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
  64 #ifdef CONFIG_IT8172_REVC
  65 struct {
  66     struct resource ram;
  67     struct resource pci_mem;
  68     struct resource pci_io;
  69     struct resource flash;
  70     struct resource boot;
  71 } it8172_resources = {
  72         {
  73                 .start  = 0,                            /* to be initted */
  74                 .end    = 0,
  75                 .name   = "RAM",
  76                 .flags  = IORESOURCE_MEM
  77         }, {
  78                 .start  = 0x10000000,
  79                 .end    = 0x13FFFFFF,
  80                 .name   = "PCI Mem",
  81                 .flags  = IORESOURCE_MEM
  82         }, {
  83                 .start  = 0x14000000,
  84                 .end    = 0x17FFFFFF
  85                 .name   = "PCI I/O",
  86         }, {
  87                 .start  = 0x08000000,
  88                 .end    = 0x0CFFFFFF
  89                 .name   = "Flash",
  90         }, {
  91                 .start  = 0x1FC00000,
  92                 .end    = 0x1FFFFFFF
  93                 .name   = "Boot ROM",
  94         }
  95 };
  96 #else
  97 struct {
  98     struct resource ram;
  99     struct resource pci_mem0;
 100     struct resource pci_mem1;
 101     struct resource pci_io;
 102     struct resource pci_mem2;
 103     struct resource pci_mem3;
 104     struct resource flash;
 105     struct resource boot;
 106 } it8172_resources = {
 107         {
 108                 .start  = 0,                            /* to be initted */
 109                 .end    = 0,
 110                 .name   = "RAM",
 111                 .flags  = IORESOURCE_MEM
 112         }, {
 113                 .start  = 0x0C000000,
 114                 .end    = 0x0FFFFFFF,
 115                 .name   = "PCI Mem0",
 116                 .flags  = IORESOURCE_MEM
 117          }, {
 118                 .start  = 0x10000000,
 119                 .end    = 0x13FFFFFF,
 120                 .name   = "PCI Mem1",
 121                 .flags  = IORESOURCE_MEM
 122          }, {
 123                 .start  = 0x14000000,
 124                 .end    = 0x17FFFFFF
 125                 .name   = "PCI I/O",
 126         }, {
 127                 .start  = 0x1A000000,
 128                 .end    = 0x1BFFFFFF,
 129                 .name   = "PCI Mem2",
 130                 .flags  = IORESOURCE_MEM
 131         }, {
 132                 .start  = 0x1C000000,
 133                 .end    = 0x1FBFFFFF,
 134                 .name   = "PCI Mem3",
 135                 .flags  = IORESOURCE_MEM
 136         }, {
 137                 .start  = 0x08000000,
 138                 .end    = 0x0CFFFFFF
 139                 .name   = "Flash",
 140         }, {
 141                 .start  = 0x1FC00000,
 142                 .end    = 0x1FFFFFFF
 143                 .name   = "Boot ROM",
 144         }
 145 };
 146 #endif
 147
 148
 149 void __init it8172_init_ram_resource(unsigned long memsize)
 150 {
 151         it8172_resources.ram.end = memsize;
 152 }
 153
 154 void __init plat_mem_setup(void)
 155 {
 156         unsigned short dsr;
 157         char *argptr;
 158
 159         argptr = prom_getcmdline();
 160 #ifdef CONFIG_SERIAL_CONSOLE
 161         if ((argptr = strstr(argptr, "console=")) == NULL) {
 162                 argptr = prom_getcmdline();
 163                 strcat(argptr, " console=ttyS0,115200");
 164         }
 165 #endif
 166
 167         clear_c0_status(ST0_FR);
 168
 169         board_time_init = it8172_time_init;
 170
 171         _machine_restart = it8172_restart;
 172         _machine_halt = it8172_halt;
 173         pm_power_off = it8172_power_off;
 174
 175         /*
 176          * IO/MEM resources.
 177          *
 178          * revisit this area.
 179          */
 180         set_io_port_base(KSEG1);
 181         ioport_resource.start = it8172_resources.pci_io.start;
 182         ioport_resource.end = it8172_resources.pci_io.end;
 183 #ifdef CONFIG_IT8172_REVC
 184         iomem_resource.start = it8172_resources.pci_mem.start;
 185         iomem_resource.end = it8172_resources.pci_mem.end;
 186 #else
 187         iomem_resource.start = it8172_resources.pci_mem0.start;
 188         iomem_resource.end = it8172_resources.pci_mem3.end;
 189 #endif
 190
 191 #ifdef CONFIG_BLK_DEV_INITRD
 192         ROOT_DEV = Root_RAM0;
 193 #endif
 194
 195         /*
 196          * Pull enabled devices out of standby
 197          */
 198         IT_IO_READ16(IT_PM_DSR, dsr);
 199
 200         /*
 201          * Fixme: This breaks when these drivers are modules!!!
 202          */
 203 #ifdef CONFIG_SOUND_IT8172
 204         dsr &= ~IT_PM_DSR_ACSB;
 205 #else
 206         dsr |= IT_PM_DSR_ACSB;
 207 #endif
 208 #ifdef CONFIG_BLK_DEV_IT8172
 209         dsr &= ~IT_PM_DSR_IDESB;
 210 #else
 211         dsr |= IT_PM_DSR_IDESB;
 212 #endif
 213         IT_IO_WRITE16(IT_PM_DSR, dsr);
 214
 215         InitLPCInterface();
 216
 217 #ifdef CONFIG_MIPS_ITE8172
 218         if (SearchIT8712()) {
 219                 printk("Found IT8712 Super IO\n");
 220                 /* enable IT8712 serial port */
 221                 LPCSetConfig(LDN_SERIAL1, 0x30, 0x01); /* enable */
 222                 LPCSetConfig(LDN_SERIAL1, 0x23, 0x01); /* clock selection */
 223 #ifdef CONFIG_SERIO_I8042
 224                 if (init_8712_keyboard()) {
 225                         printk("Unable to initialize keyboard\n");
 226                         LPCSetConfig(LDN_KEYBOARD, 0x30, 0x0); /* disable keyboard */
 227                 } else {
 228                         LPCSetConfig(LDN_KEYBOARD, 0x30, 0x1); /* enable keyboard */
 229                         LPCSetConfig(LDN_KEYBOARD, 0xf0, 0x2);
 230                         LPCSetConfig(LDN_KEYBOARD, 0x71, 0x3);
 231
 232                         LPCSetConfig(LDN_MOUSE, 0x30, 0x1); /* enable mouse */
 233
 234                         LPCSetConfig(0x4, 0x30, 0x1);
 235                         LPCSetConfig(0x4, 0xf4, LPCGetConfig(0x4, 0xf4) | 0x80);
 236
 237                         if ((LPCGetConfig(LDN_KEYBOARD, 0x30) == 0) ||
 238                                         (LPCGetConfig(LDN_MOUSE, 0x30) == 0))
 239                                 printk("Error: keyboard or mouse not enabled\n");
 240
 241                 }
 242 #endif
 243         }
 244         else {
 245                 printk("IT8712 Super IO not found\n");
 246         }
 247 #endif
 248
 249 #ifdef CONFIG_IT8172_CIR
 250         {
 251                 unsigned long data;
 252                 //printk("Enabling CIR0\n");
 253                 IT_IO_READ16(IT_PM_DSR, data);
 254                 data &= ~IT_PM_DSR_CIR0SB;
 255                 IT_IO_WRITE16(IT_PM_DSR, data);
 256                 //printk("DSR register: %x\n", (unsigned)IT_IO_READ16(IT_PM_DSR, data));
 257         }
 258 #endif
 259 #ifdef CONFIG_IT8172_SCR0
 260         {
 261                 unsigned i;
 262                 /* Enable Smart Card Reader 0 */
 263                 /* First power it up */
 264                 IT_IO_READ16(IT_PM_DSR, i);
 265                 i &= ~IT_PM_DSR_SCR0SB;
 266                 IT_IO_WRITE16(IT_PM_DSR, i);
 267                 /* Then initialize its registers */
 268                 outb(( IT_SCR_SFR_GATE_UART_OFF     << IT_SCR_SFR_GATE_UART_BIT
 269                       |IT_SCR_SFR_FET_CHARGE_213_US << IT_SCR_SFR_FET_CHARGE_BIT
 270                       |IT_SCR_SFR_CARD_FREQ_3_5_MHZ << IT_SCR_SFR_CARD_FREQ_BIT
 271                       |IT_SCR_SFR_FET_ACTIVE_INVERT << IT_SCR_SFR_FET_ACTIVE_BIT
 272                       |IT_SCR_SFR_ENABLE_ON         << IT_SCR_SFR_ENABLE_BIT),
 273                      IT8172_PCI_IO_BASE + IT_SCR0_BASE + IT_SCR_SFR);
 274                 outb(IT_SCR_SCDR_RESET_MODE_ASYNC << IT_SCR_SCDR_RESET_MODE_BIT,
 275                      IT8172_PCI_IO_BASE + IT_SCR0_BASE + IT_SCR_SCDR);
 276         }
 277 #endif /* CONFIG_IT8172_SCR0 */
 278 #ifdef CONFIG_IT8172_SCR1
 279         {
 280                 unsigned i;
 281                 /* Enable Smart Card Reader 1 */
 282                 /* First power it up */
 283                 IT_IO_READ16(IT_PM_DSR, i);
 284                 i &= ~IT_PM_DSR_SCR1SB;
 285                 IT_IO_WRITE16(IT_PM_DSR, i);
 286                 /* Then initialize its registers */
 287                 outb(( IT_SCR_SFR_GATE_UART_OFF     << IT_SCR_SFR_GATE_UART_BIT
 288                       |IT_SCR_SFR_FET_CHARGE_213_US << IT_SCR_SFR_FET_CHARGE_BIT
 289                       |IT_SCR_SFR_CARD_FREQ_3_5_MHZ << IT_SCR_SFR_CARD_FREQ_BIT
 290                       |IT_SCR_SFR_FET_ACTIVE_INVERT << IT_SCR_SFR_FET_ACTIVE_BIT
 291                       |IT_SCR_SFR_ENABLE_ON         << IT_SCR_SFR_ENABLE_BIT),
 292                      IT8172_PCI_IO_BASE + IT_SCR1_BASE + IT_SCR_SFR);
 293                 outb(IT_SCR_SCDR_RESET_MODE_ASYNC << IT_SCR_SCDR_RESET_MODE_BIT,
 294                      IT8172_PCI_IO_BASE + IT_SCR1_BASE + IT_SCR_SCDR);
 295         }
 296 #endif /* CONFIG_IT8172_SCR1 */
 297 }
 298
 299 #ifdef CONFIG_SERIO_I8042
 300 /*
 301  * According to the ITE Special BIOS Note for waking up the
 302  * keyboard controller...
 303  */
 304 static int init_8712_keyboard(void)
 305 {
 306         unsigned int cmd_port = 0x14000064;
 307         unsigned int data_port = 0x14000060;
 308                                  ^^^^^^^^^^^
 309         Somebody here doesn't grok the concept of io ports.
 310
 311         unsigned char data;
 312         int i;
 313
 314         outb(0xaa, cmd_port); /* send self-test cmd */
 315         i = 0;
 316         while (!(inb(cmd_port) & 0x1)) { /* wait output buffer full */
 317                 i++;
 318                 if (i > 0xffffff)
 319                         return 1;
 320         }
 321
 322         data = inb(data_port);
 323         outb(0xcb, cmd_port); /* set ps2 mode */
 324         while (inb(cmd_port) & 0x2) { /* wait while input buffer full */
 325                 i++;
 326                 if (i > 0xffffff)
 327                         return 1;
 328         }
 329         outb(0x01, data_port);
 330         while (inb(cmd_port) & 0x2) { /* wait while input buffer full */
 331                 i++;
 332                 if (i > 0xffffff)
 333                         return 1;
 334         }
 335
 336         outb(0x60, cmd_port); /* write 8042 command byte */
 337         while (inb(cmd_port) & 0x2) { /* wait while input buffer full */
 338                 i++;
 339                 if (i > 0xffffff)
 340                         return 1;
 341         }
 342         outb(0x45, data_port); /* at interface, keyboard enabled, system flag */
 343         while (inb(cmd_port) & 0x2) { /* wait while input buffer full */
 344                 i++;
 345                 if (i > 0xffffff)
 346                         return 1;
 347         }
 348
 349         outb(0xae, cmd_port); /* enable interface */
 350         return 0;
 351 }
 352 #endif