From: Vignesh R <vigneshr@ti.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 4/4] ARM: dts: dra7xx: Update spi-max-frequency for QSPI
Date: Mon, 25 Jul 2016 15:45:47 +0530 [thread overview]
Message-ID: <20160725101547.18503-5-vigneshr@ti.com> (raw)
In-Reply-To: <20160725101547.18503-1-vigneshr@ti.com>
According to AM572x DM SPRS953A, QSPI max bus speed is 76.8MHz.
Therefore update the spi-max-frequency value of QSPI node for DRA74 and
DRA72 evm. This increase flash read speed by ~2MB/s.
Signed-off-by: Vignesh R <vigneshr@ti.com>
---
arch/arm/dts/dra7-evm.dts | 2 +-
arch/arm/dts/dra72-evm.dts | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/dts/dra7-evm.dts b/arch/arm/dts/dra7-evm.dts
index 429b9edc1b2b..8b77a761d211 100644
--- a/arch/arm/dts/dra7-evm.dts
+++ b/arch/arm/dts/dra7-evm.dts
@@ -491,7 +491,7 @@
pinctrl-names = "default";
pinctrl-0 = <&qspi1_pins>;
- spi-max-frequency = <64000000>;
+ spi-max-frequency = <76800000>;
m25p80 at 0 {
compatible = "s25fl256s1","spi-flash";
spi-max-frequency = <64000000>;
diff --git a/arch/arm/dts/dra72-evm.dts b/arch/arm/dts/dra72-evm.dts
index ced2f1166d8c..c7c5d40adac7 100644
--- a/arch/arm/dts/dra72-evm.dts
+++ b/arch/arm/dts/dra72-evm.dts
@@ -603,7 +603,7 @@
pinctrl-names = "default";
pinctrl-0 = <&qspi1_pins>;
- spi-max-frequency = <64000000>;
+ spi-max-frequency = <76800000>;
m25p80 at 0 {
compatible = "s25fl256s1","spi-flash";
spi-max-frequency = <64000000>;
--
2.9.2
next prev parent reply other threads:[~2016-07-25 10:15 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-25 10:15 [U-Boot] [PATCH 0/4] dra7xx: QSPI: Increase SPI bus speed Vignesh R
2016-07-25 10:15 ` [U-Boot] [PATCH 1/4] ARM: dra7xx: Change DPLL_PER_HS13 divider value Vignesh R
2016-07-25 13:38 ` Tom Rini
2016-07-29 8:42 ` Mugunthan V N
2016-07-29 18:18 ` Jagan Teki
2016-07-25 10:15 ` [U-Boot] [PATCH 2/4] spi: ti_qspi: dra7xx: Add support to use 76.8MHz clock Vignesh R
2016-07-25 13:38 ` Tom Rini
2016-07-27 6:35 ` Jagan Teki
2016-07-27 12:10 ` Vignesh R
2016-07-28 13:36 ` Jagan Teki
2016-07-29 8:42 ` Mugunthan V N
2016-07-25 10:15 ` [U-Boot] [PATCH 3/4] configs: dra7xx: Update QSPI speed to 76.8MHz Vignesh R
2016-07-25 13:38 ` Tom Rini
2016-07-27 6:36 ` Jagan Teki
2016-07-29 8:44 ` Mugunthan V N
2016-07-25 10:15 ` Vignesh R [this message]
2016-07-25 13:38 ` [U-Boot] [PATCH 4/4] ARM: dts: dra7xx: Update spi-max-frequency for QSPI Tom Rini
2016-07-25 13:46 ` Vignesh R
2016-07-28 13:39 ` Jagan Teki
2016-07-29 8:45 ` Mugunthan V N
2016-07-25 13:38 ` [U-Boot] [PATCH 0/4] dra7xx: QSPI: Increase SPI bus speed Tom Rini
2016-07-26 6:34 ` Vignesh R
2016-07-29 18:23 ` Jagan Teki
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