arch/arm/mach-sa1100/collie.c

   1 /*
   2  * linux/arch/arm/mach-sa1100/collie.c
   3  *
   4  * May be copied or modified under the terms of the GNU General Public
   5  * License.  See linux/COPYING for more information.
   6  *
   7  * This file contains all Collie-specific tweaks.
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  *
  13  * ChangeLog:
  14  *  03-06-2004 John Lenz <jelenz@wisc.edu>
  15  *  06-04-2002 Chris Larson <kergoth@digitalnemesis.net>
  16  *  04-16-2001 Lineo Japan,Inc. ...
  17  */
  18
  19 #include <linux/config.h>
  20 #include <linux/init.h>
  21 #include <linux/kernel.h>
  22 #include <linux/tty.h>
  23 #include <linux/delay.h>
  24 #include <linux/platform_device.h>
  25 #include <linux/mtd/mtd.h>
  26 #include <linux/mtd/partitions.h>
  27 #include <linux/timer.h>
  28
  29 #include <asm/hardware.h>
  30 #include <asm/mach-types.h>
  31 #include <asm/irq.h>
  32 #include <asm/setup.h>
  33 #include <asm/arch/collie.h>
  34
  35 #include <asm/mach/arch.h>
  36 #include <asm/mach/flash.h>
  37 #include <asm/mach/map.h>
  38 #include <asm/mach/serial_sa1100.h>
  39
  40 #include <asm/hardware/scoop.h>
  41 #include <asm/mach/sharpsl_param.h>
  42 #include <asm/hardware/locomo.h>
  43 #include <asm/arch/mcp.h>
  44
  45 #include "generic.h"
  46
  47 static struct resource collie_scoop_resources[] = {
  48         [0] = {
  49                 .start          = 0x40800000,
  50                 .end            = 0x40800fff,
  51                 .flags          = IORESOURCE_MEM,
  52         },
  53 };
  54
  55 static struct scoop_config collie_scoop_setup = {
  56         .io_dir         = COLLIE_SCOOP_IO_DIR,
  57         .io_out         = COLLIE_SCOOP_IO_OUT,
  58 };
  59
  60 struct platform_device colliescoop_device = {
  61         .name           = "sharp-scoop",
  62         .id             = -1,
  63         .dev            = {
  64                 .platform_data  = &collie_scoop_setup,
  65         },
  66         .num_resources  = ARRAY_SIZE(collie_scoop_resources),
  67         .resource       = collie_scoop_resources,
  68 };
  69
  70 static struct scoop_pcmcia_dev collie_pcmcia_scoop[] = {
  71 {
  72        .dev        = &colliescoop_device.dev,
  73        .irq        = COLLIE_IRQ_GPIO_CF_IRQ,
  74        .cd_irq     = COLLIE_IRQ_GPIO_CF_CD,
  75        .cd_irq_str = "PCMCIA0 CD",
  76 },
  77 };
  78
  79 static struct scoop_pcmcia_config collie_pcmcia_config = {
  80         .devs         = &collie_pcmcia_scoop[0],
  81         .num_devs     = 1,
  82 };
  83
  84
  85 static struct mcp_plat_data collie_mcp_data = {
  86         .mccr0          = MCCR0_ADM,
  87         .sclk_rate      = 11981000,
  88 };
  89
  90
  91 static struct sa1100_port_fns collie_port_fns __initdata = {
  92         .set_mctrl      = collie_uart_set_mctrl,
  93         .get_mctrl      = collie_uart_get_mctrl,
  94 };
  95
  96
  97 static struct resource locomo_resources[] = {
  98         [0] = {
  99                 .start          = 0x40000000,
 100                 .end            = 0x40001fff,
 101                 .flags          = IORESOURCE_MEM,
 102         },
 103         [1] = {
 104                 .start          = IRQ_GPIO25,
 105                 .end            = IRQ_GPIO25,
 106                 .flags          = IORESOURCE_IRQ,
 107         },
 108 };
 109
 110 static struct platform_device locomo_device = {
 111         .name           = "locomo",
 112         .id             = 0,
 113         .num_resources  = ARRAY_SIZE(locomo_resources),
 114         .resource       = locomo_resources,
 115 };
 116
 117 static struct platform_device *devices[] __initdata = {
 118         &locomo_device,
 119         &colliescoop_device,
 120 };
 121
 122 static struct mtd_partition collie_partitions[] = {
 123         {
 124                 .name           = "bootloader",
 125                 .offset         = 0,
 126                 .size           = 0x000C0000,
 127                 .mask_flags     = MTD_WRITEABLE
 128         }, {
 129                 .name           = "kernel",
 130                 .offset         = MTDPART_OFS_APPEND,
 131                 .size           = 0x00100000,
 132         }, {
 133                 .name           = "rootfs",
 134                 .offset         = MTDPART_OFS_APPEND,
 135                 .size           = 0x00e20000,
 136         }
 137 };
 138
 139 static void collie_set_vpp(int vpp)
 140 {
 141         write_scoop_reg(&colliescoop_device.dev, SCOOP_GPCR, read_scoop_reg(&colliescoop_device.dev, SCOOP_GPCR) | COLLIE_SCP_VPEN);
 142         if (vpp)
 143                 write_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR, read_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR) | COLLIE_SCP_VPEN);
 144         else
 145                 write_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR, read_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR) & ~COLLIE_SCP_VPEN);
 146 }
 147
 148 static struct flash_platform_data collie_flash_data = {
 149         .map_name       = "cfi_probe",
 150         .set_vpp        = collie_set_vpp,
 151         .parts          = collie_partitions,
 152         .nr_parts       = ARRAY_SIZE(collie_partitions),
 153 };
 154
 155 static struct resource collie_flash_resources[] = {
 156         {
 157                 .start  = SA1100_CS0_PHYS,
 158                 .end    = SA1100_CS0_PHYS + SZ_32M - 1,
 159                 .flags  = IORESOURCE_MEM,
 160         }
 161 };
 162
 163 static void __init collie_init(void)
 164 {
 165         int ret = 0;
 166
 167         /* cpu initialize */
 168         GAFR = ( GPIO_SSP_TXD | \
 169                  GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK | GPIO_TIC_ACK | \
 170                  GPIO_32_768kHz );
 171
 172         GPDR = ( GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 | \
 173                  GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD | \
 174                  GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK | \
 175                  GPIO_SDLC_AAF | GPIO_UART_SCLK1 | GPIO_32_768kHz );
 176         GPLR = GPIO_GPIO18;
 177
 178         // PPC pin setting
 179         PPDR = ( PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 | \
 180                  PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS | \
 181                  PPC_TXD1 | PPC_TXD2 | PPC_RXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM );
 182
 183         PSDR = ( PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4 );
 184
 185         GAFR |= GPIO_32_768kHz;
 186         GPDR |= GPIO_32_768kHz;
 187         TUCR  = TUCR_32_768kHz;
 188
 189         platform_scoop_config = &collie_pcmcia_config;
 190
 191         ret = platform_add_devices(devices, ARRAY_SIZE(devices));
 192         if (ret) {
 193                 printk(KERN_WARNING "collie: Unable to register LoCoMo device\n");
 194         }
 195
 196         sa11x0_set_flash_data(&collie_flash_data, collie_flash_resources,
 197                               ARRAY_SIZE(collie_flash_resources));
 198         sa11x0_set_mcp_data(&collie_mcp_data);
 199
 200         sharpsl_save_param();
 201 }
 202
 203 static struct map_desc collie_io_desc[] __initdata = {
 204         {       /* 32M main flash (cs0) */
 205                 .virtual        = 0xe8000000,
 206                 .pfn            = __phys_to_pfn(0x00000000),
 207                 .length         = 0x02000000,
 208                 .type           = MT_DEVICE
 209         }, {    /* 32M boot flash (cs1) */
 210                 .virtual        = 0xea000000,
 211                 .pfn            = __phys_to_pfn(0x08000000),
 212                 .length         = 0x02000000,
 213                 .type           = MT_DEVICE
 214         }
 215 };
 216
 217 static void __init collie_map_io(void)
 218 {
 219         sa1100_map_io();
 220         iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc));
 221 }
 222
 223 MACHINE_START(COLLIE, "Sharp-Collie")
 224         .phys_io        = 0x80000000,
 225         .io_pg_offst    = ((0xf8000000) >> 18) & 0xfffc,
 226         .map_io         = collie_map_io,
 227         .init_irq       = sa1100_init_irq,
 228         .timer          = &sa1100_timer,
 229         .init_machine   = collie_init,
 230 MACHINE_END