arch/arm/mach-s3c/mach-at2440evb.c

   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-sw-hamming.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
 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
 208 static void __init at2440evb_init_time(void)
 209 {
 210         s3c2440_init_clocks(16934400);
 211         s3c24xx_timer_init();
 212 }
 213
 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         .nr_irqs        = NR_IRQS_S3C2440,
 229         .map_io         = at2440evb_map_io,
 230         .init_machine   = at2440evb_init,
 231         .init_irq       = s3c2440_init_irq,
 232         .init_time      = at2440evb_init_time,
 233 MACHINE_END