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git.proxmox.com Git - mirror_ubuntu-hirsute-kernel.git/blob - arch/arm/mach-tegra/tegra.c
2 * NVIDIA Tegra SoC device tree board support
4 * Copyright (C) 2011, 2013, NVIDIA Corporation
5 * Copyright (C) 2010 Secret Lab Technologies, Ltd.
6 * Copyright (C) 2010 Google, Inc.
8 * This software is licensed under the terms of the GNU General Public
9 * License version 2, as published by the Free Software Foundation, and
10 * may be copied, distributed, and modified under those terms.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
19 #include <linux/clk.h>
20 #include <linux/clk/tegra.h>
21 #include <linux/dma-mapping.h>
22 #include <linux/init.h>
24 #include <linux/irqchip.h>
25 #include <linux/irqdomain.h>
26 #include <linux/kernel.h>
27 #include <linux/of_address.h>
28 #include <linux/of_fdt.h>
30 #include <linux/of_platform.h>
31 #include <linux/pda_power.h>
32 #include <linux/platform_device.h>
33 #include <linux/serial_8250.h>
34 #include <linux/slab.h>
35 #include <linux/sys_soc.h>
36 #include <linux/usb/tegra_usb_phy.h>
38 #include <linux/firmware/trusted_foundations.h>
40 #include <soc/tegra/fuse.h>
41 #include <soc/tegra/pmc.h>
43 #include <asm/firmware.h>
44 #include <asm/hardware/cache-l2x0.h>
45 #include <asm/mach/arch.h>
46 #include <asm/mach/time.h>
47 #include <asm/mach-types.h>
48 #include <asm/setup.h>
60 * Storage for debug-macro.S's state.
62 * This must be in .data not .bss so that it gets initialized each time the
63 * kernel is loaded. The data is declared here rather than debug-macro.S so
64 * that multiple inclusions of debug-macro.S point at the same data.
66 u32 tegra_uart_config
[3] = {
67 /* Debug UART initialization required */
69 /* Debug UART physical address */
71 /* Debug UART virtual address */
75 static void __init
tegra_init_early(void)
77 of_register_trusted_foundations();
78 tegra_cpu_reset_handler_init();
79 call_firmware_op(l2x0_init
);
82 static void __init
tegra_dt_init_irq(void)
88 static void __init
tegra_dt_init(void)
90 struct device
*parent
= tegra_soc_device_register();
92 of_platform_default_populate(NULL
, NULL
, parent
);
95 static void __init
tegra_dt_init_late(void)
100 if (IS_ENABLED(CONFIG_ARCH_TEGRA_2x_SOC
) &&
101 of_machine_is_compatible("compal,paz00"))
102 tegra_paz00_wifikill_init();
104 if (IS_ENABLED(CONFIG_ARCH_TEGRA_2x_SOC
) &&
105 of_machine_is_compatible("nvidia,tegra20"))
106 platform_device_register_simple("tegra20-cpufreq", -1, NULL
, 0);
109 static const char * const tegra_dt_board_compat
[] = {
117 DT_MACHINE_START(TEGRA_DT
, "NVIDIA Tegra SoC (Flattened Device Tree)")
118 .l2c_aux_val
= 0x3c400001,
119 .l2c_aux_mask
= 0xc20fc3fe,
120 .smp
= smp_ops(tegra_smp_ops
),
121 .map_io
= tegra_map_common_io
,
122 .init_early
= tegra_init_early
,
123 .init_irq
= tegra_dt_init_irq
,
124 .init_machine
= tegra_dt_init
,
125 .init_late
= tegra_dt_init_late
,
126 .dt_compat
= tegra_dt_board_compat
,