diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/txx9/rbtx4927/setup.c | 78 |
1 files changed, 45 insertions, 33 deletions
diff --git a/arch/mips/txx9/rbtx4927/setup.c b/arch/mips/txx9/rbtx4927/setup.c index b4c4178607c..adc91c0bbb9 100644 --- a/arch/mips/txx9/rbtx4927/setup.c +++ b/arch/mips/txx9/rbtx4927/setup.c @@ -301,6 +301,18 @@ static void __init rbtx4927_mem_setup(void) #endif } +static void __init rbtx49x7_common_time_init(void) +{ + /* change default value to udelay/mdelay take reasonable time */ + loops_per_jiffy = txx9_cpu_clock / HZ / 2; + + mips_hpt_frequency = txx9_cpu_clock / 2; + if (____raw_readq(&tx4927_ccfgptr->ccfg) & TX4927_CCFG_TINTDIS) + txx9_clockevent_init(TX4927_TMR_REG(0) & 0xfffffffffULL, + TXX9_IRQ_BASE + 17, + 50000000); +} + static void __init rbtx4927_time_init(void) { /* @@ -313,6 +325,24 @@ static void __init rbtx4927_time_init(void) * CPU 166MHz: PCI 33MHz : PCIDIVMODE: 10 (1/5) * CPU 200MHz: PCI 33MHz : PCIDIVMODE: 11 (1/6) * i.e. S9[3]: ON (83MHz), OFF (100MHz) + */ + switch ((unsigned long)__raw_readq(&tx4927_ccfgptr->ccfg) & + TX4927_CCFG_PCIDIVMODE_MASK) { + case TX4927_CCFG_PCIDIVMODE_2_5: + case TX4927_CCFG_PCIDIVMODE_5: + txx9_cpu_clock = 166666666; /* 166MHz */ + break; + default: + txx9_cpu_clock = 200000000; /* 200MHz */ + } + + rbtx49x7_common_time_init(); +} + +static void __init rbtx4937_time_init(void) +{ + /* + * ASSUMPTION: PCIDIVMODE is configured for PCI 33MHz or 66MHz. * * For TX4937: * PCIDIVMODE[12:11]'s initial value is given by S1[5:4] (ON:0, OFF:1) @@ -324,39 +354,21 @@ static void __init rbtx4927_time_init(void) * CPU 333MHz: PCI 33MHz : PCIDIVMODE: 100 (1/10) * CPU 333MHz: PCI 66MHz : PCIDIVMODE: 101 (1/5) */ - if (mips_machtype == MACH_TOSHIBA_RBTX4937) - switch ((unsigned long)__raw_readq(&tx4938_ccfgptr->ccfg) & - TX4938_CCFG_PCIDIVMODE_MASK) { - case TX4938_CCFG_PCIDIVMODE_8: - case TX4938_CCFG_PCIDIVMODE_4: - txx9_cpu_clock = 266666666; /* 266MHz */ - break; - case TX4938_CCFG_PCIDIVMODE_9: - case TX4938_CCFG_PCIDIVMODE_4_5: - txx9_cpu_clock = 300000000; /* 300MHz */ - break; - default: - txx9_cpu_clock = 333333333; /* 333MHz */ - } - else - switch ((unsigned long)__raw_readq(&tx4927_ccfgptr->ccfg) & - TX4927_CCFG_PCIDIVMODE_MASK) { - case TX4927_CCFG_PCIDIVMODE_2_5: - case TX4927_CCFG_PCIDIVMODE_5: - txx9_cpu_clock = 166666666; /* 166MHz */ - break; - default: - txx9_cpu_clock = 200000000; /* 200MHz */ - } - - /* change default value to udelay/mdelay take reasonable time */ - loops_per_jiffy = txx9_cpu_clock / HZ / 2; + switch ((unsigned long)__raw_readq(&tx4938_ccfgptr->ccfg) & + TX4938_CCFG_PCIDIVMODE_MASK) { + case TX4938_CCFG_PCIDIVMODE_8: + case TX4938_CCFG_PCIDIVMODE_4: + txx9_cpu_clock = 266666666; /* 266MHz */ + break; + case TX4938_CCFG_PCIDIVMODE_9: + case TX4938_CCFG_PCIDIVMODE_4_5: + txx9_cpu_clock = 300000000; /* 300MHz */ + break; + default: + txx9_cpu_clock = 333333333; /* 333MHz */ + } - mips_hpt_frequency = txx9_cpu_clock / 2; - if (____raw_readq(&tx4927_ccfgptr->ccfg) & TX4927_CCFG_TINTDIS) - txx9_clockevent_init(TX4927_TMR_REG(0) & 0xfffffffffULL, - TXX9_IRQ_BASE + 17, - 50000000); + rbtx49x7_common_time_init(); } static int __init toshiba_rbtx4927_rtc_init(void) @@ -434,7 +446,7 @@ struct txx9_board_vec rbtx4937_vec __initdata = { .prom_init = rbtx4927_prom_init, .mem_setup = rbtx4927_mem_setup, .irq_setup = rbtx4927_irq_setup, - .time_init = rbtx4927_time_init, + .time_init = rbtx4937_time_init, .device_init = rbtx4927_device_init, .arch_init = rbtx4937_arch_init, #ifdef CONFIG_PCI |