From: Baruch Siach <baruch@tkos.co.il>
To: u-boot@lists.denx.de
Subject: [PATCH v5 05/12] arm: mvebu: clearfog: Add option for 2.5 Gbps SFP
Date: Mon, 23 Mar 2020 11:33:47 +0200 [thread overview]
Message-ID: <874kufh0uc.fsf@tarshish> (raw)
In-Reply-To: <7b065e13-4bc4-45fb-ea61-6a0b8f588a81@denx.de>
Hi Stefan,
On Mon, Mar 23 2020, Stefan Roese wrote:
> On 27.01.20 21:01, Joel Johnson wrote:
>> While newer Linux kernels provide autoconfiguration of SFP, provide
>> an option for setting in U-Boot Kconfig for use prior to booting.
>>
>> Signed-off-by: Joel Johnson <mrjoel@lixil.net>
>>
>> ---
>>
>> v2 changes:
>> - fixed help indentation
>> v3 changes:
>> - none
>> v4 changes:
>> - adjust static SerDes configuration at runtime instead of #ifdef
>> v5 changes:
>> - make independent of runtime detection
>>
>> ---
>> board/solidrun/clearfog/Kconfig | 7 +++++++
>> board/solidrun/clearfog/clearfog.c | 5 +++++
>> 2 files changed, 12 insertions(+)
>>
>> diff --git a/board/solidrun/clearfog/Kconfig b/board/solidrun/clearfog/Kconfig
>> index 936d5918f8..c910e17093 100644
>> --- a/board/solidrun/clearfog/Kconfig
>> +++ b/board/solidrun/clearfog/Kconfig
>> @@ -15,4 +15,11 @@ config TARGET_CLEARFOG_BASE
>> detection via additional EEPROM hardware. This option enables selecting
>> the Base variant for older hardware revisions.
>> +config CLEARFOG_SFP_25GB
>> + bool "Enable 2.5 Gbps mode for SFP"
>> + help
>> + Set the SFP module connection to support 2.5 Gbps transfer speed for the
>> + SGMII connection (requires a supporting SFP). By default, transfer speed
>> + of 1.25 Gbps is used, suitable for a more common 1 Gbps SFP module.
>> +
>> endmenu
>> diff --git a/board/solidrun/clearfog/clearfog.c b/board/solidrun/clearfog/clearfog.c
>> index c873d00905..064ce4e520 100644
>> --- a/board/solidrun/clearfog/clearfog.c
>> +++ b/board/solidrun/clearfog/clearfog.c
>> @@ -63,6 +63,11 @@ int hws_board_topology_load(struct serdes_map **serdes_map_array, u8 *count)
>> {
>> cf_read_tlv_data();
>> + /* Apply build configuration options before runtime configuration */
>> + if (IS_ENABLED(CONFIG_CLEARFOG_SFP_25GB))
>> + board_serdes_map[5].serdes_speed = SERDES_SPEED_3_125_GBPS;
>
> Just checking: Your option is for 2.5 gbps and you configure here to
> 3.125 gpbs. Is this intended?
This is intended. Serdes encoding is 8b/10b. So for 2.5Gbps you need
serdes rate of 3.125Gbps. For 1Gbps we already set 1.25Gpbs serdes rate
(SERDES_SPEED_1_25_GBPS) in board_serdes_map[].
baruch
--
http://baruch.siach.name/blog/ ~. .~ Tk Open Systems
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- baruch at tkos.co.il - tel: +972.52.368.4656, http://www.tkos.co.il -
next prev parent reply other threads:[~2020-03-23 9:33 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-27 20:01 [PATCH v5 00/12] ClearFog Base static variant support Joel Johnson
2020-01-27 20:01 ` [PATCH v5 01/12] arm: mvebu: fix SerDes table alignment Joel Johnson
2020-03-23 9:04 ` Stefan Roese
2020-01-27 20:01 ` [PATCH v5 02/12] arm: mvebu: solidrun: remove hardcoded DTS MAC address Joel Johnson
2020-03-23 9:05 ` Stefan Roese
2020-01-27 20:01 ` [PATCH v5 03/12] arm: mvebu: clearfog: use Pro name by default Joel Johnson
2020-03-23 9:07 ` Stefan Roese
2020-01-27 20:01 ` [PATCH v5 04/12] arm: mvebu: clearfog: initial ClearFog Base variant Joel Johnson
2020-03-23 9:11 ` Stefan Roese
2020-03-23 15:27 ` Joel Johnson
2020-01-27 20:01 ` [PATCH v5 05/12] arm: mvebu: clearfog: Add option for 2.5 Gbps SFP Joel Johnson
2020-03-23 9:14 ` Stefan Roese
2020-03-23 9:33 ` Baruch Siach [this message]
2020-03-23 9:46 ` Stefan Roese
2020-01-27 20:01 ` [PATCH v5 06/12] arm: mvebu: clearfog: Add SATA mode flags Joel Johnson
2020-01-28 6:06 ` Baruch Siach
2020-01-28 6:34 ` Joel Johnson
2020-03-23 9:18 ` Stefan Roese
2020-01-27 20:01 ` [PATCH v5 07/12] arm: mvebu: clearfog: Unify DT selection paths Joel Johnson
2020-03-23 9:19 ` Stefan Roese
2020-01-27 20:01 ` [PATCH v5 08/12] arm: mvebu: clearfog: add SPI offsets Joel Johnson
2020-03-23 9:21 ` Stefan Roese
2020-01-27 20:01 ` [PATCH v5 09/12] arm: mvebu: enable working default boot support Joel Johnson
2020-03-23 9:22 ` Stefan Roese
2020-01-27 20:01 ` [PATCH v5 10/12] arm: mvebu: clearfog: move ENV params to Kconfig Joel Johnson
2020-03-23 9:23 ` Stefan Roese
2020-01-27 20:01 ` [PATCH v5 11/12] arm: mvebu: clearfog: don't always use SPL MMC Joel Johnson
2020-03-23 9:23 ` Stefan Roese
2020-01-27 20:01 ` [PATCH v5 12/12] arm: mvebu: clearfog: Use Pro DT by default Joel Johnson
2020-01-28 6:17 ` Baruch Siach
2020-01-28 6:49 ` Joel Johnson
2020-03-23 9:26 ` Stefan Roese
2020-03-22 18:46 ` [PATCH v5 00/12] ClearFog Base static variant support Joel Johnson
2020-03-23 9:03 ` Stefan Roese
2020-03-23 16:59 ` Baruch Siach
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