- return dram_size;
-#else
- return CONFIG_SYS_MBYTES_SDRAM << 20;
-#endif
-}
-
-/*************************************************************************
- * pci_pre_init
- *
- * This routine is called just prior to registering the hose and gives
- * the board the opportunity to check things. Returning a value of zero
- * indicates that things are bad & PCI initialization should be aborted.
- *
- * Different boards may wish to customize the pci controller structure
- * (add regions, override default access routines, etc) or perform
- * certain pre-initialization actions.
- *
- ************************************************************************/
-#if defined(CONFIG_PCI)
-int pci_pre_init(struct pci_controller *hose)
-{
- unsigned long addr;
-
- /*-------------------------------------------------------------------------+
- | Set priority for all PLB3 devices to 0.
- | Set PLB3 arbiter to fair mode.
- +-------------------------------------------------------------------------*/
- mfsdr(SD0_AMP1, addr);
- mtsdr(SD0_AMP1, (addr & 0x000000FF) | 0x0000FF00);
- addr = mfdcr(PLB3_ACR);
- mtdcr(PLB3_ACR, addr | 0x80000000);
-
- /*-------------------------------------------------------------------------+
- | Set priority for all PLB4 devices to 0.
- +-------------------------------------------------------------------------*/
- mfsdr(SD0_AMP0, addr);
- mtsdr(SD0_AMP0, (addr & 0x000000FF) | 0x0000FF00);
- addr = mfdcr(PLB4_ACR) | 0xa0000000; /* Was 0x8---- */
- mtdcr(PLB4_ACR, addr);
-
- /*-------------------------------------------------------------------------+
- | Set Nebula PLB4 arbiter to fair mode.
- +-------------------------------------------------------------------------*/
- /* Segment0 */
- addr = (mfdcr(PLB0_ACR) & ~PLB0_ACR_PPM_MASK) | PLB0_ACR_PPM_FAIR;
- addr = (addr & ~PLB0_ACR_HBU_MASK) | PLB0_ACR_HBU_ENABLED;
- addr = (addr & ~PLB0_ACR_RDP_MASK) | PLB0_ACR_RDP_4DEEP;
- addr = (addr & ~PLB0_ACR_WRP_MASK) | PLB0_ACR_WRP_2DEEP;
- mtdcr(PLB0_ACR, addr);
-
- /* Segment1 */
- addr = (mfdcr(PLB1_ACR) & ~PLB1_ACR_PPM_MASK) | PLB1_ACR_PPM_FAIR;
- addr = (addr & ~PLB1_ACR_HBU_MASK) | PLB1_ACR_HBU_ENABLED;
- addr = (addr & ~PLB1_ACR_RDP_MASK) | PLB1_ACR_RDP_4DEEP;
- addr = (addr & ~PLB1_ACR_WRP_MASK) | PLB1_ACR_WRP_2DEEP;
- mtdcr(PLB1_ACR, addr);
-
- return 1;
-}
-#endif /* defined(CONFIG_PCI) */
-
-/*************************************************************************
- * pci_master_init
- *
- ************************************************************************/
-#if defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_MASTER_INIT)
-void pci_master_init(struct pci_controller *hose)
-{
- unsigned short temp_short;
-
- /*--------------------------------------------------------------------------+
- | Write the PowerPC440 EP PCI Configuration regs.
- | Enable PowerPC440 EP to be a master on the PCI bus (PMM).
- | Enable PowerPC440 EP to act as a PCI memory target (PTM).
- +--------------------------------------------------------------------------*/
- pci_read_config_word(0, PCI_COMMAND, &temp_short);
- pci_write_config_word(0, PCI_COMMAND,
- temp_short | PCI_COMMAND_MASTER |
- PCI_COMMAND_MEMORY);