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@ -23,6 +23,7 @@ |
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#include <common.h> |
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#include <asm/global_data.h> |
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#include <pci.h> |
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#include <asm/mpc8349_pci.h> |
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#include <i2c.h> |
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#ifdef CONFIG_PCI |
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@ -163,7 +164,20 @@ pci_init_board(void) |
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pci_ctrl[0].gcr = 0; |
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udelay(2000); |
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pci_ctrl[0].gcr = 1; |
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#ifdef CONFIG_MPC83XX_PCI2 |
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pci_ctrl[1].gcr = 0; |
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udelay(2000); |
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pci_ctrl[1].gcr = 1; |
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#endif |
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/* We need to wait at least a 1sec based on PCI specs */ |
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{ |
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int i; |
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for (i = 0; i < 1000; ++i) |
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udelay (1000); |
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} |
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/*
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* Configure PCI Local Access Windows |
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@ -178,16 +192,21 @@ pci_init_board(void) |
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* Configure PCI Outbound Translation Windows |
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*/ |
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/* PCI1 mem space */ |
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/* PCI1 mem space - prefetch */ |
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pci_pot[0].potar = (CFG_PCI1_MEM_BASE >> 12) & POTAR_TA_MASK; |
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pci_pot[0].pobar = (CFG_PCI1_MEM_PHYS >> 12) & POBAR_BA_MASK; |
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pci_pot[0].pocmr = POCMR_EN | (POCMR_CM_512M & POCMR_CM_MASK); |
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pci_pot[0].pocmr = POCMR_EN | POCMR_PREFETCH_EN | (POCMR_CM_256M & POCMR_CM_MASK); |
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/* PCI1 IO space */ |
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pci_pot[1].potar = (CFG_PCI1_IO_BASE >> 12) & POTAR_TA_MASK; |
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pci_pot[1].pobar = (CFG_PCI1_IO_PHYS >> 12) & POBAR_BA_MASK; |
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pci_pot[1].pocmr = POCMR_EN | POCMR_IO | (POCMR_CM_16M & POCMR_CM_MASK); |
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/* PCI1 mmio - non-prefetch mem space */ |
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pci_pot[2].potar = (CFG_PCI1_MMIO_BASE >> 12) & POTAR_TA_MASK; |
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pci_pot[2].pobar = (CFG_PCI1_MMIO_PHYS >> 12) & POBAR_BA_MASK; |
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pci_pot[2].pocmr = POCMR_EN | (POCMR_CM_256M & POCMR_CM_MASK); |
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/*
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* Configure PCI Inbound Translation Windows |
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*/ |
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@ -197,33 +216,40 @@ pci_init_board(void) |
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pci_ctrl[0].pitar1 = 0x0; |
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pci_ctrl[0].pibar1 = 0x0; |
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pci_ctrl[0].piebar1 = 0x0; |
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pci_ctrl[0].piwar1 = PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP | PIWAR_WTT_SNOOP | PIWAR_IWS_2G; |
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pci_ctrl[0].piwar1 = PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP | PIWAR_WTT_SNOOP | (__ilog2(gd->ram_size) - 1); |
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hose->first_busno = 0; |
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hose->last_busno = 0xff; |
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/* PCI memory space */ |
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/* PCI memory prefetch space */ |
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pci_set_region(hose->regions + 0, |
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CFG_PCI1_MEM_BASE, |
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CFG_PCI1_MEM_PHYS, |
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CFG_PCI1_MEM_SIZE, |
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PCI_REGION_MEM|PCI_REGION_PREFETCH); |
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/* PCI memory space */ |
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pci_set_region(hose->regions + 1, |
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CFG_PCI1_MMIO_BASE, |
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CFG_PCI1_MMIO_PHYS, |
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CFG_PCI1_MMIO_SIZE, |
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PCI_REGION_MEM); |
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/* PCI IO space */ |
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pci_set_region(hose->regions + 1, |
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pci_set_region(hose->regions + 2, |
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CFG_PCI1_IO_BASE, |
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CFG_PCI1_IO_PHYS, |
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CFG_PCI1_IO_SIZE, |
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PCI_REGION_IO); |
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/* System memory space */ |
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pci_set_region(hose->regions + 2, |
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pci_set_region(hose->regions + 3, |
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CONFIG_PCI_SYS_MEM_BUS, |
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CONFIG_PCI_SYS_MEM_PHYS, |
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gd->ram_size, |
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PCI_REGION_MEM | PCI_REGION_MEMORY); |
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hose->region_count = 3; |
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hose->region_count = 4; |
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pci_setup_indirect(hose, |
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(CFG_IMMRBAR+0x8300), |
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@ -248,6 +274,8 @@ pci_init_board(void) |
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0xffff); |
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pci_hose_write_config_byte(hose, PCI_BDF(0,0,0), PCI_LATENCY_TIMER, |
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0x80); |
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pci_hose_write_config_byte(hose, PCI_BDF(0,0,0), PCI_CACHE_LINE_SIZE, |
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0x08); |
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#ifdef CONFIG_PCI_SCAN_SHOW |
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printf("PCI: Bus Dev VenId DevId Class Int\n"); |
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@ -256,5 +284,104 @@ pci_init_board(void) |
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* Hose scan. |
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*/ |
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hose->last_busno = pci_hose_scan(hose); |
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#ifdef CONFIG_MPC83XX_PCI2 |
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hose = &pci_hose[1]; |
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/*
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* Configure PCI Outbound Translation Windows |
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*/ |
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/* PCI2 mem space - prefetch */ |
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pci_pot[3].potar = (CFG_PCI2_MEM_BASE >> 12) & POTAR_TA_MASK; |
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pci_pot[3].pobar = (CFG_PCI2_MEM_PHYS >> 12) & POBAR_BA_MASK; |
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pci_pot[3].pocmr = POCMR_EN | POCMR_PCI2 | POCMR_PREFETCH_EN | (POCMR_CM_256M & POCMR_CM_MASK); |
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/* PCI2 IO space */ |
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pci_pot[4].potar = (CFG_PCI2_IO_BASE >> 12) & POTAR_TA_MASK; |
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pci_pot[4].pobar = (CFG_PCI2_IO_PHYS >> 12) & POBAR_BA_MASK; |
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pci_pot[4].pocmr = POCMR_EN | POCMR_PCI2 | POCMR_IO | (POCMR_CM_16M & POCMR_CM_MASK); |
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/* PCI2 mmio - non-prefetch mem space */ |
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pci_pot[5].potar = (CFG_PCI2_MMIO_BASE >> 12) & POTAR_TA_MASK; |
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pci_pot[5].pobar = (CFG_PCI2_MMIO_PHYS >> 12) & POBAR_BA_MASK; |
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pci_pot[5].pocmr = POCMR_EN | POCMR_PCI2 | (POCMR_CM_256M & POCMR_CM_MASK); |
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/*
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* Configure PCI Inbound Translation Windows |
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*/ |
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/* we need RAM mapped to PCI space for the devices to
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* access main memory */ |
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pci_ctrl[1].pitar1 = 0x0; |
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pci_ctrl[1].pibar1 = 0x0; |
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pci_ctrl[1].piebar1 = 0x0; |
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pci_ctrl[1].piwar1 = PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP | PIWAR_WTT_SNOOP | (__ilog2(gd->ram_size) - 1); |
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hose->first_busno = pci_hose[0].last_busno + 1; |
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hose->last_busno = 0xff; |
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/* PCI memory prefetch space */ |
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pci_set_region(hose->regions + 0, |
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CFG_PCI2_MEM_BASE, |
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CFG_PCI2_MEM_PHYS, |
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CFG_PCI2_MEM_SIZE, |
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PCI_REGION_MEM|PCI_REGION_PREFETCH); |
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/* PCI memory space */ |
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pci_set_region(hose->regions + 1, |
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CFG_PCI2_MMIO_BASE, |
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CFG_PCI2_MMIO_PHYS, |
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CFG_PCI2_MMIO_SIZE, |
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PCI_REGION_MEM); |
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/* PCI IO space */ |
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pci_set_region(hose->regions + 2, |
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CFG_PCI2_IO_BASE, |
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CFG_PCI2_IO_PHYS, |
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CFG_PCI2_IO_SIZE, |
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PCI_REGION_IO); |
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/* System memory space */ |
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pci_set_region(hose->regions + 3, |
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CONFIG_PCI_SYS_MEM_BUS, |
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CONFIG_PCI_SYS_MEM_PHYS, |
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gd->ram_size, |
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PCI_REGION_MEM | PCI_REGION_MEMORY); |
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hose->region_count = 4; |
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pci_setup_indirect(hose, |
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(CFG_IMMRBAR+0x8380), |
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(CFG_IMMRBAR+0x8384)); |
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pci_register_hose(hose); |
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/*
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* Write to Command register |
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*/ |
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reg16 = 0xff; |
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pci_hose_read_config_word (hose, PCI_BDF(0,0,0), PCI_COMMAND, |
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®16); |
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reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY; |
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pci_hose_write_config_word(hose, PCI_BDF(0,0,0), PCI_COMMAND, |
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reg16); |
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/*
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* Clear non-reserved bits in status register. |
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*/ |
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pci_hose_write_config_word(hose, PCI_BDF(0,0,0), PCI_STATUS, |
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0xffff); |
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pci_hose_write_config_byte(hose, PCI_BDF(0,0,0), PCI_LATENCY_TIMER, |
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0x80); |
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pci_hose_write_config_byte(hose, PCI_BDF(0,0,0), PCI_CACHE_LINE_SIZE, |
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0x08); |
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/*
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* Hose scan. |
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*/ |
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hose->last_busno = pci_hose_scan(hose); |
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#endif |
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} |
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#endif /* CONFIG_PCI */ |
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