zynqmp: Add support for IP detection via SLCR

SLCR can be used for IP configuration setting.
Add SLCR skeleton to enable run time checking.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

arch/arm/include/asm/arch-zynqmp/hardware.h

@@ -55,6 +55,15 @@ struct iou_scntr {
 #define EMMC_MODE	0x00000006
 #define JTAG_MODE	0x00000000
 
+#define ZYNQMP_IOU_SLCR_BASEADDR	0xFF180000
+
+struct iou_slcr_regs {
+	u32 mio_pin[78];
+	u32 reserved[442];
+};
+
+#define slcr_base ((struct iou_slcr_regs *)ZYNQMP_IOU_SLCR_BASEADDR)
+
 #define ZYNQMP_RPU_BASEADDR	0xFF9A0000
 
 struct rpu_regs {

arch/arm/include/asm/arch-zynqmp/sys_proto.h

@@ -9,6 +9,7 @@
 #define _ASM_ARCH_SYS_PROTO_H
 
 int zynq_sdhci_init(unsigned long regbase);
+int zynq_slcr_get_mio_pin_status(const char *periph);
 
 unsigned int zynqmp_get_silicon_version(void);