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From: "Pali Rohár" <pali@kernel.org>
To: u-boot@lists.denx.de
Subject: [PATCH] arm: mvebu: Espressobin: Set the maximum slave SPI speed to 40MHz
Date: Wed, 27 Jan 2021 17:12:00 +0100	[thread overview]
Message-ID: <20210127161200.1317-1-pali@kernel.org> (raw)

From: Konstantin Porotchkin <kostap@marvell.com>

While the SPI controller speed is defined by DTS, the maximum
slave speed (connected devices) is limited by the pre-defined
configuration value CONFIG_SF_DEFAULT_SPEED to 1MHz
This patch increases this maximum SPI slave device speed to 40MHz

Change-Id: I0d1239bd8a2061c66725c2c227c1e1f49c92c29e
Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
Reviewed-on: http://vgitil04.il.marvell.com:8080/59516
Tested-by: iSoC Platform CI <ykjenk@marvell.com>
Reviewed-by: Igal Liberman <igall@marvell.com>
[pali: Set CONFIG_SF_DEFAULT_SPEED via defconfig]
Signed-off-by: Pali Roh?r <pali@kernel.org>
---
 configs/mvebu_espressobin-88f3720_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/configs/mvebu_espressobin-88f3720_defconfig b/configs/mvebu_espressobin-88f3720_defconfig
index 8a859cba2e..4956199ccd 100644
--- a/configs/mvebu_espressobin-88f3720_defconfig
+++ b/configs/mvebu_espressobin-88f3720_defconfig
@@ -54,6 +54,7 @@ CONFIG_MMC_SDHCI_SDMA=y
 CONFIG_MMC_SDHCI_XENON=y
 CONFIG_MTD=y
 CONFIG_SF_DEFAULT_MODE=0
+CONFIG_SF_DEFAULT_SPEED=40000000
 CONFIG_SPI_FLASH_GIGADEVICE=y
 CONFIG_SPI_FLASH_ISSI=y
 CONFIG_SPI_FLASH_MACRONIX=y
-- 
2.20.1

             reply	other threads:[~2021-01-27 16:12 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-27 16:12 Pali Rohár [this message]
2021-02-02 14:56 ` [PATCH] arm: mvebu: Espressobin: Set the maximum slave SPI speed to 40MHz Stefan Roese
2021-02-08 11:39 ` Stefan Roese

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