diff options
Diffstat (limited to 'board/dave/common/pci.c')
| -rw-r--r-- | board/dave/common/pci.c | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/board/dave/common/pci.c b/board/dave/common/pci.c deleted file mode 100644 index 71bc8ac..0000000 --- a/board/dave/common/pci.c +++ /dev/null @@ -1,186 +0,0 @@ -/* - * (C) Copyright 2001 - * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <asm/ppc4xx.h> -#include <asm/processor.h> -#include <pci.h> - - -u_long pci9054_iobase; - - -#define PCI_PRIMARY_CAR (0x500000dc) /* PCI config address reg */ -#define PCI_PRIMARY_CDR (0x80000000) /* PCI config data reg */ - - -/*-----------------------------------------------------------------------------+ -| Subroutine: pci9054_read_config_dword -| Description: Read a PCI configuration register -| Inputs: -| hose PCI Controller -| dev PCI Bus+Device+Function number -| offset Configuration register number -| value Address of the configuration register value -| Return value: -| 0 Successful -+-----------------------------------------------------------------------------*/ -int pci9054_read_config_dword(struct pci_controller *hose, - pci_dev_t dev, int offset, u32* value) -{ - unsigned long conAdrVal; - unsigned long val; - - /* generate coded value for CON_ADR register */ - conAdrVal = dev | (offset & 0xfc) | 0x80000000; - - /* Load the CON_ADR (CAR) value first, then read from CON_DATA (CDR) */ - *(unsigned long *)PCI_PRIMARY_CAR = conAdrVal; - - /* Note: *pResult comes back as -1 if machine check happened */ - val = in32r(PCI_PRIMARY_CDR); - - *value = (unsigned long) val; - - out32r(PCI_PRIMARY_CAR, 0); - - if ((*(unsigned long *)0x50000304) & 0x60000000) - { - /* clear pci master/target abort bits */ - *(unsigned long *)0x50000304 = *(unsigned long *)0x50000304; - } - - return 0; -} - -/*-----------------------------------------------------------------------------+ -| Subroutine: pci9054_write_config_dword -| Description: Write a PCI configuration register. -| Inputs: -| hose PCI Controller -| dev PCI Bus+Device+Function number -| offset Configuration register number -| Value Configuration register value -| Return value: -| 0 Successful -| Updated for pass2 errata #6. Need to disable interrupts and clear the -| PCICFGADR reg after writing the PCICFGDATA reg. -+-----------------------------------------------------------------------------*/ -int pci9054_write_config_dword(struct pci_controller *hose, - pci_dev_t dev, int offset, u32 value) -{ - unsigned long conAdrVal; - - conAdrVal = dev | (offset & 0xfc) | 0x80000000; - - *(unsigned long *)PCI_PRIMARY_CAR = conAdrVal; - - out32r(PCI_PRIMARY_CDR, value); - - out32r(PCI_PRIMARY_CAR, 0); - - /* clear pci master/target abort bits */ - *(unsigned long *)0x50000304 = *(unsigned long *)0x50000304; - - return (0); -} - -/*----------------------------------------------------------------------- - */ - -#ifdef CONFIG_DASA_SIM -static void pci_dasa_sim_config_pci9054(struct pci_controller *hose, pci_dev_t dev, - struct pci_config_table *_) -{ - unsigned int iobase; - unsigned short status = 0; - unsigned char timer; - - /* - * Configure PLX PCI9054 - */ - pci_read_config_word(CONFIG_SYS_PCI9054_DEV_FN, PCI_COMMAND, &status); - status |= PCI_COMMAND_MASTER | PCI_COMMAND_IO | PCI_COMMAND_MEMORY; - pci_write_config_word(CONFIG_SYS_PCI9054_DEV_FN, PCI_COMMAND, status); - - /* Check the latency timer for values >= 0x60. - */ - pci_read_config_byte(CONFIG_SYS_PCI9054_DEV_FN, PCI_LATENCY_TIMER, &timer); - if (timer < 0x60) - { - pci_write_config_byte(CONFIG_SYS_PCI9054_DEV_FN, PCI_LATENCY_TIMER, 0x60); - } - - /* Set I/O base register. - */ - pci_write_config_dword(CONFIG_SYS_PCI9054_DEV_FN, PCI_BASE_ADDRESS_0, CONFIG_SYS_PCI9054_IOBASE); - pci_read_config_dword(CONFIG_SYS_PCI9054_DEV_FN, PCI_BASE_ADDRESS_0, &iobase); - - pci9054_iobase = pci_mem_to_phys(CONFIG_SYS_PCI9054_DEV_FN, iobase & PCI_BASE_ADDRESS_MEM_MASK); - - if (pci9054_iobase == 0xffffffff) - { - printf("Error: Can not set I/O base register.\n"); - return; - } -} -#endif - -static struct pci_config_table pci9054_config_table[] = { -#ifndef CONFIG_PCI_PNP - { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, - PCI_BUS(CONFIG_SYS_ETH_DEV_FN), PCI_DEV(CONFIG_SYS_ETH_DEV_FN), PCI_FUNC(CONFIG_SYS_ETH_DEV_FN), - pci_cfgfunc_config_device, { CONFIG_SYS_ETH_IOBASE, - CONFIG_SYS_ETH_IOBASE, - PCI_COMMAND_IO | PCI_COMMAND_MASTER }}, -#ifdef CONFIG_DASA_SIM - { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, - PCI_BUS(CONFIG_SYS_PCI9054_DEV_FN), PCI_DEV(CONFIG_SYS_PCI9054_DEV_FN), PCI_FUNC(CONFIG_SYS_PCI9054_DEV_FN), - pci_dasa_sim_config_pci9054 }, -#endif -#endif - { } -}; - -static struct pci_controller pci9054_hose = { - config_table: pci9054_config_table, -}; - -void pci_init(void) -{ - struct pci_controller *hose = &pci9054_hose; - - /* - * Register the hose - */ - hose->first_busno = 0; - hose->last_busno = 0xff; - - /* System memory space */ - pci_set_region(hose->regions + 0, - 0x00000000, 0x00000000, 0x01000000, - PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); - - /* PCI Memory space */ - pci_set_region(hose->regions + 1, - 0x00000000, 0xc0000000, 0x10000000, - PCI_REGION_MEM); - - pci_set_ops(hose, - pci_hose_read_config_byte_via_dword, - pci_hose_read_config_word_via_dword, - pci9054_read_config_dword, - pci_hose_write_config_byte_via_dword, - pci_hose_write_config_word_via_dword, - pci9054_write_config_dword); - - hose->region_count = 2; - - pci_register_hose(hose); - - hose->last_busno = pci_hose_scan(hose); -} |