*/
#include <common.h>
-#include <pci.h>
#include <asm/io.h>
-#include <asm/pci.h>
#include <asm/ic/sc520.h>
-#include <asm/ic/pci.h>
#include <ali512x.h>
#include <spi.h>
#include <netdev.h>
sc520_mmcr->eccmap = 0x100; /* Map SDRAM ECC failure INT to NMI */
}
-#ifdef CONFIG_PCI
-/* PCI stuff */
-static void pci_sc520_cdp_fixup_irq(struct pci_controller *hose, pci_dev_t dev)
-{
- /* a configurable lists of irqs to steal
- * when we need one (a board with more pci interrupt pins
- * would use a larger table */
- static int irq_list[] = {
- CONFIG_SYS_FIRST_PCI_IRQ,
- CONFIG_SYS_SECOND_PCI_IRQ,
- CONFIG_SYS_THIRD_PCI_IRQ,
- CONFIG_SYS_FORTH_PCI_IRQ
- };
- static int next_irq_index=0;
-
- uchar tmp_pin;
- int pin;
-
- pci_hose_read_config_byte(hose, dev, PCI_INTERRUPT_PIN, &tmp_pin);
- pin = tmp_pin;
-
- pin-=1; /* pci config space use 1-based numbering */
- if (-1 == pin) {
- return; /* device use no irq */
- }
-
-
- /* map device number + pin to a pin on the sc520 */
- switch (PCI_DEV(dev)) {
- case 20:
- pin+=SC520_PCI_INTA;
- break;
-
- case 19:
- pin+=SC520_PCI_INTB;
- break;
-
- case 18:
- pin+=SC520_PCI_INTC;
- break;
-
- case 17:
- pin+=SC520_PCI_INTD;
- break;
-
- default:
- return;
- }
-
- pin&=3; /* wrap around */
-
- if (sc520_pci_ints[pin] == -1) {
- /* re-route one interrupt for us */
- if (next_irq_index > 3) {
- return;
- }
- if (pci_sc520_set_irq(pin, irq_list[next_irq_index])) {
- return;
- }
- next_irq_index++;
- }
-
-
- if (-1 != sc520_pci_ints[pin]) {
- pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE,
- sc520_pci_ints[pin]);
- }
- PRINTF("fixup_irq: device %d pin %c irq %d\n",
- PCI_DEV(dev), 'A' + pin, sc520_pci_ints[pin]);
-}
-
-static struct pci_controller sc520_cdp_hose = {
- fixup_irq: pci_sc520_cdp_fixup_irq,
-};
-
-void pci_init_board(void)
-{
- pci_sc520_init(&sc520_cdp_hose);
-}
-#endif
-
static void silence_uart(int port)
{
outb(0, port+1);
* PAR15 Port 0x680 LED display
*/
-/*
- * This function should map a chunk of size bytes
- * of the system address space to the ISA bus
- *
- * The function will return the memory address
- * as seen by the host (which may very will be the
- * same as the bus address)
- */
-u32 isa_map_rom(u32 bus_addr, int size)
-{
- u32 par;
-
- PRINTF("isa_map_rom asked to map %d bytes at %x\n",
- size, bus_addr);
-
- par = size;
- if (par < 0x80000) {
- par = 0x80000;
- }
- par >>= 12;
- par--;
- par&=0x7f;
- par <<= 18;
- par |= (bus_addr>>12);
- par |= 0x50000000;
-
- PRINTF ("setting PAR11 to %x\n", par);
-
- /* Map rom 0x10000 with PAR1 */
- sc520_mmcr->par[11] = par;
-
- return bus_addr;
-}
-
-/*
- * this function removed any mapping created
- * with pci_get_rom_window()
- */
-void isa_unmap_rom(u32 addr)
-{
- PRINTF("isa_unmap_rom asked to unmap %x", addr);
- if ((addr>>12) == (sc520_mmcr->par[11] & 0x3ffff)) {
- sc520_mmcr->par[11] = 0;
- PRINTF(" done\n");
- return;
- }
- PRINTF(" not ours\n");
-}
-
-#ifdef CONFIG_PCI
-#define PCI_ROM_TEMP_SPACE 0x10000
-/*
- * This function should map a chunk of size bytes
- * of the system address space to the PCI bus,
- * suitable to map PCI ROMS (bus address < 16M)
- * the function will return the host memory address
- * which should be converted into a bus address
- * before used to configure the PCI rom address
- * decoder
- */
-u32 pci_get_rom_window(struct pci_controller *hose, int size)
-{
- u32 par;
-
- par = size;
- if (par < 0x80000) {
- par = 0x80000;
- }
- par >>= 16;
- par--;
- par&=0x7ff;
- par <<= 14;
- par |= (PCI_ROM_TEMP_SPACE>>16);
- par |= 0x72000000;
-
- PRINTF ("setting PAR1 to %x\n", par);
-
- /* Map rom 0x10000 with PAR1 */
- sc520_mmcr->par[1] = par;
-
- return PCI_ROM_TEMP_SPACE;
-}
-
-/*
- * this function removed any mapping created
- * with pci_get_rom_window()
- */
-void pci_remove_rom_window(struct pci_controller *hose, u32 addr)
-{
- PRINTF("pci_remove_rom_window: %x", addr);
- if (addr == PCI_ROM_TEMP_SPACE) {
- sc520_mmcr->par[1] = 0;
- PRINTF(" done\n");
- return;
- }
- PRINTF(" not ours\n");
-
-}
-
-/*
- * This function is called in order to provide acces to the
- * legacy video I/O ports on the PCI bus.
- * After this function accesses to I/O ports 0x3b0-0x3bb and
- * 0x3c0-0x3df shuld result in transactions on the PCI bus.
- *
- */
-int pci_enable_legacy_video_ports(struct pci_controller *hose)
-{
- /* Map video memory to 0xa0000*/
- sc520_mmcr->par[0] = 0x7200400a;
-
- /* forward all I/O accesses to PCI */
- sc520_mmcr->adddecctl = sc520_mmcr->adddecctl | IO_HOLE_DEST_PCI;
-
-
- /* so we map away all io ports to pci (only way to access pci io
- * below 0x400. But then we have to map back the portions that we dont
- * use so that the generate cycles on the GPIO bus where the sio and
- * ISA slots are connected, this requre the use of several PAR registers
- */
-
- /* bring 0x100 - 0x1ef back to ISA using PAR5 */
- sc520_mmcr->par[5] = 0x30ef0100;
-
- /* IDE use 1f0-1f7 */
-
- /* bring 0x1f8 - 0x2f7 back to ISA using PAR6 */
- sc520_mmcr->par[6] = 0x30ff01f8;
-
- /* com2 use 2f8-2ff */
-
- /* bring 0x300 - 0x3af back to ISA using PAR7 */
- sc520_mmcr->par[7] = 0x30af0300;
-
- /* vga use 3b0-3bb */
-
- /* bring 0x3bc - 0x3bf back to ISA using PAR8 */
- sc520_mmcr->par[8] = 0x300303bc;
-
- /* vga use 3c0-3df */
-
- /* bring 0x3e0 - 0x3f5 back to ISA using PAR9 */
- sc520_mmcr->par[9] = 0x301503e0;
-
- /* ide use 3f6 */
-
- /* bring 0x3f7 back to ISA using PAR10 */
- sc520_mmcr->par[10] = 0x300003f7;
-
- /* com1 use 3f8-3ff */
-
- return 0;
-}
-#endif
-
/*
* Miscelaneous platform dependent initialisations
*/
projects / karo-tx-uboot.git / blobdiff