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1 // SPDX-License-Identifier: GPL-2.0
2 //
3 // Copyright (c) 2008 Ramax Lo <ramaxlo@gmail.com>
4 //      Based on mach-anubis.c by Ben Dooks <ben@simtec.co.uk>
5 //      and modifications by SBZ <sbz@spgui.org> and
6 //      Weibing <http://weibing.blogbus.com>
7 //
8 // For product information, visit http://www.arm.com/
9 
10 #include <linux/kernel.h>
11 #include <linux/types.h>
12 #include <linux/gpio/machine.h>
13 #include <linux/interrupt.h>
14 #include <linux/list.h>
15 #include <linux/timer.h>
16 #include <linux/init.h>
17 #include <linux/io.h>
18 #include <linux/serial_core.h>
19 #include <linux/serial_s3c.h>
20 #include <linux/dm9000.h>
21 #include <linux/platform_device.h>
22 
23 #include <asm/mach/arch.h>
24 #include <asm/mach/map.h>
25 #include <asm/mach/irq.h>
26 
27 #include <linux/platform_data/fb-s3c2410.h>
28 #include <asm/irq.h>
29 #include <asm/mach-types.h>
30 
31 #include "regs-gpio.h"
32 #include "gpio-samsung.h"
33 #include <linux/platform_data/mtd-nand-s3c2410.h>
34 #include <linux/platform_data/i2c-s3c2410.h>
35 
36 #include <linux/mtd/mtd.h>
37 #include <linux/mtd/rawnand.h>
38 #include <linux/mtd/nand_ecc.h>
39 #include <linux/mtd/partitions.h>
40 
41 #include "devs.h"
42 #include "cpu.h"
43 #include <linux/platform_data/mmc-s3cmci.h>
44 
45 #include "s3c24xx.h"
46 
47 static struct map_desc at2440evb_iodesc[] __initdata = {
48 	/* Nothing here */
49 };
50 
51 #define UCON S3C2410_UCON_DEFAULT
52 #define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE)
53 #define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
54 
55 static struct s3c2410_uartcfg at2440evb_uartcfgs[] __initdata = {
56 	[0] = {
57 		.hwport	     = 0,
58 		.flags	     = 0,
59 		.ucon	     = UCON,
60 		.ulcon	     = ULCON,
61 		.ufcon	     = UFCON,
62 		.clk_sel	= S3C2410_UCON_CLKSEL1 | S3C2410_UCON_CLKSEL2,
63 	},
64 	[1] = {
65 		.hwport	     = 1,
66 		.flags	     = 0,
67 		.ucon	     = UCON,
68 		.ulcon	     = ULCON,
69 		.ufcon	     = UFCON,
70 		.clk_sel	= S3C2410_UCON_CLKSEL1 | S3C2410_UCON_CLKSEL2,
71 	},
72 };
73 
74 /* NAND Flash on AT2440EVB board */
75 
76 static struct mtd_partition __initdata at2440evb_default_nand_part[] = {
77 	[0] = {
78 		.name	= "Boot Agent",
79 		.size	= SZ_256K,
80 		.offset	= 0,
81 	},
82 	[1] = {
83 		.name	= "Kernel",
84 		.size	= SZ_2M,
85 		.offset	= SZ_256K,
86 	},
87 	[2] = {
88 		.name	= "Root",
89 		.offset	= SZ_256K + SZ_2M,
90 		.size	= MTDPART_SIZ_FULL,
91 	},
92 };
93 
94 static struct s3c2410_nand_set __initdata at2440evb_nand_sets[] = {
95 	[0] = {
96 		.name		= "nand",
97 		.nr_chips	= 1,
98 		.nr_partitions	= ARRAY_SIZE(at2440evb_default_nand_part),
99 		.partitions	= at2440evb_default_nand_part,
100 	},
101 };
102 
103 static struct s3c2410_platform_nand __initdata at2440evb_nand_info = {
104 	.tacls		= 25,
105 	.twrph0		= 55,
106 	.twrph1		= 40,
107 	.nr_sets	= ARRAY_SIZE(at2440evb_nand_sets),
108 	.sets		= at2440evb_nand_sets,
109 	.engine_type	= NAND_ECC_ENGINE_TYPE_SOFT,
110 };
111 
112 /* DM9000AEP 10/100 ethernet controller */
113 
114 static struct resource at2440evb_dm9k_resource[] = {
115 	[0] = DEFINE_RES_MEM(S3C2410_CS3, 4),
116 	[1] = DEFINE_RES_MEM(S3C2410_CS3 + 4, 4),
117 	[2] = DEFINE_RES_NAMED(IRQ_EINT7, 1, NULL, IORESOURCE_IRQ \
118 					| IORESOURCE_IRQ_HIGHEDGE),
119 };
120 
121 static struct dm9000_plat_data at2440evb_dm9k_pdata = {
122 	.flags		= (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
123 };
124 
125 static struct platform_device at2440evb_device_eth = {
126 	.name		= "dm9000",
127 	.id		= -1,
128 	.num_resources	= ARRAY_SIZE(at2440evb_dm9k_resource),
129 	.resource	= at2440evb_dm9k_resource,
130 	.dev		= {
131 		.platform_data	= &at2440evb_dm9k_pdata,
132 	},
133 };
134 
135 static struct s3c24xx_mci_pdata at2440evb_mci_pdata __initdata = {
136 	.set_power	= s3c24xx_mci_def_set_power,
137 };
138 
139 static struct gpiod_lookup_table at2440evb_mci_gpio_table = {
140 	.dev_id = "s3c2410-sdi",
141 	.table = {
142 		/* Card detect S3C2410_GPG(10) */
143 		GPIO_LOOKUP("GPIOG", 10, "cd", GPIO_ACTIVE_LOW),
144 		/* bus pins */
145 		GPIO_LOOKUP_IDX("GPIOE",  5, "bus", 0, GPIO_ACTIVE_HIGH),
146 		GPIO_LOOKUP_IDX("GPIOE",  6, "bus", 1, GPIO_ACTIVE_HIGH),
147 		GPIO_LOOKUP_IDX("GPIOE",  7, "bus", 2, GPIO_ACTIVE_HIGH),
148 		GPIO_LOOKUP_IDX("GPIOE",  8, "bus", 3, GPIO_ACTIVE_HIGH),
149 		GPIO_LOOKUP_IDX("GPIOE",  9, "bus", 4, GPIO_ACTIVE_HIGH),
150 		GPIO_LOOKUP_IDX("GPIOE", 10, "bus", 5, GPIO_ACTIVE_HIGH),
151 		{ },
152 	},
153 };
154 
155 
156 /* 7" LCD panel */
157 
158 static struct s3c2410fb_display at2440evb_lcd_cfg __initdata = {
159 
160 	.lcdcon5	= S3C2410_LCDCON5_FRM565 |
161 			  S3C2410_LCDCON5_INVVLINE |
162 			  S3C2410_LCDCON5_INVVFRAME |
163 			  S3C2410_LCDCON5_PWREN |
164 			  S3C2410_LCDCON5_HWSWP,
165 
166 	.type		= S3C2410_LCDCON1_TFT,
167 
168 	.width		= 800,
169 	.height		= 480,
170 
171 	.pixclock	= 33333, /* HCLK 60 MHz, divisor 2 */
172 	.xres		= 800,
173 	.yres		= 480,
174 	.bpp		= 16,
175 	.left_margin	= 88,
176 	.right_margin	= 40,
177 	.hsync_len	= 128,
178 	.upper_margin	= 32,
179 	.lower_margin	= 11,
180 	.vsync_len	= 2,
181 };
182 
183 static struct s3c2410fb_mach_info at2440evb_fb_info __initdata = {
184 	.displays	= &at2440evb_lcd_cfg,
185 	.num_displays	= 1,
186 	.default_display = 0,
187 };
188 
189 static struct platform_device *at2440evb_devices[] __initdata = {
190 	&s3c_device_ohci,
191 	&s3c_device_wdt,
192 	&s3c_device_adc,
193 	&s3c_device_i2c0,
194 	&s3c_device_rtc,
195 	&s3c_device_nand,
196 	&s3c_device_sdi,
197 	&s3c_device_lcd,
198 	&at2440evb_device_eth,
199 };
200 
at2440evb_map_io(void)201 static void __init at2440evb_map_io(void)
202 {
203 	s3c24xx_init_io(at2440evb_iodesc, ARRAY_SIZE(at2440evb_iodesc));
204 	s3c24xx_init_uarts(at2440evb_uartcfgs, ARRAY_SIZE(at2440evb_uartcfgs));
205 	s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4);
206 }
207 
at2440evb_init_time(void)208 static void __init at2440evb_init_time(void)
209 {
210 	s3c2440_init_clocks(16934400);
211 	s3c24xx_timer_init();
212 }
213 
at2440evb_init(void)214 static void __init at2440evb_init(void)
215 {
216 	s3c24xx_fb_set_platdata(&at2440evb_fb_info);
217 	gpiod_add_lookup_table(&at2440evb_mci_gpio_table);
218 	s3c24xx_mci_set_platdata(&at2440evb_mci_pdata);
219 	s3c_nand_set_platdata(&at2440evb_nand_info);
220 	s3c_i2c0_set_platdata(NULL);
221 
222 	platform_add_devices(at2440evb_devices, ARRAY_SIZE(at2440evb_devices));
223 }
224 
225 
226 MACHINE_START(AT2440EVB, "AT2440EVB")
227 	.atag_offset	= 0x100,
228 	.map_io		= at2440evb_map_io,
229 	.init_machine	= at2440evb_init,
230 	.init_irq	= s3c2440_init_irq,
231 	.init_time	= at2440evb_init_time,
232 MACHINE_END
233