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From: Marcin Wojtas <mw@semihalf.com>
To: edk2-devel@lists.01.org
Cc: leif.lindholm@linaro.org, ard.biesheuvel@linaro.org,
	nadavh@marvell.com, neta@marvell.com, kostap@marvell.com,
	jinghua@marvell.com, mw@semihalf.com, jsd@semihalf.com
Subject: [platforms: PATCH 10/10] Marvell/Drivers: XenonDxe: Do not modify FIFO default values
Date: Thu, 26 Oct 2017 03:19:37 +0200	[thread overview]
Message-ID: <1508980777-29006-11-git-send-email-mw@semihalf.com> (raw)
In-Reply-To: <1508980777-29006-1-git-send-email-mw@semihalf.com>

Changing controller's FIFO default values is not necessary and
possibly can cause instabilities, when using some devices.
Disable the modification and rely on initial settings.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Marcin Wojtas <mw@semihalf.com>
---
 Platform/Marvell/Drivers/SdMmc/XenonDxe/XenonSdhci.c | 16 ----------------
 1 file changed, 16 deletions(-)

diff --git a/Platform/Marvell/Drivers/SdMmc/XenonDxe/XenonSdhci.c b/Platform/Marvell/Drivers/SdMmc/XenonDxe/XenonSdhci.c
index 31f207e..6bbe5bc 100755
--- a/Platform/Marvell/Drivers/SdMmc/XenonDxe/XenonSdhci.c
+++ b/Platform/Marvell/Drivers/SdMmc/XenonDxe/XenonSdhci.c
@@ -44,20 +44,6 @@ XenonReadVersion (
   SdMmcHcRwMmio (PciIo, SD_BAR_INDEX, SD_MMC_HC_CTRL_VER, TRUE, SDHC_REG_SIZE_2B, ControllerVersion);
 }
 
-STATIC
-VOID
-XenonSetFifo (
-  IN EFI_PCI_IO_PROTOCOL   *PciIo
-  )
-{
-  UINTN Data;
-
-  // Set FIFO_RTC, FIFO_WTC, FIFO_CS and FIFO_PDLVMC
-  Data = SDHC_SLOT_FIFO_DEFAULT_CONFIG;
-
-  SdMmcHcRwMmio (PciIo, SD_BAR_INDEX, SDHC_SLOT_FIFO_CTRL, FALSE, SDHC_REG_SIZE_4B, &Data);
-}
-
 // Auto Clock Gating
 STATIC
 VOID
@@ -634,8 +620,6 @@ XenonInit (
   // Read XENON version
   XenonReadVersion (PciIo, &Private->ControllerVersion);
 
-  XenonSetFifo (PciIo);
-
   // Disable auto clock generator
   XenonSetAcg (PciIo, FALSE);
 
-- 
2.7.4



  parent reply	other threads:[~2017-10-26  1:16 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-26  1:19 [platforms: PATCH 00/10] Armada 7k/8k - misc improvements pt.2 Marcin Wojtas
2017-10-26  1:19 ` [platforms: PATCH 01/10] Marvell/Drivers: MvI2cDxe: Abort transaction immediately upon fail Marcin Wojtas
2017-10-26 12:51   ` Leif Lindholm
2017-10-26 13:19     ` Marcin Wojtas
2017-10-26 13:54       ` Leif Lindholm
2017-10-26 13:55         ` Marcin Wojtas
2017-10-26  1:19 ` [platforms: PATCH 02/10] Marvell/Drivers: MvI2cDxe: Fix returning status in MvI2cStartRequest Marcin Wojtas
2017-10-26 13:11   ` Leif Lindholm
2017-10-26 13:22     ` Marcin Wojtas
2017-10-26 13:55       ` Leif Lindholm
2017-10-26  1:19 ` [platforms: PATCH 03/10] Marvell/Drivers: MvI2cDxe: Reduce bus occupation time Marcin Wojtas
2017-10-26 13:13   ` Leif Lindholm
2017-10-26  1:19 ` [platforms: PATCH 04/10] Marvell/Library: MppLib: Prevent overwriting PCD values Marcin Wojtas
2017-10-26 13:15   ` Leif Lindholm
2017-10-26  1:19 ` [platforms: PATCH 05/10] Marvell/Library: MppLib: Disable the stack protector Marcin Wojtas
2017-10-26 13:26   ` Leif Lindholm
2017-10-26 13:29     ` Ard Biesheuvel
2017-10-26 13:57       ` Leif Lindholm
2017-10-26  1:19 ` [platforms: PATCH 06/10] Marvell/Library: MppLib: Take 0xFF placeholders into account Marcin Wojtas
2017-10-26 13:30   ` Leif Lindholm
2017-10-26  1:19 ` [platforms: PATCH 07/10] Marvell/Drivers: Pp2Dxe: Change settings for the always-up link Marcin Wojtas
2017-10-26 13:38   ` Leif Lindholm
2017-10-26  1:19 ` [platforms: PATCH 08/10] Marvell/Drivers: XenonDxe: Fix UHS signalling mode setting Marcin Wojtas
2017-10-26 13:41   ` Leif Lindholm
2017-10-26  1:19 ` [platforms: PATCH 09/10] Marvell/Drivers: XenonDxe: Fix base clock frequency Marcin Wojtas
2017-10-26 13:46   ` Leif Lindholm
2017-10-26 13:54     ` Marcin Wojtas
2017-10-26 13:55       ` Ard Biesheuvel
2017-10-26 13:59         ` Marcin Wojtas
2017-10-26 14:02       ` Leif Lindholm
2017-10-26 14:29         ` Marcin Wojtas
2017-10-26 14:52           ` Leif Lindholm
2017-10-26 15:07             ` Marcin Wojtas
2017-10-26  1:19 ` Marcin Wojtas [this message]
2017-10-26 13:47   ` [platforms: PATCH 10/10] Marvell/Drivers: XenonDxe: Do not modify FIFO default values Leif Lindholm

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