2016 12:59:04 -0500 Received: from mail-wj0-f181.google.com ([209.85.210.181]:35647 "EHLO mail-wj0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752348AbcLFR67 (ORCPT ); Tue, 6 Dec 2016 12:58:59 -0500 From: Aleksey Makarov To: "Rafael J . Wysocki" Cc: linux-acpi@vger.kernel.org, linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org, Greg Kroah-Hartman , Russell King , Peter Hurley , Aleksey Makarov , Jon Masters , Mark Salter , Duc Dang , Rob Herring , Robert Moore , Lv Zheng , "Rafael J. Wysocki" , Len Brown , devel@acpica.org Subject: [RFC v2 3/4] ACPI: DBG2: add 16550 UART with 32-bit access Date: Tue, 6 Dec 2016 23:58:28 +0600 Message-Id: <20161206175830.6989-4-aleksey.makarov@linaro.org> X-Mailer: git-send-email 2.10.2 In-Reply-To: <20161206175830.6989-1-aleksey.makarov@linaro.org> References: <20161206175830.6989-1-aleksey.makarov@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1086 Lines: 29 It was suggested to add a new Microsoft Debug Port Table 2 (DBG2) (the table used to enumerate the various subtypes of serial port covered by the SPCR) 16550 UART subtype that may be needed for some additional platforms, such as those based upon AppliedMicro X-Gene ARMv8 SoCs. This new subtype would be 16550-compatible with 32-bit access. There already exists 32-bit variant ACPI_DBG2_ARM_SBSA_32BIT of SBSA console ACPI_DBG2_ARM_SBSA_GENERIC. This patch introduces it to Linux kernel. Signed-off-by: Aleksey Makarov --- include/acpi/actbl2.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h index c93dbad..f219b04 100644 --- a/include/acpi/actbl2.h +++ b/include/acpi/actbl2.h @@ -371,6 +371,7 @@ struct acpi_dbg2_device { #define ACPI_DBG2_16550_COMPATIBLE 0x0000 #define ACPI_DBG2_16550_SUBSET 0x0001 +#define ACPI_DBG2_16550_32BIT 0x0002 #define ACPI_DBG2_ARM_PL011 0x0003 #define ACPI_DBG2_ARM_SBSA_32BIT 0x000D #define ACPI_DBG2_ARM_SBSA_GENERIC 0x000E -- 2.10.2