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_BYTE,
47 .pfn = __phys_to_pfn(S3C2410_CS2),
48 .length = 0x10000,
49 .type = MT_DEVICE,
50 }, {
51 .virtual = (u32)S3C24XX_VA_ISA_BYTE + 0x10000,
52 .pfn = __phys_to_pfn(S3C2410_CS2 + (1<<24)),
53 .length = SZ_4M,
54 .type = MT_DEVICE,
55 }
56 };
57
58 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
59 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
60 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
61
62 static struct s3c2410_uartcfg smdk2440_uartcfgs[] __initdata = {
63 [0] = {
64 .hwport = 0,
65 .flags = 0,
66 .ucon = 0x3c5,
67 .ulcon = 0x03,
68 .ufcon = 0x51,
69 },
70 [1] = {
71 .hwport = 1,
72 .flags = 0,
73 .ucon = 0x3c5,
74 .ulcon = 0x03,
75 .ufcon = 0x51,
76 },
77 /* IR port */
78 [2] = {
79 .hwport = 2,
80 .flags = 0,
81 .ucon = 0x3c5,
82 .ulcon = 0x43,
83 .ufcon = 0x51,
84 }
85 };
86
87 /* LCD driver info */
88
89 static struct s3c2410fb_display smdk2440_lcd_cfg __initdata = {
90
91 .lcdcon5 = S3C2410_LCDCON5_FRM565 |
92 S3C2410_LCDCON5_INVVLINE |
93 S3C2410_LCDCON5_INVVFRAME |
94 S3C2410_LCDCON5_PWREN |
95 S3C2410_LCDCON5_HWSWP,
96
97 .type = S3C2410_LCDCON1_TFT,
98
99 .width = 240,
100 .height = 320,
101
102 .pixclock = 166667, /* HCLK 60 MHz, divisor 10 */
103 .xres = 240,
104 .yres = 320,
105 .bpp = 16,
106 .left_margin = 20,
107 .right_margin = 8,
108 .hsync_len = 4,
109 .upper_margin = 8,
110 .lower_margin = 7,
111 .vsync_len = 4,
112 };
113
114 static struct s3c2410fb_mach_info smdk2440_fb_info __initdata = {
115 .displays = &smdk2440_lcd_cfg,
116 .num_displays = 1,
117 .default_display = 0,
118
119 #if 0
120 /* currently setup by downloader */
121 .gpccon = 0xaa940659,
122 .gpccon_mask = 0xffffffff,
123 .gpcup = 0x0000ffff,
124 .gpcup_mask = 0xffffffff,
125 .gpdcon = 0xaa84aaa0,
126 .gpdcon_mask = 0xffffffff,
127 .gpdup = 0x0000faff,
128 .gpdup_mask = 0xffffffff,
129
130 .gpccon_reg = S3C2410_GPCCON,
131 .gpcup_reg = S3C2410_GPCUP,
132 .gpdcon_reg = S3C2410_GPDCON,
133 .gpdup_reg = S3C2410_GPDUP,
134 #endif
135
136 .lpcsel = ((0xCE6) & ~7) | 1<<4,
137 };
138
139 static struct platform_device *smdk2440_devices[] __initdata = {
140 &s3c_device_ohci,
141 &s3c_device_lcd,
142 &s3c_device_wdt,
143 &s3c_device_i2c0,
144 &s3c_device_iis,
145 };
146
smdk2440_map_io(void)147 static void __init smdk2440_map_io(void)
148 {
149 s3c24xx_init_io(smdk2440_iodesc, ARRAY_SIZE(smdk2440_iodesc));
150 s3c24xx_init_uarts(smdk2440_uartcfgs, ARRAY_SIZE(smdk2440_uartcfgs));
151 s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4);
152 }
153
smdk2440_init_time(void)154 static void __init smdk2440_init_time(void)
155 {
156 s3c2440_init_clocks(16934400);
157 s3c24xx_timer_init();
158 }
159
smdk2440_machine_init(void)160 static void __init smdk2440_machine_init(void)
161 {
162 s3c24xx_fb_set_platdata(&smdk2440_fb_info);
163 s3c_i2c0_set_platdata(NULL);
164 /* Configure the I2S pins (GPE0...GPE4) in correct mode */
165 s3c_gpio_cfgall_range(S3C2410_GPE(0), 5, S3C_GPIO_SFN(2),
166 S3C_GPIO_PULL_NONE);
167 platform_add_devices(smdk2440_devices, ARRAY_SIZE(smdk2440_devices));
168 smdk_machine_init();
169 }
170
171 MACHINE_START(S3C2440, "SMDK2440")
172 /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
173 .atag_offset = 0x100,
174 .nr_irqs = NR_IRQS_S3C2440,
175
176 .init_irq = s3c2440_init_irq,
177 .map_io = smdk2440_map_io,
178 .init_machine = smdk2440_machine_init,
179 .init_time = smdk2440_init_time,
180 MACHINE_END
181