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Subject[PATCH] Merge the changes from siimage 2.4.22-pre9 to 2.6.0-test2
Date
Hi,

I don't know if anyone is working on this, but I merged the changes from
siimage 1.06 present in 2.4.x to 2.6.0-test2. I'm really not very familiar
with the IDE code, so it's probably a good idea if someone could take a look
at it. All I can tell is it's working with the SiI3112A present in my
motherboard and it's a lot more stable than before.

I also added the suggestion from Andre to make the driver not care about cable
detection and found a possible bug in the 2.4.x code.

In 2.4.22-pre9:

if (!is_sata(hwif))
      hwif->atapi_dma = 1;
and DMA is not enabled by default.

I think it should be:

if (is_sata(hwif))
      hwif->atapi_dma = 1;
With this DMA is enabled by default on my board and works great.

Marcelo Penna Guerra
--- siimage.c 2003-07-31 14:38:41.622747984 -0300
+++ siimage.c.novo 2003-07-31 14:38:34.102891176 -0300
@@ -1,7 +1,24 @@
/*
- * linux/drivers/ide/pci/siimage.c Version 1.02 Jan 30, 2003
+ * linux/drivers/ide/pci/siimage.c Version 1.06 June 11, 2003
*
* Copyright (C) 2001-2002 Andre Hedrick <andre@linux-ide.org>
+ * Copyright (C) 2003 Red Hat <alan@redhat.com>
+ *
+ * May be copied or modified under the terms of the GNU General Public License
+ *
+ * Documentation available under NDA only
+ *
+ *
+ * FAQ Items:
+ * If you are using Marvell SATA-IDE adapters with Maxtor drives
+ * ensure the system is set up for ATA100/UDMA5 not UDMA6.
+ *
+ * If you are using WD drives with SATA bridges you must set the
+ * drive to "Single". "Master" will hang
+ *
+ * If you have strange problems with nVidia chipset systems please
+ * see the SI support documentation and update your system BIOS
+ * if neccessary
*/

#include <linux/config.h>
@@ -27,12 +44,101 @@
static struct pci_dev *siimage_devs[SIIMAGE_MAX_DEVS];
static int n_siimage_devs;

+/**
+ * pdev_is_sata - check if device is SATA
+ * @pdev: PCI device to check
+ *
+ * Returns true if this is a SATA controller
+ */
+
+static int pdev_is_sata(struct pci_dev *pdev)
+{
+ switch(pdev->device)
+ {
+ case PCI_DEVICE_ID_SII_3112:
+ case PCI_DEVICE_ID_SII_1210SA:
+ return 1;
+ case PCI_DEVICE_ID_SII_680:
+ return 0;
+ }
+ BUG();
+}
+
+/**
+ * is_sata - check if hwif is SATA
+ * @hwif: interface to check
+ *
+ * Returns true if this is a SATA controller
+ */
+
+static inline int is_sata(ide_hwif_t *hwif)
+{
+ return pdev_is_sata(hwif->pci_dev);
+}
+
+/**
+ * siimage_selreg - return register base
+ * @hwif: interface
+ * @r: config offset
+ *
+ * Turn a config register offset into the right address in either
+ * PCI space or MMIO space to access the control register in question
+ * Thankfully this is a configuration operation so isnt performance
+ * criticial.
+ */
+
+static unsigned long siimage_selreg(ide_hwif_t *hwif, int r)
+{
+ unsigned long base = (unsigned long)hwif->hwif_data;
+ base += 0xA0 + r;
+ if(hwif->mmio)
+ base += (hwif->channel << 6);
+ else
+ base += (hwif->channel << 4);
+ return base;
+}
+
+/**
+ * siimage_seldev - return register base
+ * @hwif: interface
+ * @r: config offset
+ *
+ * Turn a config register offset into the right address in either
+ * PCI space or MMIO space to access the control register in question
+ * including accounting for the unit shift.
+ */
+
+static inline unsigned long siimage_seldev(ide_drive_t *drive, int r)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ unsigned long base = (unsigned long)hwif->hwif_data;
+ base += 0xA0 + r;
+ if(hwif->mmio)
+ base += (hwif->channel << 6);
+ else
+ base += (hwif->channel << 4);
+ base |= drive->select.b.unit << drive->select.b.unit;
+ return base;
+}
+
+/**
+ * print_siimage_get_info - print minimal proc information
+ * @buf: buffer to write into (kernel space)
+ * @dev: PCI device we are describing
+ * @index: Controller number
+ *
+ * Print the basic information for the state of the CMD680/SI3112
+ * channel. We don't actually dump a lot of information out for
+ * this controller although we could expand it if we needed.
+ */
+
static char * print_siimage_get_info (char *buf, struct pci_dev *dev, int index)
{
char *p = buf;
u8 mmio = (pci_get_drvdata(dev) != NULL) ? 1 : 0;
- unsigned long bmdma = (mmio) ? ((unsigned long) pci_get_drvdata(dev)) :
- (pci_resource_start(dev, 4));
+ unsigned long bmdma = pci_resource_start(dev, 4);
+ if(mmio)
+ bmdma = pci_resource_start(dev, 5);

p += sprintf(p, "\nController: %d\n", index);
p += sprintf(p, "SiI%x Chipset.\n", dev->device);
@@ -41,17 +147,20 @@
p += sprintf(p, "%s-DMA Base 0x%lx\n", (mmio)?"MMIO":"BM", bmdma);
p += sprintf(p, "%s-DMA Base 0x%lx\n", (mmio)?"MMIO":"BM", bmdma+8);

- p += sprintf(p, "--------------- Primary Channel "
- "---------------- Secondary Channel "
- "-------------\n");
- p += sprintf(p, "--------------- drive0 --------- drive1 "
- "-------- drive0 ---------- drive1 ------\n");
- p += sprintf(p, "PIO Mode: %s %s"
- " %s %s\n",
- "?", "?", "?", "?");
return (char *)p;
}

+/**
+ * siimage_get_info - proc callback
+ * @buffer: kernel buffer to complete
+ * @addr: written with base of data to return
+ * offset: seek offset
+ * count: bytes to fill in
+ *
+ * Called when the user reads data from the virtual file for this
+ * controller from /proc
+ */
+
static int siimage_get_info (char *buffer, char **addr, off_t offset, int count)
{
char *p = buffer;
@@ -77,41 +186,56 @@
ide_hwif_t *hwif = HWIF(drive);
u8 mode = 0, scsc = 0;

+ unsigned long base = (unsigned long) hwif->hwif_data;
+
if (hwif->mmio)
- scsc = hwif->INB(HWIFADDR(0x4A));
+ scsc = hwif->INB(base + 0x4A);
else
pci_read_config_byte(hwif->pci_dev, 0x8A, &scsc);

- switch(hwif->pci_dev->device) {
- case PCI_DEVICE_ID_SII_3112:
- return 4;
- case PCI_DEVICE_ID_SII_680:
- if ((scsc & 0x10) == 0x10) /* 133 */
- mode = 4;
- else if ((scsc & 0x30) == 0x00) /* 100 */
- mode = 3;
- else if ((scsc & 0x20) == 0x20) /* 66 eek */
- BUG(); // mode = 2;
- break;
- default: return 0;
+ if(is_sata(hwif))
+ {
+ drive->id->hw_config |= 0x6000;
+ if(strstr(drive->id->model, "Maxtor"))
+ return 3;
+ return 4;
}
+
+ if ((scsc & 0x30) == 0x10) /* 133 */
+ mode = 4;
+ else if ((scsc & 0x30) == 0x20) /* 2xPCI */
+ mode = 4;
+ else if ((scsc & 0x30) == 0x00) /* 100 */
+ mode = 3;
+ else /* Disabled ? */
+ BUG();
+
if (!eighty_ninty_three(drive))
mode = min(mode, (u8)1);
return mode;
}

+/**
+ * siimage_taskfile_timing - turn timing data to a mode
+ * @hwif: interface to query
+ *
+ * Read the timing data for the interface and return the
+ * mode that is being used.
+ */
+
static byte siimage_taskfile_timing (ide_hwif_t *hwif)
{
u16 timing = 0x328a;
-
+ unsigned long addr = siimage_selreg(hwif, 2);
if (hwif->mmio)
- timing = hwif->INW(SELADDR(2));
+ timing = hwif->INW(addr);
else
- pci_read_config_word(hwif->pci_dev, SELREG(2), &timing);
+ pci_read_config_word(hwif->pci_dev, addr, &timing);

switch (timing) {
case 0x10c1: return 4;
case 0x10c3: return 3;
+ case 0x1104:
case 0x1281: return 2;
case 0x2283: return 1;
case 0x328a:
@@ -122,31 +246,75 @@
static void siimage_tuneproc (ide_drive_t *drive, byte mode_wanted)
{
ide_hwif_t *hwif = HWIF(drive);
- struct pci_dev *dev = hwif->pci_dev;
- u16 speedt = 0;
- u8 unit = drive->select.b.unit;
-
- if (hwif->mmio)
- speedt = hwif->INW(SELADDR(0x04|(unit<<unit)));
- else
- pci_read_config_word(dev, SELADDR(0x04|(unit<<unit)), &speedt);
+ u32 speedt = 0;
+ u16 speedp = 0;
+ unsigned long addr = siimage_seldev(drive, 0x04);
+ unsigned long tfaddr = siimage_selreg(hwif, 0x02);

/* cheat for now and use the docs */
-// switch(siimage_taskfile_timing(hwif)) {
switch(mode_wanted) {
- case 4: speedt = 0x10c1; break;
- case 3: speedt = 0x10C3; break;
- case 2: speedt = 0x1104; break;
- case 1: speedt = 0x2283; break;
+ case 4:
+ speedp = 0x10c1;
+ speedt = 0x10c1;
+ break;
+ case 3:
+ speedp = 0x10C3;
+ speedt = 0x10C3;
+ break;
+ case 2:
+ speedp = 0x1104;
+ speedt = 0x1281;
+ break;
+ case 1:
+ speedp = 0x2283;
+ speedt = 0x1281;
+ break;
case 0:
- default: speedt = 0x328A; break;
+ default:
+ speedp = 0x328A;
+ speedt = 0x328A;
+ break;
}
if (hwif->mmio)
- hwif->OUTW(speedt, SELADDR(0x04|(unit<<unit)));
+ {
+ hwif->OUTW(speedt, addr);
+ hwif->OUTW(speedp, tfaddr);
+ /* Now set up IORDY */
+ if(mode_wanted == 3 || mode_wanted == 4)
+ hwif->OUTW(hwif->INW(tfaddr-2)|0x200, tfaddr-2);
+ else
+ hwif->OUTW(hwif->INW(tfaddr-2)&~0x200, tfaddr-2);
+ }
else
- pci_write_config_word(dev, SELADDR(0x04|(unit<<unit)), speedt);
+ {
+ pci_write_config_word(hwif->pci_dev, addr, speedp);
+ pci_write_config_word(hwif->pci_dev, tfaddr, speedt);
+ pci_read_config_word(hwif->pci_dev, tfaddr-2, &speedp);
+ speedp &= ~0x200;
+ /* Set IORDY for mode 3 or 4 */
+ if(mode_wanted == 3 || mode_wanted == 4)
+ speedp |= 0x200;
+ pci_write_config_word(hwif->pci_dev, tfaddr-2, speedp);
+ }
}

+/**
+ * config_siimage_chipset_for_pio - set drive timings
+ * @drive: drive to tune
+ * @speed we want
+ *
+ * Compute the best pio mode we can for a given device. Also honour
+ * the timings for the driver when dealing with mixed devices. Some
+ * of this is ugly but its all wrapped up here
+ *
+ * The SI680 can also do VDMA - we need to start using that
+ *
+ * FIXME: we use the BIOS channel timings to avoid driving the task
+ * files too fast at the disk. We need to compute the master/slave
+ * drive PIO mode properly so that we can up the speed on a hotplug
+ * system.
+ */
+
static void config_siimage_chipset_for_pio (ide_drive_t *drive, byte set_speed)
{
u8 channel_timings = siimage_taskfile_timing(HWIF(drive));
@@ -167,6 +335,16 @@
config_siimage_chipset_for_pio(drive, set_speed);
}

+/**
+ * siimage_tune_chipset - set controller timings
+ * @drive: Drive to set up
+ * @xferspeed: speed we want to achieve
+ *
+ * Tune the SII chipset for the desired mode. If we can't achieve
+ * the desired mode then tune for a lower one, but ultimately
+ * make the thing work.
+ */
+
static int siimage_tune_chipset (ide_drive_t *drive, byte xferspeed)
{
u8 ultra6[] = { 0x0F, 0x0B, 0x07, 0x05, 0x03, 0x02, 0x01 };
@@ -176,30 +354,32 @@
ide_hwif_t *hwif = HWIF(drive);
u16 ultra = 0, multi = 0;
u8 mode = 0, unit = drive->select.b.unit;
- u8 speed = ide_rate_filter(siimage_ratemask(drive), xferspeed);
+ u8 speed = ide_rate_filter(siimage_ratemask(drive), xferspeed);
+ unsigned long base = (unsigned long)hwif->hwif_data;
u8 scsc = 0, addr_mask = ((hwif->channel) ?
((hwif->mmio) ? 0xF4 : 0x84) :
((hwif->mmio) ? 0xB4 : 0x80));

+ unsigned long ma = siimage_seldev(drive, 0x08);
+ unsigned long ua = siimage_seldev(drive, 0x0C);
+
if (hwif->mmio) {
- scsc = hwif->INB(HWIFADDR(0x4A));
- mode = hwif->INB(HWIFADDR(addr_mask));
- multi = hwif->INW(SELADDR(0x08|(unit<<unit)));
- ultra = hwif->INW(SELADDR(0x0C|(unit<<unit)));
+ scsc = hwif->INB(base + 0x4A);
+ mode = hwif->INB(base + addr_mask);
+ multi = hwif->INW(ma);
+ ultra = hwif->INW(ua);
} else {
pci_read_config_byte(hwif->pci_dev, HWIFADDR(0x8A), &scsc);
pci_read_config_byte(hwif->pci_dev, addr_mask, &mode);
- pci_read_config_word(hwif->pci_dev,
- SELREG(0x08|(unit<<unit)), &multi);
- pci_read_config_word(hwif->pci_dev,
- SELREG(0x0C|(unit<<unit)), &ultra);
+ pci_read_config_word(hwif->pci_dev, ma, &multi);
+ pci_read_config_word(hwif->pci_dev, ua, &ultra);
}

mode &= ~((unit) ? 0x30 : 0x03);
ultra &= ~0x3F;
scsc = ((scsc & 0x30) == 0x00) ? 0 : 1;

- scsc = (hwif->pci_dev->device == PCI_DEVICE_ID_SII_3112) ? 1 : scsc;
+ scsc = is_sata(hwif) ? 1 : scsc;

switch(speed) {
case XFER_PIO_4:
@@ -235,20 +415,27 @@
}

if (hwif->mmio) {
- hwif->OUTB(mode, HWIFADDR(addr_mask));
- hwif->OUTW(multi, SELADDR(0x08|(unit<<unit)));
- hwif->OUTW(ultra, SELADDR(0x0C|(unit<<unit)));
+ hwif->OUTB(mode, base + addr_mask);
+ hwif->OUTW(multi, ma);
+ hwif->OUTW(ultra, ua);
} else {
pci_write_config_byte(hwif->pci_dev, addr_mask, mode);
- pci_write_config_word(hwif->pci_dev,
- SELREG(0x08|(unit<<unit)), multi);
- pci_write_config_word(hwif->pci_dev,
- SELREG(0x0C|(unit<<unit)), ultra);
+ pci_write_config_word(hwif->pci_dev, ma, multi);
+ pci_write_config_word(hwif->pci_dev, ua, ultra);
}

return (ide_config_drive_speed(drive, speed));
}

+/**
+ * config_chipset_for_dma - configure for DMA
+ * @drive: drive to configure
+ *
+ * Called by the IDE layer when it wants the timings set up.
+ * For the CMD680 we also need to set up the PIO timings and
+ * enable DMA.
+ */
+
static int config_chipset_for_dma (ide_drive_t *drive)
{
u8 speed = ide_dma_speed(drive, siimage_ratemask(drive));
@@ -267,6 +454,16 @@
return ide_dma_enable(drive);
}

+/**
+ * siimage_configure_drive_for_dma - set up for DMA transfers
+ * @drive: drive we are going to set up
+ *
+ * Set up the drive for DMA, tune the controller and drive as
+ * required. If the drive isn't suitable for DMA or we hit
+ * other problems then we will drop down to PIO and set up
+ * PIO appropriately
+ */
+
static int siimage_config_drive_for_dma (ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
@@ -316,18 +513,28 @@
{
ide_hwif_t *hwif = HWIF(drive);
u8 dma_altstat = 0;
+ unsigned long addr = siimage_selreg(hwif, 1);

/* return 1 if INTR asserted */
if ((hwif->INB(hwif->dma_status) & 4) == 4)
return 1;

/* return 1 if Device INTR asserted */
- pci_read_config_byte(hwif->pci_dev, SELREG(1), &dma_altstat);
+ pci_read_config_byte(hwif->pci_dev, addr, &dma_altstat);
if (dma_altstat & 8)
return 0; //return 1;
return 0;
}

+/**
+ * siimage_mmio_ide_dma_count - DMA bytes done
+ * @drive
+ *
+ * If we are doing VDMA the CMD680 requires a little bit
+ * of more careful handling and we have to read the counts
+ * off ourselves. For non VDMA life is normal.
+ */
+
static int siimage_mmio_ide_dma_count (ide_drive_t *drive)
{
#ifdef SIIMAGE_VIRTUAL_DMAPIO
@@ -335,9 +542,10 @@
ide_hwif_t *hwif = HWIF(drive);
u32 count = (rq->nr_sectors * SECTOR_SIZE);
u32 rcount = 0;
+ unsigned long addr = siimage_selreg(hwif, 0x1C);

- hwif->OUTL(count, SELADDR(0x1C));
- rcount = hwif->INL(SELADDR(0x1C));
+ hwif->OUTL(count, addr);
+ rcount = hwif->INL(addr);

printk("\n%s: count = %d, rcount = %d, nr_sectors = %lu\n",
drive->name, count, rcount, rq->nr_sectors);
@@ -346,13 +554,22 @@
return __ide_dma_count(drive);
}

-/* returns 1 if dma irq issued, 0 otherwise */
+/**
+ * siimage_mmio_ide_dma_test_irq - check we caused an IRQ
+ * @drive: drive we are testing
+ *
+ * Check if we caused an IDE DMA interrupt. We may also have caused
+ * SATA status interrupts, if so we clean them up and continue.
+ */
+
static int siimage_mmio_ide_dma_test_irq (ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
+ unsigned long base = (unsigned long)hwif->hwif_data;
+ unsigned long addr = siimage_selreg(hwif, 0x1);

if (SATA_ERROR_REG) {
- u32 ext_stat = hwif->INL(HWIFADDR(0x10));
+ u32 ext_stat = hwif->INL(base + 0x10);
u8 watchdog = 0;
if (ext_stat & ((hwif->channel) ? 0x40 : 0x10)) {
u32 sata_error = hwif->INL(SATA_ERROR_REG);
@@ -379,7 +596,7 @@
return 1;

/* return 1 if Device INTR asserted */
- if ((hwif->INB(SELADDR(1)) & 8) == 8)
+ if ((hwif->INB(addr) & 8) == 8)
return 0; //return 1;

return 0;
@@ -388,9 +605,6 @@
static int siimage_mmio_ide_dma_verbose (ide_drive_t *drive)
{
int temp = __ide_dma_verbose(drive);
-#if 0
- drive->using_dma = 0;
-#endif
return temp;
}

@@ -398,11 +612,12 @@
{
ide_hwif_t *hwif = HWIF(drive);
u32 stat_config = 0;
+ unsigned long addr = siimage_selreg(hwif, 0);

if (hwif->mmio) {
- stat_config = hwif->INL(SELADDR(0));
+ stat_config = hwif->INL(addr);
} else
- pci_read_config_dword(hwif->pci_dev, SELREG(0), &stat_config);
+ pci_read_config_dword(hwif->pci_dev, addr, &stat_config);

switch (state) {
case BUSSTATE_ON:
@@ -424,6 +639,14 @@
return 0;
}

+/**
+ * siimage_reset_poll - wait for sata reset
+ * @drive: drive we are resetting
+ *
+ * Poll the SATA phy and see whether it has come back from the dead
+ * yet.
+ */
+
static int siimage_reset_poll (ide_drive_t *drive)
{
if (SATA_STATUS_REG) {
@@ -452,7 +675,8 @@
if (drive->media != ide_disk)
return;

- if (HWIF(drive)->pci_dev->device == PCI_DEVICE_ID_SII_3112) {
+ if (is_sata(HWIF(drive)))
+ {
drive->special.b.set_geometry = 0;
drive->special.b.recalibrate = 0;
}
@@ -462,19 +686,21 @@
{
ide_hwif_t *hwif = HWIF(drive);
u8 reset = 0;
+ unsigned long addr = siimage_selreg(hwif, 0);

if (hwif->mmio) {
- reset = hwif->INB(SELADDR(0));
- hwif->OUTB((reset|0x03), SELADDR(0));
+ reset = hwif->INB(addr);
+ hwif->OUTB((reset|0x03), addr);
+ /* FIXME:posting */
udelay(25);
- hwif->OUTB(reset, SELADDR(0));
- (void) hwif->INB(SELADDR(0));
+ hwif->OUTB(reset, addr);
+ (void) hwif->INB(addr);
} else {
- pci_read_config_byte(hwif->pci_dev, SELREG(0), &reset);
- pci_write_config_byte(hwif->pci_dev, SELREG(0), reset|0x03);
+ pci_read_config_byte(hwif->pci_dev, addr, &reset);
+ pci_write_config_byte(hwif->pci_dev, addr, reset|0x03);
udelay(25);
- pci_write_config_byte(hwif->pci_dev, SELREG(0), reset);
- pci_read_config_byte(hwif->pci_dev, SELREG(0), &reset);
+ pci_write_config_byte(hwif->pci_dev, addr, reset);
+ pci_read_config_byte(hwif->pci_dev, addr, &reset);
}

if (SATA_STATUS_REG) {
@@ -492,11 +718,11 @@

static void proc_reports_siimage (struct pci_dev *dev, u8 clocking, const char *name)
{
- if (dev->device == PCI_DEVICE_ID_SII_3112)
+ if(pdev_is_sata(dev))
goto sata_skip;

printk(KERN_INFO "%s: BASE CLOCK ", name);
- clocking &= ~0x0C;
+ clocking &= 0x03;
switch(clocking) {
case 0x03: printk("DISABLED !\n"); break;
case 0x02: printk("== 2X PCI \n"); break;
@@ -518,15 +744,25 @@
#endif /* DISPLAY_SIIMAGE_TIMINGS && CONFIG_PROC_FS */
}

+/**
+ * setup_mmio_siimage - switch an SI controller into MMIO
+ * @dev: PCI device we are configuring
+ * @name: device name
+ *
+ * Attempt to put the device into mmio mode. There are some slight
+ * complications here with certain systems where the mmio bar isnt
+ * mapped so we have to be sure we can fall back to I/O.
+ */
+
static unsigned int setup_mmio_siimage (struct pci_dev *dev, const char *name)
{
unsigned long bar5 = pci_resource_start(dev, 5);
- unsigned long end5 = pci_resource_end(dev, 5);
+ unsigned long barsize = pci_resource_len(dev, 5);
u8 tmpbyte = 0;
unsigned long addr;
void *ioaddr;

- ioaddr = ioremap_nocache(bar5, (end5 - bar5));
+ ioaddr = ioremap(bar5, barsize);

if (ioaddr == NULL)
return 0;
@@ -535,24 +771,23 @@
pci_set_drvdata(dev, ioaddr);
addr = (unsigned long) ioaddr;

- if (dev->device == PCI_DEVICE_ID_SII_3112) {
- writel(0, DEVADDR(0x148));
- writel(0, DEVADDR(0x1C8));
+ if (pdev_is_sata(dev)) {
+ writel(0, addr + 0x148);
+ writel(0, addr + 0x1C8);
}

- writeb(0, DEVADDR(0xB4));
- writeb(0, DEVADDR(0xF4));
- tmpbyte = readb(DEVADDR(0x4A));
+ writeb(0, addr + 0xB4);
+ writeb(0, addr + 0xF4);
+ tmpbyte = readb(addr + 0x4A);

switch(tmpbyte) {
case 0x01:
- writeb(tmpbyte|0x10, DEVADDR(0x4A));
- tmpbyte = readb(DEVADDR(0x4A));
+ /* In 100 MHz clocking, try and switch to 133 */
+ writeb(tmpbyte|0x10, addr + 0x4A);
case 0x31:
/* if clocking is disabled */
/* 133 clock attempt to force it on */
- writeb(tmpbyte & ~0x20, DEVADDR(0x4A));
- tmpbyte = readb(DEVADDR(0x4A));
+ writeb(tmpbyte & ~0x20, addr + 0x4A);
case 0x11:
case 0x21:
break;
@@ -562,31 +797,40 @@
writeb(tmpbyte, DEVADDR(0x4A));
break;
}
-
- writeb(0x72, DEVADDR(0xA1));
- writew(0x328A, DEVADDR(0xA2));
- writel(0x62DD62DD, DEVADDR(0xA4));
- writel(0x43924392, DEVADDR(0xA8));
- writel(0x40094009, DEVADDR(0xAC));
- writeb(0x72, DEVADDR(0xE1));
- writew(0x328A, DEVADDR(0xE2));
- writel(0x62DD62DD, DEVADDR(0xE4));
- writel(0x43924392, DEVADDR(0xE8));
- writel(0x40094009, DEVADDR(0xEC));
-
- if (dev->device == PCI_DEVICE_ID_SII_3112) {
- writel(0xFFFF0000, DEVADDR(0x108));
- writel(0xFFFF0000, DEVADDR(0x188));
- writel(0x00680000, DEVADDR(0x148));
- writel(0x00680000, DEVADDR(0x1C8));
+
+ writeb( 0x72, addr + 0xA1);
+ writew( 0x328A, addr + 0xA2);
+ writel(0x62DD62DD, addr + 0xA4);
+ writel(0x43924392, addr + 0xA8);
+ writel(0x40094009, addr + 0xAC);
+ writeb( 0x72, addr + 0xE1);
+ writew( 0x328A, addr + 0xE2);
+ writel(0x62DD62DD, addr + 0xE4);
+ writel(0x43924392, addr + 0xE8);
+ writel(0x40094009, addr + 0xEC);
+
+ if (pdev_is_sata(dev)) {
+ writel(0xFFFF0000, addr + 0x108);
+ writel(0xFFFF0000, addr + 0x188);
+ writel(0x00680000, addr + 0x148);
+ writel(0x00680000, addr + 0x1C8);
}

- tmpbyte = readb(DEVADDR(0x4A));
+ tmpbyte = readb(addr + 0x4A);

- proc_reports_siimage(dev, (tmpbyte>>=4), name);
+ proc_reports_siimage(dev, (tmpbyte>>4), name);
return 1;
}

+/**
+ * init_chipset_siimage - set up an SI device
+ * @dev: PCI device
+ * @name: device name
+ *
+ * Perform the initial PCI set up for this device. Attempt to switch
+ * to 133MHz clocking if the system isn't already set up to do it.
+ */
+
static unsigned int __init init_chipset_siimage (struct pci_dev *dev, const char *name)
{
u32 class_rev = 0;
@@ -631,115 +875,133 @@
break;
}

- pci_read_config_byte(dev, 0x8A, &tmpbyte);
- pci_write_config_byte(dev, 0xA1, 0x72);
- pci_write_config_word(dev, 0xA2, 0x328A);
+ pci_read_config_byte(dev, 0x8A, &tmpbyte);
+
+ pci_write_config_byte(dev, 0xA1, 0x72);
+ pci_write_config_word(dev, 0xA2, 0x328A);
pci_write_config_dword(dev, 0xA4, 0x62DD62DD);
pci_write_config_dword(dev, 0xA8, 0x43924392);
pci_write_config_dword(dev, 0xAC, 0x40094009);
- pci_write_config_byte(dev, 0xB1, 0x72);
- pci_write_config_word(dev, 0xB2, 0x328A);
+ pci_write_config_byte(dev, 0xB1, 0x72);
+ pci_write_config_word(dev, 0xB2, 0x328A);
pci_write_config_dword(dev, 0xB4, 0x62DD62DD);
pci_write_config_dword(dev, 0xB8, 0x43924392);
pci_write_config_dword(dev, 0xBC, 0x40094009);

pci_read_config_byte(dev, 0x8A, &tmpbyte);
- proc_reports_siimage(dev, (tmpbyte>>=4), name);
+ proc_reports_siimage(dev, (tmpbyte>>4), name);
return 0;
}

+/**
+ * init_mmio_iops_siimage - set up the iops for MMIO
+ * @hwif: interface to set up
+ *
+ * The basic setup here is fairly simple, we can use standard MMIO
+ * operations. However we do have to set the taskfile register offsets
+ * by hand as there isnt a standard defined layout for them this
+ * time.
+ *
+ * The hardware supports buffered taskfiles and also some rather nice
+ * extended PRD tables. Unfortunately right now we don't.
+ */
+
static void __init init_mmio_iops_siimage (ide_hwif_t *hwif)
{
struct pci_dev *dev = hwif->pci_dev;
- unsigned long addr = (unsigned long) pci_get_drvdata(hwif->pci_dev);
+ void *addr = pci_get_drvdata(dev);
u8 ch = hwif->channel;
-// u16 i = 0;
- hw_regs_t hw;
+ hw_regs_t hw;
+ unsigned long base;
+
+ /*
+ * Fill in the basic HWIF bits
+ */

default_hwif_mmiops(hwif);
+ hwif->hwif_data = addr;
+
+ /*
+ * Now set up the hw. We have to do this ourselves as
+ * the MMIO layout isnt the same as the the standard port
+ * based I/O
+ */
+
memset(&hw, 0, sizeof(hw_regs_t));
+ hw.priv = addr;

-#if 1
-#ifdef SIIMAGE_BUFFERED_TASKFILE
- hw.io_ports[IDE_DATA_OFFSET] = DEVADDR((ch) ? 0xD0 : 0x90);
- hw.io_ports[IDE_ERROR_OFFSET] = DEVADDR((ch) ? 0xD1 : 0x91);
- hw.io_ports[IDE_NSECTOR_OFFSET] = DEVADDR((ch) ? 0xD2 : 0x92);
- hw.io_ports[IDE_SECTOR_OFFSET] = DEVADDR((ch) ? 0xD3 : 0x93);
- hw.io_ports[IDE_LCYL_OFFSET] = DEVADDR((ch) ? 0xD4 : 0x94);
- hw.io_ports[IDE_HCYL_OFFSET] = DEVADDR((ch) ? 0xD5 : 0x95);
- hw.io_ports[IDE_SELECT_OFFSET] = DEVADDR((ch) ? 0xD6 : 0x96);
- hw.io_ports[IDE_STATUS_OFFSET] = DEVADDR((ch) ? 0xD7 : 0x97);
- hw.io_ports[IDE_CONTROL_OFFSET] = DEVADDR((ch) ? 0xDA : 0x9A);
-#else /* ! SIIMAGE_BUFFERED_TASKFILE */
- hw.io_ports[IDE_DATA_OFFSET] = DEVADDR((ch) ? 0xC0 : 0x80);
- hw.io_ports[IDE_ERROR_OFFSET] = DEVADDR((ch) ? 0xC1 : 0x81);
- hw.io_ports[IDE_NSECTOR_OFFSET] = DEVADDR((ch) ? 0xC2 : 0x82);
- hw.io_ports[IDE_SECTOR_OFFSET] = DEVADDR((ch) ? 0xC3 : 0x83);
- hw.io_ports[IDE_LCYL_OFFSET] = DEVADDR((ch) ? 0xC4 : 0x84);
- hw.io_ports[IDE_HCYL_OFFSET] = DEVADDR((ch) ? 0xC5 : 0x85);
- hw.io_ports[IDE_SELECT_OFFSET] = DEVADDR((ch) ? 0xC6 : 0x86);
- hw.io_ports[IDE_STATUS_OFFSET] = DEVADDR((ch) ? 0xC7 : 0x87);
- hw.io_ports[IDE_CONTROL_OFFSET] = DEVADDR((ch) ? 0xCA : 0x8A);
-#endif /* SIIMAGE_BUFFERED_TASKFILE */
-#else
-#ifdef SIIMAGE_BUFFERED_TASKFILE
- for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++)
- hw.io_ports[i] = DEVADDR((ch) ? 0xD0 : 0x90)|(i);
- hw.io_ports[IDE_CONTROL_OFFSET] = DEVADDR((ch) ? 0xDA : 0x9A);
-#else /* ! SIIMAGE_BUFFERED_TASKFILE */
- for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++)
- hw.io_ports[i] = DEVADDR((ch) ? 0xC0 : 0x80)|(i);
- hw.io_ports[IDE_CONTROL_OFFSET] = DEVADDR((ch) ? 0xCA : 0x8A);
-#endif /* SIIMAGE_BUFFERED_TASKFILE */
-#endif
+ base = (unsigned long)addr;
+ if(ch)
+ base += 0xC0;
+ else
+ base += 0x80;

-#if 0
- printk(KERN_DEBUG "%s: ", hwif->name);
- for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++)
- printk("0x%08x ", DEVADDR((ch) ? 0xC0 : 0x80)|(i));
- printk("0x%08x ", DEVADDR((ch) ? 0xCA : 0x8A)|(i));
-#endif
+ /*
+ * The buffered task file doesn't have status/control
+ * so we can't currently use it sanely since we want to
+ * use LBA48 mode.
+ */
+// base += 0x10;
+// hwif->addressing = 1;
+
+ hw.io_ports[IDE_DATA_OFFSET] = base;
+ hw.io_ports[IDE_ERROR_OFFSET] = base + 1;
+ hw.io_ports[IDE_NSECTOR_OFFSET] = base + 2;
+ hw.io_ports[IDE_SECTOR_OFFSET] = base + 3;
+ hw.io_ports[IDE_LCYL_OFFSET] = base + 4;
+ hw.io_ports[IDE_HCYL_OFFSET] = base + 5;
+ hw.io_ports[IDE_SELECT_OFFSET] = base + 6;
+ hw.io_ports[IDE_STATUS_OFFSET] = base + 7;
+ hw.io_ports[IDE_CONTROL_OFFSET] = base + 10;

hw.io_ports[IDE_IRQ_OFFSET] = 0;

- if (dev->device == PCI_DEVICE_ID_SII_3112) {
- hw.sata_scr[SATA_STATUS_OFFSET] = DEVADDR((ch) ? 0x184 : 0x104);
- hw.sata_scr[SATA_ERROR_OFFSET] = DEVADDR((ch) ? 0x188 : 0x108);
- hw.sata_scr[SATA_CONTROL_OFFSET]= DEVADDR((ch) ? 0x180 : 0x100);
- hw.sata_misc[SATA_MISC_OFFSET] = DEVADDR((ch) ? 0x1C0 : 0x140);
- hw.sata_misc[SATA_PHY_OFFSET] = DEVADDR((ch) ? 0x1C4 : 0x144);
- hw.sata_misc[SATA_IEN_OFFSET] = DEVADDR((ch) ? 0x1C8 : 0x148);
+ if (pdev_is_sata(dev)) {
+ base = (unsigned long) addr;
+ if(ch)
+ base += 0x80;
+ hw.sata_scr[SATA_STATUS_OFFSET] = base + 0x104;
+ hw.sata_scr[SATA_ERROR_OFFSET] = base + 0x108;
+ hw.sata_scr[SATA_CONTROL_OFFSET]= base + 0x100;
+ hw.sata_misc[SATA_MISC_OFFSET] = base + 0x140;
+ hw.sata_misc[SATA_PHY_OFFSET] = base + 0x144;
+ hw.sata_misc[SATA_IEN_OFFSET] = base + 0x148;
}

- hw.priv = (void *) addr;
-// hw.priv = pci_get_drvdata(hwif->pci_dev);
hw.irq = hwif->pci_dev->irq;

memcpy(&hwif->hw, &hw, sizeof(hw));
memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->hw.io_ports));

- if (hwif->pci_dev->device == PCI_DEVICE_ID_SII_3112) {
+ if (is_sata(hwif)) {
memcpy(hwif->sata_scr, hwif->hw.sata_scr, sizeof(hwif->hw.sata_scr));
memcpy(hwif->sata_misc, hwif->hw.sata_misc, sizeof(hwif->hw.sata_misc));
}

-#ifdef SIIMAGE_BUFFERED_TASKFILE
- hwif->addressing = 1;
-#endif /* SIIMAGE_BUFFERED_TASKFILE */
- hwif->irq = hw.irq;
- hwif->hwif_data = pci_get_drvdata(hwif->pci_dev);
+ base = (unsigned long) addr;

#ifdef SIIMAGE_LARGE_DMA
- hwif->dma_base = DEVADDR((ch) ? 0x18 : 0x10);
- hwif->dma_base2 = DEVADDR((ch) ? 0x08 : 0x00);
- hwif->dma_prdtable = (hwif->dma_base2 + 4);
+/* Watch the brackets - even Ken and Dennis get some language design wrong */
+ hwif->dma_base = base + (ch ? 0x18 : 0x10);
+ hwif->dma_base2 = base + (ch ? 0x08 : 0x00);
+ hwif->dma_prdtable = hwif->dma_base2 + 4;
#else /* ! SIIMAGE_LARGE_DMA */
- hwif->dma_base = DEVADDR((ch) ? 0x08 : 0x00);
- hwif->dma_base2 = DEVADDR((ch) ? 0x18 : 0x10);
+ hwif->dma_base = base + (ch ? 0x08 : 0x00);
+ hwif->dma_base2 = base + (ch ? 0x18 : 0x10);
#endif /* SIIMAGE_LARGE_DMA */
- hwif->mmio = 1;
+ hwif->mmio = 2;
}

+/**
+ * init_iops_siimage - set up iops
+ * @hwif: interface to set up
+ *
+ * Do the basic setup for the SIIMAGE hardware interface
+ * and then do the MMIO setup if we can. This is the first
+ * look in we get for setting up the hwif so that we
+ * can get the iops right before using them.
+ */
+
static void __init init_iops_siimage (ide_hwif_t *hwif)
{
struct pci_dev *dev = hwif->pci_dev;
@@ -748,26 +1010,46 @@
pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
class_rev &= 0xff;

+ hwif->hwif_data = 0;
+
hwif->rqsize = 128;
- if ((dev->device == PCI_DEVICE_ID_SII_3112) && (!(class_rev)))
- hwif->rqsize = 16;
+ if (is_sata(hwif))
+ hwif->rqsize = 15;

if (pci_get_drvdata(dev) == NULL)
return;
init_mmio_iops_siimage(hwif);
}

+/**
+ * ata66_siimage - check for 80 pin cable
+ * @hwif: interface to check
+ *
+ * Check for the presence of an ATA66 capable cable on the
+ * interface.
+ */
+
static unsigned int __init ata66_siimage (ide_hwif_t *hwif)
{
+ unsigned long addr = siimage_selreg(hwif, 0);
if (pci_get_drvdata(hwif->pci_dev) == NULL) {
u8 ata66 = 0;
- pci_read_config_byte(hwif->pci_dev, SELREG(0), &ata66);
+ pci_read_config_byte(hwif->pci_dev, addr, &ata66);
return (ata66 & 0x01) ? 1 : 0;
}

- return (hwif->INB(SELADDR(0)) & 0x01) ? 1 : 0;
+ return (hwif->INB(addr) & 0x01) ? 1 : 0;
}

+/**
+ * init_hwif_siimage - set up hwif structs
+ * @hwif: interface to set up
+ *
+ * We do the basic set up of the interface structure. The SIIMAGE
+ * requires several custom handlers so we override the default
+ * ide DMA handlers appropriately
+ */
+
static void __init init_hwif_siimage (ide_hwif_t *hwif)
{
hwif->autodma = 0;
@@ -788,7 +1070,7 @@
hwif->mwdma_mask = 0x07;
hwif->swdma_mask = 0x07;

- if (hwif->pci_dev->device != PCI_DEVICE_ID_SII_3112)
+ if(is_sata(hwif))
hwif->atapi_dma = 1;

hwif->ide_dma_check = &siimage_config_drive_for_dma;
@@ -802,12 +1084,25 @@
} else {
hwif->ide_dma_test_irq = & siimage_io_ide_dma_test_irq;
}
- if (!noautodma)
- hwif->autodma = 1;
+ /*
+ * The BIOS often doesn't set up DMA on this controller
+ * so we always do it.
+ */
+
+ hwif->autodma = 1;
hwif->drives[0].autodma = hwif->autodma;
hwif->drives[1].autodma = hwif->autodma;
}

+/**
+ * init_dma_siimage - set up IDE DMA
+ * @hwif: interface
+ * @dmabase: DMA base address to use
+ *
+ * For the SI chips this requires no special set up so we can just
+ * let the IDE DMA core do the usual work.
+ */
+
static void __init init_dma_siimage (ide_hwif_t *hwif, unsigned long dmabase)
{
ide_setup_dma(hwif, dmabase, 8);
@@ -815,6 +1110,14 @@

extern void ide_setup_pci_device(struct pci_dev *, ide_pci_device_t *);

+/**
+ * siimage_init_one - pci layer discovery entry
+ * @dev: PCI device
+ * @id: ident table entry
+ *
+ * Called by the PCI code when it finds an SI680 or SI3112 controller.
+ * We then use the IDE PCI generic helper to do most of the work.
+ */

static int __devinit siimage_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
@@ -829,6 +1132,7 @@
static struct pci_device_id siimage_pci_tbl[] __devinitdata = {
{ PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_SII_680, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{ PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_SII_3112, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
+ { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_SII_1210SA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
{ 0, },
};
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  Last update: 2005-03-22 13:47    [from the cache]
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