2 * SAMSUNG EXYNOS5250 Flattened Device Tree enabled machine
4 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
5 * http://www.samsung.com
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
12 #include <linux/of_platform.h>
13 #include <linux/of_fdt.h>
14 #include <linux/memblock.h>
17 #include <asm/mach/arch.h>
18 #include <mach/regs-pmu.h>
25 static void __init exynos5_dt_machine_init(void)
27 struct device_node *i2c_np;
28 const char *i2c_compat = "samsung,s3c2440-i2c";
32 * Exynos5's legacy i2c controller and new high speed i2c
33 * controller have muxed interrupt sources. By default the
34 * interrupts for 4-channel HS-I2C controller are enabled.
35 * If node for first four channels of legacy i2c controller
36 * are available then re-configure the interrupts via the
39 for_each_compatible_node(i2c_np, NULL, i2c_compat) {
40 if (of_device_is_available(i2c_np)) {
41 if (of_alias_get_id(i2c_np, "i2c") < 4) {
42 tmp = readl(EXYNOS5_SYS_I2C_CFG);
43 writel(tmp & ~(0x1 << of_alias_get_id(i2c_np, "i2c")),
49 exynos_cpuidle_init();
51 of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
54 static char const *exynos5_dt_compat[] __initdata = {
61 static void __init exynos5_reserve(void)
63 #ifdef CONFIG_S5P_DEV_MFC
64 struct s5p_mfc_dt_meminfo mfc_mem;
66 /* Reserve memory for MFC only if it's available */
67 mfc_mem.compatible = "samsung,mfc-v6";
68 if (of_scan_flat_dt(s5p_fdt_find_mfc_mem, &mfc_mem))
69 s5p_mfc_reserve_mem(mfc_mem.roff, mfc_mem.rsize, mfc_mem.loff,
74 DT_MACHINE_START(EXYNOS5_DT, "SAMSUNG EXYNOS5 (Flattened Device Tree)")
75 /* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
76 .smp = smp_ops(exynos_smp_ops),
77 .map_io = exynos_init_io,
78 .init_machine = exynos5_dt_machine_init,
79 .init_late = exynos_init_late,
80 .dt_compat = exynos5_dt_compat,
81 .restart = exynos5_restart,
82 .reserve = exynos5_reserve,