arch/mips/sgi-ip22/ip22-platform.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <linux/init.h>
   3 #include <linux/if_ether.h>
   4 #include <linux/kernel.h>
   5 #include <linux/platform_device.h>
   6
   7 #include <asm/paccess.h>
   8 #include <asm/sgi/ip22.h>
   9 #include <asm/sgi/hpc3.h>
  10 #include <asm/sgi/mc.h>
  11 #include <asm/sgi/seeq.h>
  12 #include <asm/sgi/wd.h>
  13
  14 static struct resource sgiwd93_0_resources[] = {
  15         {
  16                 .name   = "eth0 irq",
  17                 .start  = SGI_WD93_0_IRQ,
  18                 .end    = SGI_WD93_0_IRQ,
  19                 .flags  = IORESOURCE_IRQ
  20         }
  21 };
  22
  23 static struct sgiwd93_platform_data sgiwd93_0_pd = {
  24         .unit   = 0,
  25         .irq    = SGI_WD93_0_IRQ,
  26 };
  27
  28 static struct platform_device sgiwd93_0_device = {
  29         .name           = "sgiwd93",
  30         .id             = 0,
  31         .num_resources  = ARRAY_SIZE(sgiwd93_0_resources),
  32         .resource       = sgiwd93_0_resources,
  33         .dev = {
  34                 .platform_data = &sgiwd93_0_pd,
  35         },
  36 };
  37
  38 static struct resource sgiwd93_1_resources[] = {
  39         {
  40                 .name   = "eth0 irq",
  41                 .start  = SGI_WD93_1_IRQ,
  42                 .end    = SGI_WD93_1_IRQ,
  43                 .flags  = IORESOURCE_IRQ
  44         }
  45 };
  46
  47 static struct sgiwd93_platform_data sgiwd93_1_pd = {
  48         .unit   = 1,
  49         .irq    = SGI_WD93_1_IRQ,
  50 };
  51
  52 static struct platform_device sgiwd93_1_device = {
  53         .name           = "sgiwd93",
  54         .id             = 1,
  55         .num_resources  = ARRAY_SIZE(sgiwd93_1_resources),
  56         .resource       = sgiwd93_1_resources,
  57         .dev = {
  58                 .platform_data = &sgiwd93_1_pd,
  59         },
  60 };
  61
  62 /*
  63  * Create a platform device for the GPI port that receives the
  64  * image data from the embedded camera.
  65  */
  66 static int __init sgiwd93_devinit(void)
  67 {
  68         int res;
  69
  70         sgiwd93_0_pd.hregs      = &hpc3c0->scsi_chan0;
  71         sgiwd93_0_pd.wdregs     = (unsigned char *) hpc3c0->scsi0_ext;
  72
  73         res = platform_device_register(&sgiwd93_0_device);
  74         if (res)
  75                 return res;
  76
  77         if (!ip22_is_fullhouse())
  78                 return 0;
  79
  80         sgiwd93_1_pd.hregs      = &hpc3c0->scsi_chan1;
  81         sgiwd93_1_pd.wdregs     = (unsigned char *) hpc3c0->scsi1_ext;
  82
  83         return platform_device_register(&sgiwd93_1_device);
  84 }
  85
  86 device_initcall(sgiwd93_devinit);
  87
  88 static struct resource sgiseeq_0_resources[] = {
  89         {
  90                 .name   = "eth0 irq",
  91                 .start  = SGI_ENET_IRQ,
  92                 .end    = SGI_ENET_IRQ,
  93                 .flags  = IORESOURCE_IRQ
  94         }
  95 };
  96
  97 static struct sgiseeq_platform_data eth0_pd;
  98
  99 static struct platform_device eth0_device = {
 100         .name           = "sgiseeq",
 101         .id             = 0,
 102         .num_resources  = ARRAY_SIZE(sgiseeq_0_resources),
 103         .resource       = sgiseeq_0_resources,
 104         .dev = {
 105                 .platform_data = &eth0_pd,
 106         },
 107 };
 108
 109 static struct resource sgiseeq_1_resources[] = {
 110         {
 111                 .name   = "eth1 irq",
 112                 .start  = SGI_GIO_0_IRQ,
 113                 .end    = SGI_GIO_0_IRQ,
 114                 .flags  = IORESOURCE_IRQ
 115         }
 116 };
 117
 118 static struct sgiseeq_platform_data eth1_pd;
 119
 120 static struct platform_device eth1_device = {
 121         .name           = "sgiseeq",
 122         .id             = 1,
 123         .num_resources  = ARRAY_SIZE(sgiseeq_1_resources),
 124         .resource       = sgiseeq_1_resources,
 125         .dev = {
 126                 .platform_data = &eth1_pd,
 127         },
 128 };
 129
 130 /*
 131  * Create a platform device for the GPI port that receives the
 132  * image data from the embedded camera.
 133  */
 134 static int __init sgiseeq_devinit(void)
 135 {
 136         unsigned int pbdma __maybe_unused;
 137         int res, i;
 138
 139         eth0_pd.hpc = hpc3c0;
 140         eth0_pd.irq = SGI_ENET_IRQ;
 141 #define EADDR_NVOFS     250
 142         for (i = 0; i < 3; i++) {
 143                 unsigned short tmp = ip22_nvram_read(EADDR_NVOFS / 2 + i);
 144
 145                 eth0_pd.mac[2 * i]     = tmp >> 8;
 146                 eth0_pd.mac[2 * i + 1] = tmp & 0xff;
 147         }
 148
 149         res = platform_device_register(&eth0_device);
 150         if (res)
 151                 return res;
 152
 153         /* Second HPC is missing? */
 154         if (ip22_is_fullhouse() ||
 155             get_dbe(pbdma, (unsigned int *)&hpc3c1->pbdma[1]))
 156                 return 0;
 157
 158         sgimc->giopar |= SGIMC_GIOPAR_MASTEREXP1 | SGIMC_GIOPAR_EXP164 |
 159                          SGIMC_GIOPAR_HPC264;
 160         hpc3c1->pbus_piocfg[0][0] = 0x3ffff;
 161         /* interrupt/config register on Challenge S Mezz board */
 162         hpc3c1->pbus_extregs[0][0] = 0x30;
 163
 164         eth1_pd.hpc = hpc3c1;
 165         eth1_pd.irq = SGI_GIO_0_IRQ;
 166 #define EADDR_NVOFS     250
 167         for (i = 0; i < 3; i++) {
 168                 unsigned short tmp = ip22_eeprom_read(&hpc3c1->eeprom,
 169                                                       EADDR_NVOFS / 2 + i);
 170
 171                 eth1_pd.mac[2 * i]     = tmp >> 8;
 172                 eth1_pd.mac[2 * i + 1] = tmp & 0xff;
 173         }
 174
 175         return platform_device_register(&eth1_device);
 176 }
 177
 178 device_initcall(sgiseeq_devinit);
 179
 180 static int __init sgi_hal2_devinit(void)
 181 {
 182         return IS_ERR(platform_device_register_simple("sgihal2", 0, NULL, 0));
 183 }
 184
 185 device_initcall(sgi_hal2_devinit);
 186
 187 static int __init sgi_button_devinit(void)
 188 {
 189         if (ip22_is_fullhouse())
 190                 return 0; /* full house has no volume buttons */
 191
 192         return IS_ERR(platform_device_register_simple("sgibtns", -1, NULL, 0));
 193 }
 194
 195 device_initcall(sgi_button_devinit);
 196
 197 static int __init sgi_ds1286_devinit(void)
 198 {
 199         struct resource res;
 200
 201         memset(&res, 0, sizeof(res));
 202         res.start = HPC3_CHIP0_BASE + offsetof(struct hpc3_regs, rtcregs);
 203         res.end = res.start + sizeof(hpc3c0->rtcregs) - 1;
 204         res.flags = IORESOURCE_MEM;
 205
 206         return IS_ERR(platform_device_register_simple("rtc-ds1286", -1,
 207                                                       &res, 1));
 208 }
 209
 210 device_initcall(sgi_ds1286_devinit);