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74xx_7xx: CPCI750: Add CPCI adapter/target support 

The CPCI750 can be built as CPCI host or adapter/target board. This patch
adds support for runtime detection of those variants.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Reinhard Arlt <reinhard.arlt@esd-electronics.com>
This commit is contained in:
Stefan Roese 2009-06-04 13:35:39 +02:00 committed by Wolfgang Denk
parent ae7a2739d7
commit 58f10460b0
4 changed files with 49 additions and 15 deletions
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9
board/esd/cpci750/cpci750.c
View File

@ -140,6 +140,15 @@ void board_prebootm_init (void);
unsigned int INTERNAL_REG_BASE_ADDR = CONFIG_SYS_GT_REGS;
int display_mem_map (void);
/*
* Skip video initialization on slave variant.
* This function will overwrite the weak default in cfb_console.c
*/
int board_video_skip(void)
{
return CPCI750_SLAVE_TEST;
}
/* ------------------------------------------------------------------------- */
/*

4
board/esd/cpci750/ide.c
View File

@ -39,6 +39,8 @@ int ide_preinit (void)
int l;
status = 1;
if (CPCI750_SLAVE_TEST != 0)
return status;
for (l = 0; l < CONFIG_SYS_IDE_MAXBUS; l++) {
ide_bus_offset[l] = -ATA_STATUS;
}
@ -57,7 +59,7 @@ int ide_preinit (void)
ide_bus_offset[1] &= 0xfffffffe;
ide_bus_offset[1] += CONFIG_SYS_PCI0_IO_SPACE;
}
return (status);
return status;
}
void ide_set_reset (int flag) {

49
board/esd/cpci750/pci.c
View File

@ -795,7 +795,6 @@ static int gt_write_config_dword (struct pci_controller *hose,
PCI_DEV (dev), bus,
value);
}
return 0;
}
@ -807,6 +806,9 @@ static void gt_setup_ide (struct pci_controller *hose,
u32 bar_response, bar_value;
int bar;
if (CPCI750_SLAVE_TEST != 0)
return;
for (bar = 0; bar < 6; bar++) {
/*ronen different function for 3rd bank. */
unsigned int offset =
@ -833,6 +835,9 @@ static void gt_setup_cpcidvi (struct pci_controller *hose,
{
u32 bar_value, pci_response;
if (CPCI750_SLAVE_TEST != 0)
return;
pci_hose_read_config_dword (hose, dev, PCI_COMMAND, &pci_response);
pci_hose_write_config_dword (hose, dev, PCI_BASE_ADDRESS_0, 0xffffffff);
pci_hose_read_config_dword (hose, dev, PCI_BASE_ADDRESS_0, &pci_response);
@ -911,6 +916,7 @@ struct pci_controller pci1_hose = {
void pci_init_board (void)
{
unsigned int command;
unsigned int slave;
#ifdef CONFIG_PCI_PNP
unsigned int bar;
#endif
@ -922,6 +928,8 @@ void pci_init_board (void)
gt_cpcidvi_rom.base = 0;
#endif
slave = CPCI750_SLAVE_TEST;
pci0_hose.config_table = gt_config_table;
pci1_hose.config_table = gt_config_table;
@ -957,27 +965,40 @@ void pci_init_board (void)
pci0_hose.cfg_addr = (unsigned int *) PCI_HOST0;
pci_register_hose (&pci0_hose);
pciArbiterEnable (PCI_HOST0);
pciParkingDisable (PCI_HOST0, 1, 1, 1, 1, 1, 1, 1);
command = pciReadConfigReg (PCI_HOST0, PCI_COMMAND, SELF);
command |= PCI_COMMAND_MASTER;
pciWriteConfigReg (PCI_HOST0, PCI_COMMAND, SELF, command);
command = pciReadConfigReg (PCI_HOST0, PCI_COMMAND, SELF);
command |= PCI_COMMAND_MEMORY;
pciWriteConfigReg (PCI_HOST0, PCI_COMMAND, SELF, command);
if (slave == 0) {
pciArbiterEnable (PCI_HOST0);
pciParkingDisable (PCI_HOST0, 1, 1, 1, 1, 1, 1, 1);
command = pciReadConfigReg (PCI_HOST0, PCI_COMMAND, SELF);
command |= PCI_COMMAND_MASTER;
pciWriteConfigReg (PCI_HOST0, PCI_COMMAND, SELF, command);
command = pciReadConfigReg (PCI_HOST0, PCI_COMMAND, SELF);
command |= PCI_COMMAND_MEMORY;
pciWriteConfigReg (PCI_HOST0, PCI_COMMAND, SELF, command);
#ifdef CONFIG_PCI_PNP
pciauto_config_init(&pci0_hose);
pciauto_region_allocate(pci0_hose.pci_io, 0x400, &bar);
pciauto_config_init(&pci0_hose);
pciauto_region_allocate(pci0_hose.pci_io, 0x400, &bar);
#endif
#ifdef CONFIG_PCI_SCAN_SHOW
printf("PCI: Bus Dev VenId DevId Class Int\n");
printf("PCI: Bus Dev VenId DevId Class Int\n");
#endif
pci0_hose.last_busno = pci_hose_scan_bus (&pci0_hose, pci0_hose.first_busno);
pci0_hose.last_busno = pci_hose_scan_bus (&pci0_hose,
pci0_hose.first_busno);
#ifdef DEBUG
gt_pci_bus_mode_display (PCI_HOST1);
gt_pci_bus_mode_display (PCI_HOST1);
#endif
} else {
pciArbiterDisable (PCI_HOST0);
pciParkingDisable (PCI_HOST0, 1, 1, 1, 1, 1, 1, 1);
command = pciReadConfigReg (PCI_HOST0, PCI_COMMAND, SELF);
command |= PCI_COMMAND_MASTER;
pciWriteConfigReg (PCI_HOST0, PCI_COMMAND, SELF, command);
command = pciReadConfigReg (PCI_HOST0, PCI_COMMAND, SELF);
command |= PCI_COMMAND_MEMORY;
pciWriteConfigReg (PCI_HOST0, PCI_COMMAND, SELF, command);
pci0_hose.last_busno = pci0_hose.first_busno;
}
pci1_hose.first_busno = pci0_hose.last_busno + 1;
pci1_hose.last_busno = 0xff;
pci1_hose.current_busno = pci1_hose.first_busno;

2
include/configs/CPCI750.h
View File

@ -627,4 +627,6 @@
#define CONFIG_SYS_BOARD_ASM_INIT 1
#define CPCI750_SLAVE_TEST (((in8(0xf0300000) & 0x80) == 0) ? 0 : 1)
#endif /* __CONFIG_H */