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![Andy Shevchenko](/assets/img/avatar_default.png)
The new helper returns index of the mathing string in an array. We would use it here. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1543 lines
42 KiB
C
1543 lines
42 KiB
C
/*
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* Copyright (C) 1999-2003 Andre Hedrick <andre@linux-ide.org>
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* Portions Copyright (C) 2001 Sun Microsystems, Inc.
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* Portions Copyright (C) 2003 Red Hat Inc
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* Portions Copyright (C) 2007 Bartlomiej Zolnierkiewicz
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* Portions Copyright (C) 2005-2009 MontaVista Software, Inc.
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*
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* Thanks to HighPoint Technologies for their assistance, and hardware.
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* Special Thanks to Jon Burchmore in SanDiego for the deep pockets, his
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* donation of an ABit BP6 mainboard, processor, and memory acellerated
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* development and support.
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*
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*
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* HighPoint has its own drivers (open source except for the RAID part)
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* available from http://www.highpoint-tech.com/USA_new/service_support.htm
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* This may be useful to anyone wanting to work on this driver, however do not
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* trust them too much since the code tends to become less and less meaningful
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* as the time passes... :-/
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*
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* Note that final HPT370 support was done by force extraction of GPL.
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*
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* - add function for getting/setting power status of drive
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* - the HPT370's state machine can get confused. reset it before each dma
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* xfer to prevent that from happening.
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* - reset state engine whenever we get an error.
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* - check for busmaster state at end of dma.
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* - use new highpoint timings.
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* - detect bus speed using highpoint register.
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* - use pll if we don't have a clock table. added a 66MHz table that's
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* just 2x the 33MHz table.
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* - removed turnaround. NOTE: we never want to switch between pll and
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* pci clocks as the chip can glitch in those cases. the highpoint
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* approved workaround slows everything down too much to be useful. in
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* addition, we would have to serialize access to each chip.
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* Adrian Sun <a.sun@sun.com>
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*
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* add drive timings for 66MHz PCI bus,
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* fix ATA Cable signal detection, fix incorrect /proc info
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* add /proc display for per-drive PIO/DMA/UDMA mode and
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* per-channel ATA-33/66 Cable detect.
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* Duncan Laurie <void@sun.com>
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*
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* fixup /proc output for multiple controllers
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* Tim Hockin <thockin@sun.com>
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*
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* On hpt366:
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* Reset the hpt366 on error, reset on dma
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* Fix disabling Fast Interrupt hpt366.
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* Mike Waychison <crlf@sun.com>
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*
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* Added support for 372N clocking and clock switching. The 372N needs
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* different clocks on read/write. This requires overloading rw_disk and
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* other deeply crazy things. Thanks to <http://www.hoerstreich.de> for
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* keeping me sane.
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* Alan Cox <alan@lxorguk.ukuu.org.uk>
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*
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* - fix the clock turnaround code: it was writing to the wrong ports when
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* called for the secondary channel, caching the current clock mode per-
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* channel caused the cached register value to get out of sync with the
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* actual one, the channels weren't serialized, the turnaround shouldn't
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* be done on 66 MHz PCI bus
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* - disable UltraATA/100 for HPT370 by default as the 33 MHz clock being used
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* does not allow for this speed anyway
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* - avoid touching disabled channels (e.g. HPT371/N are single channel chips,
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* their primary channel is kind of virtual, it isn't tied to any pins)
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* - fix/remove bad/unused timing tables and use one set of tables for the whole
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* HPT37x chip family; save space by introducing the separate transfer mode
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* table in which the mode lookup is done
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* - use f_CNT value saved by the HighPoint BIOS as reading it directly gives
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* the wrong PCI frequency since DPLL has already been calibrated by BIOS;
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* read it only from the function 0 of HPT374 chips
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* - fix the hotswap code: it caused RESET- to glitch when tristating the bus,
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* and for HPT36x the obsolete HDIO_TRISTATE_HWIF handler was called instead
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* - pass to init_chipset() handlers a copy of the IDE PCI device structure as
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* they tamper with its fields
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* - pass to the init_setup handlers a copy of the ide_pci_device_t structure
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* since they may tamper with its fields
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* - prefix the driver startup messages with the real chip name
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* - claim the extra 240 bytes of I/O space for all chips
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* - optimize the UltraDMA filtering and the drive list lookup code
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* - use pci_get_slot() to get to the function 1 of HPT36x/374
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* - cache offset of the channel's misc. control registers (MCRs) being used
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* throughout the driver
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* - only touch the relevant MCR when detecting the cable type on HPT374's
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* function 1
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* - rename all the register related variables consistently
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* - move all the interrupt twiddling code from the speedproc handlers into
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* init_hwif_hpt366(), also grouping all the DMA related code together there
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* - merge HPT36x/HPT37x speedproc handlers, fix PIO timing register mask and
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* separate the UltraDMA and MWDMA masks there to avoid changing PIO timings
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* when setting an UltraDMA mode
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* - fix hpt3xx_tune_drive() to set the PIO mode requested, not always select
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* the best possible one
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* - clean up DMA timeout handling for HPT370
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* - switch to using the enumeration type to differ between the numerous chip
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* variants, matching PCI device/revision ID with the chip type early, at the
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* init_setup stage
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* - extend the hpt_info structure to hold the DPLL and PCI clock frequencies,
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* stop duplicating it for each channel by storing the pointer in the pci_dev
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* structure: first, at the init_setup stage, point it to a static "template"
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* with only the chip type and its specific base DPLL frequency, the highest
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* UltraDMA mode, and the chip settings table pointer filled, then, at the
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* init_chipset stage, allocate per-chip instance and fill it with the rest
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* of the necessary information
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* - get rid of the constant thresholds in the HPT37x PCI clock detection code,
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* switch to calculating PCI clock frequency based on the chip's base DPLL
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* frequency
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* - switch to using the DPLL clock and enable UltraATA/133 mode by default on
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* anything newer than HPT370/A (except HPT374 that is not capable of this
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* mode according to the manual)
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* - fold PCI clock detection and DPLL setup code into init_chipset_hpt366(),
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* also fixing the interchanged 25/40 MHz PCI clock cases for HPT36x chips;
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* unify HPT36x/37x timing setup code and the speedproc handlers by joining
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* the register setting lists into the table indexed by the clock selected
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* - set the correct hwif->ultra_mask for each individual chip
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* - add Ultra and MW DMA mode filtering for the HPT37[24] based SATA cards
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* - stop resetting HPT370's state machine before each DMA transfer as that has
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* caused more harm than good
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* Sergei Shtylyov, <sshtylyov@ru.mvista.com> or <source@mvista.com>
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*/
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#include <linux/types.h>
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/delay.h>
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#include <linux/blkdev.h>
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#include <linux/interrupt.h>
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#include <linux/pci.h>
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#include <linux/init.h>
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#include <linux/ide.h>
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#include <linux/slab.h>
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#include <asm/uaccess.h>
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#include <asm/io.h>
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#define DRV_NAME "hpt366"
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/* various tuning parameters */
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#undef HPT_RESET_STATE_ENGINE
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#undef HPT_DELAY_INTERRUPT
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static const char *bad_ata100_5[] = {
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"IBM-DTLA-307075",
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"IBM-DTLA-307060",
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"IBM-DTLA-307045",
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"IBM-DTLA-307030",
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"IBM-DTLA-307020",
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"IBM-DTLA-307015",
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"IBM-DTLA-305040",
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"IBM-DTLA-305030",
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"IBM-DTLA-305020",
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"IC35L010AVER07-0",
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"IC35L020AVER07-0",
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"IC35L030AVER07-0",
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"IC35L040AVER07-0",
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"IC35L060AVER07-0",
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"WDC AC310200R",
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NULL
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};
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static const char *bad_ata66_4[] = {
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"IBM-DTLA-307075",
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"IBM-DTLA-307060",
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"IBM-DTLA-307045",
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"IBM-DTLA-307030",
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"IBM-DTLA-307020",
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"IBM-DTLA-307015",
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"IBM-DTLA-305040",
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"IBM-DTLA-305030",
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"IBM-DTLA-305020",
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"IC35L010AVER07-0",
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"IC35L020AVER07-0",
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"IC35L030AVER07-0",
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"IC35L040AVER07-0",
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"IC35L060AVER07-0",
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"WDC AC310200R",
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"MAXTOR STM3320620A",
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NULL
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};
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static const char *bad_ata66_3[] = {
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"WDC AC310200R",
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NULL
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};
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static const char *bad_ata33[] = {
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"Maxtor 92720U8", "Maxtor 92040U6", "Maxtor 91360U4", "Maxtor 91020U3", "Maxtor 90845U3", "Maxtor 90650U2",
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"Maxtor 91360D8", "Maxtor 91190D7", "Maxtor 91020D6", "Maxtor 90845D5", "Maxtor 90680D4", "Maxtor 90510D3", "Maxtor 90340D2",
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"Maxtor 91152D8", "Maxtor 91008D7", "Maxtor 90845D6", "Maxtor 90840D6", "Maxtor 90720D5", "Maxtor 90648D5", "Maxtor 90576D4",
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"Maxtor 90510D4",
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"Maxtor 90432D3", "Maxtor 90288D2", "Maxtor 90256D2",
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"Maxtor 91000D8", "Maxtor 90910D8", "Maxtor 90875D7", "Maxtor 90840D7", "Maxtor 90750D6", "Maxtor 90625D5", "Maxtor 90500D4",
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"Maxtor 91728D8", "Maxtor 91512D7", "Maxtor 91303D6", "Maxtor 91080D5", "Maxtor 90845D4", "Maxtor 90680D4", "Maxtor 90648D3", "Maxtor 90432D2",
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NULL
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};
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static u8 xfer_speeds[] = {
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XFER_UDMA_6,
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XFER_UDMA_5,
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XFER_UDMA_4,
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XFER_UDMA_3,
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XFER_UDMA_2,
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XFER_UDMA_1,
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XFER_UDMA_0,
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XFER_MW_DMA_2,
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XFER_MW_DMA_1,
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XFER_MW_DMA_0,
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XFER_PIO_4,
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XFER_PIO_3,
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XFER_PIO_2,
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XFER_PIO_1,
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XFER_PIO_0
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};
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/* Key for bus clock timings
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* 36x 37x
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* bits bits
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* 0:3 0:3 data_high_time. Inactive time of DIOW_/DIOR_ for PIO and MW DMA.
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* cycles = value + 1
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* 4:7 4:8 data_low_time. Active time of DIOW_/DIOR_ for PIO and MW DMA.
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* cycles = value + 1
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* 8:11 9:12 cmd_high_time. Inactive time of DIOW_/DIOR_ during task file
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* register access.
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* 12:15 13:17 cmd_low_time. Active time of DIOW_/DIOR_ during task file
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* register access.
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* 16:18 18:20 udma_cycle_time. Clock cycles for UDMA xfer.
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* - 21 CLK frequency: 0=ATA clock, 1=dual ATA clock.
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* 19:21 22:24 pre_high_time. Time to initialize the 1st cycle for PIO and
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* MW DMA xfer.
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* 22:24 25:27 cmd_pre_high_time. Time to initialize the 1st PIO cycle for
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* task file register access.
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* 28 28 UDMA enable.
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* 29 29 DMA enable.
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* 30 30 PIO MST enable. If set, the chip is in bus master mode during
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* PIO xfer.
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* 31 31 FIFO enable.
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*/
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static u32 forty_base_hpt36x[] = {
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/* XFER_UDMA_6 */ 0x900fd943,
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/* XFER_UDMA_5 */ 0x900fd943,
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/* XFER_UDMA_4 */ 0x900fd943,
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/* XFER_UDMA_3 */ 0x900ad943,
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/* XFER_UDMA_2 */ 0x900bd943,
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/* XFER_UDMA_1 */ 0x9008d943,
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/* XFER_UDMA_0 */ 0x9008d943,
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/* XFER_MW_DMA_2 */ 0xa008d943,
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/* XFER_MW_DMA_1 */ 0xa010d955,
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/* XFER_MW_DMA_0 */ 0xa010d9fc,
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/* XFER_PIO_4 */ 0xc008d963,
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/* XFER_PIO_3 */ 0xc010d974,
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/* XFER_PIO_2 */ 0xc010d997,
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/* XFER_PIO_1 */ 0xc010d9c7,
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/* XFER_PIO_0 */ 0xc018d9d9
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};
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static u32 thirty_three_base_hpt36x[] = {
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/* XFER_UDMA_6 */ 0x90c9a731,
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/* XFER_UDMA_5 */ 0x90c9a731,
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/* XFER_UDMA_4 */ 0x90c9a731,
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/* XFER_UDMA_3 */ 0x90cfa731,
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/* XFER_UDMA_2 */ 0x90caa731,
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/* XFER_UDMA_1 */ 0x90cba731,
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/* XFER_UDMA_0 */ 0x90c8a731,
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/* XFER_MW_DMA_2 */ 0xa0c8a731,
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/* XFER_MW_DMA_1 */ 0xa0c8a732, /* 0xa0c8a733 */
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/* XFER_MW_DMA_0 */ 0xa0c8a797,
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/* XFER_PIO_4 */ 0xc0c8a731,
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/* XFER_PIO_3 */ 0xc0c8a742,
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/* XFER_PIO_2 */ 0xc0d0a753,
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/* XFER_PIO_1 */ 0xc0d0a7a3, /* 0xc0d0a793 */
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/* XFER_PIO_0 */ 0xc0d0a7aa /* 0xc0d0a7a7 */
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};
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static u32 twenty_five_base_hpt36x[] = {
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/* XFER_UDMA_6 */ 0x90c98521,
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/* XFER_UDMA_5 */ 0x90c98521,
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/* XFER_UDMA_4 */ 0x90c98521,
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/* XFER_UDMA_3 */ 0x90cf8521,
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/* XFER_UDMA_2 */ 0x90cf8521,
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/* XFER_UDMA_1 */ 0x90cb8521,
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/* XFER_UDMA_0 */ 0x90cb8521,
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/* XFER_MW_DMA_2 */ 0xa0ca8521,
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/* XFER_MW_DMA_1 */ 0xa0ca8532,
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/* XFER_MW_DMA_0 */ 0xa0ca8575,
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/* XFER_PIO_4 */ 0xc0ca8521,
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/* XFER_PIO_3 */ 0xc0ca8532,
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/* XFER_PIO_2 */ 0xc0ca8542,
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/* XFER_PIO_1 */ 0xc0d08572,
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/* XFER_PIO_0 */ 0xc0d08585
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};
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/*
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* The following are the new timing tables with PIO mode data/taskfile transfer
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* overclocking fixed...
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*/
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/* This table is taken from the HPT370 data manual rev. 1.02 */
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static u32 thirty_three_base_hpt37x[] = {
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/* XFER_UDMA_6 */ 0x16455031, /* 0x16655031 ?? */
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/* XFER_UDMA_5 */ 0x16455031,
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/* XFER_UDMA_4 */ 0x16455031,
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/* XFER_UDMA_3 */ 0x166d5031,
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/* XFER_UDMA_2 */ 0x16495031,
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/* XFER_UDMA_1 */ 0x164d5033,
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/* XFER_UDMA_0 */ 0x16515097,
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/* XFER_MW_DMA_2 */ 0x26515031,
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/* XFER_MW_DMA_1 */ 0x26515033,
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/* XFER_MW_DMA_0 */ 0x26515097,
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/* XFER_PIO_4 */ 0x06515021,
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/* XFER_PIO_3 */ 0x06515022,
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/* XFER_PIO_2 */ 0x06515033,
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/* XFER_PIO_1 */ 0x06915065,
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/* XFER_PIO_0 */ 0x06d1508a
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};
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static u32 fifty_base_hpt37x[] = {
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/* XFER_UDMA_6 */ 0x1a861842,
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/* XFER_UDMA_5 */ 0x1a861842,
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/* XFER_UDMA_4 */ 0x1aae1842,
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/* XFER_UDMA_3 */ 0x1a8e1842,
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/* XFER_UDMA_2 */ 0x1a0e1842,
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/* XFER_UDMA_1 */ 0x1a161854,
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/* XFER_UDMA_0 */ 0x1a1a18ea,
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/* XFER_MW_DMA_2 */ 0x2a821842,
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/* XFER_MW_DMA_1 */ 0x2a821854,
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/* XFER_MW_DMA_0 */ 0x2a8218ea,
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/* XFER_PIO_4 */ 0x0a821842,
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/* XFER_PIO_3 */ 0x0a821843,
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/* XFER_PIO_2 */ 0x0a821855,
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/* XFER_PIO_1 */ 0x0ac218a8,
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/* XFER_PIO_0 */ 0x0b02190c
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};
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static u32 sixty_six_base_hpt37x[] = {
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/* XFER_UDMA_6 */ 0x1c86fe62,
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/* XFER_UDMA_5 */ 0x1caefe62, /* 0x1c8afe62 */
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/* XFER_UDMA_4 */ 0x1c8afe62,
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/* XFER_UDMA_3 */ 0x1c8efe62,
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/* XFER_UDMA_2 */ 0x1c92fe62,
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/* XFER_UDMA_1 */ 0x1c9afe62,
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/* XFER_UDMA_0 */ 0x1c82fe62,
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/* XFER_MW_DMA_2 */ 0x2c82fe62,
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/* XFER_MW_DMA_1 */ 0x2c82fe66,
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/* XFER_MW_DMA_0 */ 0x2c82ff2e,
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/* XFER_PIO_4 */ 0x0c82fe62,
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/* XFER_PIO_3 */ 0x0c82fe84,
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/* XFER_PIO_2 */ 0x0c82fea6,
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/* XFER_PIO_1 */ 0x0d02ff26,
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/* XFER_PIO_0 */ 0x0d42ff7f
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};
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#define HPT371_ALLOW_ATA133_6 1
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#define HPT302_ALLOW_ATA133_6 1
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#define HPT372_ALLOW_ATA133_6 1
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#define HPT370_ALLOW_ATA100_5 0
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#define HPT366_ALLOW_ATA66_4 1
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#define HPT366_ALLOW_ATA66_3 1
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/* Supported ATA clock frequencies */
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enum ata_clock {
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ATA_CLOCK_25MHZ,
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ATA_CLOCK_33MHZ,
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ATA_CLOCK_40MHZ,
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ATA_CLOCK_50MHZ,
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ATA_CLOCK_66MHZ,
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NUM_ATA_CLOCKS
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};
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struct hpt_timings {
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u32 pio_mask;
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u32 dma_mask;
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u32 ultra_mask;
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u32 *clock_table[NUM_ATA_CLOCKS];
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};
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/*
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* Hold all the HighPoint chip information in one place.
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*/
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struct hpt_info {
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char *chip_name; /* Chip name */
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u8 chip_type; /* Chip type */
|
|
u8 udma_mask; /* Allowed UltraDMA modes mask. */
|
|
u8 dpll_clk; /* DPLL clock in MHz */
|
|
u8 pci_clk; /* PCI clock in MHz */
|
|
struct hpt_timings *timings; /* Chipset timing data */
|
|
u8 clock; /* ATA clock selected */
|
|
};
|
|
|
|
/* Supported HighPoint chips */
|
|
enum {
|
|
HPT36x,
|
|
HPT370,
|
|
HPT370A,
|
|
HPT374,
|
|
HPT372,
|
|
HPT372A,
|
|
HPT302,
|
|
HPT371,
|
|
HPT372N,
|
|
HPT302N,
|
|
HPT371N
|
|
};
|
|
|
|
static struct hpt_timings hpt36x_timings = {
|
|
.pio_mask = 0xc1f8ffff,
|
|
.dma_mask = 0x303800ff,
|
|
.ultra_mask = 0x30070000,
|
|
.clock_table = {
|
|
[ATA_CLOCK_25MHZ] = twenty_five_base_hpt36x,
|
|
[ATA_CLOCK_33MHZ] = thirty_three_base_hpt36x,
|
|
[ATA_CLOCK_40MHZ] = forty_base_hpt36x,
|
|
[ATA_CLOCK_50MHZ] = NULL,
|
|
[ATA_CLOCK_66MHZ] = NULL
|
|
}
|
|
};
|
|
|
|
static struct hpt_timings hpt37x_timings = {
|
|
.pio_mask = 0xcfc3ffff,
|
|
.dma_mask = 0x31c001ff,
|
|
.ultra_mask = 0x303c0000,
|
|
.clock_table = {
|
|
[ATA_CLOCK_25MHZ] = NULL,
|
|
[ATA_CLOCK_33MHZ] = thirty_three_base_hpt37x,
|
|
[ATA_CLOCK_40MHZ] = NULL,
|
|
[ATA_CLOCK_50MHZ] = fifty_base_hpt37x,
|
|
[ATA_CLOCK_66MHZ] = sixty_six_base_hpt37x
|
|
}
|
|
};
|
|
|
|
static const struct hpt_info hpt36x = {
|
|
.chip_name = "HPT36x",
|
|
.chip_type = HPT36x,
|
|
.udma_mask = HPT366_ALLOW_ATA66_3 ? (HPT366_ALLOW_ATA66_4 ? ATA_UDMA4 : ATA_UDMA3) : ATA_UDMA2,
|
|
.dpll_clk = 0, /* no DPLL */
|
|
.timings = &hpt36x_timings
|
|
};
|
|
|
|
static const struct hpt_info hpt370 = {
|
|
.chip_name = "HPT370",
|
|
.chip_type = HPT370,
|
|
.udma_mask = HPT370_ALLOW_ATA100_5 ? ATA_UDMA5 : ATA_UDMA4,
|
|
.dpll_clk = 48,
|
|
.timings = &hpt37x_timings
|
|
};
|
|
|
|
static const struct hpt_info hpt370a = {
|
|
.chip_name = "HPT370A",
|
|
.chip_type = HPT370A,
|
|
.udma_mask = HPT370_ALLOW_ATA100_5 ? ATA_UDMA5 : ATA_UDMA4,
|
|
.dpll_clk = 48,
|
|
.timings = &hpt37x_timings
|
|
};
|
|
|
|
static const struct hpt_info hpt374 = {
|
|
.chip_name = "HPT374",
|
|
.chip_type = HPT374,
|
|
.udma_mask = ATA_UDMA5,
|
|
.dpll_clk = 48,
|
|
.timings = &hpt37x_timings
|
|
};
|
|
|
|
static const struct hpt_info hpt372 = {
|
|
.chip_name = "HPT372",
|
|
.chip_type = HPT372,
|
|
.udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
|
|
.dpll_clk = 55,
|
|
.timings = &hpt37x_timings
|
|
};
|
|
|
|
static const struct hpt_info hpt372a = {
|
|
.chip_name = "HPT372A",
|
|
.chip_type = HPT372A,
|
|
.udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
|
|
.dpll_clk = 66,
|
|
.timings = &hpt37x_timings
|
|
};
|
|
|
|
static const struct hpt_info hpt302 = {
|
|
.chip_name = "HPT302",
|
|
.chip_type = HPT302,
|
|
.udma_mask = HPT302_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
|
|
.dpll_clk = 66,
|
|
.timings = &hpt37x_timings
|
|
};
|
|
|
|
static const struct hpt_info hpt371 = {
|
|
.chip_name = "HPT371",
|
|
.chip_type = HPT371,
|
|
.udma_mask = HPT371_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
|
|
.dpll_clk = 66,
|
|
.timings = &hpt37x_timings
|
|
};
|
|
|
|
static const struct hpt_info hpt372n = {
|
|
.chip_name = "HPT372N",
|
|
.chip_type = HPT372N,
|
|
.udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
|
|
.dpll_clk = 77,
|
|
.timings = &hpt37x_timings
|
|
};
|
|
|
|
static const struct hpt_info hpt302n = {
|
|
.chip_name = "HPT302N",
|
|
.chip_type = HPT302N,
|
|
.udma_mask = HPT302_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
|
|
.dpll_clk = 77,
|
|
.timings = &hpt37x_timings
|
|
};
|
|
|
|
static const struct hpt_info hpt371n = {
|
|
.chip_name = "HPT371N",
|
|
.chip_type = HPT371N,
|
|
.udma_mask = HPT371_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
|
|
.dpll_clk = 77,
|
|
.timings = &hpt37x_timings
|
|
};
|
|
|
|
static bool check_in_drive_list(ide_drive_t *drive, const char **list)
|
|
{
|
|
return match_string(list, -1, (char *)&drive->id[ATA_ID_PROD]) >= 0;
|
|
}
|
|
|
|
static struct hpt_info *hpt3xx_get_info(struct device *dev)
|
|
{
|
|
struct ide_host *host = dev_get_drvdata(dev);
|
|
struct hpt_info *info = (struct hpt_info *)host->host_priv;
|
|
|
|
return dev == host->dev[1] ? info + 1 : info;
|
|
}
|
|
|
|
/*
|
|
* The Marvell bridge chips used on the HighPoint SATA cards do not seem
|
|
* to support the UltraDMA modes 1, 2, and 3 as well as any MWDMA modes...
|
|
*/
|
|
|
|
static u8 hpt3xx_udma_filter(ide_drive_t *drive)
|
|
{
|
|
ide_hwif_t *hwif = drive->hwif;
|
|
struct hpt_info *info = hpt3xx_get_info(hwif->dev);
|
|
u8 mask = hwif->ultra_mask;
|
|
|
|
switch (info->chip_type) {
|
|
case HPT36x:
|
|
if (!HPT366_ALLOW_ATA66_4 ||
|
|
check_in_drive_list(drive, bad_ata66_4))
|
|
mask = ATA_UDMA3;
|
|
|
|
if (!HPT366_ALLOW_ATA66_3 ||
|
|
check_in_drive_list(drive, bad_ata66_3))
|
|
mask = ATA_UDMA2;
|
|
break;
|
|
case HPT370:
|
|
if (!HPT370_ALLOW_ATA100_5 ||
|
|
check_in_drive_list(drive, bad_ata100_5))
|
|
mask = ATA_UDMA4;
|
|
break;
|
|
case HPT370A:
|
|
if (!HPT370_ALLOW_ATA100_5 ||
|
|
check_in_drive_list(drive, bad_ata100_5))
|
|
return ATA_UDMA4;
|
|
case HPT372 :
|
|
case HPT372A:
|
|
case HPT372N:
|
|
case HPT374 :
|
|
if (ata_id_is_sata(drive->id))
|
|
mask &= ~0x0e;
|
|
/* Fall thru */
|
|
default:
|
|
return mask;
|
|
}
|
|
|
|
return check_in_drive_list(drive, bad_ata33) ? 0x00 : mask;
|
|
}
|
|
|
|
static u8 hpt3xx_mdma_filter(ide_drive_t *drive)
|
|
{
|
|
ide_hwif_t *hwif = drive->hwif;
|
|
struct hpt_info *info = hpt3xx_get_info(hwif->dev);
|
|
|
|
switch (info->chip_type) {
|
|
case HPT372 :
|
|
case HPT372A:
|
|
case HPT372N:
|
|
case HPT374 :
|
|
if (ata_id_is_sata(drive->id))
|
|
return 0x00;
|
|
/* Fall thru */
|
|
default:
|
|
return 0x07;
|
|
}
|
|
}
|
|
|
|
static u32 get_speed_setting(u8 speed, struct hpt_info *info)
|
|
{
|
|
int i;
|
|
|
|
/*
|
|
* Lookup the transfer mode table to get the index into
|
|
* the timing table.
|
|
*
|
|
* NOTE: For XFER_PIO_SLOW, PIO mode 0 timings will be used.
|
|
*/
|
|
for (i = 0; i < ARRAY_SIZE(xfer_speeds) - 1; i++)
|
|
if (xfer_speeds[i] == speed)
|
|
break;
|
|
|
|
return info->timings->clock_table[info->clock][i];
|
|
}
|
|
|
|
static void hpt3xx_set_mode(ide_hwif_t *hwif, ide_drive_t *drive)
|
|
{
|
|
struct pci_dev *dev = to_pci_dev(hwif->dev);
|
|
struct hpt_info *info = hpt3xx_get_info(hwif->dev);
|
|
struct hpt_timings *t = info->timings;
|
|
u8 itr_addr = 0x40 + (drive->dn * 4);
|
|
u32 old_itr = 0;
|
|
const u8 speed = drive->dma_mode;
|
|
u32 new_itr = get_speed_setting(speed, info);
|
|
u32 itr_mask = speed < XFER_MW_DMA_0 ? t->pio_mask :
|
|
(speed < XFER_UDMA_0 ? t->dma_mask :
|
|
t->ultra_mask);
|
|
|
|
pci_read_config_dword(dev, itr_addr, &old_itr);
|
|
new_itr = (old_itr & ~itr_mask) | (new_itr & itr_mask);
|
|
/*
|
|
* Disable on-chip PIO FIFO/buffer (and PIO MST mode as well)
|
|
* to avoid problems handling I/O errors later
|
|
*/
|
|
new_itr &= ~0xc0000000;
|
|
|
|
pci_write_config_dword(dev, itr_addr, new_itr);
|
|
}
|
|
|
|
static void hpt3xx_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive)
|
|
{
|
|
drive->dma_mode = drive->pio_mode;
|
|
hpt3xx_set_mode(hwif, drive);
|
|
}
|
|
|
|
static void hpt3xx_maskproc(ide_drive_t *drive, int mask)
|
|
{
|
|
ide_hwif_t *hwif = drive->hwif;
|
|
struct pci_dev *dev = to_pci_dev(hwif->dev);
|
|
struct hpt_info *info = hpt3xx_get_info(hwif->dev);
|
|
|
|
if ((drive->dev_flags & IDE_DFLAG_NIEN_QUIRK) == 0)
|
|
return;
|
|
|
|
if (info->chip_type >= HPT370) {
|
|
u8 scr1 = 0;
|
|
|
|
pci_read_config_byte(dev, 0x5a, &scr1);
|
|
if (((scr1 & 0x10) >> 4) != mask) {
|
|
if (mask)
|
|
scr1 |= 0x10;
|
|
else
|
|
scr1 &= ~0x10;
|
|
pci_write_config_byte(dev, 0x5a, scr1);
|
|
}
|
|
} else if (mask)
|
|
disable_irq(hwif->irq);
|
|
else
|
|
enable_irq(hwif->irq);
|
|
}
|
|
|
|
/*
|
|
* This is specific to the HPT366 UDMA chipset
|
|
* by HighPoint|Triones Technologies, Inc.
|
|
*/
|
|
static void hpt366_dma_lost_irq(ide_drive_t *drive)
|
|
{
|
|
struct pci_dev *dev = to_pci_dev(drive->hwif->dev);
|
|
u8 mcr1 = 0, mcr3 = 0, scr1 = 0;
|
|
|
|
pci_read_config_byte(dev, 0x50, &mcr1);
|
|
pci_read_config_byte(dev, 0x52, &mcr3);
|
|
pci_read_config_byte(dev, 0x5a, &scr1);
|
|
printk("%s: (%s) mcr1=0x%02x, mcr3=0x%02x, scr1=0x%02x\n",
|
|
drive->name, __func__, mcr1, mcr3, scr1);
|
|
if (scr1 & 0x10)
|
|
pci_write_config_byte(dev, 0x5a, scr1 & ~0x10);
|
|
ide_dma_lost_irq(drive);
|
|
}
|
|
|
|
static void hpt370_clear_engine(ide_drive_t *drive)
|
|
{
|
|
ide_hwif_t *hwif = drive->hwif;
|
|
struct pci_dev *dev = to_pci_dev(hwif->dev);
|
|
|
|
pci_write_config_byte(dev, hwif->select_data, 0x37);
|
|
udelay(10);
|
|
}
|
|
|
|
static void hpt370_irq_timeout(ide_drive_t *drive)
|
|
{
|
|
ide_hwif_t *hwif = drive->hwif;
|
|
struct pci_dev *dev = to_pci_dev(hwif->dev);
|
|
u16 bfifo = 0;
|
|
u8 dma_cmd;
|
|
|
|
pci_read_config_word(dev, hwif->select_data + 2, &bfifo);
|
|
printk(KERN_DEBUG "%s: %d bytes in FIFO\n", drive->name, bfifo & 0x1ff);
|
|
|
|
/* get DMA command mode */
|
|
dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD);
|
|
/* stop DMA */
|
|
outb(dma_cmd & ~ATA_DMA_START, hwif->dma_base + ATA_DMA_CMD);
|
|
hpt370_clear_engine(drive);
|
|
}
|
|
|
|
static void hpt370_dma_start(ide_drive_t *drive)
|
|
{
|
|
#ifdef HPT_RESET_STATE_ENGINE
|
|
hpt370_clear_engine(drive);
|
|
#endif
|
|
ide_dma_start(drive);
|
|
}
|
|
|
|
static int hpt370_dma_end(ide_drive_t *drive)
|
|
{
|
|
ide_hwif_t *hwif = drive->hwif;
|
|
u8 dma_stat = inb(hwif->dma_base + ATA_DMA_STATUS);
|
|
|
|
if (dma_stat & ATA_DMA_ACTIVE) {
|
|
/* wait a little */
|
|
udelay(20);
|
|
dma_stat = inb(hwif->dma_base + ATA_DMA_STATUS);
|
|
if (dma_stat & ATA_DMA_ACTIVE)
|
|
hpt370_irq_timeout(drive);
|
|
}
|
|
return ide_dma_end(drive);
|
|
}
|
|
|
|
/* returns 1 if DMA IRQ issued, 0 otherwise */
|
|
static int hpt374_dma_test_irq(ide_drive_t *drive)
|
|
{
|
|
ide_hwif_t *hwif = drive->hwif;
|
|
struct pci_dev *dev = to_pci_dev(hwif->dev);
|
|
u16 bfifo = 0;
|
|
u8 dma_stat;
|
|
|
|
pci_read_config_word(dev, hwif->select_data + 2, &bfifo);
|
|
if (bfifo & 0x1FF) {
|
|
// printk("%s: %d bytes in FIFO\n", drive->name, bfifo);
|
|
return 0;
|
|
}
|
|
|
|
dma_stat = inb(hwif->dma_base + ATA_DMA_STATUS);
|
|
/* return 1 if INTR asserted */
|
|
if (dma_stat & ATA_DMA_INTR)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hpt374_dma_end(ide_drive_t *drive)
|
|
{
|
|
ide_hwif_t *hwif = drive->hwif;
|
|
struct pci_dev *dev = to_pci_dev(hwif->dev);
|
|
u8 mcr = 0, mcr_addr = hwif->select_data;
|
|
u8 bwsr = 0, mask = hwif->channel ? 0x02 : 0x01;
|
|
|
|
pci_read_config_byte(dev, 0x6a, &bwsr);
|
|
pci_read_config_byte(dev, mcr_addr, &mcr);
|
|
if (bwsr & mask)
|
|
pci_write_config_byte(dev, mcr_addr, mcr | 0x30);
|
|
return ide_dma_end(drive);
|
|
}
|
|
|
|
/**
|
|
* hpt3xxn_set_clock - perform clock switching dance
|
|
* @hwif: hwif to switch
|
|
* @mode: clocking mode (0x21 for write, 0x23 otherwise)
|
|
*
|
|
* Switch the DPLL clock on the HPT3xxN devices. This is a right mess.
|
|
*/
|
|
|
|
static void hpt3xxn_set_clock(ide_hwif_t *hwif, u8 mode)
|
|
{
|
|
unsigned long base = hwif->extra_base;
|
|
u8 scr2 = inb(base + 0x6b);
|
|
|
|
if ((scr2 & 0x7f) == mode)
|
|
return;
|
|
|
|
/* Tristate the bus */
|
|
outb(0x80, base + 0x63);
|
|
outb(0x80, base + 0x67);
|
|
|
|
/* Switch clock and reset channels */
|
|
outb(mode, base + 0x6b);
|
|
outb(0xc0, base + 0x69);
|
|
|
|
/*
|
|
* Reset the state machines.
|
|
* NOTE: avoid accidentally enabling the disabled channels.
|
|
*/
|
|
outb(inb(base + 0x60) | 0x32, base + 0x60);
|
|
outb(inb(base + 0x64) | 0x32, base + 0x64);
|
|
|
|
/* Complete reset */
|
|
outb(0x00, base + 0x69);
|
|
|
|
/* Reconnect channels to bus */
|
|
outb(0x00, base + 0x63);
|
|
outb(0x00, base + 0x67);
|
|
}
|
|
|
|
/**
|
|
* hpt3xxn_rw_disk - prepare for I/O
|
|
* @drive: drive for command
|
|
* @rq: block request structure
|
|
*
|
|
* This is called when a disk I/O is issued to HPT3xxN.
|
|
* We need it because of the clock switching.
|
|
*/
|
|
|
|
static void hpt3xxn_rw_disk(ide_drive_t *drive, struct request *rq)
|
|
{
|
|
hpt3xxn_set_clock(drive->hwif, rq_data_dir(rq) ? 0x21 : 0x23);
|
|
}
|
|
|
|
/**
|
|
* hpt37x_calibrate_dpll - calibrate the DPLL
|
|
* @dev: PCI device
|
|
*
|
|
* Perform a calibration cycle on the DPLL.
|
|
* Returns 1 if this succeeds
|
|
*/
|
|
static int hpt37x_calibrate_dpll(struct pci_dev *dev, u16 f_low, u16 f_high)
|
|
{
|
|
u32 dpll = (f_high << 16) | f_low | 0x100;
|
|
u8 scr2;
|
|
int i;
|
|
|
|
pci_write_config_dword(dev, 0x5c, dpll);
|
|
|
|
/* Wait for oscillator ready */
|
|
for(i = 0; i < 0x5000; ++i) {
|
|
udelay(50);
|
|
pci_read_config_byte(dev, 0x5b, &scr2);
|
|
if (scr2 & 0x80)
|
|
break;
|
|
}
|
|
/* See if it stays ready (we'll just bail out if it's not yet) */
|
|
for(i = 0; i < 0x1000; ++i) {
|
|
pci_read_config_byte(dev, 0x5b, &scr2);
|
|
/* DPLL destabilized? */
|
|
if(!(scr2 & 0x80))
|
|
return 0;
|
|
}
|
|
/* Turn off tuning, we have the DPLL set */
|
|
pci_read_config_dword (dev, 0x5c, &dpll);
|
|
pci_write_config_dword(dev, 0x5c, (dpll & ~0x100));
|
|
return 1;
|
|
}
|
|
|
|
static void hpt3xx_disable_fast_irq(struct pci_dev *dev, u8 mcr_addr)
|
|
{
|
|
struct ide_host *host = pci_get_drvdata(dev);
|
|
struct hpt_info *info = host->host_priv + (&dev->dev == host->dev[1]);
|
|
u8 chip_type = info->chip_type;
|
|
u8 new_mcr, old_mcr = 0;
|
|
|
|
/*
|
|
* Disable the "fast interrupt" prediction. Don't hold off
|
|
* on interrupts. (== 0x01 despite what the docs say)
|
|
*/
|
|
pci_read_config_byte(dev, mcr_addr + 1, &old_mcr);
|
|
|
|
if (chip_type >= HPT374)
|
|
new_mcr = old_mcr & ~0x07;
|
|
else if (chip_type >= HPT370) {
|
|
new_mcr = old_mcr;
|
|
new_mcr &= ~0x02;
|
|
#ifdef HPT_DELAY_INTERRUPT
|
|
new_mcr &= ~0x01;
|
|
#else
|
|
new_mcr |= 0x01;
|
|
#endif
|
|
} else /* HPT366 and HPT368 */
|
|
new_mcr = old_mcr & ~0x80;
|
|
|
|
if (new_mcr != old_mcr)
|
|
pci_write_config_byte(dev, mcr_addr + 1, new_mcr);
|
|
}
|
|
|
|
static int init_chipset_hpt366(struct pci_dev *dev)
|
|
{
|
|
unsigned long io_base = pci_resource_start(dev, 4);
|
|
struct hpt_info *info = hpt3xx_get_info(&dev->dev);
|
|
const char *name = DRV_NAME;
|
|
u8 pci_clk, dpll_clk = 0; /* PCI and DPLL clock in MHz */
|
|
u8 chip_type;
|
|
enum ata_clock clock;
|
|
|
|
chip_type = info->chip_type;
|
|
|
|
pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (L1_CACHE_BYTES / 4));
|
|
pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x78);
|
|
pci_write_config_byte(dev, PCI_MIN_GNT, 0x08);
|
|
pci_write_config_byte(dev, PCI_MAX_LAT, 0x08);
|
|
|
|
/*
|
|
* First, try to estimate the PCI clock frequency...
|
|
*/
|
|
if (chip_type >= HPT370) {
|
|
u8 scr1 = 0;
|
|
u16 f_cnt = 0;
|
|
u32 temp = 0;
|
|
|
|
/* Interrupt force enable. */
|
|
pci_read_config_byte(dev, 0x5a, &scr1);
|
|
if (scr1 & 0x10)
|
|
pci_write_config_byte(dev, 0x5a, scr1 & ~0x10);
|
|
|
|
/*
|
|
* HighPoint does this for HPT372A.
|
|
* NOTE: This register is only writeable via I/O space.
|
|
*/
|
|
if (chip_type == HPT372A)
|
|
outb(0x0e, io_base + 0x9c);
|
|
|
|
/*
|
|
* Default to PCI clock. Make sure MA15/16 are set to output
|
|
* to prevent drives having problems with 40-pin cables.
|
|
*/
|
|
pci_write_config_byte(dev, 0x5b, 0x23);
|
|
|
|
/*
|
|
* We'll have to read f_CNT value in order to determine
|
|
* the PCI clock frequency according to the following ratio:
|
|
*
|
|
* f_CNT = Fpci * 192 / Fdpll
|
|
*
|
|
* First try reading the register in which the HighPoint BIOS
|
|
* saves f_CNT value before reprogramming the DPLL from its
|
|
* default setting (which differs for the various chips).
|
|
*
|
|
* NOTE: This register is only accessible via I/O space;
|
|
* HPT374 BIOS only saves it for the function 0, so we have to
|
|
* always read it from there -- no need to check the result of
|
|
* pci_get_slot() for the function 0 as the whole device has
|
|
* been already "pinned" (via function 1) in init_setup_hpt374()
|
|
*/
|
|
if (chip_type == HPT374 && (PCI_FUNC(dev->devfn) & 1)) {
|
|
struct pci_dev *dev1 = pci_get_slot(dev->bus,
|
|
dev->devfn - 1);
|
|
unsigned long io_base = pci_resource_start(dev1, 4);
|
|
|
|
temp = inl(io_base + 0x90);
|
|
pci_dev_put(dev1);
|
|
} else
|
|
temp = inl(io_base + 0x90);
|
|
|
|
/*
|
|
* In case the signature check fails, we'll have to
|
|
* resort to reading the f_CNT register itself in hopes
|
|
* that nobody has touched the DPLL yet...
|
|
*/
|
|
if ((temp & 0xFFFFF000) != 0xABCDE000) {
|
|
int i;
|
|
|
|
printk(KERN_WARNING "%s %s: no clock data saved by "
|
|
"BIOS\n", name, pci_name(dev));
|
|
|
|
/* Calculate the average value of f_CNT. */
|
|
for (temp = i = 0; i < 128; i++) {
|
|
pci_read_config_word(dev, 0x78, &f_cnt);
|
|
temp += f_cnt & 0x1ff;
|
|
mdelay(1);
|
|
}
|
|
f_cnt = temp / 128;
|
|
} else
|
|
f_cnt = temp & 0x1ff;
|
|
|
|
dpll_clk = info->dpll_clk;
|
|
pci_clk = (f_cnt * dpll_clk) / 192;
|
|
|
|
/* Clamp PCI clock to bands. */
|
|
if (pci_clk < 40)
|
|
pci_clk = 33;
|
|
else if(pci_clk < 45)
|
|
pci_clk = 40;
|
|
else if(pci_clk < 55)
|
|
pci_clk = 50;
|
|
else
|
|
pci_clk = 66;
|
|
|
|
printk(KERN_INFO "%s %s: DPLL base: %d MHz, f_CNT: %d, "
|
|
"assuming %d MHz PCI\n", name, pci_name(dev),
|
|
dpll_clk, f_cnt, pci_clk);
|
|
} else {
|
|
u32 itr1 = 0;
|
|
|
|
pci_read_config_dword(dev, 0x40, &itr1);
|
|
|
|
/* Detect PCI clock by looking at cmd_high_time. */
|
|
switch((itr1 >> 8) & 0x07) {
|
|
case 0x09:
|
|
pci_clk = 40;
|
|
break;
|
|
case 0x05:
|
|
pci_clk = 25;
|
|
break;
|
|
case 0x07:
|
|
default:
|
|
pci_clk = 33;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Let's assume we'll use PCI clock for the ATA clock... */
|
|
switch (pci_clk) {
|
|
case 25:
|
|
clock = ATA_CLOCK_25MHZ;
|
|
break;
|
|
case 33:
|
|
default:
|
|
clock = ATA_CLOCK_33MHZ;
|
|
break;
|
|
case 40:
|
|
clock = ATA_CLOCK_40MHZ;
|
|
break;
|
|
case 50:
|
|
clock = ATA_CLOCK_50MHZ;
|
|
break;
|
|
case 66:
|
|
clock = ATA_CLOCK_66MHZ;
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Only try the DPLL if we don't have a table for the PCI clock that
|
|
* we are running at for HPT370/A, always use it for anything newer...
|
|
*
|
|
* NOTE: Using the internal DPLL results in slow reads on 33 MHz PCI.
|
|
* We also don't like using the DPLL because this causes glitches
|
|
* on PRST-/SRST- when the state engine gets reset...
|
|
*/
|
|
if (chip_type >= HPT374 || info->timings->clock_table[clock] == NULL) {
|
|
u16 f_low, delta = pci_clk < 50 ? 2 : 4;
|
|
int adjust;
|
|
|
|
/*
|
|
* Select 66 MHz DPLL clock only if UltraATA/133 mode is
|
|
* supported/enabled, use 50 MHz DPLL clock otherwise...
|
|
*/
|
|
if (info->udma_mask == ATA_UDMA6) {
|
|
dpll_clk = 66;
|
|
clock = ATA_CLOCK_66MHZ;
|
|
} else if (dpll_clk) { /* HPT36x chips don't have DPLL */
|
|
dpll_clk = 50;
|
|
clock = ATA_CLOCK_50MHZ;
|
|
}
|
|
|
|
if (info->timings->clock_table[clock] == NULL) {
|
|
printk(KERN_ERR "%s %s: unknown bus timing!\n",
|
|
name, pci_name(dev));
|
|
return -EIO;
|
|
}
|
|
|
|
/* Select the DPLL clock. */
|
|
pci_write_config_byte(dev, 0x5b, 0x21);
|
|
|
|
/*
|
|
* Adjust the DPLL based upon PCI clock, enable it,
|
|
* and wait for stabilization...
|
|
*/
|
|
f_low = (pci_clk * 48) / dpll_clk;
|
|
|
|
for (adjust = 0; adjust < 8; adjust++) {
|
|
if(hpt37x_calibrate_dpll(dev, f_low, f_low + delta))
|
|
break;
|
|
|
|
/*
|
|
* See if it'll settle at a fractionally different clock
|
|
*/
|
|
if (adjust & 1)
|
|
f_low -= adjust >> 1;
|
|
else
|
|
f_low += adjust >> 1;
|
|
}
|
|
if (adjust == 8) {
|
|
printk(KERN_ERR "%s %s: DPLL did not stabilize!\n",
|
|
name, pci_name(dev));
|
|
return -EIO;
|
|
}
|
|
|
|
printk(KERN_INFO "%s %s: using %d MHz DPLL clock\n",
|
|
name, pci_name(dev), dpll_clk);
|
|
} else {
|
|
/* Mark the fact that we're not using the DPLL. */
|
|
dpll_clk = 0;
|
|
|
|
printk(KERN_INFO "%s %s: using %d MHz PCI clock\n",
|
|
name, pci_name(dev), pci_clk);
|
|
}
|
|
|
|
/* Store the clock frequencies. */
|
|
info->dpll_clk = dpll_clk;
|
|
info->pci_clk = pci_clk;
|
|
info->clock = clock;
|
|
|
|
if (chip_type >= HPT370) {
|
|
u8 mcr1, mcr4;
|
|
|
|
/*
|
|
* Reset the state engines.
|
|
* NOTE: Avoid accidentally enabling the disabled channels.
|
|
*/
|
|
pci_read_config_byte (dev, 0x50, &mcr1);
|
|
pci_read_config_byte (dev, 0x54, &mcr4);
|
|
pci_write_config_byte(dev, 0x50, (mcr1 | 0x32));
|
|
pci_write_config_byte(dev, 0x54, (mcr4 | 0x32));
|
|
udelay(100);
|
|
}
|
|
|
|
/*
|
|
* On HPT371N, if ATA clock is 66 MHz we must set bit 2 in
|
|
* the MISC. register to stretch the UltraDMA Tss timing.
|
|
* NOTE: This register is only writeable via I/O space.
|
|
*/
|
|
if (chip_type == HPT371N && clock == ATA_CLOCK_66MHZ)
|
|
outb(inb(io_base + 0x9c) | 0x04, io_base + 0x9c);
|
|
|
|
hpt3xx_disable_fast_irq(dev, 0x50);
|
|
hpt3xx_disable_fast_irq(dev, 0x54);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static u8 hpt3xx_cable_detect(ide_hwif_t *hwif)
|
|
{
|
|
struct pci_dev *dev = to_pci_dev(hwif->dev);
|
|
struct hpt_info *info = hpt3xx_get_info(hwif->dev);
|
|
u8 chip_type = info->chip_type;
|
|
u8 scr1 = 0, ata66 = hwif->channel ? 0x01 : 0x02;
|
|
|
|
/*
|
|
* The HPT37x uses the CBLID pins as outputs for MA15/MA16
|
|
* address lines to access an external EEPROM. To read valid
|
|
* cable detect state the pins must be enabled as inputs.
|
|
*/
|
|
if (chip_type == HPT374 && (PCI_FUNC(dev->devfn) & 1)) {
|
|
/*
|
|
* HPT374 PCI function 1
|
|
* - set bit 15 of reg 0x52 to enable TCBLID as input
|
|
* - set bit 15 of reg 0x56 to enable FCBLID as input
|
|
*/
|
|
u8 mcr_addr = hwif->select_data + 2;
|
|
u16 mcr;
|
|
|
|
pci_read_config_word(dev, mcr_addr, &mcr);
|
|
pci_write_config_word(dev, mcr_addr, mcr | 0x8000);
|
|
/* Debounce, then read cable ID register */
|
|
udelay(10);
|
|
pci_read_config_byte(dev, 0x5a, &scr1);
|
|
pci_write_config_word(dev, mcr_addr, mcr);
|
|
} else if (chip_type >= HPT370) {
|
|
/*
|
|
* HPT370/372 and 374 pcifn 0
|
|
* - clear bit 0 of reg 0x5b to enable P/SCBLID as inputs
|
|
*/
|
|
u8 scr2 = 0;
|
|
|
|
pci_read_config_byte(dev, 0x5b, &scr2);
|
|
pci_write_config_byte(dev, 0x5b, scr2 & ~1);
|
|
/* Debounce, then read cable ID register */
|
|
udelay(10);
|
|
pci_read_config_byte(dev, 0x5a, &scr1);
|
|
pci_write_config_byte(dev, 0x5b, scr2);
|
|
} else
|
|
pci_read_config_byte(dev, 0x5a, &scr1);
|
|
|
|
return (scr1 & ata66) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
|
|
}
|
|
|
|
static void init_hwif_hpt366(ide_hwif_t *hwif)
|
|
{
|
|
struct hpt_info *info = hpt3xx_get_info(hwif->dev);
|
|
u8 chip_type = info->chip_type;
|
|
|
|
/* Cache the channel's MISC. control registers' offset */
|
|
hwif->select_data = hwif->channel ? 0x54 : 0x50;
|
|
|
|
/*
|
|
* HPT3xxN chips have some complications:
|
|
*
|
|
* - on 33 MHz PCI we must clock switch
|
|
* - on 66 MHz PCI we must NOT use the PCI clock
|
|
*/
|
|
if (chip_type >= HPT372N && info->dpll_clk && info->pci_clk < 66) {
|
|
/*
|
|
* Clock is shared between the channels,
|
|
* so we'll have to serialize them... :-(
|
|
*/
|
|
hwif->host->host_flags |= IDE_HFLAG_SERIALIZE;
|
|
hwif->rw_disk = &hpt3xxn_rw_disk;
|
|
}
|
|
}
|
|
|
|
static int init_dma_hpt366(ide_hwif_t *hwif,
|
|
const struct ide_port_info *d)
|
|
{
|
|
struct pci_dev *dev = to_pci_dev(hwif->dev);
|
|
unsigned long flags, base = ide_pci_dma_base(hwif, d);
|
|
u8 dma_old, dma_new, masterdma = 0, slavedma = 0;
|
|
|
|
if (base == 0)
|
|
return -1;
|
|
|
|
hwif->dma_base = base;
|
|
|
|
if (ide_pci_check_simplex(hwif, d) < 0)
|
|
return -1;
|
|
|
|
if (ide_pci_set_master(dev, d->name) < 0)
|
|
return -1;
|
|
|
|
dma_old = inb(base + 2);
|
|
|
|
local_irq_save(flags);
|
|
|
|
dma_new = dma_old;
|
|
pci_read_config_byte(dev, hwif->channel ? 0x4b : 0x43, &masterdma);
|
|
pci_read_config_byte(dev, hwif->channel ? 0x4f : 0x47, &slavedma);
|
|
|
|
if (masterdma & 0x30) dma_new |= 0x20;
|
|
if ( slavedma & 0x30) dma_new |= 0x40;
|
|
if (dma_new != dma_old)
|
|
outb(dma_new, base + 2);
|
|
|
|
local_irq_restore(flags);
|
|
|
|
printk(KERN_INFO " %s: BM-DMA at 0x%04lx-0x%04lx\n",
|
|
hwif->name, base, base + 7);
|
|
|
|
hwif->extra_base = base + (hwif->channel ? 8 : 16);
|
|
|
|
if (ide_allocate_dma_engine(hwif))
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void hpt374_init(struct pci_dev *dev, struct pci_dev *dev2)
|
|
{
|
|
if (dev2->irq != dev->irq) {
|
|
/* FIXME: we need a core pci_set_interrupt() */
|
|
dev2->irq = dev->irq;
|
|
printk(KERN_INFO DRV_NAME " %s: PCI config space interrupt "
|
|
"fixed\n", pci_name(dev2));
|
|
}
|
|
}
|
|
|
|
static void hpt371_init(struct pci_dev *dev)
|
|
{
|
|
u8 mcr1 = 0;
|
|
|
|
/*
|
|
* HPT371 chips physically have only one channel, the secondary one,
|
|
* but the primary channel registers do exist! Go figure...
|
|
* So, we manually disable the non-existing channel here
|
|
* (if the BIOS hasn't done this already).
|
|
*/
|
|
pci_read_config_byte(dev, 0x50, &mcr1);
|
|
if (mcr1 & 0x04)
|
|
pci_write_config_byte(dev, 0x50, mcr1 & ~0x04);
|
|
}
|
|
|
|
static int hpt36x_init(struct pci_dev *dev, struct pci_dev *dev2)
|
|
{
|
|
u8 mcr1 = 0, pin1 = 0, pin2 = 0;
|
|
|
|
/*
|
|
* Now we'll have to force both channels enabled if
|
|
* at least one of them has been enabled by BIOS...
|
|
*/
|
|
pci_read_config_byte(dev, 0x50, &mcr1);
|
|
if (mcr1 & 0x30)
|
|
pci_write_config_byte(dev, 0x50, mcr1 | 0x30);
|
|
|
|
pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin1);
|
|
pci_read_config_byte(dev2, PCI_INTERRUPT_PIN, &pin2);
|
|
|
|
if (pin1 != pin2 && dev->irq == dev2->irq) {
|
|
printk(KERN_INFO DRV_NAME " %s: onboard version of chipset, "
|
|
"pin1=%d pin2=%d\n", pci_name(dev), pin1, pin2);
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define IDE_HFLAGS_HPT3XX \
|
|
(IDE_HFLAG_NO_ATAPI_DMA | \
|
|
IDE_HFLAG_OFF_BOARD)
|
|
|
|
static const struct ide_port_ops hpt3xx_port_ops = {
|
|
.set_pio_mode = hpt3xx_set_pio_mode,
|
|
.set_dma_mode = hpt3xx_set_mode,
|
|
.maskproc = hpt3xx_maskproc,
|
|
.mdma_filter = hpt3xx_mdma_filter,
|
|
.udma_filter = hpt3xx_udma_filter,
|
|
.cable_detect = hpt3xx_cable_detect,
|
|
};
|
|
|
|
static const struct ide_dma_ops hpt37x_dma_ops = {
|
|
.dma_host_set = ide_dma_host_set,
|
|
.dma_setup = ide_dma_setup,
|
|
.dma_start = ide_dma_start,
|
|
.dma_end = hpt374_dma_end,
|
|
.dma_test_irq = hpt374_dma_test_irq,
|
|
.dma_lost_irq = ide_dma_lost_irq,
|
|
.dma_timer_expiry = ide_dma_sff_timer_expiry,
|
|
.dma_sff_read_status = ide_dma_sff_read_status,
|
|
};
|
|
|
|
static const struct ide_dma_ops hpt370_dma_ops = {
|
|
.dma_host_set = ide_dma_host_set,
|
|
.dma_setup = ide_dma_setup,
|
|
.dma_start = hpt370_dma_start,
|
|
.dma_end = hpt370_dma_end,
|
|
.dma_test_irq = ide_dma_test_irq,
|
|
.dma_lost_irq = ide_dma_lost_irq,
|
|
.dma_timer_expiry = ide_dma_sff_timer_expiry,
|
|
.dma_clear = hpt370_irq_timeout,
|
|
.dma_sff_read_status = ide_dma_sff_read_status,
|
|
};
|
|
|
|
static const struct ide_dma_ops hpt36x_dma_ops = {
|
|
.dma_host_set = ide_dma_host_set,
|
|
.dma_setup = ide_dma_setup,
|
|
.dma_start = ide_dma_start,
|
|
.dma_end = ide_dma_end,
|
|
.dma_test_irq = ide_dma_test_irq,
|
|
.dma_lost_irq = hpt366_dma_lost_irq,
|
|
.dma_timer_expiry = ide_dma_sff_timer_expiry,
|
|
.dma_sff_read_status = ide_dma_sff_read_status,
|
|
};
|
|
|
|
static const struct ide_port_info hpt366_chipsets[] = {
|
|
{ /* 0: HPT36x */
|
|
.name = DRV_NAME,
|
|
.init_chipset = init_chipset_hpt366,
|
|
.init_hwif = init_hwif_hpt366,
|
|
.init_dma = init_dma_hpt366,
|
|
/*
|
|
* HPT36x chips have one channel per function and have
|
|
* both channel enable bits located differently and visible
|
|
* to both functions -- really stupid design decision... :-(
|
|
* Bit 4 is for the primary channel, bit 5 for the secondary.
|
|
*/
|
|
.enablebits = {{0x50,0x10,0x10}, {0x54,0x04,0x04}},
|
|
.port_ops = &hpt3xx_port_ops,
|
|
.dma_ops = &hpt36x_dma_ops,
|
|
.host_flags = IDE_HFLAGS_HPT3XX | IDE_HFLAG_SINGLE,
|
|
.pio_mask = ATA_PIO4,
|
|
.mwdma_mask = ATA_MWDMA2,
|
|
},
|
|
{ /* 1: HPT3xx */
|
|
.name = DRV_NAME,
|
|
.init_chipset = init_chipset_hpt366,
|
|
.init_hwif = init_hwif_hpt366,
|
|
.init_dma = init_dma_hpt366,
|
|
.enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
|
|
.port_ops = &hpt3xx_port_ops,
|
|
.dma_ops = &hpt37x_dma_ops,
|
|
.host_flags = IDE_HFLAGS_HPT3XX,
|
|
.pio_mask = ATA_PIO4,
|
|
.mwdma_mask = ATA_MWDMA2,
|
|
}
|
|
};
|
|
|
|
/**
|
|
* hpt366_init_one - called when an HPT366 is found
|
|
* @dev: the hpt366 device
|
|
* @id: the matching pci id
|
|
*
|
|
* Called when the PCI registration layer (or the IDE initialization)
|
|
* finds a device matching our IDE device tables.
|
|
*/
|
|
static int hpt366_init_one(struct pci_dev *dev, const struct pci_device_id *id)
|
|
{
|
|
const struct hpt_info *info = NULL;
|
|
struct hpt_info *dyn_info;
|
|
struct pci_dev *dev2 = NULL;
|
|
struct ide_port_info d;
|
|
u8 idx = id->driver_data;
|
|
u8 rev = dev->revision;
|
|
int ret;
|
|
|
|
if ((idx == 0 || idx == 4) && (PCI_FUNC(dev->devfn) & 1))
|
|
return -ENODEV;
|
|
|
|
switch (idx) {
|
|
case 0:
|
|
if (rev < 3)
|
|
info = &hpt36x;
|
|
else {
|
|
switch (min_t(u8, rev, 6)) {
|
|
case 3: info = &hpt370; break;
|
|
case 4: info = &hpt370a; break;
|
|
case 5: info = &hpt372; break;
|
|
case 6: info = &hpt372n; break;
|
|
}
|
|
idx++;
|
|
}
|
|
break;
|
|
case 1:
|
|
info = (rev > 1) ? &hpt372n : &hpt372a;
|
|
break;
|
|
case 2:
|
|
info = (rev > 1) ? &hpt302n : &hpt302;
|
|
break;
|
|
case 3:
|
|
hpt371_init(dev);
|
|
info = (rev > 1) ? &hpt371n : &hpt371;
|
|
break;
|
|
case 4:
|
|
info = &hpt374;
|
|
break;
|
|
case 5:
|
|
info = &hpt372n;
|
|
break;
|
|
}
|
|
|
|
printk(KERN_INFO DRV_NAME ": %s chipset detected\n", info->chip_name);
|
|
|
|
d = hpt366_chipsets[min_t(u8, idx, 1)];
|
|
|
|
d.udma_mask = info->udma_mask;
|
|
|
|
/* fixup ->dma_ops for HPT370/HPT370A */
|
|
if (info == &hpt370 || info == &hpt370a)
|
|
d.dma_ops = &hpt370_dma_ops;
|
|
|
|
if (info == &hpt36x || info == &hpt374)
|
|
dev2 = pci_get_slot(dev->bus, dev->devfn + 1);
|
|
|
|
dyn_info = kzalloc(sizeof(*dyn_info) * (dev2 ? 2 : 1), GFP_KERNEL);
|
|
if (dyn_info == NULL) {
|
|
printk(KERN_ERR "%s %s: out of memory!\n",
|
|
d.name, pci_name(dev));
|
|
pci_dev_put(dev2);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/*
|
|
* Copy everything from a static "template" structure
|
|
* to just allocated per-chip hpt_info structure.
|
|
*/
|
|
memcpy(dyn_info, info, sizeof(*dyn_info));
|
|
|
|
if (dev2) {
|
|
memcpy(dyn_info + 1, info, sizeof(*dyn_info));
|
|
|
|
if (info == &hpt374)
|
|
hpt374_init(dev, dev2);
|
|
else {
|
|
if (hpt36x_init(dev, dev2))
|
|
d.host_flags &= ~IDE_HFLAG_NON_BOOTABLE;
|
|
}
|
|
|
|
ret = ide_pci_init_two(dev, dev2, &d, dyn_info);
|
|
if (ret < 0) {
|
|
pci_dev_put(dev2);
|
|
kfree(dyn_info);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
ret = ide_pci_init_one(dev, &d, dyn_info);
|
|
if (ret < 0)
|
|
kfree(dyn_info);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void hpt366_remove(struct pci_dev *dev)
|
|
{
|
|
struct ide_host *host = pci_get_drvdata(dev);
|
|
struct ide_info *info = host->host_priv;
|
|
struct pci_dev *dev2 = host->dev[1] ? to_pci_dev(host->dev[1]) : NULL;
|
|
|
|
ide_pci_remove(dev);
|
|
pci_dev_put(dev2);
|
|
kfree(info);
|
|
}
|
|
|
|
static const struct pci_device_id hpt366_pci_tbl[] = {
|
|
{ PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT366), 0 },
|
|
{ PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT372), 1 },
|
|
{ PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT302), 2 },
|
|
{ PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT371), 3 },
|
|
{ PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT374), 4 },
|
|
{ PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT372N), 5 },
|
|
{ 0, },
|
|
};
|
|
MODULE_DEVICE_TABLE(pci, hpt366_pci_tbl);
|
|
|
|
static struct pci_driver hpt366_pci_driver = {
|
|
.name = "HPT366_IDE",
|
|
.id_table = hpt366_pci_tbl,
|
|
.probe = hpt366_init_one,
|
|
.remove = hpt366_remove,
|
|
.suspend = ide_pci_suspend,
|
|
.resume = ide_pci_resume,
|
|
};
|
|
|
|
static int __init hpt366_ide_init(void)
|
|
{
|
|
return ide_pci_register_driver(&hpt366_pci_driver);
|
|
}
|
|
|
|
static void __exit hpt366_ide_exit(void)
|
|
{
|
|
pci_unregister_driver(&hpt366_pci_driver);
|
|
}
|
|
|
|
module_init(hpt366_ide_init);
|
|
module_exit(hpt366_ide_exit);
|
|
|
|
MODULE_AUTHOR("Andre Hedrick");
|
|
MODULE_DESCRIPTION("PCI driver module for Highpoint HPT366 IDE");
|
|
MODULE_LICENSE("GPL");
|