d7c2ec770f88bf1e80cc74e2749262726e10c598
[linux-3.10.git] / arch / arm / mach-s5pv310 / mach-universal_c210.c
1 /* linux/arch/arm/mach-s5pv310/mach-universal_c210.c
2  *
3  * Copyright (c) 2010 Samsung Electronics Co., Ltd.
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License version 2 as
7  * published by the Free Software Foundation.
8 */
9
10 #include <linux/serial_core.h>
11
12 #include <asm/mach/arch.h>
13 #include <asm/mach-types.h>
14 #include <asm/hardware/cache-l2x0.h>
15
16 #include <plat/regs-serial.h>
17 #include <plat/s5pv310.h>
18 #include <plat/cpu.h>
19
20 #include <mach/map.h>
21
22 /* Following are default values for UCON, ULCON and UFCON UART registers */
23 #define UNIVERSAL_UCON_DEFAULT  (S3C2410_UCON_TXILEVEL |        \
24                                  S3C2410_UCON_RXILEVEL |        \
25                                  S3C2410_UCON_TXIRQMODE |       \
26                                  S3C2410_UCON_RXIRQMODE |       \
27                                  S3C2410_UCON_RXFIFO_TOI |      \
28                                  S3C2443_UCON_RXERR_IRQEN)
29
30 #define UNIVERSAL_ULCON_DEFAULT S3C2410_LCON_CS8
31
32 #define UNIVERSAL_UFCON_DEFAULT (S3C2410_UFCON_FIFOMODE |       \
33                                  S5PV210_UFCON_TXTRIG256 |      \
34                                  S5PV210_UFCON_RXTRIG256)
35
36 static struct s3c2410_uartcfg universal_uartcfgs[] __initdata = {
37         [0] = {
38                 .hwport         = 0,
39                 .ucon           = UNIVERSAL_UCON_DEFAULT,
40                 .ulcon          = UNIVERSAL_ULCON_DEFAULT,
41                 .ufcon          = UNIVERSAL_UFCON_DEFAULT,
42         },
43         [1] = {
44                 .hwport         = 1,
45                 .ucon           = UNIVERSAL_UCON_DEFAULT,
46                 .ulcon          = UNIVERSAL_ULCON_DEFAULT,
47                 .ufcon          = UNIVERSAL_UFCON_DEFAULT,
48         },
49         [2] = {
50                 .hwport         = 2,
51                 .ucon           = UNIVERSAL_UCON_DEFAULT,
52                 .ulcon          = UNIVERSAL_ULCON_DEFAULT,
53                 .ufcon          = UNIVERSAL_UFCON_DEFAULT,
54         },
55         [3] = {
56                 .hwport         = 3,
57                 .ucon           = UNIVERSAL_UCON_DEFAULT,
58                 .ulcon          = UNIVERSAL_ULCON_DEFAULT,
59                 .ufcon          = UNIVERSAL_UFCON_DEFAULT,
60         },
61 };
62
63 static void __init universal_map_io(void)
64 {
65         s5p_init_io(NULL, 0, S5P_VA_CHIPID);
66         s3c24xx_init_clocks(24000000);
67         s3c24xx_init_uarts(universal_uartcfgs, ARRAY_SIZE(universal_uartcfgs));
68 }
69
70 static void __init universal_machine_init(void)
71 {
72 #ifdef CONFIG_CACHE_L2X0
73         l2x0_init(S5P_VA_L2CC, 1 << 28, 0xffffffff);
74 #endif
75 }
76
77 MACHINE_START(UNIVERSAL_C210, "UNIVERSAL_C210")
78         /* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */
79         .boot_params    = S5P_PA_SDRAM + 0x100,
80         .init_irq       = s5pv310_init_irq,
81         .map_io         = universal_map_io,
82         .init_machine   = universal_machine_init,
83         .timer          = &s5pv310_timer,
84 MACHINE_END