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9851ca57 DT |
1 | /* |
2 | * linux/arch/arm/mach-nspire/nspire.c | |
3 | * | |
4 | * Copyright (C) 2013 Daniel Tang <tangrs@tangrs.id.au> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2, as | |
8 | * published by the Free Software Foundation. | |
9 | * | |
10 | */ | |
11 | #include <linux/init.h> | |
12 | #include <linux/of_irq.h> | |
13 | #include <linux/of_address.h> | |
14 | #include <linux/of_platform.h> | |
15 | #include <linux/irqchip.h> | |
16 | #include <linux/irqchip/arm-vic.h> | |
17 | #include <linux/clk-provider.h> | |
18 | #include <linux/clkdev.h> | |
19 | #include <linux/amba/bus.h> | |
20 | #include <linux/amba/clcd.h> | |
21 | #include <linux/clocksource.h> | |
22 | ||
23 | #include <asm/mach/arch.h> | |
24 | #include <asm/mach-types.h> | |
25 | #include <asm/mach/map.h> | |
26 | ||
27 | #include <asm/hardware/timer-sp.h> | |
28 | ||
29 | #include "mmio.h" | |
30 | #include "clcd.h" | |
31 | ||
32 | static const char *nspire_dt_match[] __initconst = { | |
33 | "ti,nspire", | |
34 | "ti,nspire-cx", | |
35 | "ti,nspire-tp", | |
36 | "ti,nspire-clp", | |
37 | NULL, | |
38 | }; | |
39 | ||
40 | static void __init nspire_map_io(void) | |
41 | { | |
42 | debug_ll_io_init(); | |
43 | } | |
44 | ||
45 | static struct clcd_board nspire_clcd_data = { | |
46 | .name = "LCD", | |
47 | .caps = CLCD_CAP_5551 | CLCD_CAP_565, | |
48 | .check = clcdfb_check, | |
49 | .decode = clcdfb_decode, | |
50 | .setup = nspire_clcd_setup, | |
51 | .mmap = nspire_clcd_mmap, | |
52 | .remove = nspire_clcd_remove, | |
53 | }; | |
54 | ||
55 | ||
56 | static struct of_dev_auxdata nspire_auxdata[] __initdata = { | |
57 | OF_DEV_AUXDATA("arm,pl111", NSPIRE_LCD_PHYS_BASE, | |
58 | NULL, &nspire_clcd_data), | |
59 | { } | |
60 | }; | |
61 | ||
62 | static void __init nspire_init(void) | |
63 | { | |
64 | of_platform_populate(NULL, of_default_bus_match_table, | |
65 | nspire_auxdata, NULL); | |
66 | } | |
67 | ||
68 | static void __init nspire_init_time(void) | |
69 | { | |
70 | of_clk_init(NULL); | |
71 | clocksource_of_init(); | |
72 | } | |
73 | ||
74 | static void nspire_restart(char mode, const char *cmd) | |
75 | { | |
76 | void __iomem *base = ioremap(NSPIRE_MISC_PHYS_BASE, SZ_4K); | |
77 | if (!base) | |
78 | return; | |
79 | ||
80 | writel(2, base + NSPIRE_MISC_HWRESET); | |
81 | } | |
82 | ||
83 | DT_MACHINE_START(NSPIRE, "TI-NSPIRE") | |
84 | .dt_compat = nspire_dt_match, | |
85 | .map_io = nspire_map_io, | |
86 | .init_time = nspire_init_time, | |
87 | .init_machine = nspire_init, | |
88 | .restart = nspire_restart, | |
89 | MACHINE_END |