From mboxrd@z Thu Jan  1 00:00:00 1970
From: msalter@redhat.com (Mark Salter)
Date: Tue, 16 Feb 2016 14:11:43 -0500
Subject: [PATCH v3 0/5] ACPI: parse the SPCR table
In-Reply-To: <1455559532-8305-1-git-send-email-aleksey.makarov@linaro.org>
References: <1455559532-8305-1-git-send-email-aleksey.makarov@linaro.org>
Message-ID: <1455649903.5681.6.camel@redhat.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Mon, 2016-02-15 at 21:05 +0300, Aleksey Makarov wrote:
> This patchset is based on the patchset by Leif Lindholm [1]
> 
> 'ARM Server Base Boot Requirements' [2] mentions SPCR (Serial Port
> Console Redirection Table) [3] as a mandatory ACPI table that
> specifies the configuration of serial console.
> 
> SPCR support is included in QEMU's ARM mach-virt since 2.4 release.
> 
> Introduce a new function acpi_console_check().? At the uart port
> registration, this function checks if the ACPI SPCR table specifies
> its argument of type struct uart_port to be a console
> and if so calls add_preferred_console().
> 
> Use SPCR to tell if SBSA serial driver should use 32-bit access to registers.
> 
> To be able to access SPCR table each time any console is registered
> change __init to __ref for early_acpi_os_unmap_memory().
> 
> The patchset should be applied to tty-next.

On Mustang, m400, and Seattle:

Tested-by: Mark Salter <msalter@redhat.com>