[platforms: PATCH v3 08/10] Marvell/Drivers: XenonDxe: Fix UHS signalling mode setting

[Marcin Wojtas <mw@semihalf.com>]

This patch fixes incorrect settings for UHS mode in
SD_MMC_HC_HOST_CTRL2 register for SDR50 and SDR25, of which
the latter was missing. This field should be set to:

0x4 for DDR52
0x2 for SDR50
0x1 for SDR25
0x0 for others.

This way EmmcSwitchToHighSpeed function is on par with Linux
set_uhs_signaling routine in the Xenon driver.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
---
 Platform/Marvell/Drivers/SdMmc/XenonDxe/EmmcDevice.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Platform/Marvell/Drivers/SdMmc/XenonDxe/EmmcDevice.c b/Platform/Marvell/Drivers/SdMmc/XenonDxe/EmmcDevice.c
index 3f73194..4d4833f 100755
--- a/Platform/Marvell/Drivers/SdMmc/XenonDxe/EmmcDevice.c
+++ b/Platform/Marvell/Drivers/SdMmc/XenonDxe/EmmcDevice.c
@@ -772,6 +772,8 @@ EmmcSwitchToHighSpeed (
   if (IsDdr) {
     HostCtrl2 = BIT2;
   } else if (ClockFreq == 52) {
+    HostCtrl2 = BIT1;
+  } else if (ClockFreq == 26) {
     HostCtrl2 = BIT0;
   } else {
     HostCtrl2 = 0;
-- 
2.7.4