[PATCH 4/5] arm64: dts: rockchip: Enable HS400 for Indiedroid Nova

[Chris Morgan]

From: Chris Morgan <macromorgan at hotmail.com>

Once the DLL_STRBIN_TAPNUM_DEFAULT is set to the correct value [1], the
workaround to ensure stable eMMC operation is no longer needed. I
have observed testing this that hdparm went from:
"Timing buffered disk reads: 502 MB in  3.00 seconds = 167.14 MB/sec"
to the following:
"Timing buffered disk reads: 832 MB in  3.00 seconds = 277.32 MB/sec"

[1] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/drivers/mmc/host/sdhci-of-dwcmshc.c?id=a28352cf2d2f8380e7aca8cb61682396dca7a991

Fixes: 3900160e164b ("arm64: dts: rockchip: Add Indiedroid Nova board")
Signed-off-by: Chris Morgan <macromorgan at hotmail.com>
---
 arch/arm64/boot/dts/rockchip/rk3588s-indiedroid-nova.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588s-indiedroid-nova.dts b/arch/arm64/boot/dts/rockchip/rk3588s-indiedroid-nova.dts
index 62c8c8f68713..0796ba6d2504 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588s-indiedroid-nova.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588s-indiedroid-nova.dts
@@ -561,10 +561,10 @@ &saradc {
 	status = "okay";
 };
 
-/* HS400 modes seemed to cause io errors. */
 &sdhci {
 	bus-width = <8>;
-	no-mmc-hs400;
+	mmc-hs400-1_8v;
+	mmc-hs400-enhanced-strobe;
 	no-sd;
 	no-sdio;
 	non-removable;
-- 
2.43.0