arch/arm/mach-sa1100/cerf.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * linux/arch/arm/mach-sa1100/cerf.c
   4  *
   5  * Apr-2003 : Removed some old PDA crud [FB]
   6  * Oct-2003 : Added uart2 resource [FB]
   7  * Jan-2004 : Removed io map for flash [FB]
   8  */
   9
  10 #include <linux/init.h>
  11 #include <linux/gpio/machine.h>
  12 #include <linux/kernel.h>
  13 #include <linux/tty.h>
  14 #include <linux/platform_data/sa11x0-serial.h>
  15 #include <linux/platform_device.h>
  16 #include <linux/irq.h>
  17 #include <linux/mtd/mtd.h>
  18 #include <linux/mtd/partitions.h>
  19 #include <linux/gpio.h>
  20 #include <linux/leds.h>
  21
  22 #include <mach/hardware.h>
  23 #include <asm/setup.h>
  24
  25 #include <asm/mach-types.h>
  26 #include <asm/mach/arch.h>
  27 #include <asm/mach/flash.h>
  28 #include <asm/mach/map.h>
  29
  30 #include <mach/cerf.h>
  31 #include <linux/platform_data/mfd-mcp-sa11x0.h>
  32 #include <mach/irqs.h>
  33 #include "generic.h"
  34
  35 static struct resource cerfuart2_resources[] = {
  36         [0] = DEFINE_RES_MEM(0x80030000, SZ_64K),
  37 };
  38
  39 static struct platform_device cerfuart2_device = {
  40         .name           = "sa11x0-uart",
  41         .id             = 2,
  42         .num_resources  = ARRAY_SIZE(cerfuart2_resources),
  43         .resource       = cerfuart2_resources,
  44 };
  45
  46 /* Compact Flash */
  47 static struct gpiod_lookup_table cerf_cf_gpio_table = {
  48         .dev_id = "sa11x0-pcmcia.1",
  49         .table = {
  50                 GPIO_LOOKUP("gpio", 19, "bvd2", GPIO_ACTIVE_HIGH),
  51                 GPIO_LOOKUP("gpio", 20, "bvd1", GPIO_ACTIVE_HIGH),
  52                 GPIO_LOOKUP("gpio", 21, "reset", GPIO_ACTIVE_HIGH),
  53                 GPIO_LOOKUP("gpio", 22, "ready", GPIO_ACTIVE_HIGH),
  54                 GPIO_LOOKUP("gpio", 23, "detect", GPIO_ACTIVE_LOW),
  55                 { },
  56         },
  57 };
  58
  59 /* LEDs */
  60 struct gpio_led cerf_gpio_leds[] = {
  61         {
  62                 .name                   = "cerf:d0",
  63                 .default_trigger        = "heartbeat",
  64                 .gpio                   = 0,
  65         },
  66         {
  67                 .name                   = "cerf:d1",
  68                 .default_trigger        = "cpu0",
  69                 .gpio                   = 1,
  70         },
  71         {
  72                 .name                   = "cerf:d2",
  73                 .default_trigger        = "default-on",
  74                 .gpio                   = 2,
  75         },
  76         {
  77                 .name                   = "cerf:d3",
  78                 .default_trigger        = "default-on",
  79                 .gpio                   = 3,
  80         },
  81
  82 };
  83
  84 static struct gpio_led_platform_data cerf_gpio_led_info = {
  85         .leds           = cerf_gpio_leds,
  86         .num_leds       = ARRAY_SIZE(cerf_gpio_leds),
  87 };
  88
  89 static struct platform_device *cerf_devices[] __initdata = {
  90         &cerfuart2_device,
  91 };
  92
  93 #ifdef CONFIG_SA1100_CERF_FLASH_32MB
  94 #  define CERF_FLASH_SIZE       0x02000000
  95 #elif defined CONFIG_SA1100_CERF_FLASH_16MB
  96 #  define CERF_FLASH_SIZE       0x01000000
  97 #elif defined CONFIG_SA1100_CERF_FLASH_8MB
  98 #  define CERF_FLASH_SIZE       0x00800000
  99 #else
 100 #  error "Undefined flash size for CERF"
 101 #endif
 102
 103 static struct mtd_partition cerf_partitions[] = {
 104         {
 105                 .name           = "Bootloader",
 106                 .size           = 0x00020000,
 107                 .offset         = 0x00000000,
 108         }, {
 109                 .name           = "Params",
 110                 .size           = 0x00040000,
 111                 .offset         = 0x00020000,
 112         }, {
 113                 .name           = "Kernel",
 114                 .size           = 0x00100000,
 115                 .offset         = 0x00060000,
 116         }, {
 117                 .name           = "Filesystem",
 118                 .size           = CERF_FLASH_SIZE-0x00160000,
 119                 .offset         = 0x00160000,
 120         }
 121 };
 122
 123 static struct flash_platform_data cerf_flash_data = {
 124         .map_name       = "cfi_probe",
 125         .parts          = cerf_partitions,
 126         .nr_parts       = ARRAY_SIZE(cerf_partitions),
 127 };
 128
 129 static struct resource cerf_flash_resource =
 130         DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M);
 131
 132 static void __init cerf_init_irq(void)
 133 {
 134         sa1100_init_irq();
 135         irq_set_irq_type(CERF_ETH_IRQ, IRQ_TYPE_EDGE_RISING);
 136 }
 137
 138 static struct map_desc cerf_io_desc[] __initdata = {
 139         {       /* Crystal Ethernet Chip */
 140                 .virtual        =  0xf0000000,
 141                 .pfn            = __phys_to_pfn(0x08000000),
 142                 .length         = 0x00100000,
 143                 .type           = MT_DEVICE
 144         }
 145 };
 146
 147 static void __init cerf_map_io(void)
 148 {
 149         sa1100_map_io();
 150         iotable_init(cerf_io_desc, ARRAY_SIZE(cerf_io_desc));
 151
 152         sa1100_register_uart(0, 3);
 153         sa1100_register_uart(1, 2); /* disable this and the uart2 device for sa1100_fir */
 154         sa1100_register_uart(2, 1);
 155 }
 156
 157 static struct mcp_plat_data cerf_mcp_data = {
 158         .mccr0          = MCCR0_ADM,
 159         .sclk_rate      = 11981000,
 160 };
 161
 162 static void __init cerf_init(void)
 163 {
 164         sa11x0_ppc_configure_mcp();
 165         platform_add_devices(cerf_devices, ARRAY_SIZE(cerf_devices));
 166         gpio_led_register_device(-1, &cerf_gpio_led_info);
 167         sa11x0_register_mtd(&cerf_flash_data, &cerf_flash_resource, 1);
 168         sa11x0_register_mcp(&cerf_mcp_data);
 169         sa11x0_register_pcmcia(1, &cerf_cf_gpio_table);
 170 }
 171
 172 MACHINE_START(CERF, "Intrinsyc CerfBoard/CerfCube")
 173         /* Maintainer: support@intrinsyc.com */
 174         .map_io         = cerf_map_io,
 175         .nr_irqs        = SA1100_NR_IRQS,
 176         .init_irq       = cerf_init_irq,
 177         .init_time      = sa1100_timer_init,
 178         .init_machine   = cerf_init,
 179         .init_late      = sa11x0_init_late,
 180         .restart        = sa11x0_restart,
 181 MACHINE_END