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From: Eddie James <eajames@linux.ibm.com>
To: openbmc@lists.ozlabs.org
Cc: Andrew Geissler <geisonator@yahoo.com>
Subject: [PATCH linux dev-5.10 04/14] fsi: run clock at 100MHz
Date: Wed, 11 Aug 2021 10:42:22 -0500	[thread overview]
Message-ID: <20210811154232.12649-5-eajames@linux.ibm.com> (raw)
In-Reply-To: <20210811154232.12649-1-eajames@linux.ibm.com>

From: Andrew Geissler <geisonator@yahoo.com>

This is a workaround requested by bringup team to see if some of the
instabilities being seen in the lab clear up.

This should not be upstreamed until the hardware team gets some more
data on the issue.

Signed-off-by: Andrew Geissler <geisonator@yahoo.com>
---
 drivers/fsi/fsi-master-aspeed.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/fsi/fsi-master-aspeed.c b/drivers/fsi/fsi-master-aspeed.c
index 8606e55c1721..12d36ede6e4b 100644
--- a/drivers/fsi/fsi-master-aspeed.c
+++ b/drivers/fsi/fsi-master-aspeed.c
@@ -87,7 +87,8 @@ static const u32 fsi_base = 0xa0000000;
 #define FSI_LINK_ENABLE_SETUP_TIME	10	/* in mS */
 
 /* Run the bus at maximum speed by default */
-#define FSI_DIVISOR_DEFAULT            1
+/* TODO - Run at 100MHz for now to help hw bringup debug */
+#define FSI_DIVISOR_DEFAULT            2
 #define FSI_DIVISOR_CABLED             2
 static u16 aspeed_fsi_divisor = FSI_DIVISOR_DEFAULT;
 module_param_named(bus_div,aspeed_fsi_divisor, ushort, 0);
-- 
2.27.0


  parent reply	other threads:[~2021-08-11 15:44 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-11 15:42 [PATCH linux dev-5.10 00/14] Rainier and Everest system fixes Eddie James
2021-08-11 15:42 ` [PATCH linux dev-5.10 01/14] i2c: Allow throttling of transfers to client devices Eddie James
2021-08-11 15:42 ` [PATCH linux dev-5.10 02/14] pmbus: (ucd9000) Throttle SMBus transfers to avoid poor behaviour Eddie James
2021-08-11 15:42 ` [PATCH linux dev-5.10 03/14] ucd9000: Add a throttle delay attribute in debugfs Eddie James
2021-08-11 15:42 ` Eddie James [this message]
2021-08-11 15:42 ` [PATCH linux dev-5.10 05/14] pmbus: (core) Add a one-shot retry in pmbus_set_page() Eddie James
2021-08-11 15:42 ` [PATCH linux dev-5.10 06/14] pmbus: (max31785) Add a local pmbus_set_page() implementation Eddie James
2021-08-11 16:13   ` Matthew Barth
2021-08-11 15:42 ` [PATCH linux dev-5.10 07/14] pmbus: (max31785) Retry enabling fans after writing MFR_FAN_CONFIG Eddie James
2021-08-11 16:14   ` Matthew Barth
2021-08-11 15:42 ` [PATCH linux dev-5.10 08/14] ARM: dts: aspeed: Rainier: Add fan controller properties Eddie James
2021-08-11 16:14   ` Matthew Barth
2021-08-11 15:42 ` [PATCH linux dev-5.10 09/14] ARM: dts: aspeed: Everest: " Eddie James
2021-08-11 16:15   ` Matthew Barth
2021-08-11 15:42 ` [PATCH linux dev-5.10 10/14] ARM: dts: aspeed: Rainier 4U: Delete fan dual-tach properties Eddie James
2021-08-11 16:17   ` Matthew Barth
2021-08-11 15:42 ` [PATCH linux dev-5.10 11/14] ARM: dts: aspeed: Add Rainier 2U and 4U device trees for pass 1 hardware Eddie James
2021-08-11 15:42 ` [PATCH linux dev-5.10 12/14] fsi: sbefifo: Increase command timeouts to 30 seconds Eddie James
2021-08-11 15:42 ` [PATCH linux dev-5.10 13/14] fsi: occ: Add dynamic debug to dump command and response Eddie James
2021-08-11 15:42 ` [PATCH linux dev-5.10 14/14] fsi: sbefifo: Use interruptible mutex locking Eddie James

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