NEC PC-9800 subarchitecture support patch for 2.5.50-ac1 (16/21)
This is patch for IRQ number differences in pci drivers.
diffstat:
arch/i386/pci/irq.c | 27 +++++++++++++++++++++++++++
drivers/pcmcia/yenta.c | 6 ++++++
include/asm-i386/pci.h | 4 ++++
3 files changed, 37 insertions(+)
Regards,
Osamu Tomita
diff -urN linux/arch/i386/pci/irq.c linux98/arch/i386/pci/irq.c
--- linux/arch/i386/pci/irq.c Sat Oct 12 13:22:46 2002
+++ linux98/arch/i386/pci/irq.c Sat Oct 12 14:18:52 2002
@@ -5,6 +5,7 @@
*/
#include <linux/config.h>
+#include <linux/pci_ids.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/pci.h>
@@ -25,6 +26,7 @@
static struct irq_routing_table *pirq_table;
+#ifndef CONFIG_PC9800
/*
* Never use: 0, 1, 2 (timer, keyboard, and cascade)
* Avoid using: 13, 14 and 15 (FP error and IDE).
@@ -36,6 +38,20 @@
1000000, 1000000, 1000000, 1000, 1000, 0, 1000, 1000,
0, 0, 0, 0, 1000, 100000, 100000, 100000
};
+#else
+/*
+ * Never use: 0, 1, 2, 7 (timer, keyboard, CRT VSYNC and cascade)
+ * Avoid using: 8, 9 and 15 (FP error and IDE).
+ * Penalize: 4, 5, 11, 12, 13, 14 (known ISA uses: serial, floppy, sound, mouse
+ * and parallel)
+ */
+unsigned int pcibios_irq_mask = 0xff78;
+
+static int pirq_penalty[16] = {
+ 1000000, 1000000, 1000000, 0, 1000, 1000, 0, 1000000,
+ 100000, 100000, 0, 1000, 1000, 1000, 1000, 100000
+};
+#endif
struct irq_router {
char *name;
@@ -612,6 +628,17 @@
r->set(pirq_router_dev, dev, pirq, 11);
}
+#ifdef CONFIG_PC9800
+ if ((dev->class >> 8) == PCI_CLASS_BRIDGE_CARDBUS) {
+ if (pci_find_device(PCI_VENDOR_ID_INTEL,
+ PCI_DEVICE_ID_INTEL_82439TX, NULL) != NULL) {
+ if (mask & 0x0040) {
+ mask &= 0x0040; /* assign IRQ 6 only */
+ printk("pci-irq: Use IRQ6 for CardBus controller\n");
+ }
+ }
+ }
+#endif
/*
* Find the best IRQ to assign: use the one
* reported by the device if possible.
diff -urN linux/drivers/pcmcia/yenta.c linux98/drivers/pcmcia/yenta.c
--- linux/drivers/pcmcia/yenta.c Mon Nov 18 13:29:48 2002
+++ linux98/drivers/pcmcia/yenta.c Tue Nov 19 11:02:09 2002
@@ -8,6 +8,7 @@
* Dynamically adjust the size of the bridge resource
*
*/
+#include <linux/config.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/sched.h>
@@ -510,6 +511,7 @@
add_timer(&socket->poll_timer);
}
+#ifndef CONFIG_PC9800
/*
* Only probe "regular" interrupts, don't
* touch dangerous spots like the mouse irq,
@@ -520,6 +522,10 @@
* Default to 11, 10, 9, 7, 6, 5, 4, 3.
*/
static u32 isa_interrupts = 0x0ef8;
+#else
+/* Default to 12, 10, 6, 5, 3. */
+static u32 isa_interrupts = 0x1468;
+#endif
static unsigned int yenta_probe_irq(pci_socket_t *socket, u32 isa_irq_mask)
{
diff -urN linux/include/asm-i386/pci.h linux98/include/asm-i386/pci.h
--- linux/include/asm-i386/pci.h Sun Jun 9 14:29:24 2002
+++ linux98/include/asm-i386/pci.h Mon Jun 10 20:49:15 2002
@@ -17,7 +17,11 @@
#endif
extern unsigned long pci_mem_start;
+#ifndef CONFIG_PC9800
#define PCIBIOS_MIN_IO 0x1000
+#else
+#define PCIBIOS_MIN_IO 0x4000
+#endif
#define PCIBIOS_MIN_MEM (pci_mem_start)
void pcibios_config_init(void);
-
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/
This archive was generated by hypermail 2b29 : Sun Dec 15 2002 - 22:00:32 EST