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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4300 | trochtova | 1 | #include <unistd.h> |
| 2 | #include <ddi.h> |
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| 3 | #include <libarch/ddi.h> |
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| 4 | #include <stdio.h> |
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| 5 | |||
| 6 | #include "internal.h" |
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| 7 | |||
| 8 | /* physical addresses and offsets */ |
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| 9 | //#define U2P_BASE 0x1FE00000000 |
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| 10 | #define U2P_BASE 0x1c800000000 |
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| 11 | #define PCI_CONF_OFFSET 0x001000000 |
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| 12 | #define PCI_CONF_SIZE 0x001000000 |
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| 13 | #define PCI_CONF_BASE (U2P_BASE + PCI_CONF_OFFSET) |
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| 14 | |||
| 15 | /* virtual address of PCI configuration space */ |
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| 16 | static void *conf_addr = 0; |
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| 17 | |||
| 18 | /* |
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| 19 | * virtual address of specified PCI configuration register: |
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| 20 | * bus ... bus number (0 for top level PCI bus B, 1 for top level PCI bus A) |
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| 21 | * dev ... device number (0 - 31) |
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| 22 | * fn ... function number (0 - 7) |
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| 23 | * reg ... register number (register's position within PCI configuration header) |
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| 24 | **/ |
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| 25 | #define CONF_ADDR(bus, dev, fn, reg) ((void *)(conf_addr + ((bus << 16) | (dev << 11) | (fn << 8) | reg))) |
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| 26 | |||
| 27 | |||
| 28 | |||
| 29 | static void us2_init(struct pci_access *a) |
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| 30 | { |
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| 31 | } |
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| 32 | |||
| 33 | static void us2_cleanup(struct pci_access *a UNUSED) |
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| 34 | { |
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| 35 | } |
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| 36 | |||
| 37 | static int us2_detect(struct pci_access *a) |
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| 38 | { |
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| 39 | /* |
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| 40 | * Gain control over PCI configuration ports. |
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| 41 | */ |
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| 42 | if (pio_enable((void *)PCI_CONF_BASE, PCI_CONF_SIZE, &conf_addr)) { |
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| 43 | return 0; |
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| 44 | } |
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| 45 | |||
| 46 | unsigned int vendor_id = le16_to_cpu(pio_read_16(CONF_ADDR(0, 0, 0, PCI_VENDOR_ID))); |
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| 47 | unsigned int device_id = le16_to_cpu(pio_read_16(CONF_ADDR(0, 0, 0, PCI_DEVICE_ID))); |
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| 48 | |||
| 49 | // printf("PCI: vendor id = %x\n", vendor_id); |
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| 50 | // printf("PCI: device id = %x\n", device_id); |
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| 51 | |||
| 52 | return vendor_id == 0x108E && device_id == 0x8000; // should be Psycho from Sun Microsystems |
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| 53 | } |
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| 54 | |||
| 55 | |||
| 56 | static int us2_read(struct pci_dev *d, int pos, byte * buf, int len) |
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| 57 | { |
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| 58 | if (pos >= 256) |
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| 59 | return 0; |
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| 60 | |||
| 61 | /* The vendor ID and the device ID registers of the device number 0 (the bridge) |
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| 62 | * work in simics in different way than the other config. registers. */ |
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| 63 | if (d->dev == 0 && d->func == 0 && pos == 0 && len == 4) { |
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| 64 | ((u32 *) buf)[0] = pio_read_32(CONF_ADDR(d->bus, d->dev, d->func, pos)); |
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| 65 | return 1; |
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| 66 | } |
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| 67 | |||
| 68 | int i; |
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| 69 | for (i = 0; i < len; i++) { |
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| 70 | buf[i] = pio_read_8(CONF_ADDR(d->bus, d->dev, d->func, pos + i)); |
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| 71 | } |
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| 72 | return 1; |
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| 73 | } |
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| 74 | |||
| 75 | static int us2_write(struct pci_dev *d, int pos, byte * buf, int len) |
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| 76 | { |
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| 77 | if (pos >= 256) |
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| 78 | return 0; |
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| 79 | |||
| 80 | int i; |
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| 81 | for (i = 0; i < len; i++) { |
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| 82 | pio_write_8(CONF_ADDR(d->bus, d->dev, d->func, pos + i), buf[i]); |
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| 83 | } |
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| 84 | return 1; |
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| 85 | } |
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| 86 | |||
| 87 | |||
| 88 | struct pci_methods pm_us2 = { |
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| 89 | "Ultra Sparc IIi", |
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| 90 | NULL, /* config */ |
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| 91 | us2_detect, |
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| 92 | us2_init, |
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| 93 | us2_cleanup, |
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| 94 | pci_generic_scan, |
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| 95 | pci_generic_fill_info, |
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| 96 | us2_read, |
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| 97 | us2_write, |
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| 98 | NULL, /* init_dev */ |
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| 99 | NULL /* cleanup_dev */ |
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| 100 | }; |