/* * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #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) { /* * 64KB way size, 8-way associativity, parity disabled */ l2x0_of_init(0x02060000, 0xF0F0FFFF); of_platform_bus_probe(NULL, zynq_of_bus_ids, NULL); } #define SCU_PERIPH_PHYS 0xF8F00000 #define SCU_PERIPH_SIZE SZ_8K #define SCU_PERIPH_VIRT (VMALLOC_END - SCU_PERIPH_SIZE) static struct map_desc scu_desc __initdata = { .virtual = SCU_PERIPH_VIRT, .pfn = __phys_to_pfn(SCU_PERIPH_PHYS), .length = SCU_PERIPH_SIZE, .type = MT_DEVICE, }; static void __init xilinx_zynq_timer_init(void) { struct device_node *np; void __iomem *slcr; np = of_find_compatible_node(NULL, NULL, "xlnx,zynq-slcr"); slcr = of_iomap(np, 0); WARN_ON(!slcr); xilinx_zynq_clocks_init(slcr); xttcpss_timer_init(); } /** * xilinx_map_io() - Create memory mappings needed for early I/O. */ static void __init xilinx_map_io(void) { debug_ll_io_init(); iotable_init(&scu_desc, 1); } static const char *xilinx_dt_match[] = { "xlnx,zynq-zc702", "xlnx,zynq-7000", NULL }; MACHINE_START(XILINX_EP107, "Xilinx Zynq Platform") .map_io = xilinx_map_io, .init_irq = irqchip_init, .init_machine = xilinx_init_machine, .init_time = xilinx_zynq_timer_init, .dt_compat = xilinx_dt_match, MACHINE_END