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Differential D14752 Diff 41083 head/sys/arm/mv/mv_pci.c

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head/sys/arm/mv/mv_pci.c

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struct mv_pci_range { struct mv_pci_range {
u_long base_pci; u_long base_pci;
u_long base_parent; u_long base_parent;
u_long len; u_long len;
}; };
#define FDT_RANGES_CELLS ((3 + 3 + 2) * 2) #define FDT_RANGES_CELLS ((3 + 3 + 2) * 2)
#define PCI_SPACE_LEN 0x00100000
static void static void
mv_pci_range_dump(struct mv_pci_range *range) mv_pci_range_dump(struct mv_pci_range *range)
{ {
#ifdef DEBUG #ifdef DEBUG
printf("\n"); printf("\n");
printf(" base_pci = 0x%08lx\n", range->base_pci); printf(" base_pci = 0x%08lx\n", range->base_pci);
printf(" base_par = 0x%08lx\n", range->base_parent); printf(" base_par = 0x%08lx\n", range->base_parent);
printf(" len = 0x%08lx\n", range->len); printf(" len = 0x%08lx\n", range->len);
#endif #endif
} }
static int static int
mv_pci_ranges_decode(phandle_t node, struct mv_pci_range *io_space, mv_pci_ranges_decode(phandle_t node, struct mv_pci_range *io_space,
struct mv_pci_range *mem_space) struct mv_pci_range *mem_space)
{ {
pcell_t ranges[FDT_RANGES_CELLS]; pcell_t ranges[FDT_RANGES_CELLS];
struct mv_pci_range *pci_space; struct mv_pci_range *pci_space;
pcell_t addr_cells, size_cells, par_addr_cells; pcell_t addr_cells, size_cells, par_addr_cells;
pcell_t *rangesptr; pcell_t *rangesptr;
pcell_t cell0, cell1, cell2; pcell_t cell0, cell1, cell2;
int tuple_size, tuples, i, rv, offset_cells, len; int tuple_size, tuples, i, rv, offset_cells, len;
int portid, is_io_space;
/* /*
* Retrieve 'ranges' property. * Retrieve 'ranges' property.
*/ */
if ((fdt_addrsize_cells(node, &addr_cells, &size_cells)) != 0) if ((fdt_addrsize_cells(node, &addr_cells, &size_cells)) != 0)
return (EINVAL); return (EINVAL);
if (addr_cells != 3 || size_cells != 2) if (addr_cells != 3 || size_cells != 2)
return (ERANGE); return (ERANGE);
Show All 25 Linesmv_pci_ranges_decode(phandle_t node, struct mv_pci_range *io_space,
offset_cells = 0; offset_cells = 0;
for (i = 0; i < tuples; i++) { for (i = 0; i < tuples; i++) {
cell0 = fdt_data_get((void *)rangesptr, 1); cell0 = fdt_data_get((void *)rangesptr, 1);
rangesptr++; rangesptr++;
cell1 = fdt_data_get((void *)rangesptr, 1); cell1 = fdt_data_get((void *)rangesptr, 1);
rangesptr++; rangesptr++;
cell2 = fdt_data_get((void *)rangesptr, 1); cell2 = fdt_data_get((void *)rangesptr, 1);
rangesptr++; rangesptr++;
portid = fdt_data_get((void *)(rangesptr+1), 1);
if (cell0 & 0x02000000) { if (cell0 & 0x02000000) {
pci_space = mem_space; pci_space = mem_space;
is_io_space = 0;
} else if (cell0 & 0x01000000) { } else if (cell0 & 0x01000000) {
pci_space = io_space; pci_space = io_space;
is_io_space = 1;
} else { } else {
rv = ERANGE; rv = ERANGE;
goto out; goto out;
} }
if (par_addr_cells == 3) { if (par_addr_cells == 3) {
/* /*
* This is a PCI subnode 'ranges'. Skip cell0 and * This is a PCI subnode 'ranges'. Skip cell0 and
Show All 14 Lines for (i = 0; i < tuples; i++) {
if (size_cells > 2) { if (size_cells > 2) {
rv = ERANGE; rv = ERANGE;
goto out; goto out;
} }
pci_space->len = fdt_data_get((void *)rangesptr, size_cells); pci_space->len = fdt_data_get((void *)rangesptr, size_cells);
rangesptr += size_cells; rangesptr += size_cells;
pci_space->base_pci = cell2; pci_space->base_pci = cell2;
if (pci_space->len == 0) {
pci_space->len = PCI_SPACE_LEN;
pci_space->base_parent = fdt_immr_va +
PCI_SPACE_LEN * ( 2 * portid + is_io_space);
}
} }
rv = 0; rv = 0;
out: out:
return (rv); return (rv);
} }
static int static int
mv_pci_ranges(phandle_t node, struct mv_pci_range *io_space, mv_pci_ranges(phandle_t node, struct mv_pci_range *io_space,
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