1 // SPDX-License-Identifier: GPL-2.0
2 // linux/arch/arm/mach-s3c2440/mach-smdk2440.c
3 //
4 // Copyright (c) 2004-2005 Simtec Electronics
5 // Ben Dooks <ben@simtec.co.uk>
6 //
7 // http://www.fluff.org/ben/smdk2440/
8 //
9 // Thanks to Dimity Andric and TomTom for the loan of an SMDK2440.
10
11 #include <linux/kernel.h>
12 #include <linux/types.h>
13 #include <linux/interrupt.h>
14 #include <linux/list.h>
15 #include <linux/timer.h>
16 #include <linux/init.h>
17 #include <linux/serial_core.h>
18 #include <linux/serial_s3c.h>
19 #include <linux/platform_device.h>
20 #include <linux/io.h>
21
22 #include <asm/mach/arch.h>
23 #include <asm/mach/map.h>
24 #include <asm/mach/irq.h>
25
26 #include <asm/irq.h>
27 #include <asm/mach-types.h>
28
29 #include "regs-gpio.h"
30 #include "gpio-samsung.h"
31 #include "gpio-cfg.h"
32
33 #include <linux/platform_data/fb-s3c2410.h>
34 #include <linux/platform_data/i2c-s3c2410.h>
35
36 #include "devs.h"
37 #include "cpu.h"
38
39 #include "s3c24xx.h"
40 #include "common-smdk-s3c24xx.h"
41
42 static struct map_desc smdk2440_iodesc[] __initdata = {
43 /* ISA IO Space map (memory space selected by A24) */
44
45 {
46 .virtual = (u32)S3C24XX_VA_ISA_WORD,
47 .pfn = __phys_to_pfn(S3C2410_CS2),
48 .length = 0x10000,
49 .type = MT_DEVICE,
50 }, {
51 .virtual = (u32)S3C24XX_VA_ISA_WORD + 0x10000,
52 .pfn = __phys_to_pfn(S3C2410_CS2 + (1<<24)),
53 .length = SZ_4M,
54 .type = MT_DEVICE,
55 }, {
56 .virtual = (u32)S3C24XX_VA_ISA_BYTE,
57 .pfn = __phys_to_pfn(S3C2410_CS2),
58 .length = 0x10000,
59 .type = MT_DEVICE,
60 }, {
61 .virtual = (u32)S3C24XX_VA_ISA_BYTE + 0x10000,
62 .pfn = __phys_to_pfn(S3C2410_CS2 + (1<<24)),
63 .length = SZ_4M,
64 .type = MT_DEVICE,
65 }
66 };
67
68 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
69 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
70 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
71
72 static struct s3c2410_uartcfg smdk2440_uartcfgs[] __initdata = {
73 [0] = {
74 .hwport = 0,
75 .flags = 0,
76 .ucon = 0x3c5,
77 .ulcon = 0x03,
78 .ufcon = 0x51,
79 },
80 [1] = {
81 .hwport = 1,
82 .flags = 0,
83 .ucon = 0x3c5,
84 .ulcon = 0x03,
85 .ufcon = 0x51,
86 },
87 /* IR port */
88 [2] = {
89 .hwport = 2,
90 .flags = 0,
91 .ucon = 0x3c5,
92 .ulcon = 0x43,
93 .ufcon = 0x51,
94 }
95 };
96
97 /* LCD driver info */
98
99 static struct s3c2410fb_display smdk2440_lcd_cfg __initdata = {
100
101 .lcdcon5 = S3C2410_LCDCON5_FRM565 |
102 S3C2410_LCDCON5_INVVLINE |
103 S3C2410_LCDCON5_INVVFRAME |
104 S3C2410_LCDCON5_PWREN |
105 S3C2410_LCDCON5_HWSWP,
106
107 .type = S3C2410_LCDCON1_TFT,
108
109 .width = 240,
110 .height = 320,
111
112 .pixclock = 166667, /* HCLK 60 MHz, divisor 10 */
113 .xres = 240,
114 .yres = 320,
115 .bpp = 16,
116 .left_margin = 20,
117 .right_margin = 8,
118 .hsync_len = 4,
119 .upper_margin = 8,
120 .lower_margin = 7,
121 .vsync_len = 4,
122 };
123
124 static struct s3c2410fb_mach_info smdk2440_fb_info __initdata = {
125 .displays = &smdk2440_lcd_cfg,
126 .num_displays = 1,
127 .default_display = 0,
128
129 #if 0
130 /* currently setup by downloader */
131 .gpccon = 0xaa940659,
132 .gpccon_mask = 0xffffffff,
133 .gpcup = 0x0000ffff,
134 .gpcup_mask = 0xffffffff,
135 .gpdcon = 0xaa84aaa0,
136 .gpdcon_mask = 0xffffffff,
137 .gpdup = 0x0000faff,
138 .gpdup_mask = 0xffffffff,
139
140 .gpccon_reg = S3C2410_GPCCON,
141 .gpcup_reg = S3C2410_GPCUP,
142 .gpdcon_reg = S3C2410_GPDCON,
143 .gpdup_reg = S3C2410_GPDUP,
144 #endif
145
146 .lpcsel = ((0xCE6) & ~7) | 1<<4,
147 };
148
149 static struct platform_device *smdk2440_devices[] __initdata = {
150 &s3c_device_ohci,
151 &s3c_device_lcd,
152 &s3c_device_wdt,
153 &s3c_device_i2c0,
154 &s3c_device_iis,
155 };
156
smdk2440_map_io(void)157 static void __init smdk2440_map_io(void)
158 {
159 s3c24xx_init_io(smdk2440_iodesc, ARRAY_SIZE(smdk2440_iodesc));
160 s3c24xx_init_uarts(smdk2440_uartcfgs, ARRAY_SIZE(smdk2440_uartcfgs));
161 s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4);
162 }
163
smdk2440_init_time(void)164 static void __init smdk2440_init_time(void)
165 {
166 s3c2440_init_clocks(16934400);
167 s3c24xx_timer_init();
168 }
169
smdk2440_machine_init(void)170 static void __init smdk2440_machine_init(void)
171 {
172 s3c24xx_fb_set_platdata(&smdk2440_fb_info);
173 s3c_i2c0_set_platdata(NULL);
174 /* Configure the I2S pins (GPE0...GPE4) in correct mode */
175 s3c_gpio_cfgall_range(S3C2410_GPE(0), 5, S3C_GPIO_SFN(2),
176 S3C_GPIO_PULL_NONE);
177 platform_add_devices(smdk2440_devices, ARRAY_SIZE(smdk2440_devices));
178 smdk_machine_init();
179 }
180
181 MACHINE_START(S3C2440, "SMDK2440")
182 /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
183 .atag_offset = 0x100,
184
185 .init_irq = s3c2440_init_irq,
186 .map_io = smdk2440_map_io,
187 .init_machine = smdk2440_machine_init,
188 .init_time = smdk2440_init_time,
189 MACHINE_END
190