projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 9937f5ff ZLK |
1 | /* |
| 2 | * Xilfpga platform setup | |
| 3 | * | |
| 4 | * Copyright (C) 2015 Imagination Technologies | |
| 5 | * Author: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com> | |
| 6 | * | |
| 7 | * This program is free software; you can redistribute it and/or modify it | |
| 8 | * under the terms and conditions of the GNU General Public License, | |
| 9 | * version 2, as published by the Free Software Foundation. | |
| 10 | */ | |
| 11 | ||
| 12 | #include <linux/of_fdt.h> | |
| 13 | #include <linux/of_platform.h> | |
| 14 | ||
| 15 | #include <asm/prom.h> | |
| 16 | ||
| 17 | #define XILFPGA_UART_BASE 0xb0401000 | |
| 18 | ||
| 19 | const char *get_system_type(void) | |
| 20 | { | |
| 21 | return "MIPSfpga"; | |
| 22 | } | |
| 23 | ||
| 24 | void __init plat_mem_setup(void) | |
| 25 | { | |
| 26 | __dt_setup_arch(__dtb_start); | |
| 27 | strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE); | |
| 28 | } | |
| 29 | ||
| 30 | void __init prom_init(void) | |
| 31 | { | |
| 32 | setup_8250_early_printk_port(XILFPGA_UART_BASE, 2, 50000); | |
| 33 | } | |
| 34 | ||
| 35 | void __init prom_free_prom_memory(void) | |
| 36 | { | |
| 37 | } | |
| 38 | ||
| 39 | void __init device_tree_init(void) | |
| 40 | { | |
| 41 | if (!initial_boot_params) | |
| 42 | return; | |
| 43 | ||
| 44 | unflatten_and_copy_device_tree(); | |
| 45 | } | |
| 46 | ||
| 47 | static int __init plat_of_setup(void) | |
| 48 | { | |
| 49 | if (!of_have_populated_dt()) | |
| 50 | panic("Device tree not present"); | |
| 51 | ||
| 52 | if (of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL)) | |
| 53 | panic("Failed to populate DT"); | |
| 54 | ||
| 55 | return 0; | |
| 56 | } | |
| 57 | arch_initcall(plat_of_setup); |