static void __init setup_pcimap(void)
{
LOONGSON_PCIMAP = LOONGSON_PCIMAP_PCIMAP_2 |
LOONGSON_PCIMAP_WIN(2, LOONGSON_PCILO2_BASE) |
LOONGSON_PCIMAP_WIN(1, LOONGSON_PCILO1_BASE) |
LOONGSON_PCIMAP_WIN(0, 0);
LOONGSON_PCIBASE0 = 0x80000000ul;
LOONGSON_PCI_HIT0_SEL_L = 0xc000000cul;
LOONGSON_PCI_HIT0_SEL_H = 0xfffffffful;
LOONGSON_PCI_HIT1_SEL_L = 0x00000006ul;
LOONGSON_PCI_HIT1_SEL_H = 0x00000000ul;
LOONGSON_PCI_HIT2_SEL_L = 0x00000006ul;
LOONGSON_PCI_HIT2_SEL_H = 0x00000000ul;
LOONGSON_PCI_ISR4C = 0xd2000001ul;
LOONGSON_PXARB_CFG = 0x00fe0105ul;
#ifdef CONFIG_CPU_SUPPORTS_ADDRWINCFG
LOONGSON_ADDRWIN_CPUTOPCI(ADDRWIN_WIN2, LOONGSON_CPU_MEM_SRC,
LOONGSON_PCI_MEM_DST, MMAP_CPUTOPCI_SIZE);
#endif
}
static void __init setup_pcimap(void)
{
/*
* local to PCI mapping for CPU accessing PCI space
* CPU address space [256M,448M] is window for accessing pci space
* we set pcimap_lo[0,1,2] to map it to pci space[0M,64M], [320M,448M]
*
* pcimap: PCI_MAP2 PCI_Mem_Lo2 PCI_Mem_Lo1 PCI_Mem_Lo0
* [<2G] [384M,448M] [320M,384M] [0M,64M]
*/
LOONGSON_PCIMAP = LOONGSON_PCIMAP_PCIMAP_2 |
LOONGSON_PCIMAP_WIN(2, LOONGSON_PCILO2_BASE) |
LOONGSON_PCIMAP_WIN(1, LOONGSON_PCILO1_BASE) |
LOONGSON_PCIMAP_WIN(0, 0);
/*
* PCI-DMA to local mapping: [2G,2G+256M] -> [0M,256M]
*/
LOONGSON_PCIBASE0 = 0x80000000ul; /* base: 2G -> mmap: 0M */
/* size: 256M, burst transmission, pre-fetch enable, 64bit */
LOONGSON_PCI_HIT0_SEL_L = 0xc000000cul;
LOONGSON_PCI_HIT0_SEL_H = 0xfffffffful;
LOONGSON_PCI_HIT1_SEL_L = 0x00000006ul; /* set this BAR as invalid */
LOONGSON_PCI_HIT1_SEL_H = 0x00000000ul;
LOONGSON_PCI_HIT2_SEL_L = 0x00000006ul; /* set this BAR as invalid */
LOONGSON_PCI_HIT2_SEL_H = 0x00000000ul;
/* avoid deadlock of PCI reading/writing lock operation */
LOONGSON_PCI_ISR4C = 0xd2000001ul;
/* can not change gnt to break pci transfer when device's gnt not
deassert for some broken device */
LOONGSON_PXARB_CFG = 0x00fe0105ul;
#ifdef CONFIG_CPU_SUPPORTS_ADDRWINCFG
/*
* set cpu addr window2 to map CPU address space to PCI address space
*/
LOONGSON_ADDRWIN_CPUTOPCI(ADDRWIN_WIN2, LOONGSON_CPU_MEM_SRC,
LOONGSON_PCI_MEM_DST, MMAP_CPUTOPCI_SIZE);
#endif
}