From: jeremy.linton@arm•com (Jeremy Linton)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH v3 0/5] ACPI: parse the SPCR table
Date: Thu, 18 Feb 2016 15:15:44 -0600 [thread overview]
Message-ID: <56C63480.5020605@arm.com> (raw)
In-Reply-To: <1455559532-8305-1-git-send-email-aleksey.makarov@linaro.org>
On 02/15/2016 12:05 PM, 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.
(trimming)
This works on the JunoR2 with a new enough firmware to have the SPCR table.
Tested-by: Jeremy Linton <jeremy.linton@arm•com>
prev parent reply other threads:[~2016-02-18 21:15 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-15 18:05 [PATCH v3 0/5] ACPI: parse the SPCR table Aleksey Makarov
2016-02-15 18:05 ` [PATCH v3 1/5] ACPI: change __init to __ref for early_acpi_os_unmap_memory() Aleksey Makarov
2016-02-17 2:44 ` Zheng, Lv
2016-02-17 2:51 ` Zheng, Lv
2016-02-17 13:08 ` Aleksey Makarov
2016-02-18 3:36 ` Zheng, Lv
2016-02-18 22:03 ` Peter Hurley
2016-02-19 2:58 ` Zheng, Lv
2016-02-19 11:02 ` Aleksey Makarov
2016-02-22 2:24 ` Zheng, Lv
2016-02-22 14:58 ` Aleksey Makarov
2016-02-23 0:19 ` Zheng, Lv
2016-02-26 6:39 ` Zheng, Lv
2016-02-26 10:33 ` Aleksey Makarov
2016-02-19 10:42 ` Aleksey Makarov
2016-02-19 15:25 ` Peter Hurley
2016-02-19 17:20 ` Christopher Covington
2016-02-22 5:37 ` Peter Hurley
2016-02-22 14:43 ` Aleksey Makarov
2016-02-22 14:35 ` Aleksey Makarov
2016-03-01 15:24 ` Peter Hurley
2016-02-15 18:05 ` [PATCH v3 2/5] ACPI: parse SPCR and enable matching console Aleksey Makarov
2016-02-18 22:19 ` Peter Hurley
2016-02-19 10:47 ` Aleksey Makarov
2016-02-19 16:13 ` Peter Hurley
2016-02-21 9:42 ` Yury Norov
2016-02-22 15:03 ` Aleksey Makarov
2016-02-15 18:05 ` [PATCH v3 3/5] ACPI: enable ACPI_SPCR_TABLE on ARM64 Aleksey Makarov
2016-02-15 18:05 ` [PATCH v3 4/5] ACPI: add definition of DBG2 subtypes Aleksey Makarov
2016-02-15 18:05 ` [PATCH v3 5/5] serial: pl011: use SPCR to setup 32-bit access Aleksey Makarov
2016-02-16 19:11 ` [PATCH v3 0/5] ACPI: parse the SPCR table Mark Salter
2016-02-17 2:36 ` Christopher Covington
2016-02-18 21:15 ` Jeremy Linton [this message]
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