mmc: Added Kconfig support for CONFIG_ZYNQ_SDHCI_MIN_FREQ

This patch added Kconfig support for CONFIG_ZYNQ_SDHCI_MIN_FREQ
and enabled it in respective defconfig.

Signed-off-by: Vipul Kumar <vipulk@xilinx.com>
Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

configs/xilinx_zynqmp_ep_defconfig

@@ -62,6 +62,7 @@ CONFIG_MISC=y
 CONFIG_DM_MMC=y
 CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_ZYNQ=y
+CONFIG_ZYNQ_SDHCI_MIN_FREQ=100000
 CONFIG_NAND=y
 CONFIG_NAND_ARASAN=y
 CONFIG_SPI_FLASH=y

drivers/mmc/Kconfig

@@ -487,6 +487,13 @@ config ZYNQ_SDHCI_MAX_FREQ
 	help
 	  Set the maximum frequency of the controller.
 
+config ZYNQ_SDHCI_MIN_FREQ
+	int "Set the minimum frequency of the controller"
+	depends on MMC_SDHCI_ZYNQ
+	default 0
+	help
+	  Set the minimum frequency of the controller.
+
 config MMC_SUNXI
 	bool "Allwinner sunxi SD/MMC Host Controller support"
 	depends on ARCH_SUNXI && !UART0_PORT_F

drivers/mmc/zynq_sdhci.c

@@ -16,10 +16,6 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-#ifndef CONFIG_ZYNQ_SDHCI_MIN_FREQ
-# define CONFIG_ZYNQ_SDHCI_MIN_FREQ	0
-#endif
-
 struct arasan_sdhci_plat {
 	struct mmc_config cfg;
 	struct mmc mmc;

include/configs/xilinx_zynqmp_ep.h

@@ -13,7 +13,6 @@
 #ifndef __CONFIG_ZYNQMP_EP_H
 #define __CONFIG_ZYNQMP_EP_H
 
-#define CONFIG_ZYNQ_SDHCI_MIN_FREQ	(CONFIG_ZYNQ_SDHCI_MAX_FREQ >> 9)
 #define CONFIG_ZYNQ_EEPROM
 #define CONFIG_ZYNQMP_XHCI_LIST {ZYNQMP_USB0_XHCI_BASEADDR, \
 				 ZYNQMP_USB1_XHCI_BASEADDR}