mmc: zynq_sdhci: Fix SD at 25MHz

High speeds were broken in versal. This patch workarounds the issue and operates
SD in 25MHz.

Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a00ae598eff9dd07cd88a32c330a963106e6ccf8..6456c06b15bab92cf412579ac5eb4c6378e5a7b9 100644 (file)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -890,6 +890,7 @@ config ARCH_VERSAL
        select DM_MMC if MMC
        select DM_SERIAL
        select OF_CONTROL
+       select ZYNQ_HISPD_BROKEN if MMC_SDHCI_ZYNQ
        imply BOARD_LATE_INIT
 
 config ARCH_VF610

diff --git a/arch/arm/dts/versal-vc-p-a2197-00-revA-x-prc-01-revA.dts b/arch/arm/dts/versal-vc-p-a2197-00-revA-x-prc-01-revA.dts
index fd069fec16b3872a2b0699b911e740dd976df5a5..545acf9107f7f6338d40db237d2c211168fd044d 100644 (file)
--- a/arch/arm/dts/versal-vc-p-a2197-00-revA-x-prc-01-revA.dts
+++ b/arch/arm/dts/versal-vc-p-a2197-00-revA-x-prc-01-revA.dts
@@ -50,6 +50,7 @@
 &sdhci1 { /* U104 */
        status = "okay";
        xlnx,mio_bank = <1>;
+       no-1-8-v;
 };
 
 &serial0 {