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authorBen Dooks <ben-linux@fluff.org>2007-02-11 12:31:01 -0500
committerRussell King <rmk+kernel@arm.linux.org.uk>2007-02-11 12:36:09 -0500
commita21765a70ec06be175d3997320a83fa66fcc8955 (patch)
tree24bdbf437a9bd5b7c1af05898f5aa25dccf67fe9 /arch/arm/mach-s3c2410/s3c244x.c
parentd19494b187b20e363f9b434b9ceab4159ac88324 (diff)
[ARM] 4157/2: S3C24XX: move arch/arch/mach-s3c2410 into cpu components
The following patch and script moves the arch/arm/mach-s3c2410 directory into arch/arm/plat-s3c24xx for the generic core code and inti arch/arm/mach-s3c{cpu} for the cpu/machine support files Include directory include/asm-arm/plat-s3c24xx is added for the core include files. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-s3c2410/s3c244x.c')
-rw-r--r--arch/arm/mach-s3c2410/s3c244x.c184
1 files changed, 0 insertions, 184 deletions
diff --git a/arch/arm/mach-s3c2410/s3c244x.c b/arch/arm/mach-s3c2410/s3c244x.c
deleted file mode 100644
index 23c7494ad10d..000000000000
--- a/arch/arm/mach-s3c2410/s3c244x.c
+++ /dev/null
@@ -1,184 +0,0 @@
1/* linux/arch/arm/mach-s3c2410/s3c244x.c
2 *
3 * Copyright (c) 2004-2006 Simtec Electronics
4 * Ben Dooks <ben@simtec.co.uk>
5 *
6 * Samsung S3C2440 and S3C2442 Mobile CPU 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/interrupt.h>
16#include <linux/list.h>
17#include <linux/timer.h>
18#include <linux/init.h>
19#include <linux/serial_core.h>
20#include <linux/platform_device.h>
21#include <linux/sysdev.h>
22#include <linux/clk.h>
23
24#include <asm/mach/arch.h>
25#include <asm/mach/map.h>
26#include <asm/mach/irq.h>
27
28#include <asm/hardware.h>
29#include <asm/io.h>
30#include <asm/irq.h>
31
32#include <asm/arch/regs-clock.h>
33#include <asm/arch/regs-serial.h>
34#include <asm/arch/regs-gpio.h>
35#include <asm/arch/regs-gpioj.h>
36#include <asm/arch/regs-dsc.h>
37
38#include "s3c2410.h"
39#include "s3c2440.h"
40#include "s3c244x.h"
41#include "clock.h"
42#include "devs.h"
43#include "cpu.h"
44#include "pm.h"
45
46static struct map_desc s3c244x_iodesc[] __initdata = {
47 IODESC_ENT(CLKPWR),
48 IODESC_ENT(TIMER),
49 IODESC_ENT(WATCHDOG),
50 IODESC_ENT(LCD),
51};
52
53/* uart initialisation */
54
55void __init s3c244x_init_uarts(struct s3c2410_uartcfg *cfg, int no)
56{
57 s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no);
58}
59
60void __init s3c244x_map_io(struct map_desc *mach_desc, int size)
61{
62 /* register our io-tables */
63
64 iotable_init(s3c244x_iodesc, ARRAY_SIZE(s3c244x_iodesc));
65 iotable_init(mach_desc, size);
66
67 /* rename any peripherals used differing from the s3c2410 */
68
69 s3c_device_i2c.name = "s3c2440-i2c";
70 s3c_device_nand.name = "s3c2440-nand";
71 s3c_device_usbgadget.name = "s3c2440-usbgadget";
72}
73
74void __init s3c244x_init_clocks(int xtal)
75{
76 unsigned long clkdiv;
77 unsigned long camdiv;
78 unsigned long hclk, fclk, pclk;
79 int hdiv = 1;
80
81 /* now we've got our machine bits initialised, work out what
82 * clocks we've got */
83
84 fclk = s3c2410_get_pll(__raw_readl(S3C2410_MPLLCON), xtal) * 2;
85
86 clkdiv = __raw_readl(S3C2410_CLKDIVN);
87 camdiv = __raw_readl(S3C2440_CAMDIVN);
88
89 /* work out clock scalings */
90
91 switch (clkdiv & S3C2440_CLKDIVN_HDIVN_MASK) {
92 case S3C2440_CLKDIVN_HDIVN_1:
93 hdiv = 1;
94 break;
95
96 case S3C2440_CLKDIVN_HDIVN_2:
97 hdiv = 2;
98 break;
99
100 case S3C2440_CLKDIVN_HDIVN_4_8:
101 hdiv = (camdiv & S3C2440_CAMDIVN_HCLK4_HALF) ? 8 : 4;
102 break;
103
104 case S3C2440_CLKDIVN_HDIVN_3_6:
105 hdiv = (camdiv & S3C2440_CAMDIVN_HCLK3_HALF) ? 6 : 3;
106 break;
107 }
108
109 hclk = fclk / hdiv;
110 pclk = hclk / ((clkdiv & S3C2440_CLKDIVN_PDIVN)? 2:1);
111
112 /* print brief summary of clocks, etc */
113
114 printk("S3C244X: core %ld.%03ld MHz, memory %ld.%03ld MHz, peripheral %ld.%03ld MHz\n",
115 print_mhz(fclk), print_mhz(hclk), print_mhz(pclk));
116
117 /* initialise the clocks here, to allow other things like the
118 * console to use them, and to add new ones after the initialisation
119 */
120
121 s3c24xx_setup_clocks(xtal, fclk, hclk, pclk);
122 s3c2410_baseclk_add();
123}
124
125#ifdef CONFIG_PM
126
127static struct sleep_save s3c244x_sleep[] = {
128 SAVE_ITEM(S3C2440_DSC0),
129 SAVE_ITEM(S3C2440_DSC1),
130 SAVE_ITEM(S3C2440_GPJDAT),
131 SAVE_ITEM(S3C2440_GPJCON),
132 SAVE_ITEM(S3C2440_GPJUP)
133};
134
135static int s3c244x_suspend(struct sys_device *dev, pm_message_t state)
136{
137 s3c2410_pm_do_save(s3c244x_sleep, ARRAY_SIZE(s3c244x_sleep));
138 return 0;
139}
140
141static int s3c244x_resume(struct sys_device *dev)
142{
143 s3c2410_pm_do_restore(s3c244x_sleep, ARRAY_SIZE(s3c244x_sleep));
144 return 0;
145}
146
147#else
148#define s3c244x_suspend NULL
149#define s3c244x_resume NULL
150#endif
151
152/* Since the S3C2442 and S3C2440 share items, put both sysclasses here */
153
154struct sysdev_class s3c2440_sysclass = {
155 set_kset_name("s3c2440-core"),
156 .suspend = s3c244x_suspend,
157 .resume = s3c244x_resume
158};
159
160struct sysdev_class s3c2442_sysclass = {
161 set_kset_name("s3c2442-core"),
162 .suspend = s3c244x_suspend,
163 .resume = s3c244x_resume
164};
165
166/* need to register class before we actually register the device, and
167 * we also need to ensure that it has been initialised before any of the
168 * drivers even try to use it (even if not on an s3c2440 based system)
169 * as a driver which may support both 2410 and 2440 may try and use it.
170*/
171
172static int __init s3c2440_core_init(void)
173{
174 return sysdev_class_register(&s3c2440_sysclass);
175}
176
177core_initcall(s3c2440_core_init);
178
179static int __init s3c2442_core_init(void)
180{
181 return sysdev_class_register(&s3c2442_sysclass);
182}
183
184core_initcall(s3c2442_core_init);