[MIPS] separate rbtx4927_time_init() and rbtx4937_time_init()

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 45 insertions, 33 deletions

diff --git a/arch/mips/txx9/rbtx4927/setup.c b/arch/mips/txx9/rbtx4927/setup.c
index b4c4178607c4..adc91c0bbb95 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