Messages in this thread Patch in this message | | | Date | Mon, 24 Mar 2003 22:12:34 +0900 | From | Osamu Tomita <> | Subject | [PATCH 2.5.65-ac4] Complete support for PC-9800 sub-arch (7/9) PCI |
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This is the patch to support NEC PC-9800 subarchitecture against 2.5.65-ac4. (7/9)
Small changes for PCI support. Fix for difference of IRQ numbers and IO addresses.
Regards, Osamu Tomita
diff -Nru linux/arch/i386/pci/irq.c linux98/arch/i386/pci/irq.c --- linux/arch/i386/pci/irq.c 2002-10-12 13:22:46.000000000 +0900 +++ linux98/arch/i386/pci/irq.c 2002-10-12 14:18:52.000000000 +0900 @@ -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_X86_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_X86_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 -Nru linux/drivers/pcmcia/yenta.c linux98/drivers/pcmcia/yenta.c --- linux/drivers/pcmcia/yenta.c 2002-11-18 13:29:48.000000000 +0900 +++ linux98/drivers/pcmcia/yenta.c 2002-11-19 11:02:09.000000000 +0900 @@ -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_X86_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 -Nru linux/include/asm-i386/pci.h linux98/include/asm-i386/pci.h --- linux/include/asm-i386/pci.h 2002-06-09 14:29:24.000000000 +0900 +++ linux98/include/asm-i386/pci.h 2002-06-10 20:49:15.000000000 +0900 @@ -17,7 +17,11 @@ #endif extern unsigned long pci_mem_start; +#ifdef CONFIG_X86_PC9800 +#define PCIBIOS_MIN_IO 0x4000 +#else #define PCIBIOS_MIN_IO 0x1000 +#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/
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