err.no Git - linux-2.6/blob - arch/mips/ite-boards/generic/it8172_setup.c

   1 /*
   2  * BRIEF MODULE DESCRIPTION
   3  *      IT8172/QED5231 board setup.
   4  *
   5  * Copyright 2000 MontaVista Software Inc.
   6  * Author: MontaVista Software, Inc.
   7  *              ppopov@mvista.com or source@mvista.com
   8  *
   9  *  This program is free software; you can redistribute  it and/or modify it
  10  *  under  the terms of  the GNU General  Public License as published by the
  11  *  Free Software Foundation;  either version 2 of the  License, or (at your
  12  *  option) any later version.
  13  *
  14  *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
  15  *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
  16  *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
  17  *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
  18  *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  19  *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
  20  *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  21  *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
  22  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  23  *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  *
  25  *  You should have received a copy of the  GNU General Public License along
  26  *  with this program; if not, write  to the Free Software Foundation, Inc.,
  27  *  675 Mass Ave, Cambridge, MA 02139, USA.
  28  */
  29 #include <linux/init.h>
  30 #include <linux/sched.h>
  31 #include <linux/ioport.h>
  32 #include <linux/irq.h>
  33 #include <linux/serial_reg.h>
  34 #include <linux/major.h>
  35 #include <linux/kdev_t.h>
  36 #include <linux/root_dev.h>
  37 #include <linux/pm.h>
  38
  39 #include <asm/cpu.h>
  40 #include <asm/time.h>
  41 #include <asm/io.h>
  42 #include <asm/bootinfo.h>
  43 #include <asm/irq.h>
  44 #include <asm/mipsregs.h>
  45 #include <asm/reboot.h>
  46 #include <asm/traps.h>
  47 #include <asm/it8172/it8172.h>
  48 #include <asm/it8712.h>
  49
  50 extern struct resource ioport_resource;
  51 #ifdef CONFIG_SERIO_I8042
  52 int init_8712_keyboard(void);
  53 #endif
  54
  55 extern int SearchIT8712(void);
  56 extern void InitLPCInterface(void);
  57 extern char * __init prom_getcmdline(void);
  58 extern void it8172_restart(char *command);
  59 extern void it8172_halt(void);
  60 extern void it8172_power_off(void);
  61
  62 extern void it8172_time_init(void);
  63 extern void it8172_timer_setup(struct irqaction *irq);
  64
  65 #ifdef CONFIG_IT8172_REVC
  66 struct {
  67     struct resource ram;
  68     struct resource pci_mem;
  69     struct resource pci_io;
  70     struct resource flash;
  71     struct resource boot;
  72 } it8172_resources = {
  73         {
  74                 .start  = 0,                            /* to be initted */
  75                 .end    = 0,
  76                 .name   = "RAM",
  77                 .flags  = IORESOURCE_MEM
  78         }, {
  79                 .start  = 0x10000000,
  80                 .end    = 0x13FFFFFF,
  81                 .name   = "PCI Mem",
  82                 .flags  = IORESOURCE_MEM
  83         }, {
  84                 .start  = 0x14000000,
  85                 .end    = 0x17FFFFFF
  86                 .name   = "PCI I/O",
  87         }, {
  88                 .start  = 0x08000000,
  89                 .end    = 0x0CFFFFFF
  90                 .name   = "Flash",
  91         }, {
  92                 .start  = 0x1FC00000,
  93                 .end    = 0x1FFFFFFF
  94                 .name   = "Boot ROM",
  95         }
  96 };
  97 #else
  98 struct {
  99     struct resource ram;
 100     struct resource pci_mem0;
 101     struct resource pci_mem1;
 102     struct resource pci_io;
 103     struct resource pci_mem2;
 104     struct resource pci_mem3;
 105     struct resource flash;
 106     struct resource boot;
 107 } it8172_resources = {
 108         {
 109                 .start  = 0,                            /* to be initted */
 110                 .end    = 0,
 111                 .name   = "RAM",
 112                 .flags  = IORESOURCE_MEM
 113         }, {
 114                 .start  = 0x0C000000,
 115                 .end    = 0x0FFFFFFF,
 116                 .name   = "PCI Mem0",
 117                 .flags  = IORESOURCE_MEM
 118          }, {
 119                 .start  = 0x10000000,
 120                 .end    = 0x13FFFFFF,
 121                 .name   = "PCI Mem1",
 122                 .flags  = IORESOURCE_MEM
 123          }, {
 124                 .start  = 0x14000000,
 125                 .end    = 0x17FFFFFF
 126                 .name   = "PCI I/O",
 127         }, {
 128                 .start  = 0x1A000000,
 129                 .end    = 0x1BFFFFFF,
 130                 .name   = "PCI Mem2",
 131                 .flags  = IORESOURCE_MEM
 132         }, {
 133                 .start  = 0x1C000000,
 134                 .end    = 0x1FBFFFFF,
 135                 .name   = "PCI Mem3",
 136                 .flags  = IORESOURCE_MEM
 137         }, {
 138                 .start  = 0x08000000,
 139                 .end    = 0x0CFFFFFF
 140                 .name   = "Flash",
 141         }, {
 142                 .start  = 0x1FC00000,
 143                 .end    = 0x1FFFFFFF
 144                 .name   = "Boot ROM",
 145         }
 146 };
 147 #endif
 148
 149
 150 void __init it8172_init_ram_resource(unsigned long memsize)
 151 {
 152         it8172_resources.ram.end = memsize;
 153 }
 154
 155 void __init plat_mem_setup(void)
 156 {
 157         unsigned short dsr;
 158         char *argptr;
 159
 160         argptr = prom_getcmdline();
 161 #ifdef CONFIG_SERIAL_CONSOLE
 162         if ((argptr = strstr(argptr, "console=")) == NULL) {
 163                 argptr = prom_getcmdline();
 164                 strcat(argptr, " console=ttyS0,115200");
 165         }
 166 #endif
 167
 168         clear_c0_status(ST0_FR);
 169
 170         board_time_init = it8172_time_init;
 171         board_timer_setup = it8172_timer_setup;
 172
 173         _machine_restart = it8172_restart;
 174         _machine_halt = it8172_halt;
 175         pm_power_off = it8172_power_off;
 176
 177         /*
 178          * IO/MEM resources.
 179          *
 180          * revisit this area.
 181          */
 182         set_io_port_base(KSEG1);
 183         ioport_resource.start = it8172_resources.pci_io.start;
 184         ioport_resource.end = it8172_resources.pci_io.end;
 185 #ifdef CONFIG_IT8172_REVC
 186         iomem_resource.start = it8172_resources.pci_mem.start;
 187         iomem_resource.end = it8172_resources.pci_mem.end;
 188 #else
 189         iomem_resource.start = it8172_resources.pci_mem0.start;
 190         iomem_resource.end = it8172_resources.pci_mem3.end;
 191 #endif
 192
 193 #ifdef CONFIG_BLK_DEV_INITRD
 194         ROOT_DEV = Root_RAM0;
 195 #endif
 196
 197         /*
 198          * Pull enabled devices out of standby
 199          */
 200         IT_IO_READ16(IT_PM_DSR, dsr);
 201
 202         /*
 203          * Fixme: This breaks when these drivers are modules!!!
 204          */
 205 #ifdef CONFIG_SOUND_IT8172
 206         dsr &= ~IT_PM_DSR_ACSB;
 207 #else
 208         dsr |= IT_PM_DSR_ACSB;
 209 #endif
 210 #ifdef CONFIG_BLK_DEV_IT8172
 211         dsr &= ~IT_PM_DSR_IDESB;
 212 #else
 213         dsr |= IT_PM_DSR_IDESB;
 214 #endif
 215         IT_IO_WRITE16(IT_PM_DSR, dsr);
 216
 217         InitLPCInterface();
 218
 219 #ifdef CONFIG_MIPS_ITE8172
 220         if (SearchIT8712()) {
 221                 printk("Found IT8712 Super IO\n");
 222                 /* enable IT8712 serial port */
 223                 LPCSetConfig(LDN_SERIAL1, 0x30, 0x01); /* enable */
 224                 LPCSetConfig(LDN_SERIAL1, 0x23, 0x01); /* clock selection */
 225 #ifdef CONFIG_SERIO_I8042
 226                 if (init_8712_keyboard()) {
 227                         printk("Unable to initialize keyboard\n");
 228                         LPCSetConfig(LDN_KEYBOARD, 0x30, 0x0); /* disable keyboard */
 229                 } else {
 230                         LPCSetConfig(LDN_KEYBOARD, 0x30, 0x1); /* enable keyboard */
 231                         LPCSetConfig(LDN_KEYBOARD, 0xf0, 0x2);
 232                         LPCSetConfig(LDN_KEYBOARD, 0x71, 0x3);
 233
 234                         LPCSetConfig(LDN_MOUSE, 0x30, 0x1); /* enable mouse */
 235
 236                         LPCSetConfig(0x4, 0x30, 0x1);
 237                         LPCSetConfig(0x4, 0xf4, LPCGetConfig(0x4, 0xf4) | 0x80);
 238
 239                         if ((LPCGetConfig(LDN_KEYBOARD, 0x30) == 0) ||
 240                                         (LPCGetConfig(LDN_MOUSE, 0x30) == 0))
 241                                 printk("Error: keyboard or mouse not enabled\n");
 242
 243                 }
 244 #endif
 245         }
 246         else {
 247                 printk("IT8712 Super IO not found\n");
 248         }
 249 #endif
 250
 251 #ifdef CONFIG_IT8172_CIR
 252         {
 253                 unsigned long data;
 254                 //printk("Enabling CIR0\n");
 255                 IT_IO_READ16(IT_PM_DSR, data);
 256                 data &= ~IT_PM_DSR_CIR0SB;
 257                 IT_IO_WRITE16(IT_PM_DSR, data);
 258                 //printk("DSR register: %x\n", (unsigned)IT_IO_READ16(IT_PM_DSR, data));
 259         }
 260 #endif
 261 #ifdef CONFIG_IT8172_SCR0
 262         {
 263                 unsigned i;
 264                 /* Enable Smart Card Reader 0 */
 265                 /* First power it up */
 266                 IT_IO_READ16(IT_PM_DSR, i);
 267                 i &= ~IT_PM_DSR_SCR0SB;
 268                 IT_IO_WRITE16(IT_PM_DSR, i);
 269                 /* Then initialize its registers */
 270                 outb(( IT_SCR_SFR_GATE_UART_OFF     << IT_SCR_SFR_GATE_UART_BIT
 271                       |IT_SCR_SFR_FET_CHARGE_213_US << IT_SCR_SFR_FET_CHARGE_BIT
 272                       |IT_SCR_SFR_CARD_FREQ_3_5_MHZ << IT_SCR_SFR_CARD_FREQ_BIT
 273                       |IT_SCR_SFR_FET_ACTIVE_INVERT << IT_SCR_SFR_FET_ACTIVE_BIT
 274                       |IT_SCR_SFR_ENABLE_ON         << IT_SCR_SFR_ENABLE_BIT),
 275                      IT8172_PCI_IO_BASE + IT_SCR0_BASE + IT_SCR_SFR);
 276                 outb(IT_SCR_SCDR_RESET_MODE_ASYNC << IT_SCR_SCDR_RESET_MODE_BIT,
 277                      IT8172_PCI_IO_BASE + IT_SCR0_BASE + IT_SCR_SCDR);
 278         }
 279 #endif /* CONFIG_IT8172_SCR0 */
 280 #ifdef CONFIG_IT8172_SCR1
 281         {
 282                 unsigned i;
 283                 /* Enable Smart Card Reader 1 */
 284                 /* First power it up */
 285                 IT_IO_READ16(IT_PM_DSR, i);
 286                 i &= ~IT_PM_DSR_SCR1SB;
 287                 IT_IO_WRITE16(IT_PM_DSR, i);
 288                 /* Then initialize its registers */
 289                 outb(( IT_SCR_SFR_GATE_UART_OFF     << IT_SCR_SFR_GATE_UART_BIT
 290                       |IT_SCR_SFR_FET_CHARGE_213_US << IT_SCR_SFR_FET_CHARGE_BIT
 291                       |IT_SCR_SFR_CARD_FREQ_3_5_MHZ << IT_SCR_SFR_CARD_FREQ_BIT
 292                       |IT_SCR_SFR_FET_ACTIVE_INVERT << IT_SCR_SFR_FET_ACTIVE_BIT
 293                       |IT_SCR_SFR_ENABLE_ON         << IT_SCR_SFR_ENABLE_BIT),
 294                      IT8172_PCI_IO_BASE + IT_SCR1_BASE + IT_SCR_SFR);
 295                 outb(IT_SCR_SCDR_RESET_MODE_ASYNC << IT_SCR_SCDR_RESET_MODE_BIT,
 296                      IT8172_PCI_IO_BASE + IT_SCR1_BASE + IT_SCR_SCDR);
 297         }
 298 #endif /* CONFIG_IT8172_SCR1 */
 299 }
 300
 301 #ifdef CONFIG_SERIO_I8042
 302 /*
 303  * According to the ITE Special BIOS Note for waking up the
 304  * keyboard controller...
 305  */
 306 static int init_8712_keyboard(void)
 307 {
 308         unsigned int cmd_port = 0x14000064;
 309         unsigned int data_port = 0x14000060;
 310                                  ^^^^^^^^^^^
 311         Somebody here doesn't grok the concept of io ports.
 312
 313         unsigned char data;
 314         int i;
 315
 316         outb(0xaa, cmd_port); /* send self-test cmd */
 317         i = 0;
 318         while (!(inb(cmd_port) & 0x1)) { /* wait output buffer full */
 319                 i++;
 320                 if (i > 0xffffff)
 321                         return 1;
 322         }
 323
 324         data = inb(data_port);
 325         outb(0xcb, cmd_port); /* set ps2 mode */
 326         while (inb(cmd_port) & 0x2) { /* wait while input buffer full */
 327                 i++;
 328                 if (i > 0xffffff)
 329                         return 1;
 330         }
 331         outb(0x01, data_port);
 332         while (inb(cmd_port) & 0x2) { /* wait while input buffer full */
 333                 i++;
 334                 if (i > 0xffffff)
 335                         return 1;
 336         }
 337
 338         outb(0x60, cmd_port); /* write 8042 command byte */
 339         while (inb(cmd_port) & 0x2) { /* wait while input buffer full */
 340                 i++;
 341                 if (i > 0xffffff)
 342                         return 1;
 343         }
 344         outb(0x45, data_port); /* at interface, keyboard enabled, system flag */
 345         while (inb(cmd_port) & 0x2) { /* wait while input buffer full */
 346                 i++;
 347                 if (i > 0xffffff)
 348                         return 1;
 349         }
 350
 351         outb(0xae, cmd_port); /* enable interface */
 352         return 0;
 353 }
 354 #endif