src/superio/nsc/pc97307/superio.c

   1 /* Copyright 2000  AG Electronics Ltd. */
   2 /* This code is distributed without warranty under the GPL v2 (see COPYING) */
   3
   4 #include <arch/io.h>
   5 #include <console/console.h>
   6 #include <device/device.h>
   7 #include <device/pnp.h>
   8 #include "chip.h"
   9 #include "pc97307.h"
  10
  11 static void init(device_t dev)
  12 {
  13         struct superio_nsc_pc97307_config *conf;
  14         struct resource *res0, *res1;
  15
  16         if (!dev->enabled) {
  17                 return;
  18         }
  19         conf = dev->chip_info;
  20         switch(dev->path.u.pnp.device) {
  21         case PC97307_SP1:
  22                 res0 = find_resource(dev, PNP_IDX_IO0);
  23                 init_uart8250(res0->base, &conf->com1);
  24                 break;
  25
  26         case PC97307_SP2:
  27                 res0 = find_resource(dev, PNP_IDX_IO0);
  28                 init_uart8250(res0->base, &conf->com2);
  29                 break;
  30
  31         case PC97307_KBCK:
  32                 /* Enable keyboard */
  33                 pnp_set_logical_device(dev);
  34                 pnp_set_enable(dev, 0); /* Disable keyboard */
  35                 pnp_write_config(dev, 0xf0, 0x40); /* Set KBC clock to 8 Mhz */
  36                 pnp_set_enable(dev, 1); /* Enable keyboard */
  37
  38                 res0 = find_resource(dev, PNP_IDX_IO0);
  39                 res1 = find_resource(dev, PNP_IDX_IO1);
  40                 init_pc_keyboard(res0->base, res1->base, &conf->keyboard);
  41                 break;
  42
  43         case PC97307_FDC:
  44         {
  45                 unsigned reg;
  46                 /* Set up floppy in PS/2 mode */
  47                 outb(0x09, SIO_CONFIG_RA);
  48                 reg = inb(SIO_CONFIG_RD);
  49                 reg = (reg & 0x3F) | 0x40;
  50                 outb(reg, SIO_CONFIG_RD);
  51                 outb(reg, SIO_CONFIG_RD);       /* Have to write twice to change! */
  52                 break;
  53         }
  54         default:
  55                 break;
  56         }
  57 }
  58
  59 static struct device_operations ops = {
  60         .read_resources   = pnp_read_resources,
  61         .set_resources    = pnp_set_resources,
  62         .enable_resources = pnp_enable_resources,
  63         .enable           = pnp_enable,
  64         .init             = init,
  65 };
  66
  67 static struct pnp_info pnp_dev_info[] = {
  68  { &ops, PC97307_KBCK, PNP_IO0 | PNP_IO1 | PNP_IRQ0, { 0xffb, 0 }, { 0xffb, 0x4}, },
  69  { &ops, PC97307_KBCM, PNP_IRQ0 },
  70  { &ops, PC97307_RTC,  PNP_IO0 | PNP_IRQ0, { 0xfffe, 0}, },
  71  { &ops, PC97307_FDC,  PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, { 0xfffa, 0}, },
  72  { &ops, PC97307_PP,   PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, { 0x03fc, 0}, },
  73  { &ops, PC97307_SP2,  PNP_IO0 | PNP_IRQ0 | PNP_DRQ0 | PNP_DRQ1, { 0xfff8, 0 }, },
  74  { &ops, PC97307_SP1,  PNP_IO0 | PNP_IRQ0, { 0xfff8, 0 }, },
  75  { &ops, PC97307_GPIO, PNP_IO0, { 0xfff8, 0 } },
  76  { &ops, PC97307_PM,   PNP_IO0, { 0xfffe, 0 } },
  77 };
  78
  79 static void enable_dev(struct device *dev)
  80 {
  81         pnp_enable_devices(dev, &ops,
  82                 sizeof(pnp_dev_info)/sizeof(pnp_dev_info[0]), pnp_dev_info);
  83 }
  84
  85 struct chip_operations superio_nsc_pc97307_ops = {
  86         CHIP_NAME("NSC PC97307 Super I/O")
  87         .enable_dev = enable_dev,
  88 };