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gerrit-public.fairphone.software / kernel / msm / 6826d3e80d143ca7411fd2dca05bc57c7ed3e620 / . / arch / arm / mach-nuc93x / cpu.c
blob: f6ff5d87354c892369f28c468fe5e6ec6d0a4be2 [file] [log] [blame]
wanzongshuna62e9032009-12-31 15:06:05 +0100[diff] [blame]1/*
2 * linux/arch/arm/mach-nuc93x/cpu.c
3 *
4 * Copyright (c) 2009 Nuvoton corporation.
5 *
6 * Wan ZongShun <mcuos.com@gmail.com>
7 *
8 * NUC93x series cpu common support
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation;version 2 of the License.
13 *
14 */
15
16#include <linux/kernel.h>
17#include <linux/types.h>
18#include <linux/interrupt.h>
19#include <linux/list.h>
20#include <linux/timer.h>
21#include <linux/init.h>
22#include <linux/platform_device.h>
23#include <linux/io.h>
24#include <linux/serial_8250.h>
25#include <linux/delay.h>
26
27#include <asm/mach/arch.h>
28#include <asm/mach/map.h>
29#include <asm/mach/irq.h>
30#include <asm/irq.h>
31
32#include <mach/hardware.h>
33#include <mach/regs-serial.h>
34#include <mach/regs-clock.h>
35#include <mach/regs-ebi.h>
36
37#include "cpu.h"
38#include "clock.h"
39
40/* Initial IO mappings */
41
42static struct map_desc nuc93x_iodesc[] __initdata = {
43 IODESC_ENT(IRQ),
44 IODESC_ENT(GCR),
45 IODESC_ENT(UART),
46 IODESC_ENT(TIMER),
47 IODESC_ENT(EBI),
48};
49
50/* Initial nuc932 clock declarations. */
51static DEFINE_CLK(audio, 2);
52static DEFINE_CLK(sd, 3);
53static DEFINE_CLK(jpg, 4);
54static DEFINE_CLK(video, 5);
55static DEFINE_CLK(vpost, 6);
56static DEFINE_CLK(2d, 7);
57static DEFINE_CLK(gpu, 8);
58static DEFINE_CLK(gdma, 9);
59static DEFINE_CLK(adc, 10);
60static DEFINE_CLK(uart, 11);
61static DEFINE_CLK(spi, 12);
62static DEFINE_CLK(pwm, 13);
63static DEFINE_CLK(timer, 14);
64static DEFINE_CLK(wdt, 15);
65static DEFINE_CLK(ac97, 16);
66static DEFINE_CLK(i2s, 16);
67static DEFINE_CLK(usbck, 17);
68static DEFINE_CLK(usb48, 18);
69static DEFINE_CLK(usbh, 19);
70static DEFINE_CLK(i2c, 20);
71static DEFINE_CLK(ext, 0);
72
73static struct clk_lookup nuc932_clkregs[] = {
74 DEF_CLKLOOK(&clk_audio, "nuc932-audio", NULL),
75 DEF_CLKLOOK(&clk_sd, "nuc932-sd", NULL),
76 DEF_CLKLOOK(&clk_jpg, "nuc932-jpg", "NULL"),
77 DEF_CLKLOOK(&clk_video, "nuc932-video", "NULL"),
78 DEF_CLKLOOK(&clk_vpost, "nuc932-vpost", NULL),
79 DEF_CLKLOOK(&clk_2d, "nuc932-2d", NULL),
80 DEF_CLKLOOK(&clk_gpu, "nuc932-gpu", NULL),
81 DEF_CLKLOOK(&clk_gdma, "nuc932-gdma", "NULL"),
82 DEF_CLKLOOK(&clk_adc, "nuc932-adc", NULL),
83 DEF_CLKLOOK(&clk_uart, NULL, "uart"),
84 DEF_CLKLOOK(&clk_spi, "nuc932-spi", NULL),
85 DEF_CLKLOOK(&clk_pwm, "nuc932-pwm", NULL),
86 DEF_CLKLOOK(&clk_timer, NULL, "timer"),
87 DEF_CLKLOOK(&clk_wdt, "nuc932-wdt", NULL),
88 DEF_CLKLOOK(&clk_ac97, "nuc932-ac97", NULL),
89 DEF_CLKLOOK(&clk_i2s, "nuc932-i2s", NULL),
90 DEF_CLKLOOK(&clk_usbck, "nuc932-usbck", NULL),
91 DEF_CLKLOOK(&clk_usb48, "nuc932-usb48", NULL),
92 DEF_CLKLOOK(&clk_usbh, "nuc932-usbh", NULL),
93 DEF_CLKLOOK(&clk_i2c, "nuc932-i2c", NULL),
94 DEF_CLKLOOK(&clk_ext, NULL, "ext"),
95};
96
97/* Initial serial platform data */
98
99struct plat_serial8250_port nuc93x_uart_data[] = {
100 NUC93X_8250PORT(UART0),
101 {},
102};
103
104struct platform_device nuc93x_serial_device = {
105 .name = "serial8250",
106 .id = PLAT8250_DEV_PLATFORM,
107 .dev = {
108 .platform_data = nuc93x_uart_data,
109 },
110};
111
112/*Init NUC93x evb io*/
113
114void __init nuc93x_map_io(struct map_desc *mach_desc, int mach_size)
115{
116 unsigned long idcode = 0x0;
117
118 iotable_init(mach_desc, mach_size);
119 iotable_init(nuc93x_iodesc, ARRAY_SIZE(nuc93x_iodesc));
120
121 idcode = __raw_readl(NUC93XPDID);
122 if (idcode == NUC932_CPUID)
123 printk(KERN_INFO "CPU type 0x%08lx is NUC910\n", idcode);
124 else
125 printk(KERN_ERR "CPU type detect error!\n");
126
127}
128
129/*Init NUC93x clock*/
130
131void __init nuc93x_init_clocks(void)
132{
133 clks_register(nuc932_clkregs, ARRAY_SIZE(nuc932_clkregs));
134}
135