diff mbox series

[v2,2/2] riscv: dts: starfive: fml13v01: increase eMMC bus speed

Message ID 20250222-fml13v01_emmc_speed-v2-2-3ffc5b1f5663@hotmail.com (mailing list archive)
State New
Headers show
Series riscv: dts: starfive: jh7110: increase eMMC bus speed | expand

Checks

Context Check Description
bjorn/pre-ci_am fail Failed to apply series

Commit Message

Maud Spierings via B4 Relay Feb. 22, 2025, 1:34 p.m. UTC 
From: Maud Spierings <maud_spierings@hotmail.com>

The assigned clock speed of 50 MHz is limitting this interface which is
SDIO 5.0 capable. Sadly at 200MHz it fails to mount an eMMC drive,
150MHz (really 132 MHz) is the highest it was able to get.

This improves the seq read/write performance by 2x~

Signed-off-by: Maud Spierings <maud_spierings@hotmail.com>
---
 arch/riscv/boot/dts/starfive/jh7110-deepcomputing-fml13v01.dts | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/arch/riscv/boot/dts/starfive/jh7110-deepcomputing-fml13v01.dts b/arch/riscv/boot/dts/starfive/jh7110-deepcomputing-fml13v01.dts
index 8d9ce8b69a71be78ca57618ae842c9f415648450..63b539bedd63d39dbe2096f85aaf70ba6ab64d29 100644
--- a/arch/riscv/boot/dts/starfive/jh7110-deepcomputing-fml13v01.dts
+++ b/arch/riscv/boot/dts/starfive/jh7110-deepcomputing-fml13v01.dts
@@ -11,6 +11,10 @@  / {
 	compatible = "deepcomputing,fml13v01", "starfive,jh7110";
 };
 
+&mmc0 {
+	assigned-clock-rates = <150000000>;
+};
+
 &pcie1 {
 	perst-gpios = <&sysgpio 21 GPIO_ACTIVE_LOW>;
 	phys = <&pciephy1>;