arch/arm/mach-s3c/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 <linux/platform_data/fb-s3c2410.h>
  33
  34 #include "regs-gpio.h"
  35 #include "gpio-samsung.h"
  36
  37 #include <linux/platform_data/i2c-s3c2410.h>
  38 #include "devs.h"
  39 #include "cpu.h"
  40 #include "gpio-cfg.h"
  41
  42 #include <linux/mtd/mtd.h>
  43 #include <linux/mtd/partitions.h>
  44 #include <linux/mtd/map.h>
  45 #include <linux/mtd/physmap.h>
  46
  47 #include "s3c24xx.h"
  48
  49 static struct resource amlm5900_nor_resource =
  50                         DEFINE_RES_MEM(0x00000000, SZ_16M);
  51
  52 static struct mtd_partition amlm5900_mtd_partitions[] = {
  53         {
  54                 .name           = "System",
  55                 .size           = 0x240000,
  56                 .offset         = 0,
  57                 .mask_flags     = MTD_WRITEABLE,  /* force read-only */
  58         }, {
  59                 .name           = "Kernel",
  60                 .size           = 0x100000,
  61                 .offset         = MTDPART_OFS_APPEND,
  62         }, {
  63                 .name           = "Ramdisk",
  64                 .size           = 0x300000,
  65                 .offset         = MTDPART_OFS_APPEND,
  66         }, {
  67                 .name           = "JFFS2",
  68                 .size           = 0x9A0000,
  69                 .offset         = MTDPART_OFS_APPEND,
  70         }, {
  71                 .name           = "Settings",
  72                 .size           = MTDPART_SIZ_FULL,
  73                 .offset         = MTDPART_OFS_APPEND,
  74         }
  75 };
  76
  77 static struct physmap_flash_data amlm5900_flash_data = {
  78         .width          = 2,
  79         .parts          = amlm5900_mtd_partitions,
  80         .nr_parts       = ARRAY_SIZE(amlm5900_mtd_partitions),
  81 };
  82
  83 static struct platform_device amlm5900_device_nor = {
  84         .name           = "physmap-flash",
  85         .id             = 0,
  86         .dev = {
  87                         .platform_data = &amlm5900_flash_data,
  88                 },
  89         .num_resources  = 1,
  90         .resource       = &amlm5900_nor_resource,
  91 };
  92
  93 static struct map_desc amlm5900_iodesc[] __initdata = {
  94 };
  95
  96 #define UCON S3C2410_UCON_DEFAULT
  97 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  98 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
  99
 100 static struct s3c2410_uartcfg amlm5900_uartcfgs[] = {
 101         [0] = {
 102                 .hwport      = 0,
 103                 .flags       = 0,
 104                 .ucon        = UCON,
 105                 .ulcon       = ULCON,
 106                 .ufcon       = UFCON,
 107         },
 108         [1] = {
 109                 .hwport      = 1,
 110                 .flags       = 0,
 111                 .ucon        = UCON,
 112                 .ulcon       = ULCON,
 113                 .ufcon       = UFCON,
 114         },
 115         [2] = {
 116                 .hwport      = 2,
 117                 .flags       = 0,
 118                 .ucon        = UCON,
 119                 .ulcon       = ULCON,
 120                 .ufcon       = UFCON,
 121         }
 122 };
 123
 124 static struct gpiod_lookup_table amlm5900_mmc_gpio_table = {
 125         .dev_id = "s3c2410-sdi",
 126         .table = {
 127                 /* bus pins */
 128                 GPIO_LOOKUP_IDX("GPIOE",  5, "bus", 0, GPIO_ACTIVE_HIGH),
 129                 GPIO_LOOKUP_IDX("GPIOE",  6, "bus", 1, GPIO_ACTIVE_HIGH),
 130                 GPIO_LOOKUP_IDX("GPIOE",  7, "bus", 2, GPIO_ACTIVE_HIGH),
 131                 GPIO_LOOKUP_IDX("GPIOE",  8, "bus", 3, GPIO_ACTIVE_HIGH),
 132                 GPIO_LOOKUP_IDX("GPIOE",  9, "bus", 4, GPIO_ACTIVE_HIGH),
 133                 GPIO_LOOKUP_IDX("GPIOE", 10, "bus", 5, GPIO_ACTIVE_HIGH),
 134                 { },
 135         },
 136 };
 137
 138 static struct platform_device *amlm5900_devices[] __initdata = {
 139 #ifdef CONFIG_FB_S3C2410
 140         &s3c_device_lcd,
 141 #endif
 142         &s3c_device_adc,
 143         &s3c_device_wdt,
 144         &s3c_device_i2c0,
 145         &s3c_device_ohci,
 146         &s3c_device_rtc,
 147         &s3c_device_usbgadget,
 148         &s3c_device_sdi,
 149         &amlm5900_device_nor,
 150 };
 151
 152 static void __init amlm5900_map_io(void)
 153 {
 154         s3c24xx_init_io(amlm5900_iodesc, ARRAY_SIZE(amlm5900_iodesc));
 155         s3c24xx_init_uarts(amlm5900_uartcfgs, ARRAY_SIZE(amlm5900_uartcfgs));
 156         s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4);
 157 }
 158
 159 static void __init amlm5900_init_time(void)
 160 {
 161         s3c2410_init_clocks(12000000);
 162         s3c24xx_timer_init();
 163 }
 164
 165 #ifdef CONFIG_FB_S3C2410
 166 static struct s3c2410fb_display __initdata amlm5900_lcd_info = {
 167         .width          = 160,
 168         .height         = 160,
 169
 170         .type           = S3C2410_LCDCON1_STN4,
 171
 172         .pixclock       = 680000, /* HCLK = 100MHz */
 173         .xres           = 160,
 174         .yres           = 160,
 175         .bpp            = 4,
 176         .left_margin    = 1 << (4 + 3),
 177         .right_margin   = 8 << 3,
 178         .hsync_len      = 48,
 179         .upper_margin   = 0,
 180         .lower_margin   = 0,
 181
 182         .lcdcon5        = 0x00000001,
 183 };
 184
 185 static struct s3c2410fb_mach_info __initdata amlm5900_fb_info = {
 186
 187         .displays = &amlm5900_lcd_info,
 188         .num_displays = 1,
 189         .default_display = 0,
 190
 191         .gpccon =       0xaaaaaaaa,
 192         .gpccon_mask =  0xffffffff,
 193         .gpccon_reg =   S3C2410_GPCCON,
 194         .gpcup =        0x0000ffff,
 195         .gpcup_mask =   0xffffffff,
 196         .gpcup_reg =    S3C2410_GPCUP,
 197
 198         .gpdcon =       0xaaaaaaaa,
 199         .gpdcon_mask =  0xffffffff,
 200         .gpdcon_reg =   S3C2410_GPDCON,
 201         .gpdup =        0x0000ffff,
 202         .gpdup_mask =   0xffffffff,
 203         .gpdup_reg =    S3C2410_GPDUP,
 204 };
 205 #endif
 206
 207 static irqreturn_t
 208 amlm5900_wake_interrupt(int irq, void *ignored)
 209 {
 210         return IRQ_HANDLED;
 211 }
 212
 213 static void amlm5900_init_pm(void)
 214 {
 215         int ret = 0;
 216
 217         ret = request_irq(IRQ_EINT9, &amlm5900_wake_interrupt,
 218                                 IRQF_TRIGGER_RISING | IRQF_SHARED,
 219                                 "amlm5900_wakeup", &amlm5900_wake_interrupt);
 220         if (ret != 0) {
 221                 printk(KERN_ERR "AML-M5900: no wakeup irq, %d?\n", ret);
 222         } else {
 223                 enable_irq_wake(IRQ_EINT9);
 224                 /* configure the suspend/resume status pin */
 225                 s3c_gpio_cfgpin(S3C2410_GPF(2), S3C2410_GPIO_OUTPUT);
 226                 s3c_gpio_setpull(S3C2410_GPF(2), S3C_GPIO_PULL_UP);
 227         }
 228 }
 229 static void __init amlm5900_init(void)
 230 {
 231         amlm5900_init_pm();
 232 #ifdef CONFIG_FB_S3C2410
 233         s3c24xx_fb_set_platdata(&amlm5900_fb_info);
 234 #endif
 235         s3c_i2c0_set_platdata(NULL);
 236         gpiod_add_lookup_table(&amlm5900_mmc_gpio_table);
 237         platform_add_devices(amlm5900_devices, ARRAY_SIZE(amlm5900_devices));
 238 }
 239
 240 MACHINE_START(AML_M5900, "AML_M5900")
 241         .atag_offset    = 0x100,
 242         .map_io         = amlm5900_map_io,
 243         .init_irq       = s3c2410_init_irq,
 244         .init_machine   = amlm5900_init,
 245         .init_time      = amlm5900_init_time,
 246 MACHINE_END