| /* |
| * SAMSUNG EXYNOS5250 Flattened Device Tree enabled machine |
| * |
| * Copyright (c) 2012 Samsung Electronics Co., Ltd. |
| * http://www.samsung.com |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| |
| #include <linux/of_platform.h> |
| #include <linux/of_fdt.h> |
| #include <linux/io.h> |
| |
| #include <asm/mach/arch.h> |
| #include <mach/regs-pmu.h> |
| #include <plat/mfc.h> |
| |
| #include "common.h" |
| |
| static void __init exynos5_dt_machine_init(void) |
| { |
| struct device_node *i2c_np; |
| const char *i2c_compat = "samsung,s3c2440-i2c"; |
| unsigned int tmp; |
| |
| /* |
| * Exynos5's legacy i2c controller and new high speed i2c |
| * controller have muxed interrupt sources. By default the |
| * interrupts for 4-channel HS-I2C controller are enabled. |
| * If node for first four channels of legacy i2c controller |
| * are available then re-configure the interrupts via the |
| * system register. |
| */ |
| for_each_compatible_node(i2c_np, NULL, i2c_compat) { |
| if (of_device_is_available(i2c_np)) { |
| if (of_alias_get_id(i2c_np, "i2c") < 4) { |
| tmp = readl(EXYNOS5_SYS_I2C_CFG); |
| writel(tmp & ~(0x1 << of_alias_get_id(i2c_np, "i2c")), |
| EXYNOS5_SYS_I2C_CFG); |
| } |
| } |
| } |
| |
| of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); |
| } |
| |
| static char const *exynos5_dt_compat[] __initdata = { |
| "samsung,exynos5250", |
| "samsung,exynos5420", |
| "samsung,exynos5440", |
| NULL |
| }; |
| |
| static void __init exynos5_reserve(void) |
| { |
| #ifdef CONFIG_S5P_DEV_MFC |
| struct s5p_mfc_dt_meminfo mfc_mem; |
| |
| /* Reserve memory for MFC only if it's available */ |
| mfc_mem.compatible = "samsung,mfc-v6"; |
| if (of_scan_flat_dt(s5p_fdt_find_mfc_mem, &mfc_mem)) |
| s5p_mfc_reserve_mem(mfc_mem.roff, mfc_mem.rsize, mfc_mem.loff, |
| mfc_mem.lsize); |
| #endif |
| } |
| |
| DT_MACHINE_START(EXYNOS5_DT, "SAMSUNG EXYNOS5 (Flattened Device Tree)") |
| /* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */ |
| .smp = smp_ops(exynos_smp_ops), |
| .map_io = exynos_init_io, |
| .init_machine = exynos5_dt_machine_init, |
| .init_late = exynos_init_late, |
| .dt_compat = exynos5_dt_compat, |
| .restart = exynos5_restart, |
| .reserve = exynos5_reserve, |
| MACHINE_END |