LXR linux/arch/arm/mach-sa1100/hackkit.c

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * linux/arch/arm/mach-sa1100/hackkit.c
   4 *
   5 * Copyright (C) 2002 Stefan Eletzhofer <stefan.eletzhofer@eletztrick.de>
   6 *
   7 * This file contains all HackKit tweaks. Based on original work from
   8 * Nicolas Pitre's assabet fixes
   9 */
  10#include <linux/init.h>
  11#include <linux/kernel.h>
  12#include <linux/sched.h>
  13#include <linux/tty.h>
  14#include <linux/module.h>
  15#include <linux/errno.h>
  16#include <linux/cpufreq.h>
  17#include <linux/platform_data/sa11x0-serial.h>
  18#include <linux/serial_core.h>
  19#include <linux/mtd/mtd.h>
  20#include <linux/mtd/partitions.h>
  21#include <linux/tty.h>
  22#include <linux/gpio.h>
  23#include <linux/leds.h>
  24#include <linux/platform_device.h>
  25
  26#include <asm/mach-types.h>
  27#include <asm/setup.h>
  28#include <asm/page.h>
  29#include <asm/pgtable.h>
  30
  31#include <asm/mach/arch.h>
  32#include <asm/mach/flash.h>
  33#include <asm/mach/map.h>
  34#include <asm/mach/irq.h>
  35
  36#include <mach/hardware.h>
  37#include <mach/irqs.h>
  38
  39#include "generic.h"
  40
  41/**********************************************************************
  42 *  prototypes
  43 */
  44
  45/* init funcs */
  46static void __init hackkit_map_io(void);
  47
  48static void hackkit_uart_pm(struct uart_port *port, u_int state, u_int oldstate);
  49
  50/**********************************************************************
  51 *  global data
  52 */
  53
  54/**********************************************************************
  55 *  static data
  56 */
  57
  58static struct map_desc hackkit_io_desc[] __initdata = {
  59        {       /* Flash bank 0 */
  60                .virtual        =  0xe8000000,
  61                .pfn            = __phys_to_pfn(0x00000000),
  62                .length         = 0x01000000,
  63                .type           = MT_DEVICE
  64        },
  65};
  66
  67static struct sa1100_port_fns hackkit_port_fns __initdata = {
  68        .pm             = hackkit_uart_pm,
  69};
  70
  71/**********************************************************************
  72 *  Static functions
  73 */
  74
  75static void __init hackkit_map_io(void)
  76{
  77        sa1100_map_io();
  78        iotable_init(hackkit_io_desc, ARRAY_SIZE(hackkit_io_desc));
  79
  80        sa1100_register_uart_fns(&hackkit_port_fns);
  81        sa1100_register_uart(0, 1);     /* com port */
  82        sa1100_register_uart(1, 2);
  83        sa1100_register_uart(2, 3);     /* radio module */
  84
  85        Ser1SDCR0 |= SDCR0_SUS;
  86}
  87
  88/**
  89 *      hackkit_uart_pm - powermgmt callback function for system 3 UART
  90 *      @port: uart port structure
  91 *      @state: pm state
  92 *      @oldstate: old pm state
  93 *
  94 */
  95static void hackkit_uart_pm(struct uart_port *port, u_int state, u_int oldstate)
  96{
  97        /* TODO: switch on/off uart in powersave mode */
  98}
  99
 100static struct mtd_partition hackkit_partitions[] = {
 101        {
 102                .name           = "BLOB",
 103                .size           = 0x00040000,
 104                .offset         = 0x00000000,
 105                .mask_flags     = MTD_WRITEABLE,  /* force read-only */
 106        }, {
 107                .name           = "config",
 108                .size           = 0x00040000,
 109                .offset         = MTDPART_OFS_APPEND,
 110        }, {
 111                .name           = "kernel",
 112                .size           = 0x00100000,
 113                .offset         = MTDPART_OFS_APPEND,
 114        }, {
 115                .name           = "initrd",
 116                .size           = 0x00180000,
 117                .offset         = MTDPART_OFS_APPEND,
 118        }, {
 119                .name           = "rootfs",
 120                .size           = 0x700000,
 121                .offset         = MTDPART_OFS_APPEND,
 122        }, {
 123                .name           = "data",
 124                .size           = MTDPART_SIZ_FULL,
 125                .offset         = MTDPART_OFS_APPEND,
 126        }
 127};
 128
 129static struct flash_platform_data hackkit_flash_data = {
 130        .map_name       = "cfi_probe",
 131        .parts          = hackkit_partitions,
 132        .nr_parts       = ARRAY_SIZE(hackkit_partitions),
 133};
 134
 135static struct resource hackkit_flash_resource =
 136        DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M);
 137
 138/* LEDs */
 139struct gpio_led hackkit_gpio_leds[] = {
 140        {
 141                .name                   = "hackkit:red",
 142                .default_trigger        = "cpu0",
 143                .gpio                   = 22,
 144        },
 145        {
 146                .name                   = "hackkit:green",
 147                .default_trigger        = "heartbeat",
 148                .gpio                   = 23,
 149        },
 150};
 151
 152static struct gpio_led_platform_data hackkit_gpio_led_info = {
 153        .leds           = hackkit_gpio_leds,
 154        .num_leds       = ARRAY_SIZE(hackkit_gpio_leds),
 155};
 156
 157static struct platform_device hackkit_leds = {
 158        .name   = "leds-gpio",
 159        .id     = -1,
 160        .dev    = {
 161                .platform_data  = &hackkit_gpio_led_info,
 162        }
 163};
 164
 165static void __init hackkit_init(void)
 166{
 167        sa11x0_register_mtd(&hackkit_flash_data, &hackkit_flash_resource, 1);
 168        platform_device_register(&hackkit_leds);
 169}
 170
 171/**********************************************************************
 172 *  Exported Functions
 173 */
 174
 175MACHINE_START(HACKKIT, "HackKit Cpu Board")
 176        .atag_offset    = 0x100,
 177        .map_io         = hackkit_map_io,
 178        .nr_irqs        = SA1100_NR_IRQS,
 179        .init_irq       = sa1100_init_irq,
 180        .init_time      = sa1100_timer_init,
 181        .init_machine   = hackkit_init,
 182        .init_late      = sa11x0_init_late,
 183        .restart        = sa11x0_restart,
 184MACHINE_END
 185