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-rw-r--r--arch/arm/mach-s5p64x0/init.c73
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1/* linux/arch/arm/mach-s5p64x0/init.c
2 *
3 * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com
5 *
6 * S5P64X0 - Init support
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11*/
12
13#include <linux/kernel.h>
14#include <linux/types.h>
15#include <linux/init.h>
16#include <linux/serial_core.h>
17
18#include <mach/map.h>
19
20#include <plat/cpu.h>
21#include <plat/devs.h>
22#include <plat/s5p6440.h>
23#include <plat/s5p6450.h>
24#include <plat/regs-serial.h>
25
26static struct s3c24xx_uart_clksrc s5p64x0_serial_clocks[] = {
27 [0] = {
28 .name = "pclk_low",
29 .divisor = 1,
30 .min_baud = 0,
31 .max_baud = 0,
32 },
33 [1] = {
34 .name = "uclk1",
35 .divisor = 1,
36 .min_baud = 0,
37 .max_baud = 0,
38 },
39};
40
41/* uart registration process */
42
43void __init s5p64x0_common_init_uarts(struct s3c2410_uartcfg *cfg, int no)
44{
45 struct s3c2410_uartcfg *tcfg = cfg;
46 u32 ucnt;
47
48 for (ucnt = 0; ucnt < no; ucnt++, tcfg++) {
49 if (!tcfg->clocks) {
50 tcfg->clocks = s5p64x0_serial_clocks;
51 tcfg->clocks_size = ARRAY_SIZE(s5p64x0_serial_clocks);
52 }
53 }
54}
55
56void __init s5p6440_init_uarts(struct s3c2410_uartcfg *cfg, int no)
57{
58 int uart;
59
60 for (uart = 0; uart < no; uart++) {
61 s5p_uart_resources[uart].resources->start = S5P6440_PA_UART(uart);
62 s5p_uart_resources[uart].resources->end = S5P6440_PA_UART(uart) + S5P_SZ_UART;
63 }
64
65 s5p64x0_common_init_uarts(cfg, no);
66 s3c24xx_init_uartdevs("s3c6400-uart", s5p_uart_resources, cfg, no);
67}
68
69void __init s5p6450_init_uarts(struct s3c2410_uartcfg *cfg, int no)
70{
71 s5p64x0_common_init_uarts(cfg, no);
72 s3c24xx_init_uartdevs("s3c6400-uart", s5p_uart_resources, cfg, no);
73}