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/serial_reg.h>
  33 #include <linux/major.h>
  34 #include <linux/kdev_t.h>
  35 #include <linux/root_dev.h>
  36 #include <linux/pm.h>
  37
  38 #include <asm/cpu.h>
  39 #include <asm/time.h>
  40 #include <asm/io.h>
  41 #include <asm/bootinfo.h>
  42 #include <asm/irq.h>
  43 #include <asm/mipsregs.h>
  44 #include <asm/reboot.h>
  45 #include <asm/traps.h>
  46 #include <asm/it8172/it8172.h>
  47 #include <asm/it8712.h>
  48
  49 extern struct resource ioport_resource;
  50 #ifdef CONFIG_SERIO_I8042
  51 int init_8712_keyboard(void);
  52 #endif
  53
  54 extern int SearchIT8712(void);
  55 extern void InitLPCInterface(void);
  56 extern char * __init prom_getcmdline(void);
  57 extern void it8172_restart(char *command);
  58 extern void it8172_halt(void);
  59 extern void it8172_power_off(void);
  60
  61 extern void (*board_time_init)(void);
  62 extern void (*board_timer_setup)(struct irqaction *irq);
  63 extern void it8172_time_init(void);
  64 extern void it8172_timer_setup(struct irqaction *irq);
  65
  66 #ifdef CONFIG_IT8172_REVC
  67 struct {
  68     struct resource ram;
  69     struct resource pci_mem;
  70     struct resource pci_io;
  71     struct resource flash;
  72     struct resource boot;
  73 } it8172_resources = {
  74         {
  75                 .start  = 0,                            /* to be initted */
  76                 .end    = 0,
  77                 .name   = "RAM",
  78                 .flags  = IORESOURCE_MEM
  79         }, {
  80                 .start  = 0x10000000,
  81                 .end    = 0x13FFFFFF,
  82                 .name   = "PCI Mem",
  83                 .flags  = IORESOURCE_MEM
  84         }, {
  85                 .start  = 0x14000000,
  86                 .end    = 0x17FFFFFF
  87                 .name   = "PCI I/O",
  88         }, {
  89                 .start  = 0x08000000,
  90                 .end    = 0x0CFFFFFF
  91                 .name   = "Flash",
  92         }, {
  93                 .start  = 0x1FC00000,
  94                 .end    = 0x1FFFFFFF
  95                 .name   = "Boot ROM",
  96         }
  97 };
  98 #else
  99 struct {
 100     struct resource ram;
 101     struct resource pci_mem0;
 102     struct resource pci_mem1;
 103     struct resource pci_io;
 104     struct resource pci_mem2;
 105     struct resource pci_mem3;
 106     struct resource flash;
 107     struct resource boot;
 108 } it8172_resources = {
 109         {
 110                 .start  = 0,                            /* to be initted */
 111                 .end    = 0,
 112                 .name   = "RAM",
 113                 .flags  = IORESOURCE_MEM
 114         }, {
 115                 .start  = 0x0C000000,
 116                 .end    = 0x0FFFFFFF,
 117                 .name   = "PCI Mem0",
 118                 .flags  = IORESOURCE_MEM
 119          }, {
 120                 .start  = 0x10000000,
 121                 .end    = 0x13FFFFFF,
 122                 .name   = "PCI Mem1",
 123                 .flags  = IORESOURCE_MEM
 124          }, {
 125                 .start  = 0x14000000,
 126                 .end    = 0x17FFFFFF
 127                 .name   = "PCI I/O",
 128         }, {
 129                 .start  = 0x1A000000,
 130                 .end    = 0x1BFFFFFF,
 131                 .name   = "PCI Mem2",
 132                 .flags  = IORESOURCE_MEM
 133         }, {
 134                 .start  = 0x1C000000,
 135                 .end    = 0x1FBFFFFF,
 136                 .name   = "PCI Mem3",
 137                 .flags  = IORESOURCE_MEM
 138         }, {
 139                 .start  = 0x08000000,
 140                 .end    = 0x0CFFFFFF
 141                 .name   = "Flash",
 142         }, {
 143                 .start  = 0x1FC00000,
 144                 .end    = 0x1FFFFFFF
 145                 .name   = "Boot ROM",
 146         }
 147 };
 148 #endif
 149
 150
 151 void __init it8172_init_ram_resource(unsigned long memsize)
 152 {
 153         it8172_resources.ram.end = memsize;
 154 }
 155
 156 void __init plat_mem_setup(void)
 157 {
 158         unsigned short dsr;
 159         char *argptr;
 160
 161         argptr = prom_getcmdline();
 162 #ifdef CONFIG_SERIAL_CONSOLE
 163         if ((argptr = strstr(argptr, "console=")) == NULL) {
 164                 argptr = prom_getcmdline();
 165                 strcat(argptr, " console=ttyS0,115200");
 166         }
 167 #endif
 168
 169         clear_c0_status(ST0_FR);
 170
 171         board_time_init = it8172_time_init;
 172         board_timer_setup = it8172_timer_setup;
 173
 174         _machine_restart = it8172_restart;
 175         _machine_halt = it8172_halt;
 176         pm_power_off = it8172_power_off;
 177
 178         /*
 179          * IO/MEM resources.
 180          *
 181          * revisit this area.
 182          */
 183         set_io_port_base(KSEG1);
 184         ioport_resource.start = it8172_resources.pci_io.start;
 185         ioport_resource.end = it8172_resources.pci_io.end;
 186 #ifdef CONFIG_IT8172_REVC
 187         iomem_resource.start = it8172_resources.pci_mem.start;
 188         iomem_resource.end = it8172_resources.pci_mem.end;
 189 #else
 190         iomem_resource.start = it8172_resources.pci_mem0.start;
 191         iomem_resource.end = it8172_resources.pci_mem3.end;
 192 #endif
 193
 194 #ifdef CONFIG_BLK_DEV_INITRD
 195         ROOT_DEV = Root_RAM0;
 196 #endif
 197
 198         /*
 199          * Pull enabled devices out of standby
 200          */
 201         IT_IO_READ16(IT_PM_DSR, dsr);
 202
 203         /*
 204          * Fixme: This breaks when these drivers are modules!!!
 205          */
 206 #ifdef CONFIG_SOUND_IT8172
 207         dsr &= ~IT_PM_DSR_ACSB;
 208 #else
 209         dsr |= IT_PM_DSR_ACSB;
 210 #endif
 211 #ifdef CONFIG_BLK_DEV_IT8172
 212         dsr &= ~IT_PM_DSR_IDESB;
 213 #else
 214         dsr |= IT_PM_DSR_IDESB;
 215 #endif
 216         IT_IO_WRITE16(IT_PM_DSR, dsr);
 217
 218         InitLPCInterface();
 219
 220 #ifdef CONFIG_MIPS_ITE8172
 221         if (SearchIT8712()) {
 222                 printk("Found IT8712 Super IO\n");
 223                 /* enable IT8712 serial port */
 224                 LPCSetConfig(LDN_SERIAL1, 0x30, 0x01); /* enable */
 225                 LPCSetConfig(LDN_SERIAL1, 0x23, 0x01); /* clock selection */
 226 #ifdef CONFIG_SERIO_I8042
 227                 if (init_8712_keyboard()) {
 228                         printk("Unable to initialize keyboard\n");
 229                         LPCSetConfig(LDN_KEYBOARD, 0x30, 0x0); /* disable keyboard */
 230                 } else {
 231                         LPCSetConfig(LDN_KEYBOARD, 0x30, 0x1); /* enable keyboard */
 232                         LPCSetConfig(LDN_KEYBOARD, 0xf0, 0x2);
 233                         LPCSetConfig(LDN_KEYBOARD, 0x71, 0x3);
 234
 235                         LPCSetConfig(LDN_MOUSE, 0x30, 0x1); /* enable mouse */
 236
 237                         LPCSetConfig(0x4, 0x30, 0x1);
 238                         LPCSetConfig(0x4, 0xf4, LPCGetConfig(0x4, 0xf4) | 0x80);
 239
 240                         if ((LPCGetConfig(LDN_KEYBOARD, 0x30) == 0) ||
 241                                         (LPCGetConfig(LDN_MOUSE, 0x30) == 0))
 242                                 printk("Error: keyboard or mouse not enabled\n");
 243
 244                 }
 245 #endif
 246         }
 247         else {
 248                 printk("IT8712 Super IO not found\n");
 249         }
 250 #endif
 251
 252 #ifdef CONFIG_IT8172_CIR
 253         {
 254                 unsigned long data;
 255                 //printk("Enabling CIR0\n");
 256                 IT_IO_READ16(IT_PM_DSR, data);
 257                 data &= ~IT_PM_DSR_CIR0SB;
 258                 IT_IO_WRITE16(IT_PM_DSR, data);
 259                 //printk("DSR register: %x\n", (unsigned)IT_IO_READ16(IT_PM_DSR, data));
 260         }
 261 #endif
 262 #ifdef CONFIG_IT8172_SCR0
 263         {
 264                 unsigned i;
 265                 /* Enable Smart Card Reader 0 */
 266                 /* First power it up */
 267                 IT_IO_READ16(IT_PM_DSR, i);
 268                 i &= ~IT_PM_DSR_SCR0SB;
 269                 IT_IO_WRITE16(IT_PM_DSR, i);
 270                 /* Then initialize its registers */
 271                 outb(( IT_SCR_SFR_GATE_UART_OFF     << IT_SCR_SFR_GATE_UART_BIT
 272                       |IT_SCR_SFR_FET_CHARGE_213_US << IT_SCR_SFR_FET_CHARGE_BIT
 273                       |IT_SCR_SFR_CARD_FREQ_3_5_MHZ << IT_SCR_SFR_CARD_FREQ_BIT
 274                       |IT_SCR_SFR_FET_ACTIVE_INVERT << IT_SCR_SFR_FET_ACTIVE_BIT
 275                       |IT_SCR_SFR_ENABLE_ON         << IT_SCR_SFR_ENABLE_BIT),
 276                      IT8172_PCI_IO_BASE + IT_SCR0_BASE + IT_SCR_SFR);
 277                 outb(IT_SCR_SCDR_RESET_MODE_ASYNC << IT_SCR_SCDR_RESET_MODE_BIT,
 278                      IT8172_PCI_IO_BASE + IT_SCR0_BASE + IT_SCR_SCDR);
 279         }
 280 #endif /* CONFIG_IT8172_SCR0 */
 281 #ifdef CONFIG_IT8172_SCR1
 282         {
 283                 unsigned i;
 284                 /* Enable Smart Card Reader 1 */
 285                 /* First power it up */
 286                 IT_IO_READ16(IT_PM_DSR, i);
 287                 i &= ~IT_PM_DSR_SCR1SB;
 288                 IT_IO_WRITE16(IT_PM_DSR, i);
 289                 /* Then initialize its registers */
 290                 outb(( IT_SCR_SFR_GATE_UART_OFF     << IT_SCR_SFR_GATE_UART_BIT
 291                       |IT_SCR_SFR_FET_CHARGE_213_US << IT_SCR_SFR_FET_CHARGE_BIT
 292                       |IT_SCR_SFR_CARD_FREQ_3_5_MHZ << IT_SCR_SFR_CARD_FREQ_BIT
 293                       |IT_SCR_SFR_FET_ACTIVE_INVERT << IT_SCR_SFR_FET_ACTIVE_BIT
 294                       |IT_SCR_SFR_ENABLE_ON         << IT_SCR_SFR_ENABLE_BIT),
 295                      IT8172_PCI_IO_BASE + IT_SCR1_BASE + IT_SCR_SFR);
 296                 outb(IT_SCR_SCDR_RESET_MODE_ASYNC << IT_SCR_SCDR_RESET_MODE_BIT,
 297                      IT8172_PCI_IO_BASE + IT_SCR1_BASE + IT_SCR_SCDR);
 298         }
 299 #endif /* CONFIG_IT8172_SCR1 */
 300 }
 301
 302 #ifdef CONFIG_SERIO_I8042
 303 /*
 304  * According to the ITE Special BIOS Note for waking up the
 305  * keyboard controller...
 306  */
 307 static int init_8712_keyboard(void)
 308 {
 309         unsigned int cmd_port = 0x14000064;
 310         unsigned int data_port = 0x14000060;
 311                                  ^^^^^^^^^^^
 312         Somebody here doesn't grok the concept of io ports.
 313
 314         unsigned char data;
 315         int i;
 316
 317         outb(0xaa, cmd_port); /* send self-test cmd */
 318         i = 0;
 319         while (!(inb(cmd_port) & 0x1)) { /* wait output buffer full */
 320                 i++;
 321                 if (i > 0xffffff)
 322                         return 1;
 323         }
 324
 325         data = inb(data_port);
 326         outb(0xcb, cmd_port); /* set ps2 mode */
 327         while (inb(cmd_port) & 0x2) { /* wait while input buffer full */
 328                 i++;
 329                 if (i > 0xffffff)
 330                         return 1;
 331         }
 332         outb(0x01, data_port);
 333         while (inb(cmd_port) & 0x2) { /* wait while input buffer full */
 334                 i++;
 335                 if (i > 0xffffff)
 336                         return 1;
 337         }
 338
 339         outb(0x60, cmd_port); /* write 8042 command byte */
 340         while (inb(cmd_port) & 0x2) { /* wait while input buffer full */
 341                 i++;
 342                 if (i > 0xffffff)
 343                         return 1;
 344         }
 345         outb(0x45, data_port); /* at interface, keyboard enabled, system flag */
 346         while (inb(cmd_port) & 0x2) { /* wait while input buffer full */
 347                 i++;
 348                 if (i > 0xffffff)
 349                         return 1;
 350         }
 351
 352         outb(0xae, cmd_port); /* enable interface */
 353         return 0;
 354 }
 355 #endif