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

   1 // SPDX-License-Identifier: GPL-2.0
   2 //
   3 // (C) 2006 Thomas Gleixner <[email protected]>
   4 //
   5 // Derived from mach-smdk2413.c - (C) 2006 Simtec Electronics
   6
   7 #include <linux/kernel.h>
   8 #include <linux/types.h>
   9 #include <linux/interrupt.h>
  10 #include <linux/list.h>
  11 #include <linux/timer.h>
  12 #include <linux/init.h>
  13 #include <linux/serial_core.h>
  14 #include <linux/serial_s3c.h>
  15 #include <linux/platform_device.h>
  16 #include <linux/io.h>
  17 #include <linux/mtd/mtd.h>
  18 #include <linux/mtd/rawnand.h>
  19 #include <linux/mtd/nand-ecc-sw-hamming.h>
  20 #include <linux/mtd/partitions.h>
  21 #include <linux/memblock.h>
  22
  23 #include <asm/mach/arch.h>
  24 #include <asm/mach/map.h>
  25 #include <asm/mach/irq.h>
  26
  27 #include <asm/setup.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 "gpio-cfg.h"
  34
  35 #include <linux/platform_data/fb-s3c2410.h>
  36
  37 #include <linux/platform_data/i2c-s3c2410.h>
  38 #include <linux/platform_data/mtd-nand-s3c2410.h>
  39
  40 #include "devs.h"
  41 #include "cpu.h"
  42
  43 #include "s3c24xx.h"
  44
  45 static struct map_desc vstms_iodesc[] __initdata = {
  46 };
  47
  48 static struct s3c2410_uartcfg vstms_uartcfgs[] __initdata = {
  49         [0] = {
  50                 .hwport      = 0,
  51                 .flags       = 0,
  52                 .ucon        = 0x3c5,
  53                 .ulcon       = 0x03,
  54                 .ufcon       = 0x51,
  55         },
  56         [1] = {
  57                 .hwport      = 1,
  58                 .flags       = 0,
  59                 .ucon        = 0x3c5,
  60                 .ulcon       = 0x03,
  61                 .ufcon       = 0x51,
  62         },
  63         [2] = {
  64                 .hwport      = 2,
  65                 .flags       = 0,
  66                 .ucon        = 0x3c5,
  67                 .ulcon       = 0x03,
  68                 .ufcon       = 0x51,
  69         }
  70 };
  71
  72 static struct mtd_partition __initdata vstms_nand_part[] = {
  73         [0] = {
  74                 .name   = "Boot Agent",
  75                 .size   = 0x7C000,
  76                 .offset = 0,
  77         },
  78         [1] = {
  79                 .name   = "UBoot Config",
  80                 .offset = 0x7C000,
  81                 .size   = 0x4000,
  82         },
  83         [2] = {
  84                 .name   = "Kernel",
  85                 .offset = 0x80000,
  86                 .size   = 0x200000,
  87         },
  88         [3] = {
  89                 .name   = "RFS",
  90                 .offset = 0x280000,
  91                 .size   = 0x3d80000,
  92         },
  93 };
  94
  95 static struct s3c2410_nand_set __initdata vstms_nand_sets[] = {
  96         [0] = {
  97                 .name           = "NAND",
  98                 .nr_chips       = 1,
  99                 .nr_partitions  = ARRAY_SIZE(vstms_nand_part),
 100                 .partitions     = vstms_nand_part,
 101         },
 102 };
 103
 104 /* choose a set of timings which should suit most 512Mbit
 105  * chips and beyond.
 106 */
 107
 108 static struct s3c2410_platform_nand __initdata vstms_nand_info = {
 109         .tacls          = 20,
 110         .twrph0         = 60,
 111         .twrph1         = 20,
 112         .nr_sets        = ARRAY_SIZE(vstms_nand_sets),
 113         .sets           = vstms_nand_sets,
 114         .engine_type    = NAND_ECC_ENGINE_TYPE_SOFT,
 115 };
 116
 117 static struct platform_device *vstms_devices[] __initdata = {
 118         &s3c_device_ohci,
 119         &s3c_device_wdt,
 120         &s3c_device_i2c0,
 121         &s3c_device_iis,
 122         &s3c_device_rtc,
 123         &s3c_device_nand,
 124         &s3c2412_device_dma,
 125 };
 126
 127 static void __init vstms_fixup(struct tag *tags, char **cmdline)
 128 {
 129         if (tags != phys_to_virt(S3C2410_SDRAM_PA + 0x100)) {
 130                 memblock_add(0x30000000, SZ_64M);
 131         }
 132 }
 133
 134 static void __init vstms_map_io(void)
 135 {
 136         s3c24xx_init_io(vstms_iodesc, ARRAY_SIZE(vstms_iodesc));
 137         s3c24xx_init_uarts(vstms_uartcfgs, ARRAY_SIZE(vstms_uartcfgs));
 138         s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4);
 139 }
 140
 141 static void __init vstms_init_time(void)
 142 {
 143         s3c2412_init_clocks(12000000);
 144         s3c24xx_timer_init();
 145 }
 146
 147 static void __init vstms_init(void)
 148 {
 149         s3c_i2c0_set_platdata(NULL);
 150         s3c_nand_set_platdata(&vstms_nand_info);
 151         /* Configure the I2S pins (GPE0...GPE4) in correct mode */
 152         s3c_gpio_cfgall_range(S3C2410_GPE(0), 5, S3C_GPIO_SFN(2),
 153                               S3C_GPIO_PULL_NONE);
 154         platform_add_devices(vstms_devices, ARRAY_SIZE(vstms_devices));
 155 }
 156
 157 MACHINE_START(VSTMS, "VSTMS")
 158         .atag_offset    = 0x100,
 159
 160         .fixup          = vstms_fixup,
 161         .init_irq       = s3c2412_init_irq,
 162         .init_machine   = vstms_init,
 163         .map_io         = vstms_map_io,
 164         .init_time      = vstms_init_time,
 165 MACHINE_END