linux/arch/arm/mach-sa1100/cerf.c
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   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
  35static struct resource cerfuart2_resources[] = {
  36        [0] = DEFINE_RES_MEM(0x80030000, SZ_64K),
  37};
  38
  39static 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 */
  47static 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 */
  60struct 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
  84static struct gpio_led_platform_data cerf_gpio_led_info = {
  85        .leds           = cerf_gpio_leds,
  86        .num_leds       = ARRAY_SIZE(cerf_gpio_leds),
  87};
  88
  89static 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
 103static 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
 123static 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
 129static struct resource cerf_flash_resource =
 130        DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M);
 131
 132static 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
 138static 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
 147static 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
 157static struct mcp_plat_data cerf_mcp_data = {
 158        .mccr0          = MCCR0_ADM,
 159        .sclk_rate      = 11981000,
 160};
 161
 162static 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
 172MACHINE_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,
 181MACHINE_END
 182