From ebae41a5a0583fb732c41445df4ac2c41016df74 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Sun, 27 Apr 2008 15:38:29 +0200 Subject: ide: add "vlb|pci_clock=" parameter * Add "vlb_clock=" parameter for specifying VLB clock frequency (in MHz). * Add "pci_clock=" parameter for specifying PCI bus clock frequency (in MHz). While at it: * qd65xx.c: rename {active,recovery}_cycle variables to {act,rec}_cyc. Cc: Alan Cox Acked-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/legacy/ali14xx.c | 2 +- drivers/ide/legacy/ht6560b.c | 4 ++-- drivers/ide/legacy/qd65xx.c | 24 ++++++++++++++---------- 3 files changed, 17 insertions(+), 13 deletions(-) (limited to 'drivers/ide/legacy') diff --git a/drivers/ide/legacy/ali14xx.c b/drivers/ide/legacy/ali14xx.c index c6898639b799..d2756c9962e3 100644 --- a/drivers/ide/legacy/ali14xx.c +++ b/drivers/ide/legacy/ali14xx.c @@ -116,7 +116,7 @@ static void ali14xx_set_pio_mode(ide_drive_t *drive, const u8 pio) int time1, time2; u8 param1, param2, param3, param4; unsigned long flags; - int bus_speed = system_bus_clock(); + int bus_speed = ide_vlb_clk ? ide_vlb_clk : system_bus_clock(); /* calculate timing, according to PIO mode */ time1 = ide_pio_cycle_time(drive, pio); diff --git a/drivers/ide/legacy/ht6560b.c b/drivers/ide/legacy/ht6560b.c index 8b2a5b484d9f..d626c760bce8 100644 --- a/drivers/ide/legacy/ht6560b.c +++ b/drivers/ide/legacy/ht6560b.c @@ -212,8 +212,8 @@ static u8 ht_pio2timings(ide_drive_t *drive, const u8 pio) { int active_time, recovery_time; int active_cycles, recovery_cycles; - int bus_speed = system_bus_clock(); - + int bus_speed = ide_vlb_clk ? ide_vlb_clk : system_bus_clock(); + if (pio) { unsigned int cycle_time; diff --git a/drivers/ide/legacy/qd65xx.c b/drivers/ide/legacy/qd65xx.c index 61d5889834e4..5621963f755f 100644 --- a/drivers/ide/legacy/qd65xx.c +++ b/drivers/ide/legacy/qd65xx.c @@ -114,17 +114,18 @@ static void qd65xx_select(ide_drive_t *drive) static u8 qd6500_compute_timing (ide_hwif_t *hwif, int active_time, int recovery_time) { - u8 active_cycle,recovery_cycle; + int clk = ide_vlb_clk ? ide_vlb_clk : system_bus_clock(); + u8 act_cyc, rec_cyc; - if (system_bus_clock()<=33) { - active_cycle = 9 - IDE_IN(active_time * system_bus_clock() / 1000 + 1, 2, 9); - recovery_cycle = 15 - IDE_IN(recovery_time * system_bus_clock() / 1000 + 1, 0, 15); + if (clk <= 33) { + act_cyc = 9 - IDE_IN(active_time * clk / 1000 + 1, 2, 9); + rec_cyc = 15 - IDE_IN(recovery_time * clk / 1000 + 1, 0, 15); } else { - active_cycle = 8 - IDE_IN(active_time * system_bus_clock() / 1000 + 1, 1, 8); - recovery_cycle = 18 - IDE_IN(recovery_time * system_bus_clock() / 1000 + 1, 3, 18); + act_cyc = 8 - IDE_IN(active_time * clk / 1000 + 1, 1, 8); + rec_cyc = 18 - IDE_IN(recovery_time * clk / 1000 + 1, 3, 18); } - return((recovery_cycle<<4) | 0x08 | active_cycle); + return (rec_cyc << 4) | 0x08 | act_cyc; } /* @@ -135,10 +136,13 @@ static u8 qd6500_compute_timing (ide_hwif_t *hwif, int active_time, int recovery static u8 qd6580_compute_timing (int active_time, int recovery_time) { - u8 active_cycle = 17 - IDE_IN(active_time * system_bus_clock() / 1000 + 1, 2, 17); - u8 recovery_cycle = 15 - IDE_IN(recovery_time * system_bus_clock() / 1000 + 1, 2, 15); + int clk = ide_vlb_clk ? ide_vlb_clk : system_bus_clock(); + u8 act_cyc, rec_cyc; - return((recovery_cycle<<4) | active_cycle); + act_cyc = 17 - IDE_IN(active_time * clk / 1000 + 1, 2, 17); + rec_cyc = 15 - IDE_IN(recovery_time * clk / 1000 + 1, 2, 15); + + return (rec_cyc << 4) | act_cyc; } /* -- cgit v1.2.3-55-g7522