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Linux/arch/arm/mach-s3c24xx/mach-amlm5900.c

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  1 // SPDX-License-Identifier: GPL-2.0+
  2 //
  3 // Copyright (c) 2006 American Microsystems Limited
  4 //      David Anders <danders@amltd.com>
  5 //
  6 // @History:
  7 // derived from linux/arch/arm/mach-s3c2410/mach-bast.c, written by
  8 // Ben Dooks <ben@simtec.co.uk>
  9 
 10 #include <linux/kernel.h>
 11 #include <linux/types.h>
 12 #include <linux/interrupt.h>
 13 #include <linux/list.h>
 14 #include <linux/timer.h>
 15 #include <linux/init.h>
 16 #include <linux/gpio.h>
 17 #include <linux/device.h>
 18 #include <linux/platform_device.h>
 19 #include <linux/proc_fs.h>
 20 #include <linux/serial_core.h>
 21 #include <linux/serial_s3c.h>
 22 #include <linux/io.h>
 23 
 24 #include <asm/mach/arch.h>
 25 #include <asm/mach/map.h>
 26 #include <asm/mach/irq.h>
 27 #include <asm/mach/flash.h>
 28 
 29 #include <mach/hardware.h>
 30 #include <asm/irq.h>
 31 #include <asm/mach-types.h>
 32 #include <mach/fb.h>
 33 
 34 #include <mach/regs-lcd.h>
 35 #include <mach/regs-gpio.h>
 36 #include <mach/gpio-samsung.h>
 37 
 38 #include <linux/platform_data/i2c-s3c2410.h>
 39 #include <plat/devs.h>
 40 #include <plat/cpu.h>
 41 #include <plat/gpio-cfg.h>
 42 
 43 #include <linux/mtd/mtd.h>
 44 #include <linux/mtd/partitions.h>
 45 #include <linux/mtd/map.h>
 46 #include <linux/mtd/physmap.h>
 47 
 48 #include <plat/samsung-time.h>
 49 
 50 #include "common.h"
 51 
 52 static struct resource amlm5900_nor_resource =
 53                         DEFINE_RES_MEM(0x00000000, SZ_16M);
 54 
 55 static struct mtd_partition amlm5900_mtd_partitions[] = {
 56         {
 57                 .name           = "System",
 58                 .size           = 0x240000,
 59                 .offset         = 0,
 60                 .mask_flags     = MTD_WRITEABLE,  /* force read-only */
 61         }, {
 62                 .name           = "Kernel",
 63                 .size           = 0x100000,
 64                 .offset         = MTDPART_OFS_APPEND,
 65         }, {
 66                 .name           = "Ramdisk",
 67                 .size           = 0x300000,
 68                 .offset         = MTDPART_OFS_APPEND,
 69         }, {
 70                 .name           = "JFFS2",
 71                 .size           = 0x9A0000,
 72                 .offset         = MTDPART_OFS_APPEND,
 73         }, {
 74                 .name           = "Settings",
 75                 .size           = MTDPART_SIZ_FULL,
 76                 .offset         = MTDPART_OFS_APPEND,
 77         }
 78 };
 79 
 80 static struct physmap_flash_data amlm5900_flash_data = {
 81         .width          = 2,
 82         .parts          = amlm5900_mtd_partitions,
 83         .nr_parts       = ARRAY_SIZE(amlm5900_mtd_partitions),
 84 };
 85 
 86 static struct platform_device amlm5900_device_nor = {
 87         .name           = "physmap-flash",
 88         .id             = 0,
 89         .dev = {
 90                         .platform_data = &amlm5900_flash_data,
 91                 },
 92         .num_resources  = 1,
 93         .resource       = &amlm5900_nor_resource,
 94 };
 95 
 96 static struct map_desc amlm5900_iodesc[] __initdata = {
 97 };
 98 
 99 #define UCON S3C2410_UCON_DEFAULT
100 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
101 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
102 
103 static struct s3c2410_uartcfg amlm5900_uartcfgs[] = {
104         [0] = {
105                 .hwport      = 0,
106                 .flags       = 0,
107                 .ucon        = UCON,
108                 .ulcon       = ULCON,
109                 .ufcon       = UFCON,
110         },
111         [1] = {
112                 .hwport      = 1,
113                 .flags       = 0,
114                 .ucon        = UCON,
115                 .ulcon       = ULCON,
116                 .ufcon       = UFCON,
117         },
118         [2] = {
119                 .hwport      = 2,
120                 .flags       = 0,
121                 .ucon        = UCON,
122                 .ulcon       = ULCON,
123                 .ufcon       = UFCON,
124         }
125 };
126 
127 
128 static struct platform_device *amlm5900_devices[] __initdata = {
129 #ifdef CONFIG_FB_S3C2410
130         &s3c_device_lcd,
131 #endif
132         &s3c_device_adc,
133         &s3c_device_wdt,
134         &s3c_device_i2c0,
135         &s3c_device_ohci,
136         &s3c_device_rtc,
137         &s3c_device_usbgadget,
138         &s3c_device_sdi,
139         &amlm5900_device_nor,
140 };
141 
142 static void __init amlm5900_map_io(void)
143 {
144         s3c24xx_init_io(amlm5900_iodesc, ARRAY_SIZE(amlm5900_iodesc));
145         s3c24xx_init_uarts(amlm5900_uartcfgs, ARRAY_SIZE(amlm5900_uartcfgs));
146         samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
147 }
148 
149 static void __init amlm5900_init_time(void)
150 {
151         s3c2410_init_clocks(12000000);
152         samsung_timer_init();
153 }
154 
155 #ifdef CONFIG_FB_S3C2410
156 static struct s3c2410fb_display __initdata amlm5900_lcd_info = {
157         .width          = 160,
158         .height         = 160,
159 
160         .type           = S3C2410_LCDCON1_STN4,
161 
162         .pixclock       = 680000, /* HCLK = 100MHz */
163         .xres           = 160,
164         .yres           = 160,
165         .bpp            = 4,
166         .left_margin    = 1 << (4 + 3),
167         .right_margin   = 8 << 3,
168         .hsync_len      = 48,
169         .upper_margin   = 0,
170         .lower_margin   = 0,
171 
172         .lcdcon5        = 0x00000001,
173 };
174 
175 static struct s3c2410fb_mach_info __initdata amlm5900_fb_info = {
176 
177         .displays = &amlm5900_lcd_info,
178         .num_displays = 1,
179         .default_display = 0,
180 
181         .gpccon =       0xaaaaaaaa,
182         .gpccon_mask =  0xffffffff,
183         .gpcup =        0x0000ffff,
184         .gpcup_mask =   0xffffffff,
185 
186         .gpdcon =       0xaaaaaaaa,
187         .gpdcon_mask =  0xffffffff,
188         .gpdup =        0x0000ffff,
189         .gpdup_mask =   0xffffffff,
190 };
191 #endif
192 
193 static irqreturn_t
194 amlm5900_wake_interrupt(int irq, void *ignored)
195 {
196         return IRQ_HANDLED;
197 }
198 
199 static void amlm5900_init_pm(void)
200 {
201         int ret = 0;
202 
203         ret = request_irq(IRQ_EINT9, &amlm5900_wake_interrupt,
204                                 IRQF_TRIGGER_RISING | IRQF_SHARED,
205                                 "amlm5900_wakeup", &amlm5900_wake_interrupt);
206         if (ret != 0) {
207                 printk(KERN_ERR "AML-M5900: no wakeup irq, %d?\n", ret);
208         } else {
209                 enable_irq_wake(IRQ_EINT9);
210                 /* configure the suspend/resume status pin */
211                 s3c_gpio_cfgpin(S3C2410_GPF(2), S3C2410_GPIO_OUTPUT);
212                 s3c_gpio_setpull(S3C2410_GPF(2), S3C_GPIO_PULL_UP);
213         }
214 }
215 static void __init amlm5900_init(void)
216 {
217         amlm5900_init_pm();
218 #ifdef CONFIG_FB_S3C2410
219         s3c24xx_fb_set_platdata(&amlm5900_fb_info);
220 #endif
221         s3c_i2c0_set_platdata(NULL);
222         platform_add_devices(amlm5900_devices, ARRAY_SIZE(amlm5900_devices));
223 }
224 
225 MACHINE_START(AML_M5900, "AML_M5900")
226         .atag_offset    = 0x100,
227         .map_io         = amlm5900_map_io,
228         .init_irq       = s3c2410_init_irq,
229         .init_machine   = amlm5900_init,
230         .init_time      = amlm5900_init_time,
231 MACHINE_END
232 

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