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-rw-r--r--cpu/ppc4xx/4xx_pci.c595
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diff --git a/cpu/ppc4xx/4xx_pci.c b/cpu/ppc4xx/4xx_pci.c
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+++ b/cpu/ppc4xx/4xx_pci.c
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+/*-----------------------------------------------------------------------------+
+ *
+ * This source code has been made available to you by IBM on an AS-IS
+ * basis. Anyone receiving this source is licensed under IBM
+ * copyrights to use it in any way he or she deems fit, including
+ * copying it, modifying it, compiling it, and redistributing it either
+ * with or without modifications. No license under IBM patents or
+ * patent applications is to be implied by the copyright license.
+ *
+ * Any user of this software should understand that IBM cannot provide
+ * technical support for this software and will not be responsible for
+ * any consequences resulting from the use of this software.
+ *
+ * Any person who transfers this source code or any derivative work
+ * must include the IBM copyright notice, this paragraph, and the
+ * preceding two paragraphs in the transferred software.
+ *
+ * COPYRIGHT I B M CORPORATION 1995
+ * LICENSED MATERIAL - PROGRAM PROPERTY OF I B M
+ *-----------------------------------------------------------------------------*/
+/*----------------------------------------------------------------------------+
+ *
+ * File Name: 405gp_pci.c
+ *
+ * Function: Initialization code for the 405GP PCI Configuration regs.
+ *
+ * Author: Mark Game
+ *
+ * Change Activity-
+ *
+ * Date Description of Change BY
+ * --------- --------------------- ---
+ * 09-Sep-98 Created MCG
+ * 02-Nov-98 Removed External arbiter selected message JWB
+ * 27-Nov-98 Zero out PTMBAR2 and disable in PTM2MS JWB
+ * 04-Jan-99 Zero out other unused PMM and PTM regs. Change bus scan MCG
+ * from (0 to n) to (1 to n).
+ * 17-May-99 Port to Walnut JWB
+ * 17-Jun-99 Updated for VGA support JWB
+ * 21-Jun-99 Updated to allow SRAM region to be a target from PCI bus JWB
+ * 19-Jul-99 Updated for 405GP pass 1 errata #26 (Low PCI subsequent MCG
+ * target latency timer values are not supported).
+ * Should be fixed in pass 2.
+ * 09-Sep-99 Removed use of PTM2 since the SRAM region no longer needs JWB
+ * to be a PCI target. Zero out PTMBAR2 and disable in PTM2MS.
+ * 10-Dec-99 Updated PCI_Write_CFG_Reg for pass2 errata #6 JWB
+ * 11-Jan-00 Ensure PMMxMAs disabled before setting PMMxLAs. This is not
+ * really required after a reset since PMMxMAs are already
+ * disabled but is a good practice nonetheless. JWB
+ * 12-Jun-01 stefan.roese@esd-electronics.com
+ * - PCI host/adapter handling reworked
+ * 09-Jul-01 stefan.roese@esd-electronics.com
+ * - PCI host now configures from device 0 (not 1) to max_dev,
+ * (host configures itself)
+ * - On CPCI-405 pci base address and size is generated from
+ * SDRAM and FLASH size (CFG regs not used anymore)
+ * - Some minor changes for CPCI-405-A (adapter version)
+ * 14-Sep-01 stefan.roese@esd-electronics.com
+ * - CONFIG_PCI_SCAN_SHOW added to print pci devices upon startup
+ * 28-Sep-01 stefan.roese@esd-electronics.com
+ * - Changed pci master configuration for linux compatibility
+ * (no need for bios_fixup() anymore)
+ * 26-Feb-02 stefan.roese@esd-electronics.com
+ * - Bug fixed in pci configuration (Andrew May)
+ * - Removed pci class code init for CPCI405 board
+ * 15-May-02 stefan.roese@esd-electronics.com
+ * - New vga device handling
+ * 29-May-02 stefan.roese@esd-electronics.com
+ * - PCI class code init added (if defined)
+ *----------------------------------------------------------------------------*/
+
+#include <common.h>
+#include <command.h>
+#if !defined(CONFIG_440)
+#include <asm/4xx_pci.h>
+#endif
+#include <asm/processor.h>
+#include <pci.h>
+
+#ifdef CONFIG_PCI
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * Board-specific pci initialization
+ * Platform code can reimplement pci_pre_init() if needed
+ */
+int __pci_pre_init(struct pci_controller *hose)
+{
+ return 1;
+}
+int pci_pre_init(struct pci_controller *hose) __attribute__((weak, alias("__pci_pre_init")));
+
+#if defined(CONFIG_405GP) || defined(CONFIG_405EP)
+
+#if defined(CONFIG_PMC405)
+ushort pmc405_pci_subsys_deviceid(void);
+#endif
+
+/*#define DEBUG*/
+
+/*-----------------------------------------------------------------------------+
+ * pci_init. Initializes the 405GP PCI Configuration regs.
+ *-----------------------------------------------------------------------------*/
+void pci_405gp_init(struct pci_controller *hose)
+{
+ int i, reg_num = 0;
+ bd_t *bd = gd->bd;
+
+ unsigned short temp_short;
+ unsigned long ptmpcila[2] = {CFG_PCI_PTM1PCI, CFG_PCI_PTM2PCI};
+#if defined(CONFIG_CPCI405) || defined(CONFIG_PMC405)
+ char *ptmla_str, *ptmms_str;
+#endif
+ unsigned long ptmla[2] = {CFG_PCI_PTM1LA, CFG_PCI_PTM2LA};
+ unsigned long ptmms[2] = {CFG_PCI_PTM1MS, CFG_PCI_PTM2MS};
+#if defined(CONFIG_PIP405) || defined (CONFIG_MIP405)
+ unsigned long pmmla[3] = {0x80000000, 0xA0000000, 0};
+ unsigned long pmmma[3] = {0xE0000001, 0xE0000001, 0};
+ unsigned long pmmpcila[3] = {0x80000000, 0x00000000, 0};
+ unsigned long pmmpciha[3] = {0x00000000, 0x00000000, 0};
+#else
+ unsigned long pmmla[3] = {0x80000000, 0,0};
+ unsigned long pmmma[3] = {0xC0000001, 0,0};
+ unsigned long pmmpcila[3] = {0x80000000, 0,0};
+ unsigned long pmmpciha[3] = {0x00000000, 0,0};
+#endif
+#ifdef CONFIG_PCI_PNP
+#if (CONFIG_PCI_HOST == PCI_HOST_AUTO)
+ char *s;
+#endif
+#endif
+
+#if defined(CONFIG_CPCI405) || defined(CONFIG_PMC405)
+ ptmla_str = getenv("ptm1la");
+ ptmms_str = getenv("ptm1ms");
+ if(NULL != ptmla_str && NULL != ptmms_str ) {
+ ptmla[0] = simple_strtoul (ptmla_str, NULL, 16);
+ ptmms[0] = simple_strtoul (ptmms_str, NULL, 16);
+ }
+
+ ptmla_str = getenv("ptm2la");
+ ptmms_str = getenv("ptm2ms");
+ if(NULL != ptmla_str && NULL != ptmms_str ) {
+ ptmla[1] = simple_strtoul (ptmla_str, NULL, 16);
+ ptmms[1] = simple_strtoul (ptmms_str, NULL, 16);
+ }
+#endif
+
+ /*
+ * Register the hose
+ */
+ hose->first_busno = 0;
+ hose->last_busno = 0xff;
+
+ /* ISA/PCI I/O space */
+ pci_set_region(hose->regions + reg_num++,
+ MIN_PCI_PCI_IOADDR,
+ MIN_PLB_PCI_IOADDR,
+ 0x10000,
+ PCI_REGION_IO);
+
+ /* PCI I/O space */
+ pci_set_region(hose->regions + reg_num++,
+ 0x00800000,
+ 0xe8800000,
+ 0x03800000,
+ PCI_REGION_IO);
+
+ reg_num = 2;
+
+ /* Memory spaces */
+ for (i=0; i<2; i++)
+ if (ptmms[i] & 1)
+ {
+ if (!i) hose->pci_fb = hose->regions + reg_num;
+
+ pci_set_region(hose->regions + reg_num++,
+ ptmpcila[i], ptmla[i],
+ ~(ptmms[i] & 0xfffff000) + 1,
+ PCI_REGION_MEM |
+ PCI_REGION_MEMORY);
+ }
+
+ /* PCI memory spaces */
+ for (i=0; i<3; i++)
+ if (pmmma[i] & 1)
+ {
+ pci_set_region(hose->regions + reg_num++,
+ pmmpcila[i], pmmla[i],
+ ~(pmmma[i] & 0xfffff000) + 1,
+ PCI_REGION_MEM);
+ }
+
+ hose->region_count = reg_num;
+
+ pci_setup_indirect(hose,
+ PCICFGADR,
+ PCICFGDATA);
+
+ if (hose->pci_fb)
+ pciauto_region_init(hose->pci_fb);
+
+ /* Let board change/modify hose & do initial checks */
+ if (pci_pre_init (hose) == 0) {
+ printf("PCI: Board-specific initialization failed.\n");
+ printf("PCI: Configuration aborted.\n");
+ return;
+ }
+
+ pci_register_hose(hose);
+
+ /*--------------------------------------------------------------------------+
+ * 405GP PCI Master configuration.
+ * Map one 512 MB range of PLB/processor addresses to PCI memory space.
+ * PLB address 0x80000000-0xBFFFFFFF ==> PCI address 0x80000000-0xBFFFFFFF
+ * Use byte reversed out routines to handle endianess.
+ *--------------------------------------------------------------------------*/
+ out32r(PMM0MA, (pmmma[0]&~0x1)); /* disable, configure PMMxLA, PMMxPCILA first */
+ out32r(PMM0LA, pmmla[0]);
+ out32r(PMM0PCILA, pmmpcila[0]);
+ out32r(PMM0PCIHA, pmmpciha[0]);
+ out32r(PMM0MA, pmmma[0]);
+
+ /*--------------------------------------------------------------------------+
+ * PMM1 is not used. Initialize them to zero.
+ *--------------------------------------------------------------------------*/
+ out32r(PMM1MA, (pmmma[1]&~0x1));
+ out32r(PMM1LA, pmmla[1]);
+ out32r(PMM1PCILA, pmmpcila[1]);
+ out32r(PMM1PCIHA, pmmpciha[1]);
+ out32r(PMM1MA, pmmma[1]);
+
+ /*--------------------------------------------------------------------------+
+ * PMM2 is not used. Initialize them to zero.
+ *--------------------------------------------------------------------------*/
+ out32r(PMM2MA, (pmmma[2]&~0x1));
+ out32r(PMM2LA, pmmla[2]);
+ out32r(PMM2PCILA, pmmpcila[2]);
+ out32r(PMM2PCIHA, pmmpciha[2]);
+ out32r(PMM2MA, pmmma[2]);
+
+ /*--------------------------------------------------------------------------+
+ * 405GP PCI Target configuration. (PTM1)
+ * Note: PTM1MS is hardwire enabled but we set the enable bit anyway.
+ *--------------------------------------------------------------------------*/
+ out32r(PTM1LA, ptmla[0]); /* insert address */
+ out32r(PTM1MS, ptmms[0]); /* insert size, enable bit is 1 */
+ pci_write_config_dword(PCIDEVID_405GP, PCI_BASE_ADDRESS_1, ptmpcila[0]);
+
+ /*--------------------------------------------------------------------------+
+ * 405GP PCI Target configuration. (PTM2)
+ *--------------------------------------------------------------------------*/
+ out32r(PTM2LA, ptmla[1]); /* insert address */
+ pci_write_config_dword(PCIDEVID_405GP, PCI_BASE_ADDRESS_2, ptmpcila[1]);
+
+ if (ptmms[1] == 0)
+ {
+ out32r(PTM2MS, 0x00000001); /* set enable bit */
+ pci_write_config_dword(PCIDEVID_405GP, PCI_BASE_ADDRESS_2, 0x00000000);
+ out32r(PTM2MS, 0x00000000); /* disable */
+ }
+ else
+ {
+ out32r(PTM2MS, ptmms[1]); /* insert size, enable bit is 1 */
+ }
+
+ /*
+ * Insert Subsystem Vendor and Device ID
+ */
+ pci_write_config_word(PCIDEVID_405GP, PCI_SUBSYSTEM_VENDOR_ID, CFG_PCI_SUBSYS_VENDORID);
+#ifdef CONFIG_CPCI405
+ if (mfdcr(strap) & PSR_PCI_ARBIT_EN)
+ pci_write_config_word(PCIDEVID_405GP, PCI_SUBSYSTEM_ID, CFG_PCI_SUBSYS_DEVICEID);
+ else
+ pci_write_config_word(PCIDEVID_405GP, PCI_SUBSYSTEM_ID, CFG_PCI_SUBSYS_DEVICEID2);
+#else
+ pci_write_config_word(PCIDEVID_405GP, PCI_SUBSYSTEM_ID, CFG_PCI_SUBSYS_DEVICEID);
+#endif
+
+ /*
+ * Insert Class-code
+ */
+#ifdef CFG_PCI_CLASSCODE
+ pci_write_config_word(PCIDEVID_405GP, PCI_CLASS_SUB_CODE, CFG_PCI_CLASSCODE);
+#endif /* CFG_PCI_CLASSCODE */
+
+ /*--------------------------------------------------------------------------+
+ * If PCI speed = 66Mhz, set 66Mhz capable bit.
+ *--------------------------------------------------------------------------*/
+ if (bd->bi_pci_busfreq >= 66000000) {
+ pci_read_config_word(PCIDEVID_405GP, PCI_STATUS, &temp_short);
+ pci_write_config_word(PCIDEVID_405GP,PCI_STATUS,(temp_short|PCI_STATUS_66MHZ));
+ }
+
+#if (CONFIG_PCI_HOST != PCI_HOST_ADAPTER)
+#if (CONFIG_PCI_HOST == PCI_HOST_AUTO)
+ if ((mfdcr(strap) & PSR_PCI_ARBIT_EN) ||
+ (((s = getenv("pciscan")) != NULL) && (strcmp(s, "yes") == 0)))
+#endif
+ {
+ /*--------------------------------------------------------------------------+
+ * Write the 405GP PCI Configuration regs.
+ * Enable 405GP to be a master on the PCI bus (PMM).
+ * Enable 405GP to act as a PCI memory target (PTM).
+ *--------------------------------------------------------------------------*/
+ pci_read_config_word(PCIDEVID_405GP, PCI_COMMAND, &temp_short);
+ pci_write_config_word(PCIDEVID_405GP, PCI_COMMAND, temp_short |
+ PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY);
+ }
+#endif
+
+#if defined(CONFIG_405EP) /* on ppc405ep vendor id is not set */
+ pci_write_config_word(PCIDEVID_405GP, PCI_VENDOR_ID, 0x1014); /* IBM */
+#endif
+
+ /*
+ * Set HCE bit (Host Configuration Enabled)
+ */
+ pci_read_config_word(PCIDEVID_405GP, PCIBRDGOPT2, &temp_short);
+ pci_write_config_word(PCIDEVID_405GP, PCIBRDGOPT2, (temp_short | 0x0001));
+
+#ifdef CONFIG_PCI_PNP
+ /*--------------------------------------------------------------------------+
+ * Scan the PCI bus and configure devices found.
+ *--------------------------------------------------------------------------*/
+#if (CONFIG_PCI_HOST == PCI_HOST_AUTO)
+ if ((mfdcr(strap) & PSR_PCI_ARBIT_EN) ||
+ (((s = getenv("pciscan")) != NULL) && (strcmp(s, "yes") == 0)))
+#endif
+ {
+#ifdef CONFIG_PCI_SCAN_SHOW
+ printf("PCI: Bus Dev VenId DevId Class Int\n");
+#endif
+ hose->last_busno = pci_hose_scan(hose);
+ }
+#endif /* CONFIG_PCI_PNP */
+
+}
+
+/*
+ * drivers/pci.c skips every host bridge but the 405GP since it could
+ * be set as an Adapter.
+ *
+ * I (Andrew May) don't know what we should do here, but I don't want
+ * the auto setup of a PCI device disabling what is done pci_405gp_init
+ * as has happened before.
+ */
+void pci_405gp_setup_bridge(struct pci_controller *hose, pci_dev_t dev,
+ struct pci_config_table *entry)
+{
+#ifdef DEBUG
+ printf("405gp_setup_bridge\n");
+#endif
+}
+
+/*
+ *
+ */
+
+void pci_405gp_fixup_irq(struct pci_controller *hose, pci_dev_t dev)
+{
+ unsigned char int_line = 0xff;
+
+ /*
+ * Write pci interrupt line register (cpci405 specific)
+ */
+ switch (PCI_DEV(dev) & 0x03)
+ {
+ case 0:
+ int_line = 27 + 2;
+ break;
+ case 1:
+ int_line = 27 + 3;
+ break;
+ case 2:
+ int_line = 27 + 0;
+ break;
+ case 3:
+ int_line = 27 + 1;
+ break;
+ }
+
+ pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, int_line);
+}
+
+void pci_405gp_setup_vga(struct pci_controller *hose, pci_dev_t dev,
+ struct pci_config_table *entry)
+{
+ unsigned int cmdstat = 0;
+
+ pciauto_setup_device(hose, dev, 6, hose->pci_mem, hose->pci_prefetch, hose->pci_io);
+
+ /* always enable io space on vga boards */
+ pci_hose_read_config_dword(hose, dev, PCI_COMMAND, &cmdstat);
+ cmdstat |= PCI_COMMAND_IO;
+ pci_hose_write_config_dword(hose, dev, PCI_COMMAND, cmdstat);
+}
+
+#if !(defined(CONFIG_PIP405) || defined (CONFIG_MIP405)) && !(defined (CONFIG_SC3))
+
+/*
+ *As is these functs get called out of flash Not a horrible
+ *thing, but something to keep in mind. (no statics?)
+ */
+static struct pci_config_table pci_405gp_config_table[] = {
+/*if VendID is 0 it terminates the table search (ie Walnut)*/
+#ifdef CFG_PCI_SUBSYS_VENDORID
+ {CFG_PCI_SUBSYS_VENDORID, PCI_ANY_ID, PCI_CLASS_BRIDGE_HOST,
+ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, pci_405gp_setup_bridge},
+#endif
+ {PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA,
+ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, pci_405gp_setup_vga},
+
+ {PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_NOT_DEFINED_VGA,
+ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, pci_405gp_setup_vga},
+
+ { }
+};
+
+static struct pci_controller hose = {
+ fixup_irq: pci_405gp_fixup_irq,
+ config_table: pci_405gp_config_table,
+};
+
+void pci_init_board(void)
+{
+ /*we want the ptrs to RAM not flash (ie don't use init list)*/
+ hose.fixup_irq = pci_405gp_fixup_irq;
+ hose.config_table = pci_405gp_config_table;
+ pci_405gp_init(&hose);
+}
+
+#endif
+
+#endif /* CONFIG_405GP */
+
+/*-----------------------------------------------------------------------------+
+ * CONFIG_440
+ *-----------------------------------------------------------------------------*/
+#if defined(CONFIG_440)
+
+static struct pci_controller ppc440_hose = {0};
+
+
+int pci_440_init (struct pci_controller *hose)
+{
+ int reg_num = 0;
+
+#ifndef CONFIG_DISABLE_PISE_TEST
+ /*--------------------------------------------------------------------------+
+ * The PCI initialization sequence enable bit must be set ... if not abort
+ * pci setup since updating the bit requires chip reset.
+ *--------------------------------------------------------------------------*/
+#if defined(CONFIG_440GX) || defined(CONFIG_440SP) || defined(CONFIG_440SPE)
+ unsigned long strap;
+
+ mfsdr(sdr_sdstp1,strap);
+ if ((strap & SDR0_SDSTP1_PISE_MASK) == 0) {
+ printf("PCI: SDR0_STRP1[PISE] not set.\n");
+ printf("PCI: Configuration aborted.\n");
+ return -1;
+ }
+#elif defined(CONFIG_440GP)
+ unsigned long strap;
+
+ strap = mfdcr(cpc0_strp1);
+ if ((strap & CPC0_STRP1_PISE_MASK) == 0) {
+ printf("PCI: CPC0_STRP1[PISE] not set.\n");
+ printf("PCI: Configuration aborted.\n");
+ return -1;
+ }
+#endif
+#endif /* CONFIG_DISABLE_PISE_TEST */
+
+ /*--------------------------------------------------------------------------+
+ * PCI controller init
+ *--------------------------------------------------------------------------*/
+ hose->first_busno = 0;
+ hose->last_busno = 0;
+
+ /* PCI I/O space */
+ pci_set_region(hose->regions + reg_num++,
+ 0x00000000,
+ PCIX0_IOBASE,
+ 0x10000,
+ PCI_REGION_IO);
+
+ /* PCI memory space */
+ pci_set_region(hose->regions + reg_num++,
+ CFG_PCI_TARGBASE,
+ CFG_PCI_MEMBASE,
+#ifdef CFG_PCI_MEMSIZE
+ CFG_PCI_MEMSIZE,
+#else
+ 0x10000000,
+#endif
+ PCI_REGION_MEM );
+
+#if defined(CONFIG_PCI_SYS_MEM_BUS) && defined(CONFIG_PCI_SYS_MEM_PHYS) && \
+ defined(CONFIG_PCI_SYS_MEM_SIZE)
+ /* System memory space */
+ pci_set_region(hose->regions + reg_num++,
+ CONFIG_PCI_SYS_MEM_BUS,
+ CONFIG_PCI_SYS_MEM_PHYS,
+ CONFIG_PCI_SYS_MEM_SIZE,
+ PCI_REGION_MEM | PCI_REGION_MEMORY );
+#endif
+
+ hose->region_count = reg_num;
+
+ pci_setup_indirect(hose, PCIX0_CFGADR, PCIX0_CFGDATA);
+
+ /* Let board change/modify hose & do initial checks */
+ if (pci_pre_init (hose) == 0) {
+ printf("PCI: Board-specific initialization failed.\n");
+ printf("PCI: Configuration aborted.\n");
+ return -1;
+ }
+
+ pci_register_hose( hose );
+
+ /*--------------------------------------------------------------------------+
+ * PCI target init
+ *--------------------------------------------------------------------------*/
+#if defined(CFG_PCI_TARGET_INIT)
+ pci_target_init(hose); /* Let board setup pci target */
+#else
+ out16r( PCIX0_SBSYSVID, CFG_PCI_SUBSYS_VENDORID );
+ out16r( PCIX0_SBSYSID, CFG_PCI_SUBSYS_ID );
+ out16r( PCIX0_CLS, 0x00060000 ); /* Bridge, host bridge */
+#endif
+
+#if defined(CONFIG_440GX) || defined(CONFIG_440SPE)
+ out32r( PCIX0_BRDGOPT1, 0x04000060 ); /* PLB Rq pri highest */
+ out32r( PCIX0_BRDGOPT2, in32(PCIX0_BRDGOPT2) | 0x83 ); /* Enable host config, clear Timeout, ensure int src1 */
+#elif defined(PCIX0_BRDGOPT1)
+ out32r( PCIX0_BRDGOPT1, 0x10000060 ); /* PLB Rq pri highest */
+ out32r( PCIX0_BRDGOPT2, in32(PCIX0_BRDGOPT2) | 1 ); /* Enable host config */
+#endif
+
+ /*--------------------------------------------------------------------------+
+ * PCI master init: default is one 256MB region for PCI memory:
+ * 0x3_00000000 - 0x3_0FFFFFFF ==> CFG_PCI_MEMBASE
+ *--------------------------------------------------------------------------*/
+#if defined(CFG_PCI_MASTER_INIT)
+ pci_master_init(hose); /* Let board setup pci master */
+#else
+ out32r( PCIX0_POM0SA, 0 ); /* disable */
+ out32r( PCIX0_POM1SA, 0 ); /* disable */
+ out32r( PCIX0_POM2SA, 0 ); /* disable */
+#if defined(CONFIG_440SPE)
+ out32r( PCIX0_POM0LAL, 0x10000000 );
+ out32r( PCIX0_POM0LAH, 0x0000000c );
+#else
+ out32r( PCIX0_POM0LAL, 0x00000000 );
+ out32r( PCIX0_POM0LAH, 0x00000003 );
+#endif
+ out32r( PCIX0_POM0PCIAL, CFG_PCI_MEMBASE );
+ out32r( PCIX0_POM0PCIAH, 0x00000000 );
+ out32r( PCIX0_POM0SA, 0xf0000001 ); /* 256MB, enabled */
+ out32r( PCIX0_STS, in32r( PCIX0_STS ) & ~0x0000fff8 );
+#endif
+
+ /*--------------------------------------------------------------------------+
+ * PCI host configuration -- we don't make any assumptions here ... the
+ * _board_must_indicate_ what to do -- there's just too many runtime
+ * scenarios in environments like cPCI, PPMC, etc. to make a determination
+ * based on hard-coded values or state of arbiter enable.
+ *--------------------------------------------------------------------------*/
+ if (is_pci_host(hose)) {
+#ifdef CONFIG_PCI_SCAN_SHOW
+ printf("PCI: Bus Dev VenId DevId Class Int\n");
+#endif
+#if !defined(CONFIG_440EP) && !defined(CONFIG_440GR) && \
+ !defined(CONFIG_440EPX) && !defined(CONFIG_440GRX)
+ out16r( PCIX0_CMD, in16r( PCIX0_CMD ) | PCI_COMMAND_MASTER);
+#endif
+ hose->last_busno = pci_hose_scan(hose);
+ }
+ return hose->last_busno;
+}
+
+void pci_init_board(void)
+{
+ int busno;
+
+ busno = pci_440_init (&ppc440_hose);
+#if defined(CONFIG_440SPE)
+ pcie_setup_hoses(busno + 1);
+#endif
+}
+
+#endif /* CONFIG_440 */
+#endif /* CONFIG_PCI */
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