arm64: Add Xilinx ZynqMP support

Add basic Xilinx ZynqMP arm64 support.
Serial and SD is supported.
It supports emulation platfrom ep108 and QEMU.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Tom Rini <trini@konsulko.com>

3 files changed, 80 insertions, 0 deletions

diff --git a/arch/arm/include/asm/arch-zynqmp/clk.h b/arch/arm/include/asm/arch-zynqmp/clk.h
new file mode 100644
index 0000000..d55bc31
--- /dev/null
+++ b/arch/arm/include/asm/arch-zynqmp/clk.h
@@ -0,0 +1,13 @@
+/*
+ * (C) Copyright 2014 - 2015 Xilinx, Inc.
+ * Michal Simek <michal.simek@xilinx.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _ASM_ARCH_CLK_H_
+#define _ASM_ARCH_CLK_H_
+
+unsigned long get_uart_clk(int dev_id);
+
+#endif /* _ASM_ARCH_CLK_H_ */
diff --git a/arch/arm/include/asm/arch-zynqmp/hardware.h b/arch/arm/include/asm/arch-zynqmp/hardware.h
new file mode 100644
index 0000000..97fb49a
--- /dev/null
+++ b/arch/arm/include/asm/arch-zynqmp/hardware.h
@@ -0,0 +1,52 @@
+/*
+ * (C) Copyright 2014 - 2015 Xilinx, Inc.
+ * Michal Simek <michal.simek@xilinx.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _ASM_ARCH_HARDWARE_H
+#define _ASM_ARCH_HARDWARE_H
+
+#define ZYNQ_SERIAL_BASEADDR0	0xFF000000
+#define ZYNQ_SERIAL_BASEADDR1	0xFF001000
+
+#define ZYNQ_SDHCI_BASEADDR0	0xFF160000
+#define ZYNQ_SDHCI_BASEADDR1	0xFF170000
+
+#define ZYNQMP_CRL_APB_BASEADDR	0xFF5E0000
+#define ZYNQMP_CRL_APB_TIMESTAMP_REF_CTRL_CLKACT	0x1000000
+
+struct crlapb_regs {
+	u32 reserved0[74];
+	u32 timestamp_ref_ctrl; /* 0x128 */
+	u32 reserved0_1[53];
+	u32 boot_mode; /* 0x200 */
+	u32 reserved1[26];
+};
+
+#define crlapb_base ((struct crlapb_regs *)ZYNQMP_CRL_APB_BASEADDR)
+
+#define ZYNQMP_IOU_SCNTR	0xFF250000
+#define ZYNQMP_IOU_SCNTR_COUNTER_CONTROL_REGISTER_EN	0x1
+#define ZYNQMP_IOU_SCNTR_COUNTER_CONTROL_REGISTER_HDBG	0x2
+
+struct iou_scntr {
+	u32 counter_control_register;
+	u32 reserved0[7];
+	u32 base_frequency_id_register;
+};
+
+#define iou_scntr ((struct iou_scntr *)ZYNQMP_IOU_SCNTR)
+
+/* Bootmode setting values */
+#define BOOT_MODES_MASK	0x0000000F
+#define SD_MODE		0x00000005
+#define JTAG_MODE	0x00000000
+
+/* Board version value */
+#define ZYNQMP_CSU_VERSION_SILICON	0x0
+#define ZYNQMP_CSU_VERSION_EP108	0x1
+#define ZYNQMP_CSU_VERSION_QEMU		0x3
+
+#endif /* _ASM_ARCH_HARDWARE_H */
diff --git a/arch/arm/include/asm/arch-zynqmp/sys_proto.h b/arch/arm/include/asm/arch-zynqmp/sys_proto.h
new file mode 100644
index 0000000..d8e0ba1
--- /dev/null
+++ b/arch/arm/include/asm/arch-zynqmp/sys_proto.h
@@ -0,0 +1,15 @@
+/*
+ * (C) Copyright 2014 - 2015 Xilinx, Inc.
+ * Michal Simek <michal.simek@xilinx.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _ASM_ARCH_SYS_PROTO_H
+#define _ASM_ARCH_SYS_PROTO_H
+
+int zynq_sdhci_init(unsigned long regbase);
+
+unsigned int zynqmp_get_silicon_version(void);
+
+#endif /* _ASM_ARCH_SYS_PROTO_H */