2 * arch/arm/mach-tegra/common.c
4 * Copyright (c) 2013 NVIDIA Corporation. All rights reserved.
5 * Copyright (C) 2010 Google, Inc.
8 * Colin Cross <ccross@android.com>
10 * This software is licensed under the terms of the GNU General Public
11 * License version 2, as published by the Free Software Foundation, and
12 * may be copied, distributed, and modified under those terms.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
21 #include <linux/init.h>
23 #include <linux/clk.h>
24 #include <linux/delay.h>
25 #include <linux/reboot.h>
26 #include <linux/irqchip.h>
27 #include <linux/clk-provider.h>
29 #include <asm/hardware/cache-l2x0.h>
44 * Storage for debug-macro.S's state.
46 * This must be in .data not .bss so that it gets initialized each time the
47 * kernel is loaded. The data is declared here rather than debug-macro.S so
48 * that multiple inclusions of debug-macro.S point at the same data.
50 u32 tegra_uart_config[4] = {
51 /* Debug UART initialization required */
53 /* Debug UART physical address */
55 /* Debug UART virtual address */
57 /* Scratch space for debug macro */
62 void __init tegra_dt_init_irq(void)
68 tegra_legacy_irq_syscore_init();
72 void tegra_assert_system_reset(enum reboot_mode mode, const char *cmd)
74 void __iomem *reset = IO_ADDRESS(TEGRA_PMC_BASE + 0);
77 reg = readl_relaxed(reset);
79 writel_relaxed(reg, reset);
82 static void __init tegra_init_cache(void)
84 #ifdef CONFIG_CACHE_L2X0
86 void __iomem *p = IO_ADDRESS(TEGRA_ARM_PERIF_BASE) + 0x3000;
87 u32 aux_ctrl, cache_type;
89 cache_type = readl(p + L2X0_CACHE_TYPE);
90 aux_ctrl = (cache_type & 0x700) << (17-8);
91 aux_ctrl |= 0x7C400001;
93 ret = l2x0_of_init(aux_ctrl, 0x8200c3fe);
95 l2x0_saved_regs_addr = virt_to_phys(&l2x0_saved_regs);
100 void __init tegra_init_early(void)
102 tegra_cpu_reset_handler_init();
106 tegra_powergate_init();
107 tegra_hotplug_init();
110 void __init tegra_init_late(void)
112 tegra_init_suspend();
113 tegra_cpuidle_init();
114 tegra_powergate_debugfs_init();