1 files changed, 118 insertions, 0 deletions

diff --git a/arch/arm/mach-zynq/common.c b/arch/arm/mach-zynq/common.c
new file mode 100644
index 000000000000..73e93687b81a
--- /dev/null
+++ b/arch/arm/mach-zynq/common.c
@@ -0,0 +1,118 @@
+/*
+ * This file contains common code that is intended to be used across
+ * boards so that it's not replicated.
+ *
+ *  Copyright (C) 2011 Xilinx
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/cpumask.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/of.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach-types.h>
+#include <asm/page.h>
+#include <asm/hardware/gic.h>
+#include <asm/hardware/cache-l2x0.h>
+
+#include <mach/zynq_soc.h>
+#include <mach/clkdev.h>
+#include "common.h"
+
+static struct of_device_id zynq_of_bus_ids[] __initdata = {
+        { .compatible = "simple-bus", },
+        {}
+};
+
+/**
+ * xilinx_init_machine() - System specific initialization, intended to be
+ *                         called from board specific initialization.
+ */
+static void __init xilinx_init_machine(void)
+{
+#ifdef CONFIG_CACHE_L2X0
+        /*
+         * 64KB way size, 8-way associativity, parity disabled
+         */
+        l2x0_init(PL310_L2CC_BASE, 0x02060000, 0xF0F0FFFF);
+#endif
+
+        of_platform_bus_probe(NULL, zynq_of_bus_ids, NULL);
+}
+
+/**
+ * xilinx_irq_init() - Interrupt controller initialization for the GIC.
+ */
+static void __init xilinx_irq_init(void)
+{
+        gic_init(0, 29, SCU_GIC_DIST_BASE, SCU_GIC_CPU_BASE);
+}
+
+/* The minimum devices needed to be mapped before the VM system is up and
+ * running include the GIC, UART and Timer Counter.
+ */
+
+static struct map_desc io_desc[] __initdata = {
+        {
+                .virtual        = TTC0_VIRT,
+                .pfn            = __phys_to_pfn(TTC0_PHYS),
+                .length         = SZ_4K,
+                .type           = MT_DEVICE,
+        }, {
+                .virtual        = SCU_PERIPH_VIRT,
+                .pfn            = __phys_to_pfn(SCU_PERIPH_PHYS),
+                .length         = SZ_8K,
+                .type           = MT_DEVICE,
+        }, {
+                .virtual        = PL310_L2CC_VIRT,
+                .pfn            = __phys_to_pfn(PL310_L2CC_PHYS),
+                .length         = SZ_4K,
+                .type           = MT_DEVICE,
+        },
+
+#ifdef CONFIG_DEBUG_LL
+        {
+                .virtual        = UART0_VIRT,
+                .pfn            = __phys_to_pfn(UART0_PHYS),
+                .length         = SZ_4K,
+                .type           = MT_DEVICE,
+        },
+#endif
+
+};
+
+/**
+ * xilinx_map_io() - Create memory mappings needed for early I/O.
+ */
+static void __init xilinx_map_io(void)
+{
+        iotable_init(io_desc, ARRAY_SIZE(io_desc));
+}
+
+static const char *xilinx_dt_match[] = {
+        "xlnx,zynq-ep107",
+        NULL
+};
+
+MACHINE_START(XILINX_EP107, "Xilinx Zynq Platform")
+        .map_io         = xilinx_map_io,
+        .init_irq       = xilinx_irq_init,
+        .init_machine   = xilinx_init_machine,
+        .timer          = &xttcpss_sys_timer,
+        .dt_compat      = xilinx_dt_match,
+MACHINE_END