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init PCI DMA and USB controllers

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2010-05-22 23:06:47 +02:00
parent e34b610d49
commit a7208779c3
1 changed files with 44 additions and 10 deletions
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54
kern/mips/yeeloong/init.c
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@ -66,6 +66,49 @@ grub_machine_mmap_iterate (int NESTED_FUNC_ATTR (*hook) (grub_uint64_t,
return GRUB_ERR_NONE; return GRUB_ERR_NONE;
} }
static void
init_pci (void)
{
auto int NESTED_FUNC_ATTR set_card (grub_pci_device_t dev, grub_pci_id_t pciid);
int NESTED_FUNC_ATTR set_card (grub_pci_device_t dev, grub_pci_id_t pciid)
{
grub_pci_address_t addr;
/* FIXME: autoscan for BARs and devices. */
switch (pciid)
{
case 0x00351033:
addr = grub_pci_make_address (dev, GRUB_PCI_REG_ADDRESS_REG0);
grub_pci_write (addr, 0x5025000);
addr = grub_pci_make_address (dev, GRUB_PCI_REG_COMMAND);
grub_pci_write (addr, 0x2100146);
break;
case 0x00e01033:
addr = grub_pci_make_address (dev, GRUB_PCI_REG_ADDRESS_REG0);
grub_pci_write (addr, 0x5026000);
addr = grub_pci_make_address (dev, GRUB_PCI_REG_COMMAND);
grub_pci_write (addr, 0x2100146);
break;
}
return 0;
}
*((volatile grub_uint32_t *) GRUB_CPU_LOONGSON_PCI_HIT1_SEL_LO) = 0x8000000c;
*((volatile grub_uint32_t *) GRUB_CPU_LOONGSON_PCI_HIT1_SEL_HI) = 0xffffffff;
/* Setup PCI controller. */
*((volatile grub_uint32_t *) (GRUB_MACHINE_PCI_CONTROLLER_HEADER
+ GRUB_PCI_REG_COMMAND)) = 0x22b00046;
*((volatile grub_uint32_t *) (GRUB_MACHINE_PCI_CONTROLLER_HEADER
+ GRUB_PCI_REG_CACHELINE)) = 0xff;
*((volatile grub_uint32_t *) (GRUB_MACHINE_PCI_CONTROLLER_HEADER
+ GRUB_PCI_REG_ADDRESS_REG0))
= 0x80000000 | GRUB_PCI_ADDR_MEM_TYPE_64 | GRUB_PCI_ADDR_MEM_PREFETCH;
*((volatile grub_uint32_t *) (GRUB_MACHINE_PCI_CONTROLLER_HEADER
+ GRUB_PCI_REG_ADDRESS_REG1)) = 0;
grub_pci_iterate (set_card);
}
void void
grub_machine_init (void) grub_machine_init (void)
{ {
@ -123,16 +166,7 @@ grub_machine_init (void)
grub_cs5536_init_geode (dev); grub_cs5536_init_geode (dev);
/* Setup PCI controller. */ init_pci ();
*((volatile grub_uint32_t *) (GRUB_MACHINE_PCI_CONTROLLER_HEADER
+ GRUB_PCI_REG_COMMAND)) = 0x22b00046;
*((volatile grub_uint32_t *) (GRUB_MACHINE_PCI_CONTROLLER_HEADER
+ GRUB_PCI_REG_CACHELINE)) = 0xff;
*((volatile grub_uint32_t *) (GRUB_MACHINE_PCI_CONTROLLER_HEADER
+ GRUB_PCI_REG_ADDRESS_REG0))
= 0x80000000 | GRUB_PCI_ADDR_MEM_TYPE_64 | GRUB_PCI_ADDR_MEM_PREFETCH;
*((volatile grub_uint32_t *) (GRUB_MACHINE_PCI_CONTROLLER_HEADER
+ GRUB_PCI_REG_ADDRESS_REG1)) = 0;
} }
modend = grub_modules_get_end (); modend = grub_modules_get_end ();