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-rw-r--r--src/southbridge/via/vt8235/vt8235.c57
-rw-r--r--src/southbridge/via/vt8235/vt8235.h4
-rw-r--r--src/southbridge/via/vt8235/vt8235_ide.c4
-rw-r--r--src/southbridge/via/vt8235/vt8235_lpc.c107
-rw-r--r--src/southbridge/via/vt8235/vt8235_usb.c7
5 files changed, 116 insertions, 63 deletions
diff --git a/src/southbridge/via/vt8235/vt8235.c b/src/southbridge/via/vt8235/vt8235.c
index ea649a418c..e6287ece9c 100644
--- a/src/southbridge/via/vt8235/vt8235.c
+++ b/src/southbridge/via/vt8235/vt8235.c
@@ -10,7 +10,7 @@
/*
* Base VT8235.
*/
-static device_t lpc_dev;
+static int enabled = 0;
void hard_reset(void)
{
@@ -22,18 +22,15 @@ static void keyboard_on(struct device *dev)
unsigned char regval;
regval = pci_read_config8(dev, 0x51);
-// regval |= 0x0f;
- /* !!!FIX let's try this */
- regval |= 0x1d;
+ regval |= 0x05;
+ regval &= 0xfd;
pci_write_config8(dev, 0x51, regval);
init_pc_keyboard(0x60, 0x64, 0);
}
-void dump_south(void)
+void dump_south(device_t dev0)
{
- device_t dev0;
- dev0 = dev_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, 0);
int i,j;
for(i = 0; i < 256; i += 16) {
@@ -45,23 +42,53 @@ void dump_south(void)
}
}
-void set_led(struct device *dev)
+void set_led()
{
// set power led to steady now that lxbios has virtually done its job
+ device_t dev;
+ dev = dev_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, 0);
pci_write_config8(dev, 0x94, 0xb0);
}
+
static void vt8235_enable(struct device *dev)
{
struct southbridge_via_vt8235_config *conf = dev->chip_info;
+ unsigned char regval;
+ unsigned short vendor,model;
+
+
+ vendor = pci_read_config16(dev,0);
+ model = pci_read_config16(dev,0x2);
+
+ printk_debug("In vt8235_enable %04x %04x.\n",vendor,model);
+
+ /* if this is not the southbridge itself just return */
+ /* this is necessary because USB devices are slot 10, whereas this device is slot 11
+ therefore usb devices get called first during the bus scan */
+
+ if( (vendor != PCI_VENDOR_ID_VIA) || (model != PCI_DEVICE_ID_VIA_8235))
+ return;
+
+ printk_debug("Initialising Devices\n");
+
+
+ setup_i8259(); // make sure interupt controller is configured before keyboard init
+
+ /* enable RTC and ethernet */
+ regval = pci_read_config8(dev, 0x51);
+ regval |= 0x18;
+ pci_write_config8(dev, 0x51, regval);
+
+ /* turn on keyboard */
+ keyboard_on(dev);
+
+ /* enable USB 1.1 & USB 2.0 -redundant really since we've already been there - see note above*/
+ regval = pci_read_config8(dev, 0x50);
+ regval &= ~(0x36);
+ pci_write_config8(dev, 0x50, regval);
+
- printk_debug("In vt8235_enable.\n");
- if (!lpc_dev) {
- lpc_dev = dev_find_device(PCI_VENDOR_ID_VIA,
- PCI_DEVICE_ID_VIA_8235, 0);
- if (conf->enable_keyboard)
- keyboard_on(lpc_dev);
- }
}
struct chip_operations southbridge_via_vt8235_ops = {
diff --git a/src/southbridge/via/vt8235/vt8235.h b/src/southbridge/via/vt8235/vt8235.h
index c8e79fc480..f071371938 100644
--- a/src/southbridge/via/vt8235/vt8235.h
+++ b/src/southbridge/via/vt8235/vt8235.h
@@ -17,8 +17,8 @@
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
- * MA 02110-1301 USA
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
*/
/* winbond access routines and defines*/
diff --git a/src/southbridge/via/vt8235/vt8235_ide.c b/src/southbridge/via/vt8235/vt8235_ide.c
index 1775203ca8..fedda9c3be 100644
--- a/src/southbridge/via/vt8235/vt8235_ide.c
+++ b/src/southbridge/via/vt8235/vt8235_ide.c
@@ -13,7 +13,7 @@ static void ide_init(struct device *dev)
printk_info("Enabling VIA IDE.\n");
- if (!conf->enable_native_ide) {
+ /*if (!conf->enable_native_ide) { */
/*
* Run the IDE controller in 'compatiblity mode - i.e. don't
* use PCI interrupts. Using PCI ints confuses linux for some
@@ -28,7 +28,7 @@ static void ide_init(struct device *dev)
enables = pci_read_config8(dev, 0x42);
printk_debug("enables in reg 0x42 read back as 0x%x\n",
enables);
- }
+ /* } */
enables = pci_read_config8(dev, 0x40);
printk_debug("enables in reg 0x40 0x%x\n", enables);
diff --git a/src/southbridge/via/vt8235/vt8235_lpc.c b/src/southbridge/via/vt8235/vt8235_lpc.c
index 4a3c683f61..3e220940cd 100644
--- a/src/southbridge/via/vt8235/vt8235_lpc.c
+++ b/src/southbridge/via/vt8235/vt8235_lpc.c
@@ -10,21 +10,30 @@
#include "vt8235.h"
#include "chip.h"
-/*
- * Taken some liberties - changed irq structures to pins numbers so that it is
- * easier to change PCI irq assignments without having to change each PCI
- * function individually
- *
- * pciIrqs contains the irqs assigned for PCI pins A-D
- *
- * Setting will depend on motherboard as irqs can be quite scarce e.g on
- * EPIA-MII, 16 bit CF card wants a dedicated IRQ. A 16 bit card in pcmcia
- * socket may want another - for now only claim 3 interupts for PCI, leaving at
- * least one spare for CF. On EPIA-M one could allocated all four irqs to
- * different numbers since there are no cardbus devices
- */
-
-static const unsigned char pciIrqs[4] = { 11 , 5, 10 , 12 };
+/* The epia-m is really short on interrupts available, so PCI interupts A & D are ganged togther and so are B & C.
+ This is how the Award bios sets it up too.
+ epia can be more generous as it does not need to reserve interrupts for cardbus devices, but if changed then
+ make sure that ACPI dsdt is changed to suit.
+
+ IRQ 0 = timer
+ IRQ 1 = keyboard
+ IRQ 2 = cascade
+ IRQ 3 = COM 2
+ IRQ 4 = COM 1
+ IRQ 5 = available for PCI interrupts
+ IRQ 6 = floppy or availbale for PCI if floppy controller disabled
+ IRQ 7 = LPT or available if LPT port disabled
+ IRQ 8 = rtc
+ IRQ 9 = available for PCI interrupts
+ IRQ 10 = cardbus slot or available for PCI if no cardbus (ie epia)
+ IRQ 11 = cardbus slot or available for PCI if no cardbus (ie epia)
+ IRQ 12 = PS2 mouse (hardwired to 12)
+ IRQ 13 = legacy FPU interrupt
+ IRQ 14 = IDE controller 1
+ IRQ 15 = IDE controller 2
+
+*/
+static const unsigned char pciIrqs[4] = { 5 , 9 , 9, 5 };
static const unsigned char usbPins[4] = { 'A','B','C','D'};
static const unsigned char enetPins[4] = { 'A','B','C','D'};
@@ -32,14 +41,9 @@ static const unsigned char slotPins[4] = { 'B','C','D','A'};
static const unsigned char firewirePins[4] = { 'B','C','D','A'};
static const unsigned char vt8235Pins[4] = { 'A','B','C','D'};
static const unsigned char vgaPins[4] = { 'A','B','C','D'};
-static const unsigned char cbPins[4] = { 'A','B','C','D'};
+static const unsigned char cbPins[4] = { 'D','A','B','C'};
static const unsigned char riserPins[4] = { 'A','B','C','D'};
-/*
- Our IDSEL mappings are as follows
- PCI slot is AD31 (device 15) (00:14.0)
- Southbridge is AD28 (device 12) (00:11.0)
-*/
static unsigned char *pin_to_irq(const unsigned char *pin)
{
@@ -54,19 +58,12 @@ static unsigned char *pin_to_irq(const unsigned char *pin)
static void pci_routing_fixup(struct device *dev)
{
printk_info("%s: dev is %p\n", __FUNCTION__, dev);
- if (dev) {
- /* initialize PCI interupts - these assignments depend
- on the PCB routing of PINTA-D
-
- PINTA = IRQ11
- PINTB = IRQ5
- PINTC = IRQ10
- PINTD = IRQ12
- */
- pci_write_config8(dev, 0x55, pciIrqs[0] << 4);
- pci_write_config8(dev, 0x56, pciIrqs[1] | (pciIrqs[2] << 4) );
- pci_write_config8(dev, 0x57, pciIrqs[3] << 4);
- }
+
+ /* set up PCI IRQ routing */
+ pci_write_config8(dev, 0x55, pciIrqs[0] << 4);
+ pci_write_config8(dev, 0x56, pciIrqs[1] | (pciIrqs[2] << 4) );
+ pci_write_config8(dev, 0x57, pciIrqs[3] << 4);
+
// firewire built into southbridge
printk_info("setting firewire\n");
@@ -201,12 +198,6 @@ static void vt8235_init(struct device *dev)
// Set 0x58 to 0x03 to match Award
pci_write_config8(dev, 0x58, 0x03);
- // enable the ethernet/RTC
- if (dev) {
- enables = pci_read_config8(dev, 0x51);
- enables |= 0x18;
- pci_write_config8(dev, 0x51, enables);
- }
/* enable serial irq */
pci_write_config8(dev, 0x52, 0x9);
@@ -224,6 +215,36 @@ static void vt8235_init(struct device *dev)
rtc_init(0);
}
+/* total kludge to get lxb to call our childrens set/enable functions - these are not called unless this
+ device has a resource to set - so set a dummy one */
+void vt8235_read_resources(device_t dev)
+{
+
+ struct resource *resource;
+ pci_dev_read_resources(dev);
+ resource = new_resource(dev, 1);
+ resource->flags |= IORESOURCE_FIXED | IORESOURCE_ASSIGNED | IORESOURCE_IO | IORESOURCE_STORED;
+ resource->size = 2;
+ resource->base = 0x2e;
+
+}
+void vt8235_set_resources(device_t dev)
+{
+ struct resource *resource;
+ //resource = find_resource(dev,1);
+ //resource->flags |= IORESOURCE_STORED;
+ pci_dev_set_resources(dev);
+}
+
+void vt8235_enable_resources(device_t dev)
+{
+ /* vt8235 is not a pci bridge and has no resources of its own (other than standard PC i/o addresses)
+ however it does control the isa bus and so we need to manually call enable childrens resources on that bus */
+ pci_dev_enable_resources(dev);
+ enable_childrens_resources(dev);
+
+}
+
static void southbridge_init(struct device *dev)
{
vt8235_init(dev);
@@ -231,9 +252,9 @@ static void southbridge_init(struct device *dev)
}
static struct device_operations vt8235_lpc_ops = {
- .read_resources = pci_dev_read_resources,
- .set_resources = pci_dev_set_resources,
- .enable_resources = pci_dev_enable_resources,
+ .read_resources = vt8235_read_resources,
+ .set_resources = vt8235_set_resources,
+ .enable_resources = vt8235_enable_resources,
.init = &southbridge_init,
.scan_bus = scan_static_bus,
};
diff --git a/src/southbridge/via/vt8235/vt8235_usb.c b/src/southbridge/via/vt8235/vt8235_usb.c
index 24c6a17acb..8142c535da 100644
--- a/src/southbridge/via/vt8235/vt8235_usb.c
+++ b/src/southbridge/via/vt8235/vt8235_usb.c
@@ -5,11 +5,14 @@
#include <device/pci_ids.h>
#include "vt8235.h"
+/* really nothing to do here, both usb 1.1 & 2.0 are normal PCI devices and so get resources allocated
+ properly. They are part of the southbridge and are enabled in the chip enable function for the southbridge */
+
static void usb_init(struct device *dev)
{
printk_debug("Configuring VIA USB 1.1\n");
- pci_write_config8(dev, 0x04, 0x07);
+ /* pci_write_config8(dev, 0x04, 0x07); */
/*
* To disable; though do we need to do this?
@@ -25,6 +28,7 @@ static void usb_init(struct device *dev)
*/
}
+/*
static struct device_operations usb_ops = {
.read_resources = pci_dev_read_resources,
.set_resources = pci_dev_set_resources,
@@ -39,3 +43,4 @@ static struct pci_driver northbridge_driver __pci_driver = {
.vendor = PCI_VENDOR_ID_VIA,
.device = PCI_DEVICE_ID_VIA_82C586_2,
};
+*/ \ No newline at end of file
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 20:52:54 +0000