/*
* Toshiba rbtx4927 specific setup
*
* Author: MontaVista Software, Inc.
* source@mvista.com
*
* Copyright 2001-2002 MontaVista Software Inc.
*
* Copyright (C) 1996, 1997, 2001 Ralf Baechle
* Copyright (C) 2000 RidgeRun, Inc.
* Author: RidgeRun, Inc.
* glonnon@ridgerun.com, skranz@ridgerun.com, stevej@ridgerun.com
*
* Copyright 2001 MontaVista Software Inc.
* Author: jsun@mvista.com or jsun@junsun.net
*
* Copyright 2002 MontaVista Software Inc.
* Author: Michael Pruznick, michael_pruznick@mvista.com
*
* Copyright (C) 2000-2001 Toshiba Corporation
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/config.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/mm.h>
#include <linux/swap.h>
#include <linux/ioport.h>
#include <linux/sched.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/timex.h>
#include <asm/bootinfo.h>
#include <asm/page.h>
#include <asm/bootinfo.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/pci.h>
#include <asm/processor.h>
#include <asm/ptrace.h>
#include <asm/reboot.h>
#include <asm/time.h>
#include <linux/version.h>
#include <linux/bootmem.h>
#include <linux/blkdev.h>
#include <linux/console.h>
#ifdef CONFIG_RTC_DS1742
#include <asm/rtc_ds1742.h>
#endif
#ifdef CONFIG_TOSHIBA_FPCIB0
#include <asm/smsc_fdc37m81x.h>
#endif
#include <asm/tx4927/toshiba_rbtx4927.h>
#ifdef CONFIG_PCI
#include <asm/tx4927/tx4927_pci.h>
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <asm/pci_channel.h>
#endif
#ifdef CONFIG_PC_KEYB
#include <asm/keyboard.h>
#endif
#ifdef CONFIG_BLK_DEV_IDEPCI
#include <linux/hdreg.h>
#include <asm/ptrace.h>
#include <linux/ide.h>
extern struct ide_ops std_ide_ops;
#endif
#undef TOSHIBA_RBTX4927_SETUP_DEBUG
#ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
#define TOSHIBA_RBTX4927_SETUP_NONE 0x00000000
#define TOSHIBA_RBTX4927_SETUP_INFO ( 1 << 0 )
#define TOSHIBA_RBTX4927_SETUP_WARN ( 1 << 1 )
#define TOSHIBA_RBTX4927_SETUP_EROR ( 1 << 2 )
#define TOSHIBA_RBTX4927_SETUP_EFWFU ( 1 << 3 )
#define TOSHIBA_RBTX4927_SETUP_SETUP ( 1 << 4 )
#define TOSHIBA_RBTX4927_SETUP_TIME_INIT ( 1 << 5 )
#define TOSHIBA_RBTX4927_SETUP_TIMER_SETUP ( 1 << 6 )
#define TOSHIBA_RBTX4927_SETUP_PCIBIOS ( 1 << 7 )
#define TOSHIBA_RBTX4927_SETUP_PCI1 ( 1 << 8 )
#define TOSHIBA_RBTX4927_SETUP_PCI2 ( 1 << 9 )
#define TOSHIBA_RBTX4927_SETUP_PCI66 ( 1 << 10 )
#define TOSHIBA_RBTX4927_SETUP_ALL 0xffffffff
#endif
#ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
static const u32 toshiba_rbtx4927_setup_debug_flag =
(TOSHIBA_RBTX4927_SETUP_NONE | TOSHIBA_RBTX4927_SETUP_INFO |
TOSHIBA_RBTX4927_SETUP_WARN | TOSHIBA_RBTX4927_SETUP_EROR |
TOSHIBA_RBTX4927_SETUP_EFWFU | TOSHIBA_RBTX4927_SETUP_SETUP |
TOSHIBA_RBTX4927_SETUP_TIME_INIT | TOSHIBA_RBTX4927_SETUP_TIMER_SETUP
| TOSHIBA_RBTX4927_SETUP_PCIBIOS | TOSHIBA_RBTX4927_SETUP_PCI1 |
TOSHIBA_RBTX4927_SETUP_PCI2 | TOSHIBA_RBTX4927_SETUP_PCI66);
#endif
#ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
#define TOSHIBA_RBTX4927_SETUP_DPRINTK(flag,str...) \
if ( (toshiba_rbtx4927_setup_debug_flag) & (flag) ) \
{ \
char tmp[100]; \
sprintf( tmp, str ); \
printk( "%s(%s:%u)::%s", __FUNCTION__, __FILE__, __LINE__, tmp ); \
}
#else
#define TOSHIBA_RBTX4927_SETUP_DPRINTK(flag,str...)
#endif
/* These functions are used for rebooting or halting the machine*/
extern void toshiba_rbtx4927_restart(char *command);
extern void toshiba_rbtx4927_halt(void);
extern void toshiba_rbtx4927_power_off(void);
int tx4927_using_backplane = 0;
extern void gt64120_time_init(void);
extern void toshiba_rbtx4927_irq_setup(void);
#ifdef CONFIG_PCI
#define CONFIG_TX4927BUG_WORKAROUND
#undef TX4927_SUPPORT_COMMAND_IO
#undef TX4927_SUPPORT_PCI_66
int tx4927_cpu_clock = 100000000; /* 100MHz */
unsigned long mips_pci_io_base;
unsigned long mips_pci_io_size;
unsigned long mips_pci_mem_base;
unsigned long mips_pci_mem_size;
/* for legacy I/O, PCI I/O PCI Bus address must be 0 */
unsigned long mips_pci_io_pciaddr = 0;
unsigned long mips_memory_upper;
static int tx4927_ccfg_toeon = 1;
static int tx4927_pcic_trdyto = 0; /* default: disabled */
unsigned long tx4927_ce_base[8];
void tx4927_pci_setup(void);
void tx4927_reset_pci_pcic(void);
#ifdef TX4927_SUPPORT_PCI_66
void tx4927_pci66_setup(void);
extern int tx4927_pci66_check(void);
#endif
int tx4927_pci66 = 0; /* 0:auto */
#endif
char *toshiba_name = "";
#ifdef CONFIG_PCI
void tx4927_dump_pcic_settings(void)
{
printk("%s pcic settings:",toshiba_name);
{
int i;
unsigned long *preg = (unsigned long *) tx4927_pcicptr;
for (i = 0; i < sizeof(struct tx4927_pcic_reg); i += 4) {
if (i % 32 == 0)
printk("\n%04x:", i);
if (preg == &tx4927_pcicptr->g2pintack
|| preg == &tx4927_pcicptr->g2pspc
#ifdef CONFIG_TX4927BUG_WORKAROUND
|| preg == &tx4927_pcicptr->g2pcfgadrs
|| preg == &tx4927_pcicptr->g2pcfgdata
#endif
) {
printk(" XXXXXXXX");
preg++;
continue;
}
printk(" %08lx", *preg++);
if (preg == &tx4927_pcicptr->g2pcfgadrs)
break;
}
printk("\n");
}
}
static void tx4927_pcierr_interrupt(int irq, void *dev_id,
struct pt_regs *regs)
{
extern void tx4927_dump_pcic_settings(void);
#ifdef CONFIG_BLK_DEV_IDEPCI
/* ignore MasterAbort for ide probing... */
if (irq == TX4927_IRQ_IRC_PCIERR &&
((tx4927_pcicptr->pcistatus >> 16) & 0xf900) ==
PCI_STATUS_REC_MASTER_ABORT) {
tx4927_pcicptr->pcistatus =
(tx4927_pcicptr->
pcistatus & 0x0000ffff) | (PCI_STATUS_REC_MASTER_ABORT
<< 16);
return;
}
#endif
printk("PCI error interrupt (irq 0x%x).\n", irq);
printk("pcistat:%04x, g2pstatus:%08lx, pcicstatus:%08lx\n",
(unsigned short) (tx4927_pcicptr->pcistatus >> 16),
tx4927_pcicptr->g2pstatus, tx4927_pcicptr->pcicstatus);
printk("ccfg:%08lx, tear:%02lx_%08lx\n",
(unsigned long) tx4927_ccfgptr->ccfg,
(unsigned long) (tx4927_ccfgptr->tear >> 32),
(unsigned long) tx4927_ccfgptr->tear);
show_regs(regs);
//tx4927_dump_pcic_settings();
panic("PCI error at PC:%08lx.", regs->cp0_epc);
}
static struct irqaction pcic_action = {
tx4927_pcierr_interrupt, 0, 0, "PCI-C", NULL, NULL
};
static struct irqaction pcierr_action = {
tx4927_pcierr_interrupt, 0, 0, "PCI-ERR", NULL, NULL
};
void __init toshiba_rbtx4927_pci_irq_init(void)
{
setup_irq(TX4927_IRQ_IRC_PCIC, &pcic_action);
setup_irq(TX4927_IRQ_IRC_PCIERR, &pcierr_action);
return;
}
void tx4927_reset_pci_pcic(void)
{
/* Reset PCI Bus */
*tx4927_pcireset_ptr = 1;
/* Reset PCIC */
tx4927_ccfgptr->clkctr |= TX4927_CLKCTR_PCIRST;
udelay(10000);
/* clear PCIC reset */
tx4927_ccfgptr->clkctr &= ~TX4927_CLKCTR_PCIRST;
*tx4927_pcireset_ptr = 0;
}
#endif /* CONFIG_PCI */
#ifdef CONFIG_PCI
#ifdef TX4927_SUPPORT_PCI_66
void tx4927_pci66_setup(void)
{
int pciclk, pciclkin = 1;
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI66,
"-\n");
if (tx4927_ccfgptr->ccfg & TX4927_CCFG_PCI66)
return;
tx4927_reset_pci_pcic();
/* Assert M66EN */
tx4927_ccfgptr->ccfg |= TX4927_CCFG_PCI66;
/* set PCICLK 66MHz */
if (tx4927_ccfgptr->pcfg & TX4927_PCFG_PCICLKEN_ALL) {
unsigned int pcidivmode = 0;
pcidivmode =
(unsigned long) tx4927_ccfgptr->
ccfg & TX4927_CCFG_PCIDIVMODE_MASK;
if (tx4927_cpu_clock >= 170000000) {
/* CPU 200MHz */
pcidivmode = TX4927_CCFG_PCIDIVMODE_3;
pciclk = tx4927_cpu_clock / 3;
} else {
/* CPU 166MHz */
pcidivmode = TX4927_CCFG_PCIDIVMODE_2_5;
pciclk = tx4927_cpu_clock * 2 / 5;
}
tx4927_ccfgptr->ccfg =
(tx4927_ccfgptr->ccfg & ~TX4927_CCFG_PCIDIVMODE_MASK)
| pcidivmode;
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_PCI66,
":PCICLK: ccfg:0x%08lx\n",
(unsigned long) tx4927_ccfgptr->ccfg);
} else {
int pciclk_setting = *tx4927_pci_clk_ptr;
pciclkin = 0;
pciclk = 66666666;
pciclk_setting &= ~TX4927_PCI_CLK_MASK;
pciclk_setting |= TX4927_PCI_CLK_66;
*tx4927_pci_clk_ptr = pciclk_setting;
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_PCI66,
"PCICLK: pci_clk:%02x\n", *tx4927_pci_clk_ptr);
}
udelay(10000);
/* clear PCIC reset */
tx4927_ccfgptr->clkctr &= ~TX4927_CLKCTR_PCIRST;
/* clear PCI reset */
*tx4927_pcireset_ptr = 0;
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI66,
"+\n");
return;
}
#endif /* TX4927_SUPPORT_PCI_66 */
void print_pci_status(void)
{
printk("PCI STATUS %lx\n", tx4927_pcicptr->pcistatus);
printk("PCIC STATUS %lx\n", tx4927_pcicptr->pcicstatus);
}
static struct pci_dev *fake_pci_dev(struct pci_channel *hose,
int top_bus, int busnr, int devfn)
{
static struct pci_dev dev;
static struct pci_bus bus;
dev.bus = &bus;
dev.sysdata = hose;
dev.devfn = devfn;
bus.number = busnr;
bus.ops = hose->pci_ops;
if (busnr != top_bus)
/* Fake a parent bus structure. */
bus.parent = &bus;
else
bus.parent = NULL;
return &dev;
}
#define EARLY_PCI_OP(rw, size, type) \
static int early_##rw##_config_##size(struct pci_channel *hose, \
int top_bus, int bus, int devfn, int offset, type value) \
{ \
return pci_##rw##_config_##size( \
fake_pci_dev(hose, top_bus, bus, devfn), \
offset, value); \
}
EARLY_PCI_OP(read, byte, u8 *)
EARLY_PCI_OP(read, word, u16 *)
EARLY_PCI_OP(read, dword, u32 *)
EARLY_PCI_OP(write, byte, u8)
EARLY_PCI_OP(write, word, u16)
EARLY_PCI_OP(write, dword, u32)
static int __init tx4927_pcibios_init(int busno, struct pci_channel *hose)
{
u32 pci_devfn;
int devfn_start = 0;
int devfn_stop = 0xff;
unsigned int id;
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
"-\n");
if (hose->first_devfn)
devfn_start = hose->first_devfn;
if (hose->last_devfn)
devfn_stop = hose->last_devfn;
for (pci_devfn = devfn_start; pci_devfn < devfn_stop; pci_devfn++) {
early_read_config_dword(hose, busno, busno, pci_devfn,
PCI_VENDOR_ID, &id);
if (id == 0xffffffff) {
continue;
}
if (id == 0x94601055) {
u8 v08_64;
u32 v32_b0;
u8 v08_e1;
char *s = " sb/isa --";
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_PCIBIOS, ":%s beg\n",
s);
early_read_config_byte(hose, busno, busno,
pci_devfn, 0x64, &v08_64);
early_read_config_dword(hose, busno, busno,
pci_devfn, 0xb0, &v32_b0);
early_read_config_byte(hose, busno, busno,
pci_devfn, 0xe1, &v08_e1);
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
":%s beg 0x64 = 0x%02x\n", s, v08_64);
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
":%s beg 0xb0 = 0x%02x\n", s, v32_b0);
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
":%s beg 0xe1 = 0x%02x\n", s, v08_e1);
/* serial irq control */
v08_64 = 0xd0;
/* serial irq pin */
v32_b0 |= 0x00010000;
/* ide irq on isa14 */
v08_e1 &= 0xf0;
v08_e1 |= 0x0d;
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
":%s mid 0x64 = 0x%02x\n", s, v08_64);
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
":%s mid 0xb0 = 0x%02x\n", s, v32_b0);
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
":%s mid 0xe1 = 0x%02x\n", s, v08_e1);
early_write_config_byte(hose, busno, busno,
pci_devfn, 0x64, v08_64);
early_write_config_dword(hose, busno, busno,
pci_devfn, 0xb0, v32_b0);
early_write_config_byte(hose, busno, busno,
pci_devfn, 0xe1, v08_e1);
#ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
{
early_read_config_byte(hose, busno, busno,
pci_devfn, 0x64,
&v08_64);
early_read_config_dword(hose, busno, busno,
pci_devfn, 0xb0,
&v32_b0);
early_read_config_byte(hose, busno, busno,
pci_devfn, 0xe1,
&v08_e1);
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
":%s end 0x64 = 0x%02x\n", s, v08_64);
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
":%s end 0xb0 = 0x%02x\n", s, v32_b0);
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
":%s end 0xe1 = 0x%02x\n", s, v08_e1);
}
#endif
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_PCIBIOS, ":%s end\n",
s);
}
if (id == 0x91301055) {
u8 v08_04;
u8 v08_09;
u8 v08_41;
u8 v08_43;
u8 v08_5c;
char *s = " sb/ide --";
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_PCIBIOS, ":%s beg\n",
s);
early_read_config_byte(hose, busno, busno,
pci_devfn, 0x04, &v08_04);
early_read_config_byte(hose, busno, busno,
pci_devfn, 0x09, &v08_09);
early_read_config_byte(hose, busno, busno,
pci_devfn, 0x41, &v08_41);
early_read_config_byte(hose, busno, busno,
pci_devfn, 0x43, &v08_43);
early_read_config_byte(hose, busno, busno,
pci_devfn, 0x5c, &v08_5c);
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
":%s beg 0x04 = 0x%02x\n", s, v08_04);
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
":%s beg 0x09 = 0x%02x\n", s, v08_09);
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
":%s beg 0x41 = 0x%02x\n", s, v08_41);
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
":%s beg 0x43 = 0x%02x\n", s, v08_43);
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
":%s beg 0x5c = 0x%02x\n", s, v08_5c);
/* enable ide master/io */
v08_04 |= (PCI_COMMAND_MASTER | PCI_COMMAND_IO);
/* enable ide native mode */
v08_09 |= 0x05;
/* enable primary ide */
v08_41 |= 0x80;
/* enable secondary ide */
v08_43 |= 0x80;
/*
* !!! DO NOT REMOVE THIS COMMENT IT IS REQUIRED BY SMSC !!!
*
* This line of code is intended to provide the user with a work
* around solution to the anomalies cited in SMSC's anomaly sheet
* entitled, "SLC90E66 Functional Rev.J_0.1 Anomalies"".
*
* !!! DO NOT REMOVE THIS COMMENT IT IS REQUIRED BY SMSC !!!
*/
v08_5c |= 0x01;
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
":%s mid 0x04 = 0x%02x\n", s, v08_04);
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
":%s mid 0x09 = 0x%02x\n", s, v08_09);
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
":%s mid 0x41 = 0x%02x\n", s, v08_41);
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
":%s mid 0x43 = 0x%02x\n", s, v08_43);
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
":%s mid 0x5c = 0x%02x\n", s, v08_5c);
early_write_config_byte(hose, busno, busno,
pci_devfn, 0x5c, v08_5c);
early_write_config_byte(hose, busno, busno,
pci_devfn, 0x04, v08_04);
early_write_config_byte(hose, busno, busno,
pci_devfn, 0x09, v08_09);
early_write_config_byte(hose, busno, busno,
pci_devfn, 0x41, v08_41);
early_write_config_byte(hose, busno, busno,
pci_devfn, 0x43, v08_43);
#ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
{
early_read_config_byte(hose, busno, busno,
pci_devfn, 0x04,
&v08_04);
early_read_config_byte(hose, busno, busno,
pci_devfn, 0x09,
&v08_09);
early_read_config_byte(hose, busno, busno,
pci_devfn, 0x41,
&v08_41);
early_read_config_byte(hose, busno, busno,
pci_devfn, 0x43,
&v08_43);
early_read_config_byte(hose, busno, busno,
pci_devfn, 0x5c,
&v08_5c);
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
":%s end 0x04 = 0x%02x\n", s, v08_04);
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
":%s end 0x09 = 0x%02x\n", s, v08_09);
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
":%s end 0x41 = 0x%02x\n", s, v08_41);
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
":%s end 0x43 = 0x%02x\n", s, v08_43);
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
":%s end 0x5c = 0x%02x\n", s, v08_5c);
}
#endif
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_PCIBIOS, ":%s end\n",
s);
}
}
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
"+\n");
return (busno);
}
extern struct resource pci_io_resource;
extern struct resource pci_mem_resource;
void tx4927_pci_setup(void)
{
static int called = 0;
extern unsigned int tx4927_get_mem_size(void);
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2, "-\n");
#ifndef TX4927_SUPPORT_PCI_66
if (tx4927_ccfgptr->ccfg & TX4927_CCFG_PCI66)
printk("PCI 66 current unsupported\n");
#endif
mips_memory_upper = tx4927_get_mem_size() << 20;
mips_memory_upper += KSEG0;
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
"0x%08lx=mips_memory_upper\n",
mips_memory_upper);
mips_pci_io_base = TX4927_PCIIO;
mips_pci_io_size = TX4927_PCIIO_SIZE;
mips_pci_mem_base = TX4927_PCIMEM;
mips_pci_mem_size = TX4927_PCIMEM_SIZE;
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
"0x%08lx=mips_pci_io_base\n",
mips_pci_io_base);
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
"0x%08lx=mips_pci_io_size\n",
mips_pci_io_size);
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
"0x%08lx=mips_pci_mem_base\n",
mips_pci_mem_base);
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
"0x%08lx=mips_pci_mem_size\n",
mips_pci_mem_size);
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
"0x%08lx=pci_io_resource.start\n",
pci_io_resource.start);
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
"0x%08lx=pci_io_resource.end\n",
pci_io_resource.end);
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
"0x%08lx=pci_mem_resource.start\n",
pci_mem_resource.start);
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
"0x%08lx=pci_mem_resource.end\n",
pci_mem_resource.end);
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
"0x%08lx=mips_io_port_base",
mips_io_port_base);
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
"setup pci_io_resource to 0x%08lx 0x%08lx\n",
pci_io_resource.start,
pci_io_resource.end);
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
"setup pci_mem_resource to 0x%08lx 0x%08lx\n",
pci_mem_resource.start,
pci_mem_resource.end);
if (!called) {
printk
("TX4927 PCIC -- DID:%04x VID:%04x RID:%02x Arbiter:%s\n",
(unsigned short) (tx4927_pcicptr->pciid >> 16),
(unsigned short) (tx4927_pcicptr->pciid & 0xffff),
(unsigned short) (tx4927_pcicptr->pciccrev & 0xff),
(!(tx4927_ccfgptr->
ccfg & TX4927_CCFG_PCIXARB)) ? "External" :
"Internal");
called = 1;
}
printk("%s PCIC --%s PCICLK:",toshiba_name,
(tx4927_ccfgptr->ccfg & TX4927_CCFG_PCI66) ? " PCI66" : "");
if (tx4927_ccfgptr->pcfg & TX4927_PCFG_PCICLKEN_ALL) {
int pciclk = 0;
switch ((unsigned long) tx4927_ccfgptr->
ccfg & TX4927_CCFG_PCIDIVMODE_MASK) {
case TX4927_CCFG_PCIDIVMODE_2_5:
pciclk = tx4927_cpu_clock * 2 / 5;
break;
case TX4927_CCFG_PCIDIVMODE_3:
pciclk = tx4927_cpu_clock / 3;
break;
case TX4927_CCFG_PCIDIVMODE_5:
pciclk = tx4927_cpu_clock / 5;
break;
case TX4927_CCFG_PCIDIVMODE_6:
pciclk = tx4927_cpu_clock / 6;
break;
}
printk("Internal(%dMHz)", pciclk / 1000000);
} else {
int pciclk = 0;
int pciclk_setting = *tx4927_pci_clk_ptr;
switch (pciclk_setting & TX4927_PCI_CLK_MASK) {
case TX4927_PCI_CLK_33:
pciclk = 33333333;
break;
case TX4927_PCI_CLK_25:
pciclk = 25000000;
break;
case TX4927_PCI_CLK_66:
pciclk = 66666666;
break;
case TX4927_PCI_CLK_50:
pciclk = 50000000;
break;
}
printk("External(%dMHz)", pciclk / 1000000);
}
printk("\n");
/* GB->PCI mappings */
tx4927_pcicptr->g2piomask = (mips_pci_io_size - 1) >> 4;
tx4927_pcicptr->g2piogbase = mips_pci_io_base |
#ifdef __BIG_ENDIAN
TX4927_PCIC_G2PIOGBASE_ECHG
#else
TX4927_PCIC_G2PIOGBASE_BSDIS
#endif
;
tx4927_pcicptr->g2piopbase = 0;
tx4927_pcicptr->g2pmmask[0] = (mips_pci_mem_size - 1) >> 4;
tx4927_pcicptr->g2pmgbase[0] = mips_pci_mem_base |
#ifdef __BIG_ENDIAN
TX4927_PCIC_G2PMnGBASE_ECHG
#else
TX4927_PCIC_G2PMnGBASE_BSDIS
#endif
;
tx4927_pcicptr->g2pmpbase[0] = mips_pci_mem_base;
tx4927_pcicptr->g2pmmask[1] = 0;
tx4927_pcicptr->g2pmgbase[1] = 0;
tx4927_pcicptr->g2pmpbase[1] = 0;
tx4927_pcicptr->g2pmmask[2] = 0;
tx4927_pcicptr->g2pmgbase[2] = 0;
tx4927_pcicptr->g2pmpbase[2] = 0;
/* PCI->GB mappings (I/O 256B) */
tx4927_pcicptr->p2giopbase = 0; /* 256B */
#ifdef TX4927_SUPPORT_COMMAND_IO
tx4927_pcicptr->p2giogbase = 0 | TX4927_PCIC_P2GIOGBASE_TIOEN |
#ifdef __BIG_ENDIAN
TX4927_PCIC_P2GIOGBASE_TECHG
#else
TX4927_PCIC_P2GIOGBASE_TBSDIS
#endif
;
#else
tx4927_pcicptr->p2giogbase = 0;
#endif
/* PCI->GB mappings (MEM 512MB) M0 gets all of memory */
tx4927_pcicptr->p2gm0plbase = 0;
tx4927_pcicptr->p2gm0pubase = 0;
tx4927_pcicptr->p2gmgbase[0] = 0 | TX4927_PCIC_P2GMnGBASE_TMEMEN |
#ifdef __BIG_ENDIAN
TX4927_PCIC_P2GMnGBASE_TECHG
#else
TX4927_PCIC_P2GMnGBASE_TBSDIS
#endif
;
/* PCI->GB mappings (MEM 16MB) -not used */
tx4927_pcicptr->p2gm1plbase = 0xffffffff;
#ifdef CONFIG_TX4927BUG_WORKAROUND
/*
* TX4927-PCIC-BUG: P2GM1PUBASE must be 0
* if P2GM0PUBASE was 0.
*/
tx4927_pcicptr->p2gm1pubase = 0;
#else
tx4927_pcicptr->p2gm1pubase = 0xffffffff;
#endif
tx4927_pcicptr->p2gmgbase[1] = 0;
/* PCI->GB mappings (MEM 1MB) -not used */
tx4927_pcicptr->p2gm2pbase = 0xffffffff;
tx4927_pcicptr->p2gmgbase[2] = 0;
/* Enable Initiator Memory 0 Space, I/O Space, Config */
tx4927_pcicptr->pciccfg &= TX4927_PCIC_PCICCFG_LBWC_MASK;
tx4927_pcicptr->pciccfg |=
TX4927_PCIC_PCICCFG_IMSE0 | TX4927_PCIC_PCICCFG_IISE |
TX4927_PCIC_PCICCFG_ICAE | TX4927_PCIC_PCICCFG_ATR;
/* Do not use MEMMUL, MEMINF: YMFPCI card causes M_ABORT. */
tx4927_pcicptr->pcicfg1 = 0;
if (tx4927_pcic_trdyto >= 0) {
tx4927_pcicptr->g2ptocnt &= ~0xff;
tx4927_pcicptr->g2ptocnt |= (tx4927_pcic_trdyto & 0xff);
//printk("%s PCIC -- TRDYTO:%02lx\n",toshiba_name,
// tx4927_pcicptr->g2ptocnt & 0xff);
}
/* Clear All Local Bus Status */
tx4927_pcicptr->pcicstatus = TX4927_PCIC_PCICSTATUS_ALL;
/* Enable All Local Bus Interrupts */
tx4927_pcicptr->pcicmask = TX4927_PCIC_PCICSTATUS_ALL;
/* Clear All Initiator Status */
tx4927_pcicptr->g2pstatus = TX4927_PCIC_G2PSTATUS_ALL;
/* Enable All Initiator Interrupts */
tx4927_pcicptr->g2pmask = TX4927_PCIC_G2PSTATUS_ALL;
/* Clear All PCI Status Error */
tx4927_pcicptr->pcistatus =
(tx4927_pcicptr->pcistatus & 0x0000ffff) |
(TX4927_PCIC_PCISTATUS_ALL << 16);
/* Enable All PCI Status Error Interrupts */
tx4927_pcicptr->pcimask = TX4927_PCIC_PCISTATUS_ALL;
/* PCIC Int => IRC IRQ16 */
tx4927_pcicptr->pcicfg2 =
(tx4927_pcicptr->pcicfg2 & 0xffffff00) | TX4927_IR_PCIC;
if (!(tx4927_ccfgptr->ccfg & TX4927_CCFG_PCIXARB)) {
/* XXX */
} else {
/* Reset Bus Arbiter */
tx4927_pcicptr->pbacfg = TX4927_PCIC_PBACFG_RPBA;
/* Enable Bus Arbiter */
tx4927_pcicptr->pbacfg = TX4927_PCIC_PBACFG_PBAEN;
}
tx4927_pcicptr->pcistatus = PCI_COMMAND_MASTER |
PCI_COMMAND_MEMORY |
#ifdef TX4927_SUPPORT_COMMAND_IO
PCI_COMMAND_IO |
#endif
PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
":pci setup complete:\n");
//tx4927_dump_pcic_settings();
{
struct pci_channel *p;
int busno;
busno = 0;
for (p = mips_pci_channels; p->pci_ops != NULL; p++) {
busno = tx4927_pcibios_init(busno, p) + 1;
}
}
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2, "+\n");
}
#endif /* CONFIG_PCI */
void toshiba_rbtx4927_restart(char *command)
{
printk(KERN_NOTICE "System Rebooting...\n");
/* enable the s/w reset register */
reg_wr08(RBTX4927_SW_RESET_ENABLE, RBTX4927_SW_RESET_ENABLE_SET);
/* wait for enable to be seen */
while ((reg_rd08(RBTX4927_SW_RESET_ENABLE) &
RBTX4927_SW_RESET_ENABLE_SET) == 0x00);
/* do a s/w reset */
reg_wr08(RBTX4927_SW_RESET_DO, RBTX4927_SW_RESET_DO_SET);
/* do something passive while waiting for reset */
cli();
while (1)
asm_wait();
/* no return */
}
void toshiba_rbtx4927_halt(void)
{
printk(KERN_NOTICE "System Halted\n");
cli();
while (1) {
asm_wait();
}
/* no return */
}
void toshiba_rbtx4927_power_off(void)
{
toshiba_rbtx4927_halt();
/* no return */
}
void __init toshiba_rbtx4927_setup(void)
{
vu32 cp0_config;
printk("CPU is %s\n", toshiba_name);
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
"-\n");
/* f/w leaves this on at startup */
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
":Clearing STO_ERL.\n");
clear_c0_status(ST0_ERL);
/* enable caches -- HCP5 does this, pmon does not */
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
":Enabling TX49_CONF_IC,TX49_CONF_DC.\n");
cp0_config = read_c0_config();
cp0_config = cp0_config & ~(TX49_CONF_IC | TX49_CONF_DC);
write_c0_config(cp0_config);
#ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
{
extern void dump_cp0(char *);
dump_cp0("toshiba_rbtx4927_early_fw_fixup");
}
#endif
/* setup irq stuff */
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
":Setting up tx4927 pic.\n");
TX4927_WR(0xff1ff604, 0x00000400); /* irq trigger */
TX4927_WR(0xff1ff608, 0x00000000); /* irq trigger */
/* setup serial stuff */
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
":Setting up tx4927 sio.\n");
TX4927_WR(0xff1ff314, 0x00000000); /* h/w flow control off */
TX4927_WR(0xff1ff414, 0x00000000); /* h/w flow control off */
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
"+\n");
mips_io_port_base = KSEG1 + TBTX4927_ISA_IO_OFFSET;
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
":mips_io_port_base=0x%08lx\n",
mips_io_port_base);
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
":Resource\n");
ioport_resource.start = 0;
ioport_resource.end = 0xffffffff;
iomem_resource.start = 0;
iomem_resource.end = 0xffffffff;
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
":ResetRoutines\n");
_machine_restart = toshiba_rbtx4927_restart;
_machine_halt = toshiba_rbtx4927_halt;
_machine_power_off = toshiba_rbtx4927_power_off;
#ifdef CONFIG_BLK_DEV_IDEPCI
{
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_SETUP,
":ide_ops=&std_ide_ops(modified)\n");
ide_ops = &std_ide_ops;
}
#else
{
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_SETUP,
":ide_ops=<NOT_CONFIG>\n");
}
#endif
#ifdef CONFIG_FB
{
conswitchp = &dummy_con;
}
#endif
#ifdef CONFIG_PCI
/* PCIC */
/*
* ASSUMPTION: PCIDIVMODE is configured for PCI 33MHz or 66MHz.
* PCIDIVMODE[12:11]'s initial value are given by S9[4:3] (ON:0, OFF:1).
* CPU 166MHz: PCI 66MHz : PCIDIVMODE: 00 (1/2.5)
* CPU 200MHz: PCI 66MHz : PCIDIVMODE: 01 (1/3)
* CPU 166MHz: PCI 33MHz : PCIDIVMODE: 10 (1/5)
* CPU 200MHz: PCI 33MHz : PCIDIVMODE: 11 (1/6)
* i.e. S9[3]: ON (83MHz), OFF (100MHz)
*/
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI1,
"ccfg is %lx, DIV is %x\n",
(unsigned long) tx4927_ccfgptr->
ccfg, TX4927_CCFG_PCIDIVMODE_MASK);
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI1,
"PCI66 mode is %lx, PCI mode is %lx, pci arb is %lx\n",
(unsigned long) tx4927_ccfgptr->
ccfg & TX4927_CCFG_PCI66,
(unsigned long) tx4927_ccfgptr->
ccfg & TX4927_CCFG_PCIMIDE,
(unsigned long) tx4927_ccfgptr->
ccfg & TX4927_CCFG_PCIXARB);
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI1,
"PCIDIVMODE is %lx\n",
(unsigned long) tx4927_ccfgptr->
ccfg & TX4927_CCFG_PCIDIVMODE_MASK);
switch ((unsigned long) tx4927_ccfgptr->
ccfg & TX4927_CCFG_PCIDIVMODE_MASK) {
case TX4927_CCFG_PCIDIVMODE_2_5:
case TX4927_CCFG_PCIDIVMODE_5:
tx4927_cpu_clock = 166000000; /* 166MHz */
break;
default:
tx4927_cpu_clock = 200000000; /* 200MHz */
}
/* CCFG */
/* enable Timeout BusError */
if (tx4927_ccfg_toeon)
tx4927_ccfgptr->ccfg |= TX4927_CCFG_TOE;
/* SDRAMC fixup */
#ifdef CONFIG_TX4927BUG_WORKAROUND
/*
* TX4927-BUG: INF 01-01-18/ BUG 01-01-22
* G-bus timeout error detection is incorrect
*/
if (tx4927_ccfg_toeon)
tx4927_sdramcptr->tr |= 0x02000000; /* RCD:3tck */
#endif
#ifdef TX4927_SUPPORT_PCI_66
tx4927_pci66_setup();
#endif
tx4927_pci_setup();
#endif
{
u32 id = 0;
early_read_config_dword(&mips_pci_channels[0], 0, 0, 0x90,
PCI_VENDOR_ID, &id);
if (id == 0x94601055) {
tx4927_using_backplane = 1;
printk("backplane board IS installed\n");
} else {
printk("backplane board NOT installed\n");
}
}
/* this is only done if backplane board installed, so must wait for pci */
#ifdef CONFIG_PC_KEYB
{
if (tx4927_using_backplane) {
extern struct kbd_ops std_kbd_ops;
kbd_ops = &std_kbd_ops;
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_SETUP,
":kbd_ops=&std_kbd_ops\n");
} else {
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_SETUP,
":kbd_ops=<NO_BACKPLANE>\n");
}
}
#else
{
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_SETUP,
":kbd_ops=<NOT_CONFIG>\n");
}
#endif
/* this is on ISA bus behind PCI bus, so need PCI up first */
#ifdef CONFIG_TOSHIBA_FPCIB0
{
if (tx4927_using_backplane) {
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_SETUP,
":fpcibo=yes\n");
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_SETUP,
":smsc_fdc37m81x_init()\n");
smsc_fdc37m81x_init(0x3f0);
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_SETUP,
":smsc_fdc37m81x_config_beg()\n");
smsc_fdc37m81x_config_beg();
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_SETUP,
":smsc_fdc37m81x_config_set(KBD)\n");
smsc_fdc37m81x_config_set(SMSC_FDC37M81X_DNUM,
SMSC_FDC37M81X_KBD);
smsc_fdc37m81x_config_set(SMSC_FDC37M81X_INT, 1);
smsc_fdc37m81x_config_set(SMSC_FDC37M81X_INT2, 12);
smsc_fdc37m81x_config_set(SMSC_FDC37M81X_ACTIVE,
1);
smsc_fdc37m81x_config_end();
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_SETUP,
":smsc_fdc37m81x_config_end()\n");
} else {
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_SETUP,
":fpcibo=not_found\n");
}
}
#else
{
TOSHIBA_RBTX4927_SETUP_DPRINTK
(TOSHIBA_RBTX4927_SETUP_SETUP, ":fpcibo=no\n");
}
#endif
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
"+\n");
}
void __init
toshiba_rbtx4927_time_init(void)
{
u32 c1;
u32 c2;
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT, "-\n");
#ifdef CONFIG_RTC_DS1742
rtc_get_time = rtc_ds1742_get_time;
rtc_set_time = rtc_ds1742_set_time;
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
":rtc_ds1742_init()-\n");
rtc_ds1742_init(0xbc010000);
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
":rtc_ds1742_init()+\n");
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
":Calibrate mips_counter_frequency-\n");
rtc_ds1742_wait();
/* get the count */
c1 = read_c0_count();
/* wait for the seconds to change again */
rtc_ds1742_wait();
/* get the count again */
c2 = read_c0_count();
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
":Calibrate mips_counter_frequency+\n");
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
":c1=%12u\n", c1);
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
":c2=%12u\n", c2);
/* this diff is as close as we are going to get to counter ticks per sec */
mips_counter_frequency = abs(c2 - c1);
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
":f1=%12u\n", mips_counter_frequency);
/* round to 1/10th of a MHz */
mips_counter_frequency /= (100 * 1000);
mips_counter_frequency *= (100 * 1000);
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
":f2=%12u\n", mips_counter_frequency);
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_INFO,
":mips_counter_frequency=%uHz (%uMHz)\n",
mips_counter_frequency,
mips_counter_frequency / 1000000);
#else
mips_counter_frequency = 100000000;
#endif
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT, "+\n");
}
void __init toshiba_rbtx4927_timer_setup(struct irqaction *irq)
{
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIMER_SETUP,
"-\n");
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIMER_SETUP,
"+\n");
}
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