Look at http://www.sis.com/products/chipsets/oa/socketa/745.htm
The chip has internal MuTIOL, but no 961/2/3 chip can be connected
to it. I'm not sure, of course, whether the internal IDE of this chip
behaves like a 961/2/3, though.
> - the new config_xfer_rate is commented out until ide_find_best_mode is
> patched for bad drive handling (until then reverted to the old one using
> the config_drive_xfer_rate helper function).
Ok. I'll provide a patch for ide_find_best_mode().
> For the 2.5 tree, I'll check the latest 2.5-bk and 2.5-ac state tomorrow
> (need some sleep). I see 2.5-ac is laging behind (.69 vs .72), do you
> want me to push a patch to Linus directly or to you first ? If you want
> it first, against 2.5-bk or -ac (or both) ?
>
> Thanks to Vojtech,
>
> LB.
> diff -urN -X dontdiff --exclude=tmp_include_depends linux-2.4.21-ac1/drivers/ide/pci/sis5513.c linux-2.4.21-ac1-vojtech/drivers/ide/pci/sis5513.c
> --- linux-2.4.21-ac1/drivers/ide/pci/sis5513.c 2003-06-18 23:20:46.000000000 +0200
> +++ linux-2.4.21-ac1-vojtech/drivers/ide/pci/sis5513.c 2003-06-19 00:58:48.000000000 +0200
> @@ -1,8 +1,9 @@
> /*
> - * linux/drivers/ide/pci/sis5513.c Version 0.14ac Sept 11, 2002
> + * linux/drivers/ide/pci/sis5513.c Version 0.16ac+vp Jun 18, 2003
> *
> * Copyright (C) 1999-2000 Andre Hedrick <andre@linux-ide.org>
> * Copyright (C) 2002 Lionel Bouton <Lionel.Bouton@inet6.fr>, Maintainer
> + * Copyright (C) 2003 Vojtech Pavlik <vojtech@suse.cz>
> * May be copied or modified under the terms of the GNU General Public License
> *
> *
> @@ -14,31 +15,33 @@
> * for checking code correctness, providing patches.
> *
> *
> - * Original tests and design on the SiS620/5513 chipset.
> - * ATA100 tests and design on the SiS735/5513 chipset.
> + * Original tests and design on the SiS620 chipset.
> + * ATA100 tests and design on the SiS735 chipset.
> * ATA16/33 support from specs
> * ATA133 support for SiS961/962 by L.C. Chang <lcchang@sis.com.tw>
> + * ATA133 961/962/963 fixes by Vojtech Pavlik <vojtech@suse.cz>
> *
> * Documentation:
> - * SiS chipset documentation available under NDA to companies not
> - * individuals only.
> + * SiS chipset documentation available under NDA to companies only
> + * (not to individuals).
> */
>
> /*
> - * Notes/Special cases:
> - * - SiS5513 derivatives usually have the same PCI IDE register layout when
> - * supporting the same UDMA modes.
> - * - There are exceptions :
> - * . SiS730 and SiS550 use the same layout than ATA_66 chipsets but support
> - * ATA_100
> - * . ATA_133 capable chipsets mark a shift in SiS chipset designs : previously
> - * south and northbridge were integrated, making IDE (a southbridge function)
> - * capabilities easily deduced from the northbridge PCI id. With ATA_133,
> - * chipsets started to be split in the usual north/south bridges chips
> - * -> the driver needs to detect the correct southbridge when faced to newest
> - * northbridges.
> - * . On ATA133 capable chipsets when bit 30 of dword at 0x54 is 1 the
> - * configuration space is moved from 0x40 to 0x70.
> + * The original SiS5513 comes from a SiS5511/55112/5513 chipset. The original
> + * SiS5513 was also used in the SiS5596/5513 chipset. Thus if we see a SiS5511
> + * or SiS5596, we can assume we see the first MWDMA-16 capable SiS5513 chip.
> + *
> + * Later SiS chipsets integrated the 5513 functionality into the NorthBridge,
> + * starting with SiS5571 and up to SiS745. The PCI ID didn't change, though. We
> + * can figure out that we have a more modern and more capable 5513 by looking
> + * for the respective NorthBridge IDs.
> + *
> + * Even later (96x family) SiS chipsets use the MuTIOL link and place the 5513
> + * into the SouthBrige. Here we cannot rely on looking up the NorthBridge PCI
> + * ID, while the now ATA-133 capable 5513 still has the same PCI ID.
> + * Fortunately the 5513 can be 'unmasked' by fiddling with some config space
> + * bits, changing its device id to the true one - 5517 for 961 and 5518 for
> + * 962/963.
> */
>
> #include <linux/config.h>
> @@ -57,94 +60,23 @@
> #include <linux/init.h>
> #include <linux/ide.h>
>
> -#include <asm/io.h>
> #include <asm/irq.h>
>
> +#include "ide-timing.h"
> #include "ide_modes.h"
> #include "sis5513.h"
>
> -/* When DEBUG is defined it outputs initial PCI config register
> - values and changes made to them by the driver */
> -// #define DEBUG
> -/* When BROKEN_LEVEL is defined it limits the DMA mode
> - at boot time to its value */
> -// #define BROKEN_LEVEL XFER_SW_DMA_0
> -
> -/* Miscellaneous flags */
> -#define SIS5513_LATENCY 0x01
> -
> /* registers layout and init values are chipset family dependant */
> -/* 1/ define families */
> -#define ATA_00 0x00
> +
> #define ATA_16 0x01
> #define ATA_33 0x02
> #define ATA_66 0x03
> -#define ATA_100a 0x04 // SiS730 is ATA100 with ATA66 layout
> +#define ATA_100a 0x04 // SiS730/SiS550 is ATA100 with ATA66 layout
> #define ATA_100 0x05
> #define ATA_133a 0x06 // SiS961b with 133 support
> -#define ATA_133 0x07 // SiS962
> -/* 2/ variable holding the controller chipset family value */
> -static u8 chipset_family;
> -
> -
> -/*
> - * Debug code: following IDE config registers' changes
> - */
> -#ifdef DEBUG
> -/* Copy of IDE Config registers fewer will be used
> - * Some odd chipsets hang if unused registers are accessed
> - * -> We only access them in #DEBUG code (then we'll see if SiS did
> - * it right from day one) */
> -static u8 ide_regs_copy[0xff];
> -
> -/* Read config registers, print differences from previous read */
> -static void sis5513_load_verify_registers(struct pci_dev* dev, char* info) {
> - int i;
> - u8 reg_val;
> - u8 changed=0;
> -
> - printk("SIS5513: %s, changed registers:\n", info);
> - for(i=0; i<=0xff; i++) {
> - pci_read_config_byte(dev, i, ®_val);
> - if (reg_val != ide_regs_copy[i]) {
> - printk("%02x: %02x -> %02x\n",
> - i, ide_regs_copy[i], reg_val);
> - ide_regs_copy[i]=reg_val;
> - changed=1;
> - }
> - }
> -
> - if (!changed) {
> - printk("none\n");
> - }
> -}
> -
> -/* Load config registers, no printing */
> -static void sis5513_load_registers(struct pci_dev* dev) {
> - int i;
> -
> - for(i=0; i<=0xff; i++) {
> - pci_read_config_byte(dev, i, &(ide_regs_copy[i]));
> - }
> -}
> -
> -/* Print config space registers a la "lspci -vxxx" */
> -static void sis5513_print_registers(struct pci_dev* dev, char* marker) {
> - int i,j;
> -
> - sis5513_load_registers(dev);
> - printk("SIS5513 %s\n", marker);
> -
> - for(i=0; i<=0xf; i++) {
> - printk("SIS5513 dump: %d" "0:", i);
> - for(j=0; j<=0xf; j++) {
> - printk(" %02x", ide_regs_copy[(i<<16)+j]);
> - }
> - printk("\n");
> - }
> -}
> -#endif
> +#define ATA_133 0x07 // SiS962/963
>
> +static u8 chipset_family;
>
> /*
> * Devices supported
> @@ -155,42 +87,37 @@
> u8 chipset_family;
> u8 flags;
> } SiSHostChipInfo[] = {
> - { "SiS752", PCI_DEVICE_ID_SI_752, ATA_133, 0 },
> - { "SiS751", PCI_DEVICE_ID_SI_751, ATA_133, 0 },
> - { "SiS750", PCI_DEVICE_ID_SI_750, ATA_133, 0 },
> - { "SiS748", PCI_DEVICE_ID_SI_748, ATA_133, 0 },
> - { "SiS746", PCI_DEVICE_ID_SI_746, ATA_133, 0 },
> - { "SiS745", PCI_DEVICE_ID_SI_745, ATA_133, 0 },
> - { "SiS740", PCI_DEVICE_ID_SI_740, ATA_133, 0 },
> - { "SiS735", PCI_DEVICE_ID_SI_735, ATA_100, SIS5513_LATENCY },
> - { "SiS730", PCI_DEVICE_ID_SI_730, ATA_100a, SIS5513_LATENCY },
> - { "SiS655", PCI_DEVICE_ID_SI_655, ATA_133, 0 },
> - { "SiS652", PCI_DEVICE_ID_SI_652, ATA_133, 0 },
> - { "SiS651", PCI_DEVICE_ID_SI_651, ATA_133, 0 },
> - { "SiS650", PCI_DEVICE_ID_SI_650, ATA_133, 0 },
> - { "SiS648", PCI_DEVICE_ID_SI_648, ATA_133, 0 },
> - { "SiS646", PCI_DEVICE_ID_SI_646, ATA_133, 0 },
> - { "SiS645", PCI_DEVICE_ID_SI_645, ATA_133, 0 },
> - { "SiS635", PCI_DEVICE_ID_SI_635, ATA_100, SIS5513_LATENCY },
> - { "SiS640", PCI_DEVICE_ID_SI_640, ATA_66, SIS5513_LATENCY },
> - { "SiS630", PCI_DEVICE_ID_SI_630, ATA_66, SIS5513_LATENCY },
> - { "SiS620", PCI_DEVICE_ID_SI_620, ATA_66, SIS5513_LATENCY },
> - { "SiS550", PCI_DEVICE_ID_SI_550, ATA_100a, 0},
> - { "SiS540", PCI_DEVICE_ID_SI_540, ATA_66, 0},
> - { "SiS530", PCI_DEVICE_ID_SI_530, ATA_66, 0},
> - { "SiS5600", PCI_DEVICE_ID_SI_5600, ATA_33, 0},
> - { "SiS5598", PCI_DEVICE_ID_SI_5598, ATA_33, 0},
> - { "SiS5597", PCI_DEVICE_ID_SI_5597, ATA_33, 0},
> - { "SiS5591", PCI_DEVICE_ID_SI_5591, ATA_33, 0},
> - { "SiS5513", PCI_DEVICE_ID_SI_5513, ATA_16, 0},
> - { "SiS5511", PCI_DEVICE_ID_SI_5511, ATA_16, 0},
> + { "SiS735", PCI_DEVICE_ID_SI_735, ATA_100 },
> + { "SiS733", PCI_DEVICE_ID_SI_733, ATA_100 },
> + { "SiS635", PCI_DEVICE_ID_SI_635, ATA_100 },
> + { "SiS633", PCI_DEVICE_ID_SI_633, ATA_100 },
> +
> + { "SiS730", PCI_DEVICE_ID_SI_730, ATA_100a },
> + { "SiS550", PCI_DEVICE_ID_SI_550, ATA_100a },
> +
> + { "SiS640", PCI_DEVICE_ID_SI_640, ATA_66 },
> + { "SiS630", PCI_DEVICE_ID_SI_630, ATA_66 },
> + { "SiS620", PCI_DEVICE_ID_SI_620, ATA_66 },
> + { "SiS540", PCI_DEVICE_ID_SI_540, ATA_66 },
> + { "SiS530", PCI_DEVICE_ID_SI_530, ATA_66 },
> +
> + { "SiS5600", PCI_DEVICE_ID_SI_5600, ATA_33 },
> + { "SiS5598", PCI_DEVICE_ID_SI_5598, ATA_33 },
> + { "SiS5597", PCI_DEVICE_ID_SI_5597, ATA_33 },
> + { "SiS5591/2", PCI_DEVICE_ID_SI_5591, ATA_33 },
> + { "SiS5582", PCI_DEVICE_ID_SI_5582, ATA_33 },
> + { "SiS5581", PCI_DEVICE_ID_SI_5581, ATA_33 },
> +
> + { "SiS5596", PCI_DEVICE_ID_SI_5596, ATA_16 },
> + { "SiS5571", PCI_DEVICE_ID_SI_5571, ATA_16 },
> + { "SiS551x", PCI_DEVICE_ID_SI_5511, ATA_16 },
> };
>
> /* Cycle time bits and values vary across chip dma capabilities
> These three arrays hold the register layout and the values to set.
> Indexed by chipset_family and (dma_mode - XFER_UDMA_0) */
>
> -/* {ATA_00, ATA_16, ATA_33, ATA_66, ATA_100a, ATA_100, ATA_133} */
> +/* {0, ATA_16, ATA_33, ATA_66, ATA_100a, ATA_100, ATA_133} */
> static u8 cycle_time_offset[] = {0,0,5,4,4,0,0};
> static u8 cycle_time_range[] = {0,0,2,3,3,4,4};
> static u8 cycle_time_value[][XFER_UDMA_6 - XFER_UDMA_0 + 1] = {
> @@ -249,8 +176,6 @@
> {40,12,4,12,5,34,12,5},
> };
>
> -static struct pci_dev *host_dev = NULL;
> -
> /*
> * Printing configuration
> */
> @@ -334,6 +259,7 @@
> }
> pci_read_config_dword(bmide_dev, (unsigned long)drive_pci+4*pos, ®dw0);
> pci_read_config_dword(bmide_dev, (unsigned long)drive_pci+4*pos+8, ®dw1);
> +
> p += sprintf(p, "Drive %d:\n", pos);
> }
>
> @@ -372,11 +298,12 @@
> p += sprintf(p, "\n");
> }
>
> - if (chipset_family < ATA_133) { /* else case TODO */
> +
> + if (chipset_family < ATA_133) { /* else case TODO */
> +
> /* Data Active */
> p += sprintf(p, " Data Active Time ");
> switch(chipset_family) {
> - case ATA_00:
> case ATA_16: /* confirmed */
> case ATA_33:
> case ATA_66:
> @@ -387,7 +314,6 @@
> }
> p += sprintf(p, " \t Data Active Time ");
> switch(chipset_family) {
> - case ATA_00:
> case ATA_16:
> case ATA_33:
> case ATA_66:
> @@ -493,39 +419,16 @@
>
> len = (p - buffer) - offset;
> *addr = buffer + offset;
> -
> +
> return len > count ? count : len;
> }
> #endif /* defined(DISPLAY_SIS_TIMINGS) && defined(CONFIG_PROC_FS) */
>
> static u8 sis5513_ratemask (ide_drive_t *drive)
> {
> -#if 0
> u8 rates[] = { 0, 0, 1, 2, 3, 3, 4, 4 };
> u8 mode = rates[chipset_family];
> -#else
> - u8 mode;
>
> - switch(chipset_family) {
> - case ATA_133:
> - case ATA_133a:
> - mode = 4;
> - break;
> - case ATA_100:
> - case ATA_100a:
> - mode = 3;
> - break;
> - case ATA_66:
> - mode = 2;
> - break;
> - case ATA_33:
> - return 1;
> - case ATA_16:
> - case ATA_00:
> - default:
> - return 0;
> - }
> -#endif
> if (!eighty_ninty_three(drive))
> mode = min(mode, (u8)1);
> return mode;
> @@ -543,20 +446,12 @@
> u8 reg4bh = 0;
> u8 rw_prefetch = (0x11 << drive->dn);
>
> -#ifdef DEBUG
> - printk("SIS5513: config_drive_art_rwp, drive %d\n", drive->dn);
> - sis5513_load_verify_registers(dev, "config_drive_art_rwp start");
> -#endif
> -
> if (drive->media != ide_disk)
> return;
> pci_read_config_byte(dev, 0x4b, ®4bh);
>
> if ((reg4bh & rw_prefetch) != rw_prefetch)
> pci_write_config_byte(dev, 0x4b, reg4bh|rw_prefetch);
> -#ifdef DEBUG
> - sis5513_load_verify_registers(dev, "config_drive_art_rwp end");
> -#endif
> }
>
>
> @@ -571,10 +466,6 @@
> u16 eide_pio_timing[6] = {600, 390, 240, 180, 120, 90};
> u16 xfer_pio = drive->id->eide_pio_modes;
>
> -#ifdef DEBUG
> - sis5513_load_verify_registers(dev, "config_drive_art_rwp_pio start");
> -#endif
> -
> config_drive_art_rwp(drive);
> pio = ide_get_best_pio_mode(drive, 255, pio, NULL);
>
> @@ -594,12 +485,6 @@
>
> timing = (xfer_pio >= pio) ? xfer_pio : pio;
>
> -#ifdef DEBUG
> - printk("SIS5513: config_drive_art_rwp_pio, "
> - "drive %d, pio %d, timing %d\n",
> - drive->dn, pio, timing);
> -#endif
> -
> /* In pre ATA_133 case, drives sit at 0x40 + 4*drive->dn */
> drive_pci = 0x40;
> /* In SiS962 case drives sit at (0x40 or 0x70) + 8*drive->dn) */
> @@ -645,41 +530,24 @@
> pci_read_config_dword(dev, drive_pci, &test3);
> test3 &= 0xc0c00fff;
> if (test3 & 0x08) {
> - test3 |= (unsigned long)ini_time_value[ATA_133-ATA_00][timing] << 12;
> - test3 |= (unsigned long)act_time_value[ATA_133-ATA_00][timing] << 16;
> - test3 |= (unsigned long)rco_time_value[ATA_133-ATA_00][timing] << 24;
> + test3 |= (unsigned long)ini_time_value[ATA_133][timing] << 12;
> + test3 |= (unsigned long)act_time_value[ATA_133][timing] << 16;
> + test3 |= (unsigned long)rco_time_value[ATA_133][timing] << 24;
> } else {
> - test3 |= (unsigned long)ini_time_value[ATA_100-ATA_00][timing] << 12;
> - test3 |= (unsigned long)act_time_value[ATA_100-ATA_00][timing] << 16;
> - test3 |= (unsigned long)rco_time_value[ATA_100-ATA_00][timing] << 24;
> + test3 |= (unsigned long)ini_time_value[ATA_100][timing] << 12;
> + test3 |= (unsigned long)act_time_value[ATA_100][timing] << 16;
> + test3 |= (unsigned long)rco_time_value[ATA_100][timing] << 24;
> }
> pci_write_config_dword(dev, drive_pci, test3);
> }
> -
> -#ifdef DEBUG
> - sis5513_load_verify_registers(dev, "config_drive_art_rwp_pio start");
> -#endif
> }
>
> static int config_chipset_for_pio (ide_drive_t *drive, u8 pio)
> {
> -#if 0
> + if (pio == 255)
> + pio = ide_find_best_mode(drive, XFER_PIO | XFER_EPIO) - XFER_PIO_0;
> config_art_rwp_pio(drive, pio);
> - return ide_config_drive_speed(drive, (XFER_PIO_0 + pio));
> -#else
> - u8 speed;
> -
> - switch(pio) {
> - case 4: speed = XFER_PIO_4; break;
> - case 3: speed = XFER_PIO_3; break;
> - case 2: speed = XFER_PIO_2; break;
> - case 1: speed = XFER_PIO_1; break;
> - default: speed = XFER_PIO_0; break;
> - }
> -
> - config_art_rwp_pio(drive, pio);
> - return ide_config_drive_speed(drive, speed);
> -#endif
> + return ide_config_drive_speed(drive, XFER_PIO_0 + min_t(u8, pio, 4));
> }
>
> static int sis5513_tune_chipset (ide_drive_t *drive, u8 xferspeed)
> @@ -690,24 +558,8 @@
> u8 drive_pci, reg, speed;
> u32 regdw;
>
> -#ifdef DEBUG
> - sis5513_load_verify_registers(dev, "sis5513_tune_chipset start");
> -#endif
> -
> -#ifdef BROKEN_LEVEL
> -#ifdef DEBUG
> - printk("SIS5513: BROKEN_LEVEL activated, speed=%d -> speed=%d\n", xferspeed, BROKEN_LEVEL);
> -#endif
> - if (xferspeed > BROKEN_LEVEL) xferspeed = BROKEN_LEVEL;
> -#endif
> -
> speed = ide_rate_filter(sis5513_ratemask(drive), xferspeed);
>
> -#ifdef DEBUG
> - printk("SIS5513: sis5513_tune_chipset, drive %d, speed %d\n",
> - drive->dn, xferspeed);
> -#endif
> -
> /* See config_art_rwp_pio for drive pci config registers */
> drive_pci = 0x40;
> if (chipset_family >= ATA_133) {
> @@ -746,14 +598,14 @@
> regdw &= 0xfffff00f;
> /* check if ATA133 enable */
> if (regdw & 0x08) {
> - regdw |= (unsigned long)cycle_time_value[ATA_133-ATA_00][speed-XFER_UDMA_0] << 4;
> - regdw |= (unsigned long)cvs_time_value[ATA_133-ATA_00][speed-XFER_UDMA_0] << 8;
> + regdw |= (unsigned long)cycle_time_value[ATA_133][speed-XFER_UDMA_0] << 4;
> + regdw |= (unsigned long)cvs_time_value[ATA_133][speed-XFER_UDMA_0] << 8;
> } else {
> /* if ATA133 disable, we should not set speed above UDMA5 */
> if (speed > XFER_UDMA_5)
> speed = XFER_UDMA_5;
> - regdw |= (unsigned long)cycle_time_value[ATA_100-ATA_00][speed-XFER_UDMA_0] << 4;
> - regdw |= (unsigned long)cvs_time_value[ATA_100-ATA_00][speed-XFER_UDMA_0] << 8;
> + regdw |= (unsigned long)cycle_time_value[ATA_100][speed-XFER_UDMA_0] << 4;
> + regdw |= (unsigned long)cvs_time_value[ATA_100][speed-XFER_UDMA_0] << 8;
> }
> pci_write_config_dword(dev, (unsigned long)drive_pci, regdw);
> } else {
> @@ -763,7 +615,7 @@
> reg &= ~((0xFF >> (8 - cycle_time_range[chipset_family]))
> << cycle_time_offset[chipset_family]);
> /* set reg cycle time bits */
> - reg |= cycle_time_value[chipset_family-ATA_00][speed-XFER_UDMA_0]
> + reg |= cycle_time_value[chipset_family][speed-XFER_UDMA_0]
> << cycle_time_offset[chipset_family];
> pci_write_config_byte(dev, drive_pci+1, reg);
> }
> @@ -782,9 +634,7 @@
> case XFER_PIO_0:
> default: return((int) config_chipset_for_pio(drive, 0));
> }
> -#ifdef DEBUG
> - sis5513_load_verify_registers(dev, "sis5513_tune_chipset end");
> -#endif
> +
> return ((int) ide_config_drive_speed(drive, speed));
> }
>
> @@ -863,18 +713,34 @@
> return sis5513_config_drive_xfer_rate(drive);
> }
>
> -/* Helper function used at init time
> - * returns a PCI device revision ID
> - * (used to detect different IDE controller versions)
> - */
> -static u8 __init devfn_rev(int device, int function)
> +/*
> + Future simpler config_xfer_rate :
> + When ide_find_best_mode is made bad-drive aware
> + - remove config_drive_xfer_rate and config_chipset_for_dma,
> + - replace config_xfer_rate with the following
> +
> +static int sis5513_config_xfer_rate (ide_drive_t *drive)
> {
> - u8 revision;
> - /* Find device */
> - struct pci_dev* dev = pci_find_slot(0,PCI_DEVFN(device,function));
> - pci_read_config_byte(dev, PCI_REVISION_ID, &revision);
> - return revision;
> + u16 w80 = HWIF(drive)->udma_four;
> + u16 speed;
> +
> + config_drive_art_rwp(drive);
> + config_art_rwp_pio(drive, 5);
> +
> + speed = ide_find_best_mode(drive,
> + XFER_PIO | XFER_EPIO | XFER_SWDMA | XFER_MWDMA |
> + (chipset_family >= ATA_33 ? XFER_UDMA : 0) |
> + (w80 && chipset_family >= ATA_66 ? XFER_UDMA_66 : 0) |
> + (w80 && chipset_family >= ATA_100a ? XFER_UDMA_100 : 0) |
> + (w80 && chipset_family >= ATA_133a ? XFER_UDMA_133 : 0));
> +
> + sis5513_tune_chipset(drive, speed);
> +
> + if (drive->autodma && (speed & XFER_MODE) != XFER_PIO)
> + return HWIF(drive)->ide_dma_on(drive);
> + return HWIF(drive)->ide_dma_off_quietly(drive);
> }
> +*/
>
> /* Chip detection and general config */
> static unsigned int __init init_chipset_sis5513 (struct pci_dev *dev, const char *name)
> @@ -882,71 +748,86 @@
> struct pci_dev *host;
> int i = 0;
>
> - /* Find the chip */
> - for (i = 0; i < ARRAY_SIZE(SiSHostChipInfo) && !host_dev; i++) {
> - host = pci_find_device (PCI_VENDOR_ID_SI,
> - SiSHostChipInfo[i].host_id,
> - NULL);
> + chipset_family = 0;
> +
> + for (i = 0; i < ARRAY_SIZE(SiSHostChipInfo) && !chipset_family; i++) {
> +
> + host = pci_find_device(PCI_VENDOR_ID_SI, SiSHostChipInfo[i].host_id, NULL);
> +
> if (!host)
> continue;
>
> - host_dev = host;
> chipset_family = SiSHostChipInfo[i].chipset_family;
> +
> + /* Special case for SiS630 : 630S/ET is ATA_100a */
> + if (SiSHostChipInfo[i].host_id == PCI_DEVICE_ID_SI_630) {
> + u8 hostrev;
> + pci_read_config_byte(host, PCI_REVISION_ID, &hostrev);
> + if (hostrev >= 0x30)
> + chipset_family = ATA_100a;
> + }
>
> - /* check 100/133 chipset family */
> - if (chipset_family == ATA_133) {
> - u32 reg54h;
> - u16 devid;
> - pci_read_config_dword(dev, 0x54, ®54h);
> - /* SiS962 and above report 0x5518 dev id if high bit is cleared */
> - pci_write_config_dword(dev, 0x54, (reg54h & 0x7fffffff));
> - pci_read_config_word(dev, 0x02, &devid);
> - /* restore register 0x54 */
> - pci_write_config_dword(dev, 0x54, reg54h);
> -
> - /* devid 5518 here means SiS962 or later
> - which supports ATA133.
> - These are refered by chipset_family = ATA133
> - */
> - if (devid != 0x5518) {
> - u8 reg49h;
> - /* SiS961 family */
> - pci_read_config_byte(dev, 0x49, ®49h);
> - /* check isa bridge device rev id */
> - if (((devfn_rev(2,0) & 0xff) == 0x10) && (reg49h & 0x80))
> - chipset_family = ATA_133a;
> - else
> - chipset_family = ATA_100;
> + printk(KERN_INFO "SIS5513: %s %s controller\n",
> + SiSHostChipInfo[i].name, chipset_capability[chipset_family]);
> + }
> +
> + if (!chipset_family) { /* Belongs to pci-quirks */
> +
> + u32 idemisc;
> + u16 trueid;
> +
> + /* Disable ID masking and register remapping */
> + pci_read_config_dword(dev, 0x54, &idemisc);
> + pci_write_config_dword(dev, 0x54, (idemisc & 0x7fffffff));
> + pci_read_config_word(dev, PCI_DEVICE_ID, &trueid);
> + pci_write_config_dword(dev, 0x54, idemisc);
> +
> + if (trueid == 0x5518) {
> + printk(KERN_INFO "SIS5513: SiS 962/963 MuTIOL IDE UDMA133 controller\n");
> + chipset_family = ATA_133;
> }
> - }
> - printk(SiSHostChipInfo[i].name);
> - printk(" %s controller", chipset_capability[chipset_family]);
> - printk("\n");
> + }
>
> -#ifdef DEBUG
> - sis5513_print_registers(dev, "pci_init_sis5513 start");
> -#endif
> + if (!chipset_family) { /* Belongs to pci-quirks */
>
> - if (SiSHostChipInfo[i].flags & SIS5513_LATENCY) {
> - u8 latency = (chipset_family == ATA_100)? 0x80 : 0x10; /* Lacking specs */
> - pci_write_config_byte(dev, PCI_LATENCY_TIMER, latency);
> - }
> + struct pci_dev *lpc_bridge;
> + u16 trueid;
> + u8 prefctl;
> + u8 idecfg;
> + u8 sbrev;
> +
> + pci_read_config_byte(dev, 0x4a, &idecfg);
> + pci_write_config_byte(dev, 0x4a, idecfg | 0x10);
> + pci_read_config_word(dev, PCI_DEVICE_ID, &trueid);
> + pci_write_config_byte(dev, 0x4a, idecfg);
> +
> + if (trueid == 0x5517) { /* SiS 961/961B */
> +
> + lpc_bridge = pci_find_slot(0x00, 0x10); /* Bus 0, Dev 2, Fn 0 */
> + pci_read_config_byte(lpc_bridge, PCI_REVISION_ID, &sbrev);
> + pci_read_config_byte(dev, 0x49, &prefctl);
>
> - /* Special case for SiS630 : 630S/ET is ATA_100a */
> - if (SiSHostChipInfo[i].host_id == PCI_DEVICE_ID_SI_630) {
> - /* check host device rev id */
> - if (devfn_rev(0,0) >= 0x30) {
> - chipset_family = ATA_100a;
> + if (sbrev == 0x10 && (prefctl & 0x80)) {
> + printk(KERN_INFO "SIS5513: SiS 961B MuTIOL IDE UDMA133 controller\n");
> + chipset_family = ATA_133a;
> + } else {
> + printk(KERN_INFO "SIS5513: SiS 961 MuTIOL IDE UDMA100 controller\n");
> + chipset_family = ATA_100;
> + }
> }
> - }
> }
>
> + if (!chipset_family)
> + return -1;
> +
> /* Make general config ops here
> 1/ tell IDE channels to operate in Compatibility mode only
> 2/ tell old chips to allow per drive IDE timings */
> - if (host_dev) {
> +
> + {
> u8 reg;
> u16 regw;
> +
> switch(chipset_family) {
> case ATA_133:
> /* SiS962 operation mode */
> @@ -959,6 +840,8 @@
> break;
> case ATA_133a:
> case ATA_100:
> + /* Fixup latency */
> + pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x80);
> /* Set compatibility bit */
> pci_read_config_byte(dev, 0x49, ®);
> if (!(reg & 0x01)) {
> @@ -967,6 +850,9 @@
> break;
> case ATA_100a:
> case ATA_66:
> + /* Fixup latency */
> + pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x10);
> +
> /* On ATA_66 chips the bit was elsewhere */
> pci_read_config_byte(dev, 0x52, ®);
> if (!(reg & 0x04)) {
> @@ -987,8 +873,6 @@
> pci_write_config_byte(dev, 0x52, reg|0x08);
> }
> break;
> - case ATA_00:
> - default: break;
> }
>
> #if defined(DISPLAY_SIS_TIMINGS) && defined(CONFIG_PROC_FS)
> @@ -999,9 +883,7 @@
> }
> #endif
> }
> -#ifdef DEBUG
> - sis5513_load_verify_registers(dev, "pci_init_sis5513 end");
> -#endif
> +
> return 0;
> }
>
> @@ -1044,7 +926,7 @@
> hwif->mwdma_mask = 0x07;
> hwif->swdma_mask = 0x07;
>
> - if (!host_dev)
> + if (!chipset_family)
> return;
>
> if (!(hwif->udma_four))
> @@ -1102,7 +984,7 @@
> module_init(sis5513_ide_init);
> module_exit(sis5513_ide_exit);
>
> -MODULE_AUTHOR("Lionel Bouton, L C Chang, Andre Hedrick");
> +MODULE_AUTHOR("Lionel Bouton, L C Chang, Andre Hedrick, Vojtech Pavlik");
> MODULE_DESCRIPTION("PCI driver module for SIS IDE");
> MODULE_LICENSE("GPL");
>
> @@ -1110,13 +992,10 @@
>
> /*
> * TODO:
> - * - Get ridden of SisHostChipInfo[] completness dependancy.
> - * - Study drivers/ide/ide-timing.h.
> - * - Are there pre-ATA_16 SiS5513 chips ? -> tune init code for them
> - * or remove ATA_00 define
> + * - CLEANUP
> + * - Use drivers/ide/ide-timing.h !
> * - More checks in the config registers (force values instead of
> * relying on the BIOS setting them correctly).
> * - Further optimisations ?
> * . for example ATA66+ regs 0x48 & 0x4A
> */
> -
> diff -urN -X dontdiff --exclude=tmp_include_depends linux-2.4.21-ac1/include/linux/pci_ids.h linux-2.4.21-ac1-vojtech/include/linux/pci_ids.h
> --- linux-2.4.21-ac1/include/linux/pci_ids.h 2003-06-18 23:20:47.000000000 +0200
> +++ linux-2.4.21-ac1-vojtech/include/linux/pci_ids.h 2003-06-19 01:10:23.000000000 +0200
> @@ -493,6 +493,7 @@
> #define PCI_DEVICE_ID_SI_601 0x0601
> #define PCI_DEVICE_ID_SI_620 0x0620
> #define PCI_DEVICE_ID_SI_630 0x0630
> +#define PCI_DEVICE_ID_SI_633 0x0633
> #define PCI_DEVICE_ID_SI_635 0x0635
> #define PCI_DEVICE_ID_SI_640 0x0640
> #define PCI_DEVICE_ID_SI_645 0x0645
> @@ -503,6 +504,7 @@
> #define PCI_DEVICE_ID_SI_652 0x0652
> #define PCI_DEVICE_ID_SI_655 0x0655
> #define PCI_DEVICE_ID_SI_730 0x0730
> +#define PCI_DEVICE_ID_SI_733 0x0733
> #define PCI_DEVICE_ID_SI_630_VGA 0x6300
> #define PCI_DEVICE_ID_SI_730_VGA 0x7300
> #define PCI_DEVICE_ID_SI_735 0x0735
> @@ -520,7 +522,10 @@
> #define PCI_DEVICE_ID_SI_5513 0x5513
> #define PCI_DEVICE_ID_SI_5518 0x5518
> #define PCI_DEVICE_ID_SI_5571 0x5571
> +#define PCI_DEVICE_ID_SI_5581 0x5581
> +#define PCI_DEVICE_ID_SI_5582 0x5582
> #define PCI_DEVICE_ID_SI_5591 0x5591
> +#define PCI_DEVICE_ID_SI_5596 0x5596
> #define PCI_DEVICE_ID_SI_5597 0x5597
> #define PCI_DEVICE_ID_SI_5598 0x5598
> #define PCI_DEVICE_ID_SI_5600 0x5600
-- Vojtech Pavlik SuSE Labs, SuSE CR - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/