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

   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/machine.h>
  17 #include <linux/gpio.h>
  18 #include <linux/device.h>
  19 #include <linux/platform_device.h>
  20 #include <linux/proc_fs.h>
  21 #include <linux/serial_core.h>
  22 #include <linux/serial_s3c.h>
  23 #include <linux/io.h>
  24
  25 #include <asm/mach/arch.h>
  26 #include <asm/mach/map.h>
  27 #include <asm/mach/irq.h>
  28 #include <asm/mach/flash.h>
  29
  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 "common.h"
  49
  50 static struct resource amlm5900_nor_resource =
  51                         DEFINE_RES_MEM(0x00000000, SZ_16M);
  52
  53 static struct mtd_partition amlm5900_mtd_partitions[] = {
  54         {
  55                 .name           = "System",
  56                 .size           = 0x240000,
  57                 .offset         = 0,
  58                 .mask_flags     = MTD_WRITEABLE,  /* force read-only */
  59         }, {
  60                 .name           = "Kernel",
  61                 .size           = 0x100000,
  62                 .offset         = MTDPART_OFS_APPEND,
  63         }, {
  64                 .name           = "Ramdisk",
  65                 .size           = 0x300000,
  66                 .offset         = MTDPART_OFS_APPEND,
  67         }, {
  68                 .name           = "JFFS2",
  69                 .size           = 0x9A0000,
  70                 .offset         = MTDPART_OFS_APPEND,
  71         }, {
  72                 .name           = "Settings",
  73                 .size           = MTDPART_SIZ_FULL,
  74                 .offset         = MTDPART_OFS_APPEND,
  75         }
  76 };
  77
  78 static struct physmap_flash_data amlm5900_flash_data = {
  79         .width          = 2,
  80         .parts          = amlm5900_mtd_partitions,
  81         .nr_parts       = ARRAY_SIZE(amlm5900_mtd_partitions),
  82 };
  83
  84 static struct platform_device amlm5900_device_nor = {
  85         .name           = "physmap-flash",
  86         .id             = 0,
  87         .dev = {
  88                         .platform_data = &amlm5900_flash_data,
  89                 },
  90         .num_resources  = 1,
  91         .resource       = &amlm5900_nor_resource,
  92 };
  93
  94 static struct map_desc amlm5900_iodesc[] __initdata = {
  95 };
  96
  97 #define UCON S3C2410_UCON_DEFAULT
  98 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  99 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
 100
 101 static struct s3c2410_uartcfg amlm5900_uartcfgs[] = {
 102         [0] = {
 103                 .hwport      = 0,
 104                 .flags       = 0,
 105                 .ucon        = UCON,
 106                 .ulcon       = ULCON,
 107                 .ufcon       = UFCON,
 108         },
 109         [1] = {
 110                 .hwport      = 1,
 111                 .flags       = 0,
 112                 .ucon        = UCON,
 113                 .ulcon       = ULCON,
 114                 .ufcon       = UFCON,
 115         },
 116         [2] = {
 117                 .hwport      = 2,
 118                 .flags       = 0,
 119                 .ucon        = UCON,
 120                 .ulcon       = ULCON,
 121                 .ufcon       = UFCON,
 122         }
 123 };
 124
 125 static struct gpiod_lookup_table amlm5900_mmc_gpio_table = {
 126         .dev_id = "s3c2410-sdi",
 127         .table = {
 128                 /* bus pins */
 129                 GPIO_LOOKUP_IDX("GPIOE",  5, "bus", 0, GPIO_ACTIVE_HIGH),
 130                 GPIO_LOOKUP_IDX("GPIOE",  6, "bus", 1, GPIO_ACTIVE_HIGH),
 131                 GPIO_LOOKUP_IDX("GPIOE",  7, "bus", 2, GPIO_ACTIVE_HIGH),
 132                 GPIO_LOOKUP_IDX("GPIOE",  8, "bus", 3, GPIO_ACTIVE_HIGH),
 133                 GPIO_LOOKUP_IDX("GPIOE",  9, "bus", 4, GPIO_ACTIVE_HIGH),
 134                 GPIO_LOOKUP_IDX("GPIOE", 10, "bus", 5, GPIO_ACTIVE_HIGH),
 135                 { },
 136         },
 137 };
 138
 139 static struct platform_device *amlm5900_devices[] __initdata = {
 140 #ifdef CONFIG_FB_S3C2410
 141         &s3c_device_lcd,
 142 #endif
 143         &s3c_device_adc,
 144         &s3c_device_wdt,
 145         &s3c_device_i2c0,
 146         &s3c_device_ohci,
 147         &s3c_device_rtc,
 148         &s3c_device_usbgadget,
 149         &s3c_device_sdi,
 150         &amlm5900_device_nor,
 151 };
 152
 153 static void __init amlm5900_map_io(void)
 154 {
 155         s3c24xx_init_io(amlm5900_iodesc, ARRAY_SIZE(amlm5900_iodesc));
 156         s3c24xx_init_uarts(amlm5900_uartcfgs, ARRAY_SIZE(amlm5900_uartcfgs));
 157         samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 158 }
 159
 160 static void __init amlm5900_init_time(void)
 161 {
 162         s3c2410_init_clocks(12000000);
 163         samsung_timer_init();
 164 }
 165
 166 #ifdef CONFIG_FB_S3C2410
 167 static struct s3c2410fb_display __initdata amlm5900_lcd_info = {
 168         .width          = 160,
 169         .height         = 160,
 170
 171         .type           = S3C2410_LCDCON1_STN4,
 172
 173         .pixclock       = 680000, /* HCLK = 100MHz */
 174         .xres           = 160,
 175         .yres           = 160,
 176         .bpp            = 4,
 177         .left_margin    = 1 << (4 + 3),
 178         .right_margin   = 8 << 3,
 179         .hsync_len      = 48,
 180         .upper_margin   = 0,
 181         .lower_margin   = 0,
 182
 183         .lcdcon5        = 0x00000001,
 184 };
 185
 186 static struct s3c2410fb_mach_info __initdata amlm5900_fb_info = {
 187
 188         .displays = &amlm5900_lcd_info,
 189         .num_displays = 1,
 190         .default_display = 0,
 191
 192         .gpccon =       0xaaaaaaaa,
 193         .gpccon_mask =  0xffffffff,
 194         .gpcup =        0x0000ffff,
 195         .gpcup_mask =   0xffffffff,
 196
 197         .gpdcon =       0xaaaaaaaa,
 198         .gpdcon_mask =  0xffffffff,
 199         .gpdup =        0x0000ffff,
 200         .gpdup_mask =   0xffffffff,
 201 };
 202 #endif
 203
 204 static irqreturn_t
 205 amlm5900_wake_interrupt(int irq, void *ignored)
 206 {
 207         return IRQ_HANDLED;
 208 }
 209
 210 static void amlm5900_init_pm(void)
 211 {
 212         int ret = 0;
 213
 214         ret = request_irq(IRQ_EINT9, &amlm5900_wake_interrupt,
 215                                 IRQF_TRIGGER_RISING | IRQF_SHARED,
 216                                 "amlm5900_wakeup", &amlm5900_wake_interrupt);
 217         if (ret != 0) {
 218                 printk(KERN_ERR "AML-M5900: no wakeup irq, %d?\n", ret);
 219         } else {
 220                 enable_irq_wake(IRQ_EINT9);
 221                 /* configure the suspend/resume status pin */
 222                 s3c_gpio_cfgpin(S3C2410_GPF(2), S3C2410_GPIO_OUTPUT);
 223                 s3c_gpio_setpull(S3C2410_GPF(2), S3C_GPIO_PULL_UP);
 224         }
 225 }
 226 static void __init amlm5900_init(void)
 227 {
 228         amlm5900_init_pm();
 229 #ifdef CONFIG_FB_S3C2410
 230         s3c24xx_fb_set_platdata(&amlm5900_fb_info);
 231 #endif
 232         s3c_i2c0_set_platdata(NULL);
 233         gpiod_add_lookup_table(&amlm5900_mmc_gpio_table);
 234         platform_add_devices(amlm5900_devices, ARRAY_SIZE(amlm5900_devices));
 235 }
 236
 237 MACHINE_START(AML_M5900, "AML_M5900")
 238         .atag_offset    = 0x100,
 239         .map_io         = amlm5900_map_io,
 240         .init_irq       = s3c2410_init_irq,
 241         .init_machine   = amlm5900_init,
 242         .init_time      = amlm5900_init_time,
 243 MACHINE_END