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1 | // SPDX-License-Identifier: GPL-2.0 |
2 | // | |
3 | // Copyright (c) 2004-2006 Simtec Electronics | |
4 | // Ben Dooks <ben@simtec.co.uk> | |
5 | // | |
6 | // Samsung S3C2440 and S3C2442 Mobile CPU support (not S3C2443) | |
96ce2385 BD |
7 | |
8 | #include <linux/kernel.h> | |
9 | #include <linux/types.h> | |
10 | #include <linux/interrupt.h> | |
11 | #include <linux/list.h> | |
12 | #include <linux/timer.h> | |
13 | #include <linux/init.h> | |
b6d1f542 | 14 | #include <linux/serial_core.h> |
334a1c70 | 15 | #include <linux/serial_s3c.h> |
96ce2385 | 16 | #include <linux/platform_device.h> |
7b6d864b | 17 | #include <linux/reboot.h> |
4a858cfc | 18 | #include <linux/device.h> |
bb072c3c | 19 | #include <linux/syscore_ops.h> |
96ce2385 | 20 | #include <linux/clk.h> |
fced80c7 | 21 | #include <linux/io.h> |
96ce2385 | 22 | |
9f97da78 | 23 | #include <asm/system_misc.h> |
96ce2385 BD |
24 | #include <asm/mach/arch.h> |
25 | #include <asm/mach/map.h> | |
26 | #include <asm/mach/irq.h> | |
27 | ||
a09e64fb | 28 | #include <mach/hardware.h> |
96ce2385 BD |
29 | #include <asm/irq.h> |
30 | ||
e425382e BD |
31 | #include <plat/cpu-freq.h> |
32 | ||
a09e64fb | 33 | #include <mach/regs-clock.h> |
a09e64fb | 34 | #include <mach/regs-gpio.h> |
96ce2385 | 35 | |
a2b7ba9c BD |
36 | #include <plat/devs.h> |
37 | #include <plat/cpu.h> | |
38 | #include <plat/pm.h> | |
96ce2385 | 39 | |
51cb1289 | 40 | #include "common.h" |
f8eed6cd | 41 | #include "nand-core.h" |
b4353784 KK |
42 | #include "regs-dsc.h" |
43 | ||
96ce2385 BD |
44 | static struct map_desc s3c244x_iodesc[] __initdata = { |
45 | IODESC_ENT(CLKPWR), | |
46 | IODESC_ENT(TIMER), | |
47 | IODESC_ENT(WATCHDOG), | |
96ce2385 BD |
48 | }; |
49 | ||
50 | /* uart initialisation */ | |
51 | ||
52 | void __init s3c244x_init_uarts(struct s3c2410_uartcfg *cfg, int no) | |
53 | { | |
54 | s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no); | |
55 | } | |
56 | ||
74b265d4 | 57 | void __init s3c244x_map_io(void) |
96ce2385 BD |
58 | { |
59 | /* register our io-tables */ | |
60 | ||
61 | iotable_init(s3c244x_iodesc, ARRAY_SIZE(s3c244x_iodesc)); | |
96ce2385 BD |
62 | |
63 | /* rename any peripherals used differing from the s3c2410 */ | |
64 | ||
90239bbd | 65 | s3c_device_sdi.name = "s3c2440-sdi"; |
3e1b776c | 66 | s3c_device_i2c0.name = "s3c2440-i2c"; |
ef3f2dd4 | 67 | s3c_nand_setname("s3c2440-nand"); |
ce8877b5 | 68 | s3c_device_ts.name = "s3c2440-ts"; |
b8ccca4a | 69 | s3c_device_usbgadget.name = "s3c2440-usbgadget"; |
51cb1289 | 70 | s3c2410_device_dclk.name = "s3c2440-dclk"; |
96ce2385 BD |
71 | } |
72 | ||
4a858cfc | 73 | /* Since the S3C2442 and S3C2440 share items, put both subsystems here */ |
96ce2385 | 74 | |
4a858cfc | 75 | struct bus_type s3c2440_subsys = { |
af5ca3f4 | 76 | .name = "s3c2440-core", |
4a858cfc | 77 | .dev_name = "s3c2440-core", |
96ce2385 BD |
78 | }; |
79 | ||
4a858cfc | 80 | struct bus_type s3c2442_subsys = { |
af5ca3f4 | 81 | .name = "s3c2442-core", |
4a858cfc | 82 | .dev_name = "s3c2442-core", |
96ce2385 BD |
83 | }; |
84 | ||
4a858cfc | 85 | /* need to register the subsystem before we actually register the device, and |
96ce2385 BD |
86 | * we also need to ensure that it has been initialised before any of the |
87 | * drivers even try to use it (even if not on an s3c2440 based system) | |
88 | * as a driver which may support both 2410 and 2440 may try and use it. | |
89 | */ | |
90 | ||
91 | static int __init s3c2440_core_init(void) | |
92 | { | |
4a858cfc | 93 | return subsys_system_register(&s3c2440_subsys, NULL); |
96ce2385 BD |
94 | } |
95 | ||
96 | core_initcall(s3c2440_core_init); | |
97 | ||
98 | static int __init s3c2442_core_init(void) | |
99 | { | |
4a858cfc | 100 | return subsys_system_register(&s3c2442_subsys, NULL); |
96ce2385 BD |
101 | } |
102 | ||
103 | core_initcall(s3c2442_core_init); | |
bb072c3c RW |
104 | |
105 | ||
4f506daf | 106 | #ifdef CONFIG_PM_SLEEP |
bb072c3c RW |
107 | static struct sleep_save s3c244x_sleep[] = { |
108 | SAVE_ITEM(S3C2440_DSC0), | |
109 | SAVE_ITEM(S3C2440_DSC1), | |
110 | SAVE_ITEM(S3C2440_GPJDAT), | |
111 | SAVE_ITEM(S3C2440_GPJCON), | |
112 | SAVE_ITEM(S3C2440_GPJUP) | |
113 | }; | |
114 | ||
115 | static int s3c244x_suspend(void) | |
116 | { | |
117 | s3c_pm_do_save(s3c244x_sleep, ARRAY_SIZE(s3c244x_sleep)); | |
118 | return 0; | |
119 | } | |
120 | ||
121 | static void s3c244x_resume(void) | |
122 | { | |
123 | s3c_pm_do_restore(s3c244x_sleep, ARRAY_SIZE(s3c244x_sleep)); | |
124 | } | |
bb072c3c RW |
125 | |
126 | struct syscore_ops s3c244x_pm_syscore_ops = { | |
127 | .suspend = s3c244x_suspend, | |
128 | .resume = s3c244x_resume, | |
129 | }; | |
4f506daf | 130 | #endif |